/*
* 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 Scott Ferguson
*/
package com.caucho.ejb.cfg;
import java.lang.reflect.Method;
import java.util.ArrayList;
import javax.enterprise.inject.spi.AnnotatedMethod;
import com.caucho.config.ConfigException;
import com.caucho.config.types.Signature;
import com.caucho.inject.Module;
import com.caucho.util.CharBuffer;
@Module
public class MethodSignature {
private String _ejbName;
private String _methodName;
private String _methodIntf;
private Object _value;
private ArrayList<String> _paramTypes;
public MethodSignature()
{
}
public void setEJBName(String ejbName)
{
_ejbName = ejbName;
}
public String getEJBName()
{
return _ejbName;
}
public void setMethodName(String name)
throws ConfigException
{
setName(name);
}
public String getName()
{
return _methodName;
}
public void setName(String methodName)
throws ConfigException
{
if (methodName.indexOf('(') < 0) {
_methodName = methodName;
return;
}
Signature sig = new Signature();
sig.addText(methodName);
sig.init();
_methodName = sig.getName();
String []params = sig.getParameterTypes();
if (params != null) {
_paramTypes = new ArrayList<String>();
for (int i = 0; i < params.length; i++)
_paramTypes.add(params[i]);
}
}
public void setDescription(String value)
{
}
public void addText(String text)
throws ConfigException
{
setName(text);
}
/**
* Adds a method parameter.
*/
public void addParam(String typeName)
{
if (_paramTypes == null)
_paramTypes = new ArrayList<String>();
_paramTypes.add(typeName);
}
/**
* Adds a method parameter.
*/
public MethodParams createMethodParams()
{
return new MethodParams();
}
/**
* Sets the parameters to zero to distinguish between
* methods with zero arguments and methods which don't
* specify the requirements.
*/
public void setHasParams()
{
if (_paramTypes == null)
_paramTypes = new ArrayList<String>();
}
/**
* Sets the method interface.
*/
public void setMethodIntf(String intf)
{
_methodIntf = intf;
}
boolean isHome()
{
return _methodIntf == null || _methodIntf.equals("Home");
}
boolean isRemote()
{
return _methodIntf == null || _methodIntf.equals("Remote");
}
boolean isLocalHome()
{
return _methodIntf == null || _methodIntf.equals("LocalHome");
}
boolean isLocal()
{
return _methodIntf == null || _methodIntf.equals("Local");
}
int getCost()
{
int cost = _methodIntf == null ? 0 : 1;
if (_methodName.equals("*"))
return cost;
else if (_paramTypes == null)
return 2 + cost;
else
return 4 + cost;
}
public boolean isMatch(Method method, String intf)
{
if (method == null)
return _methodName.equals("*");
else
return isMatch(method.getName(), method.getParameterTypes(), intf);
}
public boolean isMatch(AnnotatedMethod<?> annMethod, String intf)
{
if (annMethod == null)
return _methodName.equals("*");
Method method = annMethod.getJavaMember();
return isMatch(method.getName(), method.getParameterTypes(), intf);
}
public boolean isMatch(String methodName, Class<?> []params, String intf)
{
if (_methodIntf != null && ! _methodIntf.equals(intf))
return false;
else
return isMatch(methodName, params);
}
public boolean isMatch(String methodName, Class<?> []params)
{
if (_methodName == null)
return false;
else if (_methodName.equals("*"))
return true;
else if (! _methodName.equals(methodName))
return false;
else if (_paramTypes == null)
return true;
if (params.length != _paramTypes.size())
return false;
for (int i = 0; i < params.length; i++) {
String name = params[i].getName();
String param = (String) _paramTypes.get(i);
if (! name.equals(param) && ! name.endsWith("." + param))
return false;
}
return true;
}
void setValue(Object value)
{
_value = value;
}
Object getValue()
{
return _value;
}
public int hashCode()
{
return _methodName.hashCode();
}
public boolean equals(Object o)
{
if (! (o instanceof MethodSignature))
return false;
MethodSignature cfg = (MethodSignature) o;
if (! _methodName.equals(cfg._methodName))
return false;
if (_paramTypes == null || cfg._paramTypes == null)
return _paramTypes == cfg._paramTypes;
if (_paramTypes.size() != cfg._paramTypes.size())
return false;
for (int i = 0; i < _paramTypes.size(); i++)
if (! _paramTypes.get(i).equals(cfg._paramTypes.get(i)))
return false;
if (_methodIntf == cfg._methodIntf)
return true;
else if (_methodIntf == null || cfg._methodIntf == null)
return false;
else
return _methodIntf.equals(cfg._methodIntf);
}
public String toSignatureString()
{
CharBuffer cb = new CharBuffer();
cb.append(_methodName);
cb.append("(");
for (int i = 0; _paramTypes != null && i < _paramTypes.size(); i++) {
if (i != 0)
cb.append(", ");
cb.append(_paramTypes.get(i));
}
cb.append(")");
return cb.toString();
}
public String toString()
{
return ("MethodSignature[" + toSignatureString() + "]");
}
public class MethodParams {
public void addMethodParam(String value)
{
addParam(value);
}
}
}