Package com.hazelcast.client.proxy

Source Code of com.hazelcast.client.proxy.ClientCountDownLatchProxy

/*
* 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.countdownlatch.client.AwaitRequest;
import com.hazelcast.concurrent.countdownlatch.client.CountDownRequest;
import com.hazelcast.concurrent.countdownlatch.client.GetCountRequest;
import com.hazelcast.concurrent.countdownlatch.client.SetCountRequest;
import com.hazelcast.core.ICountDownLatch;
import com.hazelcast.nio.serialization.Data;

import java.util.concurrent.TimeUnit;

public class ClientCountDownLatchProxy extends ClientProxy implements ICountDownLatch {

    private volatile Data key;

    public ClientCountDownLatchProxy(String serviceName, String objectId) {
        super(serviceName, objectId);
    }

    public boolean await(long timeout, TimeUnit unit) throws InterruptedException {
        AwaitRequest request = new AwaitRequest(getName(), getTimeInMillis(timeout, unit));
        Boolean result = invoke(request);
        return result;
    }

    public void countDown() {
        CountDownRequest request = new CountDownRequest(getName());
        invoke(request);
    }

    public int getCount() {
        GetCountRequest request = new GetCountRequest(getName());
        Integer result = invoke(request);
        return result;
    }

    public boolean trySetCount(int count) {
        if (count < 0) {
            throw new IllegalArgumentException("count can't be negative");
        }
        SetCountRequest request = new SetCountRequest(getName(), count);
        Boolean result = invoke(request);
        return result;
    }

    private Data getKey() {
        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, getKey());
    }

    @Override
    public String toString() {
        return "ICountDownLatch{" + "name='" + getName() + '\'' + '}';
    }
}
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