diff options
Diffstat (limited to 'sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor')
8 files changed, 834 insertions, 0 deletions
diff --git a/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ComponentNameAnnotationProcessor.java b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ComponentNameAnnotationProcessor.java new file mode 100644 index 0000000000..77f9f30bfd --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ComponentNameAnnotationProcessor.java @@ -0,0 +1,151 @@ +/* + * 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.processor.tie; + +import java.beans.PropertyDescriptor; +import java.lang.annotation.Annotation; +import java.lang.ref.Reference; +import java.lang.reflect.Field; +import java.lang.reflect.Method; +import java.lang.reflect.Modifier; + +import org.oasisopen.sca.annotation.ComponentName; +import org.springframework.beans.BeanUtils; +import org.springframework.beans.BeansException; +import org.springframework.beans.FatalBeanException; +import org.springframework.beans.factory.config.BeanPostProcessor; +import org.springframework.util.Assert; +import org.springframework.util.ReflectionUtils; + +public class ComponentNameAnnotationProcessor implements BeanPostProcessor { + + private Class<? extends Annotation> componentNameAnnotationType = ComponentName.class; + + private String componentName; + + public ComponentNameAnnotationProcessor(String componentName) { + this.componentName = componentName; + } + + /** + * Gets componentName annotation type. + */ + protected Class<? extends Annotation> getComponentNameAnnotationType() { + return this.componentNameAnnotationType; + } + + /** + * Sets componentName annotation type. + */ + public void setComponentNameAnnotationType(Class<? extends Annotation> componentNameAnnotationType) { + Assert.notNull(componentNameAnnotationType, "'componentNameAnnotationType' type must not be null."); + this.componentNameAnnotationType = componentNameAnnotationType; + } + + /** + * This method is used to execute before a bean's initialization callback. + * + * @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessBeforeInitialization(java.lang.Object, java.lang.String) + */ + public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { + processAnnotation(bean); + return bean; + } + + /** + * This method is used to execute after a bean's initialization callback. + * + * @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessAfterInitialization(java.lang.Object, java.lang.String) + */ + public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { + return bean; + } + + /** + * <p>Processes a beans fields for injection if it has a {@link Reference} annotation.</p> + */ + protected void processAnnotation(final Object bean) { + + final Class<?> clazz = bean.getClass(); + + ReflectionUtils.doWithFields(clazz, new ReflectionUtils.FieldCallback() { + public void doWith(Field field) { + Annotation annotation = field.getAnnotation(getComponentNameAnnotationType()); + + if (annotation != null) { + if (Modifier.isStatic(field.getModifiers())) { + throw new IllegalStateException("ComponentName annotation is not supported on static fields"); + } + + if (Modifier.isPrivate(field.getModifiers())) { + throw new IllegalStateException("ComponentName annotation is not supported on private fields"); + } + + ReflectionUtils.makeAccessible(field); + + if (field.getType().getName().equals("java.lang.String")) { + Object nameObj = componentName; + if (nameObj != null) + ReflectionUtils.setField(field, bean, nameObj); + } else { + throw new IllegalStateException( + "ComponentName annotation is supported only on java.lang.String field type."); + } + } + } + }); + + ReflectionUtils.doWithMethods(clazz, new ReflectionUtils.MethodCallback() { + public void doWith(Method method) { + Annotation annotation = method.getAnnotation(getComponentNameAnnotationType()); + + if (annotation != null) { + if (Modifier.isStatic(method.getModifiers())) { + throw new IllegalStateException("ComponentName annotation is not supported on static methods"); + } + + if (Modifier.isPrivate(method.getModifiers())) { + throw new IllegalStateException("ComponentName annotation is not supported on private methods"); + } + + if (method.getParameterTypes().length == 0) { + throw new IllegalStateException( + "ComponentName annotation requires at least one argument: " + method); + } + + PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method); + + if (pd.getPropertyType().getName().equals("java.lang.String")) { + Object nameObj = componentName; + if (nameObj != null) { + try { + pd.getWriteMethod().invoke(bean, new Object[] {nameObj}); + } catch (Throwable e) { + throw new FatalBeanException("Problem injecting reference: " + e.getMessage(), e); + } + } + } else { + throw new IllegalStateException( + "ComponentName annotation is supported only on java.lang.String field type."); + } + } + } + }); + } +} diff --git a/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ComponentStub.java b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ComponentStub.java new file mode 100644 index 0000000000..7511ac4bd5 --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ComponentStub.java @@ -0,0 +1,54 @@ +/* + * 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.processor.tie; + +import java.lang.reflect.Method; + +/** + * This is the Spring runtime side stub for the corresponding Tuscany tie class. + * It enables the Tuscany code to invoke methods on a Spring context without + * needing to know about any Spring classes. See the ComponentTie class + * in the implementation-spring module for what the tie does. + */ +public class ComponentStub { + + private Object tie; + private Method getService; + + public ComponentStub(Object tie) { + this.tie = tie; + Class<?> tieClass = tie.getClass(); + try { + getService = tieClass.getMethod("getService", new Class<?>[] {Class.class, String.class}); + } catch (Exception e) { + throw new RuntimeException(e); + } + } + + public Object getService(Class<?> type, String name) { + try { + + return getService.invoke(tie, type, name); + + } catch (Exception e) { + throw new RuntimeException(e); + } + } +} diff --git a/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ConstructorAnnotationProcessor.java b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ConstructorAnnotationProcessor.java new file mode 100644 index 0000000000..503307cfd9 --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ConstructorAnnotationProcessor.java @@ -0,0 +1,112 @@ +/* + * 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.processor.tie; + +import java.lang.annotation.Annotation; +import java.lang.reflect.Constructor; + +import org.springframework.beans.BeansException; +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.beans.factory.config.InstantiationAwareBeanPostProcessorAdapter; +import org.springframework.util.Assert; + +public class ConstructorAnnotationProcessor extends InstantiationAwareBeanPostProcessorAdapter { + + private Class<? extends Annotation> constructorAnnotationType = org.oasisopen.sca.annotation.Constructor.class; + + private Class<? extends Annotation> autowiredAnnotationType = Autowired.class; + + public ConstructorAnnotationProcessor() { + // Default constructor. + } + + /** + * Set the 'autowired' annotation type, to be used on constructors, fields, + * setter methods and arbitrary config methods. + */ + public void setAutowiredAnnotationType(Class<? extends Annotation> autowiredAnnotationType) { + Assert.notNull(autowiredAnnotationType, "'autowiredAnnotationType' must not be null"); + this.autowiredAnnotationType = autowiredAnnotationType; + } + + /** + * Return the 'autowired' annotation type. + */ + protected Class<? extends Annotation> getAutowiredAnnotationType() { + return this.autowiredAnnotationType; + } + + /** + * Return the 'constructor' annotation type. + */ + protected Class<? extends Annotation> getConstructorAnnotationType() { + return this.constructorAnnotationType; + } + + /** + * Sets the 'constructor' annotation type. + */ + public void setConstructorAnnotationType(Class<? extends Annotation> constructorAnnotationType) { + Assert.notNull(constructorAnnotationType, "'constructorAnnotationType' type must not be null."); + this.constructorAnnotationType = constructorAnnotationType; + } + + /** + * This method is used to execute before a bean's initialization callback. + * + * @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessBeforeInitialization(java.lang.Object, java.lang.String) + */ + public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { + return bean; + } + + /** + * This method is used to execute after a bean's initialization callback. + * + * @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessAfterInitialization(java.lang.Object, java.lang.String) + */ + public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { + return bean; + } + + public Constructor[] determineCandidateConstructors(Class beanClass, String beanName) throws BeansException { + /*Constructor[] declaredConstructors = beanClass.getDeclaredConstructors(); + Method[] declaredMethods = beanClass.getDeclaredMethods(); + List candidates = new ArrayList(declaredConstructors.length); + + for (int i = 0; i < declaredMethods.length; i++) { + Method method = declaredMethods[i]; + Annotation annotation = method.getAnnotation(getConstructorAnnotationType()); + if (annotation != null) { + if (Modifier.isStatic(method.getModifiers())) { + throw new IllegalStateException("Constructor annotation is not supported on static methods"); + } + + if (candidates.size() == 1) { + throw new IllegalStateException("Only one method is allowed to have constructor annotation in a bean: " + method); + } + + candidates.add(method); + } + } + + return (Constructor[]) candidates.toArray(new Constructor[candidates.size()]);*/ + return null; + } +} diff --git a/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/InitDestroyAnnotationProcessor.java b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/InitDestroyAnnotationProcessor.java new file mode 100644 index 0000000000..390ee040f2 --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/InitDestroyAnnotationProcessor.java @@ -0,0 +1,75 @@ +/* + * 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.processor.tie; + +import java.lang.annotation.Annotation; + +import org.oasisopen.sca.annotation.Destroy; +import org.oasisopen.sca.annotation.Init; +import org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor; + +public class InitDestroyAnnotationProcessor extends InitDestroyAnnotationBeanPostProcessor { + + private static final long serialVersionUID = 0; + + private Class<? extends Annotation> initAnnotationType = Init.class; + private Class<? extends Annotation> destroyAnnotationType = Destroy.class; + + /** + * Gets init annotation type. + */ + protected Class<? extends Annotation> getInitAnnotationType() { + return this.initAnnotationType; + } + + /** + * Sets init annotation type. + */ + /* + * public void setInitAnnotationType(Class<? extends Annotation> + * initAnnotationType) { Assert.notNull(initAnnotationType, + * "Init annotation type must not be null."); this.initAnnotationType = + * initAnnotationType; } + */ + + /** + * Gets destroy annotation type. + */ + protected Class<? extends Annotation> getDestroyAnnotationType() { + return this.destroyAnnotationType; + } + + /** + * Sets destroy annotation type. + */ + /* + * public void setDestroyAnnotationType(Class<? extends Annotation> + * destroyAnnotationType) { Assert.notNull(destroyAnnotationType, + * "Destroy annotation type must not be null."); this.destroyAnnotationType + * = destroyAnnotationType; } + */ + + public InitDestroyAnnotationProcessor() { + // Set the @Init annotation type + setInitAnnotationType(initAnnotationType); + + // Set the @Destroy annotation type + setDestroyAnnotationType(destroyAnnotationType); + } +} diff --git a/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/PropertyAnnotationProcessor.java b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/PropertyAnnotationProcessor.java new file mode 100644 index 0000000000..ce3aafd3ef --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/PropertyAnnotationProcessor.java @@ -0,0 +1,163 @@ +/* + * 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.processor.tie; + +import java.beans.PropertyDescriptor; +import java.lang.annotation.Annotation; +import java.lang.reflect.Field; +import java.lang.reflect.Method; +import java.lang.reflect.Modifier; + +import org.oasisopen.sca.annotation.Property; +import org.springframework.beans.BeanUtils; +import org.springframework.beans.BeansException; +import org.springframework.beans.FatalBeanException; +import org.springframework.beans.factory.config.BeanPostProcessor; +import org.springframework.util.Assert; +import org.springframework.util.ReflectionUtils; + +public class PropertyAnnotationProcessor implements BeanPostProcessor { + + private Class<? extends Annotation> propertyAnnotationType = Property.class; + + private PropertyValueStub propertyValue; + + public PropertyAnnotationProcessor(PropertyValueStub propertyValue) { + this.propertyValue = propertyValue; + } + + /** + * Gets property annotation type. + */ + protected Class<? extends Annotation> getPropertyAnnotationType() { + return this.propertyAnnotationType; + } + + /** + * Sets property annotation type. + */ + public void setPropertyAnnotationType(Class<? extends Annotation> propertyAnnotationType) { + Assert.notNull(propertyAnnotationType, "'propertyAnnotationType' type must not be null."); + this.propertyAnnotationType = propertyAnnotationType; + } + + /** + * This method is used to execute before a bean's initialization callback. + * + * @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessBeforeInitialization(java.lang.Object, java.lang.String) + */ + public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { + processAnnotation(bean); + return bean; + } + + /** + * This method is used to execute after a bean's initialization callback. + * + * @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessAfterInitialization(java.lang.Object, java.lang.String) + */ + public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { + return bean; + } + + /** + * <p>Processes a beans fields for injection if it has a {@link Property} annotation.</p> + */ + protected void processAnnotation(final Object bean) { + + final Class<?