pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / benchmark / src / java / org / apache / lucene / benchmark / quality / utils / QualityQueriesFinder.java

diff --git a/lucene-java-3.4.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/quality/utils/QualityQueriesFinder.java b/lucene-java-3.4.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/quality/utils/QualityQueriesFinder.java
deleted file mode 100755 (executable)
index 263d339..0000000
--- a/lucene-java-3.4.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/quality/utils/QualityQueriesFinder.java
+++ /dev/null
@@ -1,134 +0,0 @@
-/**
- * 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.lucene.benchmark.quality.utils;
-
-import java.io.File;
-import java.io.IOException;
-
-import org.apache.lucene.index.IndexReader;
-import org.apache.lucene.index.Term;
-import org.apache.lucene.index.TermEnum;
-import org.apache.lucene.store.Directory;
-import org.apache.lucene.store.FSDirectory;
-import org.apache.lucene.util.PriorityQueue;
-
-/**
- * Suggest Quality queries based on an index contents.
- * Utility class, used for making quality test benchmarks.
- */
-public class QualityQueriesFinder {
-
-  private static final String newline = System.getProperty("line.separator");
-  private Directory dir;
-  
-  /**
-   * Constructor over a directory containing the index.
-   * @param dir directory containing the index we search for the quality test. 
-   */
-  private QualityQueriesFinder(Directory dir) {
-    this.dir = dir;
-  }
-
-  /**
-   * @param args {index-dir}
-   * @throws IOException  if cannot access the index.
-   */
-  public static void main(String[] args) throws IOException {
-    if (args.length<1) {
-      System.err.println("Usage: java QualityQueriesFinder <index-dir>");
-      System.exit(1);
-    }
-    QualityQueriesFinder qqf = new QualityQueriesFinder(FSDirectory.open(new File(args[0])));
-    String q[] = qqf.bestQueries("body",20);
-    for (int i=0; i<q.length; i++) {
-      System.out.println(newline+formatQueryAsTrecTopic(i,q[i],null,null));
-    }
-  }
-
-  private String [] bestQueries(String field,int numQueries) throws IOException {
-    String words[] = bestTerms("body",4*numQueries);
-    int n = words.length;
-    int m = n/4;
-    String res[] = new String[m];
-    for (int i=0; i<res.length; i++) {
-      res[i] = words[i] + " " + words[m+i]+ "  " + words[n-1-m-i]  + " " + words[n-1-i];
-      //System.out.println("query["+i+"]:  "+res[i]);
-    }
-    return res;
-  }
-  
-  private static String formatQueryAsTrecTopic (int qnum, String title, String description, String narrative) {
-    return 
-      "<top>" + newline +
-      "<num> Number: " + qnum             + newline + newline + 
-      "<title> " + (title==null?"":title) + newline + newline + 
-      "<desc> Description:"               + newline +
-      (description==null?"":description)  + newline + newline +
-      "<narr> Narrative:"                 + newline +
-      (narrative==null?"":narrative)      + newline + newline +
-      "</top>";
-  }
-  
-  private String [] bestTerms(String field,int numTerms) throws IOException {
-    PriorityQueue<TermDf> pq = new TermsDfQueue(numTerms);
-    IndexReader ir = IndexReader.open(dir, true);
-    try {
-      int threshold = ir.maxDoc() / 10; // ignore words too common.
-      TermEnum terms = ir.terms(new Term(field,""));
-      while (terms.next()) {
-        if (!field.equals(terms.term().field())) {
-          break;
-        }
-        int df = terms.docFreq();
-        if (df<threshold) {
-          String ttxt = terms.term().text();
-          pq.insertWithOverflow(new TermDf(ttxt,df));
-        }
-      }
-    } finally {
-      ir.close();
-    }
-    String res[] = new String[pq.size()];
-    int i = 0;
-    while (pq.size()>0) {
-      TermDf tdf = pq.pop(); 
-      res[i++] = tdf.word;
-      System.out.println(i+".   word:  "+tdf.df+"   "+tdf.word);
-    }
-    return res;
-  }
-
-  private static class TermDf {
-    String word;
-    int df;
-    TermDf (String word, int freq) {
-      this.word = word;
-      this.df = freq;
-    }
-  }
-  
-  private static class TermsDfQueue extends PriorityQueue<TermDf> {
-    TermsDfQueue (int maxSize) {
-      initialize(maxSize);
-    }
-    @Override
-    protected boolean lessThan(TermDf tf1, TermDf tf2) {
-      return tf1.df < tf2.df;
-    }
-  }
-  
-}