//--------------------------------------------------------------------------
// 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 ariba.util.expr;
import java.lang.reflect.*;
import java.util.*;
/**
* @author Luke Blanshard (blanshlu@netscape.net)
* @author Drew Davidson (drew@ognl.org)
*/
class ASTCtor extends SimpleNode
{
private String className;
private boolean isArray;
public ASTCtor(int id) {
super(id);
}
public ASTCtor(ExprParser 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( ExprContext context, Object source ) throws ExprException
{
Object result,
root = context.getRoot();
int count = jjtGetNumChildren();
Object[] args = ExprRuntime.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 = ExprRuntime.classForName(context, className);
List sourceList = null;
int size;
if (args[0] instanceof List) {
sourceList = (List)args[0];
size = sourceList.size();
} else {
size = (int)ExprOps.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 ExprException("array component class '" + className + "' not found", ex);
}
} else {
throw new ExprException("only expect array size or fixed initializer list");
}
} else {
result = ExprRuntime.callConstructor( context, className, args );
}
return result;
} finally {
ExprRuntime.getObjectArrayPool().recycle(args);
}
}
public String getClassName ()
{
return className;
}
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;
}
public void accept (ASTNodeVisitor visitor)
{
acceptChildren(visitor);
visitor.visit(this);
}
}