/*

 * Copyright (c) 2005, 2009, Oracle and/or its affiliates. All rights reserved.

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

 *

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

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

 * published by the Free Software Foundation.  Oracle designates this

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

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

 *

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

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

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

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

 * accompanied this code).

 *

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

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

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

 *

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

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

 * questions.

 */

package com.sun.tools.javac.file;

import java.io.File;

import java.io.IOException;

import java.util.zip.ZipEntry;

import java.util.zip.ZipFile;

import javax.tools.JavaFileObject;

import com.sun.tools.javac.file.RelativePath.RelativeDirectory;

import com.sun.tools.javac.file.RelativePath.RelativeFile;

import com.sun.tools.javac.util.List;

/**

 * <p><b>This is NOT part of any supported API.

 * If you write code that depends on this, you do so at your own risk.

 * This code and its internal interfaces are subject to change or

 * deletion without notice.</b>

*/

public class SymbolArchive extends ZipArchive {

    final File origFile;

    final RelativeDirectory prefix;

    public SymbolArchive(JavacFileManager fileManager, File orig, ZipFile zdir, RelativeDirectory prefix) throws IOException {

        super(fileManager, zdir, false);

        this.origFile = orig;

        this.prefix = prefix;

        initMap();

    }

    @Override

    void addZipEntry(ZipEntry entry) {

        String name = entry.getName();

        if (!name.startsWith(prefix.path)) {

            return;

        }

        name = name.substring(prefix.path.length());

        int i = name.lastIndexOf('/');

        RelativeDirectory dirname = new RelativeDirectory(name.substring(0, i+1));

        String basename = name.substring(i + 1);

        if (basename.length() == 0) {

            return;

        }

        List<String> list = map.get(dirname);

        if (list == null)

            list = List.nil();

        list = list.prepend(basename);

        map.put(dirname, list);

    }

    @Override

    public JavaFileObject getFileObject(RelativeDirectory subdirectory, String file) {

        RelativeDirectory prefix_subdir = new RelativeDirectory(prefix, subdirectory.path);

        ZipEntry ze = new RelativeFile(prefix_subdir, file).getZipEntry(zfile);

        return new SymbolFileObject(this, file, ze);

    }

    @Override

    public String toString() {

        return "SymbolArchive[" + zfile.getName() + "]";

    }

    /**

     * A subclass of JavaFileObject representing zip entries in a symbol file.

     */

    public static class SymbolFileObject extends ZipFileObject {

        protected SymbolFileObject(SymbolArchive zarch, String name, ZipEntry entry) {

            super(zarch, name, entry);

        }

        @Override

        protected String inferBinaryName(Iterable<? extends File> path) {

            String entryName = entry.getName();

            String prefix = ((SymbolArchive) zarch).prefix.path;

            if (entryName.startsWith(prefix))

                entryName = entryName.substring(prefix.length());

            return removeExtension(entryName).replace('/', '.');

        }

    }

}