diff options
Diffstat (limited to 'sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect')
4 files changed, 31 insertions, 1128 deletions
diff --git a/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringBeanIntrospector.java b/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringBeanIntrospector.java index f163a75581..5eaf27ab81 100644 --- a/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringBeanIntrospector.java +++ b/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringBeanIntrospector.java @@ -88,12 +88,6 @@ public class SpringBeanIntrospector { throw new ContributionResolveException(e); } // end try - /* List<Service> services = javaImplementation.getServices(); - for (Service service : services) { - String name = service.getName(); - System.out.println("Spring Bean: found service with name: " + name); - } // end for */ - return javaImplementation; } // end method introspectBean diff --git a/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringBeanPojoProcessor.java b/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringBeanPojoProcessor.java deleted file mode 100644 index 985b127adf..0000000000 --- a/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringBeanPojoProcessor.java +++ /dev/null @@ -1,664 +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 org.apache.tuscany.sca.implementation.java.introspect.JavaIntrospectionHelper.getAllInterfaces; -import static org.apache.tuscany.sca.implementation.java.introspect.JavaIntrospectionHelper.getAllPublicAndProtectedFields; -import static org.apache.tuscany.sca.implementation.java.introspect.JavaIntrospectionHelper.getAllUniquePublicProtectedMethods; -import static org.apache.tuscany.sca.implementation.java.introspect.JavaIntrospectionHelper.getPrivateFields; -import static org.apache.tuscany.sca.implementation.java.introspect.JavaIntrospectionHelper.toPropertyName; - -import java.lang.annotation.Annotation; -import java.lang.reflect.Constructor; -import java.lang.reflect.Field; -import java.lang.reflect.Member; -import java.lang.reflect.Method; -import java.lang.reflect.Modifier; -import java.lang.reflect.Type; -import java.util.Arrays; -import java.util.Collection; -import java.util.HashSet; -import java.util.List; -import java.util.Map; -import java.util.Set; - -import javax.jws.WebService; - -import org.apache.tuscany.sca.assembly.AssemblyFactory; -import org.apache.tuscany.sca.assembly.Contract; -import org.apache.tuscany.sca.assembly.Multiplicity; -import org.apache.tuscany.sca.core.ExtensionPointRegistry; -import org.apache.tuscany.sca.implementation.java.IntrospectionException; -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.java.introspect.BaseJavaClassVisitor; -import org.apache.tuscany.sca.implementation.java.introspect.JavaIntrospectionHelper; -import org.apache.tuscany.sca.implementation.java.introspect.impl.AmbiguousConstructorException; -import org.apache.tuscany.sca.implementation.java.introspect.impl.InvalidServiceTypeException; -import org.apache.tuscany.sca.implementation.java.introspect.impl.NoConstructorException; -import org.apache.tuscany.sca.implementation.java.introspect.impl.Resource; -import org.apache.tuscany.sca.implementation.spring.SpringConstructorArgElement; -import org.apache.tuscany.sca.interfacedef.Interface; -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.oasisopen.sca.annotation.Callback; -import org.oasisopen.sca.annotation.Context; -import org.oasisopen.sca.annotation.Property; -import org.oasisopen.sca.annotation.Reference; -import org.oasisopen.sca.annotation.Remotable; - -/** - * Heuristically evaluates an un-annotated Java implementation type to determine - * services, references, and properties according to the algorithm described in - * the SCA Java Client and Implementation Model Specification <p/> TODO - * Implement: <p/> When no service interface is annotated, need to calculate a - * single service comprising all public methods that are not reference or - * property injection sites. If that service can be exactly mapped to an - * interface implemented by the class then the service interface will be defined - * in terms of that interface. - * - * @version $Rev$ $Date$ - */ -public class SpringBeanPojoProcessor extends BaseJavaClassVisitor { - private List<SpringConstructorArgElement> conArgs; - - public SpringBeanPojoProcessor(AssemblyFactory assemblyFactory, - JavaInterfaceFactory javaFactory, - List<SpringConstructorArgElement> conArgs) { - super(assemblyFactory); - this.javaInterfaceFactory = javaFactory; - this.conArgs = conArgs; - } - - public SpringBeanPojoProcessor(ExtensionPointRegistry registry) { - super(registry); - } - - @Override - public <T> void visitEnd(Class<T> clazz, JavaImplementation type) throws IntrospectionException { - List<org.apache.tuscany.sca.assembly.Service> services = type.getServices(); - if (services.isEmpty()) { - // heuristically determine the service - /** - * The following is quoted from Java Specification 1.2.1.3. Introspecting services offered by a Java implementation - * In the cases described below, the services offered by a Java implementation class may be determined - * through introspection, eliding the need to specify them using @Service. The following algorithm is used - * to determine how services are introspected from an implementation class: - * - * If the interfaces of the SCA services are not specified with the @Service annotation on the - * implementation class, it is assumed that all implemented interfaces that have been annotated - * as @Remotable are the service interfaces provided by the component. If none of the implemented - * interfaces is remotable, then by default the implementation offers a single service whose type - * is the implementation class. - */ - Set<Class<?