1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*-
* ============LICENSE_START=======================================================
* PROJECT
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights
* reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package org.onap.dcae.common;
import com.att.nsa.clock.SaClock;
import com.att.nsa.logging.LoggingContext;
import com.att.nsa.logging.LoggingContextFactory;
import com.att.nsa.logging.log4j.EcompFields;
import java.util.UUID;
public class VESLogger {
public static final String REQUEST_ID = "requestId";
// Common LoggingContext
private static LoggingContext commonLC;
// Thread-specific LoggingContext
private static LoggingContext threadLC;
/**
* Returns the common LoggingContext instance that is the base context for
* all subsequent instances.
*
* @return the common LoggingContext
*/
public static LoggingContext getCommonLoggingContext() {
if (commonLC == null) {
commonLC = new LoggingContextFactory.Builder().build();
final UUID uuid = UUID.randomUUID();
commonLC.put(REQUEST_ID, uuid.toString());
}
return commonLC;
}
/**
* Get a logging context for the current thread that's based on the common
* logging context. Populate the context with context-specific values.
*
* @param aUuid uuid for request id
* @return a LoggingContext for the current thread
*/
public static LoggingContext getLoggingContextForThread(UUID aUuid) {
// note that this operation requires everything from the common context
// to be (re)copied into the target context. That seems slow, but it
// actually
// helps prevent the thread from overwriting supposedly common data. It
// also
// should be fairly quick compared with the overhead of handling the
// actual
// service call.
threadLC = new LoggingContextFactory.Builder().withBaseContext(getCommonLoggingContext()).build();
// Establish the request-specific UUID, as long as we are here...
threadLC.put(REQUEST_ID, aUuid.toString());
threadLC.put(EcompFields.kEndTimestamp, SaClock.now());
return threadLC;
}
/**
* Get a logging context for the current thread that's based on the common
* logging context. Populate the context with context-specific values.
*
* @param aUuid uuid for request id
* @return a LoggingContext for the current thread
*/
public static LoggingContext getLoggingContextForThread(String aUuid) {
// note that this operation requires everything from the common context
// to be (re)copied into the target context. That seems slow, but it
// actually
// helps prevent the thread from overwriting supposedly common data. It
// also
// should be fairly quick compared with the overhead of handling the
// actual
// service call.
threadLC = new LoggingContextFactory.Builder().withBaseContext(getCommonLoggingContext()).build();
// Establish the request-specific UUID, as long as we are here...
threadLC.put(REQUEST_ID, aUuid);
threadLC.put("statusCode", "COMPLETE");
threadLC.put(EcompFields.kEndTimestamp, SaClock.now());
return threadLC;
}
}
|
