/*
* 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.mediators.filters.router;
import org.apache.synapse.MessageContext;
import org.apache.synapse.commons.evaluators.EvaluatorContext;
import org.apache.synapse.commons.evaluators.EvaluatorException;
import org.apache.synapse.core.axis2.Axis2MessageContext;
import org.apache.synapse.mediators.AbstractMediator;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Checks whether the route condition evaluates to true and mediates using the target if it evaluates to true.
* Matching route will break the router if the <code>breakRoute</code> is set to true on the evaluated route
*
* @see org.apache.synapse.Mediator
*/
public class ConditionalRouterMediator extends AbstractMediator {
private List<Route> routes = new ArrayList<Route>();
private boolean continueAfter;
private boolean continueAfterExplicitlySet;
public boolean mediate(MessageContext synCtx) {
Axis2MessageContext axis2smc = (Axis2MessageContext) synCtx;
org.apache.axis2.context.MessageContext axis2MessageCtx =
axis2smc.getAxis2MessageContext();
Object headers = axis2MessageCtx.getProperty(
org.apache.axis2.context.MessageContext.TRANSPORT_HEADERS);
Map<String, String> evaluatorHeaders = new HashMap<String, String>();
if (headers != null && headers instanceof Map) {
Map headersMap = (Map) headers;
for (Object entryObj : headersMap.entrySet()) {
Map.Entry entry = (Map.Entry) entryObj;
if (entry.getKey() instanceof String && entry.getValue() instanceof String) {
evaluatorHeaders.put((String) entry.getKey(), (String) entry.getValue());
}
}
}
String restParams = (String) axis2MessageCtx.getProperty("REST_URL_POSTFIX");
String url = synCtx.getTo().getAddress() + (restParams != null ? restParams : "");
EvaluatorContext context = new EvaluatorContext(url, evaluatorHeaders);
context.setProperties(((Axis2MessageContext) synCtx).getProperties());
context.setMessageContext(((Axis2MessageContext) synCtx).getAxis2MessageContext());
try {
for (Route route : routes) {
if (route.getEvaluator().evaluate(context)) {
route.getTarget().mediate(synCtx);
if (route.isBreakRoute()) {
break;
}
}
}
} catch (EvaluatorException ee) {
handleException("Couldn't evaluate the route condition", ee, synCtx);
}
return continueAfter;
}
public List<Route> getRoutes() {
return routes;
}
public void addRoute(Route route) {
routes.add(route);
}
public boolean isContinueAfter() {
return continueAfter;
}
public void setContinueAfter(boolean continueAfter) {
this.continueAfterExplicitlySet = true;
this.continueAfter = continueAfter;
}
public boolean isContinueAfterExplicitlySet() {
return continueAfterExplicitlySet;
}
}