/*
* 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 DefaultDataAttributes implements DataAttributes
{
private AttributeMap valueBackend;
private AttributeMap mapperBackend;
public DefaultDataAttributes()
{
this.valueBackend = new AttributeMap();
this.mapperBackend = new AttributeMap();
}
public void setMetaAttribute(final String domain,
final String name,
final ConceptQueryMapper conceptMapper,
final Object value)
{
if (name == null)
{
throw new NullPointerException();
}
if (domain == null)
{
throw new NullPointerException();
}
valueBackend.setAttribute(domain, name, value);
mapperBackend.setAttribute(domain, name, conceptMapper);
}
public String[] getMetaAttributeDomains()
{
return valueBackend.getNameSpaces();
}
public String[] getMetaAttributeNames(final String domainName)
{
if (domainName == null)
{
throw new NullPointerException();
}
return valueBackend.getNames(domainName);
}
public Object getMetaAttribute(final String domain,
final String name,
final Class type,
final DataAttributeContext context)
{
if (domain == null)
{
throw new NullPointerException();
}
if (name == null)
{
throw new NullPointerException();
}
if (context == null)
{
throw new NullPointerException();
}
return getMetaAttribute(domain, name, type, context, null);
}
public Object getMetaAttribute(final String domain,
final String name,
final Class type,
final DataAttributeContext context,
final Object defaultValue)
{
if (domain == null)
{
throw new NullPointerException();
}
if (name == null)
{
throw new NullPointerException();
}
if (context == null)
{
throw new NullPointerException();
}
final Object attribute = valueBackend.getAttribute(domain, name);
if (attribute == null)
{
return defaultValue;
}
final ConceptQueryMapper mapper = getMetaAttributeMapper(domain, name);
return mapper.getValue(attribute, type, context);
}
public ConceptQueryMapper getMetaAttributeMapper(final String domain, final String name)
{
if (domain == null)
{
throw new NullPointerException();
}
if (name == null)
{
throw new NullPointerException();
}
final ConceptQueryMapper attribute = (ConceptQueryMapper) mapperBackend.getAttribute(domain, name);
if (attribute == null)
{
return DefaultConceptQueryMapper.INSTANCE;
}
return attribute;
}
public void merge(final DataAttributes attributes,
final DataAttributeContext context)
{
if (attributes == null)
{
throw new NullPointerException();
}
if (context == 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.getMetaAttribute(domain, name, null, context);
if (value != null)
{
valueBackend.setAttribute(domain, name, value);
mapperBackend.setAttribute(domain, name, attributes.getMetaAttributeMapper(domain, name));
}
}
}
}
public void mergeReferences(final DataAttributeReferences references,
final DataAttributeContext context)
{
if (references == null)
{
throw new NullPointerException();
}
if (context == null)
{
throw new NullPointerException();
}
final String[] domains = references.getMetaAttributeDomains();
for (int i = 0; i < domains.length; i++)
{
final String domain = domains[i];
final String[] names = references.getMetaAttributeNames(domain);
for (int j = 0; j < names.length; j++)
{
final String name = names[j];
final DataAttributeReference ref = references.getReference(domain, name);
final Object value = ref.resolve(this, context);
if (value != null)
{
valueBackend.setAttribute(domain, name, value);
mapperBackend.setAttribute(domain, name, ref.resolveMapper(this));
}
}
}
}
public Object clone() throws CloneNotSupportedException
{
final DefaultDataAttributes o = (DefaultDataAttributes) super.clone();
o.valueBackend = (AttributeMap) valueBackend.clone();
o.mapperBackend = (AttributeMap) mapperBackend.clone();
return o;
}
public boolean isEmpty()
{
return valueBackend.getNameSpaces().length == 0;
}
}