1 /*
   2  * Copyright (c) 2014, 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.nio.file.Path;
  29 import java.util.Objects;
  30 import java.util.zip.ZipEntry;
  31 
  32 import jdk.tools.jlink.internal.Archive.Entry.EntryType;
  33 
  34 /**
  35  * An Archive backed by a jar file.
  36  */
  37 public class ModularJarArchive extends JarArchive {
  38 
  39     private static final String JAR_EXT = ".jar";
  40     private static final String MODULE_INFO = "module-info.class";
  41 
  42     public ModularJarArchive(String mn, Path jmod) {
  43         super(mn, jmod);
  44         String filename = Objects.requireNonNull(jmod.getFileName()).toString();
  45         if (!filename.endsWith(JAR_EXT)) {
  46             throw new UnsupportedOperationException("Unsupported format: " + filename);
  47         }
  48     }
  49 
  50     @Override
  51     EntryType toEntryType(String section) {
  52         return EntryType.CLASS_OR_RESOURCE;
  53     }
  54 
  55     @Override
  56     Entry toEntry(ZipEntry ze) {
  57         if (ze.isDirectory()) {
  58             return null;
  59         }
  60 
  61         String name = ze.getName();
  62         EntryType type = toEntryType(name);
  63         return new JarEntry(ze.getName(), getFileName(name), type, zipFile, ze);
  64     }
  65 
  66     @Override
  67     String getFileName(String entryName) {
  68         return entryName;
  69     }
  70 }