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.

                              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"), ByteBufferUtil.bytes("val1"), 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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                              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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                    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.isFullWildcard())
                        {
                            // 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, variables);
                            }
                            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));
                        }
                    }

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    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());
    }

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

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                    {
                        CFDefinition.Name name = p.left;
                        ByteBuffer nameAsRequested = p.right.key;


                        addToSchema(schema, p);
                        Column col = new Column(nameAsRequested);
                        switch (name.kind)
                        {
                            case KEY_ALIAS:
                                col.setValue(row.key.key).setTimestamp(-1L);
                                break;
                            case COLUMN_ALIAS:
                                col.setTimestamp(c.timestamp());
                                if (cfDef.isComposite)
                                {
                                    if (name.position < components.length)
                                        col.setValue(components[name.position]);
                                    else
                                        col.setValue(ByteBufferUtil.EMPTY_BYTE_BUFFER);
                                }
                                else
                                {
                                    col.setValue(c.name());
                                }
                                break;
                            case VALUE_ALIAS:
                                col.setValue(value(c)).setTimestamp(c.timestamp());
                                break;
                            case COLUMN_METADATA:
                                // This should not happen for compact CF
                                throw new AssertionError();
                        }
                        thriftColumns.add(col);
                    }
                    cqlRows.add(new CqlRow(row.key.key, thriftColumns));
                }
            }
            else if (cfDef.isComposite)
            {
                // Sparse case: group column in cqlRow when composite prefix is equal
                if (row.cf == null)
                    continue;


                CompositeType composite = (CompositeType)cfDef.cfm.comparator;
                int last = composite.types.size() - 1;


                ByteBuffer[] previous = null;
                Map<ByteBuffer, IColumn> group = new HashMap<ByteBuffer, IColumn>();
                for (IColumn c : row.cf)
                {
                    if (c.isMarkedForDelete())
                        continue;


                    ByteBuffer[] current = composite.split(c.name());
                    // If current differs from previous, we've just finished a group
                    if (previous != null && !isSameRow(previous, current))
                    {
                        cqlRows.add(handleGroup(selection, row.key.key, previous, group, schema));
                        group = new HashMap<ByteBuffer, IColumn>();
                    }


                    // Accumulate the current column
                    group.put(current[last], c);
                    previous = current;
                }
                // Handle the last group
                if (previous != null)
                    cqlRows.add(handleGroup(selection, row.key.key, previous, group, schema));
            }
            else
            {
                // Static case: One cqlRow for all columns
                thriftColumns = new ArrayList<Column>();
                // Respect selection order
                for (Pair<CFDefinition.Name, ColumnIdentifier> p : selection)
                {
                    CFDefinition.Name name = p.left;
                    ByteBuffer nameAsRequested = p.right.key;


                    if (name.kind == CFDefinition.Name.Kind.KEY_ALIAS)
                    {
                        addToSchema(schema, p);
                        thriftColumns.add(new Column(nameAsRequested).setValue(row.key.key).setTimestamp(-1L));
                        continue;
                    }


                    if (row.cf == null)
                        continue;


                    addToSchema(schema, p);
                    IColumn c = row.cf.getColumn(name.name.key);
                    Column col = new Column(name.name.key);
                    if (c != null && !c.isMarkedForDelete())
                        col.setValue(value(c)).setTimestamp(c.timestamp());
                    thriftColumns.add(col);
                }
                cqlRows.add(new CqlRow(row.key.key, thriftColumns));
            }
        }

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        {
            CFDefinition.Name name = p.left;
            ByteBuffer nameAsRequested = p.right.key;


            addToSchema(schema, p);
            Column col = new Column(nameAsRequested);
            switch (name.kind)
            {
                case KEY_ALIAS:
                    col.setValue(key).setTimestamp(-1L);
                    break;
                case COLUMN_ALIAS:
                    col.setValue(components[name.position]);
                    col.setTimestamp(-1L);
                    break;
                case VALUE_ALIAS:
                    // This should not happen for SPARSE
                    throw new AssertionError();
                case COLUMN_METADATA:
                    IColumn c = columns.get(name.name.key);
                    if (c != null && !c.isMarkedForDelete())
                        col.setValue(value(c)).setTimestamp(c.timestamp());
                    break;
            }
            thriftColumns.add(col);
        }
        return new CqlRow(key, thriftColumns);

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                css_.out.println(")"); 
            }
            else
            {
                Column column = cosc.column;
                css_.out.printf("=> (column=%s, value=%s, timestamp=%d)\n", formatColumnName(keyspace, columnFamily, column),
                                new String(column.value, "UTF-8"), column.timestamp);
            }
        }

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            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);
    }

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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));
                        }
                    }

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