jdk/src/share/classes/java/util/zip/ZipFile.java
author mduigou
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8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile Reviewed-by: mduigou, henryjen, alanb, martin, psandoz Contributed-by: akhil.arora@oracle.com, brian.goetz@oracle.com
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/*
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 * Copyright (c) 1995, 2011, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package java.util.zip;
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import java.io.Closeable;
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import java.io.InputStream;
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import java.io.IOException;
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import java.io.EOFException;
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import java.io.File;
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import java.nio.charset.Charset;
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import java.nio.charset.StandardCharsets;
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import java.util.ArrayDeque;
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import java.util.Deque;
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import java.util.Enumeration;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.NoSuchElementException;
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import java.util.Spliterator;
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import java.util.Spliterators;
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import java.util.WeakHashMap;
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import java.util.stream.Stream;
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import java.util.stream.StreamSupport;
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import static java.util.zip.ZipConstants64.*;
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/**
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 * This class is used to read entries from a zip file.
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 *
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 * <p> Unless otherwise noted, passing a <tt>null</tt> argument to a constructor
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 * or method in this class will cause a {@link NullPointerException} to be
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 * thrown.
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 *
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 * @author      David Connelly
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 */
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public
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class ZipFile implements ZipConstants, Closeable {
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    private long jzfile;  // address of jzfile data
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    private String name;  // zip file name
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    private int total;    // total number of entries
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    private volatile boolean closeRequested = false;
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    private static final int STORED = ZipEntry.STORED;
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    private static final int DEFLATED = ZipEntry.DEFLATED;
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    /**
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     * Mode flag to open a zip file for reading.
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     */
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    public static final int OPEN_READ = 0x1;
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    /**
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     * Mode flag to open a zip file and mark it for deletion.  The file will be
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     * deleted some time between the moment that it is opened and the moment
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     * that it is closed, but its contents will remain accessible via the
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     * <tt>ZipFile</tt> object until either the close method is invoked or the
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     * virtual machine exits.
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     */
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    public static final int OPEN_DELETE = 0x4;
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    static {
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        /* Zip library is loaded from System.initializeSystemClass */
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        initIDs();
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    }
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    private static native void initIDs();
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    private static final boolean usemmap;
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    static {
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        // A system prpperty to disable mmap use to avoid vm crash when
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        // in-use zip file is accidently overwritten by others.
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        String prop = sun.misc.VM.getSavedProperty("sun.zip.disableMemoryMapping");
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        usemmap = (prop == null ||
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                   !(prop.length() == 0 || prop.equalsIgnoreCase("true")));
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    }
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    /**
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     * Opens a zip file for reading.
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     *
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     * <p>First, if there is a security manager, its <code>checkRead</code>
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     * method is called with the <code>name</code> argument as its argument
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     * to ensure the read is allowed.
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     *
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     * <p>The UTF-8 {@link java.nio.charset.Charset charset} is used to
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     * decode the entry names and comments.
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     *
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     * @param name the name of the zip file
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     * @throws ZipException if a ZIP format error has occurred
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     * @throws IOException if an I/O error has occurred
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     * @throws SecurityException if a security manager exists and its
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     *         <code>checkRead</code> method doesn't allow read access to the file.
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     *
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     * @see SecurityManager#checkRead(java.lang.String)
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     */
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    public ZipFile(String name) throws IOException {
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        this(new File(name), OPEN_READ);
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    }
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    /**
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     * Opens a new <code>ZipFile</code> to read from the specified
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     * <code>File</code> object in the specified mode.  The mode argument
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     * must be either <tt>OPEN_READ</tt> or <tt>OPEN_READ | OPEN_DELETE</tt>.
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     *
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     * <p>First, if there is a security manager, its <code>checkRead</code>
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     * method is called with the <code>name</code> argument as its argument to
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     * ensure the read is allowed.
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     *
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     * <p>The UTF-8 {@link java.nio.charset.Charset charset} is used to
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     * decode the entry names and comments
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     *
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     * @param file the ZIP file to be opened for reading
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     * @param mode the mode in which the file is to be opened
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     * @throws ZipException if a ZIP format error has occurred
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     * @throws IOException if an I/O error has occurred
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     * @throws SecurityException if a security manager exists and
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     *         its <code>checkRead</code> method
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     *         doesn't allow read access to the file,
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     *         or its <code>checkDelete</code> method doesn't allow deleting
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     *         the file when the <tt>OPEN_DELETE</tt> flag is set.
