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Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta1-RC2/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportProcessor.java | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta1-RC2/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportProcessor.java b/sca-java-2.x/tags/2.0-Beta1-RC2/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportProcessor.java new file mode 100644 index 0000000000..7e341f60fd --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta1-RC2/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportProcessor.java @@ -0,0 +1,148 @@ +/* + * 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.resource.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.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.contribution.resource.ResourceImport; +import org.apache.tuscany.sca.contribution.resource.ResourceImportExportFactory; +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 Namespace import + * + * @version $Rev$ $Date$ + */ +public class ResourceImportProcessor implements StAXArtifactProcessor<ResourceImport> { + private static final String URI = "uri"; + private static final String LOCATION = "location"; + + private final ResourceImportExportFactory factory; + + public ResourceImportProcessor(FactoryExtensionPoint modelFactories) { + this.factory = modelFactories.getFactory(ResourceImportExportFactory.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-resource-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters); + monitor.problem(problem); + } + } + + public QName getArtifactType() { + return ResourceImport.TYPE; + } + + public Class<ResourceImport> getModelType() { + return ResourceImport.class; + } + + /** + * Process <import.resource uri="" location=""/> + */ + public ResourceImport read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException { + ResourceImport resourceImport = this.factory.createResourceImport(); + QName element; + + try { + while (reader.hasNext()) { + int event = reader.getEventType(); + switch (event) { + case START_ELEMENT: + element = reader.getName(); + + // Read <import> + if (ResourceImport.TYPE.equals(element)) { + String uri = reader.getAttributeValue(null, URI); + if (uri == null) { + error(context.getMonitor(), "AttributeURIMissing", reader); + //throw new ContributionReadException("Attribute 'uri' is missing"); + } else + resourceImport.setURI(uri); + + String location = reader.getAttributeValue(null, LOCATION); + if (location != null) { + resourceImport.setLocation(location); + } + } + break; + case XMLStreamConstants.END_ELEMENT: + if (ResourceImport.TYPE.equals(reader.getName())) { + return resourceImport; + } + 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 resourceImport; + } + + public void write(ResourceImport resourceImport, XMLStreamWriter writer, ProcessorContext context) throws ContributionWriteException, XMLStreamException { + + // Write <import> + writer.writeStartElement(ResourceImport.TYPE.getNamespaceURI(), ResourceImport.TYPE.getLocalPart()); + + if (resourceImport.getURI() != null) { + writer.writeAttribute(URI, resourceImport.getURI()); + } + if (resourceImport.getLocation() != null) { + writer.writeAttribute(LOCATION, resourceImport.getLocation()); + } + + writer.writeEndElement(); + } + + + public void resolve(ResourceImport model, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException { + } +} |