| 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 | } |