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DefaultMethodMetadata.java
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DefaultMethodMetadata.java
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/*
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc. and/or its affiliates, 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.jboss.interceptor.reader;
import java.io.ObjectStreamException;
import java.io.Serializable;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.jboss.interceptor.builder.MethodReference;
import org.jboss.interceptor.proxy.InterceptorException;
import org.jboss.interceptor.spi.metadata.MethodMetadata;
import org.jboss.interceptor.spi.model.InterceptionType;
import org.jboss.interceptor.spi.model.InterceptionTypeRegistry;
import org.jboss.interceptor.util.ReflectionUtils;
/**
* Represents information about an interceptor method
*
* @author Marius Bogoevici
*/
public class DefaultMethodMetadata<M> implements MethodMetadata, Serializable
{
private static final long serialVersionUID = -4538617003189564552L;
private Method javaMethod;
private Set<InterceptionType> supportedInterceptorTypes = new HashSet<InterceptionType>();
private DefaultMethodMetadata(M methodReference, AnnotatedMethodReader<M> annotationReader)
{
this.javaMethod = annotationReader.getJavaMethod(methodReference);
for (InterceptionType interceptionType: InterceptionTypeRegistry.getSupportedInterceptionTypes())
{
if (annotationReader.getAnnotation(InterceptionTypeRegistry.getAnnotationClass(interceptionType), methodReference) != null)
{
supportedInterceptorTypes.add(interceptionType);
}
}
}
private DefaultMethodMetadata(Set<InterceptionType> interceptionTypes, Method method)
{
this.supportedInterceptorTypes = interceptionTypes;
this.javaMethod = method;
}
public static <M> MethodMetadata of(M methodReference, AnnotatedMethodReader<M> methodReader)
{
return new DefaultMethodMetadata(methodReference, methodReader);
}
public static MethodMetadata of(Method method)
{
return new DefaultMethodMetadata(method, new ReflectiveAnnotatedMethodReader());
}
public Set<InterceptionType> getSupportedInterceptionTypes()
{
return supportedInterceptorTypes;
}
public Method getJavaMethod()
{
return javaMethod;
}
public Class<?> getReturnType()
{
return javaMethod.getReturnType();
}
private Object writeReplace()
{
return new DefaultMethodMetadataSerializationProxy(supportedInterceptorTypes, MethodReference.of(this));
}
private static class DefaultMethodMetadataSerializationProxy implements Serializable
{
private Set<InterceptionType> supportedInterceptionTypes;
private MethodReference methodReference;
private DefaultMethodMetadataSerializationProxy(Set<InterceptionType> supportedInterceptionTypes, MethodReference methodReference)
{
this.supportedInterceptionTypes = supportedInterceptionTypes;
this.methodReference = methodReference;
}
private Object readResolve() throws ObjectStreamException
{
ClassLoader classLoader = ReflectionUtils.getThreadContextClassLoader(true);
Method method = null;
try
{
String[] argumentTypeNames = methodReference.getMethodSignature().getArgumentTypeNames();
List<Class<?>> argumentTypes = new ArrayList<Class<?>>();
for (String argumentTypeName : argumentTypeNames)
{
argumentTypes.add(classLoader.loadClass(argumentTypeName));
}
Class<?>[] argumentTypesArray = argumentTypes.toArray(new Class<?>[argumentTypes.size()]);
method = classLoader.loadClass(methodReference.getDeclaringClassName())
.getDeclaredMethod(methodReference.getMethodSignature().getMethodName(), argumentTypesArray);
}
catch (Exception e)
{
throw new InterceptorException(e);
}
return new DefaultMethodMetadata(supportedInterceptionTypes, method);
}
}
}