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Diffstat (limited to 'java/sca/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java')
| -rw-r--r-- | java/sca/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java | 1153 |
1 files changed, 0 insertions, 1153 deletions
diff --git a/java/sca/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java b/java/sca/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java deleted file mode 100644 index bd3134c5f2..0000000000 --- a/java/sca/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java +++ /dev/null @@ -1,1153 +0,0 @@ -/* - * 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.spring.introspect; - -import static javax.xml.stream.XMLStreamConstants.END_ELEMENT; -import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; - -import java.io.File; -import java.io.FileInputStream; -import java.io.IOException; -import java.net.MalformedURLException; -import java.net.URI; -import java.net.URL; -import java.util.ArrayList; -import java.util.Arrays; -import java.util.Collection; -import java.util.Collections; -import java.util.Enumeration; -import java.util.Iterator; -import java.util.List; -import java.util.Map; -import java.util.jar.Attributes; -import java.util.jar.JarEntry; -import java.util.jar.JarFile; -import java.util.jar.Manifest; - -import javax.xml.namespace.QName; -import javax.xml.stream.XMLInputFactory; -import javax.xml.stream.XMLStreamException; -import javax.xml.stream.XMLStreamReader; - -import org.apache.tuscany.sca.assembly.AssemblyFactory; -import org.apache.tuscany.sca.assembly.ComponentType; -import org.apache.tuscany.sca.assembly.Multiplicity; -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.assembly.xml.PolicySubjectProcessor; -import org.apache.tuscany.sca.contribution.Artifact; -import org.apache.tuscany.sca.contribution.ContributionFactory; -import org.apache.tuscany.sca.contribution.processor.ContributionReadException; -import org.apache.tuscany.sca.contribution.processor.ContributionResolveException; -import org.apache.tuscany.sca.contribution.processor.ProcessorContext; -import org.apache.tuscany.sca.contribution.resolver.ClassReference; -import org.apache.tuscany.sca.contribution.resolver.ModelResolver; -import org.apache.tuscany.sca.core.ExtensionPointRegistry; -import org.apache.tuscany.sca.core.FactoryExtensionPoint; -import org.apache.tuscany.sca.implementation.java.JavaConstructorImpl; -import org.apache.tuscany.sca.implementation.java.JavaElementImpl; -import org.apache.tuscany.sca.implementation.java.JavaImplementation; -import org.apache.tuscany.sca.implementation.java.JavaParameterImpl; -import org.apache.tuscany.sca.implementation.spring.SpringBeanElement; -import org.apache.tuscany.sca.implementation.spring.SpringConstructorArgElement; -import org.apache.tuscany.sca.implementation.spring.SpringImplementation; -import org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants; -import org.apache.tuscany.sca.implementation.spring.SpringPropertyElement; -import org.apache.tuscany.sca.implementation.spring.SpringSCAPropertyElement; -import org.apache.tuscany.sca.implementation.spring.SpringSCAReferenceElement; -import org.apache.tuscany.sca.implementation.spring.SpringSCAServiceElement; -import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException; -import org.apache.tuscany.sca.interfacedef.java.JavaInterface; -import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract; -import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory; -import org.apache.tuscany.sca.interfacedef.util.JavaXMLMapper; -import org.apache.tuscany.sca.monitor.Monitor; -import org.apache.tuscany.sca.monitor.Problem; -import org.apache.tuscany.sca.monitor.Problem.Severity; -import org.apache.tuscany.sca.policy.PolicyFactory; - -/** - * Introspects a Spring XML application-context configuration file to create <implementation-spring../> - * component type information. - * - * @version $Rev$ $Date$ - */ -public class SpringXMLComponentTypeLoader { - private ExtensionPointRegistry registry; - private XMLInputFactory xmlInputFactory; - private ContributionFactory contributionFactory; - private AssemblyFactory assemblyFactory; - private JavaInterfaceFactory javaFactory; - private PolicyFactory policyFactory; - private PolicySubjectProcessor policyProcessor; - private Monitor monitor; - private SpringBeanIntrospector beanIntrospector; - - public SpringXMLComponentTypeLoader(ExtensionPointRegistry registry, - Monitor monitor) { - super(); - this.registry = registry; - FactoryExtensionPoint factories = registry.getExtensionPoint(FactoryExtensionPoint.class); - this.assemblyFactory = factories.getFactory(AssemblyFactory.class); - this.javaFactory = factories.getFactory(JavaInterfaceFactory.class); - this.policyFactory = factories.getFactory(PolicyFactory.class); - this.policyProcessor = new PolicySubjectProcessor(policyFactory); - this.contributionFactory = factories.getFactory(ContributionFactory.class); - this.xmlInputFactory = factories.getFactory(XMLInputFactory.class); - 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 = monitor.createProblem(this.getClass().getName(), "impl-spring-validation-messages", Severity.ERROR, model, message, ex); - monitor.problem(problem); - } - } - - /** - * Report a error. - * - * @param problems - * @param message - * @param model - */ - private void error(String message, Object model, Object... messageParameters) { - if (monitor != null) { - Problem problem = monitor.createProblem(this.getClass().getName(), "impl-spring-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters); - monitor.problem(problem); - } - } - - protected Class<SpringImplementation> getImplementationClass() { - return SpringImplementation.class; - } - - /** - * Base method which loads the component type from the application-context attached to the - * Spring implementation - * - */ - public void load(SpringImplementation implementation, ModelResolver resolver, ProcessorContext context) throws ContributionReadException { - //System.out.println("Spring TypeLoader - load method start"); - ComponentType componentType = implementation.getComponentType(); - /* Check that there is a component type object already set */ - if (componentType == null) { - throw new ContributionReadException("SpringXMLLoader load: implementation has no ComponentType object"); - } - if (componentType.isUnresolved()) { - /* Fetch the location of the application-context file from the implementation */ - loadFromXML(implementation, resolver, context); - if (!componentType.isUnresolved()) - implementation.setUnresolved(false); - } // end if - //System.out.println("Spring TypeLoader - load method complete"); - } // end method load - - private Class<?