/*
* Copyright (c) 1998-2008 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 Scott Ferguson
*/
package com.caucho.quercus.env;
import com.caucho.quercus.program.JavaClassDef;
import java.util.*;
/**
* Represents a marshalled Collection argument.
*/
public class JavaCollectionAdapter<V> extends JavaAdapter<Collection<V>>
{
/**
*
*/
private static final long serialVersionUID = 1L;
public JavaCollectionAdapter(Env env, Collection<V> coll, JavaClassDef def)
{
super(env, coll, def);
}
/**
* Clears the array
*/
@Override
public void clear()
{
_object.clear();
}
//
// Conversions
//
/**
* Copy for assignment.
*/
@Override
public Value copy()
{
return new JavaCollectionAdapter<V>(getEnv(), _object, getClassDef());
}
/**
* Copy for serialization
*/
@Override
public Value copy(Env env, IdentityHashMap<Value,Value> map)
{
return new JavaCollectionAdapter<V>(env, _object, getClassDef());
}
/**
* Returns the size.
*/
@Override
public int getSize()
{
return _object.size();
}
/**
* Creatse a tail index.
*/
@Override
public Value createTailKey()
{
return LongValue.create(getSize());
}
@Override
@SuppressWarnings("unchecked")
public Value putImpl(Value key, Value value)
{
if (key.toInt() != getSize())
throw new UnsupportedOperationException("random assignment into Collection");
_object.add((V)value.toJavaObject());
return value;
}
/**
* Gets a new value.
*/
@Override
public Value get(Value key)
{
int pos = key.toInt();
if (pos < 0)
return UnsetValue.UNSET;
for (Object obj : _object) {
if (pos-- > 0)
continue;
return wrapJava(obj);
}
return UnsetValue.UNSET;
}
/**
* Removes a value.
*/
@Override
public Value remove(Value key)
{
int pos = key.toInt();
if (pos < 0)
return UnsetValue.UNSET;
for (Object obj : _object) {
if (pos-- > 0)
continue;
Value val = wrapJava(obj);
_object.remove(obj);
return val;
}
return UnsetValue.UNSET;
}
/**
* Returns a set of all the of the entries.
*/
@Override
public Set<Map.Entry<Value,Value>> entrySet()
{
return new CollectionValueSet();
}
/**
* Returns a collection of the values.
*/
@Override
@SuppressWarnings("unchecked")
public Set<Map.Entry> objectEntrySet()
{
return (Set<Map.Entry>)new CollectionSet();
}
/**
* Returns a collection of the values.
*/
@Override
public Collection<Value> values()
{
return new ValueCollection();
}
@Override
public Iterator<Map.Entry<Value,Value>> getIterator(Env env)
{
return new CollectionValueIterator();
}
@Override
public Iterator<Value> getKeyIterator(Env env)
{
return new KeyIterator();
}
@Override
public Iterator<Value> getValueIterator(Env env)
{
return new ValueIterator();
}
public class CollectionSet
extends AbstractSet<Map.Entry<Integer,V>>
{
CollectionSet()
{
}
@Override
public int size()
{
return getSize();
}
@Override
public Iterator<Map.Entry<Integer,V>> iterator()
{
return new CollectionIterator();
}
}
public class CollectionIterator
implements Iterator<Map.Entry<Integer,V>>
{
private int _index;
private Iterator<V> _iterator;
public CollectionIterator()
{
_index = 0;
_iterator = _object.iterator();
}
public boolean hasNext()
{
return _iterator.hasNext();
}
public Map.Entry<Integer,V> next()
{
return new CollectionEntry<V>(_index++, _iterator.next());
}
public void remove()
{
throw new UnsupportedOperationException();
}
}
public static class CollectionEntry<V>
implements Map.Entry<Integer,V>
{
private final int _key;
private V _value;
public CollectionEntry(int key, V value)
{
_key = key;
_value = value;
}
public Integer getKey()
{
return _key;
}
public V getValue()
{
return _value;
}
public V setValue(V value)
{
V oldValue = _value;
_value = value;
return oldValue;
}
}
public class CollectionValueSet
extends AbstractSet<Map.Entry<Value,Value>>
{
CollectionValueSet()
{
}
@Override
public int size()
{
return getSize();
}
@Override
public Iterator<Map.Entry<Value,Value>> iterator()
{
return new CollectionValueIterator();
}
}
public class CollectionValueIterator
implements Iterator<Map.Entry<Value,Value>>
{
private int _index;
private Iterator _iterator;
public CollectionValueIterator()
{
_index = 0;
_iterator = _object.iterator();
}
public boolean hasNext()
{
return _iterator.hasNext();
}
public Map.Entry<Value,Value> next()
{
Value val = wrapJava(_iterator.next());
return new ArrayValue.Entry(LongValue.create(_index++), val);
}
public void remove()
{
throw new UnsupportedOperationException();
}
}
public class ValueCollection
extends AbstractCollection<Value>
{
ValueCollection()
{
}
@Override
public int size()
{
return getSize();
}
@Override
public Iterator<Value> iterator()
{
return new ValueIterator();
}
}
public class KeyIterator
implements Iterator<Value>
{
private int _index;
private Iterator _iterator;
public KeyIterator()
{
_index = 0;
_iterator = _object.iterator();
}
public boolean hasNext()
{
return _iterator.hasNext();
}
public Value next()
{
_iterator.next();
return LongValue.create(_index++);
}
public void remove()
{
throw new UnsupportedOperationException();
}
}
public class ValueIterator
implements Iterator<Value>
{
private Iterator _iterator;
public ValueIterator()
{
_iterator = _object.iterator();
}
public boolean hasNext()
{
return _iterator.hasNext();
}
public Value next()
{
return wrapJava(_iterator.next());
}
public void remove()
{
throw new UnsupportedOperationException();
}
}
}