Services.java

/**
 * 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.atlas.service;

import com.google.inject.Inject;
import com.google.inject.Singleton;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Set;

/**
 * Utility for starting and stopping all services.
 */
@Singleton
public class Services {
    public static final Logger LOG = LoggerFactory.getLogger(Services.class);

    private final Set<Service> services;

    @Inject
    public Services(Set<Service> services) {
        this.services = services;
    }

    public void start() {
        try {
            for (Service service : services) {
                LOG.info("Starting service {}", service.getClass().getName());
                service.start();
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public void stop() {
        for (Service service : services) {
            LOG.info("Stopping service {}", service.getClass().getName());
            try {
                service.stop();
            } catch (Throwable e) {
                LOG.warn("Error stopping service {}", service.getClass().getName(), e);
            }
        }
    }
}