/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.kylin.job;

import org.apache.kylin.job.exception.ExecuteException;
import org.apache.kylin.job.execution.ExecutableContext;
import org.apache.kylin.job.execution.ExecuteResult;

/**
 */
public class SelfStopExecutable extends BaseTestExecutable {

    volatile boolean doingWork;

    public SelfStopExecutable() {
        super();
    }

    @Override
    protected ExecuteResult doWork(ExecutableContext context) throws ExecuteException {
        doingWork = true;
        try {
            for (int i = 0; i < 60; i++) {
                sleepOneSecond();
                
                if (isDiscarded())
                    return new ExecuteResult(ExecuteResult.State.STOPPED, "stopped");
            }
                
            return new ExecuteResult();
        } finally {
            doingWork = false;
        }
    }

    private void sleepOneSecond() {
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
    }

    public void waitForDoWork() {
        while (doingWork) {
            sleepOneSecond();
        }
    }
}
