Examples of org.apache.lucene.search.suggest.TermFreq

Package org.apache.lucene.search.suggest

Examples of org.apache.lucene.search.suggest.TermFreq

org.apache.lucene.search.suggest.TermFreq
pache.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.

  // TODO: more tests
  /**
   * basic "standardanalyzer" test with stopword removal
   */
  public void testStandard() throws Exception {
    TermFreq keys[] = new TermFreq[] {
        new TermFreq("the ghost of christmas past", 50),
    };
    
    Analyzer standard = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, true, MockTokenFilter.ENGLISH_STOPSET);
    AnalyzingSuggester suggester = new AnalyzingSuggester(standard);
    suggester.setPreservePositionIncrements(false);

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    assertTrue(result.isEmpty());
  }


  public void testNoSeps() throws Exception {
    TermFreq[] keys = new TermFreq[] {
      new TermFreq("ab cd", 0),
      new TermFreq("abcd", 1),
    };


    int options = 0;


    Analyzer a = new MockAnalyzer(random());

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          }
        };
      }
    };


    TermFreq keys[] = new TermFreq[] {
        new TermFreq("wifi network is slow", 50),
        new TermFreq("wi fi network is fast", 10),
    };
    //AnalyzingSuggester suggester = new AnalyzingSuggester(analyzer, AnalyzingSuggester.EXACT_FIRST, 256, -1);
    AnalyzingSuggester suggester = new AnalyzingSuggester(analyzer);
    suggester.build(new TermFreqArrayIterator(keys));
    List<LookupResult> results = suggester.lookup("wifi network", false, 10);

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          }
        };
      }
    };


    TermFreq keys[] = new TermFreq[] {
        new TermFreq("ab xc", 50),
        new TermFreq("ba xd", 50),
    };
    AnalyzingSuggester suggester = new AnalyzingSuggester(analyzer);
    suggester.build(new TermFreqArrayIterator(keys));
    List<LookupResult> results = suggester.lookup("ab x", false, 1);
    assertTrue(results.size() == 1);

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  public void testExactFirst() throws Exception {


    Analyzer a = getUnusualAnalyzer();
    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, AnalyzingSuggester.EXACT_FIRST | AnalyzingSuggester.PRESERVE_SEP, 256, -1);
    suggester.build(new TermFreqArrayIterator(new TermFreq[] {
          new TermFreq("x y", 1),
          new TermFreq("x y z", 3),
          new TermFreq("x", 2),
          new TermFreq("z z z", 20),
        }));


    //System.out.println("ALL: " + suggester.lookup("x y", false, 6));


    for(int topN=1;topN<6;topN++) {

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    Analyzer a = getUnusualAnalyzer();
    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, AnalyzingSuggester.PRESERVE_SEP, 256, -1);


    suggester.build(new TermFreqArrayIterator(new TermFreq[] {
          new TermFreq("x y", 1),
          new TermFreq("x y z", 3),
          new TermFreq("x", 2),
          new TermFreq("z z z", 20),
        }));


    for(int topN=1;topN<6;topN++) {
      List<LookupResult> results = suggester.lookup("p", false, topN);

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        byte[] bytes = new byte[random().nextInt(10)];
        random().nextBytes(bytes);
        payload = new BytesRef(bytes);
        payloadKeys[i] = new TermFreqPayload(key, weight, payload);
      } else {
        keys[i] = new TermFreq(key, weight);
        payload = null;
      }


      slowCompletor.add(new TermFreq2(key, analyzedKey, weight, payload));
    }

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  }


  public void testMaxSurfaceFormsPerAnalyzedForm() throws Exception {
    Analyzer a = new MockAnalyzer(random());
    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, 0, 2, -1);
    suggester.build(new TermFreqArrayIterator(shuffle(new TermFreq("a", 40),
        new TermFreq("a ", 50), new TermFreq(" a", 60))));


    List<LookupResult> results = suggester.lookup("a", false, 5);
    assertEquals(2, results.size());
    assertEquals(" a", results.get(0).key);
    assertEquals(60, results.get(0).value);

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  public void testQueueExhaustion() throws Exception {
    Analyzer a = new MockAnalyzer(random());
    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, AnalyzingSuggester.EXACT_FIRST, 256, -1);


    suggester.build(new TermFreqArrayIterator(new TermFreq[] {
          new TermFreq("a", 2),
          new TermFreq("a b c", 3),
          new TermFreq("a c a", 1),
          new TermFreq("a c b", 1),
        }));


    suggester.lookup("a", false, 4);
  }

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    Analyzer a = new MockAnalyzer(random());


    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, AnalyzingSuggester.EXACT_FIRST, 256, -1);


    suggester.build(new TermFreqArrayIterator(new TermFreq[] {
          new TermFreq("a", 5),
          new TermFreq("a b", 3),
          new TermFreq("a c", 4),
        }));


    List<LookupResult> results = suggester.lookup("a", false, 3);
    assertEquals(3, results.size());
    assertEquals("a", results.get(0).key);

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Related Classes of org.apache.lucene.search.suggest.TermFreq

org.apache.lucene.search.suggest.analyzing.AnalyzingSuggesterTest

org.apache.lucene.search.suggest.analyzing.FuzzySuggesterTest

org.apache.lucene.search.suggest.fst.FSTLookupTest

org.apache.lucene.search.suggest.fst.WFSTCompletionTest

org.apache.lucene.util.BytesRef

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