[gatein-commits] gatein SVN: r6342 - in sandbox/cdi_support/cdi/trunk: api/src/main/java/org/gatein/cdi/api/proxyproducer and 2 other directories.

Author: mstruk Date: 2011-04-24 17:29:13 -0400 (Sun, 24 Apr 2011) New Revision: 6342 Added: sandbox/cdi_support/cdi/trunk/api/src/main/java/org/gatein/cdi/api/proxyproducer/ sandbox/cdi_support/cdi/trunk/api/src/main/java/org/gatein/cdi/api/proxyproducer/ProxyProducer.java sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/InjectionPointImpl.java sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerBean.java sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerExtension.java sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerInvocationHandler.java Log: Added missing code Added: sandbox/cdi_support/cdi/trunk/api/src/main/java/org/gatein/cdi/api/proxyproducer/ProxyProducer.java =================================================================== --- sandbox/cdi_support/cdi/trunk/api/src/main/java/org/gatein/cdi/api/proxyproducer/ProxyProducer.java (rev 0) +++ sandbox/cdi_support/cdi/trunk/api/src/main/java/org/gatein/cdi/api/proxyproducer/ProxyProducer.java 2011-04-24 21:29:13 UTC (rev 6342) @@ -0,0 +1,13 @@ +package org.gatein.cdi.api.proxyproducer; + +import java.lang.annotation.ElementType; +import java.lang.annotation.Retention; +import java.lang.annotation.RetentionPolicy; +import java.lang.annotation.Target; + +(a)Retention(RetentionPolicy.RUNTIME) +(a)Target(ElementType.METHOD) +public @interface ProxyProducer +{ + +} Added: sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/InjectionPointImpl.java =================================================================== --- sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/InjectionPointImpl.java (rev 0) +++ sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/InjectionPointImpl.java 2011-04-24 21:29:13 UTC (rev 6342) @@ -0,0 +1,151 @@ +/* + * JBoss, Home of Professional Open Source + * Copyright 2010, Red Hat, Inc., and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed 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.gatein.cdi.impl.proxyproducer; + +import java.lang.annotation.Annotation; +import java.lang.reflect.Member; +import java.lang.reflect.Type; +import java.util.HashSet; +import java.util.Set; + +import javax.enterprise.inject.Default; +import javax.enterprise.inject.spi.Annotated; +import javax.enterprise.inject.spi.AnnotatedField; +import javax.enterprise.inject.spi.AnnotatedParameter; +import javax.enterprise.inject.spi.Bean; +import javax.enterprise.inject.spi.BeanManager; +import javax.enterprise.inject.spi.InjectionPoint; +import javax.enterprise.util.AnnotationLiteral; + +/** + * A simple implementation of InjectionPoint + * + * @author stuart + * + */ +public class InjectionPointImpl implements InjectionPoint +{ + + public InjectionPointImpl(AnnotatedField<?> field, Set<Annotation> qualifiers, Bean<?> bean, boolean trans, boolean delegate) + { + this.annotated = field; + this.member = field.getJavaMember(); + this.qualifiers = new HashSet<Annotation>(qualifiers); + this.type = field.getJavaMember().getGenericType(); + this.trans = trans; + this.delegate = delegate; + this.bean = bean; + } + + public InjectionPointImpl(AnnotatedField<?> field, BeanManager beanManager, Bean<?> bean, boolean trans, boolean delegate) + { + this.annotated = field; + this.member = field.getJavaMember(); + this.qualifiers = new HashSet<Annotation>(); + this.type = field.getJavaMember().getGenericType(); + this.trans = trans; + this.delegate = delegate; + this.bean = bean; + for (Annotation a : field.getAnnotations()) + { + if (beanManager.isQualifier(a.annotationType())) + { + qualifiers.add(a); + } + } + } + + public InjectionPointImpl(AnnotatedParameter<?> param, Set<Annotation> qualifiers, Bean<?> bean, boolean trans, boolean delegate) + { + this.annotated = param; + this.member = param.getDeclaringCallable().getJavaMember(); + this.qualifiers = new HashSet<Annotation>(qualifiers); + this.trans = trans; + this.delegate = delegate; + this.bean = bean; + this.type = param.getBaseType(); + } + + public InjectionPointImpl(AnnotatedParameter<?> param, BeanManager beanManager, Bean<?