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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.slf4j;
20  
21  import java.util.Optional;
22  
23  import org.apache.maven.logwrapper.LogLevelRecorder;
24  import org.apache.maven.logwrapper.MavenSlf4jWrapperFactory;
25  import org.slf4j.Logger;
26  import org.slf4j.simple.SimpleLoggerFactory;
27  
28  /**
29   * LogFactory for Maven which can create a simple logger or one which, if set, fails the build on a severity threshold.
30   */
31  public class MavenLoggerFactory extends SimpleLoggerFactory implements MavenSlf4jWrapperFactory {
32      private LogLevelRecorder logLevelRecorder = null;
33  
34      public MavenLoggerFactory() {}
35  
36      @Override
37      public void setLogLevelRecorder(LogLevelRecorder logLevelRecorder) {
38          if (this.logLevelRecorder != null) {
39              throw new IllegalStateException("LogLevelRecorder has already been set.");
40          }
41          this.logLevelRecorder = logLevelRecorder;
42          reset();
43      }
44  
45      @Override
46      public Optional<LogLevelRecorder> getLogLevelRecorder() {
47          return Optional.ofNullable(logLevelRecorder);
48      }
49  
50      protected Logger createLogger(String name) {
51          if (logLevelRecorder == null) {
52              return new MavenSimpleLogger(name);
53          } else {
54              return new MavenFailOnSeverityLogger(name, logLevelRecorder);
55          }
56      }
57  }