From 132aa8a77685ec92bc90c03f987650d275a7b639 Mon Sep 17 00:00:00 2001 From: lresende Date: Mon, 30 Sep 2013 06:59:11 +0000 Subject: 2.0.1 RC1 release tag git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1527464 13f79535-47bb-0310-9956-ffa450edef68 --- .../assembly/xml/DefaultBeanModelProcessor.java | 257 +++++++++++++++++++++ 1 file changed, 257 insertions(+) create mode 100644 sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/DefaultBeanModelProcessor.java (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/DefaultBeanModelProcessor.java') diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/DefaultBeanModelProcessor.java b/sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/DefaultBeanModelProcessor.java new file mode 100644 index 0000000000..e6e172a44b --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/DefaultBeanModelProcessor.java @@ -0,0 +1,257 @@ +/* + * 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 java.lang.reflect.Method; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +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.Base; +import org.apache.tuscany.sca.assembly.ComponentType; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.contribution.processor.ContributionReadException; +import org.apache.tuscany.sca.contribution.processor.ContributionResolveException; +import org.apache.tuscany.sca.contribution.processor.ContributionWriteException; +import org.apache.tuscany.sca.contribution.processor.ProcessorContext; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.core.FactoryExtensionPoint; +import org.apache.tuscany.sca.policy.PolicySubject; + +/** + * Default Model Processor for beans. + * + * @version $Rev$ $Date$ + */ +public class DefaultBeanModelProcessor extends BaseAssemblyProcessor implements StAXArtifactProcessor { + + private QName artifactType; + private Class modelClass; + private Object modelFactory; + private Method factoryMethod; + private Map setterMethods = new HashMap(); + private Map getterMethods = new HashMap(); + + public DefaultBeanModelProcessor(FactoryExtensionPoint modeFactories, + QName artifactType, + Class modelClass, + Object modelFactory) { + super(modeFactories, null); + this.artifactType = artifactType; + this.modelClass = modelClass; + this.modelFactory = modelFactory; + + // Introspect the factory class and bean model class + if (modelFactory != null) { + + // Find the model create method + for (Method method: modelFactory.getClass().getMethods()) { + if (method.getName().startsWith("create") && method.getReturnType() == modelClass) { + factoryMethod = method; + break; + } + } + } + + // Index the bean's setter methods + for (Method method: modelClass.getMethods()) { + Method getter; + String name = method.getName(); + if (name.startsWith("set") && name.length() > 3) { + + // Get the corresponding getter method + try { + getter = modelClass.getMethod("get" + name.substring(3)); + } catch (Exception e) { + getter = null; + continue; + } + + // Get the property name + name = name.substring(3); + if (name.length() > 1) { + if (!name.toUpperCase().equals(name)) { + name = name.substring(0, 1).toLowerCase() + name.substring(1); + } + } + } else { + continue; + } + + // Map an uppercase property name to a lowercase attribute name + if (name.toUpperCase().equals(name)) { + name = name.toLowerCase(); + } + + // Trim trailing _ from property names + if (name.endsWith("_")) { + name = name.substring(0, name.length()-1); + } + setterMethods.put(name, method); + getterMethods.put(name, getter); + } + } + + public T read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException, XMLStreamException { + + // Read an element + try { + + // Create a new instance of the model + Object model; + if (modelFactory != null) { + // Invoke the factory create method + model = factoryMethod.invoke(modelFactory); + } else { + // Invoke the model bean class default constructor + model = modelClass.newInstance(); + } + + // Initialize the bean properties with the attributes found in the + // XML element + for (int i = 0, n = reader.getAttributeCount(); i < n; i++) { + String attributeName = reader.getAttributeLocalName(i); + Method setter = setterMethods.get(attributeName); + if (setter != null) { + String value = null; + if (attributeName.equals("uri")){ + value = getURIString(reader, "uri"); + } else { + value = reader.getAttributeValue(i); + } + setter.invoke(model, value); + } + } + + // Read policies + policyProcessor.readPolicies(model, reader); + + // FIXME read extension elements + + // By default mark the model object unresolved + if (model instanceof Base) { + ((Base)model).setUnresolved(true); + } + + // Skip to end element + while (reader.hasNext()) { + if (reader.next() == END_ELEMENT && artifactType.equals(reader.getName())) { + break; + } + } + return (T) model; + + } catch (Exception e) { + ContributionReadException ce = new ContributionReadException(e); + error(context.getMonitor(), "ContributionReadException", reader, ce); + throw ce; + } + } + + public void write(T bean, XMLStreamWriter writer, ProcessorContext context) throws ContributionWriteException, XMLStreamException { + try { + // Write the bean properties as attributes + List attrs = new ArrayList(); + for (Map.Entry entry: getterMethods.entrySet()) { + if (entry.getValue().getReturnType() == String.class) { + String value = (String)entry.getValue().invoke(bean); + attrs.add(new XAttr(entry.getKey(), value)); + } + } + + // Write element + writeStart(writer, artifactType.getNamespaceURI(), artifactType.getLocalPart(), + policyProcessor.writePolicies(bean), new XAttr(null, attrs)); + + writeEnd(writer); + + } catch (Exception e) { + ContributionWriteException ce = new ContributionWriteException(e); + error(context.getMonitor(), "ContributionWriteException", writer, ce); + throw ce; + } + } + + public void resolve(T bean, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException { + + // Resolve and merge the component type associated with an + // implementation model + if (bean instanceof Implementation) { + Implementation implementation = (Implementation)bean; + String uri = implementation.getURI(); + if (uri != null) { + int d = uri.lastIndexOf('.'); + if (d != -1) { + uri = uri.substring(0, d) + ".componentType"; + + // Resolve the component type + ComponentType componentType = assemblyFactory.createComponentType(); + componentType.setURI(uri); + componentType.setUnresolved(true); + + componentType = resolver.resolveModel(ComponentType.class, componentType, context); + if (componentType != null && !componentType.isUnresolved()) { + + // We found a component type, merge it into the implementation model + implementation.getServices().addAll(componentType.getServices()); + implementation.getReferences().addAll(componentType.getReferences()); + implementation.getProperties().addAll(componentType.getProperties()); + + if (implementation instanceof PolicySubject && + componentType instanceof PolicySubject ) { + PolicySubject policiedImpl = (PolicySubject)implementation; + PolicySubject policiedCompType = (PolicySubject)componentType; + + if ( policiedImpl.getPolicySets() != null) { + policiedImpl.getPolicySets().addAll(policiedCompType.getPolicySets()); + } + if (policiedImpl.getRequiredIntents() != null) { + policiedImpl.getRequiredIntents().addAll(policiedCompType.getRequiredIntents()); + } + } + } + } + } + } + + // Mark the model resolved + if (bean instanceof Base) { + ((Base)bean).setUnresolved(false); + } + } + + public QName getArtifactType() { + return artifactType; + } + + public Class getModelType() { + return modelClass; + } + +} -- cgit v1.2.3