/*
* 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.synapse.commons.executors.config;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMFactory;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMNamespace;
import org.apache.synapse.commons.executors.*;
import javax.xml.namespace.QName;
import java.util.List;
public class PriorityExecutorSerializer {
public static OMElement serialize(OMElement parent,
PriorityExecutor executor, String namespace) {
OMFactory fac = OMAbstractFactory.getOMFactory();
OMNamespace nullNS = fac.createOMNamespace("", "");
OMElement executorElement = createElement(ExecutorConstants.PRIORITY_EXECUTOR, namespace);
if (executor.getName() != null) {
executorElement.addAttribute(fac.createOMAttribute(ExecutorConstants.NAME,
nullNS, executor.getName()));
}
if (executor.getBeforeExecuteHandler() != null) {
executorElement.addAttribute(fac.createOMAttribute(
ExecutorConstants.BEFORE_EXECUTE_HANDLER, nullNS,
executor.getBeforeExecuteHandler().getClass().getName()));
}
// create the queues configuration
MultiPriorityBlockingQueue queue = executor.getQueue();
NextQueueAlgorithm algo = queue.getNextQueueAlgorithm();
OMElement queuesEle = createElement(ExecutorConstants.QUEUES, namespace);
if (!(algo instanceof PRRNextQueueAlgorithm)) {
queuesEle.addAttribute(fac.createOMAttribute(ExecutorConstants.NEXT_QUEUE, nullNS,
algo.getClass().getName()));
}
if (!queue.isFixedSizeQueues()) {
queuesEle.addAttribute(fac.createOMAttribute(ExecutorConstants.IS_FIXED_SIZE,
nullNS, Boolean.toString(false)));
}
List<InternalQueue> intQueues = queue.getQueues();
for (InternalQueue intQueue : intQueues) {
OMElement queueEle = createElement(ExecutorConstants.QUEUE, namespace);
if (queue.isFixedSizeQueues()) {
queueEle.addAttribute(fac.createOMAttribute(ExecutorConstants.SIZE, nullNS,
Integer.toString(intQueue.getCapacity())));
}
queueEle.addAttribute(fac.createOMAttribute(ExecutorConstants.PRIORITY, nullNS,
Integer.toString(intQueue.getPriority())));
queuesEle.addChild(queueEle);
}
executorElement.addChild(queuesEle);
// create the Threads configuration
OMElement threadsEle = createElement(ExecutorConstants.THREADS, namespace);
threadsEle.addAttribute(fac.createOMAttribute(
ExecutorConstants.MAX, nullNS, Integer.toString(executor.getMax())));
threadsEle.addAttribute(fac.createOMAttribute(
ExecutorConstants.CORE, nullNS, Integer.toString(executor.getCore())));
threadsEle.addAttribute(fac.createOMAttribute(
ExecutorConstants.KEEP_ALIVE, nullNS, Integer.toString(executor.getKeepAlive())));
executorElement.addChild(threadsEle);
if (parent != null) {
parent.addChild(executorElement);
}
return executorElement;
}
/**
* Create an OMElement with the given name.
* @param name name of the element
* @param namespace if null element won't have a namespace
* @return created OMElement
*/
private static OMElement createElement(String name, String namespace) {
OMFactory fac = OMAbstractFactory.getOMFactory();
if (namespace == null) {
return fac.createOMElement(new QName(name));
}
OMNamespace omNamespace = fac.createOMNamespace(namespace, "");
return fac.createOMElement(name, omNamespace);
}
}