| 1 | /* |
| 2 | * Copyright (C) 2015 - EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com> |
| 3 | * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com> |
| 4 | * |
| 5 | * This library is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU Lesser General Public License, version 2.1 only, |
| 7 | * as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This library is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License |
| 12 | * for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU Lesser General Public License |
| 15 | * along with this library; if not, write to the Free Software Foundation, |
| 16 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | */ |
| 18 | |
| 19 | package org.lttng.ust.agent.client; |
| 20 | |
| 21 | import org.lttng.ust.agent.AbstractLttngAgent; |
| 22 | |
| 23 | /** |
| 24 | * Interface to represent all commands sent from the session daemon to the Java |
| 25 | * agent. The agent is then expected to execute the command and provide a |
| 26 | * response. |
| 27 | * |
| 28 | * @author Alexandre Montplaisir |
| 29 | */ |
| 30 | interface ISessiondCommand { |
| 31 | |
| 32 | enum CommandType { |
| 33 | |
| 34 | /** List logger(s). */ |
| 35 | CMD_LIST(1), |
| 36 | /** Enable logger by name. */ |
| 37 | CMD_ENABLE(2), |
| 38 | /** Disable logger by name. */ |
| 39 | CMD_DISABLE(3), |
| 40 | /** Registration done */ |
| 41 | CMD_REG_DONE(4); |
| 42 | |
| 43 | private int code; |
| 44 | |
| 45 | private CommandType(int c) { |
| 46 | code = c; |
| 47 | } |
| 48 | |
| 49 | public int getCommandType() { |
| 50 | return code; |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * Execute the command handler's action on the specified tracing agent. |
| 56 | * |
| 57 | * @param agent |
| 58 | * The agent on which to execute the command |
| 59 | * @return If the command completed successfully or not |
| 60 | */ |
| 61 | public ILttngAgentResponse execute(AbstractLttngAgent<?> agent); |
| 62 | } |