-
Notifications
You must be signed in to change notification settings - Fork 215
/
LogbackLoggingFacade.java
93 lines (75 loc) · 3.17 KB
/
LogbackLoggingFacade.java
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
/*
* Copyright (c) 2017 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.base.service.devops;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.stream.StreamSupport;
import javax.annotation.Nonnull;
import org.eclipse.ditto.base.api.devops.ImmutableLoggerConfig;
import org.eclipse.ditto.base.api.devops.LogLevel;
import org.eclipse.ditto.base.api.devops.LoggerConfig;
import org.eclipse.ditto.base.api.devops.LoggingFacade;
import org.slf4j.LoggerFactory;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
/**
* Implementation of {@link org.eclipse.ditto.base.api.devops.LoggingFacade} for logback.
*/
public final class LogbackLoggingFacade implements LoggingFacade {
private LogbackLoggingFacade() {
// instantiation only via newInstance()
}
/**
* Returns a new {@code LogbackLoggingFacade} instance.
*
* @return the LogbackLoggingFacade instance.
*/
public static LogbackLoggingFacade newInstance() {
return new LogbackLoggingFacade();
}
@Override
public boolean setLogLevel(@Nonnull final LoggerConfig loggerConfig) {
final Level level = Level.valueOf(loggerConfig.getLevel().getIdentifier());
final String loggerName = loggerConfig.getLogger().orElse(org.slf4j.Logger.ROOT_LOGGER_NAME);
final Logger logger = (Logger) LoggerFactory.getLogger(loggerName);
logger.setLevel(level);
return logger.isEnabledFor(level);
}
@Override
@Nonnull
public List<LoggerConfig> getLoggerConfig() {
final Logger rootLogger = (Logger) LoggerFactory.getLogger(org.slf4j.Logger.ROOT_LOGGER_NAME);
final List<Logger> loggerList = rootLogger.getLoggerContext().getLoggerList();
return loggerConfigsFor(loggerList);
}
@Override
@Nonnull
public List<LoggerConfig> getLoggerConfig(@Nonnull final Iterable<String> loggerNames) {
final List<Logger> loggerList = StreamSupport.stream(loggerNames.spliterator(), false)
.map(logger -> (Logger) LoggerFactory.getLogger(logger))
.toList();
return loggerConfigsFor(loggerList);
}
private List<LoggerConfig> loggerConfigsFor(final Iterable<Logger> loggers) {
final List<LoggerConfig> loggerConfigList = new ArrayList<>();
loggers.forEach(logger -> {
final Level level = Optional.ofNullable(logger.getLevel()).orElse(Level.OFF);
final Optional<LogLevel> logLevelOptional = LogLevel.forIdentifier(level.toString());
logLevelOptional
.filter(logLevel -> !logLevel.equals(LogLevel.OFF)) // filter out the "off" loggers
.ifPresent(logLevel -> loggerConfigList.add(ImmutableLoggerConfig.of(logLevel, logger.getName())));
});
return loggerConfigList;
}
}