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     * @throws IllegalArgumentException if the <tt>mode</tt> argument is invalid
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     * @see SecurityManager#checkRead(java.lang.String)
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     * @since 1.3
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     */
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    public ZipFile(File file, int mode) throws IOException {
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        this(file, mode, StandardCharsets.UTF_8);
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    }
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    /**
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     * Opens a ZIP file for reading given the specified File object.
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     *
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     * <p>The UTF-8 {@link java.nio.charset.Charset charset} is used to
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     * decode the entry names and comments.
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     *
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     * @param file the ZIP file to be opened for reading
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     * @throws ZipException if a ZIP format error has occurred
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     * @throws IOException if an I/O error has occurred
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     */
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    public ZipFile(File file) throws ZipException, IOException {
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        this(file, OPEN_READ);
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    }
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    private ZipCoder zc;
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    /**
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     * Opens a new <code>ZipFile</code> to read from the specified
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     * <code>File</code> object in the specified mode.  The mode argument
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     * must be either <tt>OPEN_READ</tt> or <tt>OPEN_READ | OPEN_DELETE</tt>.
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     *
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     * <p>First, if there is a security manager, its <code>checkRead</code>
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     * method is called with the <code>name</code> argument as its argument to
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     * ensure the read is allowed.
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     *
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     * @param file the ZIP file to be opened for reading
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     * @param mode the mode in which the file is to be opened
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     * @param charset
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     *        the {@linkplain java.nio.charset.Charset charset} to
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     *        be used to decode the ZIP entry name and comment that are not
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     *        encoded by using UTF-8 encoding (indicated by entry's general
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     *        purpose flag).
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     *
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     * @throws ZipException if a ZIP format error has occurred
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     * @throws IOException if an I/O error has occurred
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     *
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     * @throws SecurityException
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     *         if a security manager exists and its <code>checkRead</code>
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     *         method doesn't allow read access to the file,or its
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     *         <code>checkDelete</code> method doesn't allow deleting the
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     *         file when the <tt>OPEN_DELETE</tt> flag is set
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     *
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     * @throws IllegalArgumentException if the <tt>mode</tt> argument is invalid
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     *
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     * @see SecurityManager#checkRead(java.lang.String)
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     *
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     * @since 1.7
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     */
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    public ZipFile(File file, int mode, Charset charset) throws IOException
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    {
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        if (((mode & OPEN_READ) == 0) ||
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            ((mode & ~(OPEN_READ | OPEN_DELETE)) != 0)) {
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            throw new IllegalArgumentException("Illegal mode: 0x"+
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                                               Integer.toHexString(mode));
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        }
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        String name = file.getPath();
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        SecurityManager sm = System.getSecurityManager();
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        if (sm != null) {
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            sm.checkRead(name);
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            if ((mode & OPEN_DELETE) != 0) {
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                sm.checkDelete(name);
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            }
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        }
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        if (charset == null)
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            throw new NullPointerException("charset is null");
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        this.zc = ZipCoder.get(charset);
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        long t0 = System.nanoTime();
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        jzfile = open(name, mode, file.lastModified(), usemmap);
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        sun.misc.PerfCounter.getZipFileOpenTime().addElapsedTimeFrom(t0);
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        sun.misc.PerfCounter.getZipFileCount().increment();
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        this.name = name;
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        this.total = getTotal(jzfile);
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    }
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    /**
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     * Opens a zip file for reading.
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     *
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     * <p>First, if there is a security manager, its <code>checkRead</code>
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     * method is called with the <code>name</code> argument as its argument
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     * to ensure the read is allowed.
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     *
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     * @param name the name of the zip file
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     * @param charset
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     *        the {@linkplain java.nio.charset.Charset charset} to
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     *        be used to decode the ZIP entry name and comment that are not
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     *        encoded by using UTF-8 encoding (indicated by entry's general
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     *        purpose flag).
