Package org.apache.hadoop.hbase.client

Examples of org.apache.hadoop.hbase.client.HTable$ClientScanner


    public HTable getTable(final byte[] tableName) throws
        IOException {
      String table = new String(tableName);
      Map<String, HTable> tables = threadLocalTables.get();
      if (!tables.containsKey(table)) {
        tables.put(table, new HTable(conf, tableName));
      }
      return tables.get(table);
    }
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    @Override
    public List<TRegionInfo> getTableRegions(ByteBuffer tableName)
    throws IOError {
      try {
        HTable table = getTable(tableName);
        Map<HRegionInfo, ServerName> regionLocations =
            table.getRegionLocations();
        List<TRegionInfo> results = new ArrayList<TRegionInfo>();
        for (Map.Entry<HRegionInfo, ServerName> entry :
            regionLocations.entrySet()) {
          HRegionInfo info = entry.getKey();
          ServerName serverName = entry.getValue();
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                              ByteBuffer row,
                              byte[] family,
                              byte[] qualifier,
                              Map<ByteBuffer, ByteBuffer> attributes) throws IOError {
      try {
        HTable table = getTable(tableName);
        Get get = new Get(getBytes(row));
        addAttributes(get, attributes);
        if (qualifier == null || qualifier.length == 0) {
          get.addFamily(family);
        } else {
          get.addColumn(family, qualifier);
        }
        Result result = table.get(get);
        return ThriftUtilities.cellFromHBase(result.raw());
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
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    public List<TCell> getVer(ByteBuffer tableName, ByteBuffer row,
                              byte[] family,
        byte[] qualifier, int numVersions,
        Map<ByteBuffer, ByteBuffer> attributes) throws IOError {
      try {
        HTable table = getTable(tableName);
        Get get = new Get(getBytes(row));
        addAttributes(get, attributes);
        get.addColumn(family, qualifier);
        get.setMaxVersions(numVersions);
        Result result = table.get(get);
        return ThriftUtilities.cellFromHBase(result.raw());
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
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    protected List<TCell> getVerTs(ByteBuffer tableName,
                                   ByteBuffer row, byte [] family,
        byte [] qualifier, long timestamp, int numVersions,
        Map<ByteBuffer, ByteBuffer> attributes) throws IOError {
      try {
        HTable table = getTable(tableName);
        Get get = new Get(getBytes(row));
        addAttributes(get, attributes);
        get.addColumn(family, qualifier);
        get.setTimeRange(Long.MIN_VALUE, timestamp);
        get.setMaxVersions(numVersions);
        Result result = table.get(get);
        return ThriftUtilities.cellFromHBase(result.raw());
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
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    @Override
    public List<TRowResult> getRowWithColumnsTs(
        ByteBuffer tableName, ByteBuffer row, List<ByteBuffer> columns,
        long timestamp, Map<ByteBuffer, ByteBuffer> attributes) throws IOError {
      try {
        HTable table = getTable(tableName);
        if (columns == null) {
          Get get = new Get(getBytes(row));
          addAttributes(get, attributes);
          get.setTimeRange(Long.MIN_VALUE, timestamp);
          Result result = table.get(get);
          return ThriftUtilities.rowResultFromHBase(result);
        }
        Get get = new Get(getBytes(row));
        addAttributes(get, attributes);
        for(ByteBuffer column : columns) {
          byte [][] famAndQf = KeyValue.parseColumn(getBytes(column));
          if (famAndQf.length == 1) {
              get.addFamily(famAndQf[0]);
          } else {
              get.addColumn(famAndQf[0], famAndQf[1]);
          }
        }
        get.setTimeRange(Long.MIN_VALUE, timestamp);
        Result result = table.get(get);
        return ThriftUtilities.rowResultFromHBase(result);
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
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                                                 List<ByteBuffer> rows,
        List<ByteBuffer> columns, long timestamp,
        Map<ByteBuffer, ByteBuffer> attributes) throws IOError {
      try {
        List<Get> gets = new ArrayList<Get>(rows.size());
        HTable table = getTable(tableName);
        if (metrics != null) {
          metrics.incNumRowKeysInBatchGet(rows.size());
        }
        for (ByteBuffer row : rows) {
          Get get = new Get(getBytes(row));
          addAttributes(get, attributes);
          if (columns != null) {

            for(ByteBuffer column : columns) {
              byte [][] famAndQf = KeyValue.parseColumn(getBytes(column));
              if (famAndQf.length == 1) {
                get.addFamily(famAndQf[0]);
              } else {
                get.addColumn(famAndQf[0], famAndQf[1]);
              }
            }
          }
          get.setTimeRange(Long.MIN_VALUE, timestamp);
          gets.add(get);
        }
        Result[] result = table.get(gets);
        return ThriftUtilities.rowResultFromHBase(result);
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
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    public void deleteAllTs(ByteBuffer tableName,
                            ByteBuffer row,
                            ByteBuffer column,
        long timestamp, Map<ByteBuffer, ByteBuffer> attributes) throws IOError {
      try {
        HTable table = getTable(tableName);
        Delete delete  = new Delete(getBytes(row));
        addAttributes(delete, attributes);
        byte [][] famAndQf = KeyValue.parseColumn(getBytes(column));
        if (famAndQf.length == 1) {
          delete.deleteFamily(famAndQf[0], timestamp);
        } else {
          delete.deleteColumns(famAndQf[0], famAndQf[1], timestamp);
        }
        table.delete(delete);

      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
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    @Override
    public void deleteAllRowTs(
        ByteBuffer tableName, ByteBuffer row, long timestamp,
        Map<ByteBuffer, ByteBuffer> attributes) throws IOError {
      try {
        HTable table = getTable(tableName);
        Delete delete  = new Delete(getBytes(row), timestamp, null);
        addAttributes(delete, attributes);
        table.delete(delete);
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
    }
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    @Override
    public void mutateRowTs(ByteBuffer tableName, ByteBuffer row,
        List<Mutation> mutations, long timestamp,
        Map<ByteBuffer, ByteBuffer> attributes)
        throws IOError, IllegalArgument {
      HTable table = null;
      try {
        table = getTable(tableName);
        Put put = new Put(getBytes(row), timestamp, null);
        addAttributes(put, attributes);

        Delete delete = new Delete(getBytes(row));
        addAttributes(delete, attributes);
        if (metrics != null) {
          metrics.incNumRowKeysInBatchMutate(mutations.size());
        }

        // I apologize for all this mess :)
        for (Mutation m : mutations) {
          byte[][] famAndQf = KeyValue.parseColumn(getBytes(m.column));
          if (m.isDelete) {
            if (famAndQf.length == 1) {
              delete.deleteFamily(famAndQf[0], timestamp);
            } else {
              delete.deleteColumns(famAndQf[0], famAndQf[1], timestamp);
            }
            delete.setWriteToWAL(m.writeToWAL);
          } else {
            if(famAndQf.length == 1) {
              put.add(famAndQf[0], HConstants.EMPTY_BYTE_ARRAY,
                  m.value != null ? getBytes(m.value)
                      : HConstants.EMPTY_BYTE_ARRAY);
            } else {
              put.add(famAndQf[0], famAndQf[1],
                  m.value != null ? getBytes(m.value)
                      : HConstants.EMPTY_BYTE_ARRAY);
            }
            put.setWriteToWAL(m.writeToWAL);
          }
        }
        if (!delete.isEmpty())
          table.delete(delete);
        if (!put.isEmpty())
          table.put(put);
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      } catch (IllegalArgumentException e) {
        LOG.warn(e.getMessage(), e);
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