Examples of org.apache.cassandra.thrift.CqlRow

org.apache.cassandra.thrift.CqlRow
Row returned from a CQL query. This struct is used for both CQL2 and CQL3 queries. For CQL2, the partition key is special-cased and is always returned. For CQL3, it is not special cased; it will be included in the columns list if it was included in the SELECT and the key field is always null.

            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
        {
            // otherwise create resultset from query results

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                                // 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));
            }
        }
        // We don't allow reversed on range scan, but we do on multiget (IN (...)), so let's reverse the rows there too.
        if (parameters.isColumnsReversed)
            Collections.reverse(cqlRows);

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                        col.setValue(value(c)).setTimestamp(c.timestamp());
                    break;
            }
            thriftColumns.add(col);
        }
        return new CqlRow(key, thriftColumns);
    }

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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(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>(rows.size());
                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.getColumnDefinitionFromColumnName(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.getColumnDefinitionFromColumnName(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));
                        }
                    }


                    // Create a new row, add the columns to it, and then add it to the list of rows
                    CqlRow cqlRow = new CqlRow();
                    cqlRow.key = row.key.key;
                    cqlRow.columns = thriftColumns;
                    if (select.isColumnsReversed())
                        Collections.reverse(cqlRow.columns);
                    cqlRows.add(cqlRow);

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                Column col = new Column(ByteBufferUtil.bytes(metadata.names.get(i).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));
        }
        CqlResult res = new CqlResult(CqlResultType.ROWS);
        res.setRows(cqlRows).setSchema(schema);
        return res;
    }

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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) cqlRows.size())));
            result.rows = Collections.singletonList(new CqlRow(countColumn, columns));
            return result;
        }
        else
        {
            // otherwise create resultset from query results

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                            default:
                                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
                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
            {
                if (row.cf.getLiveColumnCount() == 0)
                    continue;


                // Static case: One cqlRow for all columns
                thriftColumns = new ArrayList<Column>(selection.size());


                // Respect selection order
                for (Pair<CFDefinition.Name, Selector> p : selection)
                {
                    CFDefinition.Name name = p.left;
                    Selector selector = p.right;


                    if (name.kind == CFDefinition.Name.Kind.KEY_ALIAS)
                    {
                        thriftColumns.add(new Column(selector.id().key).setValue(row.key.key).setTimestamp(-1L));
                        continue;
                    }


                    IColumn c = row.cf.getColumn(name.name.key);
                    thriftColumns.add(makeReturnColumn(selector, c));
                }
                cqlRows.add(new CqlRow(row.key.key, thriftColumns));
            }
        }


        orderResults(cqlRows);

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                default:
                    throw new AssertionError();
            }
            thriftColumns.add(col);
        }
        return new CqlRow(key, thriftColumns);
    }

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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) cqlRows.size())));
            result.rows = Collections.singletonList(new CqlRow(countColumn, columns));
            return result;
        }
        else
        {
            // otherwise create resultset from query results

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                            default:
                                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
                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
            {
                if (row.cf.getLiveColumnCount() == 0)
                    continue;


                // Static case: One cqlRow for all columns
                thriftColumns = new ArrayList<Column>(selection.size());


                // Respect selection order
                for (Pair<CFDefinition.Name, Selector> p : selection)
                {
                    CFDefinition.Name name = p.left;
                    Selector selector = p.right;


                    if (name.kind == CFDefinition.Name.Kind.KEY_ALIAS)
                    {
                        thriftColumns.add(new Column(selector.id().key).setValue(row.key.key).setTimestamp(-1L));
                        continue;
                    }


                    IColumn c = row.cf.getColumn(name.name.key);
                    thriftColumns.add(makeReturnColumn(selector, c));
                }
                cqlRows.add(new CqlRow(row.key.key, thriftColumns));
            }
        }


        // Internal calls always return columns in the comparator order, even when reverse was set
        if (isReversed)

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