>> interfaces = getAllInterfaces(clazz); - for (Class<?> i : interfaces) { - if (i.isAnnotationPresent(Remotable.class) || i.isAnnotationPresent(WebService.class)) { - addService(type, i); - } - } - if (services.isEmpty()) { - // class is the interface - addService(type, clazz); - } - } - Set<Method> methods = getAllUniquePublicProtectedMethods(clazz, false); - if (!type.getReferenceMembers().isEmpty() || !type.getPropertyMembers().isEmpty()) { - // references and properties have been explicitly defined - // if (type.getServices().isEmpty()) { - // calculateServiceInterface(clazz, type, methods); - // if (type.getServices().isEmpty()) { - // throw new ServiceTypeNotFoundException(clazz.getName()); - // } - // } - evaluateConstructor(type, clazz); - return; - } - calcPropRefs(methods, services, type, clazz); - evaluateConstructor(type, clazz); - } - - private void addService(JavaImplementation type, Class<?> clazz) throws IntrospectionException { - try { - org.apache.tuscany.sca.assembly.Service service = createService(clazz); - type.getServices().add(service); - } catch (InvalidInterfaceException e) { - throw new IntrospectionException(e); - } - } - - private boolean isPublicSetter(Method method) { - return method.getParameterTypes().length == 1 && Modifier.isPublic(method.getModifiers()) - && method.getName().startsWith("set") - && method.getReturnType() == void.class; - } - - private boolean isProtectedSetter(Method method) { - return method.getParameterTypes().length == 1 && Modifier.isProtected(method.getModifiers()) - && method.getName().startsWith("set") - && method.getReturnType() == void.class; - } - - private <T> void calcPropRefs(Set<Method> methods, - List<org.apache.tuscany.sca.assembly.Service> services, - JavaImplementation type, - Class<T> clazz) throws IntrospectionException { - // heuristically determine the properties references - // make a first pass through all public methods with one param - Set<String> setters = new HashSet<String>(); - Set<String> others = new HashSet<String>(); - for (Method method : methods) { - if (!isPublicSetter(method)) { - continue; - } - if (method.isAnnotationPresent(Callback.class) || method.isAnnotationPresent(Context.class)) { - // Add the property name as others - others.add(toPropertyName(method.getName())); - continue; - } - if (!isInServiceInterface(method, services)) { - // Not part of the service interface - String name = toPropertyName(method.getName()); - setters.add(name); - // avoid duplicate property or ref names - if (!type.getPropertyMembers().containsKey(name) && !type.getReferenceMembers().containsKey(name)) { - Class<?> param = method.getParameterTypes()[0]; - Type genericType = method.getGenericParameterTypes()[0]; - if (isReferenceType(param, genericType)) { - type.getReferences().add(createReference(name, param)); - type.getReferenceMembers().put(name, new JavaElementImpl(method, 0)); - } else { - type.getProperties().add(createProperty(name, param)); - type.getPropertyMembers().put(name, new JavaElementImpl(method, 0)); - } - } - } - } - // second pass for protected methods with one param - for (Method method : methods) { - if (!isProtectedSetter(method)) { - continue; - } - if (method.isAnnotationPresent(Callback.class) || method.isAnnotationPresent(Context.class)) { - // Add the property name as others - others.add(toPropertyName(method.getName())); - continue; - } - Class<?> param = method.getParameterTypes()[0]; - String name = toPropertyName(method.getName()); - setters.add(name); - // avoid duplicate property or ref names - if (isReferenceType(param, method.getGenericParameterTypes()[0])) { - if (!type.getReferenceMembers().containsKey(name)) { - type.getReferences().add(createReference(name, param)); - type.getReferenceMembers().put(name, new JavaElementImpl(method, 0)); - } - } else { - if (!type.getPropertyMembers().containsKey(name)) { - type.getProperties().add(createProperty(name, param)); - type.getPropertyMembers().put(name, new JavaElementImpl(method, 0)); - } - } - } - - // Public or protected fields unless there is a public or protected - // setter method - // for the same name - Set<Field> fields = getAllPublicAndProtectedFields(clazz, false); - for (Field field : fields) { - if (field.isAnnotationPresent(Callback.class) || field.isAnnotationPresent(Context.class)) { - continue; - } - if (setters.contains(field.getName()) || others.contains(field.getName())) { - continue; - } - String name = field.getName(); - Class<?