Java Increment類代碼示例

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
@Test
public void testIncrWithReadOnlyTable() throws Exception {
  byte[] TABLE = Bytes.toBytes("readOnlyTable");
  this.region = initHRegion(TABLE, getName(), CONF, true, Bytes.toBytes("somefamily"));
  boolean exceptionCaught = false;
  Increment inc = new Increment(Bytes.toBytes("somerow"));
  inc.setDurability(Durability.SKIP_WAL);
  inc.addColumn(Bytes.toBytes("somefamily"), Bytes.toBytes("somequalifier"), 1L);
  try {
    region.increment(inc);
  } catch (IOException e) {
    exceptionCaught = true;
  } finally {
    HRegion.closeHRegion(this.region);
    this.region = null;
  }
  assertTrue(exceptionCaught == true);
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
/**
 * Builds a single {@link Increment} object for a row, with one-many cell
 * increments in that row
 *
 * @param rowKey The rowKey of the row to be updated
 * @param cells  A list of objects containing the column qualifier and cell
 *               increment value
 * @return The completed {@link Increment} object
 */
private Increment createIncrementOperation(final RowKey rowKey, final List<CountCellIncrementHolder> cells) {
    LOGGER.trace(() -> String.format("createIncrementOperation called for rowKey: %s with cell count %s",
            rowKey.toString(),
            cells.size()));

    final Increment increment = new Increment(rowKey.asByteArray());

    // TODO HBase 2.0 has Increment.setReturnResults to allow you to prevent
    // the return of the new
    // value to improve performance. In our case we don't care about the new
    // value so when we
    // upgrade to HBase 2.0 we need to add this line in.
    // increment.setReturnResults(false);

    //if we have multiple CCIHs for the same rowKey/colQual then hbase seems to only process one of them
    //Due to the way the data is passed through to this method we should not get multiple increments for the
    //same rowKey/colQual so we will not check for it due to the cost of doing that.
    for (final CountCellIncrementHolder cell : cells) {
        increment.addColumn(EventStoreColumnFamily.COUNTS.asByteArray(), cell.getColumnQualifier().getBytes(),
                cell.getCellIncrementValue());
    }
    return increment;
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
public static Increment incrementFromThrift(TIncrement in) throws IOException {
  Increment out = new Increment(in.getRow());
  for (TColumnIncrement column : in.getColumns()) {
    out.addColumn(column.getFamily(), column.getQualifier(), column.getAmount());
  }

  if (in.isSetAttributes()) {
    addAttributes(out,in.getAttributes());
  }

  if (in.isSetDurability()) {
    out.setDurability(durabilityFromThrift(in.getDurability()));
  }
  
  if(in.getCellVisibility() != null) {
    out.setCellVisibility(new CellVisibility(in.getCellVisibility().getExpression()));
  }

  return out;
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
@Override
public void increment(TIncrement tincrement) throws IOError, TException {

  if (tincrement.getRow().length == 0 || tincrement.getTable().length == 0) {
    throw new TException("Must supply a table and a row key; can't increment");
  }

  if (conf.getBoolean(COALESCE_INC_KEY, false)) {
    this.coalescer.queueIncrement(tincrement);
    return;
  }

