org.xwiki.rendering.internal.syntax.SyntaxConverter Maven / Gradle / Ivy
/*
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership.
*
* 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.xwiki.rendering.internal.syntax;
import java.lang.reflect.Type;
import javax.inject.Inject;
import javax.inject.Singleton;
import org.xwiki.component.annotation.Component;
import org.xwiki.properties.converter.AbstractConverter;
import org.xwiki.properties.converter.ConversionException;
import org.xwiki.rendering.parser.ParseException;
import org.xwiki.rendering.syntax.Syntax;
import org.xwiki.rendering.syntax.SyntaxRegistry;
/**
* Convert a Syntax from a String to a Syntax object and the other way around.
*
* @version $Id: 6dfd49a07fca920f6d2fbd706db8df8ba5e136a9 $
* @since 4.2M3
*/
@Component
@Singleton
public class SyntaxConverter extends AbstractConverter
{
@Inject
private SyntaxRegistry syntaxRegistry;
@Override
protected Syntax convertToType(Type targetType, Object value)
{
try {
return value == null || value.toString().isEmpty() ? null
: this.syntaxRegistry.resolveSyntax(value.toString());
} catch (ParseException e) {
// The specified syntax is not recognized, return an error
throw new ConversionException(String.format("Unknown syntax [%s]", value), e);
}
}
@Override
protected String convertToString(Syntax value)
{
return value == null ? null : value.toIdString();
}
}