Package org.apache.accumulo.core.client

Examples of org.apache.accumulo.core.client.IteratorSetting$Column

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    nkv(tm1, 2, 2, 1, 1, false, 2l, encoder);
    nkv(tm1, 2, 2, 1, 2, false, 3l, encoder);
   
    Combiner ai = new SummingCombiner();
   
    IteratorSetting is = new IteratorSetting(1, SummingCombiner.class);
    LongCombiner.setEncodingType(is, FixedLenEncoder.class.getName());
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 3), ai.getTopKey());
    assertEquals("9", encoder.decode(ai.getTopValue().get()).toString());
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    nkv(tm1, 2, 2, 1, 1, false, 2l, encoder);
    nkv(tm1, 2, 2, 1, 2, false, 3l, encoder);
   
    Combiner ai = new SummingCombiner();
   
    IteratorSetting is = new IteratorSetting(1, SummingCombiner.class);
    LongCombiner.setEncodingType(is, FixedLenEncoder.class.getName());
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), null);
   
    SortedKeyValueIterator<Key,Value> ai2 = ai.deepCopy(null);
    SortedKeyValueIterator<Key,Value> ai3 = ai.deepCopy(null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
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    nkv(tm1, 2, 2, 1, 1, false, 2l, encoder);
    nkv(tm1, 2, 2, 1, 2, false, 3l, encoder);
   
    Combiner ai = new SummingCombiner();
   
    IteratorSetting is = new IteratorSetting(1, SummingCombiner.class);
    LongCombiner.setEncodingType(is, SummingCombiner.Type.STRING);
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(0, 0, 1, 1), ai.getTopKey());
    assertEquals("7", encoder.decode(ai.getTopValue().get()).toString());
   
    ai.next();
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 3), ai.getTopKey());
    assertEquals("9", encoder.decode(ai.getTopValue().get()).toString());
   
    ai.next();
   
    assertTrue(ai.hasTop());
    assertEquals(nk(2, 2, 1, 2), ai.getTopKey());
    assertEquals("3", encoder.decode(ai.getTopValue().get()).toString());
   
    ai.next();
   
    assertTrue(ai.hasTop());
    assertEquals(nk(2, 2, 1, 1), ai.getTopKey());
    assertEquals("2", encoder.decode(ai.getTopValue().get()).toString());
   
    ai.next();
   
    assertFalse(ai.hasTop());
   
    // seek test
    ai.seek(nr(0, 0, 1, 0), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 3), ai.getTopKey());
    assertEquals("9", encoder.decode(ai.getTopValue().get()).toString());
   
    ai.next();
   
    assertTrue(ai.hasTop());
    assertEquals(nk(2, 2, 1, 2), ai.getTopKey());
    assertEquals("3", encoder.decode(ai.getTopValue().get()).toString());
   
    // seek after key that aggregates
    ai.seek(nr(1, 1, 1, 2), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(2, 2, 1, 2), ai.getTopKey());
    assertEquals("3", encoder.decode(ai.getTopValue().get()).toString());
   
    // combine all columns
   
    is = new IteratorSetting(1, SummingCombiner.class);
    LongCombiner.setEncodingType(is, SummingCombiner.Type.STRING);
    Combiner.setCombineAllColumns(is, true);
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(0, 0, 1, 1), ai.getTopKey());
    assertEquals("7", encoder.decode(ai.getTopValue().get()).toString());
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    TreeMap<Key,Value> tm3 = new TreeMap<Key,Value>();
    nkv(tm3, 1, 1, 1, 1, false, 4l, encoder);
   
    Combiner ai = new SummingCombiner();
   
    IteratorSetting is = new IteratorSetting(1, SummingCombiner.class);
    LongCombiner.setEncodingType(is, StringEncoder.class);
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    List<SortedKeyValueIterator<Key,Value>> sources = new ArrayList<SortedKeyValueIterator<Key,Value>>(3);
    sources.add(new SortedMapIterator(tm1));
    sources.add(new SortedMapIterator(tm2));
    sources.add(new SortedMapIterator(tm3));
   