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     *
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     * @throws ZipException if a ZIP format error has occurred
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     * @throws IOException if an I/O error has occurred
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     * @throws SecurityException
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     *         if a security manager exists and its <code>checkRead</code>
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     *         method doesn't allow read access to the file
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     *
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     * @see SecurityManager#checkRead(java.lang.String)
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     *
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     * @since 1.7
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     */
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    public ZipFile(String name, Charset charset) throws IOException
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    {
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        this(new File(name), OPEN_READ, charset);
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    }
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    /**
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     * Opens a ZIP file for reading given the specified File object.
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     * @param file the ZIP file to be opened for reading
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     * @param charset
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     *        The {@linkplain java.nio.charset.Charset charset} to be
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     *        used to decode the ZIP entry name and comment (ignored if
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     *        the <a href="package-summary.html#lang_encoding"> language
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     *        encoding bit</a> of the ZIP entry's general purpose bit
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     *        flag is set).
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     *
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     * @throws ZipException if a ZIP format error has occurred
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     * @throws IOException if an I/O error has occurred
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     *
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     * @since 1.7
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     */
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    public ZipFile(File file, Charset charset) throws IOException
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    {
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        this(file, OPEN_READ, charset);
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    }
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    /**
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     * Returns the zip file comment, or null if none.
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     *
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     * @return the comment string for the zip file, or null if none
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     *
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     * @throws IllegalStateException if the zip file has been closed
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     *
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     * Since 1.7
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     */
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    public String getComment() {
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        synchronized (this) {
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            ensureOpen();
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            byte[] bcomm = getCommentBytes(jzfile);
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            if (bcomm == null)
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                return null;
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            return zc.toString(bcomm, bcomm.length);
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        }
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    }
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    /**
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     * Returns the zip file entry for the specified name, or null
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     * if not found.
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     *
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     * @param name the name of the entry
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     * @return the zip file entry, or null if not found
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     * @throws IllegalStateException if the zip file has been closed
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     */
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    public ZipEntry getEntry(String name) {
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        if (name == null) {
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            throw new NullPointerException("name");
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        }
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        long jzentry = 0;
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        synchronized (this) {
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            ensureOpen();
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            jzentry = getEntry(jzfile, zc.getBytes(name), true);
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            if (jzentry != 0) {
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                ZipEntry ze = getZipEntry(name, jzentry);
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                freeEntry(jzfile, jzentry);
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                return ze;
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            }
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        }
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        return null;
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    }
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    private static native long getEntry(long jzfile, byte[] name,
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                                        boolean addSlash);
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    // freeEntry releases the C jzentry struct.
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    private static native void freeEntry(long jzfile, long jzentry);
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    // the outstanding inputstreams that need to be closed,
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    // mapped to the inflater objects they use.
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    private final Map<InputStream, Inflater> streams = new WeakHashMap<>();
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   328
    /**
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     * Returns an input stream for reading the contents of the specified
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   330
     * zip file entry.
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   331
     *
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   332
     * <p> Closing this ZIP file will, in turn, close all input
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   333
     * streams that have been returned by invocations of this method.
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   334
     *
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   335
     * @param entry the zip file entry
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   336
     * @return the input stream for reading the contents of the specified
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   337
     * zip file entry.