  Table table = null;
  try {
    table = getTable(tincrement.getTable());
    Increment inc = ThriftUtilities.incrementFromThrift(tincrement);
    table.increment(inc);
  } catch (IOException e) {
    LOG.warn(e.getMessage(), e);
    throw new IOError(Throwables.getStackTraceAsString(e));
  } finally{
    closeTable(table);
  }
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
@Override
public Result preIncrementAfterRowLock(final ObserverContext<RegionCoprocessorEnvironment> c,
    final Increment increment) throws IOException {
  if (increment.getAttribute(CHECK_COVERING_PERM) != null) {
    // We had failure with table, cf and q perm checks and now giving a chance for cell
    // perm check
    TableName table = c.getEnvironment().getRegion().getRegionInfo().getTable();
    AuthResult authResult = null;
    if (checkCoveringPermission(OpType.INCREMENT, c.getEnvironment(), increment.getRow(),
        increment.getFamilyCellMap(), increment.getTimeRange().getMax(), Action.WRITE)) {
      authResult = AuthResult.allow(OpType.INCREMENT.toString(), "Covering cell set",
          getActiveUser(), Action.WRITE, table, increment.getFamilyCellMap());
    } else {
      authResult = AuthResult.deny(OpType.INCREMENT.toString(), "Covering cell set",
          getActiveUser(), Action.WRITE, table, increment.getFamilyCellMap());
    }
    logResult(authResult);
    if (authorizationEnabled && !authResult.isAllowed()) {
      throw new AccessDeniedException("Insufficient permissions " +
        authResult.toContextString());
    }
  }
  return null;
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
private void verifyUserDeniedForIncrementMultipleVersions(final User user, final byte[] row,
    final byte[] q1) throws IOException, InterruptedException {
  user.runAs(new PrivilegedExceptionAction<Void>() {
    @Override
    public Void run() throws Exception {
      try (Connection connection = ConnectionFactory.createConnection(conf)) {
        try (Table t = connection.getTable(TEST_TABLE.getTableName())) {
          Increment inc = new Increment(row);
          inc.setTimeRange(0, 127);
          inc.addColumn(TEST_FAMILY1, q1, 2L);
          t.increment(inc);
          fail(user.getShortName() + " cannot do the increment.");
        } catch (Exception e) {

        }
      }
      return null;
    }
  });
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
@Test (timeout=300000)
public void testIncrementHook() throws IOException {
  TableName tableName = TableName.valueOf(TEST_TABLE.getNameAsString() + ".testIncrementHook");
  Table table = util.createTable(tableName, new byte[][] {A, B, C});
  try {
    Increment inc = new Increment(Bytes.toBytes(0));
    inc.addColumn(A, A, 1);

    verifyMethodResult(SimpleRegionObserver.class,
        new String[] {"hadPreIncrement", "hadPostIncrement", "hadPreIncrementAfterRowLock"},
        tableName,
        new Boolean[] {false, false, false}
        );

    table.increment(inc);

    verifyMethodResult(SimpleRegionObserver.class,
        new String[] {"hadPreIncrement", "hadPostIncrement", "hadPreIncrementAfterRowLock"},
        tableName,
        new Boolean[] {true, true, true}
        );
  } finally {
    util.deleteTable(tableName);
    table.close();
  }
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
@Test
public void testIncrementWithReturnResultsSetToFalse() throws Exception {
  byte[] row1 = Bytes.toBytes("row1");
  byte[] col1 = Bytes.toBytes("col1");

  // Setting up region
  final WALFactory wals = new WALFactory(CONF, null, "testIncrementWithReturnResultsSetToFalse");
  byte[] tableName = Bytes.toBytes("testIncrementWithReturnResultsSetToFalse");
  final WAL wal = wals.getWAL(tableName);
  HRegion region = createHRegion(tableName, "increment", wal, Durability.USE_DEFAULT);

