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/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
package com.sun.star.lib.uno.helper;
import com.sun.star.uno.Type;
import com.sun.star.lang.EventObject;
import java.util.HashMap;
import java.util.Map;
import java.util.Iterator;
public class MultiTypeInterfaceContainer
{
private final Map<Object,InterfaceContainer> map= new HashMap<Object,InterfaceContainer>();
/** only returns types which have at least one value in InterfaceContainer
* return value can contain an element null, if someone called
* addInterface (null, interf)
* @return an array of types in this container.
*/
synchronized public Type[] getContainedTypes()
{
int size;
Type[] retVal= null;
if ( (size=map.size()) > 0)
{
Type [] arTypes= new Type[size];
int countTypes= 0;
for (Map.Entry<Object,InterfaceContainer> entry : map.entrySet())
{
InterfaceContainer cont= entry.getValue();
if (cont != null && cont.size() > 0)
{
Object key = entry.getKey();
if (key == null)
arTypes[countTypes++]= new Type();
else if (key instanceof Type)
arTypes[countTypes++]= (Type) key;
else if (key instanceof Class)
arTypes[countTypes++]= new Type((Class) key);
else
arTypes[countTypes++]= new Type(key.getClass());
}
}
if (countTypes != size)
{
retVal= new Type[countTypes];
System.arraycopy(arTypes, 0, retVal, 0, countTypes);
}
else
retVal= arTypes;
}
if (retVal == null)
retVal= new Type[0];
return retVal;
}
/** param key can be null
* @param key the object for which the container should be retrieved.
* @return the container that contains the object key, if any.
*/
synchronized public InterfaceContainer getContainer(Object key)
{
InterfaceContainer retVal= null;
Iterator<Object> it= map.keySet().iterator();
while (it.hasNext())
{
Object obj= it.next();
if (obj == null && key == null)
{
retVal= map.get(null);
break;
}
else if( obj != null && obj.equals(key))
{
retVal= map.get(obj);
break;
}
}
return retVal;
}
synchronized public int addInterface(Object ckey, Object iface)
{
//If the key is a Type then it does not matter if the objects are different
// if they represent the same type. This is because Types overrides hashCode and
// equals. For example:
// Type a= new Type(XInterface.class);
// Type b= new Type(XInterface.class);
// Although a != b , the map interprets both as being the same.
InterfaceContainer cont= map.get(ckey);
if (cont != null)
{
cont.add(iface);
}
else
{
cont= new InterfaceContainer();
cont.add(iface);
map.put(ckey, cont);
}
return cont.size();
}
synchronized public int removeInterface(Object key, Object iface)
{
int retVal= 0;
InterfaceContainer cont= map.get(key);
if (cont != null)
{
cont.remove(iface);
retVal= cont.size();
}
return retVal;
}
public void disposeAndClear(EventObject evt)
{
Iterator<InterfaceContainer> it= null;
synchronized(this)
{
it= map.values().iterator();
}
while (it.hasNext() ) {
it.next().disposeAndClear(evt);
}
}
synchronized public void clear()
{
Iterator<InterfaceContainer> it= map.values().iterator();
while (it.hasNext()) {
it.next().clear();
}
}
}
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