Package org.apache.cassandra.cql3

Examples of org.apache.cassandra.cql3.UntypedResultSet$FromResultSet

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    private void replayBatch(UUID id)
    {
        logger.debug("Replaying batch {}", id);

        UntypedResultSet result = process("SELECT written_at, data FROM %s.%s WHERE id = %s", Keyspace.SYSTEM_KS, SystemKeyspace.BATCHLOG_CF, id);
        if (result.isEmpty())
            return;

        try
        {
            UntypedResultSet.Row batch = result.one();
            replaySerializedMutations(batch.getBytes("data"), batch.getLong("written_at"));
        }
        catch (IOException e)
        {
            logger.warn("Skipped batch replay of {} due to {}", id, e);
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    public Set<Permission> authorize(AuthenticatedUser user, IResource resource)
    {
        if (user.isSuper())
            return Permission.ALL;

        UntypedResultSet result;
        try
        {
            ResultMessage.Rows rows = authorizeStatement.execute(QueryState.forInternalCalls(),
                                                                 new QueryOptions(ConsistencyLevel.ONE,
                                                                                  Lists.newArrayList(ByteBufferUtil.bytes(user.getName()),
                                                                                                     ByteBufferUtil.bytes(resource.getName()))));
            result = new UntypedResultSet(rows.result);
        }
        catch (RequestValidationException e)
        {
            throw new AssertionError(e); // not supposed to happen
        }
        catch (RequestExecutionException e)
        {
            logger.warn("CassandraAuthorizer failed to authorize {} for {}", user, resource);
            return Permission.NONE;
        }

        if (result.isEmpty() || !result.one().has(PERMISSIONS))
            return Permission.NONE;

        Set<Permission> permissions = EnumSet.noneOf(Permission.class);
        for (String perm : result.one().getSet(PERMISSIONS, UTF8Type.instance))
            permissions.add(Permission.valueOf(perm));
        return permissions;
    }
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    // Called after a resource is removed (DROP KEYSPACE, DROP TABLE, etc.).
    public void revokeAll(IResource droppedResource)
    {

        UntypedResultSet rows;
        try
        {
            // TODO: switch to secondary index on 'resource' once https://issues.apache.org/jira/browse/CASSANDRA-5125 is resolved.
            rows = process(String.format("SELECT username FROM %s.%s WHERE resource = '%s' ALLOW FILTERING",
                                         Auth.AUTH_KS,
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        String password = credentials.get(PASSWORD_KEY);
        if (password == null)
            throw new AuthenticationException(String.format("Required key '%s' is missing", PASSWORD_KEY));

        UntypedResultSet result;
        try
        {
            ResultMessage.Rows rows = authenticateStatement.execute(QueryState.forInternalCalls(),
                                                                    new QueryOptions(consistencyForUser(username),
                                                                                     Lists.newArrayList(ByteBufferUtil.bytes(username))));
            result = new UntypedResultSet(rows.result);
        }
        catch (RequestValidationException e)
        {
            throw new AssertionError(e); // not supposed to happen
        }
        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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     * @param username Username to query.
     * @return true is the user is a superuser, false if they aren't or don't exist at all.
     */
    public static boolean isSuperuser(String username)
    {
        UntypedResultSet result = selectUser(username);
        return !result.isEmpty() && result.one().getBoolean("super");
    }
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        try
        {
            ResultMessage.Rows rows = selectUserStatement.execute(QueryState.forInternalCalls(),
                                                                  new QueryOptions(consistencyForUser(username),
                                                                                   Lists.newArrayList(ByteBufferUtil.bytes(username))));
            return new UntypedResultSet(rows.result);
        }
        catch (RequestValidationException e)
        {
            throw new AssertionError(e); // not supposed to happen
        }
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    }

    public static PaxosState loadPaxosState(ByteBuffer key, CFMetaData metadata)
    {
        String req = "SELECT * FROM system.%s WHERE row_key = 0x%s AND cf_id = %s";
        UntypedResultSet results = processInternal(String.format(req, PAXOS_CF, ByteBufferUtil.bytesToHex(key), metadata.cfId));
        if (results.isEmpty())
            return new PaxosState(key, metadata);
        UntypedResultSet.Row row = results.one();
        Commit promised = row.has("in_progress_ballot")
                        ? new Commit(key, row.getUUID("in_progress_ballot"), EmptyColumns.factory.create(metadata))
                        : Commit.emptyCommit(key, metadata);
        // either we have both a recently accepted ballot and update or we have neither
        Commit accepted = row.has("proposal")
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     * @param generation the generation number for the sstable
     */
    public static RestorableMeter getSSTableReadMeter(String keyspace, String table, int generation)
    {
        String cql = "SELECT * FROM %s WHERE keyspace_name='%s' and columnfamily_name='%s' and generation=%d";
        UntypedResultSet results = processInternal(String.format(cql,
                                                                 SSTABLE_ACTIVITY_CF,
                                                                 keyspace,
                                                                 table,
                                                                 generation));

        if (results.isEmpty())
            return new RestorableMeter();

        UntypedResultSet.Row row = results.one();
        double m15rate = row.getDouble("rate_15m");
        double m120rate = row.getDouble("rate_120m");
        return new RestorableMeter(m15rate, m120rate);
    }
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     * @return unfinished compactions, grouped by keyspace/columnfamily pair.
     */
    public static SetMultimap<Pair<String, String>, Integer> getUnfinishedCompactions()
    {
        String req = "SELECT * FROM system.%s";
        UntypedResultSet resultSet = processInternal(String.format(req, COMPACTION_LOG));

        SetMultimap<Pair<String, String>, Integer> unfinishedCompactions = HashMultimap.create();
        for (UntypedResultSet.Row row : resultSet)
        {
            String keyspace = row.getString("keyspace_name");
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        processInternal(String.format(req, COMPACTION_HISTORY_CF, UUIDGen.getTimeUUID().toString(), ksname, cfname, compactedAt, bytesIn, bytesOut, FBUtilities.toString(rowsMerged)));
    }

    public static TabularData getCompactionHistory() throws OpenDataException
    {
        UntypedResultSet queryResultSet = processInternal("SELECT * from system.compaction_history");
        return CompactionHistoryTabularData.from(queryResultSet);
    }
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Related Classes of org.apache.cassandra.cql3.UntypedResultSet$FromResultSet

  • 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
  • org.apache.cassandra.auth.PasswordAuthenticator
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