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   338
     * @throws ZipException if a ZIP format error has occurred
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   339
     * @throws IOException if an I/O error has occurred
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   340
     * @throws IllegalStateException if the zip file has been closed
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   341
     */
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   342
    public InputStream getInputStream(ZipEntry entry) throws IOException {
2592
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   343
        if (entry == null) {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
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   344
            throw new NullPointerException("entry");
2
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   345
        }
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   346
        long jzentry = 0;
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   347
        ZipFileInputStream in = null;
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   348
        synchronized (this) {
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   349
            ensureOpen();
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   350
            if (!zc.isUTF8() && (entry.flag & EFS) != 0) {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
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   351
                jzentry = getEntry(jzfile, zc.getBytesUTF8(entry.name), false);
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   352
            } else {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
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   353
                jzentry = getEntry(jzfile, zc.getBytes(entry.name), false);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
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   354
            }
2
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   355
            if (jzentry == 0) {
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   356
                return null;
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   357
            }
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   358
            in = new ZipFileInputStream(jzentry);
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   359
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700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
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diff changeset
   360
            switch (getEntryMethod(jzentry)) {
700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
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diff changeset
   361
            case STORED:
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diff changeset
   362
                synchronized (streams) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
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diff changeset
   363
                    streams.put(in, null);
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
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diff changeset
   364
                }
7550
700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
sherman
parents: 6882
diff changeset
   365
                return in;
700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
sherman
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diff changeset
   366
            case DEFLATED:
700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
sherman
parents: 6882
diff changeset
   367
                // MORE: Compute good size for inflater stream:
700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
sherman
parents: 6882
diff changeset
   368
                long size = getEntrySize(jzentry) + 2; // Inflater likes a bit of slack
700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
sherman
parents: 6882
diff changeset
   369
                if (size > 65536) size = 8192;
700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
sherman
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   370
                if (size <= 0) size = 4096;
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
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diff changeset
   371
                Inflater inf = getInflater();
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   372
                InputStream is =
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   373
                    new ZipFileInflaterInputStream(in, inf, (int)size);
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   374
                synchronized (streams) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   375
                    streams.put(is, inf);
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   376
                }
7550
700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
sherman
parents: 6882
diff changeset
   377
                return is;
700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
sherman
parents: 6882
diff changeset
   378
            default:
700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
sherman
parents: 6882
diff changeset
   379
                throw new ZipException("invalid compression method");
700dd1df3aa8 7003462: cannot read InputStream returned by java.util.ZipFile.getInputStream(ZipEntry)
sherman
parents: 6882
diff changeset
   380
            }
2
90ce3da70b43 Initial load
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parents:
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   381
        }
90ce3da70b43 Initial load
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parents:
diff changeset
   382
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   383
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   384
    private class ZipFileInflaterInputStream extends InflaterInputStream {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   385
        private volatile boolean closeRequested = false;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   386
        private boolean eof = false;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   387
        private final ZipFileInputStream zfin;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   388
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   389
        ZipFileInflaterInputStream(ZipFileInputStream zfin, Inflater inf,
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   390
                int size) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   391
            super(zfin, inf, size);
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   392
            this.zfin = zfin;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   393
        }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   394
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   395
        public void close() throws IOException {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   396
            if (closeRequested)
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   397
                return;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   398
            closeRequested = true;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   399
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   400
            super.close();
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   401
            Inflater inf;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   402
            synchronized (streams) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   403
                inf = streams.remove(this);
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   404
            }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   405
            if (inf != null) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   406
                releaseInflater(inf);
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   407
            }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   408
        }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   409
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   410
        // Override fill() method to provide an extra "dummy" byte
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   411
        // at the end of the input stream. This is required when
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   412
        // using the "nowrap" Inflater option.
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   413
        protected void fill() throws IOException {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   414
            if (eof) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   415
                throw new EOFException("Unexpected end of ZLIB input stream");
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   416
            }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   417
            len = in.read(buf, 0, buf.length);
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   418
            if (len == -1) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   419
                buf[0] = 0;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   420
                len = 1;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   421
                eof = true;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   422
            }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   423
            inf.setInput(buf, 0, len);
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   424
        }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   425
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   426
        public int available() throws IOException {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   427
            if (closeRequested)
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   428
                return 0;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   429
            long avail = zfin.size() - inf.getBytesWritten();
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   430
            return (avail > (long) Integer.MAX_VALUE ?