> bean, boolean trans, boolean delegate) + { + this.annotated = param; + this.member = param.getDeclaringCallable().getJavaMember(); + this.qualifiers = new HashSet<Annotation>(); + this.trans = trans; + this.delegate = delegate; + this.bean = bean; + this.type = param.getBaseType(); + for (Annotation a : annotated.getAnnotations()) + { + if (beanManager.isQualifier(a.annotationType())) + { + qualifiers.add(a); + } + } + qualifiers.add(new AnnotationLiteral<Default>() {}); + } + + private final Annotated annotated; + + private final Member member; + + private final Bean<?> bean; + + private final Set<Annotation> qualifiers; + + private final Type type; + + private final boolean trans; + + private final boolean delegate; + + public Annotated getAnnotated() + { + return annotated; + } + + public Bean<?> getBean() + { + return bean; + } + + public Member getMember() + { + return member; + } + + public Set<Annotation> getQualifiers() + { + return qualifiers; + } + + public Type getType() + { + return type; + } + + public boolean isDelegate() + { + return delegate; + } + + public boolean isTransient() + { + return trans; + } + +} Added: sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerBean.java =================================================================== --- sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerBean.java (rev 0) +++ sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerBean.java 2011-04-24 21:29:13 UTC (rev 6342) @@ -0,0 +1,234 @@ +/* + * JBoss, Home of Professional Open Source + * Copyright 2010, Red Hat, Inc., and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed 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.gatein.cdi.impl.proxyproducer; + +import java.lang.annotation.Annotation; +import java.lang.reflect.Method; +import java.lang.reflect.ParameterizedType; +import java.lang.reflect.Type; +import java.util.Collections; +import java.util.HashSet; +import java.util.Set; + +import javassist.util.proxy.MethodFilter; +import javassist.util.proxy.ProxyFactory; +import javassist.util.proxy.ProxyObject; +import org.jboss.interceptor.util.proxy.TargetInstanceProxy; + +import javax.enterprise.context.Dependent; +import javax.enterprise.context.spi.CreationalContext; +import javax.enterprise.inject.Default; +import javax.enterprise.inject.spi.AnnotatedMethod; +import javax.enterprise.inject.spi.Bean; +import javax.enterprise.inject.spi.BeanManager; +import javax.enterprise.inject.spi.InjectionPoint; +import javax.enterprise.util.AnnotationLiteral; +import javax.inject.Named; + +/** + * Bean implementation that produces a JDK proxy + * + * when a method is invoked on the proxy it calls the managed producer method + * and invokes the method on the returned object + * + * @author stuart + * @author <a href="mailto:mstrukel@redhat.com">Marko Strukelj</a> + * + * @param <M> + */ +public class ProxyProducerBean<M> implements Bean<M> +{ + + final private Class<?> beanClass; + + final private String name; + + final private Set<Annotation> qualifiers; + + final private Set<Type> types; + + final private Class<M> proxyClass; + + final private BeanManager manager; + + final private AnnotatedMethod<?> method; + + private final static Annotation[] defaultQualifiers = { new AnnotationLiteral<Default>() + { + } }; + + public ProxyProducerBean(AnnotatedMethod<?> method, BeanManager manager) + { + this.method = method; + beanClass = method.getDeclaringType().getJavaClass(); + // get the name + if (method.isAnnotationPresent(Named.class)) + { + name = method.getAnnotation(Named.class).value(); + } + else + { + name = null; + } + // get the qualifiers + qualifiers = new HashSet<Annotation>(); + for (Annotation a : method.getAnnotations()) + { + if (manager.isQualifier(a.annotationType())) + { + qualifiers.add(a); + } + } + if (qualifiers.isEmpty()) + { + qualifiers.add(new AnnotationLiteral<Default>() + { + }); + } + // get the bean types + types = new HashSet<Type>(); + Set<Class<?>> classes = new HashSet<Class<?>>(); + types.add(method.getBaseType()); + types.add(Object.class); + /* + for (Type t : method.getTypeClosure()) + { + if (t instanceof Class<?>) + { + Class<?> c = (Class<?>) t; + types.add(c); + classes.add(c); + } + else if (t instanceof ParameterizedType) + { + ParameterizedType p = (ParameterizedType) t; + Class<?> c = (Class<?>) p.getRawType(); + types.add(t); + } + break; + } + */ + this.manager = manager; + + // build the properties + /* + Class<?