/*
* Copyright 2011 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.cache.internal;
import org.gradle.cache.CacheOpenException;
import org.gradle.cache.PersistentIndexedCache;
import org.gradle.cache.PersistentIndexedCacheParameters;
import org.gradle.cache.internal.filelock.LockOptions;
import org.gradle.internal.Factory;
import org.gradle.messaging.serialize.Serializer;
import org.gradle.util.GFileUtils;
import java.io.File;
public class DefaultPersistentDirectoryStore implements ReferencablePersistentCache {
private final File dir;
private final LockOptions lockOptions;
private final FileLockManager lockManager;
private final String displayName;
private CacheCoordinator cacheAccess;
public DefaultPersistentDirectoryStore(File dir, String displayName, LockOptions lockOptions, FileLockManager fileLockManager) {
this.dir = dir;
this.lockOptions = lockOptions;
this.lockManager = fileLockManager;
this.displayName = displayName != null ? String.format("%s (%s)", displayName, dir) : String.format("cache directory %s (%s)", dir.getName(), dir);
}
public DefaultPersistentDirectoryStore open() {
GFileUtils.mkdirs(dir);
cacheAccess = createCacheAccess();
try {
cacheAccess.open(lockOptions);
} catch (Throwable e) {
throw new CacheOpenException(String.format("Could not open %s.", this), e);
}
return this;
}
private CacheCoordinator createCacheAccess() {
return new DefaultCacheAccess(displayName, getLockTarget(), dir, lockManager, getInitAction());
}
protected File getLockTarget() {
return dir;
}
protected CacheInitializationAction getInitAction() {
return new CacheInitializationAction() {
public boolean requiresInitialization(FileLock fileLock) {
return false;
}
public void initialize(FileLock fileLock) {
throw new UnsupportedOperationException();
}
};
}
public void close() {
if (cacheAccess != null) {
try {
cacheAccess.close();
} finally {
cacheAccess = null;
}
}
}
public File getBaseDir() {
return dir;
}
@Override
public String toString() {
return displayName;
}
public <K, V> PersistentIndexedCache<K, V> createCache(PersistentIndexedCacheParameters<K, V> parameters) {
return cacheAccess.newCache(parameters);
}
public <K, V> PersistentIndexedCache<K, V> createCache(String name, Class<K> keyType, Serializer<V> valueSerializer) {
return cacheAccess.newCache(new PersistentIndexedCacheParameters<K, V>(name, keyType, valueSerializer));
}
public <T> T useCache(String operationDisplayName, Factory<? extends T> action) {
return cacheAccess.useCache(operationDisplayName, action);
}
public void useCache(String operationDisplayName, Runnable action) {
cacheAccess.useCache(operationDisplayName, action);
}
public <T> T longRunningOperation(String operationDisplayName, Factory<? extends T> action) {
return cacheAccess.longRunningOperation(operationDisplayName, action);
}
public void longRunningOperation(String operationDisplayName, Runnable action) {
cacheAccess.longRunningOperation(operationDisplayName, action);
}
}