> paramType = field.getType(); - if (isReferenceType(paramType, field.getGenericType())) { - if (!type.getReferenceMembers().containsKey(name)) { - type.getReferences().add(createReference(name, paramType)); - type.getReferenceMembers().put(name, new JavaElementImpl(field)); - } - } else { - if (!type.getPropertyMembers().containsKey(name)) { - type.getProperties().add(createProperty(name, paramType)); - type.getPropertyMembers().put(name, new JavaElementImpl(field)); - } - } - } - - // Private fields unless there is a public or protected - // setter method for the same name - Set<Field> privateFields = getPrivateFields(clazz); - for (Field field : privateFields) { - if (field.isAnnotationPresent(Callback.class) || field.isAnnotationPresent(Context.class)) { - continue; - } - if (setters.contains(field.getName()) || others.contains(field.getName())) { - continue; - } - String name = field.getName(); - Class<?> paramType = field.getType(); - if (isReferenceType(paramType, field.getGenericType())) { - if (!type.getReferenceMembers().containsKey(name)) { - type.getReferences().add(createReference(name, paramType)); - type.getReferenceMembers().put(name, new JavaElementImpl(field)); - } - } else { - if (!type.getPropertyMembers().containsKey(name)) { - type.getProperties().add(createProperty(name, paramType)); - type.getPropertyMembers().put(name, new JavaElementImpl(field)); - } - } - } - } - - /** - * Determines the constructor to use based on the component type's - * references and properties - * - * @param type the component type - * @param clazz the implementation class corresponding to the component type - * @throws NoConstructorException if no suitable constructor is found - * @throws AmbiguousConstructorException if the parameters of a constructor - * cannot be unambiguously mapped to references and properties - */ - @SuppressWarnings("unchecked") - private <T> void evaluateConstructor(JavaImplementation type, Class<T> clazz) throws IntrospectionException { - // determine constructor if one is not annotated - JavaConstructorImpl<?> definition = type.getConstructor(); - Map<String, JavaElementImpl> props = type.getPropertyMembers(); - Map<String, JavaElementImpl> refs = type.getReferenceMembers(); - Constructor constructor; - boolean explict = false; - if (definition != null && definition.getConstructor() - .isAnnotationPresent(org.oasisopen.sca.annotation.Constructor.class)) { - // the constructor was already defined explicitly - return; - } else if (definition != null) { - explict = true; - constructor = definition.getConstructor(); - } else { - // no definition, heuristically determine constructor - Constructor[] constructors = clazz.getConstructors(); - if (constructors.length == 0) { - throw new NoConstructorException("No public constructor for class"); - } else if (constructors.length == 1) { - // Only one constructor, take it - constructor = constructors[0]; - } else { - // multiple constructors scenario - Constructor<T> selected = null; - for (Constructor<T> ctor : constructors) { - if (ctor.getParameterTypes().length == 0) { - selected = ctor; - } else if (ctor.getParameterTypes().length == conArgs.size()) { - // we will find a constructor which has atleast one - // reference or property as its parameter types. - Class<?>[] parametersTypes = ctor.getParameterTypes(); - for (Class<?> pType : parametersTypes) { - for (JavaElementImpl property : props.values()) { - if (pType.equals(property.getType())) - selected = ctor; - } - for (JavaElementImpl reference : refs.values()) { - if (pType.equals(reference.getType())) - selected = ctor; - } - } - } - } - if (selected == null) { - throw new NoConstructorException(); - } - constructor = selected; - } - definition = type.getConstructors().get(constructor); - type.setConstructor(definition); - } - - JavaParameterImpl[] parameters = definition.getParameters(); - if (parameters.length == 0) { - return; - } - - Annotation[][] annotations = constructor.getParameterAnnotations(); - if (!explict) { - // the constructor wasn't defined by an annotation, so check to see - // if any of the params have an annotation - // which we can impute as explicitly defining the constructor, e.g. - // @Property, @Reference, or @Autowire - explict = injectionAnnotationsPresent(annotations); - } - if (explict) { - for (int i = 0; i < parameters.length; i++) { - if (isAnnotated(parameters[i])) { - continue; - } else if (!findReferenceOrProperty(parameters[i], props, refs)) { - throw new AmbiguousConstructorException(parameters[i].toString()); - } - } - } else { - if (!areUnique(parameters)) { - throw new AmbiguousConstructorException("Cannot resolve non-unique parameter types, use @Constructor"); - } - if (!calcPropRefUniqueness(props.values(), refs.values())) { - throw new AmbiguousConstructorException("Cannot resolve non-unique parameter types, use @Constructor"); - } - if (!