/******************************************************************************
* 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.internal;
import org.eclipse.sapphire.Event;
import org.eclipse.sapphire.Listener;
import org.eclipse.sapphire.LocalizableText;
import org.eclipse.sapphire.MasterVersionCompatibilityService;
import org.eclipse.sapphire.Property;
import org.eclipse.sapphire.Text;
import org.eclipse.sapphire.Version;
import org.eclipse.sapphire.modeling.Status;
import org.eclipse.sapphire.services.ValidationService;
/**
* An implementation of ValidationService that produces a validation error when a property
* is not compatible with the version compatibility target yet contains data.
*
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public final class VersionCompatibilityValidationService extends ValidationService
{
@Text( "Not compatible with version {0} of {1}" )
private static LocalizableText notCompatibleWithVersionMessage;
@Text( "Version constraint exists, but no version constraint target was found" )
private static LocalizableText versionConstraintTargetNotFoundMessage;
static
{
LocalizableText.init( VersionCompatibilityValidationService.class );
}
private MasterVersionCompatibilityService versionCompatibilityService;
private Listener versionCompatibilityServiceListener;
@Override
protected void initValidationService()
{
this.versionCompatibilityService = context( Property.class ).service( MasterVersionCompatibilityService.class );
this.versionCompatibilityServiceListener = new Listener()
{
@Override
public void handle( final Event event )
{
refresh();
}
};
this.versionCompatibilityService.attach( this.versionCompatibilityServiceListener );
}
@Override
protected Status compute()
{
if( ! this.versionCompatibilityService.compatible() && ! context( Property.class ).empty() )
{
final String message;
final Version version = this.versionCompatibilityService.version();
final String versioned = this.versionCompatibilityService.versioned();
if( version == null )
{
message = versionConstraintTargetNotFoundMessage.text();
}
else
{
message = notCompatibleWithVersionMessage.format( version.toString(), versioned );
}
return Status.createErrorStatus( message );
}
return Status.createOkStatus();
}
@Override
public void dispose()
{
super.dispose();
if( this.versionCompatibilityService != null )
{
this.versionCompatibilityService.detach( this.versionCompatibilityServiceListener );
}
}
}