Examples of org.apache.cassandra.thrift.Column

org.apache.cassandra.thrift.Column
Basic unit of data within a ColumnFamily. @param name, the name by which this column is set and retrieved. Maximum 64KB long. @param value. The data associated with the name. Maximum 2GB long, but in practice you should limit it to small numbers of MB (since Thrift must read the full value into memory to operate on it). @param timestamp. The timestamp is used for conflict detection/resolution when two columns with same name need to be compared. @param ttl. An optional, positive delay (in seconds) after which the column will be automatically deleted.

  public Mutate put(String columnFamily, String columnName,
      byte[] value, long timestamp) {


    Mutation mutation = new Mutation();
    ColumnOrSuperColumn csc = new ColumnOrSuperColumn();
    csc.column = new Column(ByteUtils.toBytes(columnName), value, timestamp);
    mutation.setColumn_or_supercolumn(csc);
    addToMutationMap(columnFamily, mutation);


    return this;
  }

View Full Code Here

    csc.super_column = new SuperColumn();
    csc.super_column.name = ByteUtils.toBytes(superColumnName);
    // TODO: This will probably be slow. Try to group all columns
    // under a supercolumn within a single mutation object
    csc.super_column.addToColumns(
        new Column(ByteUtils.toBytes(columnName), value, timestamp));
    mutation.setColumn_or_supercolumn(csc);
    addToMutationMap(superColumnFamily, mutation);


    return this;
  }

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        if (select.isColumnRange())
        {
            if (select.isWildcard())
            {
                // prepend key
                thriftColumns.add(new Column(metadata.getKeyName()).setValue(row.key.key).setTimestamp(-1));
            }


            // preserve comparator order
            for (IColumn c : row.cf.getSortedColumns())
            {
                if (c.isMarkedForDelete())
                    continue;
                thriftColumns.add(new Column(c.name()).setValue(c.value()).setTimestamp(c.timestamp()));
            }
        }
        else
        {
            String keyString = getKeyString(metadata);


            // order columns in the order they were asked for
            for (Term term : select.getColumnNames())
            {
                if (term.getText().equalsIgnoreCase(keyString))
                {
                    // preserve case of key as it was requested
                    ByteBuffer requestedKey = ByteBufferUtil.bytes(term.getText());
                    thriftColumns.add(new Column(requestedKey).setValue(row.key.key).setTimestamp(-1));
                    continue;
                }


                ByteBuffer name;
                try
                {
                    name = term.getByteBuffer(metadata.comparator);
                }
                catch (InvalidRequestException e)
                {
                    throw new AssertionError(e);
                }
                IColumn c = row.cf.getColumn(name);
                if (c == null || c.isMarkedForDelete())
                    thriftColumns.add(new Column().setName(name));
                else
                    thriftColumns.add(new Column(c.name()).setValue(c.value()).setTimestamp(c.timestamp()));
            }
        }
        return thriftColumns;
    }

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                              new String(row.array()), StringUtils.join(endpoints, ","), firstEndpoint);


            // now, read the row back directly from the host owning the row locally
            tester.setup(firstEndpoint.getHostAddress(), DatabaseDescriptor.getRpcPort());
            tester.thriftClient.set_keyspace(keyspace);
            tester.thriftClient.insert(row, parent, new Column(ByteBufferUtil.bytes("col1")).setValue(ByteBufferUtil.bytes("val1")).setTimestamp(1), ConsistencyLevel.ONE);
            Column column = tester.thriftClient.get(row, col, ConsistencyLevel.ONE).column;
            System.out.println("read row " + new String(row.array()) + " " + new String(column.name.array()) + ":" + new String(column.value.array()) + ":" + column.timestamp);
        }


        System.exit(1);
    }

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        for (List<ByteBuffer> row : rows)
        {
            List<Column> thriftCols = new ArrayList<Column>(metadata.columnCount);
            for (int i = 0; i < metadata.columnCount; i++)
            {
                Column col = new Column(ByteBufferUtil.bytes(metadata.names.get(i).name.toString()));
                col.setValue(row.get(i));
                thriftCols.add(col);
            }
            // The key of CqlRow shoudn't be needed in CQL3
            cqlRows.add(new CqlRow(ByteBufferUtil.EMPTY_BYTE_BUFFER, thriftCols));
        }