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   431
                    Integer.MAX_VALUE : (int) avail);
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   432
        }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   433
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   434
        protected void finalize() throws Throwable {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   435
            close();
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   436
        }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   437
    }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   438
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   439
    /*
90ce3da70b43 Initial load
duke
parents:
diff changeset
   440
     * Gets an inflater from the list of available inflaters or allocates
90ce3da70b43 Initial load
duke
parents:
diff changeset
   441
     * a new one.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   442
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   443
    private Inflater getInflater() {
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   444
        Inflater inf;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   445
        synchronized (inflaterCache) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   446
            while (null != (inf = inflaterCache.poll())) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   447
                if (false == inf.ended()) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   448
                    return inf;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   449
                }
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   450
            }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   451
        }
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   452
        return new Inflater(true);
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   453
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   454
90ce3da70b43 Initial load
duke
parents:
diff changeset
   455
    /*
90ce3da70b43 Initial load
duke
parents:
diff changeset
   456
     * Releases the specified inflater to the list of available inflaters.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   457
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   458
    private void releaseInflater(Inflater inf) {
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   459
        if (false == inf.ended()) {
1158
34d64e750f8e 6661861: Decrease memory use of Inflaters by ZipFile
bristor
parents: 2
diff changeset
   460
            inf.reset();
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   461
            synchronized (inflaterCache) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   462
                inflaterCache.add(inf);
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   463
            }
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   464
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   465
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   466
90ce3da70b43 Initial load
duke
parents:
diff changeset
   467
    // List of available Inflater objects for decompression
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   468
    private Deque<Inflater> inflaterCache = new ArrayDeque<>();
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   469
90ce3da70b43 Initial load
duke
parents:
diff changeset
   470
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   471
     * Returns the path name of the ZIP file.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   472
     * @return the path name of the ZIP file
90ce3da70b43 Initial load
duke
parents:
diff changeset
   473
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   474
    public String getName() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   475
        return name;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   476
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   477
17421
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   478
    private class ZipEntryIterator implements Enumeration<ZipEntry>, Iterator<ZipEntry> {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   479
        private int i = 0;
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   480
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   481
        public ZipEntryIterator() {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   482
            ensureOpen();
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   483
        }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   484
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   485
        public boolean hasMoreElements() {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   486
            return hasNext();
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   487
        }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   488
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   489
        public boolean hasNext() {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   490
            synchronized (ZipFile.this) {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   491
                ensureOpen();
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   492
                return i < total;
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   493
            }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   494
        }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   495
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   496
        public ZipEntry nextElement() {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   497
            return next();
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   498
        }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   499
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   500
        public ZipEntry next() {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   501
            synchronized (ZipFile.this) {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   502
                ensureOpen();
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   503
                if (i >= total) {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   504
                    throw new NoSuchElementException();
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   505
                }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   506
                long jzentry = getNextEntry(jzfile, i++);
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   507
                if (jzentry == 0) {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   508
                    String message;
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   509
                    if (closeRequested) {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   510
                        message = "ZipFile concurrently closed";
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   511
                    } else {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   512
                        message = getZipMessage(ZipFile.this.jzfile);
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   513
                    }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   514
                    throw new ZipError("jzentry == 0" +
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   515
                                       ",\n jzfile = " + ZipFile.this.jzfile +
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   516
                                       ",\n total = " + ZipFile.this.total +
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   517
                                       ",\n name = " + ZipFile.this.name +
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   518
                                       ",\n i = " + i +
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   519
                                       ",\n message = " + message
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   520
                        );
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   521
                }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   522
                ZipEntry ze = getZipEntry(null, jzentry);
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   523
                freeEntry(jzfile, jzentry);
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   524
                return ze;
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   525
            }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   526
        }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   527
    }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   528
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   529
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   530
     * Returns an enumeration of the ZIP file entries.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   531
     * @return an enumeration of the ZIP file entries
90ce3da70b43 Initial load
duke
parents:
diff changeset
   532
     * @throws IllegalStateException if the zip file has been closed
90ce3da70b43 Initial load
duke
parents:
diff changeset
   533
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   534
    public Enumeration<? extends ZipEntry> entries() {
17421
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   535
        return new ZipEntryIterator();
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   536
    }
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   537
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   538
    /**
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   539
     * Return an ordered {@code Stream} over the ZIP file entries.
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   540
     * Entries appear in the {@code Stream} in the order they appear in
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   541
     * the central directory of the ZIP file.