(props.isEmpty() && refs.isEmpty())) { - calcParamNames(parameters, props, refs); - } else { - heuristicParamNames(type, parameters); - - } - } - } - - private void calcParamNames(JavaParameterImpl[] parameters, - Map<String, JavaElementImpl> props, - Map<String, JavaElementImpl> refs) throws AmbiguousConstructorException { - // the constructor param types must unambiguously match defined - // reference or property types - for (JavaParameterImpl param : parameters) { - if (!findReferenceOrProperty(param, props, refs)) { - throw new AmbiguousConstructorException(param.getName()); - } - } - } - - private void heuristicParamNames(JavaImplementation type, JavaParameterImpl[] parameters) - throws IntrospectionException { - // heuristically determine refs and props from the parameter types - for (JavaParameterImpl p : parameters) { - String name = p.getType().getSimpleName().toLowerCase(); - if (isReferenceType(p.getType(), p.getGenericType())) { - type.getReferences().add(createReference(name, p.getType())); - p.setClassifer(Reference.class); - type.getReferenceMembers().put(name, p); - } else { - type.getProperties().add(createProperty(name, p.getType())); - p.setClassifer(Property.class); - type.getPropertyMembers().put(name, p); - } - p.setName(name); - } - } - - private static boolean areUnique(Class[] collection) { - Set<Class> set = new HashSet<Class>(Arrays.asList(collection)); - return set.size() == collection.length; - } - - /** - * Returns true if the union of the given collections of properties and - * references have unique Java types - */ - private boolean calcPropRefUniqueness(Collection<JavaElementImpl> props, Collection<JavaElementImpl> refs) { - - Class[] classes = new Class[props.size() + refs.size()]; - int i = 0; - for (JavaElementImpl property : props) { - classes[i] = property.getType(); - i++; - } - for (JavaElementImpl reference : refs) { - classes[i] = reference.getType(); - i++; - } - return areUnique(classes); - } - - /** - * Unambiguously finds the reference or property associated with the given - * type - * - * @return the name of the reference or property if found, null if not - * @throws AmbiguousConstructorException if the constructor parameter cannot - * be resolved to a property or reference - */ - private boolean findReferenceOrProperty(JavaParameterImpl parameter, - Map<String, JavaElementImpl> props, - Map<String, JavaElementImpl> refs) throws AmbiguousConstructorException { - - boolean found = false; - if (!"".equals(parameter.getName())) { - // Match by name - JavaElementImpl prop = props.get(parameter.getName()); - if (prop != null && prop.getType() == parameter.getType()) { - parameter.setClassifer(Property.class); - return true; - } - JavaElementImpl ref = refs.get(parameter.getName()); - if (ref != null && ref.getType() == parameter.getType()) { - parameter.setClassifer(Reference.class); - return true; - } - } - for (JavaElementImpl property : props.values()) { - if (property.getType() == parameter.getType()) { - if (found) { - throw new AmbiguousConstructorException("Ambiguous property or reference for constructor type", - (Member)parameter.getAnchor()); - } - parameter.setClassifer(Property.class); - parameter.setName(property.getName()); - found = true; - // do not break since ambiguities must be checked, i.e. more - // than one prop or ref of the same type - } - } - for (JavaElementImpl reference : refs.values()) { - if (reference.getType() == parameter.getType()) { - if (found) { - throw new AmbiguousConstructorException("Ambiguous property or reference for constructor type", - (Member)parameter.getAnchor()); - } - parameter.setClassifer(Reference.class); - parameter.setName(reference.getName()); - found = true; - // do not break since ambiguities must be checked, i.e. more - // than one prop or ref of the same type - } - } - return found; - } - - /** - * Returns true if a given type is reference according to the SCA - * specification rules for determining reference types The following rules - * are used to determine whether an unannotated field or setter method is a - * property or reference: - * <ol> - * <li>If its type is simple, then it is a property. - * <li>If its type is complex, then if the type is an interface marked by - * - * @Remotable, then it is a reference; otherwise, it is a property. - * <li>Otherwise, if the type associated with the member is an - * array or a java.util.Collection, the basetype is the element - * type of the array or the parameterized type of the - * Collection; otherwise the basetype is the member type. If the - * basetype is an interface with an - * @Remotable or - * @Service annotation then the member is defined as a reference. Otherwise, - * it is defined as a property. - * </ol> - * <p> - * The name of the reference or of the property is derived from the - * name found on the setter method or on the field. - */ - private boolean isReferenceType(Class<?> cls, Type genericType) { - Class<?