Package org.apache.cassandra.db

Examples of org.apache.cassandra.db.ColumnFamily$Factory

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    public static SSTableReader writeSSTable(Set<String> keys) throws IOException
    {
        TreeMap<String, ColumnFamily> map = new TreeMap<String, ColumnFamily>();
        for (String key : keys)
        {
            ColumnFamily cf = ColumnFamily.create(TABLENAME, CFNAME);
            cf.addColumn(new Column(key.getBytes(), key.getBytes(), 0));
            map.put(key, cf);
        }
        return writeSSTable(map);
    }
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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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     */
    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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            List<ColumnFamily> versions = new ArrayList<ColumnFamily>(sources.size());
            for (InetAddress endpoint : sources)
            {
                versions.add(replies.get(endpoint).get(key));
            }
            ColumnFamily resolved = ReadResponseResolver.resolveSuperset(versions);
            ReadResponseResolver.maybeScheduleRepairs(resolved, table, key, versions, sources);
            resolvedRows.put(key, resolved);
        }
        return resolvedRows;
    }
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{
    @Test
    public void testExportSimpleCf() throws IOException
    {
        File tempSS = createTemporarySSTable("Keyspace1", "Standard1");
        ColumnFamily cfamily = ColumnFamily.create("Keyspace1", "Standard1");
        IPartitioner<?> partitioner = DatabaseDescriptor.getPartitioner();
        DataOutputBuffer dob = new DataOutputBuffer();
        SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2, partitioner);
       
        // Add rowA
        cfamily.addColumn(new QueryPath("Standard1", null, "colA".getBytes()), "valA".getBytes(), 1, false);
        ColumnFamily.serializer().serializeWithIndexes(cfamily, dob);
        writer.append(partitioner.decorateKey("rowA"), dob);
        dob.reset();
        cfamily.clear();
       
        // Add rowB
        cfamily.addColumn(new QueryPath("Standard1", null, "colB".getBytes()), "valB".getBytes(), 1, false);
        ColumnFamily.serializer().serializeWithIndexes(cfamily, dob);
        writer.append(partitioner.decorateKey("rowB"), dob);
        dob.reset();
        cfamily.clear();
    
        SSTableReader reader = writer.closeAndOpenReader(0);
       
        // Export to JSON and verify
        File tempJson = File.createTempFile("Standard1", ".json");
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    @Test
    public void testExportSuperCf() throws IOException
    {
        File tempSS = createTemporarySSTable("Keyspace1", "Super4");
        ColumnFamily cfamily = ColumnFamily.create("Keyspace1", "Super4");
        IPartitioner<?> partitioner = DatabaseDescriptor.getPartitioner();
        DataOutputBuffer dob = new DataOutputBuffer();
        SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2, partitioner);
       
        // Add rowA
        cfamily.addColumn(new QueryPath("Super4", "superA".getBytes(), "colA".getBytes()), "valA".getBytes(), 1, false);
        ColumnFamily.serializer().serializeWithIndexes(cfamily, dob);
        writer.append(partitioner.decorateKey("rowA"), dob);
        dob.reset();
        cfamily.clear();
       
        // Add rowB
        cfamily.addColumn(new QueryPath("Super4", "superB".getBytes(), "colB".getBytes()), "valB".getBytes(), 1, false);
        ColumnFamily.serializer().serializeWithIndexes(cfamily, dob);
        writer.append(partitioner.decorateKey("rowB"), dob);
        dob.reset();
        cfamily.clear();
    
        SSTableReader reader = writer.closeAndOpenReader(0);
       
        // Export to JSON and verify
        File tempJson = File.createTempFile("Super4", ".json");
        SSTableExport.export(reader, new PrintStream(tempJson.getPath()));
       
        JSONObject json = (JSONObject)JSONValue.parse(new FileReader(tempJson));
       
        JSONObject rowA = (JSONObject)json.get("rowA");
        JSONObject superA = (JSONObject)rowA.get(cfamily.getComparator().getString("superA".getBytes()));
        JSONArray subColumns = (JSONArray)superA.get("subColumns");
        JSONArray colA = (JSONArray)subColumns.get(0);
       
        assert Arrays.equals(hexToBytes((String)colA.get(1)), "valA".getBytes());
        assert !(Boolean)colA.get(3);      
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    @Test
    public void testRoundTripStandardCf() throws IOException, ParseException
    {
        File tempSS = createTemporarySSTable("Keyspace1", "Standard1");
        ColumnFamily cfamily = ColumnFamily.create("Keyspace1", "Standard1");
        IPartitioner<?> partitioner = DatabaseDescriptor.getPartitioner();
        DataOutputBuffer dob = new DataOutputBuffer();
        SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2, partitioner);
       
        // Add rowA
        cfamily.addColumn(new QueryPath("Standard1", null, "name".getBytes()), "val".getBytes(), 1, false);
        ColumnFamily.serializer().serializeWithIndexes(cfamily, dob);
        writer.append(partitioner.decorateKey("rowA"), dob);
        dob.reset();
        cfamily.clear();
       
        SSTableReader reader = writer.closeAndOpenReader(0);
       
        // Export to JSON and verify
        File tempJson = File.createTempFile("Standard1", ".json");
        SSTableExport.export(reader, new PrintStream(tempJson.getPath()));
       
        // Import JSON to another SSTable file
        File tempSS2 = createTemporarySSTable("Keyspace1", "Standard1");
        SSTableImport.importJson(tempJson.getPath(), "Keyspace1", "Standard1", tempSS2.getPath());       
       
        reader = SSTableAccessor.getSSTableReader(tempSS2.getPath(), DatabaseDescriptor.getPartitioner());
        NamesQueryFilter qf = new NamesQueryFilter("rowA", new QueryPath("Standard1", null, null), "name".getBytes());
        ColumnFamily cf = qf.getSSTableColumnIterator(reader).getColumnFamily();
        assertTrue(cf != null);
        assertTrue(Arrays.equals(cf.getColumn("name".getBytes()).value(), hexToBytes("76616c")));
    }
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        SSTableImport.importJson(jsonUrl, "Keyspace1", "Standard1", tempSS.getPath());

        // Verify results
        SSTableReader reader = SSTableAccessor.getSSTableReader(tempSS.getPath(), DatabaseDescriptor.getPartitioner());
        NamesQueryFilter qf = new NamesQueryFilter("rowA", new QueryPath("Standard1", null, null), "colAA".getBytes());
        ColumnFamily cf = qf.getSSTableColumnIterator(reader).getColumnFamily();
        assert Arrays.equals(cf.getColumn("colAA".getBytes()).value(), hexToBytes("76616c4141"));
    }
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        SSTableImport.importJson(jsonUrl, "Keyspace1", "Super4", tempSS.getPath());
       
        // Verify results
        SSTableReader reader = SSTableAccessor.getSSTableReader(tempSS.getPath(), DatabaseDescriptor.getPartitioner());
        NamesQueryFilter qf = new NamesQueryFilter("rowA", new QueryPath("Super4", null, null), "superA".getBytes());
        ColumnFamily cf = qf.getSSTableColumnIterator(reader).getColumnFamily();
        IColumn superCol = cf.getColumn("superA".getBytes());
        assert Arrays.equals(superCol.getSubColumn("colAA".getBytes()).value(), hexToBytes("76616c75654141"));
    }
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