/*
* 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.wso2.carbon.mediator.transform.xml;
import org.apache.synapse.config.xml.AbstractMediatorFactory;
import org.apache.synapse.Mediator;
import org.apache.synapse.SynapseConstants;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMAttribute;
import org.apache.synapse.config.xml.SynapseXPathFactory;
import org.jaxen.JaxenException;
import org.wso2.carbon.mediator.transform.Input;
import org.wso2.carbon.mediator.transform.Output;
import org.wso2.carbon.mediator.transform.SmooksMediator;
import javax.xml.namespace.QName;
import java.util.Properties;
public class SmooksMediatorFactory extends AbstractMediatorFactory {
public static final QName SMOOKS_Q = new QName(
SynapseConstants.SYNAPSE_NAMESPACE, "smooks");
public static final QName CONFIG_KEY = new QName("config-key");
public Mediator createSpecificMediator(OMElement omElement, Properties properties) {
SmooksMediator smooks = new SmooksMediator();
OMAttribute configFileAttr = omElement.getAttribute(CONFIG_KEY);
if (configFileAttr != null) {
smooks.setConfigKey(configFileAttr.getAttributeValue());
}
OMElement inputElement = omElement.getFirstChildWithName(
new QName(SynapseConstants.SYNAPSE_NAMESPACE, "input"));
if (inputElement != null) {
smooks.setInput(createInput(inputElement));
} else {
smooks.setInput(new Input());
}
OMElement outputElement = omElement.getFirstChildWithName(
new QName(SynapseConstants.SYNAPSE_NAMESPACE, "output"));
if (inputElement != null) {
smooks.setOutput(createOutput(outputElement));
} else {
smooks.setOutput(new Output());
}
return smooks;
}
private Input createInput(OMElement input) {
Input in = new Input();
OMAttribute typeAttr = input.getAttribute(new QName("type"));
if (typeAttr == null) {
handleException("type attribute is required for the input element");
}
assert typeAttr != null;
String typeValue = typeAttr.getAttributeValue();
if (typeValue.equals("text")) {
in.setType(SmooksMediator.TYPES.TEXT);
} else if (typeValue.equals("xml")) {
in.setType(SmooksMediator.TYPES.XML);
} else {
handleException("Unexpected type specified as the input: " + typeValue);
}
if (input.getAttribute(new QName("expression")) != null) {
try {
in.setExpression(SynapseXPathFactory.getSynapseXPath(input, new QName("expression")));
} catch (JaxenException e) {
handleException("Error creating the XPath expression", e);
}
}
return in;
}
private Output createOutput(OMElement output) {
Output in = new Output();
OMAttribute typeAttr = output.getAttribute(new QName("type"));
if (typeAttr == null) {
handleException("type attribute is required for the input element");
}
assert typeAttr != null;
String typeValue = typeAttr.getAttributeValue();
if (typeValue.equals("text")) {
in.setType(SmooksMediator.TYPES.TEXT);
} else if (typeValue.equals("xml")) {
in.setType(SmooksMediator.TYPES.XML);
} else {
handleException("Unexpected type specified as the input: " + typeValue);
}
if (output.getAttribute(new QName("expression")) != null) {
try {
in.setExpression(SynapseXPathFactory.getSynapseXPath(output, new QName("expression")));
} catch (JaxenException e) {
handleException("Error creating the XPath expression", e);
}
}
OMAttribute actionAttr = output.getAttribute(new QName("action"));
if (actionAttr != null && actionAttr.getAttributeValue() != null) {
in.setAction(actionAttr.getAttributeValue());
}
OMAttribute propertyAttr = output.getAttribute(new QName("property"));
if (propertyAttr != null && propertyAttr.getAttributeValue() != null) {
in.setProperty(propertyAttr.getAttributeValue());
}
return in;
}
public QName getTagQName() {
return SMOOKS_Q;
}
}