> resolveClass(ModelResolver resolver, String className, ProcessorContext context) throws ClassNotFoundException { - ClassReference classReference = new ClassReference(className); - classReference = resolver.resolveModel(ClassReference.class, classReference, context); - if (classReference.isUnresolved()) { - throw new ClassNotFoundException(className); - } - Class<?> javaClass = classReference.getJavaClass(); - return javaClass; - } - - /** - * Method which fills out the component type for a Spring implementation by reading the - * Spring application-context.xml file. - * - * @param implementation SpringImplementation into which to load the component type information - * @throws ContributionReadException Failed to read the contribution - */ - private void loadFromXML(SpringImplementation implementation, ModelResolver resolver, ProcessorContext context) throws ContributionReadException { - XMLStreamReader reader; - List<SpringBeanElement> beans = new ArrayList<SpringBeanElement>(); - List<SpringSCAServiceElement> services = new ArrayList<SpringSCAServiceElement>(); - List<SpringSCAReferenceElement> references = new ArrayList<SpringSCAReferenceElement>(); - List<SpringSCAPropertyElement> scaproperties = new ArrayList<SpringSCAPropertyElement>(); - - URL resource; - List<URL> contextResources = new ArrayList<URL>(); - String contextPath = implementation.getLocation(); - - try { - resource = resolveLocation(resolver, contextPath, context); - contextResources = getApplicationContextResource(resource); - - implementation.setClassLoader(new ContextClassLoader(resolver, context)); - implementation.setResource(contextResources); - // The URI is used to uniquely identify the Implementation - implementation.setURI(resource.toString()); - - for (URL contextResource : contextResources) { - List<SpringBeanElement> appCxtBeans = new ArrayList<SpringBeanElement>(); - List<SpringSCAServiceElement> appCxtServices = new ArrayList<SpringSCAServiceElement>(); - List<SpringSCAReferenceElement> appCxtReferences = new ArrayList<SpringSCAReferenceElement>(); - List<SpringSCAPropertyElement> appCxtProperties = new ArrayList<SpringSCAPropertyElement>(); - reader = xmlInputFactory.createXMLStreamReader(contextResource.openStream()); - // Read the beans, services, references and properties for individual application context - readContextDefinition(resolver, reader, contextPath, appCxtBeans, appCxtServices, appCxtReferences, appCxtProperties, context); - // Validate the beans from individual application context for uniqueness - validateBeans(appCxtBeans, appCxtServices, appCxtReferences, appCxtProperties); - // Add all the validated beans to the generic list - beans.addAll(appCxtBeans); - services.addAll(appCxtServices); - references.addAll(appCxtReferences); - scaproperties.addAll(appCxtProperties); - reader.close(); - } - } catch (IOException e) { - throw new ContributionReadException(e); - } catch (XMLStreamException e) { - throw new ContributionReadException(e); - } - - /* At this point, the complete application-context.xml file has been read and its contents */ - /* stored in the lists of beans, services, references. These are now used to generate */ - /* the implied componentType for the application context */ - generateComponentType(implementation, resolver, beans, services, references, scaproperties, context); - - return; - } // end method loadFromXML - - private URL resolveLocation(ModelResolver resolver, String contextPath, ProcessorContext context) throws MalformedURLException, - ContributionReadException { - URL resource = null; - URI uri = URI.create(contextPath); - if (!uri.isAbsolute()) { - Artifact artifact = contributionFactory.createArtifact(); - artifact.setUnresolved(true); - artifact.setURI(contextPath); - artifact = resolver.resolveModel(Artifact.class, artifact, context); - if (!artifact.isUnresolved()) { - resource = new URL(artifact.getLocation()); - } else { - throw new ContributionReadException("Location cannot be resloved: " + contextPath); - } - } else { - resource = new URL(contextPath); - } - return resource; - } - - /** - * Method which returns the XMLStreamReader for the Spring application-context.xml file - * specified in the location attribute - */ - private XMLStreamReader getApplicationContextReader(ModelResolver resolver, String location, ProcessorContext context) throws ContributionReadException { - - try { - URL resource = getApplicationContextResource(resolveLocation(resolver, location, context)).get(0); - XMLStreamReader reader = - xmlInputFactory.createXMLStreamReader(resource.openStream()); - return reader; - } catch (IOException e) { - throw new ContributionReadException(e); - } catch (XMLStreamException e) { - throw new ContributionReadException(e); - } - } - - /** - * Method which reads the spring context definitions from Spring application-context.xml - * file and identifies the defined beans, properties, services and references - * @param context - */ - private void readContextDefinition(ModelResolver resolver, - XMLStreamReader reader, - String contextPath, - List<SpringBeanElement> beans, - List<SpringSCAServiceElement> services, - List<SpringSCAReferenceElement> references, - List<SpringSCAPropertyElement> scaproperties, ProcessorContext context) throws