com.caucho.config.reflect.ParamType Maven / Gradle / Ivy
/*
* Copyright (c) 1998-2012 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.config.reflect;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.lang.reflect.TypeVariable;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Set;
import com.caucho.config.inject.InjectManager;
import com.caucho.inject.Module;
/**
* GenericParameterized type: Foo
*/
@Module
public class ParamType extends BaseType implements ParameterizedType
{
private Class _type;
private BaseType []_param;
private Type []_actualArguments;
private HashMap _paramMap;
public ParamType(Class type,
BaseType []param,
HashMap paramMap)
{
_type = type;
_param = param;
_paramMap = paramMap;
_actualArguments = new Type[param.length];
for (int i = 0; i < param.length; i++) {
_actualArguments[i] = param[i].toType();
}
/*
if (type.equals(Set.class)) {
// System.out.println("PTYPE: " + this + " " + type + " " + paramMap);
// Thread.dumpStack();
}
*/
}
@Override
public Class getRawClass()
{
return _type;
}
@Override
public Type toType()
{
return this;
}
@Override
public Type []getActualTypeArguments()
{
return _actualArguments;
}
@Override
public Type getOwnerType()
{
return null;
}
@Override
public BaseType []getParameters()
{
return _param;
}
@Override
public boolean isGeneric()
{
// ioc/07f0
for (BaseType type : _param) {
if (type.isGeneric())
return true;
}
return false;
}
@Override
public boolean isGenericVariable()
{
// ioc/0190, ioc/0192
for (BaseType type : _param) {
if (type.isVariable())
return true;
}
return false;
}
@Override
public HashMap getParamMap()
{
return _paramMap;
}
@Override
public Type getRawType()
{
return _type;
}
@Override
protected void fillTypeClosure(InjectManager manager, Set typeSet)
{
typeSet.add(toType());
for (Type type : _type.getGenericInterfaces()) {
BaseType ifaceType = createForSource(type, _paramMap, null);
ifaceType.fillTypeClosure(manager, typeSet);
}
Type superclass = _type.getGenericSuperclass();
if (superclass == null)
return;
BaseType superType = createForSource(superclass, _paramMap, null);
superType.fillTypeClosure(manager, typeSet);
}
@Override
public BaseType fill(BaseType ...types)
{
TypeVariable []vars = _type.getTypeParameters();
if (vars.length != types.length)
throw new IllegalStateException();
HashMap paramMap = new HashMap(_paramMap);
for (int i = 0; i < vars.length; i++) {
TypeVariable> var = vars[i];
paramMap.put(var.getName(), types[i]);
}
return new ParamType(_type, types, paramMap);
}
@Override
public void fillSyntheticTypes(Set> varTypeList)
{
for (BaseType param : _param) {
param.fillSyntheticTypes(varTypeList);
}
}
@Override
public boolean isAssignableFrom(BaseType type)
{
// ioc/0062
if (! getRawClass().isAssignableFrom(type.getRawClass()))
return false;
if (! getRawClass().equals(type.getRawClass())) {
// ioc/0pb0
return false;
}
BaseType []paramA = getParameters();
BaseType []paramB = type.getParameters();
if (paramA.length != paramB.length)
return false;
for (int i = 0; i < paramA.length; i++) {
if (! paramA[i].isParamAssignableFrom(paramB[i])) {
return false;
}
}
return true;
}
@Override
public boolean isParamAssignableFrom(BaseType type)
{
if (! (type instanceof ParamType))
return false;
ParamType pType = (ParamType) type;
Type rawType = pType.getRawType();
if (! _type.equals(rawType))
return false;
BaseType []paramA = getParameters();
BaseType []paramB = type.getParameters();
if (paramA.length != paramB.length)
return false;
for (int i = 0; i < paramA.length; i++) {
if (! paramA[i].isParamAssignableFrom(paramB[i])) {
return false;
}
}
return true;
}
/**
* Convert Foo to Foo for CDI extension matching.
*/
@Override
public BaseType extendGenericType()
{
BaseType []oldParams = getParameters();
BaseType []newParams = new BaseType[oldParams.length];
boolean isExtend = false;
for (int i = 0; i < newParams.length; i++) {
BaseType param = oldParams[i];
if (param instanceof ClassType
|| param instanceof ParamType) {
BaseType []upperBounds = new BaseType[] { param };
BaseType []lowerBounds = new BaseType[] { };//ObjectType.OBJECT_TYPE };
BaseType extParam = new WildcardTypeImpl(lowerBounds, upperBounds);
newParams[i] = extParam;
isExtend = true;
}
else {
newParams[i] = param;
}
}
if (isExtend) {
ParamType extendsType = new ParamType(_type, newParams, _paramMap);
return extendsType;
}
else {
return this;
}
}
@Override
public int hashCode()
{
return _type.hashCode() ^ Arrays.hashCode(_param);
}
public boolean equals(Object o)
{
if (o == this)
return true;
else if (! (o instanceof ParamType))
return false;
ParamType type = (ParamType) o;
if (! _type.equals(type._type))
return false;
if (_param.length != type._param.length)
return false;
for (int i = 0; i < _param.length; i++) {
if (! _param[i].equals(type._param[i]))
return false;
}
return true;
}
@Override
public String getSimpleName()
{
StringBuilder sb = new StringBuilder();
sb.append(getRawClass().getSimpleName());
sb.append("<");
for (int i = 0; i < _param.length; i++) {
if (i != 0)
sb.append(",");
sb.append(_param[i].getSimpleName());
}
sb.append(">");
return sb.toString();
}
public String toString()
{
StringBuilder sb = new StringBuilder();
sb.append(getRawClass().toString());
sb.append("<");
for (int i = 0; i < _param.length; i++) {
if (i != 0)
sb.append(",");
sb.append(_param[i]);
}
sb.append(">");
return sb.toString();
}
}