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Diffstat (limited to 'branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/ComponentTypeProcessor.java')
-rw-r--r-- | branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/ComponentTypeProcessor.java | 355 |
1 files changed, 355 insertions, 0 deletions
diff --git a/branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/ComponentTypeProcessor.java b/branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/ComponentTypeProcessor.java new file mode 100644 index 0000000000..760e202ed2 --- /dev/null +++ b/branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/ComponentTypeProcessor.java @@ -0,0 +1,355 @@ +/*
+ * 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.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Callback;
+import org.apache.tuscany.sca.assembly.ComponentType;
+import org.apache.tuscany.sca.assembly.Contract;
+import org.apache.tuscany.sca.assembly.Extensible;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+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.interfacedef.impl.OperationImpl;
+import org.apache.tuscany.sca.policy.IntentAttachPoint;
+import org.apache.tuscany.sca.policy.PolicyFactory;
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+import org.w3c.dom.Document;
+
+/**
+ * A componentType processor.
+ *
+ * @version $Rev: 637192 $ $Date: 2008-03-14 11:13:01 -0700 (Fri, 14 Mar 2008) $
+ */
+public class ComponentTypeProcessor extends BaseAssemblyProcessor implements StAXArtifactProcessor<ComponentType> {
+
+ /**
+ * Constructs a new componentType processor.
+ * @param factory
+ * @param policyFactory
+ * @param registry
+ */
+ public ComponentTypeProcessor(AssemblyFactory factory, PolicyFactory policyFactory, StAXArtifactProcessor extensionProcessor) {
+ super(factory, policyFactory, extensionProcessor);
+ }
+
+ public ComponentType read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+ ComponentType componentType = null;
+ Service service = null;
+ Reference reference = null;
+ Contract contract = null;
+ Property property = null;
+ Callback callback = null;
+ QName name = null;
+
+ // Read the componentType document
+ while (reader.hasNext()) {
+ int event = reader.getEventType();
+ switch (event) {
+ case START_ELEMENT:
+ name = reader.getName();
+
+ if (Constants.COMPONENT_TYPE_QNAME.equals(name)) {
+
+ // Read a <componentType>
+ componentType = assemblyFactory.createComponentType();
+ componentType.setConstrainingType(readConstrainingType(reader));
+
+ } else if (Constants.SERVICE_QNAME.equals(name)) {
+
+ // Read a <service>
+ service = assemblyFactory.createService();
+ contract = service;
+ service.setName(getString(reader, Constants.NAME));
+ componentType.getServices().add(service);
+ policyProcessor.readPolicies(service, reader);
+
+ } else if (Constants.REFERENCE_QNAME.equals(name)) {
+
+ // Read a <reference>
+ reference = assemblyFactory.createReference();
+ contract = reference;
+ reference.setName(getString(reader, Constants.NAME));
+ reference.setWiredByImpl(getBoolean(reader, Constants.WIRED_BY_IMPL));
+ readMultiplicity(reference, reader);
+ readTargets(reference, reader);
+ componentType.getReferences().add(reference);
+ policyProcessor.readPolicies(reference, reader);
+
+ } else if (Constants.PROPERTY_QNAME.equals(name)) {
+
+ // Read a <property>
+ property = assemblyFactory.createProperty();
+ readAbstractProperty(property, reader);
+ policyProcessor.readPolicies(property, reader);
+
+ // Read the property value
+ Document value = readPropertyValue(property.getXSDElement(), property.getXSDType(), reader);
+ property.setValue(value);
+
+ componentType.getProperties().add(property);
+
+ } else if (Constants.IMPLEMENTATION_QNAME.equals(name)) {
+
+ // Read an <implementation> element
+ policyProcessor.readPolicies(componentType, reader);
+
+ } else if (Constants.CALLBACK_QNAME.equals(name)) {
+
+ // Read a <callback>
+ callback = assemblyFactory.createCallback();
+ contract.setCallback(callback);
+ policyProcessor.readPolicies(callback, reader);
+
+ } else if (OPERATION.equals(name)) {
+
+ // Read an <operation>
+ Operation operation = new OperationImpl();
+ operation.setName(getString(reader, NAME));
+ operation.setUnresolved(true);
+ if (callback != null) {
+ policyProcessor.readPolicies(callback, operation, reader);
+ } else {
+ policyProcessor.readPolicies(contract, operation, reader);
+ }
+ } else {
+
+ // Read an extension element
+ Object extension = extensionProcessor.read(reader);
+ if (extension != null) {
+ if (extension instanceof InterfaceContract) {
+
+ // <service><interface> and <reference><interface>
+ contract.setInterfaceContract((InterfaceContract)extension);
+
+ } else if (extension instanceof Binding) {
+
+ // <service><binding> and <reference><binding>
+ if (callback != null) {
+ callback.getBindings().add((Binding)extension);
+ } else {
+ contract.getBindings().add((Binding)extension);
+ }
+ } else {
+
+ // Add the extension element to the current element
+ if (callback != null) {
+ callback.getExtensions().add(extension);
+ } else if (contract != null) {