ContributionReadException { - - SpringBeanElement bean = null; - - try { - boolean completed = false; - while (!completed) { - switch (reader.next()) { - case START_ELEMENT: - QName qname = reader.getName(); - //System.out.println("Spring TypeLoader - found element with name: " + qname.toString()); - if (SpringImplementationConstants.IMPORT_ELEMENT.equals(qname)) { - //FIXME - put the sequence of code below which gets the ireader into a subsidiary method - String location = reader.getAttributeValue(null, "resource"); - if (location != null) { - // FIXME - need to find a right way of generating this path - String resourcePath = contextPath.substring(0, contextPath.lastIndexOf("/")+1) + location; - XMLStreamReader ireader = getApplicationContextReader(resolver, resourcePath, context); - // Read the context definition for the identified imported resource - readContextDefinition(resolver, ireader, contextPath, beans, services, references, scaproperties, context); - } - } else if (SpringImplementationConstants.SCA_SERVICE_ELEMENT.equals(qname)) { - // The value of the @name attribute of an <sca:service/> subelement of a <beans/> - // element MUST be unique amongst the <sca:service/> subelements of the <beans/> element. - if (!services.isEmpty() && (services.contains(reader.getAttributeValue(null, "name")))) - error("ScaServiceNameNotUnique", resolver); - - SpringSCAServiceElement service = - new SpringSCAServiceElement(reader.getAttributeValue(null, "name"), - reader.getAttributeValue(null, "target")); - if (reader.getAttributeValue(null, "type") != null) - service.setType(reader.getAttributeValue(null, "type")); - policyProcessor.readPolicies(service, reader); - services.add(service); - } else if (SpringImplementationConstants.SCA_REFERENCE_ELEMENT.equals(qname)) { - // The value of the @name attribute of an <sca:reference/> subelement of a <beans/> - // element MUST be unique amongst the @name attributes of the <sca:reference/> subelements, - // of the <beans/> element. - if (!references.isEmpty() && (references.contains(reader.getAttributeValue(null, "name")))) - error("ScaReferenceNameNotUnique", resolver); - - SpringSCAReferenceElement reference = - new SpringSCAReferenceElement(reader.getAttributeValue(null, "name"), - reader.getAttributeValue(null, "type")); - if (reader.getAttributeValue(null, "default") != null) - reference.setDefaultBean(reader.getAttributeValue(null, "default")); - policyProcessor.readPolicies(reference, reader); - references.add(reference); - } else if (SpringImplementationConstants.SCA_PROPERTY_ELEMENT.equals(qname)) { - // The value of the @name attribute of an <sca:property/> subelement of a <beans/> - // element MUST be unique amongst the @name attributes of the <sca:property/> subelements, - // of the <beans/> element. - if (!scaproperties.isEmpty() && (scaproperties.contains(reader.getAttributeValue(null, "name")))) - error("ScaPropertyNameNotUnique", resolver); - - SpringSCAPropertyElement scaproperty = - new SpringSCAPropertyElement(reader.getAttributeValue(null, "name"), reader - .getAttributeValue(null, "type")); - scaproperties.add(scaproperty); - } else if (SpringImplementationConstants.BEAN_ELEMENT.equals(qname)) { - bean = new SpringBeanElement(reader.getAttributeValue(null, "id"), - reader.getAttributeValue(null, "class")); - if (reader.getAttributeValue(null, "abstract") != null) - if (reader.getAttributeValue(null, "abstract").equals("true")) - bean.setAbstractBean(true); - if (reader.getAttributeValue(null, "parent") != null) - if (!reader.getAttributeValue(null, "parent").equals("")) - bean.setParentAttribute(true); - if (reader.getAttributeValue(null, "factory-bean") != null) - if (!reader.getAttributeValue(null, "factory-bean").equals("")) - bean.setFactoryBeanAttribute(true); - if (reader.getAttributeValue(null, "factory-method") != null) - if (!reader.getAttributeValue(null, "factory-method").equals("")) - bean.setFactoryMethodAttribute(true); - // Set the first name as bean name, when the @id attribute is absent. - if (reader.getAttributeValue(null, "id") == null) { - if (reader.getAttributeValue(null, "name") != null) { - String[] names = (reader.getAttributeValue(null, "name")).split(","); - bean.setId(names[0]); - } - } - beans.add(bean); - // Read the <bean> element and its child elements - readBeanDefinition(reader, bean, beans); - } // end if - break; - case END_ELEMENT: - if (SpringImplementationConstants.BEANS_ELEMENT.equals(reader.getName())) { - //System.out.println("Spring TypeLoader - finished read of context file"); - completed = true; - break; - } // end if - } // end switch - } // end while - } catch (XMLStreamException e) { - throw new ContributionReadException(e); - } - } - - - /** - * Method which reads the bean definitions from Spring application-context.xml file and identifies - * the defined beans, properties, services and references - */ - private void readBeanDefinition(XMLStreamReader reader, - SpringBeanElement bean, - List<SpringBeanElement> beans) throws ContributionReadException { - - SpringBeanElement innerbean = null; - SpringPropertyElement property = null; - SpringConstructorArgElement constructorArg = null; - - try { - boolean completed = false; - while (!completed) { - switch (reader.next()) { - case START_ELEMENT: - QName qname = reader.getName(); - if (SpringImplementationConstants.BEAN_ELEMENT.equals(qname)) { - innerbean = new SpringBeanElement(reader.getAttributeValue(null, "id"), reader - .getAttributeValue(null, "class")); - // Set the first name as bean name, when the @id attribute is absent. - if (reader.getAttributeValue(null, "id") == null) { - if (reader.getAttributeValue(null, "name") != null) { - String[] names = (reader.getAttributeValue(null, "name")).split(","); - innerbean.setId(names[0]); - } - } - innerbean.setInnerBean(true); - beans.add(innerbean); - readBeanDefinition(reader, innerbean, beans); - } else if (SpringImplementationConstants.PROPERTY_ELEMENT.equals(qname)) { - property = new SpringPropertyElement(reader.getAttributeValue(null, "name")); - if (reader.getAttributeValue(null, "ref") != null) - property.addRef(reader.getAttributeValue(null, "ref")); - bean.addProperty(property); - } else if (SpringImplementationConstants.CONSTRUCTORARG_ELEMENT.equals(qname)) { - constructorArg = new SpringConstructorArgElement(reader.getAttributeValue(null, "type")); - if (reader.getAttributeValue(null, "ref") != null) - constructorArg.addRef(reader.getAttributeValue(null, "ref")); - if (reader.getAttributeValue(null, "index") != null) - constructorArg.setIndex((new Integer(reader.getAttributeValue(null, "index"))).intValue()); - if (reader.getAttributeValue(null, "value") != null) - constructorArg.addValue(reader.getAttributeValue(null, "value")); - bean.addCustructorArgs(constructorArg); - } else if (SpringImplementationConstants.REF_ELEMENT.equals(qname)) { - String ref = reader.getAttributeValue(null, "bean"); - // Check if the parent element is a property - if (property != null) property.addRef(ref); - // Check if the parent element is a constructor-arg - if (constructorArg != null) constructorArg.addRef(ref); - } else if (SpringImplementationConstants.VALUE_ELEMENT.equals(qname)) { - String value = reader.getElementText(); - // Check if the parent element is a constructor-arg - if (constructorArg != null) constructorArg.addValue(value); - } else if (SpringImplementationConstants.LIST_ELEMENT.equals(qname) || - SpringImplementationConstants.SET_ELEMENT.equals(qname) || - SpringImplementationConstants.MAP_ELEMENT.equals(qname)) { - if (property != null) - readCollections(reader, bean, beans, property, null); - if (constructorArg != null) - readCollections(reader, bean, beans, null, constructorArg); - } // end if - break; - case END_ELEMENT: - if (SpringImplementationConstants.BEAN_ELEMENT.equals(reader.getName())) { - completed = true; - break; - } else if (SpringImplementationConstants.PROPERTY_ELEMENT.equals(reader.getName())) { - property = null; - } else if (SpringImplementationConstants.CONSTRUCTORARG_ELEMENT.equals(reader.getName())) { - constructorArg = null; - } // end if - } // end switch - } // end while - } catch (XMLStreamException e) { - throw new ContributionReadException(e); - } - } - - - /** - * Method which reads the collection elements from Spring application-context.xml file and identifies - * the defined beans, list, maps and sets - */ - private void readCollections(XMLStreamReader reader, - SpringBeanElement bean, - List<SpringBeanElement> beans, - SpringPropertyElement property, - SpringConstructorArgElement constructorArg) throws ContributionReadException { - - SpringBeanElement innerbean = null; - - try { - boolean completed = false; - while (!completed) { - switch (reader.next()) { - case START_ELEMENT: - QName qname = reader.getName(); - if (SpringImplementationConstants.BEAN_ELEMENT.equals(qname)) { - innerbean = new SpringBeanElement(reader.getAttributeValue(null, "id"), reader - .getAttributeValue(null, "class")); - // Set the first name as bean name, when the @id attribute is absent. - if (reader.getAttributeValue(null, "id") == null) - if (reader.getAttributeValue(null, "name") != null) { - String[] names = (reader.getAttributeValue(null, "name")).split(","); - innerbean.setId(names[0]); - } - innerbean.setInnerBean(true); - beans.add(innerbean); - readBeanDefinition(reader, innerbean, beans); - } else if (SpringImplementationConstants.REF_ELEMENT.equals(qname)) { - String ref = reader.getAttributeValue(null, "bean"); - if (property != null) property.addRef(ref); - if (constructorArg != null) constructorArg.addRef(ref); - } else if (SpringImplementationConstants.LIST_ELEMENT.equals(qname) || - SpringImplementationConstants.SET_ELEMENT.equals(qname) || - SpringImplementationConstants.MAP_ELEMENT.equals(qname)) { - if (property != null) - readCollections(reader, innerbean, beans, property, null); - if (constructorArg != null) - readCollections(reader, innerbean, beans, null, constructorArg); - } else if (SpringImplementationConstants.ENTRY_ELEMENT.equals(qname)) { - String keyRef = reader.getAttributeValue(null, "key-ref"); - String valueRef = reader.getAttributeValue(null, "value-ref"); - if (property != null) {property.addRef(keyRef); property.addRef(valueRef);} - if (constructorArg != null) {constructorArg.addRef(keyRef); constructorArg.addRef(valueRef);} - } // end if - break; - case END_ELEMENT: - if (SpringImplementationConstants.LIST_ELEMENT.equals(reader.getName())) { - completed = true; - break; - } else if (SpringImplementationConstants.SET_ELEMENT.equals(reader.getName())) { - completed = true; - break; - } else if (SpringImplementationConstants.MAP_ELEMENT.equals(reader.getName())) { - completed = true; - break; - } // end if - } // end switch - } // end while - } catch (XMLStreamException e) { - throw new ContributionReadException(e); - } - } - - /** - * Generates the Spring implementation component type from the configuration contained in the - * lists of beans, services, references and scaproperties derived from the application context - */ - private void generateComponentType(SpringImplementation implementation, - ModelResolver resolver, - List<SpringBeanElement> beans, - List<SpringSCAServiceElement> services, - List<SpringSCAReferenceElement> references, - List<SpringSCAPropertyElement> scaproperties, - ProcessorContext context) throws ContributionReadException { - /* - * 1. Each sca:service becomes a service in the component type - * 2. Each sca:reference becomes a reference in the component type - * 3. Each sca:property becomes a property in the component type - * 4. IF there are no explicit service elements, each bean becomes a service - * 5. Each bean property which is a reference not pointing at another bean in the - * application context becomes a reference unless it is pointing at one of the references - * 6. Each bean property which is not a reference and which is not pointing - * at another bean in the application context becomes a property in the component type - */ - - JavaImplementation javaImplementation = null; - ComponentType componentType = implementation.getComponentType(); - - try { - // Deal with the services first.... - Iterator<SpringSCAServiceElement> its = services.iterator(); - while (its.hasNext()) { - SpringSCAServiceElement serviceElement = its.next(); - Class<?