net.javacrumbs.smock.common.XsltUtil Maven / Gradle / Ivy
/**
* Copyright 2009-2010 the original author or authors.
*
* 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 net.javacrumbs.smock.common;
import java.util.Collections;
import java.util.Map;
import java.util.Map.Entry;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import org.springframework.xml.transform.StringResult;
import org.springframework.xml.transform.StringSource;
import org.springframework.xml.transform.TransformerObjectSupport;
import org.springframework.xml.xpath.Jaxp13XPathTemplate;
/**
* XSLT helper class.
* @author Lukas Krecan
*
*/
class XsltUtil extends TransformerObjectSupport{
private static final Map NAMESPACES = Collections.singletonMap("xs", "http://www.w3.org/1999/XSL/Transform");
private final Map parameters;
public XsltUtil(Map parameters) {
this.parameters = parameters;
}
/**
* Returns true if given message is a XSL Template.
* @param stringSource
* @return
*/
boolean isTemplate(Source context) {
Jaxp13XPathTemplate template = new Jaxp13XPathTemplate();
template.setNamespaces(NAMESPACES);
return template.evaluateAsBoolean("count(/xs:stylesheet)>0", context);
}
/**
* Does XSLT transformation.
* @param template
* @param source
* @return
* @throws TransformerException
*/
Source transform(Source template, Source source)
{
try {
StringResult transformedExpectedDocument = new StringResult();
transform(template, source, transformedExpectedDocument);
return new StringSource(transformedExpectedDocument.toString());
} catch (TransformerException e) {
throw new IllegalArgumentException("Transformation error",e);
}
}
/**
* Does XSLT transformation.
* @param template
* @param source
* @return
* @throws TransformerException
*/
void transform(Source template, Source source, Result result) throws TransformerException {
Transformer transformer = getTransformerFactory().newTransformer(template);
setParameters(transformer);
transformer.transform(source, result);
}
/**
* Sets parameters to the transformer.
* @param transformer
*/
private void setParameters(Transformer transformer) {
for (Entry entry : parameters.entrySet()) {
transformer.setParameter(entry.getKey(), entry.getValue());
}
}
}