Package org.apache.cassandra.db

Examples of org.apache.cassandra.db.ColumnFamily

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        }
    }

    public static Message createMessage(String Keyspace, String Key, String CFName, List<ColumnFamily> ColumnFamiles)
    {
        ColumnFamily baseColumnFamily;
        DataOutputBuffer bufOut = new DataOutputBuffer();
        RowMutation rm;
        Message message;
        Column column;

        /* Get the first column family from list, this is just to get past validation */
        baseColumnFamily = new ColumnFamily(CFName, "Standard",DatabaseDescriptor.getComparator(Keyspace, CFName), DatabaseDescriptor.getSubComparator(Keyspace, CFName));
       
        for(ColumnFamily cf : ColumnFamiles) {
            bufOut.reset();
            try
            {
                ColumnFamily.serializer().serializeWithIndexes(cf, bufOut);
                byte[] data = new byte[bufOut.getLength()];
                System.arraycopy(bufOut.getData(), 0, data, 0, bufOut.getLength());

                column = new Column(cf.name().getBytes("UTF-8"), data, 0, false);
                baseColumnFamily.addColumn(column);
            }
            catch (IOException e)
            {
                throw new RuntimeException(e);
            }
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            StorageService.instance.stopClient();
        }

        public void reduce(Text key, Iterator<Text> values, OutputCollector<Text, Text> output, Reporter reporter) throws IOException
        {
            ColumnFamily columnFamily;
            String keyspace = "Keyspace1";
            String cfName = "Super1";
            Message message;
            List<ColumnFamily> columnFamilies;
            columnFamilies = new LinkedList<ColumnFamily>();
            String line;

            /* Create a column family */
            columnFamily = ColumnFamily.create(keyspace, cfName);
            while (values.hasNext()) {
                // Split the value (line based on your own delimiter)
                line = values.next().toString();
                String[] fields = line.split("\1");
                String SuperColumnName = fields[1];
                String ColumnName = fields[2];
                String ColumnValue = fields[3];
                int timestamp = 0;
                columnFamily.addColumn(new QueryPath(cfName, SuperColumnName.getBytes("UTF-8"), ColumnName.getBytes("UTF-8")), ColumnValue.getBytes(), timestamp);
            }

            columnFamilies.add(columnFamily);

            /* Get serialized message to send to cluster */
 
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                    throw new DigestMismatchException(s);
                }
            }
        }

        ColumnFamily resolved = resolveSuperset(versions);
        maybeScheduleRepairs(resolved, table, key, versions, endPoints);

        if (logger_.isDebugEnabled())
            logger_.debug("resolve: " + (System.currentTimeMillis() - startTime) + " ms.");
    return new Row(key, resolved);
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        Map<String, ColumnFamily> cfamilies = readColumnFamily(commands, level);
        Map<String, Collection<IColumn>> columnFamiliesMap = new HashMap<String, Collection<IColumn>>();
       
        for (ReadCommand command: commands)
        {
            ColumnFamily cfamily = cfamilies.get(command.key);
            if (cfamily == null)
                continue;

            Collection<IColumn> columns = null;
            if (command.queryPath.superColumnName != null)
            {
                IColumn column = cfamily.getColumn(command.queryPath.superColumnName);
                if (column != null)
                {
                    columns = column.getSubColumns();
                }
            }
            else
            {
                columns = cfamily.getSortedColumns();
            }

            if (columns != null && columns.size() != 0)
            {
                columnFamiliesMap.put(command.key, columns);
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        try
        {
            if (rows.size() > 1 || major)
            {
                ColumnFamily cf = null;
                for (IteratingRow row : rows)
                {
                    ColumnFamily thisCF;
                    try
                    {
                        thisCF = row.getColumnFamily();
                    }
                    catch (IOException e)
                    {
                        logger.error("Skipping row " + key + " in " + row.getPath(), e);
                        continue;
                    }
                    if (cf == null)
                    {
                        cf = thisCF;
                    }
                    else
                    {
                        cf.addAll(thisCF);
                    }
                }
                ColumnFamily cfPurged = major ? ColumnFamilyStore.removeDeleted(cf, gcBefore) : cf;
                if (cfPurged == null)
                    return null;
                ColumnFamily.serializer().serializeWithIndexes(cfPurged, buffer);
            }
            else
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     */
    public static void maybeScheduleRepairs(ColumnFamily resolved, String table, String key, List<ColumnFamily> versions, List<InetAddress> endPoints)
    {
        for (int i = 0; i < versions.size(); i++)
        {
            ColumnFamily diffCf = ColumnFamily.diff(versions.get(i), resolved);
            if (diffCf == null) // no repair needs to happen
                continue;

            // create and send the row mutation message based on the diff
            RowMutation rowMutation = new RowMutation(table, key);
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    }

    static ColumnFamily resolveSuperset(List<ColumnFamily> versions)
    {
        assert versions.size() > 0;
        ColumnFamily resolved = null;
        for (ColumnFamily cf : versions)
        {
            if (cf != null)
            {
                resolved = cf.cloneMe();
                break;
            }
        }
        if (resolved == null)
            return null;
        for (ColumnFamily cf : versions)
        {
            resolved.resolve(cf);
        }
        return resolved;
    }
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                versionSources.add(current.right);
            }

            protected Row getReduced()
            {
                ColumnFamily resolved = ReadResponseResolver.resolveSuperset(versions);
                ReadResponseResolver.maybeScheduleRepairs(resolved, table, key, versions, versionSources);
                versions.clear();
                return new Row(key, resolved);
            }
        };
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        return json.toString();
    }
   
    private static String serializeRow(IteratingRow row) throws IOException
    {
        ColumnFamily cf = row.getColumnFamily();
        AbstractType comparator = cf.getComparator();
        StringBuilder json = new StringBuilder(asKey(row.getKey().key));
       
        if (cf.isSuper())
        {
            json.append("{ ");

            Iterator<IColumn> iter = cf.getSortedColumns().iterator();
            while (iter.hasNext())
            {
                IColumn column = iter.next();
                json.append(asKey(bytesToHex(column.name())));
                json.append("{");
                json.append(asKey("deletedAt"));
                json.append(column.getMarkedForDeleteAt());
                json.append(", ");
                json.append(asKey("subColumns"));
                json.append(serializeColumns(column.getSubColumns(), comparator));
                json.append("}");
                if (iter.hasNext())
                    json.append(", ");
            }
           
            json.append("}");
        }
        else
        {
            json.append(serializeColumns(cf.getSortedColumns(), comparator));
        }
    
        return json.toString();
    }
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                versionSources.add(current.right);
            }

            protected Row getReduced()
            {
                ColumnFamily resolved = RowRepairResolver.resolveSuperset(versions);
                RowRepairResolver.maybeScheduleRepairs(resolved, table, key, versions, versionSources);
                versions.clear();
                versionSources.clear();
                return new Row(key, resolved);
            }
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