X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.5.0/lucene/contrib/spellchecker/src/java/org/apache/lucene/search/suggest/FileDictionary.java

diff --git a/lucene-java-3.5.0/lucene/contrib/spellchecker/src/java/org/apache/lucene/search/suggest/FileDictionary.java b/lucene-java-3.5.0/lucene/contrib/spellchecker/src/java/org/apache/lucene/search/suggest/FileDictionary.java
new file mode 100644
index 0000000..b9cd5f5
--- /dev/null
+++ b/lucene-java-3.5.0/lucene/contrib/spellchecker/src/java/org/apache/lucene/search/suggest/FileDictionary.java
@@ -0,0 +1,95 @@
+package org.apache.lucene.search.suggest;
+
+/**
+ * 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.io.*;
+
+import org.apache.lucene.search.spell.Dictionary;
+import org.apache.lucene.search.spell.TermFreqIterator;
+
+
+/**
+ * Dictionary represented by a text file.
+ * 
+ * <p/>Format allowed: 1 string per line, optionally with a tab-separated integer value:<br/>
+ * word1 TAB 100<br/>
+ * word2 word3 TAB 101<br/>
+ * word4 word5 TAB 102<br/>
+ */
+public class FileDictionary implements Dictionary {
+
+  private BufferedReader in;
+  private String line;
+  private boolean hasNextCalled;
+
+  public FileDictionary(InputStream dictFile) {
+    in = new BufferedReader(new InputStreamReader(dictFile));
+  }
+
+  /**
+   * Creates a dictionary based on a reader.
+   */
+  public FileDictionary(Reader reader) {
+    in = new BufferedReader(reader);
+  }
+
+  public TermFreqIterator getWordsIterator() {
+    return new fileIterator();
+  }
+
+  final class fileIterator implements TermFreqIterator {
+    private float curFreq;
+    
+    public String next() {
+      if (!hasNextCalled) {
+        hasNext();
+      }
+      hasNextCalled = false;
+      return line;
+    }
+    
+    public float freq() {
+      return curFreq;
+    }
+
+    public boolean hasNext() {
+      hasNextCalled = true;
+      try {
+        line = in.readLine();
+        if (line != null) {
+          String[] fields = line.split("\t");
+          if (fields.length > 1) {
+            curFreq = Float.parseFloat(fields[1]);
+            line = fields[0];
+          } else {
+            curFreq = 1;
+          }
+        }
+      } catch (IOException ex) {
+        throw new RuntimeException(ex);
+      }
+      return (line != null) ? true : false;
+    }
+
+    public void remove() {
+      throw new UnsupportedOperationException();
+    }
+  }
+
+}