1 /*

     2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package jdk.tools.jlink.internal;

    27 

    28 import java.io.ByteArrayInputStream;

    29 import java.io.IOException;

    30 import java.io.InputStream;

    31 import java.io.OutputStream;

    32 import java.io.UncheckedIOException;

    33 import java.util.Objects;

    34 

    35 /**

    36  * A ModuleEntry backed by a given byte[].

    37  */

    38 class ByteArrayModuleEntry extends AbstractModuleEntry {

    39     private final byte[] buffer;

    40 

    41     /**

    42      * Create a new ByteArrayModuleEntry.

    43      *

    44      * @param module The module name.

    45      * @param path The data path identifier.

    46      * @param type The data type.

    47      * @param buf  The byte buffer.

    48      */

    49     ByteArrayModuleEntry(String module, String path, Type type, byte[] buffer) {

    50         super(module, path, type);

    51         this.buffer = Objects.requireNonNull(buffer);

    52     }

    53 

    54     @Override

    55     public byte[] getBytes() {

    56         return buffer.clone();

    57     }

    58 

    59     @Override

    60     public InputStream stream() {

    61         return new ByteArrayInputStream(buffer);

    62     }

    63 

    64     @Override

    65     public void write(OutputStream out) {

    66         try {

    67             out.write(buffer);

    68         } catch (IOException ex) {

    69             throw new UncheckedIOException(ex);

    70         }

    71     }

    72 

    73     @Override

    74     public long getLength() {

    75         return buffer.length;

    76     }

    77 }