> baseType = JavaIntrospectionHelper.getBaseType(cls, genericType); - return baseType.isInterface() && baseType.isAnnotationPresent(Remotable.class); - } - - /** - * Returns true if the given operation is defined in the collection of - * service interfaces - */ - private boolean isInServiceInterface(Method operation, List<org.apache.tuscany.sca.assembly.Service> services) { - for (org.apache.tuscany.sca.assembly.Service service : services) { - Interface interface1 = service.getInterfaceContract().getInterface(); - if (interface1 instanceof JavaInterface) { - Class<?> clazz = ((JavaInterface)interface1).getJavaClass(); - if (isMethodMatched(clazz, operation)) { - return true; - } - } - } - return false; - } - - /** - * Test if the class declares a method which matches the signature of the - * given method - * - * @param clazz - * @param method - * @return - */ - private boolean isMethodMatched(Class<?> clazz, Method method) { - if (method.getDeclaringClass() == clazz) { - return true; - } - Method[] methods = clazz.getMethods(); - for (Method m : methods) { - if (JavaIntrospectionHelper.exactMethodMatch(method, m)) { - return true; - } - } - return false; - } - - /** - * Creates a mapped property. - * - * @param name the property name - * @param paramType the property type - */ - private org.apache.tuscany.sca.assembly.Property createProperty(String name, Class<?> paramType) { - org.apache.tuscany.sca.assembly.Property property = assemblyFactory.createProperty(); - property.setName(name); - property.setXSDType(JavaXMLMapper.getXMLType(paramType)); - return property; - } - - private boolean isAnnotated(JavaParameterImpl parameter) { - for (Annotation annotation : parameter.getAnnotations()) { - Class<? extends Annotation> annotType = annotation.annotationType(); - if (annotType.equals(Property.class) || annotType.equals(Reference.class) - || annotType.equals(Resource.class)) { - return true; - } - } - return false; - } - - public boolean areUnique(JavaParameterImpl[] parameters) { - Set<Class> set = new HashSet<Class>(parameters.length); - for (JavaParameterImpl p : parameters) { - if (!set.add(p.getType())) { - return false; - } - } - return true; - } - - public org.apache.tuscany.sca.assembly.Reference createReference(String name, Class<?> paramType) - throws IntrospectionException { - org.apache.tuscany.sca.assembly.Reference reference = assemblyFactory.createReference(); - reference.setName(name); - JavaInterfaceContract interfaceContract = javaInterfaceFactory.createJavaInterfaceContract(); - reference.setInterfaceContract(interfaceContract); - try { - JavaInterface callInterface = javaInterfaceFactory.createJavaInterface(paramType); - reference.getInterfaceContract().setInterface(callInterface); - if (callInterface.getCallbackClass() != null) { - JavaInterface callbackInterface = - javaInterfaceFactory.createJavaInterface(callInterface.getCallbackClass()); - reference.getInterfaceContract().setCallbackInterface(callbackInterface); - } - reference.setMultiplicity(Multiplicity.ZERO_ONE); - } catch (InvalidInterfaceException e1) { - throw new IntrospectionException(e1); - } - - // FIXME: This part seems to have already been taken care above!! - try { - processCallback(paramType, reference); - } catch (InvalidServiceTypeException e) { - throw new IntrospectionException(e); - } - return reference; - } - - public org.apache.tuscany.sca.assembly.Service createService(Class<?> interfaze) throws InvalidInterfaceException { - org.apache.tuscany.sca.assembly.Service service = assemblyFactory.createService(); - service.setName(interfaze.getSimpleName()); - - JavaInterfaceContract interfaceContract = javaInterfaceFactory.createJavaInterfaceContract(); - service.setInterfaceContract(interfaceContract); - - JavaInterface callInterface = javaInterfaceFactory.createJavaInterface(interfaze); - service.getInterfaceContract().setInterface(callInterface); - if (callInterface.getCallbackClass() != null) { - JavaInterface callbackInterface = - javaInterfaceFactory.createJavaInterface(callInterface.getCallbackClass()); - service.getInterfaceContract().setCallbackInterface(callbackInterface); - } - - Interface javaInterface = service.getInterfaceContract().getInterface(); - javaInterface.setRemotable(interfaze.getAnnotation(Remotable.class) != null); - service.getInterfaceContract().setInterface(javaInterface); - return service; - } - - public void processCallback(Class<?> interfaze, Contract contract) throws InvalidServiceTypeException { - Callback callback = interfaze.getAnnotation(Callback.class); - if (callback != null && !Void.class.equals(callback.value())) { - Class<?