/*
* 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 Scott Ferguson
*/
package com.caucho.quercus.env;
import com.caucho.quercus.program.JavaClassDef;
import java.util.*;
/**
* Represents a marshalled Collection argument.
*/
public class JavaCollectionAdapter extends JavaAdapter {
private Collection<Object> _collection;
public JavaCollectionAdapter(Collection<Object> coll, JavaClassDef def) {
super(coll, def);
_collection = coll;
}
/**
* Clears the array
*/
@Override
public void clear() {
_collection.clear();
}
//
// Conversions
//
/**
* Copy for assignment.
*/
@Override
public Value copy() {
return new JavaCollectionAdapter(_collection, getClassDef());
}
/**
* Copy for serialization
*/
@Override
public Value copy(Env env, IdentityHashMap<Value, Value> map) {
return new JavaCollectionAdapter(_collection, getClassDef());
}
/**
* Returns the size.
*/
@Override
public int getSize() {
return _collection.size();
}
/**
* Creatse a tail index.
*/
@Override
public Value createTailKey() {
return LongValue.create(getSize());
}
@Override
public Value putImpl(Value key, Value value) {
if (key.toInt() != getSize()) {
throw new UnsupportedOperationException(
"random assignment into Collection");
}
_collection.add(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 : _collection) {
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 : _collection) {
if (pos-- > 0) {
continue;
}
Value val = wrapJava(obj);
_collection.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
public Set<Map.Entry<Object, Object>> objectEntrySet() {
return 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<Object, Object>> {
CollectionSet() {
}
@Override
public int size() {
return getSize();
}
@Override
public Iterator<Map.Entry<Object, Object>> iterator() {
return new CollectionIterator();
}
}
public class CollectionIterator
implements Iterator<Map.Entry<Object, Object>> {
private int _index;
private Iterator _iterator;
public CollectionIterator() {
_index = 0;
_iterator = _collection.iterator();
}
@Override
public boolean hasNext() {
return _iterator.hasNext();
}
@Override
public Map.Entry<Object, Object> next() {
return new CollectionEntry(_index++, _iterator.next());
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
}
public static class CollectionEntry
implements Map.Entry<Object, Object> {
private final int _key;
private Object _value;
public CollectionEntry(int key, Object value) {
_key = key;
_value = value;
}
@Override
public Object getKey() {
return _key;
}
@Override
public Object getValue() {
return _value;
}
@Override
public Object setValue(Object value) {
Object 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 = _collection.iterator();
}
@Override
public boolean hasNext() {
return _iterator.hasNext();
}
@Override
public Map.Entry<Value, Value> next() {
Value val = wrapJava(_iterator.next());
return new ArrayValue.Entry(LongValue.create(_index++), val);
}
@Override
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 = _collection.iterator();
}
@Override
public boolean hasNext() {
return _iterator.hasNext();
}
@Override
public Value next() {
_iterator.next();
return LongValue.create(_index++);
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
}
public class ValueIterator
implements Iterator<Value> {
private Iterator _iterator;
public ValueIterator() {
_iterator = _collection.iterator();
}
@Override
public boolean hasNext() {
return _iterator.hasNext();
}
@Override
public Value next() {
return wrapJava(_iterator.next());
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
}
}