pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / highlighter / src / java / org / apache / lucene / search / highlight / SimpleSpanFragmenter.java

diff --git a/lucene-java-3.4.0/lucene/contrib/highlighter/src/java/org/apache/lucene/search/highlight/SimpleSpanFragmenter.java b/lucene-java-3.4.0/lucene/contrib/highlighter/src/java/org/apache/lucene/search/highlight/SimpleSpanFragmenter.java
deleted file mode 100644 (file)
index c468867..0000000
--- a/lucene-java-3.4.0/lucene/contrib/highlighter/src/java/org/apache/lucene/search/highlight/SimpleSpanFragmenter.java
+++ /dev/null
@@ -1,108 +0,0 @@
-package org.apache.lucene.search.highlight;
-
-
-/**
- * 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.util.List;
-
-import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
-import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
-import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute;
-import org.apache.lucene.search.spans.Spans;
-
-
-/**
- * {@link Fragmenter} implementation which breaks text up into same-size
- * fragments but does not split up {@link Spans}. This is a simple sample class.
- */
-public class SimpleSpanFragmenter implements Fragmenter {
-  private static final int DEFAULT_FRAGMENT_SIZE = 100;
-  private int fragmentSize;
-  private int currentNumFrags;
-  private int position = -1;
-  private QueryScorer queryScorer;
-  private int waitForPos = -1;
-  private int textSize;
-  private CharTermAttribute termAtt;
-  private PositionIncrementAttribute posIncAtt;
-  private OffsetAttribute offsetAtt;
-
-  /**
-   * @param queryScorer QueryScorer that was used to score hits
-   */
-  public SimpleSpanFragmenter(QueryScorer queryScorer) {
-    this(queryScorer, DEFAULT_FRAGMENT_SIZE);
-  }
-
-  /**
-   * @param queryScorer QueryScorer that was used to score hits
-   * @param fragmentSize size in bytes of each fragment
-   */
-  public SimpleSpanFragmenter(QueryScorer queryScorer, int fragmentSize) {
-    this.fragmentSize = fragmentSize;
-    this.queryScorer = queryScorer;
-  }
-  
-  /* (non-Javadoc)
-   * @see org.apache.lucene.search.highlight.Fragmenter#isNewFragment()
-   */
-  public boolean isNewFragment() {
-    position += posIncAtt.getPositionIncrement();
-
-    if (waitForPos == position) {
-      waitForPos = -1;
-    } else if (waitForPos != -1) {
-      return false;
-    }
-
-    WeightedSpanTerm wSpanTerm = queryScorer.getWeightedSpanTerm(termAtt.toString());
-
-    if (wSpanTerm != null) {
-      List<PositionSpan> positionSpans = wSpanTerm.getPositionSpans();
-
-      for (int i = 0; i < positionSpans.size(); i++) {
-        if (positionSpans.get(i).start == position) {
-          waitForPos = positionSpans.get(i).end + 1;
-          break;
-        }
-      }
-    }
-
-    boolean isNewFrag = offsetAtt.endOffset() >= (fragmentSize * currentNumFrags)
-        && (textSize - offsetAtt.endOffset()) >= (fragmentSize >>> 1);
-    
-    if (isNewFrag) {
-      currentNumFrags++;
-    }
-
-    return isNewFrag;
-  }
-
-
-  /* (non-Javadoc)
-   * @see org.apache.lucene.search.highlight.Fragmenter#start(java.lang.String, org.apache.lucene.analysis.TokenStream)
-   */
-  public void start(String originalText, TokenStream tokenStream) {
-    position = -1;
-    currentNumFrags = 1;
-    textSize = originalText.length();
-    termAtt = tokenStream.addAttribute(CharTermAttribute.class);
-    posIncAtt = tokenStream.addAttribute(PositionIncrementAttribute.class);
-    offsetAtt = tokenStream.addAttribute(OffsetAttribute.class);
-  }
-}