Package org.apache.accumulo.core.iterators

Examples of org.apache.accumulo.core.iterators.DefaultIteratorEnvironment

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    IteratorSetting is = new IteratorSetting(1, RegExFilter.class);
    RegExFilter.setRegexs(is, ".*2", null, null, null, false);

    assertTrue(rei.validateOptions(is.getOptions()));
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k3));
    rei.next();
    assertFalse(rei.hasTop());

    // -----------------------------------------------------
    // Test substring regex
    is.clearOptions();

    RegExFilter.setRegexs(is, null, null, null, "amst", false, true); // Should only match hamster

    rei.validateOptions(is.getOptions());
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k3));
    rei.next();
    assertFalse(rei.hasTop());

    // -----------------------------------------------------
    is.clearOptions();

    RegExFilter.setRegexs(is, null, "ya.*", null, null, false);
    assertTrue(rei.validateOptions(is.getOptions()));
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertFalse(rei.hasTop());

    // -----------------------------------------------------
    is.clearOptions();

    RegExFilter.setRegexs(is, null, null, ".*01", null, false);
    assertTrue(rei.validateOptions(is.getOptions()));
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k1));
    rei.next();
    assertFalse(rei.hasTop());

    // -----------------------------------------------------
    is.clearOptions();

    RegExFilter.setRegexs(is, null, null, null, ".*at", false);
    assertTrue(rei.validateOptions(is.getOptions()));
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertFalse(rei.hasTop());

    // -----------------------------------------------------
    is.clearOptions();

    RegExFilter.setRegexs(is, null, null, null, ".*ap", false);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertFalse(rei.hasTop());

    // -----------------------------------------------------
    is.clearOptions();

    RegExFilter.setRegexs(is, null, "ya.*", null, ".*at", false);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertFalse(rei.hasTop());

    // -----------------------------------------------------
    is.clearOptions();

    RegExFilter.setRegexs(is, null, "ya.*", null, ".*ap", false);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertFalse(rei.hasTop());

    // -----------------------------------------------------
    is.clearOptions();

    RegExFilter.setRegexs(is, "boo1", null, null, null, false);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k1));
    rei.next();
    assertFalse(rei.hasTop());

    // -----------------------------------------------------
    is.clearOptions();

    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k1));
    rei.next();
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k3));
    rei.next();
    assertFalse(rei.hasTop());

    // -----------------------------------------------------
    is.clearOptions();

    RegExFilter.setRegexs(is, "hamster", null, "hamster", "hamster", true);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k3));
    rei.next();
    assertFalse(rei.hasTop());

    // -----------------------------------------------------
    is.clearOptions();

    RegExFilter.setRegexs(is, null, "ya.*", "hamster", null, true);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertFalse(rei.hasTop());

    is.clearOptions();

    RegExFilter.setRegexs(is, null, "ya.*", "hamster", null, true);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
    rei.deepCopy(new DefaultIteratorEnvironment());

    // -----------------------------------------------------
    String multiByteText = new String("\u6d67" + "\u6F68" + "\u7067");
    String multiByteRegex = new String(".*" + "\u6F68" + ".*");

    Key k4 = new Key("boo4".getBytes(), "hoo".getBytes(), "20080203".getBytes(), "".getBytes(), 1l);
    Value inVal = new Value(multiByteText.getBytes("UTF-8"));
    tm.put(k4, inVal);

    is.clearOptions();

    RegExFilter.setRegexs(is, null, null, null, multiByteRegex, true);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);

    assertTrue(rei.hasTop());
    Value outValue = rei.getTopValue();
    String outVal = new String(outValue.get(), "UTF-8");
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  @Test
  public void deepCopyCopiesTheSource() throws Exception {
    SortedMapIterator source = new SortedMapIterator(createKeyValues());

    RowFilter filter = new RowZeroOrOneFilter();
    filter.init(source, Collections.<String,String> emptyMap(), new DefaultIteratorEnvironment());

    filter.seek(new Range(), Collections.<ByteSequence> emptySet(), false);

    // Save off the first key and value
    Key firstKey = filter.getTopKey();
    Value firstValue = filter.getTopValue();

    // Assert that the row is valid given our filter
    assertEquals("0", firstKey.getRow().toString());

    // Read some extra data, just making sure it's all valid
    Key lastKeyRead = null;
    for (int i = 0; i < 5; i++) {
      filter.next();
      lastKeyRead = filter.getTopKey();
      assertEquals("0", lastKeyRead.getRow().toString());
    }

    // Make a copy of the original RowFilter
    RowFilter copy = (RowFilter) filter.deepCopy(new DefaultIteratorEnvironment());

    // Because it's a copy, we should be able to safely seek this one without affecting the original
    copy.seek(new Range(), Collections.<ByteSequence> emptySet(), false);

    assertTrue("deepCopy'ed RowFilter did not have a top key", copy.hasTop());
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    }

