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Diffstat (limited to 'sca-java-1.x/branches/sca-java-0.91/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/ConstrainingTypeProcessor.java')
-rw-r--r-- | sca-java-1.x/branches/sca-java-0.91/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/ConstrainingTypeProcessor.java | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-0.91/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/ConstrainingTypeProcessor.java b/sca-java-1.x/branches/sca-java-0.91/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/ConstrainingTypeProcessor.java new file mode 100644 index 0000000000..74a9fc430e --- /dev/null +++ b/sca-java-1.x/branches/sca-java-0.91/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/ConstrainingTypeProcessor.java @@ -0,0 +1,205 @@ +/* + * 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.assembly.xml; + +import static javax.xml.stream.XMLStreamConstants.END_ELEMENT; +import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; + +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.assembly.AbstractContract; +import org.apache.tuscany.sca.assembly.AbstractProperty; +import org.apache.tuscany.sca.assembly.AbstractReference; +import org.apache.tuscany.sca.assembly.AbstractService; +import org.apache.tuscany.sca.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.ConstrainingType; +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.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.policy.PolicyFactory; + +/** + * A contrainingType content handler. + * + * @version $Rev$ $Date$ + */ +public class ConstrainingTypeProcessor extends BaseArtifactProcessor implements StAXArtifactProcessor<ConstrainingType> { + + /** + * Construct a new constrainingType processor. + * @param factory + * @param policyFactory + * @param extensionProcessor + */ + public ConstrainingTypeProcessor(AssemblyFactory factory, PolicyFactory policyFactory, StAXArtifactProcessor extensionProcessor) { + super(factory, policyFactory, extensionProcessor); + } + + public ConstrainingType read(XMLStreamReader reader) throws ContributionReadException { + ConstrainingType constrainingType = null; + AbstractService abstractService = null; + AbstractReference abstractReference = null; + AbstractProperty abstractProperty = null; + AbstractContract abstractContract = null; + QName name = null; + + try { + + // Read the constrainingType document + while (reader.hasNext()) { + int event = reader.getEventType(); + switch (event) { + + case START_ELEMENT: + name = reader.getName(); + + // Read a <constrainingType> + if (Constants.CONSTRAINING_TYPE_QNAME.equals(name)) { + constrainingType = assemblyFactory.createConstrainingType(); + constrainingType.setName(new QName(getString(reader, TARGET_NAMESPACE), getString(reader, NAME))); + readIntents(constrainingType, reader); + + } else if (Constants.SERVICE_QNAME.equals(name)) { + + // Read a <service> + abstractService = assemblyFactory.createAbstractService(); + abstractContract = abstractService; + abstractService.setName(getString(reader, Constants.NAME)); + constrainingType.getServices().add(abstractService); + readIntents(abstractService, reader); + + } else if (Constants.REFERENCE_QNAME.equals(name)) { + + // Read a <reference> + abstractReference = assemblyFactory.createAbstractReference(); + abstractContract = abstractReference; + abstractReference.setName(getString(reader, Constants.NAME)); + readMultiplicity(abstractReference, reader); + constrainingType.getReferences().add(abstractReference); + readIntents(abstractReference, reader); + + } else if (Constants.PROPERTY_QNAME.equals(name)) { + + // Read a <property> + abstractProperty = assemblyFactory.createAbstractProperty(); + readAbstractProperty(abstractProperty, reader); + constrainingType.getProperties().add(abstractProperty); + readIntents(abstractProperty, reader); + + } else if (OPERATION.equals(name)) { + + // Read an <operation> + Operation operation = assemblyFactory.createOperation(); + operation.setName(getString(reader, NAME)); + operation.setUnresolved(true); + readIntents(abstractContract, operation, reader); + + } else { + + // Read an extension element + Object extension = extensionProcessor.read(reader); + if (extension instanceof InterfaceContract) { + + // <service><interface> and <reference><interface> + abstractContract.setInterfaceContract((InterfaceContract)extension); + } + } + break; + + case END_ELEMENT: + name = reader.getName(); + + // Clear current state when reading reaching end element + if (SERVICE_QNAME.equals(name)) { + abstractService = null; + abstractContract = null; + } else if (REFERENCE_QNAME.equals(name)) { + abstractReference = null; + abstractContract = null; + } else if (PROPERTY_QNAME.equals(name)) { + abstractProperty = null; + } + break; + } + if (reader.hasNext()) { + reader.next(); + } + } + return constrainingType; + + } catch (XMLStreamException e) { + throw new ContributionReadException(e); + } + } + + public void write(ConstrainingType constrainingType, XMLStreamWriter writer) throws ContributionWriteException { + + try { + writeStartDocument(writer, CONSTRAINING_TYPE, + new XAttr(TARGET_NAMESPACE, constrainingType.getName().getNamespaceURI()), + new XAttr(NAME, constrainingType.getName().getLocalPart())); + + for (AbstractService service : constrainingType.getServices()) { + writeStart(writer, SERVICE, new XAttr(NAME, service.getName())); + extensionProcessor.write(service.getInterfaceContract(), writer); + writeEnd(writer); + } + + for (AbstractReference reference : constrainingType.getReferences()) { + writeStart(writer, REFERENCE, + new XAttr(NAME, reference.getName())); + extensionProcessor.write(reference.getInterfaceContract(), writer); + writeEnd(writer); + } + + for (AbstractProperty property : constrainingType.getProperties()) { + writeStart(writer, PROPERTY, new XAttr(NAME, property.getName())); + writeEnd(writer); + } + + writeEndDocument(writer); + + } catch (XMLStreamException e) { + throw new ContributionWriteException(e); + } + } + + public void resolve(ConstrainingType constrainingType, ModelResolver resolver) throws ContributionResolveException { + + // Resolve component type services and references + resolveAbstractContracts(constrainingType.getServices(), resolver); + resolveAbstractContracts(constrainingType.getReferences(), resolver); + } + + public QName getArtifactType() { + return CONSTRAINING_TYPE_QNAME; + } + + public Class<ConstrainingType> getModelType() { + return ConstrainingType.class; + } +} |