>[] iarray = new Class[classes.size()]; + int count = 0; + for (Class<?> c : classes) + { + iarray[count++] = c; + } + */ + ProxyFactory f = new ProxyFactory(); + Class<?> retType = method.getJavaMember().getReturnType(); + if (retType.isInterface()) + { + f.setSuperclass(Object.class); + Class<?>[] ifaces = { retType, TargetInstanceProxy.class }; + f.setInterfaces(ifaces); + } + else + { + f.setSuperclass(retType); + Class<?>[] ifaces = { TargetInstanceProxy.class }; + f.setInterfaces(ifaces); + } + + f.setFilter(new MethodFilter() + { + public boolean isHandled(Method m) + { + // ignore finalize() + return !m.getName().equals("finalize"); + } + }); + proxyClass = f.createClass(); + + } + + public Class<?> getBeanClass() + { + return beanClass; + } + + public Set<InjectionPoint> getInjectionPoints() + { + return Collections.emptySet(); + } + + public String getName() + { + return name; + } + + public Set<Annotation> getQualifiers() + { + return qualifiers; + } + + /** + * the proxies that are injected all have Dependant scope + */ + public Class<? extends Annotation> getScope() + { + return Dependent.class; + } + + public Set<Class<? extends Annotation>> getStereotypes() + { + return Collections.emptySet(); + } + + public Set<Type> getTypes() + { + return types; + } + + public boolean isAlternative() + { + return false; + } + + public boolean isNullable() + { + return false; + } + + public M create(CreationalContext<M> creationalContext) + { + Set<Bean<?>> beans = manager.getBeans(InjectionPoint.class, defaultQualifiers); + Bean<?> injectionPointBean = (Bean<?>) beans.iterator().next(); + InjectionPoint injectionPoint = (InjectionPoint) manager.getReference(injectionPointBean, InjectionPoint.class, creationalContext); + ProxyProducerInvocationHandler hdl = new ProxyProducerInvocationHandler(manager, this.method, this, injectionPoint); + try + { + M obj = proxyClass.newInstance(); + ((ProxyObject) obj).setHandler(hdl); + creationalContext.push(obj); + return obj; + } + catch (Exception e) + { + throw new RuntimeException(e); + } + } + + public void destroy(M instance, CreationalContext<M> creationalContext) + { + creationalContext.release(); + } +} Added: sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerExtension.java =================================================================== --- sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerExtension.java (rev 0) +++ sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerExtension.java 2011-04-24 21:29:13 UTC (rev 6342) @@ -0,0 +1,65 @@ +/* + * JBoss, Home of Professional Open Source + * Copyright 2010, Red Hat, Inc., and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed 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.gatein.cdi.impl.proxyproducer; + +import org.gatein.cdi.api.proxyproducer.ProxyProducer; + +import java.util.HashSet; +import java.util.Set; + +import javax.enterprise.event.Observes; +import javax.enterprise.inject.spi.AfterBeanDiscovery; +import javax.enterprise.inject.spi.AnnotatedMethod; +import javax.enterprise.inject.spi.BeanManager; +import javax.enterprise.inject.spi.Extension; +import javax.enterprise.inject.spi.ProcessAnnotatedType; + +/** + * An extension that allows the use of @ManagedProducer methods + * + * these methods work in a similar manner to @Unwrap methods in seam 2 + * + * @author stuart + * + */ +public class ProxyProducerExtension implements Extension +{ + + final private Set<ProxyProducerBean<?>> beans = new HashSet<ProxyProducerBean<?>>(); + + public void processAnnotatedType(@Observes ProcessAnnotatedType<?> type, BeanManager manager) + { + for (AnnotatedMethod<?> m : type.getAnnotatedType().getMethods()) + { + if (m.isAnnotationPresent(ProxyProducer.class)) + { + // we have a managed producer + // lets make a note of it and register it later + beans.add(new ProxyProducerBean(m, manager)); + } + } + } + + public void afterBeanDiscovery(@Observes AfterBeanDiscovery afterBean) + { + for (ProxyProducerBean<?