/*
* Copyright (c) 1998-2010 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 Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Nam Nguyen
*/
package com.caucho.quercus.env;
import com.caucho.util.IntMap;
import java.util.*;
/**
* Represents the Quercus static environment.
*/
public class LazyStaticMap extends AbstractMap<StringValue, Var> {
private final IntMap _intMap;
private final Value[] _values;
private HashMap<StringValue, Var> _extMap = new HashMap<StringValue, Var>();
public LazyStaticMap(IntMap intMap, Value[] values) {
_intMap = intMap;
_values = values;
}
/**
* Returns the matching value, or null.
*/
@Override
public Var get(Object key) {
return (Var) get((StringValue) key);
}
/**
* Returns the matching value, or null.
*/
public Var get(StringValue key) {
Var var = _extMap.get(key);
if (var == null) {
int id = _intMap.get(key);
if (id >= 0 && _values[id] != null) {
var = new Var();
// var.setGlobal();
_extMap.put(key, var);
Env env = Env.getCurrent();
Value value = _values[id].copy(env);
var.set(value);
}
}
return var;
}
/**
* Returns the matching value, or null.
*/
@Override
public Var put(StringValue key, Var newVar) {
return _extMap.put(key, newVar);
}
@Override
public Set<Map.Entry<StringValue, Var>> entrySet() {
return _extMap.entrySet();
}
}