    @Before
    public void setUp() throws Exception {
        columnSliceFilter.describeOptions();
        iteratorEnvironment = new DefaultIteratorEnvironment();
        is = new IteratorSetting(1, ColumnSliceFilter.class);
    }
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    IteratorSetting is = new IteratorSetting(1, SummingCombiner.class);
    LongCombiner.setEncodingType(is, VarLenEncoder.class.getName());
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), new DefaultIteratorEnvironment());
   
    // try seeking to the beginning of a key that aggregates
   
    ai.seek(nr(1, 1, 1, 3, false), EMPTY_COL_FAMS, false);
   
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    IteratorSetting is = new IteratorSetting(1, SummingCombiner.class);
    LongCombiner.setEncodingType(is, SummingCombiner.Type.FIXEDLEN);
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), new DefaultIteratorEnvironment());
   
    ai.seek(nr(1, 1, 1, 4, true), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 4), ai.getTopKey());
    assertEquals("7", encoder.decode(ai.getTopValue().get()).toString());
   
    ai.next();
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 2, true), ai.getTopKey());
    assertEquals("0", encoder.decode(ai.getTopValue().get()).toString());
   
    ai.next();
    assertFalse(ai.hasTop());
   
    tm1 = new TreeMap<Key,Value>();
    nkv(tm1, 1, 1, 1, 2, true, 0l, encoder);
    ai = new SummingCombiner();
    ai.init(new SortedMapIterator(tm1), is.getOptions(), new DefaultIteratorEnvironment());
   
    ai.seek(nr(1, 1, 1, 4, true), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 2, true), ai.getTopKey());
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    SortedMapIterator smi = new SortedMapIterator(tm);
    Combiner iter = new SummingCombiner();
    IteratorSetting s = new IteratorSetting(10, "s", SummingCombiner.class);
    SummingCombiner.setColumns(s, Collections.singletonList(new IteratorSetting.Column("count")));
    SummingCombiner.setEncodingType(s, LongCombiner.StringEncoder.class);
    iter.init(smi, s.getOptions(), new DefaultIteratorEnvironment());
    Combiner iter2 = new SummingCombiner();
    IteratorSetting s2 = new IteratorSetting(10, "s2", SummingCombiner.class);
    SummingCombiner.setColumns(s2, Collections.singletonList(new IteratorSetting.Column("count","a")));
    SummingCombiner.setEncodingType(s2, LongCombiner.StringEncoder.class);
    iter2.init(iter, s.getOptions(), new DefaultIteratorEnvironment());
    iter2.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(iter2.hasTop());
    assertEquals("2", iter2.getTopValue().toString());
    iter2.next();
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  @Test
  public void deepCopyCopiesTheSource() throws Exception {
    SortedMapIterator source = new SortedMapIterator(createKeyValues());

    RowFilter filter = new RowZeroOrOneFilter();
    filter.init(source, Collections.<String,String> emptyMap(), new DefaultIteratorEnvironment());

    filter.seek(new Range(), Collections.<ByteSequence> emptySet(), false);

    // Save off the first key and value
    Key firstKey = filter.getTopKey();
    Value firstValue = filter.getTopValue();

    // Assert that the row is valid given our filter
    assertEquals("0", firstKey.getRow().toString());

    // Read some extra data, just making sure it's all valid
    Key lastKeyRead = null;
    for (int i = 0; i < 5; i++) {
      filter.next();
      lastKeyRead = filter.getTopKey();
      assertEquals("0", lastKeyRead.getRow().toString());
    }

    // Make a copy of the original RowFilter
    RowFilter copy = (RowFilter) filter.deepCopy(new DefaultIteratorEnvironment());

    // Because it's a copy, we should be able to safely seek this one without affecting the original
    copy.seek(new Range(), Collections.<ByteSequence> emptySet(), false);

    assertTrue("deepCopy'ed RowFilter did not have a top key", copy.hasTop());
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    IteratorSetting is = new IteratorSetting(1, SummingCombiner.class);
    LongCombiner.setEncodingType(is, VarLenEncoder.class.getName());
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), new DefaultIteratorEnvironment());
   
    // try seeking to the beginning of a key that aggregates
   
    ai.seek(nr(1, 1, 1, 3, false), EMPTY_COL_FAMS, false);
   
