/*
* 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 com.hp.hpl.jena.tdb.index.ext;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.openjena.atlas.lib.ListUtils.asList ;
import static org.openjena.atlas.lib.ListUtils.unique ;
import static org.openjena.atlas.lib.RandomLib.random ;
import static org.openjena.atlas.test.Gen.permute ;
import static org.openjena.atlas.test.Gen.rand ;
import static org.openjena.atlas.test.Gen.strings ;
import java.util.Iterator;
import java.util.List;
import org.openjena.atlas.lib.Bytes ;
import org.openjena.atlas.test.ExecGenerator ;
import org.openjena.atlas.test.RepeatExecution ;
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.ext.ExtHash;
public class ExtHashTestBase
{
public static final RecordFactory factory = new RecordFactory(4, 4) ;
public static void randTests(int maxValue, int maxNumKeys, int iterations, boolean showProgess)
{
ExtHashTest test = new ExtHashTest(maxValue, maxNumKeys) ;
RepeatExecution.repeatExecutions(test, iterations, showProgess) ;
}
static class ExtHashTest implements ExecGenerator
{
int maxNumKeys ;
int maxValue ;
ExtHashTest(int maxValue, int maxNumKeys)
{
if ( maxValue <= maxNumKeys )
throw new IllegalArgumentException("ExtHashTest: Max value less than number of keys") ;
this.maxValue = maxValue ;
this.maxNumKeys = maxNumKeys ;
}
@Override
public void executeOneTest()
{
int numKeys = random.nextInt(maxNumKeys)+1 ;
randTest(maxValue, numKeys) ;
}
}
public static void randTest(int maxValue, int numKeys)
{
// if ( numKeys >= 3000 )
// System.err.printf("Warning: too many keys\n") ;
int[] r1 = rand(numKeys, 0, maxValue) ;
int[] r2 = permute(r1, 4*numKeys) ;
runTest(r1, r2) ;
}
public static void runTest(int[] r1, int[] r2)
{
try {
ExtHash extHash = create(r1) ;
check(extHash, r1) ;
delete(extHash, r2) ;
check(extHash) ;
} catch (RuntimeException ex)
{
System.err.println() ;
System.err.printf("int[] r1 = {%s} ;\n", strings(r1)) ;
System.err.printf("int[] r2 = {%s}; \n", strings(r2)) ;
throw ex ;
}
}
public static ExtHash make()
{
return ExtHash.createMem(factory, 128) ;
}
public static Record intToRecord(int v)
{
byte[] key = Bytes.packInt(v) ;
byte[] val = Bytes.packInt(v+100) ;
return factory.create(key, val) ;
}
public static Record intToRecordKey(int v)
{
byte[] key = Bytes.packInt(v) ;
return factory.create(key) ;
}
public static ExtHash create(int...recs)
{
ExtHash extHash = make() ;
for ( int i : recs )
{
Record r = intToRecord(i) ;
extHash.add(r) ;
if ( false ) extHash.dump() ;
}
return extHash ;
}
public static ExtHash delete(ExtHash extHash, int...recs)
{
for ( int i : recs )
{
Record r = intToRecord(i) ;
extHash.delete(r) ;
}
return extHash ;
}
public static void check(ExtHash extHash, int...recs)
{
extHash.check();
for ( int i : recs )
{
Record r = intToRecordKey(i) ;
assertNotNull(extHash.find(r)) ;
}
List<Integer> y = unique(asList(recs)) ;
int x = (int)extHash.size() ;
assertEquals(y.size(), x);
}
public static void check(Iterator<Integer> iter, int...recs)
{
for ( int i : recs )
{
assertTrue("Iterator shorter than test answers", iter.hasNext()) ;
int j = iter.next() ;
assertEquals(i,j) ;
}
assertFalse("Iterator longer than test answers", iter.hasNext()) ;
}
}