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1 | /* |
2 | * SPDX-License-Identifier: LGPL-2.1-only | |
3 | * | |
4 | * Copyright (C) 2016-2022 EfficiOS Inc. | |
5 | * Copyright (C) 2016 Alexandre Montplaisir <alexmonthy@efficios.com> | |
6 | * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
7 | */ | |
8 | ||
9 | #define _LGPL_SOURCE | |
10 | #include "org_lttng_ust_agent_log4j2_LttngLog4j2Api.h" | |
11 | #include "lttng_ust_log4j_tp.h" | |
495b8381 | 12 | #include "lttng_ust_log4j2_tp.h" |
464c4756 MJ |
13 | #include "../common/lttng_ust_context.h" |
14 | ||
15 | /* | |
16 | * Those are an exact map from the class org.apache.log4j.Level. | |
17 | */ | |
18 | enum loglevel_log4j1 { | |
19 | LOGLEVEL_LOG4J1_OFF = INT32_MAX, | |
20 | LOGLEVEL_LOG4J1_FATAL = 50000, | |
21 | LOGLEVEL_LOG4J1_ERROR = 40000, | |
22 | LOGLEVEL_LOG4J1_WARN = 30000, | |
23 | LOGLEVEL_LOG4J1_INFO = 20000, | |
24 | LOGLEVEL_LOG4J1_DEBUG = 10000, | |
25 | LOGLEVEL_LOG4J1_TRACE = 5000, | |
26 | LOGLEVEL_LOG4J1_ALL = INT32_MIN, | |
27 | }; | |
28 | ||
29 | /* | |
30 | * Those are an exact map from the class | |
31 | * org.apache.logging.log4j.spi.StandardLevel. | |
32 | */ | |
33 | enum loglevel_log4j2 { | |
34 | LOGLEVEL_LOG4J2_OFF = 0, | |
35 | LOGLEVEL_LOG4J2_FATAL = 100, | |
36 | LOGLEVEL_LOG4J2_ERROR = 200, | |
37 | LOGLEVEL_LOG4J2_WARN = 300, | |
38 | LOGLEVEL_LOG4J2_INFO = 400, | |
39 | LOGLEVEL_LOG4J2_DEBUG = 500, | |
40 | LOGLEVEL_LOG4J2_TRACE = 600, | |
41 | LOGLEVEL_LOG4J2_ALL = INT32_MAX, | |
42 | }; | |
43 | ||
b6659287 MJ |
44 | /* |
45 | * Convert a custom Log4j 2.x loglevel to its equivalent 1.x standard loglevel. | |
46 | */ | |
47 | static jint loglevel_custom_2x_to_standard_1x(jint loglevel) | |
48 | { | |
49 | if (loglevel <= LOGLEVEL_LOG4J2_OFF) { | |
50 | return LOGLEVEL_LOG4J1_OFF; | |
51 | } else if (loglevel <= LOGLEVEL_LOG4J2_FATAL) { | |
52 | return LOGLEVEL_LOG4J1_FATAL; | |
53 | } else if (loglevel <= LOGLEVEL_LOG4J2_ERROR) { | |
54 | return LOGLEVEL_LOG4J1_ERROR; | |
55 | } else if (loglevel <= LOGLEVEL_LOG4J2_WARN) { | |
56 | return LOGLEVEL_LOG4J1_WARN; | |
57 | } else if (loglevel <= LOGLEVEL_LOG4J2_INFO) { | |
58 | return LOGLEVEL_LOG4J1_INFO; | |
59 | } else if (loglevel <= LOGLEVEL_LOG4J2_DEBUG) { | |
60 | return LOGLEVEL_LOG4J1_DEBUG; | |
61 | } else if (loglevel <= LOGLEVEL_LOG4J2_TRACE) { | |
62 | return LOGLEVEL_LOG4J1_TRACE; | |
63 | } else { | |
64 | return LOGLEVEL_LOG4J1_ALL; | |
65 | } | |
66 | } | |
67 | ||
464c4756 MJ |
68 | /* |
69 | * The integer values of the loglevels has obviously changed in log4j2, | |
70 | * translate them to the values of log4j1 since they are exposed in the API of | |
71 | * lttng-tools. | |
464c4756 MJ |
72 | */ |
73 | static jint loglevel_2x_to_1x(jint loglevel) | |
74 | { | |
75 | switch (loglevel) { | |
76 | case LOGLEVEL_LOG4J2_OFF: | |
77 | return LOGLEVEL_LOG4J1_OFF; | |
78 | case LOGLEVEL_LOG4J2_FATAL: | |
79 | return LOGLEVEL_LOG4J1_FATAL; | |
80 | case LOGLEVEL_LOG4J2_ERROR: | |
81 | return LOGLEVEL_LOG4J1_ERROR; | |
82 | case LOGLEVEL_LOG4J2_WARN: | |
83 | return LOGLEVEL_LOG4J1_WARN; | |
84 | case LOGLEVEL_LOG4J2_INFO: | |
85 | return LOGLEVEL_LOG4J1_INFO; | |
86 | case LOGLEVEL_LOG4J2_DEBUG: | |
87 | return LOGLEVEL_LOG4J1_DEBUG; | |
88 | case LOGLEVEL_LOG4J2_TRACE: | |
89 | return LOGLEVEL_LOG4J1_TRACE; | |
90 | case LOGLEVEL_LOG4J2_ALL: | |
91 | return LOGLEVEL_LOG4J1_ALL; | |
92 | default: | |
93 | /* Handle custom loglevels. */ | |
b6659287 | 94 | return loglevel_custom_2x_to_standard_1x(loglevel); |
464c4756 MJ |
95 | } |
96 | } | |
97 | ||
98 | /* | |
99 | * Tracepoint used by Java applications using the log4j 2.x handler. | |