> b : beans) + { + afterBean.addBean(b); + } + } + +} Added: sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerInvocationHandler.java =================================================================== --- sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerInvocationHandler.java (rev 0) +++ sandbox/cdi_support/cdi/trunk/impl/src/main/java/org/gatein/cdi/impl/proxyproducer/ProxyProducerInvocationHandler.java 2011-04-24 21:29:13 UTC (rev 6342) @@ -0,0 +1,137 @@ +/* + * JBoss, Home of Professional Open Source + * Copyright 2010, Red Hat, Inc., and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed 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.gatein.cdi.impl.proxyproducer; + +import java.lang.annotation.Annotation; +import java.lang.reflect.Method; +import java.lang.reflect.Type; +import java.util.HashSet; +import java.util.Set; + +import javassist.util.proxy.MethodHandler; + +import javax.enterprise.context.spi.CreationalContext; +import javax.enterprise.inject.AmbiguousResolutionException; +import javax.enterprise.inject.UnsatisfiedResolutionException; +import javax.enterprise.inject.spi.AnnotatedMethod; +import javax.enterprise.inject.spi.Bean; +import javax.enterprise.inject.spi.BeanManager; +import javax.enterprise.inject.spi.InjectionPoint; + +import org.jboss.interceptor.util.proxy.TargetInstanceProxy; + +/** + * @author <a href="mailto:mstrukel@redhat.com">Marko Strukelj</a> + */ +public class ProxyProducerInvocationHandler implements MethodHandler +{ + + final private BeanManager manager; + final private AnnotatedMethod<?> annotatedMethod; + final private Method method; + final private Bean<?> bean; + final private InjectionPoint[] injectionPoints; + final private Bean<?> mainClassBean; + final private InjectionPoint injectionPoint; + + + public ProxyProducerInvocationHandler(BeanManager manager, AnnotatedMethod<?> method, Bean<?> bean, InjectionPoint injectionPoint) + { + this.manager = manager; + this.method = method.getJavaMember(); + this.annotatedMethod = method; + this.bean = bean; + injectionPoints = new InjectionPoint[this.method.getParameterTypes().length]; + for (int i = 0; i < injectionPoints.length; ++i) + { + injectionPoints[i] = new InjectionPointImpl(method.getParameters().get(i), manager, bean, false, false); + } + Type mainType = method.getDeclaringType().getBaseType(); + HashSet<Annotation> mainClassQualifiers = new HashSet<Annotation>(); + for (Annotation a : method.getDeclaringType().getAnnotations()) + { + if (manager.isQualifier(a.annotationType())) + { + mainClassQualifiers.add(a); + } + } + Set<Bean<?>> beans = manager.getBeans(mainType, mainClassQualifiers.toArray(new Annotation[0])); + if (beans.isEmpty()) + { + throw new UnsatisfiedResolutionException("Could not find declaring bean for managed producer method " + method.getDeclaringType().getJavaClass() + "." + this.method.getName()); + } + else if (beans.size() > 1) + { + throw new AmbiguousResolutionException("Could not find declaring bean for managed producer method " + method.getDeclaringType().getJavaClass() + "." + this.method.getName()); + } + mainClassBean = beans.iterator().next(); + this.injectionPoint = injectionPoint; + } + + public Object invoke(Object proxy, Method thisMethod, Method m, Object[] args) throws Throwable + { + CreationalContext<?> ctx = manager.createCreationalContext(bean); + try + { + Object[] params = new Object[method.getParameterTypes().length]; + for (int i = 0; i < this.method.getParameterTypes().length; ++i) + { + if (InjectionPoint.class.isAssignableFrom(this.method.getParameterTypes()[i])) + { + params[i] = injectionPoint; + } + else + { + params[i] = manager.getInjectableReference(injectionPoints[i], ctx); + } + } + Object base = manager.getReference(mainClassBean, annotatedMethod.getDeclaringType().getJavaClass(), ctx); + + Object result = method.invoke(base, params); + + Class declaringClass = thisMethod.getDeclaringClass(); + if (declaringClass == TargetInstanceProxy.class) + { + if ("getTargetInstance".equals(thisMethod.getName())) + return result; + else if ("getTargetClass".equals(thisMethod.getName())) + { + return method.getReturnType(); + } + } + + if (result == null) + { + if (declaringClass == Object.class && "toString".equals(thisMethod.getName())) + { + return proxy.getClass() + "@ -- No delegate --"; + } + else + { + throw new IllegalStateException("Proxy has no delegate (" + method + " returned null)"); + } + } + Object ret = thisMethod.invoke(result, args); + return ret; + } + finally + { + ctx.release(); + } + } + +}