test/src/test/java/org/apache/accumulo/test/iterator/CfCqSliceFilterTest.java

/*
 * 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.accumulo.test.iterator;

import static org.junit.Assert.assertNotNull;

import java.util.HashMap;
import java.util.List;
import java.util.Map.Entry;
import java.util.TreeMap;

import org.apache.accumulo.core.data.Key;
import org.apache.accumulo.core.data.Range;
import org.apache.accumulo.core.data.Value;
import org.apache.accumulo.core.iterators.user.CfCqSliceFilter;
import org.apache.accumulo.core.iterators.user.CfCqSliceOpts;
import org.apache.accumulo.iteratortest.IteratorTestCaseFinder;
import org.apache.accumulo.iteratortest.IteratorTestInput;
import org.apache.accumulo.iteratortest.IteratorTestOutput;
import org.apache.accumulo.iteratortest.junit4.BaseJUnit4IteratorTest;
import org.apache.accumulo.iteratortest.testcases.IteratorTestCase;
import org.junit.runners.Parameterized.Parameters;

import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;

/**
 * Iterator test harness tests for CfCqSliceFilter
 */
public class CfCqSliceFilterTest extends BaseJUnit4IteratorTest {

  // Default is inclusive on min and max
  public static final String MIN_CF = "f";
  public static final String MAX_CF = "m";
  public static final String MIN_CQ = "q";
  public static final String MAX_CQ = "y";

  @Parameters
  public static Object[][] parameters() {
    IteratorTestInput input = getIteratorInput();
    IteratorTestOutput output = getIteratorOutput();
    List<IteratorTestCase> tests = IteratorTestCaseFinder.findAllTestCases();
    return BaseJUnit4IteratorTest.createParameters(input, output, tests);
  }

  private static final TreeMap<Key,Value> INPUT_DATA = createInputData();
  private static final TreeMap<Key,Value> OUTPUT_DATA = createOutputData();

  private static TreeMap<Key,Value> createInputData() {
    TreeMap<Key,Value> data = new TreeMap<>();
    Value value = new Value(new byte[] {'a'});

    // Dropped
    data.put(new Key("1", "a", "g"), value);
    data.put(new Key("1", "f", "q"), value);
    data.put(new Key("1", "f", "t"), value);
    data.put(new Key("1", "g", "q"), value);
    data.put(new Key("1", "g", "y"), value);
    // Dropped
    data.put(new Key("1", "g", "z"), value);

    // Dropped
    data.put(new Key("2", "m", "a"), value);

    data.put(new Key("3", "j", "u"), value);

    data.put(new Key("4", "h", "w"), value);
    data.put(new Key("4", "h", "x"), value);
    data.put(new Key("4", "h", "y"), value);
    data.put(new Key("4", "l", "r"), value);
    // Dropped
    data.put(new Key("4", "l", "z"), value);
    data.put(new Key("4", "m", "y"), value);

    return data;
  }

  private static TreeMap<Key,Value> createOutputData() {
    TreeMap<Key,Value> data = new TreeMap<>();

    Iterable<Entry<Key,Value>> filtered = Iterables.filter(INPUT_DATA.entrySet(), new Predicate<Entry<Key,Value>>() {

      @Override
      public boolean apply(Entry<Key,Value> entry) {
        assertNotNull(entry);
        String cf = entry.getKey().getColumnFamily().toString();
        String cq = entry.getKey().getColumnQualifier().toString();
        return MIN_CF.compareTo(cf) <= 0 && MAX_CF.compareTo(cf) >= 0 && MIN_CQ.compareTo(cq) <= 0 && MAX_CQ.compareTo(cq) >= 0;
      }

    });

    for (Entry<Key,Value> entry : filtered) {
      data.put(entry.getKey(), entry.getValue());
    }

    return data;
  }

  private static IteratorTestInput getIteratorInput() {
    HashMap<String,String> options = new HashMap<>();
    options.put(CfCqSliceOpts.OPT_MIN_CF, MIN_CF);
    options.put(CfCqSliceOpts.OPT_MAX_CF, MAX_CF);
    options.put(CfCqSliceOpts.OPT_MIN_CQ, MIN_CQ);
    options.put(CfCqSliceOpts.OPT_MAX_CQ, MAX_CQ);

    return new IteratorTestInput(CfCqSliceFilter.class, options, new Range(), INPUT_DATA);
  }

  private static IteratorTestOutput getIteratorOutput() {
    return new IteratorTestOutput(OUTPUT_DATA);
  }

  public CfCqSliceFilterTest(IteratorTestInput input, IteratorTestOutput expectedOutput, IteratorTestCase testCase) {
    super(input, expectedOutput, testCase);
  }

}