| 1 | /* |
| 2 | * Copyright (C) 2013 - David Goulet <dgoulet@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.jul; |
| 19 | |
| 20 | import java.lang.String; |
| 21 | |
| 22 | import java.util.logging.Handler; |
| 23 | import java.util.logging.LogRecord; |
| 24 | |
| 25 | class LTTngLogHandler extends Handler { |
| 26 | |
| 27 | private final Boolean isRoot; |
| 28 | |
| 29 | public LTTngLogHandler(Boolean isRoot) { |
| 30 | super(); |
| 31 | this.isRoot = isRoot; |
| 32 | /* Initialize LTTng UST tracer. */ |
| 33 | try { |
| 34 | System.loadLibrary("lttng-ust-jul-jni"); //$NON-NLS-1$ |
| 35 | } catch (SecurityException e) { |
| 36 | e.printStackTrace(); |
| 37 | } catch (UnsatisfiedLinkError e) { |
| 38 | e.printStackTrace(); |
| 39 | } catch (NullPointerException e) { |
| 40 | /* Should never happen */ |
| 41 | e.printStackTrace(); |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | public Boolean isRoot() { |
| 46 | return this.isRoot; |
| 47 | } |
| 48 | |
| 49 | @Override |
| 50 | public void close() throws SecurityException {} |
| 51 | |
| 52 | @Override |
| 53 | public void flush() {} |
| 54 | |
| 55 | @Override |
| 56 | public void publish(LogRecord record) { |
| 57 | /* |
| 58 | * Specific tracepoint designed for JUL events. The source class of the |
| 59 | * caller is used for the event name, the raw message is taken, the |
| 60 | * loglevel of the record and the thread ID. |
| 61 | */ |
| 62 | if (this.isRoot) { |
| 63 | tracepointS(record.getMessage(), |
| 64 | record.getLoggerName(), record.getSourceClassName(), |
| 65 | record.getSourceMethodName(), record.getMillis(), |
| 66 | record.getLevel().intValue(), record.getThreadID()); |
| 67 | } else { |
| 68 | tracepointU(record.getMessage(), |
| 69 | record.getLoggerName(), record.getSourceClassName(), |
| 70 | record.getSourceMethodName(), record.getMillis(), |
| 71 | record.getLevel().intValue(), record.getThreadID()); |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | /* Use for a user session daemon. */ |
| 76 | private native void tracepointU(String msg, |
| 77 | String logger_name, |
| 78 | String class_name, |
| 79 | String method_name, |
| 80 | long millis, |
| 81 | int log_level, |
| 82 | int thread_id); |
| 83 | |
| 84 | /* Use for a root session daemon. */ |
| 85 | private native void tracepointS(String msg, |
| 86 | String logger_name, |
| 87 | String class_name, |
| 88 | String method_name, |
| 89 | long millis, |
| 90 | int log_level, |
| 91 | int thread_id); |
| 92 | } |