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1 /*
2  * Copyright (c) 2015, Intel Corporation
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without modification,
6  * are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice, this
9  * list of conditions and the following disclaimer.
10  *
11  * 2. Redistributions in binary form must reproduce the above copyright notice,
12  * this list of conditions and the following disclaimer in the documentation and/or
13  * other materials provided with the distribution.
14  *
15  * 3. Neither the name of the copyright holder nor the names of its contributors
16  * may be used to endorse or promote products derived from this software without
17  * specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 #pragma once
31 
32 #include <string>
33 #include <vector>
34 
35 /** Class used to send commands to a parameter framework.
36  * @see the help command for more information on which command can be sent.
37  * @see ParameterMgrFullConnector::createCommandHandler to create an instance.
38  *
39  * This interface is primary designed to send commands without using a
40  * tcp socket for test purposes.
41  *
42  * Note: the fact that this class must be deleted by the client is because the
43  *       PF interface is not c++11.
44  * TODO: When the interface will transition to C++11, return directly the
45  *       CommandHandlerWrapper as this base class only use is to hide the
46  *       move semantic that is not supported in C++03.
47  */
48 class CommandHandlerInterface
49 {
50 public:
51     /** Send a command synchronously and receive it's result.
52      *
53      * @see CParameterMgr::gastRemoteCommandParserItems for the list of possible
54      *      command and their description.
55      *
56      * @param[in] command the command to execute.
57      * @param[in] arguments the command arguments.
58      * @param[out] output the result of the command.
59      *
60      * return true in the command executed succesfuly,
61      *        false otherwise.
62      */
63     virtual bool process(const std::string &command, const std::vector<std::string> &arguments,
64                          std::string &output) = 0;
65 
~CommandHandlerInterface()66     virtual ~CommandHandlerInterface(){};
67 };
68