/******************************************************************************
* Copyright (c) 2014 Oracle
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Konstantin Komissarchik - initial implementation and ongoing maintenance
******************************************************************************/
package org.eclipse.sapphire.modeling.el.internal;
import org.eclipse.sapphire.PropertyContentEvent;
import org.eclipse.sapphire.PropertyEvent;
import org.eclipse.sapphire.Value;
import org.eclipse.sapphire.modeling.Path;
import org.eclipse.sapphire.services.RelativePathService;
/**
* Returns the absolute path of a value for properties with a RelativePathService.
*
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public final class AbsolutePathFunction extends PropertyFunction<Value<?>>
{
@Override
public String name()
{
return "Absolute";
}
@Override
protected Object evaluate( final Value<?> value )
{
final Object content = value.content();
if( content instanceof Path )
{
final RelativePathService relativePathService = value.service( RelativePathService.class );
if( relativePathService != null )
{
return relativePathService.convertToAbsolute( (Path) content );
}
}
return value.text();
}
@Override
protected boolean relevant( final PropertyEvent event )
{
return ( event instanceof PropertyContentEvent );
}
}