/*
* 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.types;
import java.util.Locale;
import java.util.TimeZone;
import org.pentaho.reporting.engine.classic.core.AttributeNames;
import org.pentaho.reporting.engine.classic.core.ReportElement;
import org.pentaho.reporting.engine.classic.core.ResourceBundleFactory;
import org.pentaho.reporting.engine.classic.core.filter.MessageFormatSupport;
import org.pentaho.reporting.engine.classic.core.function.ExpressionRuntime;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
public class MessageType extends AbstractElementType
{
public static final MessageType INSTANCE = new MessageType();
public static class MessageTypeContext
{
public MessageTypeContext()
{
messageFormatFilter = new MessageFormatSupport();
}
public MessageFormatSupport messageFormatFilter;
}
public MessageType()
{
super("message");
}
/**
* 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 the element from which to read attribute.
* @return the value.
*/
public Object getValue(final ExpressionRuntime runtime, final ReportElement element)
{
if (runtime == null)
{
throw new NullPointerException("Runtime must never be null.");
}
if (element == null)
{
throw new NullPointerException("Element must never be null.");
}
final Object nullValue = element.getAttribute(AttributeNames.Core.NAMESPACE, AttributeNames.Core.NULL_VALUE);
final Object message = ElementTypeUtils.queryStaticValue(element);
if (message == null)
{
return nullValue;
}
final MessageTypeContext context = element.getElementContext(MessageTypeContext.class);
final MessageFormatSupport messageFormatFilter = context.messageFormatFilter;
messageFormatFilter.setFormatString(String.valueOf(message));
final Object messageNullValue = element.getAttribute
(AttributeNames.Core.NAMESPACE, AttributeNames.Core.MESSAGE_NULL_VALUE);
if (messageNullValue != null)
{
messageFormatFilter.setNullString(String.valueOf(messageNullValue));
}
else if (nullValue != null)
{
messageFormatFilter.setNullString(String.valueOf(nullValue));
}
else
{
messageFormatFilter.setNullString(null);
}
final ResourceBundleFactory resourceBundleFactory = runtime.getResourceBundleFactory();
final Locale newLocale = resourceBundleFactory.getLocale();
if (ObjectUtilities.equal(newLocale, messageFormatFilter.getLocale()) == false)
{
messageFormatFilter.setLocale(newLocale);
}
final TimeZone newTimeZone = resourceBundleFactory.getTimeZone();
if (ObjectUtilities.equal(newTimeZone, messageFormatFilter.getTimeZone()) == false)
{
messageFormatFilter.setTimeZone(newTimeZone);
}
final Object value = messageFormatFilter.performFormat(runtime.getDataRow());
if (value == null)
{
return nullValue;
}
return String.valueOf(value);
}
public Object getDesignValue(final ExpressionRuntime runtime, final ReportElement element)
{
final Object message = ElementTypeUtils.queryStaticValue(element);
if (message == null || String.valueOf(message).length() == 0)
{
return element.getElementType().getMetaData().getName();
}
return message;
}
public void configureDesignTimeDefaults(final ReportElement element, final Locale locale)
{
element.setAttribute(AttributeNames.Core.NAMESPACE, AttributeNames.Core.VALUE, "Message");
}
}