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    IteratorSetting is = new IteratorSetting(1, SummingCombiner.class);
    LongCombiner.setEncodingType(is, SummingCombiner.Type.FIXEDLEN);
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), new DefaultIteratorEnvironment());
   
    ai.seek(nr(1, 1, 1, 4, true), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 4), ai.getTopKey());
    assertEquals("7", encoder.decode(ai.getTopValue().get()).toString());
   
    ai.next();
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 2, true), ai.getTopKey());
    assertEquals("0", encoder.decode(ai.getTopValue().get()).toString());
   
    ai.next();
    assertFalse(ai.hasTop());
   
    tm1 = new TreeMap<Key,Value>();
    nkv(tm1, 1, 1, 1, 2, true, 0l, encoder);
    ai = new SummingCombiner();
    ai.init(new SortedMapIterator(tm1), is.getOptions(), new DefaultIteratorEnvironment());
   
    ai.seek(nr(1, 1, 1, 4, true), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 2, true), ai.getTopKey());
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    IteratorSetting is = new IteratorSetting(1, RegExFilter.class);
    RegExFilter.setRegexs(is, ".*2", null, null, null, false);
   
    rei.validateOptions(is.getOptions());
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k3));
    rei.next();
    assertFalse(rei.hasTop());
   
    // -----------------------------------------------------
    is.clearOptions();
   
    RegExFilter.setRegexs(is, null, "ya.*", null, null, false);
    rei.validateOptions(is.getOptions());
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertFalse(rei.hasTop());
   
    // -----------------------------------------------------
    is.clearOptions();
   
    RegExFilter.setRegexs(is, null, null, ".*01", null, false);
    rei.validateOptions(is.getOptions());
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k1));
    rei.next();
    assertFalse(rei.hasTop());
   
    // -----------------------------------------------------
    is.clearOptions();
   
    RegExFilter.setRegexs(is, null, null, null, ".*at", false);
    rei.validateOptions(is.getOptions());
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertFalse(rei.hasTop());
   
    // -----------------------------------------------------
    is.clearOptions();
   
    RegExFilter.setRegexs(is, null, null, null, ".*ap", false);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertFalse(rei.hasTop());
   
    // -----------------------------------------------------
    is.clearOptions();
   
    RegExFilter.setRegexs(is, null, "ya.*", null, ".*at", false);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertFalse(rei.hasTop());
   
    // -----------------------------------------------------
    is.clearOptions();
   
    RegExFilter.setRegexs(is, null, "ya.*", null, ".*ap", false);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertFalse(rei.hasTop());
   
    // -----------------------------------------------------
    is.clearOptions();
   
    RegExFilter.setRegexs(is, "boo1", null, null, null, false);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k1));
    rei.next();
    assertFalse(rei.hasTop());
   
    // -----------------------------------------------------
    is.clearOptions();
   
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k1));
    rei.next();
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k3));
    rei.next();
    assertFalse(rei.hasTop());
   
    // -----------------------------------------------------
    is.clearOptions();
   
    RegExFilter.setRegexs(is, "hamster", null, "hamster", "hamster", true);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k3));
    rei.next();
    assertFalse(rei.hasTop());
   
    // -----------------------------------------------------
    is.clearOptions();
   
    RegExFilter.setRegexs(is, null, "ya.*", "hamster", null, true);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(rei.hasTop());
    assertTrue(rei.getTopKey().equals(k2));
    rei.next();
    assertFalse(rei.hasTop());
   
    is.clearOptions();
   
    RegExFilter.setRegexs(is, null, "ya.*", "hamster", null, true);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
    rei.deepCopy(new DefaultIteratorEnvironment());
   
    // -----------------------------------------------------
    String multiByteText = new String("\u6d67" + "\u6F68" + "\u7067");
    String multiByteRegex = new String(".*" + "\u6F68" + ".*");
   
    Key k4 = new Key("boo4".getBytes(), "hoo".getBytes(), "20080203".getBytes(), "".getBytes(), 1l);
    Value inVal = new Value(multiByteText.getBytes("UTF-8"));
    tm.put(k4, inVal);
   
    is.clearOptions();
   
    RegExFilter.setRegexs(is, null, null, null, multiByteRegex, true);
    rei.init(new SortedMapIterator(tm), is.getOptions(), new DefaultIteratorEnvironment());
    rei.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(rei.hasTop());
    Value outValue = rei.getTopValue();
    String outVal = new String(outValue.get(), "UTF-8");
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Related Classes of org.apache.accumulo.core.iterators.DefaultIteratorEnvironment

  • org.apache.accumulo.core.iterators.AggregatingIteratorTest
  • org.apache.accumulo.core.iterators.IterUtilTest
  • org.apache.accumulo.core.iterators.RegExIteratorTest
  • org.apache.accumulo.core.iterators.system.MapFileIterator
  • org.apache.accumulo.core.iterators.user.ColumnSliceFilterTest
  • org.apache.accumulo.core.iterators.user.CombinerTest
  • org.apache.accumulo.core.iterators.user.FilterTest
  • org.apache.accumulo.core.iterators.user.RegExFilterTest
  • org.apache.accumulo.core.iterators.user.RowFilterTest
  • org.apache.hadoop.conf.Configuration
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