/*
* Copyright (c) 1998-2011 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 SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.es;
import com.caucho.server.util.CauchoSystem;
import java.util.Hashtable;
/**
* JavaScript object representing a Java package or class.
*/
class ESPackage extends ESBase {
ESString name;
Class cl;
Hashtable cache = new Hashtable();
/**
* Creates a new package object with the given first segment.
*
* @param name the first segment of a Java package/class.
*/
private ESPackage(String name)
{
this.className = "Package";
this.prototype = esBase;
this.name = ESString.create(name);
}
/**
* Creates an empty package object.
*/
static ESPackage create()
{
return new ESPackage("");
}
public ESBase getProperty(ESString name) throws Throwable
{
ESBase value = null;
if (name == null)
return this;
value = (ESBase) cache.get(name);
if (value != null)
return value;
String subname;
if (this.name.equals(ESString.NULL))
subname = name.toString();
else
subname = this.name.toString() + "." + name.toString();
try {
Global global = Global.getGlobalProto();
ClassLoader loader = global.getParentLoader();
Class cl = CauchoSystem.loadClass(subname, false, loader);
value = global.classWrap(cl);
} catch (ClassNotFoundException e) {
value = new ESPackage(subname);
}
cache.put(name, value);
return value;
}
public ESString toStr() { return new ESString("[Package " + name + "]"); }
public double toNum()
{
return 0.0/0.0;
}
/**
* Converts the package to a java object. For classes, returns the class.
* For a package, returns null.
*/
public Object toJavaObject()
{
return null;
}
ESBase create(String string)
{
try {
return getProperty(ESString.create(string));
} catch (Throwable e) {
return ESBase.esNull;
}
}
}