> callbackClass = callback.value(); - JavaInterface javaInterface; - try { - javaInterface = javaInterfaceFactory.createJavaInterface(callbackClass); - contract.getInterfaceContract().setCallbackInterface(javaInterface); - } catch (InvalidInterfaceException e) { - throw new InvalidServiceTypeException("Invalid callback interface " + callbackClass, interfaze); - } - } else if (callback != null && Void.class.equals(callback.value())) { - throw new InvalidServiceTypeException("No callback interface specified on annotation", interfaze); - } - } - - public boolean injectionAnnotationsPresent(Annotation[][] annots) { - for (Annotation[] annotations : annots) { - for (Annotation annotation : annotations) { - Class<? extends Annotation> annotType = annotation.annotationType(); - if (annotType.equals(Property.class) || annotType.equals(Reference.class) - || annotType.equals(Resource.class)) { - return true; - } - } - } - return false; - } -} diff --git a/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java b/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java index d25b0a9aea..2730ee3146 100644 --- a/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java +++ b/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java @@ -18,22 +18,6 @@ */ 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 static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.BEAN_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.CONSTRUCTORARG_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.ENTRY_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.IMPORT_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.LIST_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.MAP_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.PROPERTY_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.REF_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.SCA_PROPERTY_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.SCA_REFERENCE_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.SCA_SERVICE_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.SET_ELEMENT; -import static org.apache.tuscany.sca.implementation.spring.SpringImplementationConstants.VALUE_ELEMENT; - import java.io.File; import java.io.FileInputStream; import java.io.IOException; @@ -57,18 +41,12 @@ import java.util.jar.Manifest; import java.util.logging.Level; import java.util.logging.Logger; -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; @@ -77,6 +55,7 @@ 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.core.UtilityExtensionPoint; import org.apache.tuscany.sca.implementation.java.JavaConstructorImpl; import org.apache.tuscany.sca.implementation.java.JavaElementImpl; import org.apache.tuscany.sca.implementation.java.JavaImplementation; @@ -88,6 +67,7 @@ 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.implementation.spring.xml.SpringXMLBeanDefinitionLoader; import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException; import org.apache.tuscany.sca.interfacedef.java.JavaInterface; import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract; @@ -96,7 +76,6 @@ 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../> @@ -108,24 +87,22 @@ public class SpringXMLComponentTypeLoader { private final static Logger log = Logger.getLogger(SpringXMLComponentTypeLoader.class.getName()); private ExtensionPointRegistry registry; - private XMLInputFactory xmlInputFactory; private ContributionFactory contributionFactory; private AssemblyFactory assemblyFactory; private JavaInterfaceFactory javaFactory; - private PolicyFactory policyFactory; - private PolicySubjectProcessor policyProcessor; private SpringBeanIntrospector beanIntrospector; + private SpringXMLBeanDefinitionLoader xmlBeanDefinitionLoader; + public SpringXMLComponentTypeLoader(ExtensionPointRegistry registry) { 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.xmlBeanDefinitionLoader = + registry.getExtensionPoint(UtilityExtensionPoint.class).getUtility(SpringXMLBeanDefinitionLoader.class); } /** @@ -194,7 +171,6 @@ public class SpringXMLComponentTypeLoader { */ 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>(); @@ -213,35 +189,27 @@ public class SpringXMLComponentTypeLoader { // 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 - Set<String> visited = new HashSet<String>(); - readContextDefinition(resolver, - reader, - contextPath, - visited, - appCxtBeans, - appCxtServices, - appCxtReferences, - appCxtProperties, - context); - // Validate the beans from individual application context for uniqueness - validateBeans(appCxtBeans, appCxtServices, appCxtReferences, appCxtProperties, context.getMonitor()); - // Add all the validated beans to the generic list - beans.addAll(appCxtBeans); - services.addAll(appCxtServices); - references.addAll(appCxtReferences); - scaproperties.addAll(appCxtProperties); - reader.close(); + List<SpringBeanElement> appCxtBeans = new ArrayList<SpringBeanElement>(); + List<SpringSCAServiceElement> appCxtServices = new ArrayList<SpringSCAServiceElement>(); + List<SpringSCAReferenceElement> appCxtReferences = new ArrayList<SpringSCAReferenceElement>(); + List<SpringSCAPropertyElement> appCxtProperties = new ArrayList<SpringSCAPropertyElement>(); + + if (xmlBeanDefinitionLoader != null) { + xmlBeanDefinitionLoader.load(contextResources, + appCxtServices, + appCxtReferences, + appCxtProperties, + appCxtBeans, + context); } - } catch (IOException e) { - throw new ContributionReadException(e); - } catch (XMLStreamException e) { + // Validate the beans from individual