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1 | /* |
2 | * Copyright (C) 2015 - EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com> | |
3 | * | |
4 | * This library is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU Lesser General Public License, version 2.1 only, | |
6 | * as published by the Free Software Foundation. | |
7 | * | |
8 | * This library is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License | |
11 | * for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU Lesser General Public License | |
14 | * along with this library; if not, write to the Free Software Foundation, | |
15 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
16 | */ | |
17 | ||
18 | package org.lttng.ust.agent.session; | |
19 | ||
20 | /** | |
21 | * Event filtering rule present in a tracing session. | |
22 | * | |
23 | * It typically comes from a "lttng enable-event" command, and contains a | |
24 | * domain, event name, log level and filter string. | |
25 | * | |
26 | * @author Alexandre Montplaisir | |
27 | */ | |
28 | public class EventRule { | |
29 | ||
30 | private final String eventName; | |
31 | private final LogLevelSelector logLevelSelector; | |
32 | private final String filterString; | |
33 | ||
34 | /** | |
35 | * Constructor. | |
36 | * | |
37 | * @param eventName | |
38 | * The name of the tracepoint | |
39 | * @param logLevelSelector | |
40 | * The log level of the event rule | |
41 | * @param filterString | |
42 | * The filtering string. May be null if there is no extra filter. | |
43 | */ | |
44 | public EventRule(String eventName, LogLevelSelector logLevelSelector, String filterString) { | |
45 | this.eventName = eventName; | |
46 | this.logLevelSelector = logLevelSelector; | |
47 | this.filterString = filterString; | |
48 | } | |
49 | ||
50 | /** | |
51 | * Get the event name of this rule. | |
52 | * | |
53 | * @return The event name | |
54 | */ | |
55 | public String getEventName() { | |
56 | return eventName; | |
57 | } | |
58 | ||
59 | /** | |
60 | * Get the log level filter configuration of the rule. | |
61 | * | |
62 | * @return The log level selector | |
63 | */ | |
64 | public LogLevelSelector getLogLevelSelector() { | |
65 | return logLevelSelector; | |
66 | } | |
67 | ||
68 | /** | |
69 | * Get the filter string associated with this rule. | |
70 | * | |
71 | * @return The filter string, may be null for no filter string. | |
72 | */ | |
73 | public String getFilterString() { | |
74 | return filterString; | |
75 | } | |
76 | ||
77 | // ------------------------------------------------------------------------ | |
78 | // Methods from Object | |
79 | // ------------------------------------------------------------------------ | |
80 | ||
81 | @Override | |
82 | public int hashCode() { | |
83 | final int prime = 31; | |
84 | int result = 1; | |
85 | result = prime * result + ((eventName == null) ? 0 : eventName.hashCode()); | |
86 | result = prime * result + ((filterString == null) ? 0 : filterString.hashCode()); | |
87 | result = prime * result + ((logLevelSelector == null) ? 0 : logLevelSelector.hashCode()); | |
88 | return result; | |
89 | } | |
90 | ||
91 | @Override | |
92 | public boolean equals(Object obj) { | |
93 | if (this == obj) { | |
94 | return true; | |
95 | } | |
96 | if (obj == null) { | |
97 | return false; | |
98 | } | |
99 | if (getClass() != obj.getClass()) { | |
100 | return false; | |
101 | } | |
102 | EventRule other = (EventRule) obj; | |
103 | ||
104 | if (eventName == null) { | |
105 | if (other.eventName != null) { | |
106 | return false; | |
107 | } | |
108 | } else if (!eventName.equals(other.eventName)) { | |
109 | return false; | |
110 | } | |
111 | /* else, continue */ | |
112 | ||
113 | if (filterString == null) { | |
114 | if (other.filterString != null) { | |
115 | return false; | |
116 | } | |
117 | } else if (!filterString.equals(other.filterString)) { | |
118 | return false; | |
119 | } | |
120 | /* else, continue */ | |
121 | ||
122 | if (logLevelSelector == null) { | |
123 | if (other.logLevelSelector != null) { | |
124 | return false; | |
125 | } | |
126 | } else if (!logLevelSelector.equals(other.logLevelSelector)) { | |
127 | return false; | |
128 | } | |
129 | /* else, continue */ | |
130 | ||
131 | return true; | |
132 | } | |
133 | ||
134 | } |