2 * SPDX-License-Identifier: LGPL-2.1-only
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>
10 #include "org_lttng_ust_agent_log4j2_LttngLog4j2Api.h"
11 #include "lttng_ust_log4j_tp.h"
12 #include "../common/lttng_ust_context.h"
15 * Those are an exact map from the class org.apache.log4j.Level.
17 enum loglevel_log4j1
{
18 LOGLEVEL_LOG4J1_OFF
= INT32_MAX
,
19 LOGLEVEL_LOG4J1_FATAL
= 50000,
20 LOGLEVEL_LOG4J1_ERROR
= 40000,
21 LOGLEVEL_LOG4J1_WARN
= 30000,
22 LOGLEVEL_LOG4J1_INFO
= 20000,
23 LOGLEVEL_LOG4J1_DEBUG
= 10000,
24 LOGLEVEL_LOG4J1_TRACE
= 5000,
25 LOGLEVEL_LOG4J1_ALL
= INT32_MIN
,
29 * Those are an exact map from the class
30 * org.apache.logging.log4j.spi.StandardLevel.
32 enum loglevel_log4j2
{
33 LOGLEVEL_LOG4J2_OFF
= 0,
34 LOGLEVEL_LOG4J2_FATAL
= 100,
35 LOGLEVEL_LOG4J2_ERROR
= 200,
36 LOGLEVEL_LOG4J2_WARN
= 300,
37 LOGLEVEL_LOG4J2_INFO
= 400,
38 LOGLEVEL_LOG4J2_DEBUG
= 500,
39 LOGLEVEL_LOG4J2_TRACE
= 600,
40 LOGLEVEL_LOG4J2_ALL
= INT32_MAX
,
44 * The integer values of the loglevels has obviously changed in log4j2,
45 * translate them to the values of log4j1 since they are exposed in the API of
48 * Custom loglevels might pose a problem when using ranges.
50 static jint
loglevel_2x_to_1x(jint loglevel
)
53 case LOGLEVEL_LOG4J2_OFF
:
54 return LOGLEVEL_LOG4J1_OFF
;
55 case LOGLEVEL_LOG4J2_FATAL
:
56 return LOGLEVEL_LOG4J1_FATAL
;
57 case LOGLEVEL_LOG4J2_ERROR
:
58 return LOGLEVEL_LOG4J1_ERROR
;
59 case LOGLEVEL_LOG4J2_WARN
:
60 return LOGLEVEL_LOG4J1_WARN
;
61 case LOGLEVEL_LOG4J2_INFO
:
62 return LOGLEVEL_LOG4J1_INFO
;
63 case LOGLEVEL_LOG4J2_DEBUG
:
64 return LOGLEVEL_LOG4J1_DEBUG
;
65 case LOGLEVEL_LOG4J2_TRACE
:
66 return LOGLEVEL_LOG4J1_TRACE
;
67 case LOGLEVEL_LOG4J2_ALL
:
68 return LOGLEVEL_LOG4J1_ALL
;
70 /* Handle custom loglevels. */
76 * Tracepoint used by Java applications using the log4j 2.x handler.
78 JNIEXPORT
void JNICALL
Java_org_lttng_ust_agent_log4j2_LttngLog4j2Api_tracepointWithContext(JNIEnv
*env
,
79 jobject jobj
__attribute__((unused
)),
89 jbyteArray context_info_entries
,
90 jbyteArray context_info_strings
)
93 const char *msg_cstr
= (*env
)->GetStringUTFChars(env
, message
, &iscopy
);
94 const char *logger_name_cstr
= (*env
)->GetStringUTFChars(env
, loggerName
, &iscopy
);
95 const char *class_name_cstr
= (*env
)->GetStringUTFChars(env
, className
, &iscopy
);
96 const char *method_name_cstr
= (*env
)->GetStringUTFChars(env
, methodName
, &iscopy
);
97 const char *file_name_cstr
= (*env
)->GetStringUTFChars(env
, fileName
, &iscopy
);
98 const char *thread_name_cstr
= (*env
)->GetStringUTFChars(env
, threadName
, &iscopy
);
99 signed char *context_info_entries_array
;
100 signed char *context_info_strings_array
;
103 * Write these to the TLS variables, so that the UST callbacks in
104 * lttng_ust_context.c can access them.
106 context_info_entries_array
= (*env
)->GetByteArrayElements(env
, context_info_entries
, &iscopy
);
107 lttng_ust_context_info_tls
.ctx_entries
= (struct lttng_ust_jni_ctx_entry
*) context_info_entries_array
;
108 lttng_ust_context_info_tls
.ctx_entries_len
= (*env
)->GetArrayLength(env
, context_info_entries
);
109 context_info_strings_array
= (*env
)->GetByteArrayElements(env
, context_info_strings
, &iscopy
);
110 lttng_ust_context_info_tls
.ctx_strings
= context_info_strings_array
;
111 lttng_ust_context_info_tls
.ctx_strings_len
= (*env
)->GetArrayLength(env
, context_info_strings
);
113 lttng_ust_tracepoint(lttng_log4j
, event
, msg_cstr
, logger_name_cstr
,
114 class_name_cstr
, method_name_cstr
, file_name_cstr
,
115 lineNumber
, timeStamp
, loglevel_2x_to_1x(logLevel
), thread_name_cstr
);
117 lttng_ust_context_info_tls
.ctx_entries
= NULL
;
118 lttng_ust_context_info_tls
.ctx_entries_len
= 0;
119 lttng_ust_context_info_tls
.ctx_strings
= NULL
;
120 lttng_ust_context_info_tls
.ctx_strings_len
= 0;
121 (*env
)->ReleaseStringUTFChars(env
, message
, msg_cstr
);
122 (*env
)->ReleaseStringUTFChars(env
, loggerName
, logger_name_cstr
);
123 (*env
)->ReleaseStringUTFChars(env
, className
, class_name_cstr
);
124 (*env
)->ReleaseStringUTFChars(env
, methodName
, method_name_cstr
);
125 (*env
)->ReleaseStringUTFChars(env
, fileName
, file_name_cstr
);
126 (*env
)->ReleaseStringUTFChars(env
, threadName
, thread_name_cstr
);
127 (*env
)->ReleaseByteArrayElements(env
, context_info_entries
, context_info_entries_array
, 0);
128 (*env
)->ReleaseByteArrayElements(env
, context_info_strings
, context_info_strings_array
, 0);