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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.contribution.java.impl;
import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.tuscany.sca.contribution.java.JavaExport;
import org.apache.tuscany.sca.contribution.java.JavaImportExportFactory;
import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.monitor.Problem;
import org.apache.tuscany.sca.monitor.Problem.Severity;
/**
* Artifact processor for Java Export
*
* @version $Rev$ $Date$
*/
public class JavaExportProcessor implements StAXArtifactProcessor<JavaExport> {
private static final String SCA11_NS = "http://docs.oasis-open.org/ns/opencsa/sca/200912";
private static final QName EXPORT_JAVA = new QName(SCA11_NS, "export.java");
private static final String PACKAGE = "package";
private final JavaImportExportFactory factory;
public JavaExportProcessor(FactoryExtensionPoint modelFactories) {
super();
this.factory = modelFactories.getFactory(JavaImportExportFactory.class);
}
/**
* Report a error.
*
* @param problems
* @param message
* @param model
*/
private void error(Monitor monitor, String message, Object model, Object... messageParameters) {
if (monitor != null) {
Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-java-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
monitor.problem(problem);
}
}
public QName getArtifactType() {
return EXPORT_JAVA;
}
public Class<JavaExport> getModelType() {
return JavaExport.class;
}
/**
* Process <export package=""/>
*/
public JavaExport read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException {
JavaExport javaExport = this.factory.createJavaExport();
QName element = null;
try {
while (reader.hasNext()) {
int event = reader.getEventType();
switch (event) {
case START_ELEMENT:
element = reader.getName();
// Read <export.java>
if (EXPORT_JAVA.equals(element)) {
String packageName = reader.getAttributeValue(null, PACKAGE);
if (packageName == null) {
error(context.getMonitor(), "AttributePackageMissing", reader);
//throw new ContributionReadException("Attribute 'package' is missing");
} else
javaExport.setPackage(packageName);
}
break;
case XMLStreamConstants.END_ELEMENT:
if (EXPORT_JAVA.equals(reader.getName())) {
return javaExport;
}
break;
}
//Read the next element
if (reader.hasNext()) {
reader.next();
}
}
}
catch (XMLStreamException e) {
ContributionReadException ex = new ContributionReadException(e);
error(context.getMonitor(), "XMLStreamException", reader, ex);
}
return javaExport;
}
public void write(JavaExport javaExport, XMLStreamWriter writer, ProcessorContext context) throws ContributionWriteException, XMLStreamException {
// Write <export.java>
writer.writeStartElement(EXPORT_JAVA.getNamespaceURI(), EXPORT_JAVA.getLocalPart());
if (javaExport.getPackage() != null) {
writer.writeAttribute(PACKAGE, javaExport.getPackage());
}
writer.writeEndElement();
}
public void resolve(JavaExport javaExport, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException {
if (javaExport.getPackage() != null)
// Initialize the export resolver
javaExport.setModelResolver(new JavaExportModelResolver(javaExport, resolver));
}
}
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