diff options
Diffstat (limited to 'sca-java-1.x/tags/1.6/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceExportProcessor.java')
-rw-r--r-- | sca-java-1.x/tags/1.6/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceExportProcessor.java | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceExportProcessor.java b/sca-java-1.x/tags/1.6/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceExportProcessor.java new file mode 100644 index 0000000000..dcd806776f --- /dev/null +++ b/sca-java-1.x/tags/1.6/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceExportProcessor.java @@ -0,0 +1,162 @@ +/* + * 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.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.resource.ResourceExport; +import org.apache.tuscany.sca.contribution.resource.ResourceImportExportFactory; +import org.apache.tuscany.sca.contribution.service.ContributionReadException; +import org.apache.tuscany.sca.contribution.service.ContributionResolveException; +import org.apache.tuscany.sca.contribution.service.ContributionWriteException; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.monitor.Problem; +import org.apache.tuscany.sca.monitor.Problem.Severity; +import org.apache.tuscany.sca.monitor.impl.ProblemImpl; + +/** + * Artifact processor for Resource export + * + * @version $Rev$ $Date$ + */ +public class ResourceExportProcessor implements StAXArtifactProcessor<ResourceExport> { + + private static final String SCA10_NS = "http://www.osoa.org/xmlns/sca/1.0"; + private static final QName EXPORT_RESOURCE = new QName(SCA10_NS, "export.resource"); + private static final String URI = "uri"; + + private final ResourceImportExportFactory factory; + private final Monitor monitor; + + public ResourceExportProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) { + this.factory = modelFactories.getFactory(ResourceImportExportFactory.class); + this.monitor = monitor; + } + + /** + * Report a error. + * + * @param problems + * @param message + * @param model + */ + private void error(String message, Object model, Object... messageParameters) { + if (monitor != null) { + Problem problem = new ProblemImpl(this.getClass().getName(), "contribution-resource-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters); + monitor.problem(problem); + } + } + + /** + * Report a exception. + * + * @param problems + * @param message + * @param model + */ + private void error(String message, Object model, Exception ex) { + if (monitor != null) { + Problem problem = new ProblemImpl(this.getClass().getName(), "contribution-resource-validation-messages", Severity.ERROR, model, message, ex); + monitor.problem(problem); + } + } + + public QName getArtifactType() { + return EXPORT_RESOURCE; + } + + public Class<ResourceExport> getModelType() { + return ResourceExport.class; + } + + /** + * Process <export.resource uri=""/> + */ + public ResourceExport read(XMLStreamReader reader) throws ContributionReadException { + ResourceExport resourceExport = this.factory.createResourceExport(); + QName element = null; + + try { + while (reader.hasNext()) { + int event = reader.getEventType(); + switch (event) { + case START_ELEMENT: + element = reader.getName(); + + // Read <export.resource> + if (EXPORT_RESOURCE.equals(element)) { + String uri = reader.getAttributeValue(null, URI); + if (uri == null) { + error("AttributeURIMissing", reader); + //throw new ContributionReadException("Attribute 'uri' is missing"); + } else + resourceExport.setURI(uri); + } + + break; + case XMLStreamConstants.END_ELEMENT: + if (EXPORT_RESOURCE.equals(reader.getName())) { + return resourceExport; + } + break; + } + + // Read the next element + if (reader.hasNext()) { + reader.next(); + } + } + } + catch (XMLStreamException e) { + ContributionReadException ex = new ContributionReadException(e); + error("XMLStreamException", reader, ex); + } + + return resourceExport; + } + + public void write(ResourceExport resourceExport, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException { + + // Write <export.resource> + writer.writeStartElement(EXPORT_RESOURCE.getNamespaceURI(), EXPORT_RESOURCE.getLocalPart()); + + if (resourceExport.getURI() != null) { + writer.writeAttribute(URI, resourceExport.getURI()); + } + + writer.writeEndElement(); + } + + public void resolve(ResourceExport resourceExport, ModelResolver resolver) throws ContributionResolveException { + + if (resourceExport.getURI() != null) + // Initialize the export's model resolver + resourceExport.setModelResolver(new ResourceExportModelResolver(resourceExport, resolver)); + } +} |