/*
* JBoss, Home of Professional Open Source
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.metatype.api.values;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.jboss.metatype.api.types.MapCompositeMetaType;
import org.jboss.metatype.api.types.MetaType;
/**
* A {@link CompositeValue} representing a <code>Map<String,MetaValue></code>, where the set of allowed keys is
* specified by the associated {@link MapCompositeMetaType}, and where all values must be of the same MetaType.
*
* To represent a <code>Map<String,MetaValue></code> where values may have different MetaTypes, use
* {@link CompositeValueSupport} instead.
*
* @author Scott.Stark@jboss.org
* @version $Revision: 87521 $
*/
public class MapCompositeValueSupport extends AbstractMetaValue implements CompositeValue
{
private static final long serialVersionUID = 1;
private Map<String, MetaValue> map;
private MapCompositeMetaType mapType;
public MapCompositeValueSupport(MetaType valueType)
{
this(null, valueType);
}
public MapCompositeValueSupport(Map<String, MetaValue> map, MetaType valueType)
{
this.map = createMap();
this.mapType = new MapCompositeMetaType(valueType);
if(map != null)
{
for(Map.Entry<String, MetaValue> entry : map.entrySet())
this.put(entry.getKey(), entry.getValue());
}
}
/**
* Create map instance.
* Default is hash map.
*
* @return the map
*/
protected Map<String, MetaValue> createMap()
{
return new HashMap<String, MetaValue>();
}
public boolean containsKey(String key)
{
return map.containsKey(key);
}
public boolean containsValue(MetaValue value)
{
return map.containsValue(value);
}
public MetaValue get(String key)
{
return map.get(key);
}
public void put(String key, MetaValue value)
{
if(mapType.containsItem(key) == false)
mapType.addItem(key);
map.put(key, value);
}
public MetaValue remove(String key)
{
return map.remove(key);
}
public MetaValue[] getAll(String[] keys)
{
List<MetaValue> values = new ArrayList<MetaValue>();
if(keys != null)
{
for(String key : keys)
{
MetaValue value = map.get(key);
values.add(value);
}
}
MetaValue[] mvs = new MetaValue[values.size()];
return values.toArray(mvs);
}
public MapCompositeMetaType getMetaType()
{
return mapType;
}
public Collection<MetaValue> values()
{
return map.values();
}
@Override
public boolean equals(Object obj)
{
if (obj == this)
return true;
if (obj == null || obj instanceof MapCompositeValueSupport == false)
return false;
MapCompositeValueSupport other = (MapCompositeValueSupport) obj;
if (mapType.equals(other.getMetaType()) == false)
return false;
Map<String, MetaValue> otherMap = other.map;
if (map == null && otherMap == null)
return true;
if (map == null && otherMap != null)
return false;
return map.equals(otherMap);
}
@Override
public int hashCode()
{
return map.hashCode();
}
@Override
public String toString()
{
StringBuilder buffer = new StringBuilder(getClass().getSimpleName()).append(":");
buffer.append(" mapType=[").append(mapType).append("]");
buffer.append(" map=[").append(map).append("]");
return buffer.toString();
}
}