pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / backwards / src / test / org / apache / lucene / TestDemo.java

diff --git a/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/TestDemo.java b/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/TestDemo.java
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+package org.apache.lucene;
+
+/**
+ * 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.IOException;
+
+import org.apache.lucene.analysis.Analyzer;
+import org.apache.lucene.analysis.MockAnalyzer;
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+import org.apache.lucene.index.RandomIndexWriter;
+import org.apache.lucene.queryParser.ParseException;
+import org.apache.lucene.queryParser.QueryParser;
+import org.apache.lucene.search.TopDocs;
+import org.apache.lucene.search.IndexSearcher;
+import org.apache.lucene.search.Query;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.util.LuceneTestCase;
+
+/**
+ * A very simple demo used in the API documentation (src/java/overview.html).
+ *
+ * Please try to keep src/java/overview.html up-to-date when making changes
+ * to this class.
+ */
+public class TestDemo extends LuceneTestCase {
+
+  public void testDemo() throws IOException, ParseException {
+    Analyzer analyzer = new MockAnalyzer(random);
+
+    // Store the index in memory:
+    Directory directory = newDirectory();
+    // To store an index on disk, use this instead:
+    //Directory directory = FSDirectory.open("/tmp/testindex");
+    RandomIndexWriter iwriter = new RandomIndexWriter(random, directory, analyzer);
+    iwriter.w.setInfoStream(VERBOSE ? System.out : null);
+    Document doc = new Document();
+    String text = "This is the text to be indexed.";
+    doc.add(newField("fieldname", text, Field.Store.YES,
+        Field.Index.ANALYZED));
+    iwriter.addDocument(doc);
+    iwriter.close();
+    
+    // Now search the index:
+    IndexSearcher isearcher = new IndexSearcher(directory, true); // read-only=true
+    // Parse a simple query that searches for "text":
+    QueryParser parser = new QueryParser(TEST_VERSION_CURRENT, "fieldname", analyzer);
+    Query query = parser.parse("text");
+    TopDocs hits = isearcher.search(query, null, 1);
+    assertEquals(1, hits.totalHits);
+    // Iterate through the results:
+    for (int i = 0; i < hits.scoreDocs.length; i++) {
+      Document hitDoc = isearcher.doc(hits.scoreDocs[i].doc);
+      assertEquals("This is the text to be indexed.", hitDoc.get("fieldname"));
+    }
+
+    // Test simple phrase query
+    query = parser.parse("\"to be\"");
+    assertEquals(1, isearcher.search(query, null, 1).totalHits);
+
+    isearcher.close();
+    directory.close();
+  }
+}