Package org.apache.cassandra.cql3.statements

Examples of org.apache.cassandra.cql3.statements.IndexPropDefs

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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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    {
        if (row.cf == null)
            return Collections.emptyMap();

        Map<String, CFMetaData> cfms = new HashMap<String, CFMetaData>();
        UntypedResultSet results = QueryProcessor.resultify("SELECT * FROM system.schema_columnfamilies", row);
        for (UntypedResultSet.Row result : results)
        {
            CFMetaData cfm = CFMetaData.fromSchema(result);
            cfms.put(cfm.cfName, cfm);
        }
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    public static UUID getLocalHostId()
    {
        UUID hostId = null;

        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.
        hostId = UUID.randomUUID();
        logger.warn("No host ID found, created {} (Note: This should happen exactly once per node).", hostId);
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    public static boolean isSuperuser(String username)
    {
        String query = String.format("SELECT super FROM %s.%s WHERE name = '%s'", AUTH_KS, USERS_CF, escape(username));
        try
        {
            UntypedResultSet result = QueryProcessor.process(query);
            return !result.isEmpty() && result.one().getBoolean("super");
        }
        catch (RequestExecutionException e)
        {
            throw new RuntimeException(e);
        }
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  • org.antlr.runtime.CharStream
  • org.antlr.runtime.CommonTokenStream
  • org.antlr.runtime.Token
  • org.antlr.runtime.TokenStream
  • org.apache.cassandra.auth.Auth
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