pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / spellchecker / src / java / org / apache / lucene / search / spell / PlainTextDictionary.java

diff --git a/lucene-java-3.5.0/lucene/contrib/spellchecker/src/java/org/apache/lucene/search/spell/PlainTextDictionary.java b/lucene-java-3.5.0/lucene/contrib/spellchecker/src/java/org/apache/lucene/search/spell/PlainTextDictionary.java
new file mode 100755 (executable)
index 0000000..2eaac46
--- /dev/null
+++ b/lucene-java-3.5.0/lucene/contrib/spellchecker/src/java/org/apache/lucene/search/spell/PlainTextDictionary.java
@@ -0,0 +1,82 @@
+package org.apache.lucene.search.spell;
+
+/**
+ * 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.Iterator;
+import java.io.*;
+
+
+/**
+ * Dictionary represented by a text file.
+ * 
+ * <p/>Format allowed: 1 word per line:<br/>
+ * word1<br/>
+ * word2<br/>
+ * word3<br/>
+ */
+public class PlainTextDictionary implements Dictionary {
+
+  private BufferedReader in;
+  private String line;
+  private boolean hasNextCalled;
+
+  public PlainTextDictionary(File file) throws FileNotFoundException {
+    in = new BufferedReader(new FileReader(file));
+  }
+
+  public PlainTextDictionary(InputStream dictFile) {
+    in = new BufferedReader(new InputStreamReader(dictFile));
+  }
+
+  /**
+   * Creates a dictionary based on a reader.
+   */
+  public PlainTextDictionary(Reader reader) {
+    in = new BufferedReader(reader);
+  }
+
+  public Iterator<String> getWordsIterator() {
+    return new fileIterator();
+  }
+
+  final class fileIterator implements Iterator<String> {
+    public String next() {
+      if (!hasNextCalled) {
+        hasNext();
+      }
+      hasNextCalled = false;
+      return line;
+    }
+
+    public boolean hasNext() {
+      hasNextCalled = true;
+      try {
+        line = in.readLine();
+      } catch (IOException ex) {
+        throw new RuntimeException(ex);
+      }
+      return (line != null) ? true : false;
+    }
+
+    public void remove() {
+      throw new UnsupportedOperationException();
+    }
+  }
+
+}