/******************************************************************************
* 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
******************************************************************************/
package org.eclipse.sapphire.sdk.xml.schema.normalizer.internal;
import static org.eclipse.sapphire.modeling.util.MiscUtil.createStringDigest;
import java.io.File;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.sapphire.modeling.FileResourceStore;
import org.eclipse.sapphire.modeling.Path;
import org.eclipse.sapphire.modeling.ResourceStoreException;
import org.eclipse.sapphire.modeling.xml.RootXmlResource;
import org.eclipse.sapphire.modeling.xml.XmlResource;
import org.eclipse.sapphire.modeling.xml.XmlResourceStore;
import org.eclipse.sapphire.sdk.xml.schema.normalizer.CreateNormalizedXmlSchemaOp;
/**
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public final class PersistedStateManager
{
public static final PersistedState load( final Path sourceSchemaFile )
{
if( sourceSchemaFile != null )
{
final String digest = createStringDigest( sourceSchemaFile.toPortableString() );
File file = ResourcesPlugin.getWorkspace().getRoot().getLocation().toFile();
file = new File( file, ".metadata/.plugins/org.eclipse.sapphire.sdk" );
file = new File( file, CreateNormalizedXmlSchemaOp.class.getSimpleName() );
file = new File( file, digest );
try
{
final FileResourceStore fileResourceStore = new FileResourceStore( file );
final XmlResourceStore xmlResourceStore = new XmlResourceStore( fileResourceStore );
final XmlResource xmlResource = new RootXmlResource( xmlResourceStore );
return PersistedState.TYPE.instantiate( xmlResource );
}
catch( ResourceStoreException e )
{
// Fall through and return no persisted state.
}
}
return null;
}
}