diff options
Diffstat (limited to 'tags/java/sca/2.0-M3-RC4/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java')
| -rw-r--r-- | tags/java/sca/2.0-M3-RC4/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java | 781 |
1 files changed, 781 insertions, 0 deletions
diff --git a/tags/java/sca/2.0-M3-RC4/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java b/tags/java/sca/2.0-M3-RC4/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java new file mode 100644 index 0000000000..b880e7ba2a --- /dev/null +++ b/tags/java/sca/2.0-M3-RC4/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java @@ -0,0 +1,781 @@ +/*
+ * 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.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.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.resolver.ClassReference;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+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.policy.PolicyFactory;
+
+/**
+ * Introspects a Spring XML application-context configuration file to create <implementation-spring../>
+ * component type information.
+ *
+ *
+ * @version $Rev: 512919 $ $Date: 2007-02-28 19:32:56 +0000 (Wed, 28 Feb 2007) $
+ */
+public class SpringXMLComponentTypeLoader {
+
+ private XMLInputFactory xmlInputFactory;
+ private ContributionFactory contributionFactory;
+ private AssemblyFactory assemblyFactory;
+ private JavaInterfaceFactory javaFactory;
+ private PolicyFactory policyFactory;
+
+ private SpringBeanIntrospector beanIntrospector;
+
+ public SpringXMLComponentTypeLoader(FactoryExtensionPoint factories,
+ AssemblyFactory assemblyFactory,
+ JavaInterfaceFactory javaFactory,
+ PolicyFactory policyFactory) {
+ super();
+ this.assemblyFactory = assemblyFactory;
+ this.javaFactory = javaFactory;
+ this.policyFactory = policyFactory;
+ this.contributionFactory = factories.getFactory(ContributionFactory.class);
+ this.xmlInputFactory = factories.getFactory(XMLInputFactory.class);
+ }
+
+ 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) 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);
+ 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) throws ClassNotFoundException {
+ ClassReference classReference = new ClassReference(className);
+ classReference = resolver.resolveModel(ClassReference.class, classReference);
+ 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) 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;
+
+ String contextPath = implementation.getLocation();
+
+ try {
+ resource = resolveLocation(resolver, contextPath);
+ resource = getApplicationContextResource(resource);
+ implementation.setResource(resource);
+ // The URI is used to uniquely identify the Implementation
+ implementation.setURI(resource.toString());
+ reader = xmlInputFactory.createXMLStreamReader(resource.openStream());
+
+ // System.out.println("Spring TypeLoader - starting to read context file");
+ readContextDefinition(resolver, reader, contextPath, beans, services, references, scaproperties);
+
+ } 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);
+
+ return;
+ } // end method loadFromXML
+
+ private URL resolveLocation(ModelResolver resolver, String contextPath) 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);
+ 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) throws ContributionReadException {
+
+ try {
+ URL resource = getApplicationContextResource(resolveLocation(resolver, location));
+ 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
+ */
+ private void readContextDefinition(ModelResolver resolver,
+ XMLStreamReader reader,
+ String contextPath,
+ List<SpringBeanElement> beans,
+ List<SpringSCAServiceElement> services,
+ List<SpringSCAReferenceElement> references,
+ List<SpringSCAPropertyElement> scaproperties) 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);
+ // Read the context definition for the identified imported resource
+ readContextDefinition(resolver, ireader, contextPath, beans, services, references, scaproperties);
+ }
+ } else if (SpringImplementationConstants.SERVICE_ELEMENT.equals(qname)) {
+ SpringSCAServiceElement service =
+ new SpringSCAServiceElement(reader.getAttributeValue(null, "name"), reader
+ .getAttributeValue(null, "type"), reader.getAttributeValue(null, "target"));
+ services.add(service);
