1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
/*
* Copyright (c) 2015, 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.
*
* 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.
*/
/*
* @test
* @summary Test previsitor
* @author Andrei Eremeev
* @modules jdk.jlink/jdk.tools.jlink
* jdk.jlink/jdk.tools.jlink.internal
* jdk.jlink/jdk.tools.jlink.plugin
* @run main/othervm PrevisitorTest
*/
import java.nio.ByteOrder;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.stream.Collectors;
import jdk.tools.jlink.internal.ImagePluginConfiguration;
import jdk.tools.jlink.internal.Jlink;
import jdk.tools.jlink.internal.PluginRepository;
import jdk.tools.jlink.internal.ImagePluginStack;
import jdk.tools.jlink.internal.ResourcePoolManager;
import jdk.tools.jlink.internal.ResourcePoolManager.ResourcePoolImpl;
import jdk.tools.jlink.internal.ResourcePrevisitor;
import jdk.tools.jlink.internal.StringTable;
import jdk.tools.jlink.plugin.Plugin;
import jdk.tools.jlink.plugin.ResourcePool;
import jdk.tools.jlink.plugin.ResourcePoolBuilder;
import jdk.tools.jlink.plugin.ResourcePoolEntry;
public class PrevisitorTest {
public static void main(String[] args) throws Exception {
new PrevisitorTest().test();
}
private static Plugin createPlugin(String name) {
return Jlink.newPlugin(name, Collections.emptyMap(), null);
}
public void test() throws Exception {
CustomPlugin plugin = new CustomPlugin();
PluginRepository.registerPlugin(plugin);
List<Plugin> plugins = new ArrayList<>();
plugins.add(createPlugin(CustomPlugin.NAME));
ImagePluginStack stack = ImagePluginConfiguration.parseConfiguration(new Jlink.PluginsConfiguration(plugins,
null, null));
ResourcePoolManager inResources = new ResourcePoolManager(ByteOrder.nativeOrder(), new CustomStringTable());
inResources.add(ResourcePoolEntry.create("/aaa/bbb/res1.class", new byte[90]));
inResources.add(ResourcePoolEntry.create("/aaa/bbb/res2.class", new byte[90]));
inResources.add(ResourcePoolEntry.create("/aaa/bbb/res3.class", new byte[90]));
inResources.add(ResourcePoolEntry.create("/aaa/ddd/res1.class", new byte[90]));
inResources.add(ResourcePoolEntry.create("/aaa/res1.class", new byte[90]));
ResourcePool outResources = stack.visitResources(inResources);
Collection<String> input = inResources.entries()
.map(Object::toString)
.collect(Collectors.toList());
Collection<String> output = outResources.entries()
.map(Object::toString)
.collect(Collectors.toList());
if (!input.equals(output)) {
throw new AssertionError("Input and output resources differ: input: "
+ input + ", output: " + output);
}
}
private static class CustomStringTable implements StringTable {
private final List<String> strings = new ArrayList<>();
@Override
public int addString(String str) {
strings.add(str);
return strings.size() - 1;
}
@Override
public String getString(int id) {
return strings.get(id);
}
public int size() {
return strings.size();
}
}
private static class CustomPlugin implements Plugin, ResourcePrevisitor {
private static String NAME = "plugin";
private boolean isPrevisitCalled = false;
@Override
public ResourcePool transform(ResourcePool inResources, ResourcePoolBuilder outResources) {
if (!isPrevisitCalled) {
throw new AssertionError("Previsit was not called");
}
CustomStringTable table = (CustomStringTable)((ResourcePoolImpl)inResources).getStringTable();
if (table.size() == 0) {
throw new AssertionError("Table is empty");
}
Map<String, Integer> count = new HashMap<>();
for (int i = 0; i < table.size(); ++i) {
String s = table.getString(i);
Optional<ResourcePoolEntry> e = inResources.findEntry(s);
if (e.isPresent()) {
throw new AssertionError();
}
count.compute(s, (k, c) -> 1 + (c == null ? 0 : c));
}
count.forEach((k, v) -> {
if (v != 1) {
throw new AssertionError("Expected one entry in the table, got: " + v + " for " + k);
}
});
inResources.entries().forEach(r -> {
outResources.add(r);
});
return outResources.build();
}
@Override
public String getName() {
return NAME;
}
@Override
public void previsit(ResourcePool resources, StringTable strings) {
isPrevisitCalled = true;
resources.entries().forEach(r -> {
String s = r.path();
int lastIndexOf = s.lastIndexOf('/');
if (lastIndexOf >= 0) {
strings.addString(s.substring(0, lastIndexOf));
}
});
}
}
}
|
