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//start of Factory.java
//TEXT_STYLE:CODE=Shift_JIS(Japanese):RET_CODE=CRLF
/**
* Factory.java
*
* Copyright (C) 2002 Michel Ishizuka All rights reserved.
*
* ȉ̏ɓӂȂ\[XƃoCi`̍ĔzzƎgp
* ύX̗Lɂ炸B
*
* PD\[XR[h̍ĔzzɂĒ쌠\ ̏̃Xg
* щL̐ێȂĂ͂ȂȂB
*
* QDoCi`̍ĔzzɂĒ쌠\ ̏̃Xg
* щL̐gp ̑̔zz
* ܂ގɋLqȂȂȂB
*
* ̃\tgEFA͐Β˔ڂɂĖۏŒA̖
* IBłƂۏAilLƂۏɂƂǂ܂炸A
* Ȃ閾IшÎIȕۏȂB
* Β˔ڂ ̃\tgEFA̎gpɂ钼ړIAԐړIA
* IAȁAT^IȁA邢͕KRIȑQ(gpɂf[^
* AƖ̒f〈܂Ăv̈⎸Ai
* T[rX̓l邪AĂꂾɌ肳Ȃ
* Q)ɑāAȂ鎖Ԃ̌ƂȂƂĂA_̐
* C△ߎӔC܂ ȂӔC낤ƂAƂꂪs
* ŝׂ߂łƂĂA܂͂̂悤ȑQ̉\
* ĂƂĂ̐ӔCȂ̂ƂB
*/
package jp.gr.java_conf.dangan.lang.reflect;
//import classes and interfaces
import java.lang.reflect.Constructor;
import java.text.NumberFormat;
//import exceptions
import java.lang.NoSuchMethodException;
import java.lang.ClassNotFoundException;
import java.lang.InstantiationException;
import java.lang.reflect.InvocationTargetException;
/**
* NX ɂȂObject ̔zA
* createInstance() ɂĐVCX^Xo
* [eBeBNXB
*
* <pre>
* -- revision history --
* $Log: Factory.java,v $
* Revision 1.0 2002/10/01 00:00:00 dangan
* first edition
* add to version control
*
* </pre>
*
* @author $Author: dangan $
* @version $Revision: 1.0 $
*/
public class Factory{
//------------------------------------------------------------------
// constructor
//------------------------------------------------------------------
// private Factory()
//------------------------------------------------------------------
/**
* ftHgRXgN^B
* gpsB
*/
private Factory(){ }
//------------------------------------------------------------------
// shared method
//------------------------------------------------------------------
// create instance
//------------------------------------------------------------------
// public static Object createInstance( String classname, Object[] args )
// public static Object createInstance( Class clas, Object[] args )
//------------------------------------------------------------------
/**
* classname ŎNX̃CX^XB
* RXgN^ɂ args ̌^ƈv̂gpB
*
* @param classname NX
* @param args ̔z
*
* @return ꂽCX^X
* args ƌ^}b`
* RXgN^݂Ȃꍇ null
*
* @exception InvocationTargetException
* RXgN^ŗOꍇ
*
* @exception InstantiationException
* abstractNX̃CX^X悤Ƃꍇ
*
* @exception ClassNotFoundException
* classname ŎNX݂Ȃꍇ
*/
public static Object createInstance( String classname, Object[] args )
throws InvocationTargetException,
InstantiationException,
ClassNotFoundException,
NoSuchMethodException {
return Factory.createInstance( Class.forName( classname ), args );
}
/**
* type ŎNX̃CX^XB
* RXgN^ɂ args ̌^ƈv̂gpB
*
* @param type NX
* @param args ̔z
*
* @return ꂽCX^X
* args ƌ^}b`
* RXgN^݂Ȃꍇ null
*
* @exception InvocationTargetException
* RXgN^ŗOꍇ
*
* @exception InstantiationException
* abstractNX̃CX^X悤Ƃꍇ
*/
public static Object createInstance( Class type, Object[] args )
throws InvocationTargetException,
InstantiationException,
NoSuchMethodException {
Constructor constructor = Factory.getMatchFullConstructor( type, args );
if( constructor == null ){
