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Posted to commits@lucene.apache.org by cp...@apache.org on 2016/09/30 15:13:21 UTC

[3/4] lucene-solr:branch_6x: SOLR-9574: Factor out AbstractReRankQuery from ReRankQParserPlugin's private ReRankQuery.

SOLR-9574: Factor out AbstractReRankQuery from ReRankQParserPlugin's private ReRankQuery.


Project: http://git-wip-us.apache.org/repos/asf/lucene-solr/repo
Commit: http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/031de301
Tree: http://git-wip-us.apache.org/repos/asf/lucene-solr/tree/031de301
Diff: http://git-wip-us.apache.org/repos/asf/lucene-solr/diff/031de301

Branch: refs/heads/branch_6x
Commit: 031de301c211164572bd52925c668cfed01927aa
Parents: e8ec990
Author: Christine Poerschke <cp...@apache.org>
Authored: Wed Sep 28 18:49:37 2016 +0100
Committer: Christine Poerschke <cp...@apache.org>
Committed: Fri Sep 30 15:42:01 2016 +0100

----------------------------------------------------------------------
 .../apache/solr/search/AbstractReRankQuery.java | 83 ++++++++++++++++++++
 .../apache/solr/search/ReRankQParserPlugin.java | 56 +------------
 2 files changed, 87 insertions(+), 52 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/031de301/solr/core/src/java/org/apache/solr/search/AbstractReRankQuery.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/AbstractReRankQuery.java b/solr/core/src/java/org/apache/solr/search/AbstractReRankQuery.java
new file mode 100644
index 0000000..94da26c
--- /dev/null
+++ b/solr/core/src/java/org/apache/solr/search/AbstractReRankQuery.java
@@ -0,0 +1,83 @@
+/*
+ * 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.solr.search;
+
+import java.io.IOException;
+import java.util.Map;
+
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.search.IndexSearcher;
+import org.apache.lucene.search.Query;
+import org.apache.lucene.search.Rescorer;
+import org.apache.lucene.search.TopDocsCollector;
+import org.apache.lucene.search.Weight;
+import org.apache.lucene.util.BytesRef;
+import org.apache.solr.handler.component.MergeStrategy;
+import org.apache.solr.handler.component.QueryElevationComponent;
+import org.apache.solr.request.SolrRequestInfo;
+
+public abstract class AbstractReRankQuery extends RankQuery {
+  protected Query mainQuery;
+  final protected int reRankDocs;
+  final protected Rescorer reRankQueryRescorer;
+  protected Map<BytesRef, Integer> boostedPriority;
+
+  public AbstractReRankQuery(Query mainQuery, int reRankDocs, Rescorer reRankQueryRescorer) {
+    this.mainQuery = mainQuery;
+    this.reRankDocs = reRankDocs;
+    this.reRankQueryRescorer = reRankQueryRescorer;
+  }
+
+  public RankQuery wrap(Query _mainQuery) {
+    if(_mainQuery != null){
+      this.mainQuery = _mainQuery;
+    }
+    return  this;
+  }
+
+  public MergeStrategy getMergeStrategy() {
+    return null;
+  }
+
+  public TopDocsCollector getTopDocsCollector(int len, QueryCommand cmd, IndexSearcher searcher) throws IOException {
+
+    if(this.boostedPriority == null) {
+      SolrRequestInfo info = SolrRequestInfo.getRequestInfo();
+      if(info != null) {
+        Map context = info.getReq().getContext();
+        this.boostedPriority = (Map<BytesRef, Integer>)context.get(QueryElevationComponent.BOOSTED_PRIORITY);
+      }
+    }
+
+    return new ReRankCollector(reRankDocs, len, reRankQueryRescorer, cmd, searcher, boostedPriority);
+  }
+
+  public Query rewrite(IndexReader reader) throws IOException {
+    Query q = mainQuery.rewrite(reader);
+    if (q != mainQuery) {
+      return rewrite(q);
+    }
+    return super.rewrite(reader);
+  }
+
+  protected abstract Query rewrite(Query rewrittenMainQuery) throws IOException;
+
+  public Weight createWeight(IndexSearcher searcher, boolean needsScores) throws IOException{
+    final Weight mainWeight = mainQuery.createWeight(searcher, needsScores);
+    return new ReRankWeight(mainQuery, reRankQueryRescorer, searcher, mainWeight);
+  }
+}

