pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / facet / src / examples / org / apache / lucene / facet / example / association / AssociationSearcher.java

diff --git a/lucene-java-3.5.0/lucene/contrib/facet/src/examples/org/apache/lucene/facet/example/association/AssociationSearcher.java b/lucene-java-3.5.0/lucene/contrib/facet/src/examples/org/apache/lucene/facet/example/association/AssociationSearcher.java
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+++ b/lucene-java-3.5.0/lucene/contrib/facet/src/examples/org/apache/lucene/facet/example/association/AssociationSearcher.java
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+package org.apache.lucene.facet.example.association;
+
+import java.util.List;
+
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.store.Directory;
+
+import org.apache.lucene.facet.example.simple.SimpleSearcher;
+import org.apache.lucene.facet.search.params.association.AssociationFloatSumFacetRequest;
+import org.apache.lucene.facet.search.params.association.AssociationIntSumFacetRequest;
+import org.apache.lucene.facet.search.results.FacetResult;
+import org.apache.lucene.facet.taxonomy.CategoryPath;
+import org.apache.lucene.facet.taxonomy.TaxonomyReader;
+import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader;
+
+/**
+ * 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.
+ */
+
+/**
+ * AssociationSearcher searches index with facets, evaluating the facets with
+ * their associated $int value
+ * 
+ * @lucene.experimental
+ */
+public class AssociationSearcher {
+
+  /** Search an index with a sum of int-association. */
+  public static List<FacetResult> searchSumIntAssociation(Directory indexDir,
+      Directory taxoDir) throws Exception {
+    // prepare index reader 
+    IndexReader indexReader = IndexReader.open(indexDir);
+    TaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
+    
+    AssociationIntSumFacetRequest facetRequest = new AssociationIntSumFacetRequest(
+        new CategoryPath("tags"), 10);
+    
+    List<FacetResult> res = SimpleSearcher.searchWithRequest(indexReader, taxo,
+        AssociationUtils.assocIndexingParams, facetRequest);
+    
+    // close readers
+    taxo.close();
+    indexReader.close();
+    
+    return res;
+  }
+  
+  /** Search an index with a sum of float-association. */
+  public static List<FacetResult> searchSumFloatAssociation(Directory indexDir,
+      Directory taxoDir) throws Exception {
+    // prepare index reader 
+    IndexReader indexReader = IndexReader.open(indexDir);
+    TaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
+    
+    AssociationFloatSumFacetRequest facetRequest = new AssociationFloatSumFacetRequest(
+        new CategoryPath("genre"), 10);
+    
+    List<FacetResult> res = SimpleSearcher.searchWithRequest(indexReader, taxo,
+        AssociationUtils.assocIndexingParams, facetRequest);
+    
+    // close readers
+    taxo.close();
+    indexReader.close();
+    
+    return res;
+  }
+  
+}