com.griddynamics.jagger.engine.e1.process.Services.java Source code

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Here is the source code for com.griddynamics.jagger.engine.e1.process.Services.java

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/*
 * Copyright (c) 2010-2012 Grid Dynamics Consulting Services, Inc, All Rights Reserved
 * http://www.griddynamics.com
 *
 * This library is free software; you can redistribute it and/or modify it under the terms of
 * the GNU Lesser General Public License as published by the Free Software Foundation; either
 * version 2.1 of the License, or any later version.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.griddynamics.jagger.engine.e1.process;

import com.google.common.util.concurrent.Service;
import com.google.common.util.concurrent.Service.State;
import com.griddynamics.jagger.util.TimeUtils;

import java.util.concurrent.TimeoutException;

public class Services {
    private Services() {

    }

    public static void awaitTermination(Service service, long timeout) {
        long begin = System.currentTimeMillis();
        while (true) {
            State state = service.state();

            if (state == State.TERMINATED) {
                break;
            }

            if (state == State.FAILED) {
                throw new IllegalStateException("Service '" + service + "' execution unexpectedly failed");
            }

            TimeUtils.sleepMillis(500);
            long now = System.currentTimeMillis();

            long diff = now - begin;
            if (diff > timeout) {
                throw new RuntimeException(
                        String.format("Waiting for service %s is failed. Timeout %d", service, diff));
            }
        }
    }
}