From 0cc8ed2208c9d04057bcb00859490290e3aa948c Mon Sep 17 00:00:00 2001 From: lresende Date: Wed, 11 Nov 2009 23:08:11 +0000 Subject: Moving 1.x branches git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835129 13f79535-47bb-0310-9956-ffa450edef68 --- .../processor/xml/AnyAttributeProcessor.java | 69 +++++ .../processor/xml/AnyElementProcessor.java | 311 +++++++++++++++++++++ ...ributionGeneratedMetadataDocumentProcessor.java | 49 ++++ .../xml/ContributionMetadataDocumentProcessor.java | 131 +++++++++ .../xml/ContributionMetadataProcessor.java | 217 ++++++++++++++ .../xml/ContributionModelResolver.java | 72 +++++ 6 files changed, 849 insertions(+) create mode 100644 sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyAttributeProcessor.java create mode 100644 sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java create mode 100644 sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionGeneratedMetadataDocumentProcessor.java create mode 100644 sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataDocumentProcessor.java create mode 100644 sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataProcessor.java create mode 100644 sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionModelResolver.java (limited to 'sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java') diff --git a/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyAttributeProcessor.java b/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyAttributeProcessor.java new file mode 100644 index 0000000000..36e959ea21 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyAttributeProcessor.java @@ -0,0 +1,69 @@ +/* + * 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.processor.xml; + +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.Constants; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.processor.StAXAttributeProcessor; +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.monitor.Monitor; + +/** + * A Policy Processor used for testing. + * + * @version $Rev$ $Date$ + */ +public class AnyAttributeProcessor extends BaseStAXArtifactProcessor implements StAXAttributeProcessor { + private static final QName ANY_ATTRIBUTE = new QName(Constants.XMLSCHEMA_NS, "anyAttribute"); + + public AnyAttributeProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) { + + } + + public QName getArtifactType() { + return ANY_ATTRIBUTE; + } + + public Class getModelType() { + return String.class; + } + + public String read(QName attributeName, XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + return reader.getAttributeValue(attributeName.getNamespaceURI(), attributeName.getLocalPart()); + } + + public void write(String value, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException { + writer.setPrefix(ANY_ATTRIBUTE.getPrefix(), ANY_ATTRIBUTE.getNamespaceURI()); + writer.writeAttribute(ANY_ATTRIBUTE.getLocalPart(), value); + } + + + public void resolve(String arg0, ModelResolver arg1) throws ContributionResolveException { + + } +} diff --git a/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java b/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java new file mode 100644 index 0000000000..66bea7a4dd --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java @@ -0,0 +1,311 @@ +/* + * 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.processor.xml; + +import static javax.xml.stream.XMLStreamConstants.END_ELEMENT; +import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; + +import java.util.ArrayList; +import java.util.logging.Level; +import java.util.logging.Logger; + +import javax.xml.namespace.QName; +import javax.xml.parsers.DocumentBuilderFactory; +import javax.xml.parsers.ParserConfigurationException; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamWriter; + +import org.apache.tuscany.sca.assembly.builder.impl.ProblemImpl; +import org.apache.tuscany.sca.contribution.Constants; +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.service.ContributionReadException; +import org.apache.tuscany.sca.contribution.service.ContributionResolveException; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.monitor.Problem; +import org.apache.tuscany.sca.monitor.Problem.Severity; +import org.w3c.dom.Document; +import org.w3c.dom.Element; +import org.w3c.dom.NamedNodeMap; +import org.w3c.dom.Node; +import org.w3c.dom.traversal.DocumentTraversal; +import org.w3c.dom.traversal.NodeFilter; +import org.w3c.dom.traversal.NodeIterator; +import org.w3c.dom.traversal.TreeWalker; + +public class AnyElementProcessor implements StAXArtifactProcessor { + private static final QName ANY_ELEMENT = new QName(Constants.XMLSCHEMA_NS, "anyElement"); + + private static final Logger logger = Logger.getLogger(AnyElementProcessor.class.getName()); + private