1 /*
2 * Copyright (c) 2015, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @summary Test a pool containing jimage resources and classes.
27 * @author Jean-Francois Denise
28 * @modules jdk.jlink/jdk.tools.jlink.internal
29 * @run build ResourcePoolTest
30 * @run main ResourcePoolTest
31 */
32
33 import java.io.ByteArrayInputStream;
34 import java.nio.ByteBuffer;
35 import java.nio.ByteOrder;
36 import java.util.ArrayList;
37 import java.util.Collection;
38 import java.util.HashSet;
39 import java.util.List;
40 import java.util.Optional;
41 import java.util.Set;
42 import java.util.function.Function;
43 import jdk.tools.jlink.internal.ResourcePoolManager;
44 import jdk.tools.jlink.plugin.ResourcePool;
45 import jdk.tools.jlink.plugin.ResourcePoolModule;
46 import jdk.tools.jlink.plugin.ResourcePool;
47 import jdk.tools.jlink.plugin.ResourcePoolEntry;
48
49 public class ResourcePoolTest {
50
51 public static void main(String[] args) throws Exception {
52 new ResourcePoolTest().test();
53 }
54
55 public void test() throws Exception {
56 checkResourceAdding();
57 checkResourceVisitor();
58 checkResourcesAfterCompression();
59 }
60
61 private static final String SUFFIX = "END";
62
63 private void checkResourceVisitor() throws Exception {
64 ResourcePoolManager input = new ResourcePoolManager();
65 for (int i = 0; i < 1000; ++i) {
66 String module = "/module" + (i / 10);
67 String resourcePath = module + "/java/package" + i;
68 byte[] bytes = resourcePath.getBytes();
69 input.add(ResourcePoolEntry.create(resourcePath, bytes));
70 }
71 ResourcePoolManager output = new ResourcePoolManager();
72 ResourceVisitor visitor = new ResourceVisitor();
73 input.resourcePool().transformAndCopy(visitor, output.resourcePoolBuilder());
74 if (visitor.getAmountBefore() == 0) {
75 throw new AssertionError("Resources not found");
76 }
77 if (visitor.getAmountBefore() != input.entryCount()) {
78 throw new AssertionError("Number of visited resources. Expected: " +
79 visitor.getAmountBefore() + ", got: " + input.entryCount());
80 }
81 if (visitor.getAmountAfter() != output.entryCount()) {
82 throw new AssertionError("Number of added resources. Expected: " +
83 visitor.getAmountAfter() + ", got: " + output.entryCount());
84 }
85 output.entries().forEach(outResource -> {
86 String path = outResource.path().replaceAll(SUFFIX + "$", "");
87 if (!input.findEntry(path).isPresent()) {
88 throw new AssertionError("Unknown resource: " + path);
89 }
90 });
91 }
92
93 private static class ResourceVisitor implements Function<ResourcePoolEntry, ResourcePoolEntry> {
94
95 private int amountBefore;
96 private int amountAfter;
97
98 @Override
99 public ResourcePoolEntry apply(ResourcePoolEntry resource) {
100 int index = ++amountBefore % 3;
101 switch (index) {
102 case 0:
103 ++amountAfter;
104 return ResourcePoolEntry.create(resource.path() + SUFFIX,
105 resource.type(), resource.contentBytes());
106 case 1:
107 ++amountAfter;
108 return resource.copyWithContent(resource.contentBytes());
109 }
110 return null;
111 }
112
113 public int getAmountAfter() {
114 return amountAfter;
115 }
116
117 public int getAmountBefore() {
118 return amountBefore;
119 }
120 }
121
122 private void checkResourceAdding() {
123 List<String> samples = new ArrayList<>();
124 samples.add("java.base");
125 samples.add("java/lang/Object");
126 samples.add("java.base");
127 samples.add("java/lang/String");
128 samples.add("java.management");
129 samples.add("javax/management/ObjectName");
130 test(samples, (resources, module, path) -> {
131 try {
132 resources.add(ResourcePoolEntry.create(path, new byte[0]));
133 } catch (Exception ex) {
134 throw new RuntimeException(ex);
135 }
136 });
137 test(samples, (resources, module, path) -> {
138 try {
139 resources.add(ResourcePoolManager.
