Package org.apache.cassandra.cql3

Examples of org.apache.cassandra.cql3.UntypedResultSet.one()

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        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"));
    }

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

        // Look up the Host UUID (return it if found)
        if (!result.isEmpty() && result.one().has("host_id"))
        {
            return result.one().getUUID("host_id");
        }

        // ID not found, generate a new one, persist, and then return it.
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        UntypedResultSet result = processInternal(String.format(req, LOCAL_CF, LOCAL_KEY));

        // Look up the Host UUID (return it if found)
        if (!result.isEmpty() && result.one().has("host_id"))
        {
            return result.one().getUUID("host_id");
        }

        // ID not found, generate a new one, persist, and then return it.
        hostId = UUID.randomUUID();
        logger.warn("No host ID found, created {} (Note: This should happen exactly once per node).", hostId);
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        catch (RequestExecutionException e)
        {
            throw new AuthenticationException(e.toString());
        }

        if (result.isEmpty() || !BCrypt.checkpw(password, result.one().getString(SALTED_HASH)))
            throw new AuthenticationException("Username and/or password are incorrect");

        return new AuthenticatedUser(username);
    }
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    {
        String query = String.format("SELECT super FROM %s.%s WHERE name = '%s'", AUTH_KS, USERS_CF, escape(username));
        try
        {
            UntypedResultSet result = QueryProcessor.process(query, consistencyForUser(username));
            return !result.isEmpty() && result.one().getBoolean("super");
        }
        catch (RequestExecutionException e)
        {
            throw new RuntimeException(e);
        }
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        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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        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!");
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            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());
    }

    public static Collection<Token> getSavedTokens()
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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));
    }

    public static int incrementAndGetGeneration()
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    {
        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));
    }

    public static int incrementAndGetGeneration()
    {
        String req = "SELECT gossip_generation FROM system.%s WHERE key='%s'";
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