/*
* 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 tdb;
import java.util.Iterator ;
import org.openjena.atlas.lib.FileOps ;
import com.hp.hpl.jena.sparql.util.Utils ;
import com.hp.hpl.jena.tdb.base.block.BlockMgr ;
import com.hp.hpl.jena.tdb.base.block.BlockMgrFactory ;
import com.hp.hpl.jena.tdb.base.file.FileSet ;
import com.hp.hpl.jena.tdb.base.file.Location ;
import com.hp.hpl.jena.tdb.base.record.Record ;
import com.hp.hpl.jena.tdb.base.record.RecordFactory ;
import com.hp.hpl.jena.tdb.index.RangeIndex ;
import com.hp.hpl.jena.tdb.index.bplustree.BPlusTree ;
import com.hp.hpl.jena.tdb.index.bplustree.BPlusTreeParams ;
import com.hp.hpl.jena.tdb.index.bplustree.BPlusTreeRewriter ;
import com.hp.hpl.jena.tdb.sys.Names ;
import com.hp.hpl.jena.tdb.sys.SetupTDB ;
import com.hp.hpl.jena.tdb.sys.SystemTDB ;
/** Rewrite one index */
public class CmdRewriteIndex
{
public static void main(String...argv)
{
// Usage: srcLocation dstLocation indexName
if ( argv.length != 3 )
{
System.err.println("Usage: "+Utils.classShortName(CmdRewriteIndex.class)+" SrcLocation DstLocation IndexName") ;
System.exit(1) ;
}
Location srcLoc = new Location(argv[0]) ;
Location dstLoc = new Location(argv[1]) ;
String indexName = argv[2] ;
if ( ! FileOps.exists(argv[1]) )
{
System.err.println("Destination directory does not exist") ;
System.exit(1) ;
}
if ( FileOps.exists(dstLoc.getPath(indexName, Names.bptExtTree)) )
{
System.err.println("Destination contains an index of that name") ;
System.exit(1) ;
}
// To current directory ....
FileSet destination = new FileSet(dstLoc, indexName) ;
// Check existance
// FileOps.deleteSilent(destination.filename(Names.bptExt1)) ;
// FileOps.deleteSilent(destination.filename(Names.bptExt2)) ;
//FileSet destination = new FileSet(Location.mem(), destIndex) ;
int readCacheSize = 0 ;
int writeCacheSize = -1 ;
int dftKeyLength ;
int dftValueLength ;
if ( indexName.length() == 3 )
{
dftKeyLength = SystemTDB.LenIndexTripleRecord ;
dftValueLength = 0 ;
}
else if ( indexName.length() == 4 )
{
dftKeyLength = SystemTDB.LenIndexQuadRecord ;
dftValueLength = 0 ;
}
// else if ( srcIndex.equals("node2id") )
// { }
// java -cp "$CP" -server -Xmx1000M bpt.CmdRewriteIndex "$@" else if ( srcIndex.equals("prefixIdx") )
// {}
// else if ( srcIndex.equals("prefix2id") )
// {}
else
{
System.err.printf("Can't determine record size for %s\n",indexName) ;
return ;
}
RecordFactory recordFactory = null ;
BPlusTreeParams bptParams = null ;
BlockMgr blkMgrNodes ;
BlockMgr blkMgrRecords ;
int blockSize = SystemTDB.BlockSize ;
Iterator<Record> iterator ;
RangeIndex rangeIndex = SetupTDB.makeRangeIndex(srcLoc, indexName, dftKeyLength, dftValueLength, readCacheSize, writeCacheSize) ;
BPlusTree bpt = (BPlusTree)rangeIndex ;
bptParams = bpt.getParams() ;
recordFactory = bpt.getRecordFactory() ;
int blockSizeNodes = blockSize ;
int blockSizeRecords = blockSize ;
blkMgrNodes = BlockMgrFactory.create(destination, Names.bptExtTree, blockSizeNodes, readCacheSize, writeCacheSize) ;
blkMgrRecords = BlockMgrFactory.create(destination, Names.bptExtRecords, blockSizeRecords, readCacheSize, writeCacheSize) ;
iterator = bpt.iterator() ;
// // Fakery.
// blkMgrNodes = BlockMgrFactory.create(destination, Names.bptExt1, blockSize, readCacheSize, writeCacheSize) ;
// blkMgrRecords = BlockMgrFactory.create(destination, Names.bptExt2, blockSize, readCacheSize, writeCacheSize) ;
// recordFactory = new RecordFactory(dftKeyLength, dftValueLength) ;
// bptParams = new BPlusTreeParams(3, recordFactory) ;
// List<Record> data = TestBPlusTreeRewriter.createData(10, recordFactory) ;
// iterator = data.iterator() ;
//System.out.println("Rewrite: "+srcLoc+" "+indexName+" --> "+destination) ;
BPlusTree bpt2 = BPlusTreeRewriter.packIntoBPlusTree(iterator,
bptParams, recordFactory,
blkMgrNodes, blkMgrRecords) ;
if ( bpt2 == null )
return ;
//
// Iterator<Record> iter = bpt2.iterator() ;
// for ( ; iter.hasNext() ; )
// {
// Record r = iter.next() ;
// System.out.println(r) ;
// }
bpt2.close() ;
}
}