constructor = Factory.getConstructor( type, args );
if( constructor != null )
args = Type.parseAll( constructor.getParameterTypes(), args );
}
if( constructor != null ){
try{
return constructor.newInstance( args );
}catch( IllegalAccessException exception ){
throw new IllegalAccessError( exception.toString() );
}
}else{
throw new NoSuchMethodException();
}
}
//------------------------------------------------------------------
// shared method
//------------------------------------------------------------------
// get constructor
//------------------------------------------------------------------
// public static Constructor getConstructor( String classname,
// Object[] args )
// public static Constructor getConstructor( Class type, Object[] args )
// public static Constructor getConstructor( String classname,
// Object[] args, boolean all )
// public static Constructor getConstructor( Class type,
// Object[] args, boolean all )
//------------------------------------------------------------------
/**
* classname ŎNX public ȃRXgN^̂A
* args Type.parse ꍇAƂĎ邱Ƃ
* ł̂B
*
* @param classname NXB
* ̌^̃CX^X邽߂
* RXgN^B
* @param args zB
* null ܂߂ĂǂAnull gpꍇ
* Object ̃TuNXłΑSă}b`Ă܂߁A
* ړĨRXgN^ȊÔ̂\B
*
* @return args Ɏ邱ƂłRXgN^B
* Ȃ nullB
*
* @exception ClassNotFoundException
* classname ŎNX݂Ȃꍇ
*/
public static Constructor getConstructor( String classname,
Object[] args )
throws ClassNotFoundException {
return Factory.getConstructor( Class.forName( classname ),
args );
}
/**
* type public ȃRXgN^̂Aargs
* Type.parse ꍇ ƂĎ邱Ƃł̂B
*
* @param type ^B
* ̌^̃CX^X邽߂̃RXgN^B
* @param args zB
* null ܂߂ĂǂAnull gpꍇ
* Object ̃TuNXłΑSă}b`Ă܂߁A
* ړĨRXgN^ȊÔ̂\B
*
* @return args Ɏ邱ƂłRXgN^B
* Ȃ nullB
*/
public static Constructor getConstructor( Class type,
Object[] args ){
return Factory.getConstructor( type, args, false );
}
/**
* classnameŎNX RXgN^̂Aargs
* Type.parse ƂĎ邱Ƃł̂B
*
* @param classname NXB
* ̌^̃CX^X邽߂̃RXgN^B
* @param args zB
* null ܂߂ĂǂAnull gpꍇ
* Object ̃TuNXłΑSă}b`Ă܂߁A
* ړĨRXgN^ȊÔ̂\B
* @param all public ̃RXgN^݂̂Ȃ falseB
* public, protected, private, pbP[WvCx[g
* SẴRXgN^Ȃ trueB
*
* @return args Ɏ邱ƂłRXgN^B
* Ȃ nullB
*
* @exception ClassNotFoundException
* classname ŎNX݂Ȃꍇ
*/
public static Constructor getConstructor( String classname,
Object[] args,
boolean all )
throws ClassNotFoundException {
return Factory.getConstructor( Class.forName( classname ),
args,
all );
}
/**
* type ̃RXgN^̂Aargs Type.parse ꍇ
* ƂĎ邱Ƃł̂B
*
* @param type ^B
* ̌^̃CX^X邽߂̃RXgN^B
* @param args zB
* null ܂߂ĂǂAnull gpꍇ
* Object ̃TuNXłΑSă}b`Ă܂߁A
* ړĨRXgN^ȊÔ̂\B
* @param all public ̃RXgN^݂̂Ȃ falseB
* public, protected, private, pbP[WvCx[g
* SẴRXgN^Ȃ trueB
*
* @return args Ɏ邱ƂłRXgN^B
* Ȃ nullB
*/
public static Constructor getConstructor( Class type,
Object[] args,
boolean all ){
Constructor[] constructors = all
? type.getDeclaredConstructors()
: type.getConstructors();
for( int i = 0 ; i < constructors.length ; i++ )
if( Type.matchFullAll( constructors[i].getParameterTypes(), args ) )
