pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / analyzers / smartcn / src / java / org / apache / lucene / analysis / cn / smart / WordTokenFilter.java

diff --git a/lucene-java-3.4.0/lucene/contrib/analyzers/smartcn/src/java/org/apache/lucene/analysis/cn/smart/WordTokenFilter.java b/lucene-java-3.4.0/lucene/contrib/analyzers/smartcn/src/java/org/apache/lucene/analysis/cn/smart/WordTokenFilter.java
deleted file mode 100644 (file)
index 6f0ecea..0000000
--- a/lucene-java-3.4.0/lucene/contrib/analyzers/smartcn/src/java/org/apache/lucene/analysis/cn/smart/WordTokenFilter.java
+++ /dev/null
@@ -1,90 +0,0 @@
-/**
- * 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.lucene.analysis.cn.smart;
-
-import java.io.IOException;
-import java.util.Iterator;
-import java.util.List;
-
-import org.apache.lucene.analysis.TokenFilter;
-import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.cn.smart.hhmm.SegToken;
-import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
-import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
-import org.apache.lucene.analysis.tokenattributes.TypeAttribute;
-
-/**
- * A {@link TokenFilter} that breaks sentences into words.
- * @lucene.experimental
- */
-public final class WordTokenFilter extends TokenFilter {
-
-  private WordSegmenter wordSegmenter;
-
-  private Iterator<SegToken> tokenIter;
-
-  private List<SegToken> tokenBuffer;
-  
-  private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
-  private final OffsetAttribute offsetAtt = addAttribute(OffsetAttribute.class);
-  private final TypeAttribute typeAtt = addAttribute(TypeAttribute.class);
-
-  /**
-   * Construct a new WordTokenizer.
-   * 
-   * @param in {@link TokenStream} of sentences 
-   */
-  public WordTokenFilter(TokenStream in) {
-    super(in);
-    this.wordSegmenter = new WordSegmenter();
-  }
-  
-  @Override
-  public boolean incrementToken() throws IOException {   
-    if (tokenIter == null || !tokenIter.hasNext()) {
-      // there are no remaining tokens from the current sentence... are there more sentences?
-      if (input.incrementToken()) {
-        // a new sentence is available: process it.
-        tokenBuffer = wordSegmenter.segmentSentence(termAtt.toString(), offsetAtt.startOffset());
-        tokenIter = tokenBuffer.iterator();
-        /* 
-         * it should not be possible to have a sentence with 0 words, check just in case.
-         * returning EOS isn't the best either, but its the behavior of the original code.
-         */
-        if (!tokenIter.hasNext())
-          return false;
-      } else {
-        return false; // no more sentences, end of stream!
-      }
-    } 
-    // WordTokenFilter must clear attributes, as it is creating new tokens.
-    clearAttributes();
-    // There are remaining tokens from the current sentence, return the next one. 
-    SegToken nextWord = tokenIter.next();
-    termAtt.copyBuffer(nextWord.charArray, 0, nextWord.charArray.length);
-    offsetAtt.setOffset(nextWord.startOffset, nextWord.endOffset);
-    typeAtt.setType("word");
-    return true;
-  }
-
-  @Override
-  public void reset() throws IOException {
-    super.reset();
-    tokenIter = null;
-  }
-}