/*
* Copyright 2016 the original author or authors.
*
* Licensed 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.gradle.internal.classpath;
import org.gradle.api.Transformer;
import org.gradle.cache.CacheBuilder;
import org.gradle.cache.CacheRepository;
import org.gradle.cache.PersistentCache;
import org.gradle.cache.internal.FileLockManager;
import org.gradle.internal.Factories;
import org.gradle.internal.Factory;
import org.gradle.internal.UncheckedException;
import org.gradle.internal.file.JarCache;
import org.gradle.util.CollectionUtils;
import java.io.Closeable;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import static org.gradle.cache.internal.filelock.LockOptionsBuilder.mode;
public class DefaultCachedClasspathTransformer implements CachedClasspathTransformer, Closeable {
private final PersistentCache cache;
private final Transformer<File, File> jarFileTransformer;
public DefaultCachedClasspathTransformer(CacheRepository cacheRepository, JarCache jarCache, List<CachedJarFileStore> fileStores) {
this.cache = cacheRepository
.cache("jars-3")
.withDisplayName("jars")
.withCrossVersionCache(CacheBuilder.LockTarget.DefaultTarget)
.withLockOptions(mode(FileLockManager.LockMode.None))
.open();
this.jarFileTransformer = new CachedJarFileTransformer(jarCache, cache, fileStores);
}
@Override
public ClassPath transform(ClassPath classPath) {
return DefaultClassPath.of(CollectionUtils.collect(classPath.getAsFiles(), jarFileTransformer));
}
@Override
public Collection<URL> transform(Collection<URL> urls) {
return CollectionUtils.collect(urls, new Transformer<URL, URL>() {
@Override
public URL transform(URL url) {
if (url.getProtocol().equals("file")) {
try {
return jarFileTransformer.transform(new File(url.toURI())).toURI().toURL();
} catch (URISyntaxException e) {
throw UncheckedException.throwAsUncheckedException(e);
} catch (MalformedURLException e) {
throw UncheckedException.throwAsUncheckedException(e);
}
} else {
return url;
}
}
});
}
@Override
public void close() throws IOException {
cache.close();
}
private static class CachedJarFileTransformer implements Transformer<File, File> {
private final JarCache jarCache;
private final PersistentCache cache;
private final List<String> prefixes;
CachedJarFileTransformer(JarCache jarCache, PersistentCache cache, List<CachedJarFileStore> fileStores) {
this.jarCache = jarCache;
this.cache = cache;
prefixes = new ArrayList<String>(fileStores.size() + 1);
prefixes.add(cache.getBaseDir().getAbsolutePath() + File.separator);
for (CachedJarFileStore fileStore : fileStores) {
for (File rootDir : fileStore.getFileStoreRoots()) {
prefixes.add(rootDir.getAbsolutePath() + File.separator);
}
}
}
@Override
public File transform(final File original) {
if (shouldUseFromCache(original)) {
return cache.useCache(new Factory<File>() {
public File create() {
return jarCache.getCachedJar(original, Factories.constant(cache.getBaseDir()));
}
});
} else {
return original;
}
}
private boolean shouldUseFromCache(File original) {
if (!original.isFile()) {
return false;
}
for (String prefix : prefixes) {
if (original.getAbsolutePath().startsWith(prefix)) {
return false;
}
}
return true;
}
}
}