Commit | Line | Data |
---|---|---|
27dbdc00 | 1 | /* |
c0c0989a | 2 | * SPDX-License-Identifier: LGPL-2.1-only |
27dbdc00 | 3 | * |
c0c0989a MJ |
4 | * Copyright (C) 2015 EfficiOS Inc. |
5 | * Copyright (C) 2015 Alexandre Montplaisir <alexmonthy@efficios.com> | |
27dbdc00 AM |
6 | */ |
7 | ||
8 | package org.lttng.ust.agent.context; | |
9 | ||
10 | /** | |
11 | * Context-retrieving object specified by the application to extract | |
12 | * application-specific context information, which can then be passed on to the | |
13 | * Java agents and saved to a trace. | |
14 | * | |
15 | * Retriever objects should be registered to the {@link ContextInfoManager} to | |
16 | * make them available to the LTTng agents. | |
17 | * | |
18 | * @author Alexandre Montplaisir | |
19 | */ | |
20 | public interface IContextInfoRetriever { | |
21 | ||
22 | /** | |
23 | * Retrieve a piece of context information from the application, identified | |
24 | * by a key. | |
25 | * | |
26 | * @param key | |
27 | * The key identifying the context information | |
28 | * @return The context information. | |
29 | */ | |
30 | Object retrieveContextInfo(String key); | |
31 | } |