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.IOException;
  29 import java.io.InputStream;
  30 import java.io.UncheckedIOException;
  31 import java.util.Objects;
  32 import jdk.tools.jlink.plugin.ResourcePoolEntry;
  33 
  34 /**
  35  * A ResourcePoolEntry backed by a given Archive Entry.
  36  */
  37 final class ArchiveEntryResourcePoolEntry extends AbstractResourcePoolEntry {
  38     private final Archive.Entry entry;
  39 
  40     /**
  41      * Create a new ArchiveResourcePoolEntry.
  42      *
  43      * @param module The module name.
  44      * @param path The data path identifier.
  45      * @param entry The archive Entry.
  46      */
  47     ArchiveEntryResourcePoolEntry(String module, String path, Archive.Entry entry) {
  48         super(module, path, getImageFileType(Objects.requireNonNull(entry)));
  49         this.entry = entry;
  50     }
  51 
  52     @Override
  53     public InputStream content() {
  54         try {
  55             return entry.stream();
  56         } catch (IOException ex) {
  57             throw new UncheckedIOException(ex);
  58         }
  59     }
  60 
  61     @Override
  62     public long contentLength() {
  63         return entry.size();
  64     }
  65 
  66     private static ResourcePoolEntry.Type getImageFileType(Archive.Entry entry) {
  67         switch(entry.type()) {
  68             case CLASS_OR_RESOURCE:
  69                 return Type.CLASS_OR_RESOURCE;
  70             case CONFIG:
  71                 return Type.CONFIG;
  72             case HEADER_FILE:
  73                 return Type.HEADER_FILE;
  74             case LEGAL_NOTICE:
  75                 return Type.LEGAL_NOTICE;
  76             case MAN_PAGE:
  77                 return Type.MAN_PAGE;
  78             case NATIVE_CMD:
  79                 return Type.NATIVE_CMD;
  80             case NATIVE_LIB:
  81                 return Type.NATIVE_LIB;
  82             default:
  83                 return ResourcePoolEntry.Type.OTHER;
  84         }
  85     }
  86 }