/*
* 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.config.xml;
import org.apache.axiom.om.OMAttribute;
import org.apache.axiom.om.OMElement;
import org.apache.synapse.Mediator;
import org.apache.synapse.mediators.builtin.CalloutMediator;
import org.jaxen.JaxenException;
import javax.xml.namespace.QName;
import java.util.Properties;
/**
* Factory for {@link CalloutMediator} instances.
*
* <pre>
* <callout serviceURL="string" [action="string"]>
* <configuration [axis2xml="string"] [repository="string"]/>?
* <source xpath="expression" | key="string">
* <target xpath="expression" | key="string"/>
* </callout>
* </pre>
*/
public class CalloutMediatorFactory extends AbstractMediatorFactory {
private static final QName TAG_NAME
= new QName(XMLConfigConstants.SYNAPSE_NAMESPACE, "callout");
private static final QName ATT_URL = new QName("serviceURL");
private static final QName ATT_ACTION = new QName("action");
private static final QName ATT_AXIS2XML = new QName("axis2xml");
private static final QName ATT_REPOSITORY = new QName("repository");
private static final QName Q_CONFIG
= new QName(XMLConfigConstants.SYNAPSE_NAMESPACE, "configuration");
private static final QName Q_SOURCE
= new QName(XMLConfigConstants.SYNAPSE_NAMESPACE, "source");
private static final QName Q_TARGET
= new QName(XMLConfigConstants.SYNAPSE_NAMESPACE, "target");
protected Mediator createSpecificMediator(OMElement elem, Properties properties) {
CalloutMediator callout = new CalloutMediator();
OMAttribute attServiceURL = elem.getAttribute(ATT_URL);
OMAttribute attAction = elem.getAttribute(ATT_ACTION);
OMElement configElt = elem.getFirstChildWithName(Q_CONFIG);
OMElement sourceElt = elem.getFirstChildWithName(Q_SOURCE);
OMElement targetElt = elem.getFirstChildWithName(Q_TARGET);
if (attServiceURL != null) {
callout.setServiceURL(attServiceURL.getAttributeValue());
} else {
handleException("The 'serviceURL' attribute is required for the Callout mediator");
}
if (attAction != null) {
callout.setAction(attAction.getAttributeValue());
}
if (configElt != null) {
OMAttribute axis2xmlAttr = configElt.getAttribute(ATT_AXIS2XML);
OMAttribute repoAttr = configElt.getAttribute(ATT_REPOSITORY);
if (axis2xmlAttr != null && axis2xmlAttr.getAttributeValue() != null) {
callout.setAxis2xml(axis2xmlAttr.getAttributeValue());
}
if (repoAttr != null && repoAttr.getAttributeValue() != null) {
callout.setClientRepository(repoAttr.getAttributeValue());
}
}
if (sourceElt != null) {
if (sourceElt.getAttribute(ATT_XPATH) != null) {
try {
callout.setRequestXPath(
SynapseXPathFactory.getSynapseXPath(sourceElt, ATT_XPATH));
} catch (JaxenException e) {
handleException("Invalid source XPath : "
+ sourceElt.getAttributeValue(ATT_XPATH));
}
} else if (sourceElt.getAttribute(ATT_KEY) != null) {
callout.setRequestKey(sourceElt.getAttributeValue(ATT_KEY));
} else {
handleException("A 'xpath' or 'key' attribute " +
"is required for the Callout 'source'");
}
} else {
handleException("The message 'source' must be specified for a Callout mediator");
}
if (targetElt != null) {
if (targetElt.getAttribute(ATT_XPATH) != null) {
try {
callout.setTargetXPath(
SynapseXPathFactory.getSynapseXPath(targetElt, ATT_XPATH));
} catch (JaxenException e) {
handleException("Invalid target XPath : "
+ targetElt.getAttributeValue(ATT_XPATH));
}
} else if (targetElt.getAttribute(ATT_KEY) != null) {
callout.setTargetKey(targetElt.getAttributeValue(ATT_KEY));
} else {
handleException("A 'xpath' or 'key' attribute " +
"is required for the Callout 'target'");
}
} else {
handleException("The message 'target' must be specified for a Callout mediator");
}
return callout;
}
public QName getTagQName() {
return TAG_NAME;
}
}