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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.
// --------------------------------------------------------------------------
// Copyright (c) 1998-2004, Drew Davidson and Luke Blanshard
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// Neither the name of the Drew Davidson nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
// DAMAGE.
// --------------------------------------------------------------------------
package com.feilong.lib.ognl;
import java.util.ArrayList;
import java.util.List;
import com.feilong.lib.ognl.enhance.ExpressionCompiler;
import com.feilong.lib.ognl.enhance.UnsupportedCompilationException;
/**
* @author Luke Blanshard ([email protected])
* @author Drew Davidson ([email protected])
*/
public class ASTList extends SimpleNode implements NodeType{
/**
*
*/
private static final long serialVersionUID = 2807877991498381397L;
public ASTList(int id){
super(id);
}
public ASTList(OgnlParser p, int id){
super(p, id);
}
@Override
protected Object getValueBody(OgnlContext context,Object source) throws OgnlException{
List answer = new ArrayList(jjtGetNumChildren());
for (int i = 0; i < jjtGetNumChildren(); ++i){
answer.add(_children[i].getValue(context, source));
}
return answer;
}
@Override
public Class getGetterClass(){
return null;
}
@Override
public Class getSetterClass(){
return null;
}
@Override
public String toString(){
String result = "{ ";
for (int i = 0; i < jjtGetNumChildren(); ++i){
if (i > 0){
result = result + ", ";
}
result = result + _children[i].toString();
}
return result + " }";
}
@Override
public String toGetSourceString(OgnlContext context,Object target){
String result = "";
boolean array = false;
if (_parent != null && ASTCtor.class.isInstance(_parent) && ((ASTCtor) _parent).isArray()){
array = true;
}
context.setCurrentType(List.class);
context.setCurrentAccessor(List.class);
if (!array){
if (jjtGetNumChildren() < 1){
return "java.util.Arrays.asList( new Object[0])";
}
result += "java.util.Arrays.asList( new Object[] ";
}
result += "{ ";
try{
for (int i = 0; i < jjtGetNumChildren(); ++i){
if (i > 0){
result = result + ", ";
}
Class prevType = context.getCurrentType();
Object objValue = _children[i].getValue(context, context.getRoot());
String value = _children[i].toGetSourceString(context, target);
// to undo type setting of constants when used as method parameters
if (ASTConst.class.isInstance(_children[i])){
context.setCurrentType(prevType);
}
value = ExpressionCompiler.getRootExpression(_children[i], target, context) + value;
String cast = "";
if (ExpressionCompiler.shouldCast(_children[i])){
cast = (String) context.remove(ExpressionCompiler.PRE_CAST);
}
if (cast == null){
cast = "";
}
if (!ASTConst.class.isInstance(_children[i])){
value = cast + value;
}
Class ctorClass = (Class) context.get("_ctorClass");
if (array && ctorClass != null && !ctorClass.isPrimitive()){
Class valueClass = value != null ? value.getClass() : null;
if (NodeType.class.isAssignableFrom(_children[i].getClass())){
valueClass = ((NodeType) _children[i]).getGetterClass();
}
if (valueClass != null && ctorClass.isArray()){
value = OgnlRuntime.getCompiler().createLocalReference(
context,
"(" + ExpressionCompiler.getCastString(ctorClass) + ")ognl.OgnlOps.toArray(" + value + ", "
+ ctorClass.getComponentType().getName() + ".class, true)",
ctorClass);
}else if (ctorClass.isPrimitive()){
Class wrapClass = OgnlRuntime.getPrimitiveWrapperClass(ctorClass);
value = OgnlRuntime.getCompiler().createLocalReference(
context,
"((" + wrapClass.getName() + ")ognl.OgnlOps.convertValue(" + value + "," + wrapClass.getName()
+ ".class, true))." + OgnlRuntime.getNumericValueGetter(wrapClass),
ctorClass);
}else if (ctorClass != Object.class){
value = OgnlRuntime.getCompiler().createLocalReference(
context,
"(" + ctorClass.getName() + ")ognl.OgnlOps.convertValue(" + value + "," + ctorClass.getName()
+ ".class)",
ctorClass);
}else if ((NodeType.class.isInstance(_children[i]) && ((NodeType) _children[i]).getGetterClass() != null
&& Number.class.isAssignableFrom(((NodeType) _children[i]).getGetterClass()))
|| valueClass.isPrimitive()){
value = " ($w) (" + value + ")";
}else if (valueClass.isPrimitive()){
value = "($w) (" + value + ")";
}
}else if (ctorClass == null || !ctorClass.isPrimitive()){
value = " ($w) (" + value + ")";
}
if (objValue == null || value.length() <= 0){
value = "null";
}
result += value;
}
}catch (Throwable t){
throw OgnlOps.castToRuntime(t);
}
context.setCurrentType(List.class);
context.setCurrentAccessor(List.class);
result += "}";
if (!array){
result += ")";
}
return result;
}
@Override
public String toSetSourceString(OgnlContext context,Object target){
throw new UnsupportedCompilationException("Can't generate setter for ASTList.");
}
}