> clazz = bean.getClass(); + + ReflectionUtils.doWithMethods(clazz, new ReflectionUtils.MethodCallback() { + public void doWith(Method method) { + + Property annotation = (Property)method.getAnnotation(getPropertyAnnotationType()); + + if (annotation != null) { + if (Modifier.isStatic(method.getModifiers())) { + throw new IllegalStateException("Property annotation is not supported on static methods"); + } + + /* + if (Modifier.isPrivate(method.getModifiers())) { + throw new IllegalStateException("Property annotation is not supported on private methods"); + } + */ + + if (method.getParameterTypes().length == 0) { + throw new IllegalStateException("Property annotation requires at least one argument: " + method); + } + + PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method); + if (pd != null) { + String propName = annotation.name(); + if ("".equals(propName)) { + injectProperty(bean, pd, propertyValue.getPropertyObj(pd.getPropertyType(), pd.getName())); + } else { + injectProperty(bean, pd, propertyValue.getPropertyObj(pd.getPropertyType(), propName)); + } + } + } + } + }); + + ReflectionUtils.doWithFields(clazz, new ReflectionUtils.FieldCallback() { + public void doWith(Field field) { + + Property annotation = (Property)field.getAnnotation(getPropertyAnnotationType()); + + if (annotation != null) { + if (Modifier.isStatic(field.getModifiers())) { + throw new IllegalStateException("Property annotation is not supported on static fields"); + } + + /* + if (Modifier.isPrivate(field.getModifiers())) { + throw new IllegalStateException("Property annotation is not supported on private fields"); + } + */ + + ReflectionUtils.makeAccessible(field); + + Object propertyObj = null; + String propName = annotation.name(); + if ("".equals(propName)) { + propertyObj = propertyValue.getPropertyObj(field.getType(), field.getName()); + } else { + propertyObj = propertyValue.getPropertyObj(field.getType(), propName); + } + + if (propertyObj != null) + ReflectionUtils.setField(field, bean, propertyObj); + } + } + }); + } + + public void injectProperty(Object bean, PropertyDescriptor pd, Object propertyObj) { + + if (propertyObj != null) { + try { + pd.getWriteMethod().invoke(bean, new Object[] {propertyObj}); + } catch (Throwable e) { + throw new FatalBeanException("Problem injecting property: " + e.getMessage(), e); + } + } + } + +} diff --git a/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/PropertyValueStub.java b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/PropertyValueStub.java new file mode 100644 index 0000000000..5a4b57ce81 --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/PropertyValueStub.java @@ -0,0 +1,55 @@ +/* + * 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.processor.tie; + +import java.lang.reflect.Method; + +/** + * This is the Spring runtime side stub for the corresponding Tuscany tie class. + * It enables the Tuscany code to invoke methods on a Spring context without + * needing to know about any Spring classes. See the PropertyValueTie class + * in the implementation-spring module for what the tie does. + */ +public class PropertyValueStub { + + private Object tie; + private Method getPropertyObj; + + public PropertyValueStub(Object tie) { + this.tie = tie; + Class<?> tieClass = tie.getClass(); + try { + getPropertyObj = tieClass.getMethod("getPropertyObj", new Class<?>[] {Class.class, String.class}); + } catch (Exception e) { + throw new RuntimeException(e); + } + } + + public Object getPropertyObj(Class<?> propertyType, String name) { + try { + + return getPropertyObj.invoke(tie, propertyType, name); + + } catch (Exception e) { + throw new RuntimeException(e); + } + } + +} diff --git a/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ReferenceAnnotationProcessor.java b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ReferenceAnnotationProcessor.java new file mode 100644 index 0000000000..24761d2cfa --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/ReferenceAnnotationProcessor.java @@ -0,0 +1,167 @@ +/* + * 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.processor.tie; + +import java.beans.PropertyDescriptor; +import java.lang.annotation.Annotation; +import java.lang.reflect.Field; +import java.lang.reflect.Method; +import java.lang.reflect.Modifier; + +import org.oasisopen.sca.annotation.Reference; +import org.springframework.beans.BeanUtils; +import org.springframework.beans.BeansException; +import org.springframework.beans.FatalBeanException; +import org.springframework.beans.factory.config.BeanPostProcessor; +import org.springframework.util.Assert; +import org.springframework.util.ReflectionUtils; + +public class ReferenceAnnotationProcessor implements BeanPostProcessor { + + private Class<? extends Annotation> referenceAnnotationType = Reference.class; + private ComponentStub component; + + public ReferenceAnnotationProcessor(ComponentStub component) { + this.component = component; + } + + /** + * Gets referece annotation type. + */ + protected Class<? extends Annotation> getReferenceAnnotationType() { + return this.referenceAnnotationType; + } + + /** + * Sets referece annotation type. + */ + public void setReferenceAnnotationType(Class<? extends