    MultiIterator mi = new MultiIterator(sources, true);
    ai.init(mi, is.getOptions(), null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 1), ai.getTopKey());
    assertEquals("9", encoder.decode(ai.getTopValue().get()).toString());
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    nkv(tm1, 1, 1, 1, 2, false, 3l, encoder);
    nkv(tm1, 1, 1, 1, 3, false, 4l, encoder);
   
    Combiner ai = new SummingCombiner();
   
    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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    nkv(tm1, 1, 1, 1, 3, false, 4l, encoder);
    nkv(tm1, 1, 1, 1, 4, false, 3l, encoder);
   
    Combiner ai = new SummingCombiner();
   
    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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    tm.put(new Key("r", "count", "b", 4), new Value("1".getBytes()));
    tm.put(new Key("r", "count", "b", 5), new Value("1".getBytes()));
    tm.put(new Key("r", "count", "c", 6), new Value("1".getBytes()));
    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);
   
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    nkv(tm1, 1, 1, 1, 2, false, 3l, encoder);
    nkv(tm1, 1, 1, 1, 3, false, 2l, encoder);
   
    Combiner ai = new MaxCombiner();
   
    IteratorSetting is = new IteratorSetting(1, SummingCombiner.class);
    LongCombiner.setEncodingType(is, SummingCombiner.Type.VARLEN);
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 3), ai.getTopKey());
    assertEquals("4", encoder.decode(ai.getTopValue().get()).toString());
   
    ai.next();
   
    assertFalse(ai.hasTop());
   
    ai = new MinCombiner();
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 3), ai.getTopKey());
    assertEquals("2", encoder.decode(ai.getTopValue().get()).toString());
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    nkv(tm1, 1, 1, 1, 2, false, nal(3l, 4l, 5l), encoder);
    nkv(tm1, 1, 1, 1, 3, false, nal(), encoder);
   
    Combiner ai = new SummingArrayCombiner();
   
    IteratorSetting is = new IteratorSetting(1, SummingArrayCombiner.class);
    SummingArrayCombiner.setEncodingType(is, type);
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 3), ai.getTopKey());
    assertBytesEqual(encoder.encode(nal(4l, 6l, 5l)), ai.getTopValue().get());
   
    ai.next();
   
    assertFalse(ai.hasTop());
   
    is.clearOptions();
    SummingArrayCombiner.setEncodingType(is, encoderClass);
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 3), ai.getTopKey());
    assertBytesEqual(encoder.encode(nal(4l, 6l, 5l)), ai.getTopValue().get());
   
    ai.next();
   
    assertFalse(ai.hasTop());
   
    is.clearOptions();
    SummingArrayCombiner.setEncodingType(is, encoderClass.getName());
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    ai.init(new SortedMapIterator(tm1), is.getOptions(), null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 3), ai.getTopKey());
    assertBytesEqual(encoder.encode(nal(4l, 6l, 5l)), ai.getTopValue().get());
   
    ai.next();
   
    assertFalse(ai.hasTop());
   
    is.clearOptions();
    SummingArrayCombiner.setEncodingType(is, SummingCombiner.VAR_LEN_ENCODER.getClass().getName());
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    try {
      ai.init(new SortedMapIterator(tm1), is.getOptions(), null);
      Assert.fail();
    } catch (IllegalArgumentException e) {}
   
    is.clearOptions();
    SummingArrayCombiner.setEncodingType(is, BadEncoder.class.getName());
    Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("cf001")));
   
    try {
      ai.init(new SortedMapIterator(tm1), is.getOptions(), null);
      Assert.fail();
    } catch (IllegalArgumentException e) {}
  }
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    protected void setupIterators(Scanner scanner, List<AccumuloIterator> iterators, List<AccumuloIteratorOption> options)
        throws AccumuloException {

      Map<String,IteratorSetting> scanIterators = new HashMap<String,IteratorSetting>();
      for (AccumuloIterator iterator : iterators) {
        scanIterators.put(iterator.getIteratorName(), new IteratorSetting(iterator.getPriority(), iterator.getIteratorName(), iterator.getIteratorClass()));
      }
      for (AccumuloIteratorOption option : options) {
        scanIterators.get(option.iteratorName).addOption(option.getKey(), option.getValue());
      }
      for (AccumuloIterator iterator : iterators) {
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