> interfaze = resolveClass(resolver, serviceElement.getType(), context); - Service theService = createService(interfaze, serviceElement.getName()); - // Spring allows duplication of bean definitions in multiple context scenario, - // in such cases, the latest bean definition overrides the older ones, hence - // we will remove any older definition and use the latest. - Service duplicate = null; - for (Service service : componentType.getServices()) { - if (service.getName().equals(theService.getName())) - duplicate = service; - } - if (duplicate != null) - componentType.getServices().remove(duplicate); - - componentType.getServices().add(theService); - // Add this service to the Service / Bean map - String beanName = serviceElement.getTarget(); - for (SpringBeanElement beanElement : beans) { - if (beanName.equals(beanElement.getId())) { - if (isvalidBeanForService(beanElement)) { - // add the required intents and policySets for the service - theService.getRequiredIntents().addAll(serviceElement.getRequiredIntents()); - theService.getPolicySets().addAll(serviceElement.getPolicySets()); - implementation.setBeanForService(theService, beanElement); - } - } - } // end for - } // end while - - // Next handle the references - Iterator<SpringSCAReferenceElement> itr = references.iterator(); - while (itr.hasNext()) { - SpringSCAReferenceElement referenceElement = itr.next(); - Class<?> interfaze = resolveClass(resolver, referenceElement.getType(), context); - Reference theReference = createReference(interfaze, referenceElement.getName()); - // Override the older bean definition with the latest ones - // for the duplicate definitions found. - Reference duplicate = null; - for (Reference reference : componentType.getReferences()) { - if (reference.getName().equals(theReference.getName())) - duplicate = reference; - } - if (duplicate != null) - componentType.getReferences().remove(duplicate); - - // add the required intents and policySets for this reference - theReference.getRequiredIntents().addAll(referenceElement.getRequiredIntents()); - theReference.getPolicySets().addAll(referenceElement.getPolicySets()); - componentType.getReferences().add(theReference); - } // end while - - // Next handle the properties - Iterator<SpringSCAPropertyElement> itsp = scaproperties.iterator(); - while (itsp.hasNext()) { - SpringSCAPropertyElement scaproperty = itsp.next(); - // Create a component type property if the SCA property element has a name - // and a type declared... - if (scaproperty.getType() != null && scaproperty.getName() != null) { - Property theProperty = assemblyFactory.createProperty(); - theProperty.setName(scaproperty.getName()); - // Get the Java class and then an XSD element type for the property - Class<?> propType = Class.forName(scaproperty.getType()); - theProperty.setXSDType(JavaXMLMapper.getXMLType(propType)); - // Override the older bean definition with the latest ones - // for the duplicate definitions found. - Property duplicate = null; - for (Property property : componentType.getProperties()) { - if (property.getName().equals(theProperty.getName())) - duplicate = property; - } - if (duplicate != null) - componentType.getProperties().remove(duplicate); - - componentType.getProperties().add(theProperty); - // Remember the Java Class (ie the type) for this property - implementation.setPropertyClass(theProperty.getName(), propType); - } // end if - } // end while - - // Finally deal with the beans - Iterator<SpringBeanElement> itb; - // If there are no explicit service elements, then expose all the beans - if (services.isEmpty()) { - itb = beans.iterator(); - // Loop through all the beans found - while (itb.hasNext()) { - SpringBeanElement beanElement = itb.next(); - // If its not a valid bean for service, ignore it - if (!isvalidBeanForService(beanElement)) continue; - // Load the Spring bean class - Class<?> beanClass = resolveClass(resolver, beanElement.getClassName(), context); - // Introspect the bean - beanIntrospector = - new SpringBeanIntrospector(registry, beanElement.getCustructorArgs()); - ComponentType beanComponentType = assemblyFactory.createComponentType(); - javaImplementation = beanIntrospector.introspectBean(beanClass, beanComponentType); - // Set the service name as bean name - for (Service componentService : beanComponentType.getServices()) - componentService.setName(beanElement.getId()); - // Get the service interface defined by this Spring Bean and add to - // the component type of the Spring Assembly - List<Service> beanServices = beanComponentType.getServices(); - componentType.getServices().addAll(beanServices); - // Add these services to the Service / Bean map - for (Service beanService : beanServices) { - implementation.setBeanForService(beanService, beanElement); - } - } // end while - } // end if - - itb = beans.iterator(); - while (itb.hasNext()) { - SpringBeanElement beanElement = itb.next(); - // Ignore if the bean has no properties and constructor arguments - if (beanElement.getProperties().isEmpty() && beanElement.getCustructorArgs().isEmpty()) - continue; - - Class<?