/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.jena.sdb.store;
import java.util.List;
import org.apache.jena.sdb.SDBException ;
import org.apache.jena.sdb.shared.SymbolRegistry ;
import org.apache.jena.sparql.util.Named ;
import org.apache.jena.sparql.util.Symbol ;
import org.slf4j.LoggerFactory;
public class LayoutType extends Symbol implements Named
{
public static final LayoutType LayoutTripleNodesHash = new LayoutType("layout2/hash") ;
public static final LayoutType LayoutTripleNodesIndex = new LayoutType("layout2/index") ;
public static final LayoutType LayoutSimple = new LayoutType("layout1") ;
static SymbolRegistry<LayoutType> registry = new SymbolRegistry<LayoutType>() ;
static { init() ; }
public static LayoutType fetch(String layoutTypeName)
{
if ( layoutTypeName == null )
throw new IllegalArgumentException("LayoutType.convert: null not allowed") ;
LayoutType t = registry.lookup(layoutTypeName) ;
if ( t != null )
return t ;
LoggerFactory.getLogger(LayoutType.class).warn("Can't turn '"+layoutTypeName+"' into a layout type") ;
throw new SDBException("Can't turn '"+layoutTypeName+"' into a layout type") ;
}
static void init()
{
register(LayoutTripleNodesHash) ;
registerName("layout2", LayoutTripleNodesHash) ;
register(LayoutTripleNodesIndex) ;
register(LayoutSimple) ;
}
static public List<String> allNames() { return registry.allNames() ; }
static public List<LayoutType> allTypes() { return registry.allSymbols() ; }
static public void register(String name)
{
if ( name == null )
throw new IllegalArgumentException("LayoutType.register(String): null not allowed") ;
register(new LayoutType(name)) ;
}
static public void register(LayoutType layoutType)
{
if ( layoutType == null )
throw new IllegalArgumentException("LayoutType.register(LayoutType): null not allowed") ;
registry.register(layoutType) ;
}
static public void registerName(String layoutName, LayoutType layoutType)
{
if ( layoutType == null )
throw new IllegalArgumentException("LayoutType.registerName: null not allowed") ;
registry.register(layoutName, layoutType) ;
}
private LayoutType(String layoutName)
{
super(layoutName) ;
}
@Override
public String getName()
{
return super.getSymbol() ;
}
}