Examples with Cell org.apache.hadoop.hbase.Cell used on opensource projects

Example 51 with Cell

use of org.apache.hadoop.hbase.Cell in project hbase by apache.

the class SampleRegionWALObserver method preWALWrite.

@Override
public boolean preWALWrite(ObserverContext<? extends WALCoprocessorEnvironment> env, HRegionInfo info, WALKey logKey, WALEdit logEdit) throws IOException {
    boolean bypass = false;
    // check table name matches or not.
    if (!Bytes.equals(info.getTable().toBytes(), this.tableName)) {
        return bypass;
    }
    preWALWriteCalled = true;
    // here we're going to remove one keyvalue from the WALEdit, and add
    // another one to it.
    List<Cell> cells = logEdit.getCells();
    Cell deletedCell = null;
    for (Cell cell : cells) {
        // assume only one kv from the WALEdit matches.
        byte[] family = CellUtil.cloneFamily(cell);
        byte[] qulifier = CellUtil.cloneQualifier(cell);
        if (Arrays.equals(family, ignoredFamily) && Arrays.equals(qulifier, ignoredQualifier)) {
            LOG.debug("Found the KeyValue from WALEdit which should be ignored.");
            deletedCell = cell;
        }
        if (Arrays.equals(family, changedFamily) && Arrays.equals(qulifier, changedQualifier)) {
            LOG.debug("Found the KeyValue from WALEdit which should be changed.");
            cell.getValueArray()[cell.getValueOffset()] += 1;
        }
    }
    if (null != row) {
        cells.add(new KeyValue(row, addedFamily, addedQualifier));
    }
    if (deletedCell != null) {
        LOG.debug("About to delete a KeyValue from WALEdit.");
        cells.remove(deletedCell);
    }
    return bypass;
}

Example 52 with Cell

use of org.apache.hadoop.hbase.Cell in project hbase by apache.

the class SimpleRegionObserver method postGetOp.

@Override
public void postGetOp(final ObserverContext<RegionCoprocessorEnvironment> c, final Get get, final List<Cell> results) {
    RegionCoprocessorEnvironment e = c.getEnvironment();
    assertNotNull(e);
    assertNotNull(e.getRegion());
    assertNotNull(get);
    assertNotNull(results);
    if (e.getRegion().getTableDesc().getTableName().equals(TestRegionObserverInterface.TEST_TABLE)) {
        boolean foundA = false;
        boolean foundB = false;
        boolean foundC = false;
        for (Cell kv : results) {
            if (CellUtil.matchingFamily(kv, TestRegionObserverInterface.A)) {
                foundA = true;
            }
            if (CellUtil.matchingFamily(kv, TestRegionObserverInterface.B)) {
                foundB = true;
            }
            if (CellUtil.matchingFamily(kv, TestRegionObserverInterface.C)) {
                foundC = true;
            }
        }
        assertTrue(foundA);
        assertTrue(foundB);
        assertTrue(foundC);
    }
    ctPostGet.incrementAndGet();
}

Example 53 with Cell

use of org.apache.hadoop.hbase.Cell in project hbase by apache.

the class SimpleRegionObserver method postPut.

@Override
public void postPut(final ObserverContext<RegionCoprocessorEnvironment> c, final Put put, final WALEdit edit, final Durability durability) throws IOException {
    Map<byte[], List<Cell>> familyMap = put.getFamilyCellMap();
    RegionCoprocessorEnvironment e = c.getEnvironment();
    assertNotNull(e);
    assertNotNull(e.getRegion());
    assertNotNull(familyMap);
    List<Cell> cells = familyMap.get(TestRegionObserverInterface.A);
    if (e.getRegion().getTableDesc().getTableName().equals(TestRegionObserverInterface.TEST_TABLE)) {
        assertNotNull(cells);
        assertNotNull(cells.get(0));
        // KeyValue v1 expectation.  Cast for now until we go all Cell all the time. TODO
        Cell cell = cells.get(0);
        assertTrue(Bytes.equals(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength(), TestRegionObserverInterface.A, 0, TestRegionObserverInterface.A.length));
        cells = familyMap.get(TestRegionObserverInterface.B);
        assertNotNull(cells);
        assertNotNull(cells.get(0));
        // KeyValue v1 expectation.  Cast for now until we go all Cell all the time. TODO
        cell = cells.get(0);
        assertTrue(Bytes.equals(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength(), TestRegionObserverInterface.B, 0, TestRegionObserverInterface.B.length));
        cells = familyMap.get(TestRegionObserverInterface.C);
        assertNotNull(cells);
        assertNotNull(cells.get(0));
        // KeyValue v1 expectation.  Cast for now until we go all Cell all the time. TODO
        cell = cells.get(0);
        assertTrue(Bytes.equals(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength(), TestRegionObserverInterface.C, 0, TestRegionObserverInterface.C.length));
    }
    ctPostPut.incrementAndGet();
}

Example 54 with Cell

use of org.apache.hadoop.hbase.Cell in project hbase by apache.

the class SimpleRegionObserver method prePut.

@Override
public void prePut(final ObserverContext<RegionCoprocessorEnvironment> c, final Put put, final WALEdit edit, final Durability durability) throws IOException {
    Map<byte[], List<Cell>> familyMap = put.getFamilyCellMap();
    RegionCoprocessorEnvironment e = c.getEnvironment();
    assertNotNull(e);
    assertNotNull(e.getRegion());
    assertNotNull(familyMap);
    if (e.getRegion().getTableDesc().getTableName().equals(TestRegionObserverInterface.TEST_TABLE)) {
        List<Cell> cells = familyMap.get(TestRegionObserverInterface.A);
        assertNotNull(cells);
        assertNotNull(cells.get(0));
        Cell cell = cells.get(0);
        assertTrue(Bytes.equals(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength(), TestRegionObserverInterface.A, 0, TestRegionObserverInterface.A.length));
        cells = familyMap.get(TestRegionObserverInterface.B);
        assertNotNull(cells);
        assertNotNull(cells.get(0));
        cell = cells.get(0);
        assertTrue(Bytes.equals(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength(), TestRegionObserverInterface.B, 0, TestRegionObserverInterface.B.length));
        cells = familyMap.get(TestRegionObserverInterface.C);
        assertNotNull(cells);
        assertNotNull(cells.get(0));
        cell = cells.get(0);
        assertTrue(Bytes.equals(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength(), TestRegionObserverInterface.C, 0, TestRegionObserverInterface.C.length));
    }
    ctPrePut.incrementAndGet();
}

Example 55 with Cell

use of org.apache.hadoop.hbase.Cell in project hbase by apache.

the class CodecPerformance method main.

public static void main(String[] args) throws IOException {
    // How many Cells to encode/decode on each cycle.
    final int count = 100000;
    // How many times to do an operation; repeat gives hotspot chance to warm up.
    final int cycles = 30;
    Cell[] cells = getCells(count);
    int size = getRoughSize(cells);
    // Multiply by 2 to ensure we don't have to grow buffer
    int initialBufferSize = 2 * size;
    // Test KeyValue codec.
    doCodec(new KeyValueCodec(), cells, cycles, count, initialBufferSize);
    doCodec(new CellCodec(), cells, cycles, count, initialBufferSize);
    doCodec(new MessageCodec(), cells, cycles, count, initialBufferSize);
}