org.jppf.management.forwarding.AbstractForwardingTask Maven / Gradle / Ivy
/*
* JPPF.
* Copyright (C) 2005-2019 JPPF Team.
* http://www.jppf.org
*
* Licensed 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.jppf.management.forwarding;
import org.jppf.utils.InvocationResult;
/**
* Common super class for all forwarding tasks.
* @param the type of result.
*/
abstract class AbstractForwardingTask implements Runnable {
/**
* Represents the node to which a request is sent.
*/
final String uuid;
/**
* The result.
*/
InvocationResult result;
/**
*
*/
final ForwardCallback callback;
/**
* Initialize this task.
* @param uuid represents the node to which a request is sent.
* @param callback .
*/
AbstractForwardingTask(final String uuid, final ForwardCallback callback) {
this.uuid = uuid;
this.callback = callback;
}
@SuppressWarnings("unchecked")
@Override
public void run() {
try {
result = new InvocationResult<>(execute());
} catch (final Exception e) {
result = new InvocationResult<>(e);
} finally {
callback.gotResult(uuid, result);
}
}
/**
* Perform a JMX operation.
* @return the result of the JMX invocation.
* @throws Exception if any error occurs.
*/
abstract E execute() throws Exception;
}