DocumentBuilderFactory documentBuilderFactory; + private Document document; + private Monitor monitor; + + public AnyElementProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) { + documentBuilderFactory = modelFactories.getFactory(DocumentBuilderFactory.class); + this.monitor = monitor; + } + + + public QName getArtifactType() { + return ANY_ELEMENT; + } + + public Class getModelType() { + return Object.class; + } + + /** + * Reads the contetns of the unknown elements and generates the DOM + * @param reader + * @param name + * @return + * @throws XMLStreamException + */ + public Object read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + + int event = reader.getEventType(); + int level = 0; + ArrayList elementList = new ArrayList(); + document = createDocument(); + + QName name = reader.getName(); + + while(reader.hasNext()){ + switch(event){ + case START_ELEMENT: + elementList.add(reader.getName().getLocalPart()); + if(level == 0){ + generateDOM(reader,null); + level++; + } + else{ + generateDOM(reader,elementList.get(elementList.size()-2).toString()); + } + + break; + case END_ELEMENT: + elementList.remove(reader.getName().getLocalPart()); + } + if(reader.hasNext()){ + event = reader.next(); + } + + if(event == START_ELEMENT || event == END_ELEMENT){ + if(reader.getName().equals(name)){ + break; + } + } + } + return document; + } + + /** + * Writes unknown portions back to the writer + * @param model + * @param writer + */ + public void write(Object model, XMLStreamWriter writer) { + + if( ! (model instanceof Document)) { + return; + } + + Document doc = (Document)model; + try{ + DocumentTraversal traversal = (DocumentTraversal)doc; + TreeWalker walker = traversal.createTreeWalker(doc.getDocumentElement(),NodeFilter.SHOW_ALL, null, true); + writeDOM(walker,writer); + } + catch(Exception e){ + if (logger.isLoggable(Level.SEVERE)) { + logger.log(Level.SEVERE, "Document not created "); + } + error("Document not created",document,e); + } + } + + public void resolve(Object arg0, ModelResolver arg1) throws ContributionResolveException { + + } + + /** + * Method to generate the DOM + * @param reader + * @param parent + * @throws Exception + */ + //private void generateDOM(String elementText, String parent) { + private void generateDOM(XMLStreamReader reader, String parent) { + try{ + String elePrefix = reader.getPrefix(); + String eleQName = reader.getLocalName(); + if (elePrefix != null && elePrefix.length() != 0) { + eleQName = elePrefix + ":" + eleQName; + } + + Element element = document.createElementNS(reader.getNamespaceURI(), eleQName); + + int attributeCount = reader.getAttributeCount(); + for(int i = 0;i < attributeCount;i++){ + String ns = reader.getAttributeNamespace(i); + String prefix = reader.getAttributePrefix(i); + String qname = reader.getAttributeLocalName(i); + String value = reader.getAttributeValue(i); + if (prefix != null && prefix.length() != 0) { + qname = prefix + ":" + qname; + } + element.setAttributeNS(ns,qname,value); + } + if(parent == null){ + if(document != null){ + document.appendChild(element); + } + else{ + if (logger.isLoggable(Level.SEVERE)) { + logger.log(Level.SEVERE, "Document not created "); + } + error("Document not created",document,element); + } + } + else{ + Node parentNode = getParentNode(document,parent); + if(parentNode != null){ + parentNode.appendChild(element); + } + else{ + if (logger.isLoggable(Level.SEVERE)) { + logger.log(Level.SEVERE, "Parent node not found"); + } + error("Parent node not found",document,parentNode.getNodeName()); + } + } + } + catch(Exception e){ + e.printStackTrace(); + if (logger.isLoggable(Level.SEVERE)) { + logger.log(Level.SEVERE, "Document not created "); + } + error("Document not created",document,e); + } + } + + /** + * Method to create an empty document + * @return + */ + private Document createDocument() { + try { + document = documentBuilderFactory.newDocumentBuilder().newDocument(); + return document; + } catch (ParserConfigurationException e) { + e.printStackTrace(); + } + return null; + } + + /** + * Method to traverse the DOM structure and write the elements + * @param walker + * @param writer + * @throws XMLStreamException + */ + private void writeDOM(TreeWalker walker,XMLStreamWriter writer) throws XMLStreamException { + + Node parent = walker.getCurrentNode(); + + writer.writeStartElement(parent.getPrefix(), parent.getLocalName(), parent.getNamespaceURI()); + + NamedNodeMap attributes = parent.getAttributes(); + + for(int i = 0;i{ + private final StAXArtifactProcessor staxProcessor; + private final XMLInputFactory inputFactory; + private final Monitor monitor; + + public ContributionMetadataDocumentProcessor(XMLInputFactory