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/*
* 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.tuscany.sca.implementation.script;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.tuscany.implementation.spi.AbstractStAXArtifactProcessor;
import org.apache.tuscany.implementation.spi.ResourceHelper;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.xml.Constants;
import org.apache.tuscany.sca.contribution.service.ContributionReadException;
/**
* ArtifactProcessor to read the SCDL XML for script implementations
*
* <code><implementation.script script="pathToScriptFile" [language="scriptLanguage"] /></code>
*/
public class ScriptArtifactProcessor extends AbstractStAXArtifactProcessor<ScriptImplementation> {
private static final QName IMPLEMENTATION_SCRIPT_QNAME = new QName(Constants.SCA10_NS, "implementation.script");
public ScriptArtifactProcessor(AssemblyFactory assemblyFactory) {
super(assemblyFactory);
}
public QName getArtifactType() {
return IMPLEMENTATION_SCRIPT_QNAME;
}
public Class<ScriptImplementation> getModelType() {
return ScriptImplementation.class;
}
public ScriptImplementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
String scriptName = reader.getAttributeValue(null, "script");
String scriptLanguage = reader.getAttributeValue(null, "language");
if (scriptLanguage == null || scriptLanguage.length() < 1) {
int i = scriptName.lastIndexOf('.');
scriptLanguage = scriptName.substring(i+1);
}
while (reader.hasNext()) {
if (reader.next() == END_ELEMENT && IMPLEMENTATION_SCRIPT_QNAME.equals(reader.getName())) {
break;
}
}
String scriptSrc = ResourceHelper.readResource(scriptName);
ScriptImplementation scriptImpl = new ScriptImplementation(scriptName, scriptLanguage, scriptSrc);
// TODO: How to get the script URI? Should use the contrabution service
// the uri is used in the resolve method (perhaps incorrectly?) to get the .componentType sidefile
scriptImpl.setURI(Thread.currentThread().getContextClassLoader().getResource(scriptName).toString());
return scriptImpl;
}
public void write(ScriptImplementation scriptImplementation, XMLStreamWriter writer) throws XMLStreamException {
writer.writeStartElement(Constants.SCA10_NS, "implementation.script");
if (scriptImplementation.getScriptName() != null) {
writer.writeAttribute("script", scriptImplementation.getScriptName());
}
if (scriptImplementation.getScriptLanguage() != null) {
writer.writeAttribute("language", scriptImplementation.getScriptLanguage());
}
writer.writeEndElement();
}
}
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