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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.bpel.impl;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.net.URL;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
+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.implementation.bpel.BPELFactory;
+import org.apache.tuscany.sca.implementation.bpel.BPELProcessDefinition;
+
+/**
+ * BPEL document processor responsible for reading a BPEL file and producing necessary model info about it
+ *
+ * @version $Rev$ $Date$
+ */
+public class BPELDocumentProcessor extends BaseStAXArtifactProcessor implements URLArtifactProcessor<BPELProcessDefinition> {
+ public final static QName BPEL_PROCESS_DEFINITION = new QName("http://schemas.xmlsoap.org/ws/2004/03/business-process/", "process");
+ public final static String NAME_ELEMENT = "name";
+
+ private final static XMLInputFactory inputFactory = XMLInputFactory.newInstance();
+
+ private final BPELFactory factory;
+
+ public BPELDocumentProcessor(ModelFactoryExtensionPoint modelFactories) {
+ this.factory = modelFactories.getFactory(BPELFactory.class);
+ }
+
+ public String getArtifactType() {
+ return "*.bpel";
+ }
+
+ public Class<BPELProcessDefinition> getModelType() {
+ return BPELProcessDefinition.class;
+ }
+
+ public BPELProcessDefinition read(URL contributionURL, URI artifactURI, URL artifactURL) throws ContributionReadException {
+ BPELProcessDefinition processDefinition = null;
+ try {
+ //for now we are just using process name
+ //and relying on componentType file for service definition
+ //so it's ok to set resolved for now
+ processDefinition = indexRead(artifactURL);
+ processDefinition.setUnresolved(false);
+ } catch (Exception e) {
+ throw new ContributionReadException(e);
+ }
+
+ return processDefinition;
+ }
+
+
+ public void resolve(BPELProcessDefinition model, ModelResolver resolver) throws ContributionResolveException {
+ // TODO Auto-generated method stub
+ }
+
+ /**
+ * Read the namespace for the WSDL definition and inline schemas
+ *
+ * @param doc
+ * @return
+ * @throws IOException
+ * @throws XMLStreamException
+ */
+ protected BPELProcessDefinition indexRead(URL doc) throws Exception {
+ BPELProcessDefinition processDefinition = factory.createBPELProcessDefinition();
+ processDefinition.setUnresolved(true);
+ processDefinition.setLocation(doc);
+
+ InputStream is = doc.openStream();
+ XMLStreamReader reader = null;
+ try {
+ reader = inputFactory.createXMLStreamReader(is);
+ int eventType = reader.getEventType();
+ while (true) {
+ if (eventType == XMLStreamConstants.START_ELEMENT) {
+ QName elementName = reader.getName();
+ if (BPEL_PROCESS_DEFINITION.equals(elementName)) {
+ QName processName = new QName(getString(reader, org.apache.tuscany.sca.assembly.xml.Constants.TARGET_NAMESPACE), getString(reader, NAME_ELEMENT));
+ processDefinition.setName(processName);
+ break;
+ }
+ }
+ if (reader.hasNext()) {
+ eventType = reader.next();
+ } else {
+ break;
+ }
+ }
+ } finally {
+ if(reader != null) {
+ reader.close();
+ }
+ is.close();
+ }
+
+ return processDefinition;
+ }
+
+
+}