Lucene example source code file (TestReversePathHierarchyTokenizer.java)

This example Lucene source code file (TestReversePathHierarchyTokenizer.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Lucene tags/keywords

basetokenstreamtestcase, exception, exception, io, reversepathhierarchytokenizer, reversepathhierarchytokenizer, string, string, stringreader, stringreader, testreversepathhierarchytokenizer

The Lucene TestReversePathHierarchyTokenizer.java source code

package org.apache.lucene.analysis.path;

/**
 * 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.StringReader;

import org.apache.lucene.analysis.BaseTokenStreamTestCase;

public class TestReversePathHierarchyTokenizer extends BaseTokenStreamTestCase {

  public void testBasicReverse() throws Exception {
    String path = "/a/b/c";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path) );
    assertTokenStreamContents(t,
        new String[]{"/a/b/c", "a/b/c", "b/c", "c"},
        new int[]{0, 1, 3, 5},
        new int[]{6, 6, 6, 6},
        new int[]{1, 0, 0, 0},
        path.length());
  }

  public void testEndOfDelimiterReverse() throws Exception {
    String path = "/a/b/c/";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path) );
    assertTokenStreamContents(t,
        new String[]{"/a/b/c/", "a/b/c/", "b/c/", "c/"},
        new int[]{0, 1, 3, 5},
        new int[]{7, 7, 7, 7},
        new int[]{1, 0, 0, 0},
        path.length());
  }

  public void testStartOfCharReverse() throws Exception {
    String path = "a/b/c";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path) );
    assertTokenStreamContents(t,
        new String[]{"a/b/c", "b/c", "c"},
        new int[]{0, 2, 4},
        new int[]{5, 5, 5},
        new int[]{1, 0, 0},
        path.length());
  }

  public void testStartOfCharEndOfDelimiterReverse() throws Exception {
    String path = "a/b/c/";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path) );
    assertTokenStreamContents(t,
        new String[]{"a/b/c/", "b/c/", "c/"},
        new int[]{0, 2, 4},
        new int[]{6, 6, 6},
        new int[]{1, 0, 0},
        path.length());
  }

  public void testOnlyDelimiterReverse() throws Exception {
    String path = "/";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path) );
    assertTokenStreamContents(t,
        new String[]{"/"},
        new int[]{0},
        new int[]{1},
        new int[]{1},
        path.length());
  }

  public void testOnlyDelimitersReverse() throws Exception {
    String path = "//";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path) );
    assertTokenStreamContents(t,
        new String[]{"//", "/"},
        new int[]{0, 1},
        new int[]{2, 2},
        new int[]{1, 0},
        path.length());
  }

  public void testEndOfDelimiterReverseSkip() throws Exception {
    String path = "/a/b/c/";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path), 1 );
    assertTokenStreamContents(t,
        new String[]{"/a/b/", "a/b/", "b/"},
        new int[]{0, 1, 3},
        new int[]{5, 5, 5},
        new int[]{1, 0, 0},
        path.length());
  }

  public void testStartOfCharReverseSkip() throws Exception {
    String path = "a/b/c";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path), 1 );
    assertTokenStreamContents(t,
        new String[]{"a/b/", "b/"},
        new int[]{0, 2},
        new int[]{4, 4},
        new int[]{1, 0},
        path.length());
  }

  public void testStartOfCharEndOfDelimiterReverseSkip() throws Exception {
    String path = "a/b/c/";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path), 1 );
    assertTokenStreamContents(t,
        new String[]{"a/b/", "b/"},
        new int[]{0, 2},
        new int[]{4, 4},
        new int[]{1, 0},
        path.length());
  }

  public void testOnlyDelimiterReverseSkip() throws Exception {
    String path = "/";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path), 1 );
    assertTokenStreamContents(t,
        new String[]{},
        new int[]{},
        new int[]{},
        new int[]{},
        path.length());
  }

  public void testOnlyDelimitersReverseSkip() throws Exception {
    String path = "//";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path), 1 );
    assertTokenStreamContents(t,
        new String[]{"/"},
        new int[]{0},
        new int[]{1},
        new int[]{1},
        path.length());
  }

  public void testReverseSkip2() throws Exception {
    String path = "/a/b/c/";
    ReversePathHierarchyTokenizer t = new ReversePathHierarchyTokenizer( new StringReader(path), 2 );
    assertTokenStreamContents(t,
        new String[]{"/a/", "a/"},
        new int[]{0, 1},
        new int[]{3, 3},
        new int[]{1, 0},
        path.length());
  }
}