/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.ivy.plugins.lock;
import java.io.File;
import java.text.ParseException;
import org.apache.ivy.core.cache.DefaultRepositoryCacheManager;
import org.apache.ivy.core.cache.RepositoryCacheManager;
import org.apache.ivy.core.event.EventManager;
import org.apache.ivy.core.module.descriptor.DefaultDependencyDescriptor;
import org.apache.ivy.core.module.id.ModuleRevisionId;
import org.apache.ivy.core.resolve.ResolveData;
import org.apache.ivy.core.resolve.ResolveEngine;
import org.apache.ivy.core.resolve.ResolveOptions;
import org.apache.ivy.core.resolve.ResolvedModuleRevision;
import org.apache.ivy.core.settings.IvySettings;
import org.apache.ivy.core.sort.SortEngine;
import org.apache.ivy.plugins.repository.RepositoryCopyProgressListener;
import org.apache.ivy.plugins.repository.file.FileRepository;
import org.apache.ivy.plugins.resolver.FileSystemResolver;
import org.apache.ivy.util.CopyProgressEvent;
import org.apache.ivy.util.FileUtil;
import org.apache.ivy.util.Message;
import junit.framework.TestCase;
public class ArtifactLockStrategyTest extends TestCase {
protected void setUp() throws Exception {
FileUtil.forceDelete(new File("build/test/cache"));
}
protected void tearDown() throws Exception {
FileUtil.forceDelete(new File("build/test/cache"));
}
public void testConcurrentResolve() throws Exception {
// we use different settings because Ivy do not support multi thread resolve with the same
// settings yet and this is not what this test is about: the focus of this test is running
// concurrent resolves in separate vms but using the same cache. We don't span the test on
// multiple vms, but using separate settings we should only run into shared cache related
// issues, and not multi thread related issues.
IvySettings settings1 = new IvySettings();
IvySettings settings2 = new IvySettings();
IvySettings settings3 = new IvySettings();
// run 3 concurrent resolves, one taking 100ms to download files, one 20ms and one 5ms
// the first one do 10 resolves, the second one 20 and the third 50
// note that the download time is useful only at the very beginning, then the cached file is
// used
ResolveThread t1 = asyncResolve(settings1, createSlowResolver(settings1, 100),
"org6#mod6.4;3", 10);
ResolveThread t2 = asyncResolve(settings2, createSlowResolver(settings2, 20),
"org6#mod6.4;3", 20);
ResolveThread t3 = asyncResolve(settings3, createSlowResolver(settings3, 5),
"org6#mod6.4;3", 50);
t1.join(100000);
t2.join(20000);
t3.join(20000);
assertEquals(10, t1.getCount());
assertFound("org6#mod6.4;3", t1.getFinalResult());
assertEquals(20, t2.getCount());
assertFound("org6#mod6.4;3", t2.getFinalResult());
assertEquals(50, t3.getCount());
assertFound("org6#mod6.4;3", t3.getFinalResult());
}
private RepositoryCacheManager newCacheManager(IvySettings settings) {
DefaultRepositoryCacheManager cacheManager = new DefaultRepositoryCacheManager("cache",
settings, new File("build/test/cache"));
cacheManager.setLockStrategy(new CreateFileLockStrategy(false));
return cacheManager;
}
private FileSystemResolver createSlowResolver(IvySettings settings, final int sleep) {
FileSystemResolver resolver = new FileSystemResolver();
resolver.setRepositoryCacheManager(newCacheManager(settings));
resolver.setRepository(new FileRepository() {
private RepositoryCopyProgressListener progress = new RepositoryCopyProgressListener(
this) {
public void progress(CopyProgressEvent evt) {
super.progress(evt);
sleepSilently(sleep); // makes the file copy longer to test concurrency issues
}
};
protected RepositoryCopyProgressListener getProgressListener() {
return progress;
}
});
resolver.setName("test");
resolver.setSettings(settings);
resolver.addIvyPattern(settings.getBaseDir()
+ "/test/repositories/1/[organisation]/[module]/[type]s/[artifact]-[revision].[ext]");
resolver.addArtifactPattern(settings.getBaseDir()
+ "/test/repositories/1/[organisation]/[module]/[type]s/[artifact]-[revision].[ext]");
return resolver;
}
private ResolveThread asyncResolve(IvySettings settings, FileSystemResolver resolver,
String module, int loop) {
ResolveThread thread = new ResolveThread(settings, resolver, module, loop);
thread.start();
return thread;
}
private void assertFound(String module, ResolvedModuleRevision rmr) {
assertNotNull(rmr);
assertEquals(module, rmr.getId().toString());
}
private ResolvedModuleRevision resolveModule(IvySettings settings, FileSystemResolver resolver,
String module) throws ParseException {
return resolver.getDependency(
new DefaultDependencyDescriptor(ModuleRevisionId.parse(module), false),
new ResolveData(new ResolveEngine(settings, new EventManager(),
new SortEngine(settings)), new ResolveOptions()));
}
private void sleepSilently(int timeout) {
try {
Thread.sleep(timeout);
} catch (InterruptedException e) {
}
}
private class ResolveThread extends Thread {
private IvySettings settings;
private FileSystemResolver resolver;
private String module;
private final int loop;
private ResolvedModuleRevision finalResult;
private int count;
public ResolveThread(IvySettings settings, FileSystemResolver resolver, String module,
int loop) {
this.settings = settings;
this.resolver = resolver;
this.module = module;
this.loop = loop;
}
public synchronized ResolvedModuleRevision getFinalResult() {
return finalResult;
}
public synchronized int getCount() {
return count;
}
public void run() {
ResolvedModuleRevision rmr = null;
for (int i = 0; i < loop; i++) {
try {
rmr = resolveModule(settings, resolver, module);
if (rmr == null) {
throw new RuntimeException("module not found: " + module);
}
synchronized (this) {
// Message.info(this.toString() + " count = " + count);
count++;
}
} catch (ParseException e) {
Message.info("parse exception " + e);
} catch (RuntimeException e) {
Message.info("exception " + e);
e.printStackTrace();
throw e;
} catch (Error e) {
Message.info("exception " + e);
e.printStackTrace();
throw e;
}
}
synchronized (this) {
finalResult = rmr;
}
}
}
}