/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.client.proxy;
import com.hazelcast.client.impl.client.ClientRequest;
import com.hazelcast.client.spi.ClientProxy;
import com.hazelcast.concurrent.lock.client.GetLockCountRequest;
import com.hazelcast.concurrent.lock.client.GetRemainingLeaseRequest;
import com.hazelcast.concurrent.lock.client.IsLockedRequest;
import com.hazelcast.concurrent.lock.client.LockRequest;
import com.hazelcast.concurrent.lock.client.UnlockRequest;
import com.hazelcast.core.ICondition;
import com.hazelcast.core.ILock;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.util.ThreadUtil;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Condition;
import static com.hazelcast.util.ValidationUtil.shouldBePositive;
public class ClientLockProxy extends ClientProxy implements ILock {
private volatile Data key;
public ClientLockProxy(String serviceName, String objectId) {
super(serviceName, objectId);
}
@Deprecated
public Object getKey() {
return getName();
}
public boolean isLocked() {
IsLockedRequest request = new IsLockedRequest(getKeyData());
Boolean result = invoke(request);
return result;
}
public boolean isLockedByCurrentThread() {
IsLockedRequest request = new IsLockedRequest(getKeyData(), ThreadUtil.getThreadId());
Boolean result = invoke(request);
return result;
}
public int getLockCount() {
GetLockCountRequest request = new GetLockCountRequest(getKeyData());
return (Integer) invoke(request);
}
public long getRemainingLeaseTime() {
GetRemainingLeaseRequest request = new GetRemainingLeaseRequest(getKeyData());
return (Long) invoke(request);
}
public void lock(long leaseTime, TimeUnit timeUnit) {
shouldBePositive(leaseTime, "leaseTime");
LockRequest request = new LockRequest(getKeyData(), ThreadUtil.getThreadId(), getTimeInMillis(leaseTime, timeUnit), -1);
invoke(request);
}
public void forceUnlock() {
UnlockRequest request = new UnlockRequest(getKeyData(), ThreadUtil.getThreadId(), true);
invoke(request);
}
public ICondition newCondition(String name) {
return new ClientConditionProxy(this, name, getContext());
}
public void lock() {
lock(Long.MAX_VALUE, null);
}
public void lockInterruptibly() throws InterruptedException {
LockRequest request = new LockRequest(getKeyData(), ThreadUtil.getThreadId(), Long.MAX_VALUE, -1);
invokeInterruptibly(request, getKeyData());
}
public boolean tryLock() {
try {
return tryLock(0, null);
} catch (InterruptedException e) {
return false;
}
}
public boolean tryLock(long time, TimeUnit unit) throws InterruptedException {
LockRequest request = new LockRequest(getKeyData(),
ThreadUtil.getThreadId(), Long.MAX_VALUE, getTimeInMillis(time, unit));
Boolean result = invoke(request);
return result;
}
public void unlock() {
UnlockRequest request = new UnlockRequest(getKeyData(), ThreadUtil.getThreadId());
invoke(request);
}
public Condition newCondition() {
throw new UnsupportedOperationException();
}
private Data getKeyData() {
if (key == null) {
key = toData(getName());
}
return key;
}
private long getTimeInMillis(final long time, final TimeUnit timeunit) {
return timeunit != null ? timeunit.toMillis(time) : time;
}
protected <T> T invoke(ClientRequest req) {
return super.invoke(req, getKeyData());
}
@Override
public String toString() {
return "ILock{" + "name='" + getName() + '\'' + '}';
}
}