> beanClass = resolveClass(resolver, beanElement.getClassName(), context); - // Introspect the bean - beanIntrospector = - new SpringBeanIntrospector(registry, beanElement.getCustructorArgs()); - ComponentType beanComponentType = assemblyFactory.createComponentType(); - javaImplementation = beanIntrospector.introspectBean(beanClass, beanComponentType); - Map<String, JavaElementImpl> propertyMap = javaImplementation.getPropertyMembers(); - JavaConstructorImpl constructor = javaImplementation.getConstructor(); - // Get the references by this Spring Bean and add the unresolved ones to - // the component type of the Spring Assembly - List<Reference> beanReferences = beanComponentType.getReferences(); - List<Property> beanProperties = beanComponentType.getProperties(); - - Iterator<SpringPropertyElement> itp = beanElement.getProperties().iterator(); - while (itp.hasNext()) { - SpringPropertyElement propertyElement = itp.next(); - for (String propertyRef : propertyElement.getRefs()) { - if (propertyRefUnresolved(propertyRef, beans, references, scaproperties)) { - // This means an unresolved reference from the spring bean... - for (Reference reference : beanReferences) { - if (propertyElement.getName().equals(reference.getName())) { - // The name of the reference in this case is the string in - // the @ref attribute of the Spring property element, NOT the - // name of the field in the Spring bean.... - reference.setName(propertyRef); - componentType.getReferences().add(reference); - } // end if - } // end for - - // Store the unresolved references as unresolvedBeanRef in the Spring Implementation type - for (Property scaproperty : beanProperties) { - if (propertyElement.getName().equals(scaproperty.getName())) { - // The name of the reference in this case is the string in - // the @ref attribute of the Spring property element, NOT the - // name of the field in the Spring bean.... - Class<?> interfaze = resolveClass(resolver, (propertyMap.get(propertyElement.getName()).getType()).getName(), context); - Reference theReference = createReference(interfaze, propertyRef); - implementation.setUnresolvedBeanRef(propertyRef, theReference); - } // end if - } // end for - } // end if - } // end for - } // end while - - Iterator<SpringConstructorArgElement> itcr = beanElement.getCustructorArgs().iterator(); - while (itcr.hasNext()) { - SpringConstructorArgElement conArgElement = itcr.next(); - for (String constructorArgRef : conArgElement.getRefs()) { - if (propertyRefUnresolved(constructorArgRef, beans, references, scaproperties)) { - for (JavaParameterImpl parameter : constructor.getParameters()) { - String paramType = parameter.getType().getName(); - Class<?> interfaze = resolveClass(resolver, paramType, context); - // Create a component type reference/property if the constructor-arg element has a - // type attribute OR index attribute declared... - if ((conArgElement.getType() != null && paramType.equals(conArgElement.getType())) || - (conArgElement.getIndex() != -1 && (conArgElement.getIndex() == parameter.getIndex()))) - { - if (parameter.getClassifer().getName().equals("org.osoa.sca.annotations.Reference")) { - Reference theReference = createReference(interfaze, constructorArgRef); - componentType.getReferences().add(theReference); - } - if (parameter.getClassifer().getName().equals("org.osoa.sca.annotations.Property")) { - // Store the unresolved references as unresolvedBeanRef in the Spring Implementation type - // we might need to verify with the component definition later. - Reference theReference = createReference(interfaze, constructorArgRef); - implementation.setUnresolvedBeanRef(constructorArgRef, theReference); - } - } - } // end for - } // end if - } // end for - } // end while - - } // end while - - } catch (ClassNotFoundException e) { - // Means that either an interface class, property class or a bean was not found - throw new ContributionReadException(e); - } catch (InvalidInterfaceException e) { - throw new ContributionReadException(e); - } catch (ContributionResolveException e) { - - } // end try - - // If we get here, the Spring assembly component type is resolved - componentType.setUnresolved(false); - implementation.setComponentType(componentType); - return; - } // end method generateComponentType - - /* - * Determines whether a reference attribute of a Spring property element is resolved either - * by a bean in the application context or by an SCA reference element or by an SCA property - * element - * @param ref - a String containing the name of the reference - may be null - * @param beans - a List of SpringBean elements - * @param references - a List of SCA reference elements - * @return true if the property is not resolved, false if it is resolved - */ - private boolean propertyRefUnresolved(String ref, - List<SpringBeanElement> beans, - List<SpringSCAReferenceElement> references, - List<SpringSCAPropertyElement> scaproperties) { - boolean unresolved = true; - - if (ref != null) { - // Scan over the beans looking for a match - Iterator<SpringBeanElement> itb = beans.iterator(); - while (itb.hasNext()) { - SpringBeanElement beanElement = itb.next(); - // Does the bean name match the ref? - if (ref.equals(beanElement.getId())) { - unresolved = false; - break; - } // end if - } // end while - // Scan over the SCA reference elements looking for a match - if (unresolved) { - Iterator<SpringSCAReferenceElement> itr = references.iterator(); - while (itr.hasNext()) { - SpringSCAReferenceElement referenceElement = itr.next(); - if (ref.equals(referenceElement.getName())) { - unresolved = false; - break; - } // end if - } // end while - } // end if - // Scan over the SCA property elements looking for a match - if (unresolved) { - Iterator<SpringSCAPropertyElement> itsp = scaproperties.iterator(); - while (itsp.hasNext()) { - SpringSCAPropertyElement propertyElement = itsp.next(); - if (ref.equals(propertyElement.getName())) { - unresolved = false; - break; - } // end if - } // end while - } // end if - } else { - // In the case where ref = null, the property is not going to be a reference of any - // kind and can be ignored - unresolved = false; - } // end if - - return unresolved; - - } // end method propertyRefUnresolved - - /** - * Validates whether the <sca:service>, <sca:reference> and <sca:property> elements - * has unique names within the application context. - */ - private void validateBeans(List<SpringBeanElement> beans, - List<SpringSCAServiceElement> services, - List<SpringSCAReferenceElement> references, - List<SpringSCAPropertyElement> scaproperties) throws