Exemple #1
0
  // Execute SET statement
  private void executeSet(CommonTree ast)
      throws TException, InvalidRequestException, UnavailableException, TimedOutException,
          UnsupportedEncodingException {
    if (!CliMain.isConnected()) return;

    assert (ast.getChildCount() == 2) : "serious parsing error (this is a bug).";

    CommonTree columnFamilySpec = (CommonTree) ast.getChild(0);
    if (!(columnFamilySpec.getType() == CliParser.NODE_COLUMN_ACCESS)) return;

    String tableName = CliCompiler.getTableName(columnFamilySpec);
    String key = CliCompiler.getKey(columnFamilySpec);
    String columnFamily = CliCompiler.getColumnFamily(columnFamilySpec);
    int columnSpecCnt = CliCompiler.numColumnSpecifiers(columnFamilySpec);
    String value = CliUtils.unescapeSQLString(ast.getChild(1).getText());

    byte[] superColumnName = null;
    byte[] columnName = null;

    // table.cf['key']
    if (columnSpecCnt == 0) {
      css_.err.println("No column name specified, (type 'help' or '?' for help on syntax).");
      return;
    }
    // table.cf['key']['column'] = 'value'
    else if (columnSpecCnt == 1) {
      // get the column name
      columnName = CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8");
    }
    // table.cf['key']['super_column']['column'] = 'value'
    else {
      assert (columnSpecCnt == 2) : "serious parsing error (this is a bug).";

      // get the super column and column names
      superColumnName = CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8");
      columnName = CliCompiler.getColumn(columnFamilySpec, 1).getBytes("UTF-8");
    }

    // do the insert
    thriftClient_.insert(
        tableName,
        key,
        createColumnPath(columnFamily, superColumnName, columnName),
        value.getBytes(),
        timestampMicros(),
        ConsistencyLevel.ONE);

    css_.out.println("Value inserted.");
  }
Exemple #2
0
  // process a statement of the form: describe table <tablename>
  private void executeDescribeTable(CommonTree ast) throws TException {
    if (!CliMain.isConnected()) return;

    // Get table name
    int childCount = ast.getChildCount();
    assert (childCount == 1);

    String tableName = ast.getChild(0).getText();

    if (tableName == null) {
      css_.out.println("Keyspace argument required");
      return;
    }

    // Describe and display
    Map<String, Map<String, String>> columnFamiliesMap;
    try {
      columnFamiliesMap = thriftClient_.describe_keyspace(tableName);
      for (String columnFamilyName : columnFamiliesMap.keySet()) {
        Map<String, String> columnMap = columnFamiliesMap.get(columnFamilyName);
        String desc = columnMap.get("Desc");
        String columnFamilyType = columnMap.get("Type");
        String sort = columnMap.get("CompareWith");
        String flushperiod = columnMap.get("FlushPeriodInMinutes");
        css_.out.println(desc);
        css_.out.println("Column Family Type: " + columnFamilyType);
        css_.out.println("Column Sorted By: " + sort);
        css_.out.println("flush period: " + flushperiod + " minutes");
        css_.out.println("------");
      }
    } catch (NotFoundException e) {
      css_.out.println("Keyspace " + tableName + " could not be found.");
    }
  }
Exemple #3
0
  private void executeCount(CommonTree ast)
      throws TException, InvalidRequestException, UnavailableException, TimedOutException,
          UnsupportedEncodingException {
    if (!CliMain.isConnected()) return;

    int childCount = ast.getChildCount();
    assert (childCount == 1);

    CommonTree columnFamilySpec = (CommonTree) ast.getChild(0);
    if (!(columnFamilySpec.getType() == CliParser.NODE_COLUMN_ACCESS)) return;

    String tableName = CliCompiler.getTableName(columnFamilySpec);
    String key = CliCompiler.getKey(columnFamilySpec);
    String columnFamily = CliCompiler.getColumnFamily(columnFamilySpec);
    int columnSpecCnt = CliCompiler.numColumnSpecifiers(columnFamilySpec);

    ColumnParent colParent;

    if (columnSpecCnt == 0) {
      colParent = createColumnParent(columnFamily, null);
    } else {
      assert (columnSpecCnt == 1);
      colParent =
          createColumnParent(
              columnFamily, CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8"));
    }

    int count = thriftClient_.get_count(tableName, key, colParent, ConsistencyLevel.ONE);
    css_.out.printf("%d columns\n", count);
  }
Exemple #4
0
  private void executeDelete(CommonTree ast)
      throws TException, InvalidRequestException, UnavailableException, TimedOutException,
          UnsupportedEncodingException {
    if (!CliMain.isConnected()) return;

    int childCount = ast.getChildCount();
    assert (childCount == 1);

    CommonTree columnFamilySpec = (CommonTree) ast.getChild(0);
    if (!(columnFamilySpec.getType() == CliParser.NODE_COLUMN_ACCESS)) return;

