pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / analyzers / stempel / src / java / org / apache / lucene / analysis / stempel / StempelStemmer.java

diff --git a/lucene-java-3.4.0/lucene/contrib/analyzers/stempel/src/java/org/apache/lucene/analysis/stempel/StempelStemmer.java b/lucene-java-3.4.0/lucene/contrib/analyzers/stempel/src/java/org/apache/lucene/analysis/stempel/StempelStemmer.java
deleted file mode 100644 (file)
index bf31660..0000000
--- a/lucene-java-3.4.0/lucene/contrib/analyzers/stempel/src/java/org/apache/lucene/analysis/stempel/StempelStemmer.java
+++ /dev/null
@@ -1,101 +0,0 @@
-/**
- * Copyright 2004 The Apache Software Foundation
- * 
- * Licensed 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.stempel;
-
-import java.io.BufferedInputStream;
-import java.io.DataInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.Locale;
-
-import org.egothor.stemmer.Diff;
-import org.egothor.stemmer.Trie;
-
-/**
- * <p>
- * Stemmer class is a convenient facade for other stemmer-related classes. The
- * core stemming algorithm and its implementation is taken verbatim from the
- * Egothor project ( <a href="http://www.egothor.org">www.egothor.org </a>).
- * </p>
- * <p>
- * Even though the stemmer tables supplied in the distribution package are built
- * for Polish language, there is nothing language-specific here.
- * </p>
- */
-public class StempelStemmer {
-  private Trie stemmer = null;
-  private StringBuilder buffer = new StringBuilder();
-
-  /**
-   * Create a Stemmer using selected stemmer table
-   * 
-   * @param stemmerTable stemmer table.
-   */
-  public StempelStemmer(InputStream stemmerTable) throws IOException {
-    this(load(stemmerTable));
-  }
-
-  /**
-   * Create a Stemmer using pre-loaded stemmer table
-   * 
-   * @param stemmer pre-loaded stemmer table
-   */
-  public StempelStemmer(Trie stemmer) {
-    this.stemmer = stemmer;
-  }
-  
-  /**
-   * Load a stemmer table from an inputstream.
-   */
-  public static Trie load(InputStream stemmerTable) throws IOException {
-    DataInputStream in = null;
-    try {
-      in = new DataInputStream(new BufferedInputStream(stemmerTable));
-      String method = in.readUTF().toUpperCase(Locale.ENGLISH);
-      if (method.indexOf('M') < 0) {
-        return new org.egothor.stemmer.Trie(in);
-      } else {
-        return new org.egothor.stemmer.MultiTrie2(in);
-      }
-    } finally {
-      in.close();
-    }
-  }
-
-  /**
-   * Stem a word. 
-   * 
-   * @param word input word to be stemmed.
-   * @return stemmed word, or null if the stem could not be generated.
-   */
-  public StringBuilder stem(CharSequence word) {
-    CharSequence cmd = stemmer.getLastOnPath(word);
-    
-    if (cmd == null)
-        return null;
-    
-    buffer.setLength(0);
-    buffer.append(word);
-
-    Diff.apply(buffer, cmd);
-    
-    if (buffer.length() > 0)
-      return buffer;
-    else
-      return null;
-  }
-}