ContributionReadException { - - // The @target attribute of a <service/> subelement of a <beans/> element - // MUST have the value of the @name attribute of one of the <bean/> - // subelements of the <beans/> element. - Iterator<SpringSCAServiceElement> its = services.iterator(); - while (its.hasNext()) { - SpringSCAServiceElement serviceElement = its.next(); - boolean targetBeanExists = false; - Iterator<SpringBeanElement> itb = beans.iterator(); - while (itb.hasNext()) { - SpringBeanElement beanElement = itb.next(); - if (serviceElement.getTarget().equals(beanElement.getId())) - targetBeanExists = true; - } - if (!targetBeanExists) - error("TargetBeanDoesNotExist", beans); - } // end while - - // The value of the @name attribute of an <sca:reference/> subelement of a <beans/> - // element MUST be unique amongst the @name attributes of the <sca:property/> - // subelements and the <bean/> subelements of the <beans/> element. - // AND - // The @default attribute of a <sca:reference/> subelement of a <beans/> - // element MUST have the value of the @name attribute of one of the <bean/> - // subelements of the <beans/> element. - Iterator<SpringSCAReferenceElement> itr = references.iterator(); - while (itr.hasNext()) { - SpringSCAReferenceElement referenceElement = itr.next(); - boolean defaultBeanExists = true; - boolean isUniqueReferenceName = true; - Iterator<SpringBeanElement> itb = beans.iterator(); - while (itb.hasNext()) { - SpringBeanElement beanElement = itb.next(); - if (referenceElement.getDefaultBean() != null) - if (referenceElement.getDefaultBean().equals(beanElement.getId())) - defaultBeanExists = false; - if (referenceElement.getName().equals(beanElement.getId())) - isUniqueReferenceName = false; - } - Iterator<SpringSCAPropertyElement> itp = scaproperties.iterator(); - while (itp.hasNext()) { - SpringSCAPropertyElement propertyElement = itp.next(); - if (referenceElement.getName().equals(propertyElement.getName())) - isUniqueReferenceName = false; - } - if (!defaultBeanExists) - error("DefaultBeanDoesNotExist", beans); - if (!isUniqueReferenceName) - error("ScaReferenceNameNotUnique", beans); - } // end while - - // The value of the @name attribute of an <sca:property/> subelement of a <beans/> - // element MUST be unique amongst the @name attributes of the <sca:reference/> - // subelements and the <bean/> subelements of the <beans/> element. - Iterator<SpringSCAPropertyElement> itp = scaproperties.iterator(); - while (itp.hasNext()) { - SpringSCAPropertyElement propertyElement = itp.next(); - boolean isUniquePropertyName = true; - Iterator<SpringBeanElement> itb = beans.iterator(); - while (itb.hasNext()) { - SpringBeanElement beanElement = itb.next(); - if (propertyElement.getName().equals(beanElement.getId())) - isUniquePropertyName = false; - } - Iterator<SpringSCAReferenceElement> itrp = references.iterator(); - while (itrp.hasNext()) { - SpringSCAReferenceElement referenceElement = itrp.next(); - if (propertyElement.getName().equals(referenceElement.getName())) - isUniquePropertyName = false; - } - if (!isUniquePropertyName) - error("ScaPropertyNameNotUnique", beans); - } // end while - } - - /** - * Validates whether a bean definition is valid for exposing as service. - */ - private boolean isvalidBeanForService(SpringBeanElement beanElement) { - - if (beanElement.isInnerBean()) - return false; - if (beanElement.hasParentAttribute()) - return false; - if (beanElement.hasFactoryMethodAttribute()) - return false; - if (beanElement.hasFactoryBeanAttribute()) - return false; - if (beanElement.getClassName() == null) - return false; - if (beanElement.getClassName().startsWith("org.springframework")) - return false; - // return true otherwise - return true; - } - - - /** - * Gets hold of the application-context.xml file as a Spring resource - * @param locationAttr - the location attribute from the <implementation.spring../> element - * @param cl - the ClassLoader for the Spring implementation - */ - protected List<URL> getApplicationContextResource(URL url) - throws ContributionReadException { - File manifestFile = null; - File appXmlFile; - File appXmlFolder; - File locationFile = null; - List<URL> appCtxResources = new ArrayList<URL>(); - - if (url != null) { - String path = url.getPath(); - locationFile = new File(path); - } else { - throw new ContributionReadException("SpringXMLComponentTypeLoader getApplicationContextResource: " - + "unable to find resource file " + url); - } - - if (locationFile.isDirectory()) { - try { - manifestFile = new File(locationFile, "META-INF"+ File.separator +"MANIFEST.MF"); - if (manifestFile.exists()) { - Manifest mf = new Manifest(new FileInputStream(manifestFile)); - Attributes mainAttrs = mf.getMainAttributes(); - String appCtxPath = mainAttrs.getValue("Spring-Context"); - if (appCtxPath != null) { - String[] cxtPaths = appCtxPath.split(";"); - for (String path : cxtPaths) { - appXmlFile = new File(locationFile, path.trim()); - if (appXmlFile.exists()) { - appCtxResources.add(appXmlFile.toURI().toURL()); - } - } - return appCtxResources; - } - } - // No MANIFEST.MF file OR no manifest-specified Spring context , then read all the - // xml files available in the META-INF/spring folder. - appXmlFolder = new File(locationFile, "META-INF" + File.separator + "spring"); - if (appXmlFolder.exists()) { - File[] files = appXmlFolder.listFiles(); - for (File appFile: files) { - if (appFile.getName().endsWith(".xml")) { - appCtxResources.add(appFile.toURI().toURL()); - } - } - return appCtxResources; - } - } catch (IOException e) { - throw new ContributionReadException("Error reading manifest " + manifestFile); - } - } else { - if (locationFile.isFile() && locationFile.getName().endsWith(".jar")) { - try { - JarFile jf = new JarFile(locationFile); - JarEntry je; - Manifest mf = jf.getManifest(); - if (mf != null) { - Attributes mainAttrs = mf.getMainAttributes(); - String appCtxPath = mainAttrs.getValue("Spring-Context"); - if (appCtxPath != null) { - String[] cxtPaths = appCtxPath.split(";"); - for (String path : cxtPaths) { - je = jf.getJarEntry(path.trim()); - if (je != null) - appCtxResources.add(new URL("jar:" + locationFile.toURI().toURL() + "!