//--------------------------------------------------------------------------
// 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 org.apache.ibatis.ognl;
import java.lang.reflect.Array;
import java.util.List;
/**
* @author Luke Blanshard ([email protected])
* @author Drew Davidson ([email protected])
*/
class ASTCtor extends SimpleNode {
private String className;
private boolean isArray;
public ASTCtor(int id) {
super(id);
}
public ASTCtor(OgnlParser p, int id) {
super(p, id);
}
/**
* Called from parser action.
*/
void setClassName(String className) {
this.className = className;
}
void setArray(boolean value) {
isArray = value;
}
protected Object getValueBody(OgnlContext context, Object source) throws OgnlException {
Object result,
root = context.getRoot();
int count = jjtGetNumChildren();
Object[] args = OgnlRuntime.getObjectArrayPool().create(count);
try {
for (int i = 0; i < count; ++i) {
args[i] = children[i].getValue(context, root);
}
if (isArray) {
if (args.length == 1) {
try {
Class componentClass = OgnlRuntime.classForName(context, className);
List sourceList = null;
int size;
if (args[0] instanceof List) {
sourceList = (List) args[0];
size = sourceList.size();
} else {
size = (int) OgnlOps.longValue(args[0]);
}
result = Array.newInstance(componentClass, size);
if (sourceList != null) {
TypeConverter converter = context.getTypeConverter();
for (int i = 0, icount = sourceList.size(); i < icount; i++) {
Object o = sourceList.get(i);
if ((o == null) || componentClass.isInstance(o)) {
Array.set(result, i, o);
} else {
Array.set(result, i, converter.convertValue(context, null, null, null, o, componentClass));
}
}
}
} catch (ClassNotFoundException ex) {
throw new OgnlException("array component class '" + className + "' not found", ex);
}
} else {
throw new OgnlException("only expect array size or fixed initializer list");
}
} else {
result = OgnlRuntime.callConstructor(context, className, args);
}
return result;
} finally {
OgnlRuntime.getObjectArrayPool().recycle(args);
}
}
public String toString() {
String result = "new " + className;
if (isArray) {
if (children[0] instanceof ASTConst) {
result = result + "[" + children[0] + "]";
} else {
result = result + "[] " + children[0];
}
} else {
result = result + "(";
if ((children != null) && (children.length > 0)) {
for (int i = 0; i < children.length; i++) {
if (i > 0) {
result = result + ", ";
}
result = result + children[i];
}
}
result = result + ")";
}
return result;
}
}
|