Examples with ClientException org.hypertable.thriftgen.ClientException used on opensource projects

Example 1 with ClientException

use of org.hypertable.thriftgen.ClientException in project YCSB by brianfrankcooper.

the class HypertableClient method insert.

/**
   * Insert a record in the database. Any field/value pairs in the specified
   * values HashMap will be written into the record with the specified record
   * key.
   *
   * @param table
   *          The name of the table
   * @param key
   *          The record key of the record to insert.
   * @param values
   *          A HashMap of field/value pairs to insert in the record
   * @return Zero on success, a non-zero error code on error
   */
@Override
public Status insert(String table, String key, HashMap<String, ByteIterator> values) {
    if (debug) {
        System.out.println("Setting up put for key: " + key);
    }
    try {
        long mutator = connection.mutator_open(ns, table, 0, 0);
        SerializedCellsWriter writer = new SerializedCellsWriter(BUFFER_SIZE * values.size(), true);
        for (Map.Entry<String, ByteIterator> entry : values.entrySet()) {
            writer.add(key, columnFamily, entry.getKey(), SerializedCellsFlag.AUTO_ASSIGN, ByteBuffer.wrap(entry.getValue().toArray()));
        }
        connection.mutator_set_cells_serialized(mutator, writer.buffer(), true);
        connection.mutator_close(mutator);
    } catch (ClientException e) {
        if (debug) {
            System.err.println("Error doing set: " + e.message);
        }
        return Status.ERROR;
    } catch (TException e) {
        if (debug) {
            System.err.println("Error doing set");
        }
        return Status.ERROR;
    }
    return Status.OK;
}

Example 2 with ClientException

use of org.hypertable.thriftgen.ClientException in project YCSB by brianfrankcooper.

the class HypertableClient method scan.

/**
   * Perform a range scan for a set of records in the database. Each field/value
   * pair from the result will be stored in a HashMap.
   *
   * @param table
   *          The name of the table
   * @param startkey
   *          The record key of the first record to read.
   * @param recordcount
   *          The number of records to read
   * @param fields
   *          The list of fields to read, or null for all of them
   * @param result
   *          A Vector of HashMaps, where each HashMap is a set field/value
   *          pairs for one record
   * @return Zero on success, a non-zero error code on error
   */
@Override
public Status scan(String table, String startkey, int recordcount, Set<String> fields, Vector<HashMap<String, ByteIterator>> result) {
    // SELECT _columnFamily:fields FROM table WHERE (ROW >= startkey)
    // LIMIT recordcount MAX_VERSIONS 1;
    ScanSpec spec = new ScanSpec();
    RowInterval elem = new RowInterval();
    elem.setStart_inclusive(true);
    elem.setStart_row(startkey);
    spec.addToRow_intervals(elem);
    if (null != fields) {
        for (String field : fields) {
            spec.addToColumns(columnFamily + ":" + field);
        }
    }
    spec.setVersions(1);
    spec.setRow_limit(recordcount);
    SerializedCellsReader reader = new SerializedCellsReader(null);
    try {
        long sc = connection.scanner_open(ns, table, spec);
        String lastRow = null;
        boolean eos = false;
        while (!eos) {
            reader.reset(connection.scanner_get_cells_serialized(sc));
            while (reader.next()) {
                String currentRow = new String(reader.get_row());
                if (!currentRow.equals(lastRow)) {
                    result.add(new HashMap<String, ByteIterator>());
                    lastRow = currentRow;
                }
                result.lastElement().put(new String(reader.get_column_qualifier()), new ByteArrayByteIterator(reader.get_value()));
            }
            eos = reader.eos();
            if (debug) {
                System.out.println("Number of rows retrieved so far: " + result.size());
            }
        }
        connection.scanner_close(sc);
    } catch (ClientException e) {
        if (debug) {
            System.err.println("Error doing scan: " + e.message);
        }
        return Status.ERROR;
    } catch (TException e) {
        if (debug) {
            System.err.println("Error doing scan");
        }
        return Status.ERROR;
    }
    return Status.OK;
}

Example 3 with ClientException

use of org.hypertable.thriftgen.ClientException in project YCSB by brianfrankcooper.

the class HypertableClient method delete.

