Package org.apache.cassandra.transport.messages

Examples of org.apache.cassandra.transport.messages.QueryMessage

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            // the coordinator log in the trace. Since the duration is the last thing the coordinator log, that's
            // what we check to know if the trace is "complete" (again, it may not contain the log of replicas).
            while (duration == Integer.MIN_VALUE && tries <= MAX_TRIES) {
                ++tries;

                ResultSetFuture sessionsFuture = session.executeQuery(new QueryMessage(String.format(SELECT_SESSIONS_FORMAT, traceId), ConsistencyLevel.DEFAULT_CASSANDRA_CL), Query.DEFAULT);
                ResultSetFuture eventsFuture = session.executeQuery(new QueryMessage(String.format(SELECT_EVENTS_FORMAT, traceId), ConsistencyLevel.DEFAULT_CASSANDRA_CL), Query.DEFAULT);

                Row sessRow = sessionsFuture.get().one();
                if (sessRow != null && !sessRow.isNull("duration")) {

                    requestType = sessRow.getString("request");
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            if (table != null)
                whereClause += " AND columnfamily_name = '" + table + "'";
        }

        DefaultResultSetFuture ksFuture = table == null
                                        ? new DefaultResultSetFuture(null, new QueryMessage(SELECT_KEYSPACES + whereClause, ConsistencyLevel.DEFAULT_CASSANDRA_CL))
                                        : null;
        DefaultResultSetFuture cfFuture = new DefaultResultSetFuture(null, new QueryMessage(SELECT_COLUMN_FAMILIES + whereClause, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
        DefaultResultSetFuture colsFuture = new DefaultResultSetFuture(null, new QueryMessage(SELECT_COLUMNS + whereClause, ConsistencyLevel.DEFAULT_CASSANDRA_CL));

        if (ksFuture != null)
            connection.write(ksFuture);
        connection.write(cfFuture);
        connection.write(colsFuture);
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    }

    private void refreshNodeListAndTokenMap(Connection connection) throws ConnectionException, BusyConnectionException, ExecutionException, InterruptedException {
        // Make sure we're up to date on nodes and tokens

        DefaultResultSetFuture peersFuture = new DefaultResultSetFuture(null, new QueryMessage(SELECT_PEERS, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
        DefaultResultSetFuture localFuture = new DefaultResultSetFuture(null, new QueryMessage(SELECT_LOCAL, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
        connection.write(peersFuture);
        connection.write(localFuture);

        String partitioner = null;
        Map<Host, Collection<String>> tokenMap = new HashMap<Host, Collection<String>>();
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        long start = System.nanoTime();
        long elapsed = 0;
        while (elapsed < MAX_SCHEMA_AGREEMENT_WAIT_MS) {

            DefaultResultSetFuture peersFuture = new DefaultResultSetFuture(null, new QueryMessage(SELECT_SCHEMA_PEERS, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
            DefaultResultSetFuture localFuture = new DefaultResultSetFuture(null, new QueryMessage(SELECT_SCHEMA_LOCAL, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
            connection.write(peersFuture);
            connection.write(localFuture);

            Set<UUID> versions = new HashSet<UUID>();
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        try {
            logger.trace("[{}] Setting keyspace {}", name, keyspace);
            long timeout = factory.getConnectTimeoutMillis();
            // Note: we quote the keyspace below, because the name is the one coming from Cassandra, so it's in the right case already
            Future future = write(new QueryMessage("USE \"" + keyspace + "\"", ConsistencyLevel.DEFAULT_CASSANDRA_CL));
            Message.Response response = Uninterruptibles.getUninterruptibly(future, timeout, TimeUnit.MILLISECONDS);
            switch (response.type) {
                case RESULT:
                    this.keyspace = keyspace;
                    break;
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        Message.Request request = callback.request();
        if (retryConsistencyLevel != null) {
            org.apache.cassandra.db.ConsistencyLevel cl = ConsistencyLevel.toCassandraCL(retryConsistencyLevel);
            if (request instanceof QueryMessage) {
                QueryMessage qm = (QueryMessage)request;
                if (qm.consistency != cl)
                    request = new QueryMessage(qm.query, cl);
            }
            else if (request instanceof ExecuteMessage) {
                ExecuteMessage em = (ExecuteMessage)request;
                if (em.consistency != cl)
                    request = new ExecuteMessage(em.statementId, em.values, cl);
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            // the coordinator log in the trace. Since the duration is the last thing the coordinator log, that's
            // what we check to know if the trace is "complete" (again, it may not contain the log of replicas).
            while (duration == Integer.MIN_VALUE && tries <= MAX_TRIES) {
                ++tries;

                ResultSetFuture sessionsFuture = session.executeQuery(new QueryMessage(String.format(SELECT_SESSIONS_FORMAT, traceId), ConsistencyLevel.DEFAULT_CASSANDRA_CL), Query.DEFAULT);
                ResultSetFuture eventsFuture = session.executeQuery(new QueryMessage(String.format(SELECT_EVENTS_FORMAT, traceId), ConsistencyLevel.DEFAULT_CASSANDRA_CL), Query.DEFAULT);

                Row sessRow = sessionsFuture.get().one();
                if (sessRow != null && !sessRow.isNull("duration")) {

                    requestType = sessRow.getString("request");
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        execute(msg);
    }

    public ResultMessage execute(String query, ConsistencyLevel consistency)
    {
        Message.Response msg = execute(new QueryMessage(query, consistency));
        assert msg instanceof ResultMessage;
        return (ResultMessage)msg;
    }
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        return execute(query, Collections.<ByteBuffer>emptyList(), consistency);
    }

    public ResultMessage execute(String query, List<ByteBuffer> values, ConsistencyLevel consistencyLevel)
    {
        Message.Response msg = execute(new QueryMessage(query, QueryOptions.forInternalCalls(consistencyLevel, values)));
        assert msg instanceof ResultMessage;
        return (ResultMessage)msg;
    }
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        execute(msg);
    }

    public ResultMessage execute(String query, ConsistencyLevel consistency)
    {
        Message.Response msg = execute(new QueryMessage(query, consistency));
        assert msg instanceof ResultMessage;
        return (ResultMessage)msg;
    }
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Related Classes of org.apache.cassandra.transport.messages.QueryMessage

  • com.datastax.driver.core.Connection
  • com.datastax.driver.core.ControlConnection
  • com.datastax.driver.core.QueryTrace
  • com.datastax.driver.core.RequestHandler
  • com.datastax.driver.core.RetryingCallback
  • org.apache.cassandra.cql3.QueryOptions
  • org.apache.cassandra.transport.Client
  • org.apache.cassandra.transport.SimpleClient
  • java.util.UUID
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