/**
* 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.camel.util;
import java.util.Collection;
import org.apache.camel.Service;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* A collection of helper methods for working with {@link Service} objects
*
* @version $Revision: 640438 $
*/
public final class ServiceHelper {
private static final transient Log LOG = LogFactory.getLog(ServiceHelper.class);
/**
* Utility classes should not have a public constructor.
*/
private ServiceHelper() {
}
public static void startService(Object value) throws Exception {
if (value instanceof Service) {
Service service = (Service)value;
service.start();
} else if (value instanceof Collection) {
startServices((Collection)value);
}
}
/**
* Starts all of the given services
*/
public static void startServices(Object... services) throws Exception {
for (Object value : services) {
startService(value);
}
}
/**
* Starts all of the given services
*/
public static void startServices(Collection services) throws Exception {
for (Object value : services) {
if (value instanceof Service) {
Service service = (Service)value;
service.start();
}
}
}
/**
* Stops all of the given services, throwing the first exception caught
*/
public static void stopServices(Object... services) throws Exception {
Exception firstException = null;
for (Object value : services) {
if (value instanceof Service) {
Service service = (Service)value;
try {
service.stop();
} catch (Exception e) {
LOG.debug("Caught exception shutting down: " + e, e);
if (firstException == null) {
firstException = e;
}
}
}
}
if (firstException != null) {
throw firstException;
}
}
public static void stopService(Object value) throws Exception {
if (value instanceof Service) {
Service service = (Service)value;
service.stop();
} else if (value instanceof Collection) {
stopServices((Collection)value);
}
}
/**
* Stops all of the given services, throwing the first exception caught
*/
public static void stopServices(Collection services) throws Exception {
Exception firstException = null;
for (Object value : services) {
if (value instanceof Service) {
Service service = (Service)value;
try {
service.stop();
} catch (Exception e) {
LOG.debug("Caught exception shutting down: " + e, e);
if (firstException == null) {
firstException = e;
}
}
}
}
if (firstException != null) {
throw firstException;
}
}
}