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/031de301/solr/core/src/java/org/apache/solr/search/ReRankQParserPlugin.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/ReRankQParserPlugin.java b/solr/core/src/java/org/apache/solr/search/ReRankQParserPlugin.java
index a8eaba6..3e8bf86 100644
--- a/solr/core/src/java/org/apache/solr/search/ReRankQParserPlugin.java
+++ b/solr/core/src/java/org/apache/solr/search/ReRankQParserPlugin.java
@@ -17,23 +17,13 @@
 package org.apache.solr.search;
 
 import java.io.IOException;
-import java.util.Map;
 
-import org.apache.lucene.index.IndexReader;
-import org.apache.lucene.search.IndexSearcher;
 import org.apache.lucene.search.MatchAllDocsQuery;
 import org.apache.lucene.search.Query;
 import org.apache.lucene.search.QueryRescorer;
-import org.apache.lucene.search.Rescorer;
-import org.apache.lucene.search.TopDocsCollector;
-import org.apache.lucene.search.Weight;
-import org.apache.lucene.util.BytesRef;
 import org.apache.solr.common.SolrException;
 import org.apache.solr.common.params.SolrParams;
-import org.apache.solr.handler.component.MergeStrategy;
-import org.apache.solr.handler.component.QueryElevationComponent;
 import org.apache.solr.request.SolrQueryRequest;
-import org.apache.solr.request.SolrRequestInfo;
 
 /*
 *
@@ -100,13 +90,9 @@ public class ReRankQParserPlugin extends QParserPlugin {
     }
   }
 
-  private final class ReRankQuery extends RankQuery {
-    private Query mainQuery = defaultQuery;
+  private final class ReRankQuery extends AbstractReRankQuery {
     final private Query reRankQuery;
-    final private int reRankDocs;
     final private double reRankWeight;
-    final private Rescorer reRankQueryRescorer;
-    private Map<BytesRef, Integer> boostedPriority;
 
     public int hashCode() {
       return 31 * classHash() + mainQuery.hashCode()+reRankQuery.hashCode()+(int)reRankWeight+reRankDocs;
@@ -125,34 +111,9 @@ public class ReRankQParserPlugin extends QParserPlugin {
     }
 
     public ReRankQuery(Query reRankQuery, int reRankDocs, double reRankWeight) {
+      super(defaultQuery, reRankDocs, new ReRankQueryRescorer(reRankQuery, reRankWeight));
       this.reRankQuery = reRankQuery;
-      this.reRankDocs = reRankDocs;
       this.reRankWeight = reRankWeight;
-      this.reRankQueryRescorer = new ReRankQueryRescorer(reRankQuery, reRankWeight);
-    }
-
-    public RankQuery wrap(Query _mainQuery) {
-      if(_mainQuery != null){
-        this.mainQuery = _mainQuery;
-      }
-      return  this;
-    }
-
-    public MergeStrategy getMergeStrategy() {
-      return null;
-    }
-
-    public TopDocsCollector getTopDocsCollector(int len, QueryCommand cmd, IndexSearcher searcher) throws IOException {
-
-      if(this.boostedPriority == null) {
-        SolrRequestInfo info = SolrRequestInfo.getRequestInfo();
-        if(info != null) {
-          Map context = info.getReq().getContext();
-          this.boostedPriority = (Map<BytesRef, Integer>)context.get(QueryElevationComponent.BOOSTED_PRIORITY);
-        }
-      }
-
-      return new ReRankCollector(reRankDocs, len, reRankQueryRescorer, cmd, searcher, boostedPriority);
     }
 
     @Override
@@ -166,17 +127,8 @@ public class ReRankQParserPlugin extends QParserPlugin {
       return sb.toString();
     }
 
-    public Query rewrite(IndexReader reader) throws IOException {
-      Query q = mainQuery.rewrite(reader);
-      if (q != mainQuery) {
-        return new ReRankQuery(reRankQuery, reRankDocs, reRankWeight).wrap(q);
-      }
-      return super.rewrite(reader);
-    }
-
-    public Weight createWeight(IndexSearcher searcher, boolean needsScores) throws IOException{
-      final Weight mainWeight = mainQuery.createWeight(searcher, needsScores);
-      return new ReRankWeight(mainQuery, reRankQueryRescorer, searcher, mainWeight);
+    protected Query rewrite(Query rewrittenMainQuery) throws IOException {
+      return new ReRankQuery(reRankQuery, reRankDocs, reRankWeight).wrap(rewrittenMainQuery);
     }
   }
 }