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   542
     *
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   543
     * @return an ordered {@code Stream} of entries in this ZIP file
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   544
     * @throws IllegalStateException if the zip file has been closed
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   545
     * @since 1.8
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   546
     */
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   547
    public Stream<? extends ZipEntry> stream() {
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   548
        return StreamSupport.stream(Spliterators.spliterator(
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   549
                new ZipEntryIterator(), size(),
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   550
                Spliterator.ORDERED | Spliterator.DISTINCT |
f3fbcfe6e2cf 8012645: Stream methods on BitSet, Random, ThreadLocalRandom, ZipFile
mduigou
parents: 9676
diff changeset
   551
                        Spliterator.IMMUTABLE | Spliterator.NONNULL));
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   552
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   553
2592
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   554
    private ZipEntry getZipEntry(String name, long jzentry) {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   555
        ZipEntry e = new ZipEntry();
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   556
        e.flag = getEntryFlag(jzentry);  // get the flag first
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   557
        if (name != null) {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   558
            e.name = name;
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   559
        } else {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   560
            byte[] bname = getEntryBytes(jzentry, JZENTRY_NAME);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   561
            if (!zc.isUTF8() && (e.flag & EFS) != 0) {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   562
                e.name = zc.toStringUTF8(bname, bname.length);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   563
            } else {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   564
                e.name = zc.toString(bname, bname.length);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   565
            }
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   566
        }
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   567
        e.time = getEntryTime(jzentry);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   568
        e.crc = getEntryCrc(jzentry);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   569
        e.size = getEntrySize(jzentry);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   570
        e. csize = getEntryCSize(jzentry);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   571
        e.method = getEntryMethod(jzentry);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   572
        e.extra = getEntryBytes(jzentry, JZENTRY_EXTRA);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   573
        byte[] bcomm = getEntryBytes(jzentry, JZENTRY_COMMENT);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   574
        if (bcomm == null) {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   575
            e.comment = null;
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   576
        } else {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   577
            if (!zc.isUTF8() && (e.flag & EFS) != 0) {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   578
                e.comment = zc.toStringUTF8(bcomm, bcomm.length);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   579
            } else {
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   580
                e.comment = zc.toString(bcomm, bcomm.length);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   581
            }
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   582
        }
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   583
        return e;
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   584
    }
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   585
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   586
    private static native long getNextEntry(long jzfile, int i);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   587
90ce3da70b43 Initial load
duke
parents:
diff changeset
   588
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   589
     * Returns the number of entries in the ZIP file.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   590
     * @return the number of entries in the ZIP file
90ce3da70b43 Initial load
duke
parents:
diff changeset
   591
     * @throws IllegalStateException if the zip file has been closed
90ce3da70b43 Initial load
duke
parents:
diff changeset
   592
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   593
    public int size() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   594
        ensureOpen();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   595
        return total;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   596
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   597
90ce3da70b43 Initial load
duke
parents:
diff changeset
   598
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   599
     * Closes the ZIP file.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   600
     * <p> Closing this ZIP file will close all of the input streams
90ce3da70b43 Initial load
duke
parents:
diff changeset
   601
     * previously returned by invocations of the {@link #getInputStream
90ce3da70b43 Initial load
duke
parents:
diff changeset
   602
     * getInputStream} method.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   603
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   604
     * @throws IOException if an I/O error has occurred
90ce3da70b43 Initial load
duke
parents:
diff changeset
   605
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   606
    public void close() throws IOException {
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   607
        if (closeRequested)
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   608
            return;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   609
        closeRequested = true;
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   610
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   611
        synchronized (this) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   612
            // Close streams, release their inflaters
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   613
            synchronized (streams) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   614
                if (false == streams.isEmpty()) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   615
                    Map<InputStream, Inflater> copy = new HashMap<>(streams);
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   616
                    streams.clear();
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   617
                    for (Map.Entry<InputStream, Inflater> e : copy.entrySet()) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   618
                        e.getKey().close();
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   619
                        Inflater inf = e.getValue();
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   620
                        if (inf != null) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   621
                            inf.end();
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   622
                        }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   623
                    }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   624
                }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   625
            }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   626
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   627
            // Release cached inflaters
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   628
            Inflater inf;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   629
            synchronized (inflaterCache) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   630
                while (null != (inf = inflaterCache.poll())) {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   631
                    inf.end();
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   632
                }
2915
92e31faf9ffc 6728376: Wrong error handling in Java_java_util_zip_Deflater_deflateBytes leads to size 0 if compress fails
sherman
parents: 2704
diff changeset
   633
            }
92e31faf9ffc 6728376: Wrong error handling in Java_java_util_zip_Deflater_deflateBytes leads to size 0 if compress fails
sherman
parents: 2704
diff changeset
   634
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   635
            if (jzfile != 0) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   636
                // Close the zip file
90ce3da70b43 Initial load
duke
parents:
diff changeset
   637
                long zf = this.jzfile;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   638
                jzfile = 0;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   639
90ce3da70b43 Initial load
duke
parents:
diff changeset
   640
                close(zf);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   641
            }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   642
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   643
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   644
90ce3da70b43 Initial load
duke
parents:
diff changeset
   645
    /**
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   646
     * Ensures that the system resources held by this ZipFile object are
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   647
     * released when there are no more references to it.
