/*
* 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.wso2.carbon.event.ws.internal.notify;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMFactory;
import org.apache.axiom.om.OMNamespace;
import org.apache.axis2.AxisFault;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.client.ServiceClient;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.event.ws.internal.util.EventingConstants;
import org.wso2.carbon.event.core.subscription.EventDispatcher;
import org.wso2.carbon.event.core.subscription.Subscription;
import org.wso2.carbon.event.core.Message;
import org.wso2.carbon.utils.multitenancy.MultitenantConstants;
public class WSEventDispatcher implements EventDispatcher {
private static Log log = LogFactory.getLog(WSEventDispatcher.class);
public void notify(Message message, Subscription subscription) {
String endpoint = subscription.getEventSinkURL();
String topic = subscription.getTopicName();
OMFactory factory = OMAbstractFactory.getOMFactory();
OMNamespace topicNs = factory.createOMNamespace(
EventingConstants.NOTIFICATION_NS_URI,
EventingConstants.NOTIFICATION_NS_PREFIX);
OMElement topicEle = factory.createOMElement(EventingConstants.WSE_EN_TOPIC, topicNs);
topicEle.setText(topic);
OMElement domainElement = null;
String tenantDomain = message.getProperty(MultitenantConstants.TENANT_DOMAIN_HEADER_NAME);
if (tenantDomain != null) {
OMNamespace domainNs = factory.createOMNamespace(MultitenantConstants.TENANT_DOMAIN_HEADER_NAMESPACE, null);
domainElement = factory.createOMElement(MultitenantConstants.TENANT_DOMAIN_HEADER_NAME, domainNs);
domainElement.setText(tenantDomain);
}
OMElement payload = message.getMessage().cloneOMElement();
try {
sendNotification(topicEle, domainElement, payload, endpoint);
} catch (Exception e) {
log.error("Unable to send message", e);
}
}
protected void sendNotification(OMElement topicHeader,
OMElement tenantDomainHeader,
OMElement payload,
String endpoint)
throws AxisFault {
// The parameter args is used as a mechanism to pass any argument into this method, which
// is used by the implementations that extend the behavior of the default Carbon Event
// Dispatcher.
ServiceClient serviceClient = new ServiceClient();
Options options = new Options();
options.setTo(new EndpointReference(endpoint));
options.setAction(EventingConstants.WSE_PUBLISH);
serviceClient.setOptions(options);
serviceClient.addHeader(topicHeader);
if (tenantDomainHeader != null){
serviceClient.addHeader(tenantDomainHeader);
}
serviceClient.fireAndForget(payload);
}
protected void sendNotification(OMElement topicHeader,
OMElement payload,
String endpoint)
throws AxisFault {
// The parameter args is used as a mechanism to pass any argument into this method, which
// is used by the implementations that extend the behavior of the default Carbon Event
// Dispatcher.
ServiceClient serviceClient = new ServiceClient();
Options options = new Options();
options.setTo(new EndpointReference(endpoint));
options.setAction(EventingConstants.WSE_PUBLISH);
serviceClient.setOptions(options);
serviceClient.addHeader(topicHeader);
serviceClient.fireAndForget(payload);
}
}