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                    ByteBuffer countBytes = ByteBufferUtil.bytes("count");
                    result.schema = new CqlMetadata(Collections.<ByteBuffer, String>emptyMap(),
                                                    Collections.<ByteBuffer, String>emptyMap(),
                                                    "AsciiType",
                                                    "LongType");
                    List<Column> columns = Collections.singletonList(new Column(countBytes).setValue(ByteBufferUtil.bytes((long) rows.size())));
                    result.rows = Collections.singletonList(new CqlRow(countBytes, columns));
                    return result;
                }


                // otherwise create resultset from query results
                result.schema = new CqlMetadata(new HashMap<ByteBuffer, String>(),
                                                new HashMap<ByteBuffer, String>(),
                                                TypeParser.getShortName(metadata.comparator),
                                                TypeParser.getShortName(metadata.getDefaultValidator()));
                List<CqlRow> cqlRows = new ArrayList<CqlRow>();
                for (org.apache.cassandra.db.Row row : rows)
                {
                    List<Column> thriftColumns = new ArrayList<Column>();
                    if (select.isColumnRange())
                    {
                        if (select.isWildcard())
                        {
                            // prepend key
                            thriftColumns.add(new Column(metadata.getKeyName()).setValue(row.key.key).setTimestamp(-1));
                            result.schema.name_types.put(metadata.getKeyName(), TypeParser.getShortName(AsciiType.instance));
                            result.schema.value_types.put(metadata.getKeyName(), TypeParser.getShortName(metadata.getKeyValidator()));
                        }


                        // preserve comparator order
                        if (row.cf != null)
                        {
                            for (IColumn c : row.cf.getSortedColumns())
                            {
                                if (c.isMarkedForDelete())
                                    continue;


                                ColumnDefinition cd = metadata.getColumnDefinition(c.name());
                                if (cd != null)
                                    result.schema.value_types.put(c.name(), TypeParser.getShortName(cd.getValidator()));


                                thriftColumns.add(thriftify(c));
                            }
                        }
                    }
                    else
                    {
                        String keyString = getKeyString(metadata);


                        // order columns in the order they were asked for
                        for (Term term : select.getColumnNames())
                        {
                            if (term.getText().equalsIgnoreCase(keyString))
                            {
                                // preserve case of key as it was requested
                                ByteBuffer requestedKey = ByteBufferUtil.bytes(term.getText());
                                thriftColumns.add(new Column(requestedKey).setValue(row.key.key).setTimestamp(-1));
                                result.schema.name_types.put(requestedKey, TypeParser.getShortName(AsciiType.instance));
                                result.schema.value_types.put(requestedKey, TypeParser.getShortName(metadata.getKeyValidator()));
                                continue;
                            }


                            if (row.cf == null)
                                continue;


                            ByteBuffer name;
                            try
                            {
                                name = term.getByteBuffer(metadata.comparator);
                            }
                            catch (InvalidRequestException e)
                            {
                                throw new AssertionError(e);
                            }


                            ColumnDefinition cd = metadata.getColumnDefinition(name);
                            if (cd != null)
                                result.schema.value_types.put(name, TypeParser.getShortName(cd.getValidator()));
                            IColumn c = row.cf.getColumn(name);
                            if (c == null || c.isMarkedForDelete())
                                thriftColumns.add(new Column().setName(name));
                            else
                                thriftColumns.add(thriftify(c));
                        }
                    }

View Full Code Here

    private static Column thriftify(IColumn c)
    {
        ByteBuffer value = (c instanceof CounterColumn)
                           ? ByteBufferUtil.bytes(CounterContext.instance().total(c.value()))
                           : c.value();
        return new Column(c.name()).setValue(value).setTimestamp(c.timestamp());
    }

View Full Code Here

        if (select.isColumnRange())
        {
            if (select.isWildcard())
            {
                // prepend key
                thriftColumns.add(new Column(metadata.getKeyName()).setValue(row.key.key).setTimestamp(-1));
            }


            // preserve comparator order
            for (IColumn c : row.cf.getSortedColumns())
            {
                if (c.isMarkedForDelete())
                    continue;
                thriftColumns.add(new Column(c.name()).setValue(c.value()).setTimestamp(c.timestamp()));
            }
        }
        else
        {
            String keyString = getKeyString(metadata);