  Increment inc1 = new Increment(row1);
  inc1.setReturnResults(false);
  inc1.addColumn(FAMILY, col1, 1);
  Result res = region.increment(inc1);
  assertNull(res);
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
@Override
public long incrementColumnValue(byte[] rowId, byte[] colFamily, byte[] colQualifier, long l)
        throws IOException {
  // ColumnManager validation
  Increment increment = null;
  if (includedInRepositoryProcessing) {
    increment = new Increment(rowId).addColumn(colFamily, colQualifier, l);
    if (mTableDescriptor.hasColDescriptorWithColDefinitionsEnforced()) {
      repository.validateColumns(mTableDescriptor, increment);
    }
  }
  // Standard HBase processing (with aliasing, if necessary)
  long returnedLong;
  if (includedInRepositoryProcessing
          && mTableDescriptor.hasColDescriptorWithColAliasesEnabled()) {
    returnedLong = wrappedTable.incrementColumnValue(rowId, colFamily,
            repository.getAlias(mTableDescriptor, colFamily, colQualifier), l);
  } else {
    returnedLong = wrappedTable.incrementColumnValue(rowId, colFamily, colQualifier, l);
  }
  // ColumnManager auditing
  if (includedInRepositoryProcessing) {
    repository.putColumnAuditorSchemaEntities(mTableDescriptor, increment);
  }
  return returnedLong;
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
NavigableMap<byte[], NavigableMap<byte[], byte[]>> getFamilyQualifierToAliasMap(
        MTableDescriptor mTableDescriptor, Mutation mutation)
        throws IOException {
  NavigableMap<byte[], NavigableMap<byte[], byte[]>> familyQualifierToAliasMap
          = new TreeMap<>(Bytes.BYTES_COMPARATOR);
  Class<?> mutationClass = mutation.getClass();
  if (Append.class.isAssignableFrom(mutationClass)) {
    familyQualifierToAliasMap
            = getFamilyQualifierToAliasMap(mTableDescriptor, (Append)mutation);
  } else if (Increment.class.isAssignableFrom(mutationClass)) {
    familyQualifierToAliasMap
            = getFamilyQualifierToAliasMap(mTableDescriptor, (Increment)mutation);
  } else if (Delete.class.isAssignableFrom(mutationClass)
          || Put.class.isAssignableFrom(mutationClass)
          || RowMutations.class.isAssignableFrom(mutationClass)) {
    // ignore: familyQualifierToAliasMap not passed to alias-processing for these mutation-types
  }
  return familyQualifierToAliasMap;
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
Row convertQualifiersToAliases(MTableDescriptor mTableDescriptor, final Row originalRow,
        NavigableMap<byte[], NavigableMap<byte[], byte[]>> familyQualifierToAliasMap,
        int intForUniqueSignature)
        throws IOException {
  // Append, Delete, Get, Increment, Mutation, Put, RowMutations
  Class<?> originalRowClass = originalRow.getClass();
  if (Append.class.isAssignableFrom(originalRowClass)) {
    return convertQualifiersToAliases(
            mTableDescriptor, (Append)originalRow, familyQualifierToAliasMap);
  } else if (Delete.class.isAssignableFrom(originalRowClass)) {
    return convertQualifiersToAliases(mTableDescriptor, (Delete)originalRow);
  } else if (Get.class.isAssignableFrom(originalRowClass)) {
    return convertQualifiersToAliases(
            mTableDescriptor, (Get)originalRow, familyQualifierToAliasMap);
  } else if (Increment.class.isAssignableFrom(originalRowClass)) {
    return convertQualifiersToAliases(
            mTableDescriptor, (Increment)originalRow, familyQualifierToAliasMap);
  } else if (Put.class.isAssignableFrom(originalRowClass)) {
    return convertQualifiersToAliases(mTableDescriptor, (Put)originalRow);
  } else if (RowMutations.class.isAssignableFrom(originalRowClass)) {
    return convertQualifiersToAliases(mTableDescriptor, (RowMutations)originalRow);
  }
  return null;
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
private void testBatchProcessing(Table table) throws IOException, InterruptedException {
  List<Row> actions = new LinkedList<>();
  actions.add(new Append(ROW_ID_02)
          .add(CF01, COLQUALIFIER03, Bytes.toBytes("appendedStringViaBatch")));
  actions.add(new Delete(ROW_ID_03).addColumn(CF01, COLQUALIFIER04));
  actions.add(new Increment(ROW_ID_02).addColumn(CF01, COLQUALIFIER05, 14));
  actions.add(new Put(ROW_ID_05).
          addColumn(CF01, COLQUALIFIER04, TABLE_PUT_WITH_LIST).
          addColumn(CF02, COLQUALIFIER02, TABLE_PUT_WITH_LIST));
  actions.add(new Get(ROW_ID_01).addColumn(CF01, COLQUALIFIER02));
  Object[] returnedObjects = new Object[actions.size()];
  table.batch(actions, returnedObjects);
  int index = 0;
  for (Object returnedObject : returnedObjects) {
    assertTrue("Table#batch action failed for " + actions.get(index).getClass().getSimpleName(),
            returnedObject != null);
    if (Get.class.isAssignableFrom(actions.get(index).getClass())) {
      Result resultFromGet = (Result)returnedObject;
      assertTrue("Table#batch Get action returned unexpected Result: expected <"
              + Bytes.toString(TABLE_PUT_WITH_LIST) + ">, returned <"
              + Bytes.toString(resultFromGet.getValue(CF01, COLQUALIFIER02)) + ">",
              Bytes.equals(TABLE_PUT_WITH_LIST, resultFromGet.getValue(CF01, COLQUALIFIER02)));
    }
    index++;
  }
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
public void updateProfileCountsForSaleInHBase(Long buyerId, Long sellerId, ItemSaleEvent event) throws IOException, InterruptedException {
  HTableInterface profileTable = hTablePool.getTable(DataModelConsts.PROFILE_TABLE);
  ArrayList<Row> actions = new ArrayList<Row>();
  