return constructors[i];
for( int i = 0 ; i < constructors.length ; i++ )
if( Type.matchRestrictAll( constructors[i].getParameterTypes(), args ) )
return constructors[i];
for( int i = 0 ; i < constructors.length ; i++ )
if( Type.matchAll( constructors[i].getParameterTypes(), args ) )
return constructors[i];
return null;
}
//------------------------------------------------------------------
// shared method
//------------------------------------------------------------------
// get match full constructor
//------------------------------------------------------------------
// public static Constructor getMatchFullConstructor( String classname,
// Object[] args )
// public static Constructor getMatchFullConstructor( Class type,
// Object[] args )
// public static Constructor getMatchFullConstructor( String classname,
// Object[] args, boolean all )
// public static Constructor getMatchFullConstructor( Class type,
// Object[] args, boolean all )
//------------------------------------------------------------------
/**
* classname ŎNX public ȃRXgN^̂A
* args ̂܂܈ƂĎ邱Ƃł̂B
*
* @param classname NXB
* ̌^̃CX^X邽߂
* RXgN^B
* @param args zB
* null ܂߂ĂǂAnull gpꍇ
* Object ̃TuNXłΑSă}b`Ă܂߁A
* ړĨRXgN^ȊÔ̂\B
*
* @return args Ɏ邱ƂłRXgN^B
* Ȃ nullB
*
* @exception ClassNotFoundException
* classname ŎNX݂Ȃꍇ
*/
public static Constructor getMatchFullConstructor( String classname,
Object[] args )
throws ClassNotFoundException {
return Factory.getMatchFullConstructor( Class.forName( classname ),
args );
}
/**
* type public ȃRXgN^̂Aargs
* ̂܂܈ƂĎ邱Ƃł̂B
*
* @param type ^B
* ̌^̃CX^X邽߂̃RXgN^B
* @param args zB
* null ܂߂ĂǂAnull gpꍇ
* Object ̃TuNXłΑSă}b`Ă܂߁A
* ړĨRXgN^ȊÔ̂\B
*
* @return args Ɏ邱ƂłRXgN^B
* Ȃ nullB
*/
public static Constructor getMatchFullConstructor( Class type,
Object[] args ){
return Factory.getMatchFullConstructor( type, args, false );
}
/**
* classname ŎNX RXgN^̂A
* args ̂܂܈ƂĎ邱Ƃł̂B
*
* @param classname NXB
* ̌^̃CX^X邽߂
* RXgN^B
* @param args zB
* null ܂߂ĂǂAnull gpꍇ
* Object ̃TuNXłΑSă}b`Ă܂߁A
* ړĨRXgN^ȊÔ̂\B
*
* @return args Ɏ邱ƂłRXgN^B
* Ȃ nullB
*
* @exception ClassNotFoundException
* classname ŎNX݂Ȃꍇ
*/
public static Constructor getMatchFullConstructor( String classname,
Object[] args,
boolean all )
throws ClassNotFoundException {
return Factory.getMatchFullConstructor( Class.forName( classname ),
args,
all );
}
/**
* type ̃RXgN^̂Aargs
* ̂܂܈ƂĎ邱Ƃł̂B
*
* @param type ^B
* ̌^̃CX^X邽߂̃RXgN^B
* @param args zB
* null ܂߂ĂǂAnull gpꍇ
* Object ̃TuNXłΑSă}b`Ă܂߁A
* ړĨRXgN^ȊÔ̂\B
* @param all public ̃RXgN^݂̂Ȃ falseB
* public, protected, private, pbP[WvCx[g
* SẴRXgN^Ȃ trueB
*
* @return args Ɏ邱ƂłRXgN^B
* Ȃ nullB
*/
public static Constructor getMatchFullConstructor( Class type,
Object[] args,
boolean all ){
Constructor[] constructors = all
? type.getDeclaredConstructors()
: type.getConstructors();
for( int i = 0 ; i < constructors.length ; i++ )
if( Type.matchFullAll( constructors[i].getParameterTypes(), args ) )
return constructors[i];
return null;
}
}
//end of Factory.java
|