/" + appCtxPath)); - } - return appCtxResources; - } - } - // No MANIFEST.MF file OR no manifest-specified Spring context , then read all the - // .xml files available in the META-INF/spring folder. - Enumeration<JarEntry> entries = jf.entries(); - while (entries.hasMoreElements()) { - je = entries.nextElement(); - if (je.getName().startsWith("META-INF/spring/") && je.getName().endsWith(".xml")) { - appCtxResources.add(new URL("jar:" + locationFile.toURI().toURL() + "!/" + je.getName())); - } - } - return appCtxResources; - } catch (IOException e) { - // TODO: create a more appropriate exception type - throw new ContributionReadException("SpringXMLComponentTypeLoader getApplicationContextResource: " - + " IO exception reading context file.", e); - } - } - else { - if (locationFile.getName().endsWith(".xml")) { - appCtxResources.add(url); - return appCtxResources; - } - else { - // Deal with the directory inside a jar file, in case the contribution itself is a JAR file. - try { - if (locationFile.getPath().indexOf(".jar") > 0) { - String jarPath = url.getPath().substring(5, url.getPath().indexOf("!")); - JarFile jf = new JarFile(jarPath); - JarEntry je = jf.getJarEntry(url.getPath().substring(url.getPath().indexOf("!/")+2) - + "/" + "META-INF" + "/" + "MANIFEST.MF"); - if (je != null) { - Manifest mf = new Manifest(jf.getInputStream(je)); - Attributes mainAttrs = mf.getMainAttributes(); - String appCtxPath = mainAttrs.getValue("Spring-Context"); - if (appCtxPath != null) { - String[] cxtPaths = appCtxPath.split(";"); - for (String path : cxtPaths) { - je = jf.getJarEntry(url.getPath().substring(url.getPath().indexOf("!/")+2) + "/" + path.trim()); - if (je != null) { - appCtxResources.add(new URL("jar:" + url.getPath() + "/" + path.trim())); - } - } - return appCtxResources; - } - } - // No MANIFEST.MF file OR no manifest-specified Spring context , then read all the - // .xml files available in the META-INF/spring folder. - Enumeration<JarEntry> entries = jf.entries(); - while (entries.hasMoreElements()) { - je = entries.nextElement(); - if (je.getName().startsWith("META-INF/spring/") && je.getName().endsWith(".xml")) { - appCtxResources.add(new URL("jar:" + url.getPath() + "/" + je.getName())); - } - } - return appCtxResources; - } - } catch (IOException e) { - throw new ContributionReadException("Error reading manifest " + manifestFile); - } - } - } - } - - throw new ContributionReadException("SpringXMLComponentTypeLoader getApplicationContextResource: " - + "unable to read resource file " + url); - } // end method getApplicationContextResource - - /** - * Creates a Service for the component type based on its name and Java interface - */ - public Service createService(Class<?> interfaze, String name) throws InvalidInterfaceException { - Service service = assemblyFactory.createService(); - JavaInterfaceContract interfaceContract = javaFactory.createJavaInterfaceContract(); - service.setInterfaceContract(interfaceContract); - - // Set the name for the service - service.setName(name); - - // Set the call interface and, if present, the callback interface - JavaInterface callInterface = javaFactory.createJavaInterface(interfaze); - service.getInterfaceContract().setInterface(callInterface); - if (callInterface.getCallbackClass() != null) { - JavaInterface callbackInterface = javaFactory.createJavaInterface(callInterface.getCallbackClass()); - service.getInterfaceContract().setCallbackInterface(callbackInterface); - } - return service; - } // end method createService - - /** - * Creates a Reference for the component type based on its name and Java interface - */ - private org.apache.tuscany.sca.assembly.Reference createReference(Class<?> interfaze, String name) - throws InvalidInterfaceException { - org.apache.tuscany.sca.assembly.Reference reference = assemblyFactory.createReference(); - JavaInterfaceContract interfaceContract = javaFactory.createJavaInterfaceContract(); - reference.setInterfaceContract(interfaceContract); - - // Set the name of the reference to the supplied name and the multiplicity of the reference - // to 1..1 - for Spring implementations, this is the only multiplicity supported - reference.setName(name); - reference.setMultiplicity(Multiplicity.ONE_ONE); - - // Set the call interface and, if present, the callback interface - JavaInterface callInterface = javaFactory.createJavaInterface(interfaze); - reference.getInterfaceContract().setInterface(callInterface); - if (callInterface.getCallbackClass() != null) { - JavaInterface callbackInterface = javaFactory.createJavaInterface(callInterface.getCallbackClass()); - reference.getInterfaceContract().setCallbackInterface(callbackInterface); - } - - return reference; - } - - private class ContextClassLoader extends ClassLoader { - public ContextClassLoader(ModelResolver resolver, ProcessorContext context) { - super(); - this.resolver = resolver; - this.context = context; - } - - private ModelResolver resolver; - private ProcessorContext context; - - @Override - protected Class<?> findClass(String name) throws ClassNotFoundException { - return SpringXMLComponentTypeLoader.this.resolveClass(resolver, name, context); - } - - @Override - protected URL findResource(String name) { - try { - return resolveLocation(resolver, name, context); - } catch (Exception e) { - return null; - } - } - - @Override - protected Enumeration<URL> findResources(String name) throws IOException { - URL url = findResource(name); - if (url != null) { - return Collections.enumeration(Arrays.asList(url)); - } else { - Collection<URL> urls = Collections.emptyList(); - return Collections.enumeration(urls); - } - } - } -} // end class SpringXMLComponentTypeLoader
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