+ contract.getExtensions().add(extension);
+ } else if (property != null) {
+ property.getExtensions().add(extension);
+ } else {
+ if (componentType instanceof Extensible) {
+ ((Extensible)componentType).getExtensions().add(extension);
+ }
+ }
+ }
+ }
+ }
+ break;
+
+ case END_ELEMENT:
+ name = reader.getName();
+
+ // Clear current state when reading reaching end element
+ if (SERVICE_QNAME.equals(name)) {
+ service = null;
+ contract = null;
+ } else if (REFERENCE_QNAME.equals(name)) {
+ reference = null;
+ contract = null;
+ } else if (PROPERTY_QNAME.equals(name)) {
+ property = null;
+ } else if (CALLBACK_QNAME.equals(name)) {
+ callback = null;
+ }
+ break;
+ }
+
+ // Read the next element
+ if (reader.hasNext()) {
+ reader.next();
+ }
+ }
+ return componentType;
+ }
+
+ public void write(ComponentType componentType, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+
+ // Write <componentType> element
+ writeStartDocument(writer, COMPONENT_TYPE,
+ writeConstrainingType(componentType));
+
+ // Write <service> elements
+ for (Service service : componentType.getServices()) {
+ writeStart(writer, SERVICE, new XAttr(NAME, service.getName()),
+ policyProcessor.writePolicies(service));
+
+ if (service.getInterfaceContract() != null) {
+ extensionProcessor.write(service.getInterfaceContract(), writer);
+ }
+
+ for (Binding binding: service.getBindings()) {
+ extensionProcessor.write(binding, writer);
+ }
+
+ if (service.getCallback() != null) {
+ Callback callback = service.getCallback();
+ writeStart(writer, CALLBACK, policyProcessor.writePolicies(callback));
+
+ for (Binding binding: callback.getBindings()) {
+ extensionProcessor.write(binding, writer);
+ }
+ for (Object extension: callback.getExtensions()) {
+ extensionProcessor.write(extension, writer);
+ }
+
+ writeEnd(writer);
+ }
+
+ for (Object extension: service.getExtensions()) {
+ extensionProcessor.write(extension, writer);
+ }
+
+ writeEnd(writer);
+ }
+
+ // Write <reference> elements
+ for (Reference reference : componentType.getReferences()) {
+
+ writeStart(writer, REFERENCE,
+ new XAttr(NAME, reference.getName()),
+ writeTargets(reference),
+ policyProcessor.writePolicies(reference));
+
+ extensionProcessor.write(reference.getInterfaceContract(), writer);
+
+ for (Binding binding: reference.getBindings()) {
+ extensionProcessor.write(binding, writer);
+ }
+
+ if (reference.getCallback() != null) {
+ Callback callback = reference.getCallback();
+ writeStart(writer, CALLBACK,
+ policyProcessor.writePolicies(callback));
+
+ for (Binding binding: callback.getBindings()) {
+ extensionProcessor.write(binding, writer);
+ }
+ for (Object extension: callback.getExtensions()) {
+ extensionProcessor.write(extension, writer);
+ }
+
+ writeEnd(writer);
+ }
+
+ for (Object extension: reference.getExtensions()) {
+ extensionProcessor.write(extension, writer);
+ }
+
+ writeEnd(writer);
+ }
+
+ // Write <property> elements
+ for (Property property : componentType.getProperties()) {
+ writeStart(writer,
+ PROPERTY,
+ new XAttr(NAME, property.getName()),
+ new XAttr(MUST_SUPPLY, property.isMustSupply()),
+ new XAttr(MANY, property.isMany()),
+ new XAttr(TYPE, property.getXSDType()),
+ new XAttr(ELEMENT, property.getXSDElement()),
+ policyProcessor.writePolicies(property));
+
+ // Write property value
+ writePropertyValue(property.getValue(), property.getXSDElement(), property.getXSDType(), writer);
+
+ // Write extensions
+ for (Object extension : property.getExtensions()) {
+ extensionProcessor.write(extension, writer);
+ }
+
+ writeEnd(writer);
+ }
+
+ // Write extension elements
+ if (componentType instanceof Extensible) {
+ for (Object extension: ((Extensible)componentType).getExtensions()) {
+ extensionProcessor.write(extension, writer);
+ }
+ }
+
+ // Write <implementation> elements if the componentType has
+ // any intents or policySets
+ boolean writeImplementation = false;
+ if (componentType instanceof IntentAttachPoint) {
+ if (!((IntentAttachPoint)componentType).getRequiredIntents().isEmpty()) {
+ writeImplementation = true;
+ }
+ }
+ if (componentType instanceof PolicySetAttachPoint) {
+ if (!((PolicySetAttachPoint)componentType).getPolicySets().isEmpty()) {
+ writeImplementation = true;
+ }
+ }
+ if (writeImplementation) {
+ writeStart(writer, IMPLEMENTATION,
+ policyProcessor.writePolicies(componentType));
+ }
+
+ writeEndDocument(writer);
+ }
+
+ public void resolve(ComponentType componentType, ModelResolver resolver) throws ContributionResolveException {
+
+ // Resolve component type services and references
+ resolveContracts(componentType.getServices(), resolver);
+ resolveContracts(componentType.getReferences(), resolver);
+ if ( componentType instanceof PolicySetAttachPoint ) {
+ resolveIntents(((PolicySetAttachPoint)componentType).getRequiredIntents(), resolver);
+ resolvePolicySets(((PolicySetAttachPoint)componentType).getPolicySets(), resolver);
+ }
+ }
+
+ public QName getArtifactType() {
+ return COMPONENT_TYPE_QNAME;
+ }
+
+ public Class<ComponentType> getModelType() {
+ return ComponentType.class;
+ }
+}
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