/*
* Copyright (c) 2005-2010, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. 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.mediators.store;
import org.apache.axis2.description.Parameter;
import org.apache.axis2.engine.AxisConfiguration;
import org.apache.synapse.Mediator;
import org.apache.synapse.MessageContext;
import org.apache.synapse.SynapseConstants;
import org.apache.synapse.core.axis2.Axis2MessageContext;
import org.apache.synapse.mediators.AbstractMediator;
import org.apache.synapse.message.store.MessageStore;
/**
* <code>MessageStoreMediator</code> will store the incoming Messages in associated MessageStore
*/
public class MessageStoreMediator extends AbstractMediator{
/**
* Name of the Mediator
*/
private String name;
/**
*MessageStore Name
*/
private String messageStoreName;
/**
* Sequence name to be invoked when the message is stored
*/
private String onStoreSequence;
public boolean mediate(MessageContext synCtx) {
if(synCtx != null) {
MessageStore messageStore = synCtx.getConfiguration().getMessageStore(messageStoreName);
if(messageStore != null) {
if(onStoreSequence != null) {
Mediator sequence = synCtx.getSequence(onStoreSequence);
if(sequence != null) {
sequence.mediate(synCtx);
}
}
if(log.isDebugEnabled()) {
log.debug("Message Store mediator storing the message : \n " + synCtx.getEnvelope());
}
// Here we set the server name in the message context before storing the message.
//This can be used by the Processors in a clustering setup.
if(synCtx instanceof Axis2MessageContext) {
String serverName =
getAxis2ParameterValue(((Axis2MessageContext)synCtx).
getAxis2MessageContext().
getConfigurationContext().getAxisConfiguration(),
SynapseConstants.Axis2Param.SYNAPSE_SERVER_NAME);
if(serverName != null) {
synCtx.setProperty(SynapseConstants.Axis2Param.SYNAPSE_SERVER_NAME,
serverName);
}
}
messageStore.offer(synCtx);
// with the nio transport, this causes the listener not to write a 202
// Accepted response, as this implies that Synapse does not yet know if
// a 202 or 200 response would be written back.
((Axis2MessageContext) synCtx).getAxis2MessageContext().getOperationContext().setProperty(
org.apache.axis2.Constants.RESPONSE_WRITTEN, "SKIP");
return true;
}
}
return false;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getMessageStoreName() {
return messageStoreName;
}
public void setMessageStoreName(String messageStoreName) {
this.messageStoreName = messageStoreName;
}
public String getOnStoreSequence() {
return onStoreSequence;
}
public void setOnStoreSequence(String onStoreSequence) {
this.onStoreSequence = onStoreSequence;
}
/**
* Helper method to get a value of a parameters in the AxisConfiguration
*
* @param axisConfiguration AxisConfiguration instance
* @param paramKey The name / key of the parameter
* @return The value of the parameter
*/
private static String getAxis2ParameterValue(AxisConfiguration axisConfiguration,
String paramKey) {
Parameter parameter = axisConfiguration.getParameter(paramKey);
if (parameter == null) {
return null;
}
Object value = parameter.getValue();
if (value != null && value instanceof String) {
return (String) parameter.getValue();
} else {
return null;
}
}
}