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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.resource.impl;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+
+import java.io.IOException;
+import java.net.URL;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+import org.apache.tuscany.sca.contribution.DeployedArtifact;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+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.implementation.resource.ResourceImplementation;
+import org.apache.tuscany.sca.implementation.resource.ResourceImplementationFactory;
+
+
+/**
+ * Implements a STAX artifact processor for resource implementations.
+ */
+public class ResourceImplementationProcessor implements StAXArtifactProcessor<ResourceImplementation> {
+ private static final QName IMPLEMENTATION_RESOURCE = new QName("http://www.osoa.org/xmlns/sca/1.0", "implementation.resource");
+
+ private ResourceImplementationFactory resourceFactory;
+ private ContributionFactory contributionFactory;
+
+ public ResourceImplementationProcessor(ResourceImplementationFactory resourceFactory, ContributionFactory contributionFactory) {
+ this.resourceFactory = resourceFactory;
+ this.contributionFactory = contributionFactory;
+ }
+
+ public QName getArtifactType() {
+ // Returns the qname of the XML element processed by this processor
+ return IMPLEMENTATION_RESOURCE;
+ }
+
+ public Class<ResourceImplementation> getModelType() {
+ // Returns the type of model processed by this processor
+ return ResourceImplementation.class;
+ }
+
+ public ResourceImplementation read(XMLStreamReader reader) throws ContributionReadException {
+ assert IMPLEMENTATION_RESOURCE.equals(reader.getName());
+
+ // Read an <implementation.resource> element
+ try {
+ // Read the directory attribute. This is where the sample
+ // CRUD implementation will persist resources.
+ String location = reader.getAttributeValue(null, "location");
+
+ // Create an initialize the resource implementationmodel
+ ResourceImplementation implementation = resourceFactory.createResourceImplementation();
+ implementation.setLocation(location);
+ implementation.setUnresolved(true);
+
+ // Skip to end element
+ while (reader.hasNext()) {
+ if (reader.next() == END_ELEMENT && IMPLEMENTATION_RESOURCE.equals(reader.getName())) {
+ break;
+ }
+ }
+
+ return implementation;
+ } catch (XMLStreamException e) {
+ throw new ContributionReadException(e);
+ }
+ }
+
+ public void resolve(ResourceImplementation impl, ModelResolver resolver) throws ContributionResolveException {
+
+ // Resolve the resource directory location
+ DeployedArtifact artifact = contributionFactory.createDeployedArtifact();
+ artifact.setURI(impl.getLocation());
+ DeployedArtifact resolved = resolver.resolveModel(DeployedArtifact.class, artifact);
+ if (resolved.getLocation() != null) {
+ try {
+ impl.setLocationURL(new URL(resolved.getLocation()));
+ impl.setUnresolved(false);
+ } catch (IOException e) {
+ throw new ContributionResolveException(e);
+ }
+ }
+ }
+
+ public void write(ResourceImplementation model, XMLStreamWriter outputSource) throws ContributionWriteException {
+ }
+}