/*
* 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.plugins.values.mappers;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Hashtable;
import java.util.Enumeration;
import javax.management.ObjectName;
import javax.management.MalformedObjectNameException;
import org.jboss.metatype.api.types.MetaType;
import org.jboss.metatype.api.types.PropertiesMetaType;
import org.jboss.metatype.api.values.MetaValue;
import org.jboss.metatype.api.values.PropertiesMetaValue;
import org.jboss.metatype.spi.values.MetaMapper;
/**
* An ObjectName MetaMapper that maps to a PropertiesMetaType/PropertiesMetaValue.
*
* @author Scott.Stark@jboss.org
* @author Ales.Justin@jboss.org
* @version $Revision: 87758 $
*/
public class PropertiesObjectNameMetaMapper extends MetaMapper<ObjectName>
{
PropertiesMetaType type;
public PropertiesObjectNameMetaMapper()
{
this((String[])null);
}
public PropertiesObjectNameMetaMapper(String... args)
{
Map<String, String> propertyNameDescriptions = Collections.emptyMap();
if(args != null)
{
if(((args.length %2) == 0) == false)
throw new IllegalStateException("args counts must be 2*n for n key,key-description pairs");
propertyNameDescriptions = new HashMap<String,String>();
propertyNameDescriptions.put("domain", "the object name domain");
for(int n = 0; n < args.length; n += 2)
{
String key = args[n];
String description = args[n+1];
propertyNameDescriptions.put(key, description);
}
}
type = new PropertiesMetaType("java.util.Properties", propertyNameDescriptions);
}
@Override
public MetaType getMetaType()
{
return type;
}
@Override
public Type mapToType()
{
return ObjectName.class;
}
@Override
public MetaValue createMetaValue(MetaType metaType, ObjectName object)
{
String domain = object.getDomain();
Map<String, String> props = object.getKeyPropertyList();
PropertiesMetaValue map = PropertiesMetaValue.wrap(props);
map.put("domain", domain);
return map;
}
@Override
public ObjectName unwrapMetaValue(MetaValue metaValue)
{
PropertiesMetaValue map = (PropertiesMetaValue) metaValue;
String domain = (String) map.remove("domain");
try
{
return createObjectName(domain, map);
}
catch(Exception e)
{
throw new IllegalArgumentException("Failed to build ObjectName from MetaValue: "+metaValue, e);
}
}
/**
* Create object name from PropertiesMetaValue.
* Make it JDK 1.6 compatible.
*
* @param domain the domain name
* @param props the props
* @return new ObjectName instance
* @throws javax.management.MalformedObjectNameException for any error
*/
public static ObjectName createObjectName(String domain, PropertiesMetaValue props) throws MalformedObjectNameException
{
if (props == null)
return new ObjectName(domain);
Hashtable<String, String> table = new Hashtable<String, String>();
Enumeration<?> enumeration = props.propertyNames();
while (enumeration.hasMoreElements())
{
Object key = enumeration.nextElement();
if (key instanceof String)
{
String stringKey = (String)key;
String property = props.getProperty(stringKey);
table.put(stringKey, property);
}
}
return new ObjectName(domain, table);
}
}