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   648
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   649
     * <p>
90ce3da70b43 Initial load
duke
parents:
diff changeset
   650
     * Since the time when GC would invoke this method is undetermined,
90ce3da70b43 Initial load
duke
parents:
diff changeset
   651
     * it is strongly recommended that applications invoke the <code>close</code>
90ce3da70b43 Initial load
duke
parents:
diff changeset
   652
     * method as soon they have finished accessing this <code>ZipFile</code>.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   653
     * This will prevent holding up system resources for an undetermined
90ce3da70b43 Initial load
duke
parents:
diff changeset
   654
     * length of time.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   655
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   656
     * @throws IOException if an I/O error has occurred
90ce3da70b43 Initial load
duke
parents:
diff changeset
   657
     * @see    java.util.zip.ZipFile#close()
90ce3da70b43 Initial load
duke
parents:
diff changeset
   658
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   659
    protected void finalize() throws IOException {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   660
        close();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   661
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   662
90ce3da70b43 Initial load
duke
parents:
diff changeset
   663
    private static native void close(long jzfile);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   664
90ce3da70b43 Initial load
duke
parents:
diff changeset
   665
    private void ensureOpen() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   666
        if (closeRequested) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   667
            throw new IllegalStateException("zip file closed");
90ce3da70b43 Initial load
duke
parents:
diff changeset
   668
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   669
90ce3da70b43 Initial load
duke
parents:
diff changeset
   670
        if (jzfile == 0) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   671
            throw new IllegalStateException("The object is not initialized.");
90ce3da70b43 Initial load
duke
parents:
diff changeset
   672
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   673
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   674
90ce3da70b43 Initial load
duke
parents:
diff changeset
   675
    private void ensureOpenOrZipException() throws IOException {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   676
        if (closeRequested) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   677
            throw new ZipException("ZipFile closed");
90ce3da70b43 Initial load
duke
parents:
diff changeset
   678
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   679
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   680
90ce3da70b43 Initial load
duke
parents:
diff changeset
   681
    /*
90ce3da70b43 Initial load
duke
parents:
diff changeset
   682
     * Inner class implementing the input stream used to read a
90ce3da70b43 Initial load
duke
parents:
diff changeset
   683
     * (possibly compressed) zip file entry.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   684
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   685
   private class ZipFileInputStream extends InputStream {
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   686
        private volatile boolean closeRequested = false;
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   687
        protected long jzentry; // address of jzentry data
90ce3da70b43 Initial load
duke
parents:
diff changeset
   688
        private   long pos;     // current position within entry data
90ce3da70b43 Initial load
duke
parents:
diff changeset
   689
        protected long rem;     // number of remaining bytes within entry
90ce3da70b43 Initial load
duke
parents:
diff changeset
   690
        protected long size;    // uncompressed size of this entry
90ce3da70b43 Initial load
duke
parents:
diff changeset
   691
90ce3da70b43 Initial load
duke
parents:
diff changeset
   692
        ZipFileInputStream(long jzentry) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   693
            pos = 0;
2592
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   694
            rem = getEntryCSize(jzentry);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   695
            size = getEntrySize(jzentry);
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   696
            this.jzentry = jzentry;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   697
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   698
90ce3da70b43 Initial load
duke
parents:
diff changeset
   699
        public int read(byte b[], int off, int len) throws IOException {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   700
            if (rem == 0) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   701
                return -1;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   702
            }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   703
            if (len <= 0) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   704
                return 0;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   705
            }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   706
            if (len > rem) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   707
                len = (int) rem;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   708
            }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   709
            synchronized (ZipFile.this) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   710
                ensureOpenOrZipException();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   711
90ce3da70b43 Initial load
duke
parents:
diff changeset
   712
                len = ZipFile.read(ZipFile.this.jzfile, jzentry, pos, b,
90ce3da70b43 Initial load
duke
parents:
diff changeset
   713
                                   off, len);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   714
            }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   715
            if (len > 0) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   716
                pos += len;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   717
                rem -= len;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   718
            }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   719
            if (rem == 0) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   720
                close();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   721
            }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   722
            return len;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   723
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   724
90ce3da70b43 Initial load
duke
parents:
diff changeset
   725
