pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / benchmark / src / java / org / apache / lucene / benchmark / byTask / tasks / DeleteByPercentTask.java

diff --git a/lucene-java-3.4.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/tasks/DeleteByPercentTask.java b/lucene-java-3.4.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/tasks/DeleteByPercentTask.java
deleted file mode 100644 (file)
index a801cee..0000000
--- a/lucene-java-3.4.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/tasks/DeleteByPercentTask.java
+++ /dev/null
@@ -1,94 +0,0 @@
-package org.apache.lucene.benchmark.byTask.tasks;
-
-/**
- * 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.
- */
-
-import java.util.Random;
-
-import org.apache.lucene.benchmark.byTask.PerfRunData;
-import org.apache.lucene.index.IndexReader;
-import org.apache.lucene.index.TermDocs;
-
-/**
- * Deletes a percentage of documents from an index randomly
- * over the number of documents.  The parameter, X, is in
- * percent.  EG 50 means 1/2 of all documents will be
- * deleted.
- *
- * <p><b>NOTE</b>: the param is an absolute percentage of
- * maxDoc().  This means if you delete 50%, and then delete
- * 50% again, the 2nd delete will do nothing.
- *
- * <p> Parameters:
- * <ul>
- * <li> delete.percent.rand.seed - defines the seed to
- * initialize Random (default 1717)
- * </ul>
- */
-public class DeleteByPercentTask extends PerfTask {
-  double percent;
-  int numDeleted = 0;
-  final Random random;
-
-  public DeleteByPercentTask(PerfRunData runData) {
-    super(runData);
-    random = new Random(runData.getConfig().get("delete.percent.rand.seed", 1717));
-  }
-  
-  @Override
-  public void setup() throws Exception {
-    super.setup();
-  }
-
-  @Override
-  public void setParams(String params) {
-    super.setParams(params);
-    percent = Double.parseDouble(params)/100;
-  }
-
-  @Override
-  public boolean supportsParams() {
-    return true;
-  }
-
-  @Override
-  public int doLogic() throws Exception {
-    IndexReader r = getRunData().getIndexReader();
-    int maxDoc = r.maxDoc();
-    int numDeleted = 0;
-    // percent is an absolute target:
-    int numToDelete = ((int) (maxDoc * percent)) - r.numDeletedDocs();
-    if (numToDelete < 0) {
-      r.undeleteAll();
-      numToDelete = (int) (maxDoc * percent);
-    }
-    while (numDeleted < numToDelete) {
-      double delRate = ((double) (numToDelete-numDeleted))/r.numDocs();
-      TermDocs termDocs = r.termDocs(null);
-      while (termDocs.next() && numDeleted < numToDelete) {
-        if (random.nextDouble() <= delRate) {
-          r.deleteDocument(termDocs.doc());
-          numDeleted++;
-        }
-      }
-      termDocs.close();
-    }
-    System.out.println("--> processed (delete) " + numDeleted + " docs");
-    r.decRef();
-    return numDeleted;
-  }
-}