/*
* 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.endpoints.Endpoint;
import org.apache.synapse.endpoints.ServiceDynamicLoadbalanceEndpoint;
import org.apache.synapse.endpoints.dispatch.Dispatcher;
import org.apache.synapse.endpoints.dispatch.HttpSessionDispatcher;
import org.apache.synapse.endpoints.dispatch.SimpleClientSessionDispatcher;
import org.apache.synapse.endpoints.dispatch.SoapSessionDispatcher;
import java.util.Map;
/**
* Creates {@link org.apache.synapse.endpoints.DynamicLoadbalanceEndpoint} using an XML configuration.
* <p/>
* <pre>
* <endpoint name="sdLB">
* <serviceDynamicLoadbalance algorithm="org.apache.synapse.endpoints.algorithms.RoundRobin">
* <services>
* <service>
* <host>as.cloud.wso2.com</host>
* <domain>wso2as.domain</domain>
* </service>
* <service>
* <host>esb.cloud.wso2.com</host>
* <domain>wso2esb.domain</domain>
* </service>
* <service>
* <host>governance.cloud.wso2.com</host>
* <domain>wso2governance.domain</domain>
* </service>
* <service>
* <host>gs.cloud.wso2.com</host>
* <domain>wso2gs.domain</domain>
* </service>
* </services>
* </serviceDynamicLoadbalance>
* </endpoint>
* </pre>
*/
public class ServiceDynamicLoadbalanceEndpointSerializer extends EndpointSerializer {
protected OMElement serializeEndpoint(Endpoint endpoint) {
if (!(endpoint instanceof ServiceDynamicLoadbalanceEndpoint)) {
handleException("Invalid endpoint type.");
}
fac = OMAbstractFactory.getOMFactory();
OMElement endpointElement
= fac.createOMElement("endpoint", SynapseConstants.SYNAPSE_OMNAMESPACE);
ServiceDynamicLoadbalanceEndpoint dynamicLoadbalanceEndpoint =
(ServiceDynamicLoadbalanceEndpoint) 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("serviceDynamicLoadbalance", SynapseConstants.SYNAPSE_OMNAMESPACE);
endpointElement.addChild(dynamicLoadbalanceElement);
// Load balance algorithm
dynamicLoadbalanceElement.addAttribute(XMLConfigConstants.LOADBALANCE_ALGORITHM,
dynamicLoadbalanceEndpoint.getAlgorithm().getClass().getName(),
null);
// Host-domain map
OMElement servicesEle
= fac.createOMElement("services", SynapseConstants.SYNAPSE_OMNAMESPACE);
dynamicLoadbalanceElement.addChild(servicesEle);
Map<String, String> hostDomainMap = dynamicLoadbalanceEndpoint.getHostDomainMap();
for (Map.Entry<String, String> entry : hostDomainMap.entrySet()) {
OMElement serviceEle
= fac.createOMElement("service", SynapseConstants.SYNAPSE_OMNAMESPACE);
servicesEle.addChild(serviceEle);
OMElement hostEle
= fac.createOMElement("host", SynapseConstants.SYNAPSE_OMNAMESPACE);
hostEle.setText(entry.getKey());
serviceEle.addChild(hostEle);
OMElement domainEle
= fac.createOMElement("domain", SynapseConstants.SYNAPSE_OMNAMESPACE);
domainEle.setText(entry.getValue());
serviceEle.addChild(domainEle);
}
return endpointElement;
}
}