        public int read() throws IOException {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   726
            byte[] b = new byte[1];
90ce3da70b43 Initial load
duke
parents:
diff changeset
   727
            if (read(b, 0, 1) == 1) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   728
                return b[0] & 0xff;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   729
            } else {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   730
                return -1;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   731
            }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   732
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   733
90ce3da70b43 Initial load
duke
parents:
diff changeset
   734
        public long skip(long n) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   735
            if (n > rem)
90ce3da70b43 Initial load
duke
parents:
diff changeset
   736
                n = rem;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   737
            pos += n;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   738
            rem -= n;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   739
            if (rem == 0) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   740
                close();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   741
            }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   742
            return n;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   743
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   744
90ce3da70b43 Initial load
duke
parents:
diff changeset
   745
        public int available() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   746
            return rem > Integer.MAX_VALUE ? Integer.MAX_VALUE : (int) rem;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   747
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   748
90ce3da70b43 Initial load
duke
parents:
diff changeset
   749
        public long size() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   750
            return size;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   751
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   752
90ce3da70b43 Initial load
duke
parents:
diff changeset
   753
        public void close() {
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   754
            if (closeRequested)
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   755
                return;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   756
            closeRequested = true;
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   757
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   758
            rem = 0;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   759
            synchronized (ZipFile.this) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   760
                if (jzentry != 0 && ZipFile.this.jzfile != 0) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   761
                    freeEntry(ZipFile.this.jzfile, jzentry);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   762
                    jzentry = 0;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   763
                }
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   764
            }
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   765
            synchronized (streams) {
2915
92e31faf9ffc 6728376: Wrong error handling in Java_java_util_zip_Deflater_deflateBytes leads to size 0 if compress fails
sherman
parents: 2704
diff changeset
   766
                streams.remove(this);
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   767
            }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   768
        }
9281
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   769
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   770
        protected void finalize() {
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   771
            close();
41e796d1b6c1 7031076: Retained ZipFile InputStreams increase heap demand
sherman
parents: 9035
diff changeset
   772
        }
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   773
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   774
2592
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   775
5148
2bf5469864ea 6929479: Add a system property sun.zip.disableMemoryMapping to disable mmap use in ZipFile
sherman
parents: 3849
diff changeset
   776
    private static native long open(String name, int mode, long lastModified,
2bf5469864ea 6929479: Add a system property sun.zip.disableMemoryMapping to disable mmap use in ZipFile
sherman
parents: 3849
diff changeset
   777
                                    boolean usemmap) throws IOException;
2592
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   778
    private static native int getTotal(long jzfile);
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   779
    private static native int read(long jzfile, long jzentry,
90ce3da70b43 Initial load
duke
parents:
diff changeset
   780
                                   long pos, byte[] b, int off, int len);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   781
2592
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   782
    // access to the native zentry object
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   783
    private static native long getEntryTime(long jzentry);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   784
    private static native long getEntryCrc(long jzentry);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   785
    private static native long getEntryCSize(long jzentry);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   786
    private static native long getEntrySize(long jzentry);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   787
    private static native int getEntryMethod(long jzentry);
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   788
    private static native int getEntryFlag(long jzentry);
3078
c491f0d2a8aa 6707281: Adler32.update() JavaDoc is wrong
sherman
parents: 2915
diff changeset
   789
    private static native byte[] getCommentBytes(long jzfile);
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   790
2592
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   791
    private static final int JZENTRY_NAME = 0;
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   792
    private static final int JZENTRY_EXTRA = 1;
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   793
    private static final int JZENTRY_COMMENT = 2;
ef26f663a2ba 4244499: ZipEntry() does not convert filenames from Unicode to platform
sherman
parents: 1158
diff changeset
   794
    private static native byte[] getEntryBytes(long jzentry, int type);
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
   795
90ce3da70b43 Initial load
duke
parents:
diff changeset
   796
    private static native String getZipMessage(long jzfile);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   797
}