/*
* Copyright 2004,2005 The Apache Software Foundation.
*
* 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.apache.synapse.config.xml.endpoints;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.synapse.SynapseConstants;
import org.apache.synapse.config.xml.XMLConfigConstants;
import org.apache.synapse.core.LoadBalanceMembershipHandler;
import org.apache.synapse.endpoints.DynamicLoadbalanceEndpoint;
import org.apache.synapse.endpoints.Endpoint;
import org.apache.synapse.endpoints.dispatch.Dispatcher;
import org.apache.synapse.endpoints.dispatch.SoapSessionDispatcher;
import org.apache.synapse.endpoints.dispatch.HttpSessionDispatcher;
import org.apache.synapse.endpoints.dispatch.SimpleClientSessionDispatcher;
import java.util.Properties;
/**
* Creates {@link org.apache.synapse.endpoints.DynamicLoadbalanceEndpoint} using an XML configuration.
*
* <pre>
* <endpoint>
* <dynamicLoadbalance [failover="true|false"] [policy="load balance algorithm"]>
* <membershipHandler
* class="HandlerClass">
* <property name="some name" value="some domain"/>+
* </membershipHandler>
* </dynamicLoadbalance>
* </endpoint>
* </pre>
*/
public class DynamicLoadbalanceEndpointSerializer extends EndpointSerializer {
protected OMElement serializeEndpoint(Endpoint endpoint) {
if (!(endpoint instanceof DynamicLoadbalanceEndpoint)) {
handleException("Invalid endpoint type.");
}
fac = OMAbstractFactory.getOMFactory();
OMElement endpointElement
= fac.createOMElement("endpoint", SynapseConstants.SYNAPSE_OMNAMESPACE);
DynamicLoadbalanceEndpoint dynamicLoadbalanceEndpoint = (DynamicLoadbalanceEndpoint) endpoint;
// serialize the parameters
serializeProperties(dynamicLoadbalanceEndpoint, endpointElement);
serializeCommonAttributes(endpoint,endpointElement);
Dispatcher dispatcher = dynamicLoadbalanceEndpoint.getDispatcher();
if (dispatcher != null) {
OMElement sessionElement = fac.createOMElement("session", SynapseConstants.SYNAPSE_OMNAMESPACE);
if (dispatcher instanceof SoapSessionDispatcher) {
sessionElement.addAttribute("type", "soap", null);
} else if (dispatcher instanceof HttpSessionDispatcher) {
sessionElement.addAttribute("type", "http", null);
} else if (dispatcher instanceof SimpleClientSessionDispatcher) {
sessionElement.addAttribute("type", "simpleClientSession", null);
} else {
handleException("invalid session dispatcher : " + dispatcher.getClass().getName());
}
long sessionTimeout = dynamicLoadbalanceEndpoint.getSessionTimeout();
if (sessionTimeout != -1) {
OMElement sessionTimeoutElement = fac.createOMElement("sessionTimeout",
SynapseConstants.SYNAPSE_OMNAMESPACE);
sessionTimeoutElement.setText(String.valueOf(sessionTimeout));
sessionElement.addChild(sessionTimeoutElement);
}
endpointElement.addChild(sessionElement);
}
OMElement dynamicLoadbalanceElement
= fac.createOMElement("dynamicLoadbalance", SynapseConstants.SYNAPSE_OMNAMESPACE);
endpointElement.addChild(dynamicLoadbalanceElement);
// set if failover is turned off in the endpoint
if (!dynamicLoadbalanceEndpoint.isFailover()) {
dynamicLoadbalanceElement.addAttribute("failover", "false", null);
}
LoadBalanceMembershipHandler loadBalanceMembershipHandler = dynamicLoadbalanceEndpoint.getLbMembershipHandler();
dynamicLoadbalanceElement.addAttribute(XMLConfigConstants.LOADBALANCE_ALGORITHM,
loadBalanceMembershipHandler.getLoadbalanceAlgorithm().getClass().getName(),
null);
OMElement membershipHandlerElement =
fac.createOMElement("membershipHandler", SynapseConstants.SYNAPSE_OMNAMESPACE);
dynamicLoadbalanceElement.addChild(membershipHandlerElement);
membershipHandlerElement.addAttribute("class",loadBalanceMembershipHandler.getClass().getName(),null);
Properties membershipHandlerProperties = loadBalanceMembershipHandler.getProperties();
OMElement propertyElement;
for (Object property : membershipHandlerProperties.keySet()){
propertyElement = fac.createOMElement("property", SynapseConstants.SYNAPSE_OMNAMESPACE);
membershipHandlerElement.addChild(propertyElement);
propertyElement.addAttribute("name", property.toString(), null);
propertyElement.addAttribute("value", membershipHandlerProperties.getProperty((String)property), null);
}
return endpointElement;
}
}