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com.hazelcast.client.proxy.ClientLockProxy Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2015, 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.protocol.ClientMessage;
import com.hazelcast.client.impl.protocol.codec.LockForceUnlockCodec;
import com.hazelcast.client.impl.protocol.codec.LockGetLockCountCodec;
import com.hazelcast.client.impl.protocol.codec.LockGetRemainingLeaseTimeCodec;
import com.hazelcast.client.impl.protocol.codec.LockIsLockedByCurrentThreadCodec;
import com.hazelcast.client.impl.protocol.codec.LockIsLockedCodec;
import com.hazelcast.client.impl.protocol.codec.LockLockCodec;
import com.hazelcast.client.impl.protocol.codec.LockTryLockCodec;
import com.hazelcast.client.impl.protocol.codec.LockUnlockCodec;
import com.hazelcast.client.spi.ClientProxy;
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.Preconditions.checkPositive;
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() {
ClientMessage request = LockIsLockedCodec.encodeRequest(getName());
LockIsLockedCodec.ResponseParameters resultParameters =
LockIsLockedCodec.decodeResponse((ClientMessage) invoke(request));
return resultParameters.response;
}
public boolean isLockedByCurrentThread() {
ClientMessage request = LockIsLockedByCurrentThreadCodec.encodeRequest(getName(), ThreadUtil.getThreadId());
LockIsLockedByCurrentThreadCodec.ResponseParameters resultParameters =
LockIsLockedByCurrentThreadCodec.decodeResponse((ClientMessage) invoke(request));
return resultParameters.response;
}
public int getLockCount() {
ClientMessage request = LockGetLockCountCodec.encodeRequest(getName());
LockGetLockCountCodec.ResponseParameters resultParameters
= LockGetLockCountCodec.decodeResponse((ClientMessage) invoke(request));
return resultParameters.response;
}
public long getRemainingLeaseTime() {
ClientMessage request = LockGetRemainingLeaseTimeCodec.encodeRequest(getName());
LockGetRemainingLeaseTimeCodec.ResponseParameters resultParameters =
LockGetRemainingLeaseTimeCodec.decodeResponse((ClientMessage) invoke(request));
return resultParameters.response;
}
public void lock(long leaseTime, TimeUnit timeUnit) {
checkPositive(leaseTime, "leaseTime should be positive");
ClientMessage request = LockLockCodec.encodeRequest(getName(),
getTimeInMillis(leaseTime, timeUnit), ThreadUtil.getThreadId());
invoke(request);
}
public void forceUnlock() {
ClientMessage request = LockForceUnlockCodec.encodeRequest(getName());
invoke(request);
}
public ICondition newCondition(String name) {
return new ClientConditionProxy(this, name, getContext());
}
public void lock() {
ClientMessage request = LockLockCodec.encodeRequest(getName(), -1, ThreadUtil.getThreadId());
invoke(request);
}
public void lockInterruptibly() throws InterruptedException {
ClientMessage request = LockLockCodec.encodeRequest(getName(), -1, ThreadUtil.getThreadId());
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 {
ClientMessage request =
LockTryLockCodec.encodeRequest(getName(), ThreadUtil.getThreadId(), getTimeInMillis(time, unit));
LockTryLockCodec.ResponseParameters resultParameters =
LockTryLockCodec.decodeResponse((ClientMessage) invoke(request));
return resultParameters.response;
}
public void unlock() {
ClientMessage request = LockUnlockCodec.encodeRequest(getName(), 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 invoke(ClientMessage req) {
return super.invoke(req, getKeyData());
}
@Override
public String toString() {
return "ILock{" + "name='" + getName() + '\'' + '}';
}
}