/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.wizard;
import org.pentaho.reporting.libraries.xmlns.common.AttributeMap;
/**
* Todo: Document Me
*
* @author Thomas Morgner
*/
public class DefaultDataAttributeReferences implements DataAttributeReferences
{
private AttributeMap backend;
public DefaultDataAttributeReferences()
{
this.backend = new AttributeMap();
}
public void setReference(final String domain, final String name, final DataAttributeReference value)
{
if (domain == null)
{
throw new NullPointerException();
}
if (name == null)
{
throw new NullPointerException();
}
backend.setAttribute(domain, name, value);
}
public String[] getMetaAttributeDomains()
{
return backend.getNameSpaces();
}
public String[] getMetaAttributeNames(final String domainName)
{
if (domainName == null)
{
throw new NullPointerException();
}
return backend.getNames(domainName);
}
public DataAttributeReference getReference(final String domain, final String name)
{
if (domain == null)
{
throw new NullPointerException();
}
if (name == null)
{
throw new NullPointerException();
}
return (DataAttributeReference) backend.getAttribute(domain, name);
}
public void merge(final DataAttributeReferences attributes)
{
if (attributes == null)
{
throw new NullPointerException();
}
final String[] domains = attributes.getMetaAttributeDomains();
for (int i = 0; i < domains.length; i++)
{
final String domain = domains[i];
final String[] names = attributes.getMetaAttributeNames(domain);
for (int j = 0; j < names.length; j++)
{
final String name = names[j];
final Object value = attributes.getReference(domain, name);
if (value != null)
{
backend.setAttribute(domain, name, value);
}
}
}
}
}