/*
* 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.commons.evaluators.source;
import org.apache.synapse.commons.evaluators.EvaluatorContext;
import org.apache.synapse.commons.evaluators.EvaluatorException;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axiom.om.xpath.AXIOMXPath;
import org.apache.axiom.om.impl.llom.OMTextImpl;
import org.apache.axiom.om.impl.llom.OMElementImpl;
import org.apache.axiom.om.impl.llom.OMDocumentImpl;
import org.apache.axiom.om.OMAttribute;
import org.jaxen.JaxenException;
import java.util.List;
public class SOAPEnvelopeTextRetriever implements SourceTextRetriever {
private String source;
private AXIOMXPath compiledXPath;
public SOAPEnvelopeTextRetriever(String source) {
this.source = source;
}
public String getSourceText(EvaluatorContext context) throws EvaluatorException {
SOAPEnvelope envelope = context.getMessageContext().getEnvelope();
Object result;
try {
if (compiledXPath == null) {
compiledXPath = new AXIOMXPath(source);
}
result = compiledXPath.evaluate(envelope);
} catch (JaxenException e) {
throw new EvaluatorException("Error while parsing the XPath expression: " + source, e);
}
if (result instanceof List) {
List list = (List) result;
if (list.size() == 1 && list.get(0) == null) {
return null;
}
StringBuffer textValue = new StringBuffer();
for (Object o : list) {
if (o instanceof OMTextImpl) {
textValue.append(((OMTextImpl) o).getText());
} else if (o instanceof OMElementImpl) {
String s = ((OMElementImpl) o).getText();
if (s.trim().length() == 0) {
s = o.toString();
}
textValue.append(s);
} else if (o instanceof OMDocumentImpl) {
textValue.append(((OMDocumentImpl) o).getOMDocumentElement().toString());
} else if (o instanceof OMAttribute) {
textValue.append(((OMAttribute) o).getAttributeValue());
}
}
return textValue.toString();
} else {
return result.toString();
}
}
public String getSource() {
return source;
}
}