+ } else if (SpringImplementationConstants.REFERENCE_ELEMENT.equals(qname)) {
+ SpringSCAReferenceElement reference =
+ new SpringSCAReferenceElement(reader.getAttributeValue(null, "name"), reader
+ .getAttributeValue(null, "type"));
+ references.add(reference);
+ } else if (SpringImplementationConstants.SCAPROPERTY_ELEMENT.equals(qname)) {
+ 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"));
+ beans.add(bean);
+ // Read the <bean> element and its child elements
+ readBeanDefinition(resolver, reader, contextPath, bean, beans, services, references, scaproperties);
+ } // 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(ModelResolver resolver,
+ XMLStreamReader reader,
+ String contextPath,
+ SpringBeanElement bean,
+ List<SpringBeanElement> beans,
+ List<SpringSCAServiceElement> services,
+ List<SpringSCAReferenceElement> references,
+ List<SpringSCAPropertyElement> scaproperties) throws ContributionReadException {
+
+ SpringBeanElement innerbean = null;
+ SpringPropertyElement property = null;
+ SpringConstructorArgElement constructorArg = null;
+ int autoConstructorIndex = -1;
+
+ 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"));
+ innerbean.setInnerBean(true);
+ beans.add(innerbean);
+ readBeanDefinition(resolver, reader, contextPath, innerbean, beans, services, references, scaproperties);
+ } else if (SpringImplementationConstants.PROPERTY_ELEMENT.equals(qname)) {
+ property = new SpringPropertyElement(reader.getAttributeValue(null, "name"), reader
+ .getAttributeValue(null, "ref"));
+ bean.addProperty(property);
+ } else if (SpringImplementationConstants.CONSTRUCTORARG_ELEMENT.equals(qname)) {
+ constructorArg = new SpringConstructorArgElement(reader.getAttributeValue(null, "ref"),
+ reader.getAttributeValue(null, "type"));
+ autoConstructorIndex++;
+ constructorArg.setAutoIndex(autoConstructorIndex);
+ if (reader.getAttributeValue(null, "index") != null)
+ constructorArg.setIndex((new Integer(reader.getAttributeValue(null, "index"))).intValue());
+ if (reader.getAttributeValue(null, "value") != null) {
+ String value = reader.getAttributeValue(null, "value");
+ constructorArg.addValue(value);
+ if ((value.indexOf(".xml") != -1)) {
+ if ((bean.getClassName().indexOf(".ClassPathXmlApplicationContext") != -1) ||
+ (bean.getClassName().indexOf(".FileSystemXmlApplicationContext") != -1)) {
+ XMLStreamReader creader = getApplicationContextReader(resolver, value);
+ // Read the context definition for the constructor-arg resources
+ readContextDefinition(resolver, creader, contextPath, beans, services, references, scaproperties);
+ }
+ }
+ }
+ 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.setRef(ref);
+ // Check if the parent element is a constructor-arg
+ if (constructorArg != null) constructorArg.setRef(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);
+ // Identify the XML resource specified for the constructor-arg element
+ if ((value.indexOf(".xml") != -1)) {
+ if ((bean.getClassName().indexOf(".ClassPathXmlApplicationContext") != -1) ||
+ (bean.getClassName().indexOf(".FileSystemXmlApplicationContext") != -1)) {
+ XMLStreamReader creader = getApplicationContextReader(resolver, value);
+ // Read the context definition for the constructor-arg resources
+ readContextDefinition(resolver, creader, contextPath, beans, services, references, scaproperties);
+ }
+ }
+ }
+ } // 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);
+ }
+ }
+
+ /**
+ * 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) 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());
+ Service theService = createService(interfaze, serviceElement.getName());
+ 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())) {
+ 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());
+ Reference theReference = createReference(interfaze, referenceElement.getName());
+ 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));
+ 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 a innerBean, ignore it
+ if (beanElement.isInnerBean()) continue;
+ // Load the Spring bean class
+ Class<?> beanClass = resolveClass(resolver, beanElement.getClassName());
+ // Introspect the bean
+ beanIntrospector =
+ new SpringBeanIntrospector(assemblyFactory, javaFactory, policyFactory, beanElement.getCustructorArgs());