/**
   * Delete a record from the database.
   *
   * @param table
   *          The name of the table
   * @param key
   *          The record key of the record to delete.
   * @return Zero on success, a non-zero error code on error
   */
@Override
public Status delete(String table, String key) {
    if (debug) {
        System.out.println("Doing delete for key: " + key);
    }
    Cell entry = new Cell();
    entry.key = new Key();
    entry.key.row = key;
    entry.key.flag = KeyFlag.DELETE_ROW;
    try {
        connection.set_cell(ns, table, entry);
    } catch (ClientException e) {
        if (debug) {
            System.err.println("Error doing delete: " + e.message);
        }
        return Status.ERROR;
    } catch (TException e) {
        if (debug) {
            System.err.println("Error doing delete");
        }
        return Status.ERROR;
    }
    return Status.OK;
}

Example 4 with ClientException

use of org.hypertable.thriftgen.ClientException in project YCSB by brianfrankcooper.

the class HypertableClient method read.

/**
   * Read a record from the database. Each field/value pair from the result will
   * be stored in a HashMap.
   *
   * @param table
   *          The name of the table
   * @param key
   *          The record key of the record to read.
   * @param fields
   *          The list of fields to read, or null for all of them
   * @param result
   *          A HashMap of field/value pairs for the result
   * @return Zero on success, a non-zero error code on error
   */
@Override
public Status read(String table, String key, Set<String> fields, HashMap<String, ByteIterator> result) {
    if (debug) {
        System.out.println("Doing read from Hypertable columnfamily " + columnFamily);
        System.out.println("Doing read for key: " + key);
    }
    try {
        if (null != fields) {
            Vector<HashMap<String, ByteIterator>> resMap = new Vector<HashMap<String, ByteIterator>>();
            if (!scan(table, key, 1, fields, resMap).equals(Status.OK)) {
                return Status.ERROR;
            }
            if (!resMap.isEmpty()) {
                result.putAll(resMap.firstElement());
            }
        } else {
            SerializedCellsReader reader = new SerializedCellsReader(null);
            reader.reset(connection.get_row_serialized(ns, table, key));
            while (reader.next()) {
                result.put(new String(reader.get_column_qualifier()), new ByteArrayByteIterator(reader.get_value()));
            }
        }
    } catch (ClientException e) {
        if (debug) {
            System.err.println("Error doing read: " + e.message);
        }
        return Status.ERROR;
    } catch (TException e) {
        if (debug) {
            System.err.println("Error doing read");
        }
        return Status.ERROR;
    }
    return Status.OK;
}

Example 5 with ClientException

use of org.hypertable.thriftgen.ClientException in project YCSB by brianfrankcooper.

the class HypertableClient method init.

/**
   * Initialize any state for this DB. Called once per DB instance; there is one
   * DB instance per client thread.
   */
@Override
public void init() throws DBException {
    if ((getProperties().getProperty("debug") != null) && (getProperties().getProperty("debug").equals("true"))) {
        debug = true;
    }
    try {
        connection = ThriftClient.create("localhost", THRIFTBROKER_PORT);
        if (!connection.namespace_exists(NAMESPACE)) {
            connection.namespace_create(NAMESPACE);
        }
        ns = connection.open_namespace(NAMESPACE);
    } catch (ClientException e) {
        throw new DBException("Could not open namespace", e);
    } catch (TException e) {
        throw new DBException("Could not open namespace", e);
    }
    columnFamily = getProperties().getProperty("columnfamily");
    if (columnFamily == null) {
        System.err.println("Error, must specify a " + "columnfamily for Hypertable table");
        throw new DBException("No columnfamily specified");
    }
}