Package org.apache.accumulo.core.data

Examples of org.apache.accumulo.core.data.Key

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    mscanner.fetchColumnFamily(Constants.METADATA_CLONED_COLUMN_FAMILY);

    int dirCount = 0;

    for (Entry<Key,Value> entry : mscanner) {
      Key k = entry.getKey();
      Mutation m = new Mutation(k.getRow());
      m.putDelete(k.getColumnFamily(), k.getColumnQualifier());
      Constants.METADATA_DIRECTORY_COLUMN.put(m, new Value(FastFormat.toZeroPaddedString(dirCount++, 8, 16, "/c-".getBytes(Constants.UTF8))));
      bw.addMutation(m);
    }

    bw.close();
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public class RegExFilterTest extends TestCase {

  private static final Collection<ByteSequence> EMPTY_COL_FAMS = new ArrayList<ByteSequence>();

  private Key nkv(TreeMap<Key,Value> tm, String row, String cf, String cq, String val) {
    Key k = nk(row, cf, cq);
    tm.put(k, new Value(val.getBytes()));
    return k;
  }
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    tm.put(k, new Value(val.getBytes()));
    return k;
  }

  private Key nk(String row, String cf, String cq) {
    return new Key(new Text(row), new Text(cf), new Text(cq));
  }
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  }

  public void test1() throws IOException {
    TreeMap<Key,Value> tm = new TreeMap<Key,Value>();

    Key k1 = nkv(tm, "boo1", "yup", "20080201", "dog");
    Key k2 = nkv(tm, "boo1", "yap", "20080202", "cat");
    Key k3 = nkv(tm, "boo2", "yip", "20080203", "hamster");

    RegExFilter rei = new RegExFilter();
    rei.describeOptions();

    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();

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  }
 
  private void scanRange(String table, IntKey ik1, boolean inclusive1, IntKey ik2, boolean inclusive2) throws Exception {
    Scanner scanner = getConnector().createScanner(table, Constants.NO_AUTHS);
   
    Key key1 = null;
    Key key2 = null;
   
    IntKey expectedIntKey;
    IntKey expectedEndIntKey;
   
    if (ik1 != null) {
      key1 = ik1.createKey();
      expectedIntKey = ik1;
     
      if (!inclusive1) {
        expectedIntKey = expectedIntKey.increment();
      }
    } else {
      expectedIntKey = new IntKey(0, 0, 0, 0);
    }
   
    if (ik2 != null) {
      key2 = ik2.createKey();
      expectedEndIntKey = ik2;
     
      if (inclusive2) {
        expectedEndIntKey = expectedEndIntKey.increment();
      }
    } else {
      expectedEndIntKey = new IntKey(ROW_LIMIT, 0, 0, 0);
    }
   
    Range range = new Range(key1, inclusive1, key2, inclusive2);
   
    scanner.setRange(range);
   
    for (Entry<Key,Value> entry : scanner) {
     
      Key expectedKey = expectedIntKey.createKey();
      if (!expectedKey.equals(entry.getKey())) {
        throw new Exception(" " + expectedKey + " != " + entry.getKey());
      }
     
      expectedIntKey = expectedIntKey.increment();
    }
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    Key createKey() {
      Text trow = createRow(row);
      Text tcf = createCF(cf);
      Text tcq = createCQ(cq);
     
      return new Key(trow, tcf, tcq, ts);
    }
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      final Text row = new Text(m.getRow());
      for (ColumnUpdate update : m.getUpdates()) {
        cf.set(update.getColumnFamily());
        cq.set(update.getColumnQualifier());

        Key k = new Key(row, cf, cq);
        Value v = new Value(update.getValue());

        keyValues.put(k, v);
      }
    }
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    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());

    Key firstKeyFromCopy = copy.getTopKey();
    Value firstValueFromCopy = copy.getTopValue();

    // Verify that we got the same first k-v pair we did earlier
    assertEquals(firstKey, firstKeyFromCopy);
    assertEquals(firstValue, firstValueFromCopy);

    filter.next();
    Key finalKeyRead = filter.getTopKey();

    // Make sure we got a Key that was greater than the last Key we read from the original RowFilter
    assertTrue("Expected next key read to be greater than the previous after deepCopy", lastKeyRead.compareTo(finalKeyRead) < 0);
  }
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        for (int j = 0; j < opts.cols; j++) {
          Text colf = new Text(opts.columnFamily);
          Text colq = new Text(FastFormat.toZeroPaddedString(j, 7, 10, COL_PREFIX));
         
          if (writer != null) {
            Key key = new Key(row, colf, colq, labBA);
            if (opts.timestamp >= 0) {
              key.setTimestamp(opts.timestamp);
            } else {
              key.setTimestamp(startTime);
            }
           
            if (opts.delete) {
              key.setDeleted(true);
            } else {
              key.setDeleted(false);
            }
           
            bytesWritten += key.getSize();
           
            if (opts.delete) {
              writer.append(key, new Value(new byte[0]));
            } else {
              byte value[];
              if (opts.random != null) {
                value = genRandomValue(random, randomValue, opts.random.intValue(), rowid + opts.startRow, j);
              } else {
                value = bytevals[j % bytevals.length];
              }
             
              Value v = new Value(value);
              writer.append(key, v);
              bytesWritten += v.getSize();
            }
           
          } else {
            Key key = new Key(row, colf, colq, labBA);
            bytesWritten += key.getSize();
           
            if (opts.delete) {
              if (opts.timestamp >= 0)
                m.putDelete(colf, colq, opts.columnVisibility, opts.timestamp);
              else
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    @Override
    public boolean acceptRow(SortedKeyValueIterator<Key,Value> rowIterator) throws IOException {
      int sum = 0;
      int sum2 = 0;

      Key firstKey = null;

      if (rowIterator.hasTop()) {
        firstKey = new Key(rowIterator.getTopKey());
      }

      while (rowIterator.hasTop()) {
        sum += Integer.parseInt(rowIterator.getTopValue().toString());
        rowIterator.next();
      }

      // ensure that seeks are confined to the row
      rowIterator.seek(new Range(), new HashSet<ByteSequence>(), false);
      while (rowIterator.hasTop()) {
        sum2 += Integer.parseInt(rowIterator.getTopValue().toString());
        rowIterator.next();
      }

      rowIterator.seek(new Range(firstKey.getRow(), false, null, true), new HashSet<ByteSequence>(), false);
      while (rowIterator.hasTop()) {
        sum2 += Integer.parseInt(rowIterator.getTopValue().toString());
        rowIterator.next();
      }
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Related Classes of org.apache.accumulo.core.data.Key

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  • org.apache.accumulo.core.client.impl.TabletLocatorImplTest
  • org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator
  • org.apache.accumulo.core.client.impl.ThriftScanner
  • org.apache.accumulo.core.client.mapred.RangeInputSplitTest
  • org.apache.accumulo.core.client.mapreduce.AccumuloInputFormatTest$TestMapper
  • org.apache.accumulo.core.client.mapreduce.InputFormatBase
  • org.apache.accumulo.core.client.mapreduce.RangeInputSplitTest
  • org.apache.accumulo.core.client.mock.MockConnectorTest
  • org.apache.accumulo.core.client.mock.MockTable
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