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OperationManagerImpl.java
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OperationManagerImpl.java
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/*
* Copyright (c) 2015, 2024 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.hk2.extras.operation.internal;
import java.lang.annotation.Annotation;
import java.util.Collections;
import java.util.HashMap;
import java.util.Set;
import java.util.concurrent.locks.ReentrantLock;
import jakarta.inject.Inject;
import jakarta.inject.Singleton;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.extras.operation.OperationHandle;
import org.glassfish.hk2.extras.operation.OperationManager;
/**
* @author jwells
*
*/
@Singleton
public class OperationManagerImpl implements OperationManager {
private final ReentrantLock lock = new ReentrantLock();
private final HashMap<Class<? extends Annotation>, SingleOperationManager<?>> children =
new HashMap<Class<? extends Annotation>, SingleOperationManager<?>>();
@Inject
private ServiceLocator locator;
/* (non-Javadoc)
* @see org.glassfish.hk2.extras.operation.OperationManager#createOperation()
*/
@SuppressWarnings("unchecked")
@Override
public <T extends Annotation> OperationHandle<T> createOperation(T scope) {
SingleOperationManager<T> manager;
lock.lock();
try {
manager = (SingleOperationManager<T>) children.get(scope.annotationType());
if (manager == null) {
manager = new SingleOperationManager<T>(scope, locator);
children.put(scope.annotationType(), manager);
}
} finally {
lock.unlock();
}
return manager.createOperation();
}
/* (non-Javadoc)
* @see org.glassfish.hk2.extras.operation.OperationManager#createAndStartOperation()
*/
@Override
public <T extends Annotation> OperationHandle<T> createAndStartOperation(T scope) {
OperationHandle<T> retVal = createOperation(scope);
retVal.resume();
return retVal;
}
/* (non-Javadoc)
* @see org.glassfish.hk2.extras.operation.OperationManager#getCurrentOperations()
*/
@SuppressWarnings("unchecked")
@Override
public <T extends Annotation> Set<OperationHandle<T>> getCurrentOperations(T scope) {
SingleOperationManager<T> manager;
lock.lock();
try {
manager = (SingleOperationManager<T>) children.get(scope.annotationType());
if (manager == null) return Collections.emptySet();
} finally {
lock.unlock();
}
return manager.getAllOperations();
}
/* (non-Javadoc)
* @see org.glassfish.hk2.extras.operation.OperationManager#getCurrentOperation(java.lang.annotation.Annotation)
*/
@SuppressWarnings("unchecked")
@Override
public <T extends Annotation> OperationHandle<T> getCurrentOperation(T scope) {
SingleOperationManager<T> manager;
lock.lock();
try {
manager = (SingleOperationManager<T>) children.get(scope.annotationType());
if (manager == null) return null;
} finally {
lock.unlock();
}
return manager.getCurrentOperationOnThisThread();
}
/* (non-Javadoc)
* @see org.glassfish.hk2.extras.operation.OperationManager#shutdownAllOperations()
*/
@Override
public void shutdownAllOperations(Annotation scope) {
SingleOperationManager<?> manager;
lock.lock();
try {
manager = children.remove(scope.annotationType());
if (manager == null) return;
manager.shutdown();
} finally {
lock.unlock();
}
}
}