/*
* 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 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.filter.templates;
import java.util.MissingResourceException;
import org.pentaho.reporting.engine.classic.core.ReportElement;
import org.pentaho.reporting.engine.classic.core.filter.ResourceFileFilter;
import org.pentaho.reporting.engine.classic.core.filter.StaticDataSource;
import org.pentaho.reporting.engine.classic.core.filter.StringFilter;
import org.pentaho.reporting.engine.classic.core.function.ExpressionRuntime;
/**
* A resource label template.
*
* @author Thomas Morgner
*/
public class ResourceLabelTemplate extends AbstractTemplate
{
/**
* A static datasource.
*/
private StaticDataSource staticDataSource;
/**
* A string filter.
*/
private StringFilter stringFilter;
/**
* A resource file filter.
*/
private ResourceFileFilter resourceFilter;
/**
* Creates a new template.
*/
public ResourceLabelTemplate()
{
staticDataSource = new StaticDataSource();
resourceFilter = new ResourceFileFilter();
resourceFilter.setDataSource(staticDataSource);
stringFilter = new StringFilter();
stringFilter.setDataSource(resourceFilter);
}
/**
* Returns the resource class name.
*
* @return The resource class name.
*/
public String getResourceIdentifier()
{
return resourceFilter.getResourceIdentifier();
}
/**
* Sets the resource class name.
*
* @param resourceClassName the class name.
* @throws MissingResourceException if the resource is missing.
* @throws NullPointerException if the resource class name is null.
*/
public void setResourceIdentifier(final String resourceClassName)
throws MissingResourceException
{
resourceFilter.setResourceIdentifier(resourceClassName);
}
/**
* Sets the content.
*
* @param content the content.
*/
public void setContent(final String content)
{
staticDataSource.setValue(content);
}
/**
* Returns the content.
*
* @return The content.
*/
public String getContent()
{
return (String) (staticDataSource.getValue(null, null));
}
/**
* Returns the string that represents a <code>null</code> value.
*
* @return The string that represents a <code>null</code> value.
*/
public String getNullValue()
{
return stringFilter.getNullValue();
}
/**
* Sets the string that represents a <code>null</code> value.
*
* @param nullValue The string that represents a <code>null</code> value.
*/
public void setNullValue(final String nullValue)
{
stringFilter.setNullValue(nullValue);
}
/**
* Returns the current value for the data source.
*
* @param runtime the expression runtime that is used to evaluate formulas and expressions when computing the value of
* this filter.
* @param element
* @return the value.
*/
public Object getValue(final ExpressionRuntime runtime, final ReportElement element)
{
return stringFilter.getValue(runtime, element);
}
/**
* Clones the template.
*
* @return the clone.
* @throws CloneNotSupportedException this should never happen.
*/
public ResourceLabelTemplate clone()
throws CloneNotSupportedException
{
final ResourceLabelTemplate template = (ResourceLabelTemplate) super.clone();
template.stringFilter = stringFilter.clone();
template.resourceFilter = (ResourceFileFilter) template.stringFilter.getDataSource();
template.staticDataSource = (StaticDataSource) template.resourceFilter.getDataSource();
return template;
}
}