content: /**
   * 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.
   */
  
  package org.apache.asterix.fuzzyjoin.tests;
  
  import java.io.BufferedWriter;
  import java.io.FileWriter;
  import java.util.ArrayList;
  
  import org.apache.asterix.fuzzyjoin.FuzzyJoinMemory;
  import org.apache.asterix.fuzzyjoin.ResultSelfJoin;
  import org.apache.asterix.fuzzyjoin.tests.dataset.AbstractDataset;
  import org.apache.asterix.fuzzyjoin.tests.dataset.AbstractDataset.Directory;
  import org.apache.asterix.fuzzyjoin.tests.dataset.DBLPSmallDataset;
  import org.junit.Test;
  
  public class FuzzyJoinTest {
  
      private static final AbstractDataset dataset = new DBLPSmallDataset();
      private static final String base = "data/";
  
      @Test
      public void test() throws Exception {
  
          ArrayList<int[]> records = new ArrayList<int[]>();
          ArrayList<Integer> rids = new ArrayList<Integer>();
          ArrayList<ResultSelfJoin> results = new ArrayList<ResultSelfJoin>();
  
          dataset.createDirecotries(new String[] { base });
  
          FuzzyJoinMemory fj = new FuzzyJoinMemory(dataset.getThreshold());
  
          FuzzyJoinMemory.readRecords(base + dataset.getPathPart0(Directory.SSJOININ), records, rids);
  
          for (int[] record : records) {
              results.addAll(fj.selfJoinAndAddRecord(record));
          }
  
          BufferedWriter out = new BufferedWriter(new FileWriter(base + dataset.getPathPart0(Directory.SSJOINOUT)));
          for (ResultSelfJoin result : results) {
              out.write(
                      String.format("%d %d %.3f\n", rids.get(result.indexX), rids.get(result.indexY), result.similarity));
          }
          out.close();
  
          FuzzyJoinTestUtil.verifyDirectory(base + dataset.getPathPart0(Directory.SSJOINOUT),
                  base + dataset.getPathExpected(Directory.SSJOINOUT));
      }
  }
  