1 /*
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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
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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.
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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
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19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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      */
ArchiveEntryResourcePoolEntry(String module, String path, Archive.Entry entry)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
content()53     public InputStream content() {
54         try {
55             return entry.stream();
56         } catch (IOException ex) {
57             throw new UncheckedIOException(ex);
58         }
59     }
60 
61     @Override
contentLength()62     public long contentLength() {
63         return entry.size();
64     }
65 
getImageFileType(Archive.Entry entry)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                 throw new IllegalArgumentException("Unknown archive entry type: " + entry.type());
84         }
85     }
86 }
87