/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Emil Ong
*/
package com.caucho.ejb.gen;
import java.io.IOException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.HashMap;
import java.util.Set;
import javax.enterprise.inject.spi.AnnotatedMethod;
import com.caucho.config.gen.AspectGenerator;
import com.caucho.config.gen.AspectGeneratorUtil;
import com.caucho.config.reflect.BaseTypeAnnotated;
import com.caucho.config.reflect.VarType;
import com.caucho.inject.Module;
import com.caucho.java.JavaWriter;
/**
* Represents a non-business method that is package accessible.
* XXX extend NullGenerator?
*/
@Module
public class NonBusinessMethodGenerator<X> implements AspectGenerator<X>
{
private final AnnotatedMethod<? super X> _method;
public NonBusinessMethodGenerator(AnnotatedMethod<? super X> method)
{
_method = method;
if (method.isStatic())
throw new IllegalStateException();
}
// will always be @Override because we're only generating this method
// to hide the implementation method of a no-interface view.
protected boolean isOverride()
{
return true;
}
@Override
public AnnotatedMethod<? super X> getMethod()
{
return _method;
}
protected Set<VarType<?>> getTypeVariables()
{
BaseTypeAnnotated annType = (BaseTypeAnnotated) getMethod();
Set<VarType<?>> varSet = annType.getTypeVariables();
return varSet;
}
/**
* Returns the JavaMethod for this aspect.
*/
protected Method getJavaMethod()
{
return _method.getJavaMember();
}
protected Class<?> []getThrowsExceptions()
{
return getJavaMethod().getExceptionTypes();
}
/**
* Top-level generator.
*/
@Override
public void generate(JavaWriter out,
HashMap<String,Object> prologueMap)
throws IOException
{
int modifiers = getJavaMethod().getModifiers();
String accessModifier = null;
if (Modifier.isProtected(modifiers))
accessModifier = "protected";
else if (Modifier.isPublic(modifiers) || Modifier.isPrivate(modifiers))
throw new IllegalStateException(getJavaMethod().toString()
+ " must be protected or package protected");
String prefix = "";
String suffix = "";
String methodName = prefix + getJavaMethod().getName() + suffix;
AspectGeneratorUtil.generateHeader(out,
isOverride(),
accessModifier,
methodName,
getMethod(),
getTypeVariables(),
getThrowsExceptions());
out.println("{");
out.pushDepth();
out.println("throw new EJBException(\"Illegal non-business method call\");");
out.popDepth();
out.println("}");
}
/**
* Generates the static class prologue
*/
@Override
public void generateBeanPrologue(JavaWriter out,
HashMap<String,Object> map)
throws IOException
{
}
/**
* Generates initialization in the constructor
*/
@Override
public void generateBeanConstructor(JavaWriter out,
HashMap<String,Object> map)
throws IOException
{
}
/**
* Generates initialization in the constructor
*/
@Override
public void generateInject(JavaWriter out,
HashMap<String,Object> map)
throws IOException
{
}
/**
* Generates initialization in the proxy constructor
*/
@Override
public void generateProxyConstructor(JavaWriter out,
HashMap<String,Object> map)
throws IOException
{
}
/**
* Generates @PostConstruct code
*/
@Override
public void generatePostConstruct(JavaWriter out,
HashMap<String,Object> map)
throws IOException
{
}
@Override
public void generatePreDestroy(JavaWriter out,
HashMap<String,Object> map)
throws IOException
{
}
@Override
public void generateEpilogue(JavaWriter out,
HashMap<String,Object> map)
throws IOException
{
}
/**
* Generates destroy code
*/
@Override
public void generateDestroy(JavaWriter out,
HashMap<String,Object> map)
throws IOException
{
}
//
// method call interception
//
/**
* Generates the static class prologue
*/
@Override
public void generateMethodPrologue(JavaWriter out,
HashMap<String,Object> map)
throws IOException
{
}
//
// async dispatch method
//
@Override
public void generateAsync(JavaWriter out)
throws IOException
{
}
/**
* Generates code before the "try" block
* <code><pre>
* retType myMethod(...)
* {
* [pre-try]
* try {
* ...
* }
* </pre></code>
*/
@Override
public void generatePreTry(JavaWriter out)
throws IOException
{
}
/**
* Generates code in the "try" block before the call
* <code><pre>
* retType myMethod(...)
* {
* ...
* try {
* [pre-call]
* ret = super.myMethod(...)
* ...
* }
* </pre></code>
*/
@Override
public void generatePreCall(JavaWriter out)
throws IOException
{
}
/**
* Generates code for the invocation itself.
*/
@Override
public void generateCall(JavaWriter out)
throws IOException
{
}
/**
* Generates aspect code after the invocation.
* <code><pre>
* retType myMethod(...)
* {
* ...
* try {
* ...
* ret = super.myMethod(...)
* [post-call]
* return ret;
* } finally {
* ...
* }
* }
* </pre></code>
*/
@Override
public void generatePostCall(JavaWriter out)
throws IOException
{
}
@Override
public boolean isApplicationExceptionThrown()
{
return true;
}
/**
* Generates code for an application (checked) exception.
*/
@Override
public void generateApplicationException(JavaWriter out,
Class<?> exn)
throws IOException
{
}
/**
* Generates system (runtime) exception code for
* the method.
*/
@Override
public void generateSystemException(JavaWriter out,
Class<?> exn)
throws IOException
{
}
/**
* Generates the code in the finally block
* <code><pre>
* myRet myMethod(...)
* {
* try {
* ...
* } finally {
* [finally]
* }
* </pre></code>
*/
@Override
public void generateFinally(JavaWriter out)
throws IOException
{
}
@Override
public void generatePostFinally(JavaWriter out)
throws IOException
{
}
@Override
public String toString()
{
return getClass().getSimpleName() + "[" + _method + "]";
}
}