/**
* Copyright (c) 2008, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* 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.mediator.router;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMAttribute;
import org.apache.synapse.config.xml.SynapseXPathSerializer;
import org.apache.synapse.config.xml.SynapseXPathFactory;
import org.apache.synapse.util.xpath.SynapseXPath;
import org.wso2.carbon.mediator.service.MediatorException;
import org.wso2.carbon.mediator.service.ui.AbstractListMediator;
import org.wso2.carbon.mediator.target.TargetMediator;
import org.jaxen.JaxenException;
import javax.xml.namespace.QName;
import java.util.regex.Pattern;
public class RouteMediator extends AbstractListMediator {
private static final QName ATT_MATCH = new QName("match");
private static final QName ATT_BREAK_ROUTER = new QName("breakRouter");
private SynapseXPath expression;
private Pattern match;
private boolean breakRouter = true;
public SynapseXPath getExpression() {
return expression;
}
public Pattern getMatch() {
return match;
}
public boolean isBreakRouter() {
return breakRouter;
}
public void setExpression(SynapseXPath expression) {
this.expression = expression;
}
public void setMatch(Pattern match) {
this.match = match;
}
public void setBreakRouter(boolean breakRouter) {
this.breakRouter = breakRouter;
}
public RouteMediator() {
addChild(new TargetMediator());
}
public OMElement serialize(OMElement parent) {
OMElement routeElem = fac.createOMElement("route", synNS);
if (expression != null) {
SynapseXPathSerializer.serializeXPath(
expression, routeElem, "expression");
} else {
throw new MediatorException("Incomplete route has been found in the " +
"serialization of the RouterMediator");
}
if (match != null) {
routeElem.addAttribute(
fac.createOMAttribute("match", nullNS, match.pattern()));
}
if (!breakRouter) {
routeElem.addAttribute(fac.createOMAttribute("breakRouter", nullNS, "false"));
}
serializeChildren(routeElem, getList());
if (parent != null) {
parent.addChild(routeElem);
}
return routeElem;
}
public void build(OMElement elem) {
OMAttribute expressionAttr = elem.getAttribute(ATT_EXPRN);
OMAttribute matchAttr = elem.getAttribute(ATT_MATCH);
OMAttribute breakRouterAttr = elem.getAttribute(ATT_BREAK_ROUTER);
expression = null;
match = null;
breakRouter = true;
getList().clear();
if (expressionAttr != null && expressionAttr.getAttributeValue() != null) {
try {
expression =
SynapseXPathFactory.getSynapseXPath(elem, ATT_EXPRN);
} catch (JaxenException e) {
throw new MediatorException("Couldn't build the xpath from the expression : "
+ expressionAttr.getAttributeValue());
}
} else {
throw new MediatorException("Route without an expression attribute has been found, " +
"but it is required to have an expression for all routes");
}
if (matchAttr != null && matchAttr.getAttributeValue() != null) {
match = Pattern.compile(matchAttr.getAttributeValue());
}
if (breakRouterAttr != null && breakRouterAttr.getAttributeValue() != null) {
breakRouter = Boolean.parseBoolean(breakRouterAttr.getAttributeValue());
}
addChildren(elem, this);
}
public String getTagLocalName() {
return "route";
}
}