    String tableName = CliCompiler.getTableName(columnFamilySpec);
    String key = CliCompiler.getKey(columnFamilySpec);
    String columnFamily = CliCompiler.getColumnFamily(columnFamilySpec);
    int columnSpecCnt = CliCompiler.numColumnSpecifiers(columnFamilySpec);

    byte[] superColumnName = null;
    byte[] columnName = null;
    boolean isSuper;

    try {
      if (!(getCFMetaData(tableName).containsKey(columnFamily))) {
        css_.out.println("No such column family: " + columnFamily);
        return;
      }

      isSuper =
          getCFMetaData(tableName).get(columnFamily).get("Type").equals("Super") ? true : false;
    } catch (NotFoundException nfe) {
      css_.out.printf("No such keyspace: %s\n", tableName);
      return;
    }

    if ((columnSpecCnt < 0) || (columnSpecCnt > 2)) {
      css_.out.println("Invalid row, super column, or column specification.");
      return;
    }

    if (columnSpecCnt == 1) {
      // table.cf['key']['column']
      if (isSuper) superColumnName = CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8");
      else columnName = CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8");
    } else if (columnSpecCnt == 2) {
      // table.cf['key']['column']['column']
      superColumnName = CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8");
      columnName = CliCompiler.getColumn(columnFamilySpec, 1).getBytes("UTF-8");
    }

    thriftClient_.remove(
        tableName,
        key,
        createColumnPath(columnFamily, superColumnName, columnName),
        timestampMicros(),
        ConsistencyLevel.ONE);
    css_.out.println(String.format("%s removed.", (columnSpecCnt == 0) ? "row" : "column"));
  }
Exemple #5
0
  // process a statement of the form: connect hostname/port
  private void executeConnect(CommonTree ast) {
    int portNumber = Integer.parseInt(ast.getChild(1).getText());
    Tree idList = ast.getChild(0);

    StringBuilder hostName = new StringBuilder();
    int idCount = idList.getChildCount();
    for (int idx = 0; idx < idCount; idx++) {
      hostName.append(idList.getChild(idx).getText());
    }

    // disconnect current connection, if any.
    // This is a no-op, if you aren't currently connected.
    CliMain.disconnect();

    // now, connect to the newly specified host name and port
    css_.hostName = hostName.toString();
    css_.thriftPort = portNumber;
    CliMain.connect(css_.hostName, css_.thriftPort);
  }
Exemple #6
0
  // Execute GET statement
  private void executeGet(CommonTree ast)
      throws TException, NotFoundException, InvalidRequestException, UnavailableException,
          TimedOutException, UnsupportedEncodingException, IllegalAccessException,
          InstantiationException, ClassNotFoundException {

    if (!CliMain.isConnected()) return;

    // This will never happen unless the grammar is broken
    assert (ast.getChildCount() == 1) : "serious parsing error (this is a bug).";

    CommonTree columnFamilySpec = (CommonTree) ast.getChild(0);
    if (!(columnFamilySpec.getType() == CliParser.NODE_COLUMN_ACCESS)) return;

    String tableName = CliCompiler.getTableName(columnFamilySpec);
    String key = CliCompiler.getKey(columnFamilySpec);
    String columnFamily = CliCompiler.getColumnFamily(columnFamilySpec);
    int columnSpecCnt = CliCompiler.numColumnSpecifiers(columnFamilySpec);

    if (!(getCFMetaData(tableName).containsKey(columnFamily))) {
      css_.out.println("No such column family: " + columnFamily);
      return;
    }

    boolean isSuper =
        getCFMetaData(tableName).get(columnFamily).get("Type").equals("Super") ? true : false;

    byte[] superColumnName = null;
    byte[] columnName = null;

    // table.cf['key'] -- row slice
    if (columnSpecCnt == 0) {
      doSlice(tableName, key, columnFamily, superColumnName);
      return;
    }

    // table.cf['key']['column'] -- slice of a super, or get of a standard
    if (columnSpecCnt == 1) {
      if (isSuper) {
        superColumnName = CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8");
        doSlice(tableName, key, columnFamily, superColumnName);
        return;
      } else {
        columnName = CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8");
      }
    }
    // table.cf['key']['column']['column'] -- get of a sub-column
    else if (columnSpecCnt == 2) {
      superColumnName = CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8");
      columnName = CliCompiler.getColumn(columnFamilySpec, 1).getBytes("UTF-8");
    }
    // The parser groks an arbitrary number of these so it is possible to get here.
    else {
      css_.out.println("Invalid row, super column, or column specification.");
      return;
    }

    // Perform a get(), print out the results.
    ColumnPath path = createColumnPath(columnFamily, superColumnName, columnName);
    Column column = thriftClient_.get(tableName, key, path, ConsistencyLevel.ONE).column;
    css_.out.printf(
        "=> (column=%s, value=%s, timestamp=%d)\n",
        formatColumnName(tableName, columnFamily, column),
        new String(column.value, "UTF-8"),
        column.timestamp);
  }