100 | */ | |
101 | JNIEXPORT void JNICALL Java_org_lttng_ust_agent_log4j2_LttngLog4j2Api_tracepointWithContext(JNIEnv *env, | |
102 | jobject jobj __attribute__((unused)), | |
103 | jstring message, | |
104 | jstring loggerName, | |
105 | jstring className, | |
106 | jstring methodName, | |
107 | jstring fileName, | |
108 | jint lineNumber, | |
109 | jlong timeStamp, | |
110 | jint logLevel, | |
111 | jstring threadName, | |
112 | jbyteArray context_info_entries, | |
495b8381 MJ |
113 | jbyteArray context_info_strings, |
114 | jboolean log4j1Compat) | |
464c4756 MJ |
115 | { |
116 | jboolean iscopy; | |
117 | const char *msg_cstr = (*env)->GetStringUTFChars(env, message, &iscopy); | |
118 | const char *logger_name_cstr = (*env)->GetStringUTFChars(env, loggerName, &iscopy); | |
119 | const char *class_name_cstr = (*env)->GetStringUTFChars(env, className, &iscopy); | |
120 | const char *method_name_cstr = (*env)->GetStringUTFChars(env, methodName, &iscopy); | |
121 | const char *file_name_cstr = (*env)->GetStringUTFChars(env, fileName, &iscopy); | |
122 | const char *thread_name_cstr = (*env)->GetStringUTFChars(env, threadName, &iscopy); | |
123 | signed char *context_info_entries_array; | |
124 | signed char *context_info_strings_array; | |
125 | ||
126 | /* | |
127 | * Write these to the TLS variables, so that the UST callbacks in | |
128 | * lttng_ust_context.c can access them. | |
129 | */ | |
130 | context_info_entries_array = (*env)->GetByteArrayElements(env, context_info_entries, &iscopy); | |
131 | lttng_ust_context_info_tls.ctx_entries = (struct lttng_ust_jni_ctx_entry *) context_info_entries_array; | |
132 | lttng_ust_context_info_tls.ctx_entries_len = (*env)->GetArrayLength(env, context_info_entries); | |
133 | context_info_strings_array = (*env)->GetByteArrayElements(env, context_info_strings, &iscopy); | |
134 | lttng_ust_context_info_tls.ctx_strings = context_info_strings_array; | |
135 | lttng_ust_context_info_tls.ctx_strings_len = (*env)->GetArrayLength(env, context_info_strings); | |
136 | ||
495b8381 MJ |
137 | if (log4j1Compat) { |
138 | /* | |
139 | * Log4j 1.x compatible tracepoint with loglevel conversion. | |
140 | */ | |
141 | lttng_ust_tracepoint(lttng_log4j, event, msg_cstr, logger_name_cstr, | |
142 | class_name_cstr, method_name_cstr, file_name_cstr, | |
143 | lineNumber, timeStamp, loglevel_2x_to_1x(logLevel), thread_name_cstr); | |
144 | } else { | |
145 | /* | |
146 | * Log4j 2.x tracepoint with native loglevel. | |
147 | */ | |
148 | lttng_ust_tracepoint(lttng_log4j2, event, msg_cstr, logger_name_cstr, | |
149 | class_name_cstr, method_name_cstr, file_name_cstr, | |
150 | lineNumber, timeStamp, logLevel, thread_name_cstr); | |
151 | } | |
464c4756 MJ |
152 | |
153 | lttng_ust_context_info_tls.ctx_entries = NULL; | |
154 | lttng_ust_context_info_tls.ctx_entries_len = 0; | |
155 | lttng_ust_context_info_tls.ctx_strings = NULL; | |
156 | lttng_ust_context_info_tls.ctx_strings_len = 0; | |
157 | (*env)->ReleaseStringUTFChars(env, message, msg_cstr); | |
158 | (*env)->ReleaseStringUTFChars(env, loggerName, logger_name_cstr); | |
159 | (*env)->ReleaseStringUTFChars(env, className, class_name_cstr); | |
160 | (*env)->ReleaseStringUTFChars(env, methodName, method_name_cstr); | |
161 | (*env)->ReleaseStringUTFChars(env, fileName, file_name_cstr); | |
162 | (*env)->ReleaseStringUTFChars(env, threadName, thread_name_cstr); | |
163 | (*env)->ReleaseByteArrayElements(env, context_info_entries, context_info_entries_array, 0); | |
164 | (*env)->ReleaseByteArrayElements(env, context_info_strings, context_info_strings_array, 0); | |
165 | } |