pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / facet / src / java / org / apache / lucene / facet / search / SamplingWrapper.java

diff --git a/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/facet/search/SamplingWrapper.java b/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/facet/search/SamplingWrapper.java
deleted file mode 100644 (file)
index 61a09b4..0000000
--- a/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/facet/search/SamplingWrapper.java
+++ /dev/null
@@ -1,118 +0,0 @@
-package org.apache.lucene.facet.search;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-
-import org.apache.lucene.facet.search.params.FacetSearchParams;
-import org.apache.lucene.facet.search.results.FacetResult;
-import org.apache.lucene.facet.search.results.FacetResultNode;
-import org.apache.lucene.facet.search.sampling.Sampler;
-import org.apache.lucene.facet.search.sampling.Sampler.SampleResult;
-
-/**
- * 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.
- */
-
-/**
- * Wrap any Facets Accumulator with sampling.
- * <p>
- * Note: Sampling accumulation (Accumulation over a sampled-set of the results),
- * does not guarantee accurate values for
- * {@link FacetResult#getNumValidDescendants()} &
- * {@link FacetResultNode#getResidue()}.
- * 
- * @lucene.experimental
- */
-public class SamplingWrapper extends FacetsAccumulator {
-
-  private FacetsAccumulator delegee;
-  private Sampler sampler;
-
-  public SamplingWrapper(FacetsAccumulator delegee, Sampler sampler) {
-    super(delegee.searchParams, delegee.indexReader, delegee.taxonomyReader);
-    this.delegee = delegee;
-    this.sampler = sampler;
-  }
-
-  @Override
-  public List<FacetResult> accumulate(ScoredDocIDs docids) throws IOException {
-    // first let delegee accumulate without labeling at all (though
-    // currently it doesn't matter because we have to label all returned anyhow)
-    boolean origAllowLabeling = isAllowLabeling();
-    setAllowLabeling(false);
-
-    // Replacing the original searchParams with the over-sampled (and without statistics-compute)
-    FacetSearchParams original = delegee.searchParams;
-    delegee.searchParams = sampler.overSampledSearchParams(original);
-    
-    SampleResult sampleSet = sampler.getSampleSet(docids);
-
-    List<FacetResult> sampleRes = delegee.accumulate(sampleSet.docids);
-    setAllowLabeling(origAllowLabeling);
-
-    List<FacetResult> fixedRes = new ArrayList<FacetResult>();
-    for (FacetResult fres : sampleRes) {
-      // for sure fres is not null because this is guaranteed by the delegee.
-      FacetResultsHandler frh = fres.getFacetRequest().createFacetResultsHandler(taxonomyReader);
-      // fix the result of current request
-      sampler.getSampleFixer(indexReader, taxonomyReader, searchParams)
-          .fixResult(docids, fres); 
-      fres = frh.rearrangeFacetResult(fres); // let delegee's handler do any
-      
-      // Using the sampler to trim the extra (over-sampled) results
-      fres = sampler.trimResult(fres);
-      
-      // final labeling if allowed (because labeling is a costly operation)
-      if (isAllowLabeling()) {
-        frh.labelResult(fres);
-      }
-      fixedRes.add(fres); // add to final results
-    }
-
-    delegee.searchParams = original; // Back to original params
-    
-    return fixedRes; 
-  }
-
-  /**
-   * @see FacetsAccumulator#getComplementThreshold()
-   */
-  @Override
-  public double getComplementThreshold() {
-    return delegee.getComplementThreshold();
-  }
-
-  /**
-   * @param complementThreshold
-   * @see FacetsAccumulator#setComplementThreshold(double)
-   */
-  @Override
-  public void setComplementThreshold(double complementThreshold) {
-    delegee.setComplementThreshold(complementThreshold);
-  }
-
-  @Override
-  protected boolean isAllowLabeling() {
-    return delegee.isAllowLabeling();
-  }
-
-  @Override
-  protected void setAllowLabeling(boolean allowLabeling) {
-    delegee.setAllowLabeling(allowLabeling);
-  }
-
-}