  Increment buyerValueIncrement = new Increment(generateProfileRowKey(buyerId));
  buyerValueIncrement.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.CURRENT_LOG_IN_PURCHASES_VALUE_COL, event.getItemValue());
  buyerValueIncrement.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.TOTAL_VALUE_OF_PAST_SELLS_COL, event.getItemValue());
  actions.add(buyerValueIncrement);
  
  Increment sellerValueIncrement = new Increment(generateProfileRowKey(sellerId));
  sellerValueIncrement.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.CURRENT_LOG_IN_SELLS_VALUE_COL, event.getItemValue());
  sellerValueIncrement.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.TOTAL_VALUE_OF_PAST_SELLS_COL, event.getItemValue());
  actions.add(sellerValueIncrement);
  
  profileTable.batch(actions);
  
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
public void logInProfileInHBase(long userId, String ipAddress) throws IOException, Exception {
  HTableInterface profileTable = hTablePool.getTable(DataModelConsts.PROFILE_TABLE);
  
  ArrayList<Row> actions = new ArrayList<Row>();
  
  byte[] profileRowKey = generateProfileRowKey(userId);

  Delete delete = new Delete(profileRowKey);
  delete.deleteColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.CURRENT_LOG_IN_PURCHASES_VALUE_COL);
  delete.deleteColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.CURRENT_LOG_IN_SELLS_VALUE_COL);
  actions.add(delete);
  
  Increment increment = new Increment(profileRowKey);
  increment.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.LOG_IN_COUNT_COL, 1);
  actions.add(increment);
  
  Put put = new Put(profileRowKey);
  put.add(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.LAST_LOG_IN_COL, Bytes.toBytes(System.currentTimeMillis()));
  put.add(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.LOG_IN_IP_ADDERSSES, Bytes.toBytes(ipAddress));
  actions.add(put);
  
  profileTable.batch(actions);
}
 

import org.apache.hadoop.hbase.client.Increment; //導入依賴的package包/類
@Override
public void createProfile(long userId, ProfilePojo pojo, String ipAddress) throws Exception {
  HTableInterface profileTable = hTablePool.getTable(DataModelConsts.PROFILE_TABLE);
  
  ArrayList<Row> actions = new ArrayList<Row>();
  
  byte[] rowKey = generateProfileRowKey(userId);
  Put put = new Put(rowKey);
  put.add(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.FIXED_INFO_COL, Bytes.toBytes(pojo.getUsername() + "|" + pojo.getAge() + "|" + System.currentTimeMillis()));
  put.add(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.LOG_IN_IP_ADDERSSES, Bytes.toBytes(ipAddress));
  put.add(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.LAST_LOG_IN_COL, Bytes.toBytes(System.currentTimeMillis()));
  actions.add(put);
  
  Increment increment = new Increment(rowKey);
  
  increment.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.LOG_IN_COUNT_COL, 1);
  increment.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.TOTAL_SELLS_COL, 0);
  increment.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.TOTAL_PURCHASES_COL, 0);
  increment.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.TOTAL_VALUE_OF_PAST_PURCHASES_COL, 0);
  increment.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.TOTAL_VALUE_OF_PAST_SELLS_COL, 0);
  increment.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.CURRENT_LOG_IN_SELLS_VALUE_COL, 0);
  increment.addColumn(DataModelConsts.PROFILE_COLUMN_FAMILY, DataModelConsts.CURRENT_LOG_IN_PURCHASES_VALUE_COL, 0);
  actions.add(increment);
  
  profileTable.batch(actions);
}