application context for uniqueness + validateBeans(appCxtBeans, appCxtServices, appCxtReferences, appCxtProperties, context.getMonitor()); + // Add all the validated beans to the generic list + beans.addAll(appCxtBeans); + services.addAll(appCxtServices); + references.addAll(appCxtReferences); + scaproperties.addAll(appCxtProperties); + } catch (Throwable e) { throw new ContributionReadException(e); } @@ -283,319 +251,6 @@ public class SpringXMLComponentTypeLoader { } /** - * 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); - } - } - - /** - * Spring 2.0 bean xml definitions use DTD and there is no namespace for the elements - * @param expected - * @param actual - * @return - */ - private static boolean matches(QName expected, QName actual) { - return expected.equals(actual) || ("".equals(actual.getNamespaceURI()) && expected.getLocalPart().equals(actual.getLocalPart())); - } - - /** - * 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, - Set<String> visited, - List<SpringBeanElement> beans, - List<SpringSCAServiceElement> services, - List<SpringSCAReferenceElement> references, - List<SpringSCAPropertyElement> scaproperties, - ProcessorContext context) throws ContributionReadException { - - if (visited.contains(contextPath)) { - log.warning("Duplicate Spring bean definition file is skipped: " + contextPath); - return; - } - visited.add(contextPath); - SpringBeanElement bean = null; - - try { - int level = 0; - while (level >= 0) { - switch (reader.next()) { - case START_ELEMENT: - level++; - QName qname = reader.getName(); - //System.out.println("Spring TypeLoader - found element with name: " + qname.toString()); - if (matches(IMPORT_ELEMENT, 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, resourcePath, // The new context path - visited, - beans, - services, - references, - scaproperties, - context); - } - } else if (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(context.getMonitor(), "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 (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(context.getMonitor(), "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 (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(context.getMonitor(), "ScaPropertyNameNotUnique", resolver); - - SpringSCAPropertyElement scaproperty = - new SpringSCAPropertyElement(reader.getAttributeValue(null, "name"), - reader.getAttributeValue(null, "type")); - scaproperties.add(scaproperty); - } else if (matches(BEAN_ELEMENT, 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); - if (log.isLoggable(Level.FINE)) { - log.log(Level.FINE, "Adding Spring bean ..." + bean.getId() + " from " + contextPath); - } - // Read the <bean> element and its child elements - readBeanDefinition(reader, bean, beans); - } // end if - - // [rfeng] If it reaches end-element, proceed to the case END_ELEMENT test - if (reader.getEventType() != END_ELEMENT) { - break; - } - case END_ELEMENT: - level--; - if (level == 0) { - // Now we are back the root element - return; - } - break; - } // 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 { - int level = 0; - while (level >= 0) { - switch (reader.next()) { - case START_ELEMENT: - level++; - QName qname = reader.getName(); - if (matches(BEAN_ELEMENT, 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 (matches(PROPERTY_ELEMENT, 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 (matches(CONSTRUCTORARG_ELEMENT, 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 (matches(REF_ELEMENT, 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 (matches(VALUE_ELEMENT, qname)) { - String value = reader.getElementText(); - // Check if the parent element is a constructor-arg - if (constructorArg != null) - constructorArg.addValue(value); - } else if (matches(LIST_ELEMENT, qname) || matches(SET_ELEMENT, qname) || matches(MAP_ELEMENT, qname)) { - if (property != null) - readCollections(reader, bean, beans, property, null); - if (constructorArg != null) - readCollections(reader, bean, beans, null, constructorArg); - } // end if - // [rfeng] If it reaches end-element, proceed to the case END_ELEMENT test - if (reader.getEventType() != END_ELEMENT) { - break; - } - case END_ELEMENT: - level--; - break; - } // 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 { - int level = 0; - while (level >= 0) { - switch (reader.next()) { - case START_ELEMENT: - level++; - QName qname = reader.getName(); - if (matches(BEAN_ELEMENT, 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 (matches(REF_ELEMENT, qname)) { - String ref = reader.getAttributeValue(null, "bean"); - if (property != null) - property.addRef(ref); - if (constructorArg != null) - constructorArg.addRef(ref); - } else if (matches(LIST_ELEMENT, qname) || matches(SET_ELEMENT, qname) || matches(MAP_ELEMENT, qname)) { - if (property != null) - readCollections(reader, innerbean, beans, property, null); - if (constructorArg != null) - readCollections(reader, innerbean, beans, null, constructorArg); - } else if (matches(ENTRY_ELEMENT, 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 - // [rfeng] If it reaches end-element, proceed to the case END_ELEMENT test - if (reader.getEventType() != END_ELEMENT) { - break; - } - case END_ELEMENT: - level--; - break; - } // 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 */ @@ -643,7 +298,7 @@ public class SpringXMLComponentTypeLoader { String beanName = serviceElement.getTarget(); for (SpringBeanElement beanElement : beans) { if (beanName.equals(beanElement.getId())) { - if (isvalidBeanForService(beanElement)) { + if (isValidBeanForService(beanElement)) { // add the required intents and policySets for the service theService.getRequiredIntents().addAll(serviceElement.getRequiredIntents()); theService.getPolicySets().addAll(serviceElement.getPolicySets()); @@ -713,7 +368,7 @@ public class SpringXMLComponentTypeLoader { SpringBeanElement beanElement = itb.next(); // If its not a valid bean for service, ignore it - if (!isvalidBeanForService(beanElement)) { + if (!isValidBeanForService(beanElement)) { continue; } try { @@ -746,9 +401,9 @@ public class SpringXMLComponentTypeLoader { itb = beans.iterator(); while (itb.hasNext()) { SpringBeanElement beanElement = itb.next(); - + // If its not a valid bean for service, ignore it - if (!isvalidBeanForService(beanElement)) { + if (!isValidBeanForService(beanElement)) { continue; } // Ignore if the bean has no properties and constructor arguments @@ -794,7 +449,6 @@ public class SpringXMLComponentTypeLoader { break; } // end if } // end for - // Store the unresolved references as unresolvedBeanRef in the Spring Implementation type for (Property scaproperty : beanProperties) { @@ -1015,7 +669,7 @@ public class SpringXMLComponentTypeLoader { /** * Validates whether a bean definition is valid for exposing as service. */ - private boolean isvalidBeanForService(SpringBeanElement beanElement) { + private boolean isValidBeanForService(SpringBeanElement beanElement) { if (beanElement.isInnerBean()) return false; diff --git a/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLLoaderStub.java b/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLLoaderStub.java deleted file mode 100644 index 01208aba19..0000000000 --- a/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLLoaderStub.java +++ /dev/null @@ -1,81 +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 java.lang.reflect.Method; -import java.net.URL; -import java.util.Arrays; -import java.util.List; - -import org.apache.tuscany.sca.implementation.spring.SpringBeanElement; -import org.apache.tuscany.sca.implementation.spring.SpringSCAPropertyElement; -import org.apache.tuscany.sca.implementation.spring.SpringSCAReferenceElement; -import org.apache.tuscany.sca.implementation.spring.SpringSCAServiceElement; - -/** - * This is the Tuscany side stub for the corresponding runtime tie class. - * It enables the Tuscany code to invoke methods on a Spring context without - * needing to know about any Spring classes. See the SpringContextTie class - * in the implementation-spring-runtime module for what the tie does. - */ -public class SpringXMLLoaderStub { - private final static String TIE = "org.apache.tuscany.sca.implementation.spring.processor.SpringXMLLoaderTie"; - - private static Method createApplicationContext; - - public SpringXMLLoaderStub() throws Exception { - synchronized (SpringXMLLoaderStub.class) { - if (createApplicationContext == null) { - Class<?> tieClass = Class.forName(TIE, false, Thread.currentThread().getContextClassLoader()); - createApplicationContext = - tieClass.getMethod("createApplicationContext", Object.class, ClassLoader.class, List.class); - } - } - } - - public Object createApplicationContext(Object scaParentContext, ClassLoader classLoader, List<URL> resources) - throws Exception { - return createApplicationContext.invoke(null, scaParentContext, classLoader, resources); - } - - public void introspect(List<URL> resources, - List<SpringSCAServiceElement> serviceElements, - List<SpringSCAReferenceElement> referenceElements, - List<SpringSCAPropertyElement> propertyElements, - List<SpringBeanElement> beanElements) throws Exception { - Object appContext = createApplicationContext(null, Thread.currentThread().getContextClassLoader(), resources); - Class<?> cls = appContext.getClass(); - Method method = cls.getMethod("getElements", Class.class); - SpringSCAServiceElement[] serviceArray = - (SpringSCAServiceElement[])method.invoke(appContext, SpringSCAServiceElement.class); - serviceElements.addAll(Arrays.asList(serviceArray)); - - SpringSCAReferenceElement[] referenceArray = - (SpringSCAReferenceElement[])method.invoke(appContext, SpringSCAReferenceElement.class); - referenceElements.addAll(Arrays.asList(referenceArray)); - - SpringSCAPropertyElement[] propertyArray = - (SpringSCAPropertyElement[])method.invoke(appContext, SpringSCAPropertyElement.class); - propertyElements.addAll(Arrays.asList(propertyArray)); - - SpringBeanElement[] beanArray = (SpringBeanElement[])method.invoke(appContext, SpringBeanElement.class); - beanElements.addAll(Arrays.asList(beanArray)); - } -} |