Annotation> referenceAnnotationType) { + Assert.notNull(referenceAnnotationType, "'referenceAnnotationType' type must not be null."); + this.referenceAnnotationType = referenceAnnotationType; + } + + /** + * This method is used to execute before a bean's initialization callback. + * + * @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessBeforeInitialization(java.lang.Object, java.lang.String) + */ + public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { + processAnnotation(bean); + return bean; + } + + /** + * This method is used to execute after a bean's initialization callback. + * + * @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessAfterInitialization(java.lang.Object, java.lang.String) + */ + public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { + return bean; + } + + /** + * <p>Processes a beans fields for injection if it has a {@link Reference} annotation.</p> + */ + protected void processAnnotation(final Object bean) { + + final Class<?> clazz = bean.getClass(); + + ReflectionUtils.doWithMethods(clazz, new ReflectionUtils.MethodCallback() { + public void doWith(Method method) { + + Reference annotation = (Reference)method.getAnnotation(getReferenceAnnotationType()); + + if (annotation != null) { + if (Modifier.isStatic(method.getModifiers())) { + throw new IllegalStateException("Reference annotation is not supported on static methods"); + } + + /* + if (Modifier.isPrivate(method.getModifiers())) { + throw new IllegalStateException("Reference annotation is not supported on private methods"); + } + */ + + if (method.getParameterTypes().length == 0) { + throw new IllegalStateException( + "Reference annotation requires at least one argument: " + method); + } + + PropertyDescriptor pd = BeanUtils.findPropertyForMethod(method); + if (pd != null) { + String refName = annotation.name(); + if ("".equals(refName)) { + injectReference(bean, pd, pd.getName()); + } else { + injectReference(bean, pd, refName); + } + } + } + } + }); + + ReflectionUtils.doWithFields(clazz, new ReflectionUtils.FieldCallback() { + public void doWith(Field field) { + + Reference annotation = (Reference)field.getAnnotation(getReferenceAnnotationType()); + + if (annotation != null) { + if (Modifier.isStatic(field.getModifiers())) { + throw new IllegalStateException("Reference annotation is not supported on static fields"); + } + + /* + if (Modifier.isPrivate(field.getModifiers())) { + throw new IllegalStateException("Reference annotation is not supported on private fields"); + } + */ + + ReflectionUtils.makeAccessible(field); + + Object referenceObj = null; + String refName = annotation.name(); + if ("".equals(refName)) { + referenceObj = component.getService(field.getType(), field.getName()); + } else { + referenceObj = component.getService(field.getType(), refName); + } + + if (referenceObj != null) + ReflectionUtils.setField(field, bean, referenceObj); + } + } + }); + } + + /** + * Processes a property descriptor to inject a service. + */ + public void injectReference(Object bean, PropertyDescriptor pd, String name) { + + Object referenceObj = component.getService(pd.getPropertyType(), name); + + if (referenceObj != null) { + try { + pd.getWriteMethod().invoke(bean, new Object[] {referenceObj}); + } catch (Throwable e) { + throw new FatalBeanException("Problem injecting reference: " + e.getMessage(), e); + } + } + } +} diff --git a/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/SpringXMLLoaderTie.java b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/SpringXMLLoaderTie.java new file mode 100644 index 0000000000..82aa176219 --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/processor/tie/SpringXMLLoaderTie.java @@ -0,0 +1,57 @@ +/* + * 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.processor.tie; + +import java.net.URL; +import java.util.List; + +import org.apache.tuscany.sca.implementation.spring.context.tie.SCAGenericApplicationContext; +import org.springframework.beans.factory.xml.XmlBeanDefinitionReader; +import org.springframework.context.ApplicationContext; +import org.springframework.core.io.UrlResource; + +/** + * A tie that allows Tuscany to call Spring library to load the application context for the purpose of introspection + */ +public class SpringXMLLoaderTie { + + public static ApplicationContext createApplicationContext(Object scaParentContext, + ClassLoader classLoader, + List<URL> resources) { + if (classLoader == null) { + classLoader = Thread.currentThread().getContextClassLoader(); + } + + SCAGenericApplicationContext appCtx = + new SCAGenericApplicationContext((ApplicationContext)scaParentContext, classLoader); + XmlBeanDefinitionReader xmlReader = new XmlBeanDefinitionReader(appCtx); + + // REVIEW: [rfeng] How do we control the schema validation + xmlReader.setValidating(false); + + for (URL resource : resources) { + xmlReader.loadBeanDefinitions(new UrlResource(resource)); + } + + return appCtx; + + } + +} |