            // order columns in the order they were asked for
            for (Term term : select.getColumnNames())
            {
                if (term.getText().equalsIgnoreCase(keyString))
                {
                    // preserve case of key as it was requested
                    ByteBuffer requestedKey = ByteBufferUtil.bytes(term.getText());
                    thriftColumns.add(new Column(requestedKey).setValue(row.key.key).setTimestamp(-1));
                    continue;
                }


                ByteBuffer name;
                try
                {
                    name = term.getByteBuffer(metadata.comparator);
                }
                catch (InvalidRequestException e)
                {
                    throw new AssertionError(e);
                }
                IColumn c = row.cf.getColumn(name);
                if (c == null || c.isMarkedForDelete())
                    thriftColumns.add(new Column().setName(name));
                else
                    thriftColumns.add(new Column(c.name()).setValue(c.value()).setTimestamp(c.timestamp()));
            }
        }
        return thriftColumns;
    }

View Full Code Here

                    ByteBuffer countBytes = ByteBufferUtil.bytes("count");
                    result.schema = new CqlMetadata(Collections.<ByteBuffer, String>emptyMap(),
                                                    Collections.<ByteBuffer, String>emptyMap(),
                                                    "AsciiType",
                                                    "LongType");
                    List<Column> columns = Collections.singletonList(new Column(countBytes).setValue(ByteBufferUtil.bytes((long) rows.size())));
                    result.rows = Collections.singletonList(new CqlRow(countBytes, columns));
                    return result;
                }


                // otherwise create resultset from query results
                result.schema = new CqlMetadata(new HashMap<ByteBuffer, String>(),
                                                new HashMap<ByteBuffer, String>(),
                                                metadata.comparator.toString(),
                                                TypeParser.getShortName(metadata.getDefaultValidator()));
                List<CqlRow> cqlRows = new ArrayList<CqlRow>();
                for (org.apache.cassandra.db.Row row : rows)
                {
                    /// No results for this row
                    if (row.cf == null)
                        continue;


                    List<Column> thriftColumns = new ArrayList<Column>();
                    if (select.isColumnRange())
                    {
                        if (select.isWildcard())
                        {
                            // prepend key
                            thriftColumns.add(new Column(metadata.getKeyName()).setValue(row.key.key).setTimestamp(-1));
                            result.schema.name_types.put(metadata.getKeyName(), TypeParser.getShortName(AsciiType.instance));
                            result.schema.value_types.put(metadata.getKeyName(), TypeParser.getShortName(metadata.getKeyValidator()));
                        }


                        // preserve comparator order
                        for (IColumn c : row.cf.getSortedColumns())
                        {
                            if (c.isMarkedForDelete())
                                continue;
                            thriftColumns.add(thriftify(c));
                        }
                    }
                    else
                    {
                        String keyString = getKeyString(metadata);


                        // order columns in the order they were asked for
                        for (Term term : select.getColumnNames())
                        {
                            if (term.getText().equalsIgnoreCase(keyString))
                            {
                                // preserve case of key as it was requested
                                ByteBuffer requestedKey = ByteBufferUtil.bytes(term.getText());
                                thriftColumns.add(new Column(requestedKey).setValue(row.key.key).setTimestamp(-1));
                                result.schema.name_types.put(requestedKey, TypeParser.getShortName(AsciiType.instance));
                                result.schema.value_types.put(requestedKey, TypeParser.getShortName(metadata.getKeyValidator()));
                                continue;
                            }


                            ByteBuffer name;
                            try
                            {
                                name = term.getByteBuffer(metadata.comparator);
                            }
                            catch (InvalidRequestException e)
                            {
                                throw new AssertionError(e);
                            }


                            ColumnDefinition cd = metadata.getColumnDefinition(name);
                            if (cd != null)
                                result.schema.value_types.put(name, TypeParser.getShortName(cd.getValidator()));
                            IColumn c = row.cf.getColumn(name);
                            if (c == null || c.isMarkedForDelete())
                                thriftColumns.add(new Column().setName(name));
                            else
                                thriftColumns.add(thriftify(c));
                        }
                    }

View Full Code Here

    private static Column thriftify(IColumn c)
    {
        ByteBuffer value = (c instanceof CounterColumn)
                           ? ByteBufferUtil.bytes(CounterContext.instance().total(c.value()))
                           : c.value();
        return new Column(c.name()).setValue(value).setTimestamp(c.timestamp());
    }

View Full Code Here

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