inputFactory, + StAXArtifactProcessor staxProcessor, + Monitor monitor) { + this.inputFactory = inputFactory; + this.staxProcessor = staxProcessor; + this.monitor = monitor; + } + + public ContributionMetadataDocumentProcessor(ModelFactoryExtensionPoint modelFactories, + StAXArtifactProcessor staxProcessor, + Monitor monitor) { + this.inputFactory = modelFactories.getFactory(XMLInputFactory.class); + this.staxProcessor = staxProcessor; + this.monitor = monitor; + } + + /** + * 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-xml-validation-messages", Severity.ERROR, model, message, ex); + monitor.problem(problem); + } + } + + public String getArtifactType() { + return "sca-contribution.xml"; + } + + public Class getModelType() { + return ContributionMetadata.class; + } + + public ContributionMetadata read(URL contributionURL, URI uri, URL url) throws ContributionReadException { + InputStream urlStream = null; + try { + + // Create a stream reader + URLConnection connection = url.openConnection(); + connection.setUseCaches(false); + urlStream = connection.getInputStream(); + XMLStreamReader reader = inputFactory.createXMLStreamReader(url.toString(), urlStream); + reader.nextTag(); + + // Read the contribution model + ContributionMetadata contribution = (ContributionMetadata)staxProcessor.read(reader); + + return contribution; + + } catch (XMLStreamException e) { + ContributionReadException ex = new ContributionReadException(e); + error("XMLStreamException", inputFactory, ex); + throw ex; + } catch (IOException e) { + ContributionReadException ex = new ContributionReadException(e); + error("IOException", inputFactory, ex); + throw ex; + } finally { + try { + if (urlStream != null) { + urlStream.close(); + urlStream = null; + } + } catch (IOException ioe) { + //ignore + } + } + } + + public void resolve(ContributionMetadata contribution, ModelResolver resolver) throws ContributionResolveException { + staxProcessor.resolve(contribution, resolver); + } + +} diff --git a/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataProcessor.java b/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataProcessor.java new file mode 100644 index 0000000000..3f5aacb541 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataProcessor.java @@ -0,0 +1,217 @@ +/* + * 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.xml; + +import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; + +import java.util.List; + +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.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.Composite; +import org.apache.tuscany.sca.assembly.builder.impl.ProblemImpl; +import org.apache.tuscany.sca.contribution.ContributionFactory; +import org.apache.tuscany.sca.contribution.ContributionMetadata; +import org.apache.tuscany.sca.contribution.Export; +import org.apache.tuscany.sca.contribution.Import; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor; +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.monitor.Monitor; +import org.apache.tuscany.sca.monitor.Problem; +import org.apache.tuscany.sca.monitor.Problem.Severity; + +/** + * Processor for contribution metadata + * + * @version $Rev$ $Date$ + */ +public class ContributionMetadataProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor { + + private static final String SCA10_NS = "http://www.osoa.org/xmlns/sca/1.0"; + + private static final QName CONTRIBUTION_QNAME = new QName(SCA10_NS, "contribution"); + private static final QName DEPLOYABLE_QNAME = new QName(SCA10_NS, "deployable"); + + private final AssemblyFactory assemblyFactory; + private final ContributionFactory contributionFactory; + + private final StAXArtifactProcessor extensionProcessor; + private Monitor monitor; + + public ContributionMetadataProcessor(AssemblyFactory assemblyFactory, + ContributionFactory contributionFactory, + StAXArtifactProcessor extensionProcessor, + Monitor monitor) { + this.assemblyFactory = assemblyFactory; + this.contributionFactory = contributionFactory; + this.extensionProcessor = extensionProcessor; + 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-xml-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters); + monitor.problem(problem); + } + } + + public ContributionMetadataProcessor(ModelFactoryExtensionPoint modelFactories, + StAXArtifactProcessor extensionProcessor, + Monitor monitor) { + this.assemblyFactory = modelFactories.getFactory(AssemblyFactory.class); + this.contributionFactory = modelFactories.getFactory(ContributionFactory.class); + this.extensionProcessor = extensionProcessor; + this.monitor = monitor; + } + + + public QName getArtifactType() { + return CONTRIBUTION_QNAME; + } + + public Class getModelType() { + return ContributionMetadata.class; + } + + public