org.apache.slider.server.services.workflow.MockService.java Source code

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Here is the source code for org.apache.slider.server.services.workflow.MockService.java

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/*
 * 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.slider.server.services.workflow;

import org.apache.hadoop.service.AbstractService;
import org.apache.hadoop.service.ServiceStateException;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class MockService extends AbstractService {
    private final boolean fail;
    private final int lifespan;
    private final ExecutorService executorService = Executors.newSingleThreadExecutor();

    MockService() {
        this("mock", false, -1);
    }

    MockService(String name, boolean fail, int lifespan) {
        super(name);
        this.fail = fail;
        this.lifespan = lifespan;
    }

    @Override
    protected void serviceStart() throws Exception {
        //act on the lifespan here
        if (lifespan > 0) {
            executorService.submit(new Runnable() {
                @Override
                public void run() {
                    try {
                        Thread.sleep(lifespan);
                    } catch (InterruptedException ignored) {

                    }
                    finish();
                }
            });
        } else {
            if (lifespan == 0) {
                finish();
            } else {
                //continue until told not to
            }
        }
    }

    void finish() {
        if (fail) {
            ServiceStateException e = new ServiceStateException(getName() + " failed");

            noteFailure(e);
            stop();
            throw e;
        } else {
            stop();
        }
    }

}