/*
* Copyright (c) 2007-2014 Concurrent, Inc. All Rights Reserved.
*
* Project and contact information: http://www.cascading.org/
*
* This file is part of the Cascading project.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cascading.lingual.catalog.target;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import cascading.lingual.catalog.CatalogOptions;
import cascading.lingual.catalog.Format;
import cascading.lingual.catalog.Protocol;
import cascading.lingual.catalog.SchemaCatalog;
import cascading.lingual.catalog.SchemaCatalogManager;
import cascading.lingual.catalog.SchemaDef;
import cascading.lingual.catalog.builder.SchemaBuilder;
import cascading.lingual.common.Printer;
import cascading.lingual.platform.PlatformBroker;
import static java.util.Arrays.asList;
/**
*
*/
public class SchemaTarget extends CRUDTarget
{
public SchemaTarget( Printer printer, CatalogOptions options )
{
super( printer, options );
}
@Override
public boolean updateIsNoop()
{
return true;
}
@Override
protected boolean performRename( PlatformBroker platformBroker )
{
SchemaCatalog catalog = platformBroker.getSchemeCatalog();
String schemaName = getOptions().getSchemaName();
String renameName = getOptions().getRenameName();
return catalog.renameSchemaDef( schemaName, renameName );
}
@Override
protected boolean performRemove( PlatformBroker platformBroker )
{
SchemaCatalog catalog = platformBroker.getSchemeCatalog();
String schemaName = getOptions().getSchemaName();
return catalog.removeSchemaDef( schemaName );
}
@Override
protected Object getSource( PlatformBroker platformBroker )
{
SchemaCatalog catalog = platformBroker.getSchemeCatalog();
return catalog.getSchemaDef( getOptions().getSchemaName() );
}
@Override
protected String getRequestedSourceName()
{
return getOptions().getSchemaName();
}
@Override
protected void validateAdd( PlatformBroker platformBroker )
{
}
@Override
protected List<String> performAdd( PlatformBroker platformBroker )
{
String addURI = getOptions().getAddOrUpdateURI();
SchemaCatalog catalog = platformBroker.getSchemeCatalog();
String schemaName = getOptions().getSchemaName();
String protocol = getOptions().getProtocolName();
String format = getOptions().getFormatName();
if( addURI == null )
{
boolean success = catalog.addSchemaDef( schemaName, Protocol.getProtocol( protocol ), Format.getFormat( format ), null );
if( success )
return asList( schemaName );
return null;
}
SchemaCatalogManager catalogManager = platformBroker.getCatalogManager();
return asList( catalogManager.createSchemaDefAndTableDefsFor( schemaName, protocol, format, addURI, false ) );
}
@Override
protected Collection<String> performGetNames( PlatformBroker platformBroker )
{
return platformBroker.getSchemeCatalog().getSchemaNames();
}
@Override
protected Map performShow( PlatformBroker platformBroker )
{
SchemaCatalog catalog = platformBroker.getSchemeCatalog();
String schemaName = getOptions().getSchemaName();
SchemaDef schemaDef = getSchemaDefChecked( catalog, getOptions().getSchemaName(), true );
return new SchemaBuilder().format( schemaDef );
}
}