hazelcast-master/hazelcast/src/main/java/com/hazelcast/console/SimulateLoadTask.java
/*
 * Copyright (c) 2008-2023, 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.console;

import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.HazelcastInstanceAware;
import com.hazelcast.internal.serialization.BinaryInterface;

import java.io.Serializable;
import java.util.concurrent.Callable;

import static java.lang.Thread.currentThread;

/**
 * A simulated load test.
 */
@BinaryInterface
public final class SimulateLoadTask implements Callable, Serializable, HazelcastInstanceAware {

    private static final long serialVersionUID = 1;
    private static final long ONE_THOUSAND = 1000L;

    private final int delay;
    private final int taskId;
    private final String latchId;
    private transient HazelcastInstance hz;

    public SimulateLoadTask(int delay, int taskId, String latchId) {
        this.delay = delay;
        this.taskId = taskId;
        this.latchId = latchId;
    }

    @Override
    public void setHazelcastInstance(HazelcastInstance hazelcastInstance) {
        this.hz = hazelcastInstance;
    }

    @Override
    public Object call() throws Exception {
        try {
            Thread.sleep(delay * ONE_THOUSAND);
        } catch (InterruptedException e) {
            currentThread().interrupt();
            throw new RuntimeException(e);
        }

        hz.getCPSubsystem().getCountDownLatch(latchId).countDown();
        System.out.println("Finished task: " + taskId);
        return null;
    }
}
