Package org.apache.cassandra.cql3

Examples of org.apache.cassandra.cql3.CQLStatement

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    private ResultMessage resultMessage(List<PermissionDetails> details)
    {
        if (details.isEmpty())
            return new ResultMessage.Void();

        ResultSet result = new ResultSet(metadata);
        for (PermissionDetails pd : details)
        {
            result.addColumnValue(UTF8Type.instance.decompose(pd.username));
            result.addColumnValue(UTF8Type.instance.decompose(pd.resource.toString()));
            result.addColumnValue(UTF8Type.instance.decompose(pd.permission.toString()));
        }
        return new ResultMessage.Rows(result);
    }
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            throw new InvalidRequestException(String.format("Invalid operation, %s is not of map type", column.name));

        MapType mt = (MapType)column.type;
        for (Map.Entry<Term, Term> entry : values.entrySet())
        {
            Term key = entry.getKey();
            Term value = entry.getValue();
            if (key.isBindMarker())
                boundNames[key.bindIndex] = keySpecOf(column, mt);
            if (value.isBindMarker())
                boundNames[value.bindIndex] = valueSpecOf(column, mt);
        }
    }
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    }

    private void doSet(ColumnFamily cf, ColumnNameBuilder builder, UpdateParameters params, CollectionType validator, List<Pair<ByteBuffer, IColumn>> list) throws InvalidRequestException
    {
        int idx = validateListIdx(values.get(0), list);
        Term value = values.get(1);

        ByteBuffer name = list.get(idx).right.name();
        cf.addColumn(params.makeColumn(name, value.getByteBuffer(validator.valueComparator(), params.variables)));
    }
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        ListType lt = (ListType)column.type;
        if (kind == Kind.SET_IDX)
        {
            assert values.size() == 2;
            Term idx = values.get(0);
            Term value = values.get(1);
            if (idx.isBindMarker())
                boundNames[idx.bindIndex] = indexSpecOf(column);
            if (value.isBindMarker())
                boundNames[value.bindIndex] = valueSpecOf(column, lt);
        }
        else
        {
            for (Term t : values)
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            List<Term> parameters = new ArrayList<Term>(terms.size());
            boolean allTerminal = true;
            for (int i = 0; i < terms.size(); i++)
            {
                Term t = terms.get(i).prepare(Functions.makeArgSpec(receiver, fun, i));
                if (t instanceof NonTerminal)
                    allTerminal = false;
                parameters.add(t);
            }
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    }

    public static Map<UUID, ReplayPosition> getTruncationPositions()
    {
        String req = "SELECT truncated_at FROM system.%s WHERE key = '%s'";
        UntypedResultSet rows = processInternal(String.format(req, LOCAL_CF, LOCAL_KEY));
        if (rows.isEmpty())
            return Collections.emptyMap();

        UntypedResultSet.Row row = rows.one();
        Map<UUID, ByteBuffer> rawMap = row.getMap("truncated_at", UUIDType.instance, BytesType.instance);
        if (rawMap == null)
            return Collections.emptyMap();

        Map<UUID, ReplayPosition> positions = new HashMap<UUID, ReplayPosition>();
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            throw ex;
        }
        ColumnFamilyStore cfs = table.getColumnFamilyStore(LOCAL_CF);

        String req = "SELECT cluster_name FROM system.%s WHERE key='%s'";
        UntypedResultSet result = processInternal(String.format(req, LOCAL_CF, LOCAL_KEY));

        if (result.isEmpty() || !result.one().has("cluster_name"))
        {
            // this is a brand new node
            if (!cfs.getSSTables().isEmpty())
                throw new ConfigurationException("Found system table files, but they couldn't be loaded!");

            // no system files.  this is a new node.
            req = "INSERT INTO system.%s (key, cluster_name) VALUES ('%s', '%s')";
            processInternal(String.format(req, LOCAL_CF, LOCAL_KEY, DatabaseDescriptor.getClusterName()));
            return;
        }

        String savedClusterName = result.one().getString("cluster_name");
        if (!DatabaseDescriptor.getClusterName().equals(savedClusterName))
            throw new ConfigurationException("Saved cluster name " + savedClusterName + " != configured name " + DatabaseDescriptor.getClusterName());
    }
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    }

    public static Collection<Token> getSavedTokens()
    {
        String req = "SELECT tokens FROM system.%s WHERE key='%s'";
        UntypedResultSet result = processInternal(String.format(req, LOCAL_CF, LOCAL_KEY));
        return result.isEmpty() || !result.one().has("tokens")
             ? Collections.<Token>emptyList()
             : deserializeTokens(result.one().<String>getSet("tokens", UTF8Type.instance));
    }
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    }

    public static int incrementAndGetGeneration()
    {
        String req = "SELECT gossip_generation FROM system.%s WHERE key='%s'";
        UntypedResultSet result = processInternal(String.format(req, LOCAL_CF, LOCAL_KEY));

        int generation;
        if (result.isEmpty() || !result.one().has("gossip_generation"))
        {
            // seconds-since-epoch isn't a foolproof new generation
            // (where foolproof is "guaranteed to be larger than the last one seen at this ip address"),
            // but it's as close as sanely possible
            generation = (int) (System.currentTimeMillis() / 1000);
        }
        else
        {
            // Other nodes will ignore gossip messages about a node that have a lower generation than previously seen.
            final int storedGeneration = result.one().getInt("gossip_generation") + 1;
            final int now = (int) (System.currentTimeMillis() / 1000);
            if (storedGeneration >= now)
            {
                logger.warn("Using stored Gossip Generation {} as it is greater than current system time {}.  See CASSANDRA-3654 if you experience problems",
                            storedGeneration, now);
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    }

    public static BootstrapState getBootstrapState()
    {
        String req = "SELECT bootstrapped FROM system.%s WHERE key='%s'";
        UntypedResultSet result = processInternal(String.format(req, LOCAL_CF, LOCAL_KEY));

        if (result.isEmpty() || !result.one().has("bootstrapped"))
            return BootstrapState.NEEDS_BOOTSTRAP;

        return BootstrapState.valueOf(result.one().getString("bootstrapped"));
    }
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Related Classes of org.apache.cassandra.cql3.CQLStatement

  • com.datastax.driver.core.BatchStatement
  • com.datastax.driver.core.PreparedStatement
  • org.antlr.runtime.ANTLRStringStream
  • org.antlr.runtime.CharStream
  • org.antlr.runtime.CommonTokenStream
  • org.antlr.runtime.Token
  • org.antlr.runtime.TokenStream
  • org.apache.cassandra.auth.Auth
  • org.apache.cassandra.auth.AuthenticatedUser
  • org.apache.cassandra.auth.CassandraAuthorizer
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