+ ComponentType beanComponentType = assemblyFactory.createComponentType();
+ javaImplementation = beanIntrospector.introspectBean(beanClass, beanComponentType);
+ // 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());
+ // Introspect the bean
+ beanIntrospector =
+ new SpringBeanIntrospector(assemblyFactory, javaFactory, policyFactory, 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();
+ if (propertyRefUnresolved(propertyElement.getRef(), 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(propertyElement.getRef());
+ 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());
+ Reference theReference = createReference(interfaze, propertyElement.getRef());
+ implementation.setUnresolvedBeanRef(propertyElement.getRef(), theReference);
+ } // end if
+ } // end for
+ } // end if
+ } // end while
+
+ Iterator<SpringConstructorArgElement> itcr = beanElement.getCustructorArgs().iterator();
+ while (itcr.hasNext()) {
+ SpringConstructorArgElement conArgElement = itcr.next();
+ if (propertyRefUnresolved(conArgElement.getRef(), beans, references, scaproperties)) {
+ for (JavaParameterImpl parameter : constructor.getParameters()) {
+ String paramType = parameter.getType().getName();
+ Class<?> interfaze = resolveClass(resolver, paramType);
+ // 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())) ||
+ (conArgElement.getAutoIndex() == parameter.getIndex()))
+ {
+ if (parameter.getClassifer().getName().equals("org.osoa.sca.annotations.Reference")) {
+ Reference theReference = createReference(interfaze, conArgElement.getRef());
+ 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, conArgElement.getRef());
+ implementation.setUnresolvedBeanRef(conArgElement.getRef(), theReference);
+ }
+ }
+ } // end for
+ } // end if
+ } // 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
+
+ /**
+ * 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 URL getApplicationContextResource(URL url)
+ throws ContributionReadException {
+ File manifestFile = null;
+ File appXmlFile;
+ File locationFile = null;
+
+ if (url != null) {
+ String path = url.getPath();
+ locationFile = new File(path);
+ } else {
+ throw new ContributionReadException(
+ "SpringXMLLoader 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) {
+ appXmlFile = new File(locationFile, appCtxPath);
+ if (appXmlFile.exists()) {
+ return appXmlFile.toURL();
+ }
+ }
+ }
+ // no manifest-specified Spring context, use default
+ appXmlFile = new File(locationFile, "META-INF" + File.separator + "spring"
+ + File.separator + SpringImplementationConstants.APPLICATION_CONTEXT);
+ if (appXmlFile.exists()) {
+ return appXmlFile.toURL();
+ }
+ } 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) {
+ je = jf.getJarEntry(appCtxPath);
+ if (je != null) {
+ // TODO return a Spring specific Resource type for jars
+ return new URL("jar:" + locationFile.toURI().toURL() + "!/" + appCtxPath);
+ }
+ }
+ }
+ je = jf.getJarEntry("META-INF" + "/" + "spring" + "/" + SpringImplementationConstants.APPLICATION_CONTEXT);
+ if (je != null) {
+ return new URL("jar:" + locationFile.toURI().toURL() + "!/" + SpringImplementationConstants.APPLICATION_CONTEXT);
+ }
+ } catch (IOException e) {
+ // bad archive
+ // TODO: create a more appropriate exception type
+ throw new ContributionReadException("SpringXMLLoader getApplicationContextResource: "
+ + " IO exception reading context file.", e);
+ }
+ }
+ else {
+ if (locationFile.getName().endsWith(".xml")) {
+ return url;
+ }
+ 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 jarEntry = url.getPath().substring(6, url.getPath().indexOf("!"));
+ JarFile jf = new JarFile(jarEntry);
+ 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) {
+ je = jf.getJarEntry(url.getPath().substring(url.getPath().indexOf("!/")+2) + "/" + appCtxPath);
+ if (je != null) {
+ return new URL("jar:" + url.getPath() + "/" + appCtxPath);
+ }
+ }
+ }
+ }
+ } catch (IOException e) {
+ throw new ContributionReadException("Error reading manifest " + manifestFile);
+ }
+ }
+ }
+ }
+
+ throw new ContributionReadException("SpringXMLLoader getApplicationContextResource: "
+ + "META-INF/spring/" + SpringImplementationConstants.APPLICATION_CONTEXT + "not found");
+ } // 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;
+ }
+} // end class SpringXMLComponentTypeLoader
|