140 newCompressedResource(ResourcePoolEntry.create(path, new byte[0]),
141 ByteBuffer.allocate(99), "bitcruncher", null,
142 ((ResourcePoolManager)resources).getStringTable(), ByteOrder.nativeOrder()));
143 } catch (Exception ex) {
144 throw new RuntimeException(ex);
145 }
146 });
147 }
148
149 private void test(List<String> samples, ResourceAdder adder) {
150 if (samples.isEmpty()) {
151 throw new AssertionError("No sample to test");
152 }
153 ResourcePoolManager resources = new ResourcePoolManager();
154 Set<String> modules = new HashSet<>();
155 for (int i = 0; i < samples.size(); i++) {
156 String module = samples.get(i);
157 modules.add(module);
158 i++;
159 String clazz = samples.get(i);
160 String path = "/" + module + "/" + clazz + ".class";
161 adder.add(resources, module, path);
162 }
163 for (int i = 0; i < samples.size(); i++) {
164 String module = samples.get(i);
165 i++;
166 String clazz = samples.get(i);
167 String path = "/" + module + "/" + clazz + ".class";
168 Optional<ResourcePoolEntry> res = resources.findEntry(path);
169 if (!res.isPresent()) {
170 throw new AssertionError("Resource not found " + path);
171 }
172 checkModule(resources.resourcePool(), res.get());
173 if (resources.findEntry(clazz).isPresent()) {
174 throw new AssertionError("Resource found " + clazz);
175 }
176 }
177 if (resources.entryCount() != samples.size() / 2) {
178 throw new AssertionError("Invalid number of resources");
179 }
180 }
181
182 private void checkModule(ResourcePool resources, ResourcePoolEntry res) {
183 Optional<ResourcePoolModule> optMod = resources.moduleView().findModule(res.moduleName());
184 if (!optMod.isPresent()) {
185 throw new AssertionError("No module " + res.moduleName());
186 }
187 ResourcePoolModule m = optMod.get();
188 if (!m.name().equals(res.moduleName())) {
189 throw new AssertionError("Not right module name " + res.moduleName());
190 }
191 if (!m.findEntry(res.path()).isPresent()) {
192 throw new AssertionError("resource " + res.path()
193 + " not in module " + m.name());
194 }
195 }
196
197 private void checkResourcesAfterCompression() throws Exception {
198 ResourcePoolManager resources1 = new ResourcePoolManager();
199 ResourcePoolEntry res1 = ResourcePoolEntry.create("/module1/toto1", new byte[0]);
200 ResourcePoolEntry res2 = ResourcePoolEntry.create("/module2/toto1", new byte[0]);
201 resources1.add(res1);
202 resources1.add(res2);
203
204 checkResources(resources1, res1, res2);
205 ResourcePoolManager resources2 = new ResourcePoolManager();
206 ResourcePoolEntry res3 = ResourcePoolEntry.create("/module2/toto1", new byte[7]);
207 resources2.add(res3);
208 resources2.add(ResourcePoolManager.newCompressedResource(res1,
209 ByteBuffer.allocate(7), "zip", null, resources1.getStringTable(),
210 ByteOrder.nativeOrder()));
211 checkResources(resources2, res1, res2);
212 }
213
214 private void checkResources(ResourcePoolManager resources, ResourcePoolEntry... expected) {
215 List<String> modules = new ArrayList();
216 resources.modules().forEach(m -> {
217 modules.add(m.name());
218 });
219 for (ResourcePoolEntry res : expected) {
220 if (!resources.contains(res)) {
221 throw new AssertionError("Resource not found: " + res);
222 }
223
224 if (!resources.findEntry(res.path()).isPresent()) {
225 throw new AssertionError("Resource not found: " + res);
226 }
227
228 if (!modules.contains(res.moduleName())) {
229 throw new AssertionError("Module not found: " + res.moduleName());
230 }
231
232 if (!resources.contains(res)) {
233 throw new AssertionError("Resources not found: " + res);
234 }
235
236 try {
237 resources.add(res);
238 throw new AssertionError(res + " already present, but an exception is not thrown");
239 } catch (Exception ex) {
240 // Expected
241 }
242 }
243
244 try {
245 resources.add(ResourcePoolEntry.create("/module2/toto1", new byte[0]));
246 throw new AssertionError("ResourcePool is read-only, but an exception is not thrown");
247 } catch (Exception ex) {
248 // Expected
249 }
250 }
251
252 interface ResourceAdder {
253 void add(ResourcePoolManager resources, String module, String path);
254 }
255 }