ContributionMetadata read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + ContributionMetadata contribution = null; + QName name = null; + + while (reader.hasNext()) { + int event = reader.getEventType(); + switch (event) { + case START_ELEMENT: + name = reader.getName(); + + if (CONTRIBUTION_QNAME.equals(name)) { + + // Read + contribution = this.contributionFactory.createContributionMetadata(); + contribution.setUnresolved(true); + + } else if (DEPLOYABLE_QNAME.equals(name)) { + + // Read + QName compositeName = getQName(reader, "composite"); + if (compositeName == null) { + error("AttributeCompositeMissing", reader); + //throw new ContributionReadException("Attribute 'composite' is missing"); + } else { + if (contribution != null) { + Composite composite = assemblyFactory.createComposite(); + composite.setName(compositeName); + composite.setUnresolved(true); + contribution.getDeployables().add(composite); + } + } + } else { + + // Read an extension element + Object extension = extensionProcessor.read(reader); + if (extension != null && contribution != null) { + if (extension instanceof Import) { + contribution.getImports().add((Import)extension); + } else if (extension instanceof Export) { + contribution.getExports().add((Export)extension); + } + } + } + break; + + case XMLStreamConstants.END_ELEMENT: + if (CONTRIBUTION_QNAME.equals(reader.getName())) { + return contribution; + } + break; + } + + //Read the next element + if (reader.hasNext()) { + reader.next(); + } + } + + return contribution; + } + + public void write(ContributionMetadata contribution, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException { + + // Write + writeStartDocument(writer, CONTRIBUTION_QNAME.getNamespaceURI(), CONTRIBUTION_QNAME.getLocalPart()); + + // Write + for (Import imp: contribution.getImports()) { + extensionProcessor.write(imp, writer); + } + + // Write + for (Export export: contribution.getExports()) { + extensionProcessor.write(export, writer); + } + + // Write + for (Composite deployable: contribution.getDeployables()) { + writeStart(writer, DEPLOYABLE_QNAME.getNamespaceURI(), DEPLOYABLE_QNAME.getLocalPart(), + new XAttr("composite", deployable.getName())); + writeEnd(writer); + } + + writeEndDocument(writer); + } + + public void resolve(ContributionMetadata contribution, ModelResolver resolver) throws ContributionResolveException { + + // Resolve imports and exports + for (Export export: contribution.getExports()) { + extensionProcessor.resolve(export, resolver); + } + for (Import import_: contribution.getImports()) { + extensionProcessor.resolve(import_, resolver); + } + + // Resolve deployable composites + List deployables = contribution.getDeployables(); + for (int i = 0, n = deployables.size(); i < n; i++) { + Composite deployable = deployables.get(i); + Composite resolved = (Composite)resolver.resolveModel(Composite.class, deployable); + if (resolved != deployable) { + deployables.set(i, resolved); + } + } + + contribution.setUnresolved(false); + } +} diff --git a/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionModelResolver.java b/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionModelResolver.java new file mode 100644 index 0000000000..f226dbbee3 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.3.2/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionModelResolver.java @@ -0,0 +1,72 @@ +/* + * 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.xml; + +import java.util.HashMap; +import java.util.Map; + +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; + +/** + * A Model Resolver for Contribution models. + * + * @version $Rev$ $Date$ + */ +public class ContributionModelResolver implements ModelResolver { + + private Map map = new HashMap(); + + public ContributionModelResolver(Contribution contribution, ModelFactoryExtensionPoint modelFactories) { + } + + public void addModel(Object resolved) { + Contribution contribution = (Contribution)resolved; + map.put(contribution.getURI(), contribution); + } + + public Object removeModel(Object resolved) { + return map.remove(((Contribution)resolved).getURI()); + } + + public T resolveModel(Class modelClass, T unresolved) { + + // Lookup a contribution for the given URI + String uri = ((Contribution)unresolved).getURI(); + if (uri != null) { + Contribution resolved = (Contribution) map.get(uri); + if (resolved != null) { + return modelClass.cast(resolved); + } + return unresolved; + } else { + + // If no URI was specified, just return the first contribution + if (!map.isEmpty()) { + Contribution resolved = map.values().iterator().next(); + return modelClass.cast(resolved); + } else { + return unresolved; + } + } + } + +} -- cgit v1.2.3