X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.4.0/lucene/contrib/grouping/src/java/org/apache/lucene/search/grouping/TopGroups.java?ds=sidebyside

diff --git a/lucene-java-3.4.0/lucene/contrib/grouping/src/java/org/apache/lucene/search/grouping/TopGroups.java b/lucene-java-3.4.0/lucene/contrib/grouping/src/java/org/apache/lucene/search/grouping/TopGroups.java
deleted file mode 100644
index c5c376e..0000000
--- a/lucene-java-3.4.0/lucene/contrib/grouping/src/java/org/apache/lucene/search/grouping/TopGroups.java
+++ /dev/null
@@ -1,165 +0,0 @@
-package org.apache.lucene.search.grouping;
-
-/**
- * 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.io.IOException;
-
-import org.apache.lucene.search.ScoreDoc;
-import org.apache.lucene.search.Sort;
-import org.apache.lucene.search.SortField;
-import org.apache.lucene.search.TopDocs;
-
-/** Represents result returned by a grouping search.
- *
- * @lucene.experimental */
-public class TopGroups<GROUP_VALUE_TYPE> {
-  /** Number of documents matching the search */
-  public final int totalHitCount;
-
-  /** Number of documents grouped into the topN groups */
-  public final int totalGroupedHitCount;
-
-  /** The total number of unique groups. If <code>null</code> this value is not computed. */
-  public final Integer totalGroupCount;
-
-  /** Group results in groupSort order */
-  public final GroupDocs<GROUP_VALUE_TYPE>[] groups;
-
-  /** How groups are sorted against each other */
-  public final SortField[] groupSort;
-
-  /** How docs are sorted within each group */
-  public final SortField[] withinGroupSort;
-
-  public TopGroups(SortField[] groupSort, SortField[] withinGroupSort, int totalHitCount, int totalGroupedHitCount, GroupDocs<GROUP_VALUE_TYPE>[] groups) {
-    this.groupSort = groupSort;
-    this.withinGroupSort = withinGroupSort;
-    this.totalHitCount = totalHitCount;
-    this.totalGroupedHitCount = totalGroupedHitCount;
-    this.groups = groups;
-    this.totalGroupCount = null;
-  }
-
-  public TopGroups(TopGroups<GROUP_VALUE_TYPE> oldTopGroups, Integer totalGroupCount) {
-    this.groupSort = oldTopGroups.groupSort;
-    this.withinGroupSort = oldTopGroups.withinGroupSort;
-    this.totalHitCount = oldTopGroups.totalHitCount;
-    this.totalGroupedHitCount = oldTopGroups.totalGroupedHitCount;
-    this.groups = oldTopGroups.groups;
-    this.totalGroupCount = totalGroupCount;
-  }
-
-  /** Merges an array of TopGroups, for example obtained
-   *  from the second-pass collector across multiple
-   *  shards.  Each TopGroups must have been sorted by the
-   *  same groupSort and docSort, and the top groups passed
-   *  to all second-pass collectors must be the same.
-   *
-   * <b>NOTE</b>: this cannot merge totalGroupCount; ie the
-   * returned TopGroups will have null totalGroupCount.
-   *
-   * <b>NOTE</b>: the topDocs in each GroupDocs is actually
-   * an instance of TopDocsAndShards
-   */
-  public static <T> TopGroups<T> merge(TopGroups<T>[] shardGroups, Sort groupSort, Sort docSort, int docOffset, int docTopN)
-    throws IOException {
-
-    //System.out.println("TopGroups.merge");
-
-    if (shardGroups.length == 0) {
-      return null;
-    }
-
-    int totalHitCount = 0;
-    int totalGroupedHitCount = 0;
-
-    final int numGroups = shardGroups[0].groups.length;
-    for(TopGroups<T> shard : shardGroups) {
-      if (numGroups != shard.groups.length) {
-        throw new IllegalArgumentException("number of groups differs across shards; you must pass same top groups to all shards' second-pass collector");
-      }
-      totalHitCount += shard.totalHitCount;
-      totalGroupedHitCount += shard.totalGroupedHitCount;
-    }
-
-    @SuppressWarnings("unchecked")
-    final GroupDocs<T>[] mergedGroupDocs = new GroupDocs[numGroups];
-
-    final TopDocs[] shardTopDocs = new TopDocs[shardGroups.length];
-
-    for(int groupIDX=0;groupIDX<numGroups;groupIDX++) {
-      final T groupValue = shardGroups[0].groups[groupIDX].groupValue;
-      //System.out.println("  merge groupValue=" + groupValue + " sortValues=" + Arrays.toString(shardGroups[0].groups[groupIDX].groupSortValues));
-      float maxScore = Float.MIN_VALUE;
-      int totalHits = 0;
-      for(int shardIDX=0;shardIDX<shardGroups.length;shardIDX++) {
-        //System.out.println("    shard=" + shardIDX);
-        final TopGroups<T> shard = shardGroups[shardIDX];
-        final GroupDocs shardGroupDocs = shard.groups[groupIDX];
-        if (groupValue == null) {
-          if (shardGroupDocs.groupValue != null) {
-            throw new IllegalArgumentException("group values differ across shards; you must pass same top groups to all shards' second-pass collector");
-          }
-        } else if (!groupValue.equals(shardGroupDocs.groupValue)) {
-          throw new IllegalArgumentException("group values differ across shards; you must pass same top groups to all shards' second-pass collector");
-        }
-
-        /*
-        for(ScoreDoc sd : shardGroupDocs.scoreDocs) {
-          System.out.println("      doc=" + sd.doc);
-        }
-        */
-
-        shardTopDocs[shardIDX] = new TopDocs(shardGroupDocs.totalHits,
-                                             shardGroupDocs.scoreDocs,
-                                             shardGroupDocs.maxScore);
-        maxScore = Math.max(maxScore, shardGroupDocs.maxScore);
-        totalHits += shardGroupDocs.totalHits;
-      }
-
-      final TopDocs mergedTopDocs = TopDocs.merge(docSort, docOffset + docTopN, shardTopDocs);
-
-      // Slice;
-      final ScoreDoc[] mergedScoreDocs;
-      if (docOffset == 0) {
-        mergedScoreDocs = mergedTopDocs.scoreDocs;
-      } else if (docOffset >= mergedTopDocs.scoreDocs.length) {
-        mergedScoreDocs = new ScoreDoc[0];
-      } else {
-        mergedScoreDocs = new ScoreDoc[mergedTopDocs.scoreDocs.length - docOffset];
-        System.arraycopy(mergedTopDocs.scoreDocs,
-                         docOffset,
-                         mergedScoreDocs,
-                         0,
-                         mergedTopDocs.scoreDocs.length - docOffset);
-      }
-      //System.out.println("SHARDS=" + Arrays.toString(mergedTopDocs.shardIndex));
-      mergedGroupDocs[groupIDX] = new GroupDocs<T>(maxScore,
-                                                   totalHits,
-                                                   mergedScoreDocs,
-                                                   groupValue,
-                                                   shardGroups[0].groups[groupIDX].groupSortValues);
-    }
-
-    return new TopGroups<T>(groupSort.getSort(),
-                            docSort == null ? null : docSort.getSort(),
-                            totalHitCount,
-                            totalGroupedHitCount,
-                            mergedGroupDocs);
-  }
-}