runtime/org.argeo.slc.support.simple/src/main/java/org/argeo/slc/log4j/SlcExecutionAppender.java

   1 /*
   2  * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.argeo.slc.log4j;
  18
  19 import java.util.Date;
  20
  21 import org.apache.log4j.AppenderSkeleton;
  22 import org.apache.log4j.Layout;
  23 import org.apache.log4j.Level;
  24 import org.apache.log4j.Logger;
  25 import org.apache.log4j.PatternLayout;
  26 import org.apache.log4j.spi.LoggingEvent;
  27 import org.argeo.slc.core.execution.ExecutionThread;
  28 import org.argeo.slc.core.execution.ProcessThreadGroup;
  29 import org.argeo.slc.process.SlcExecutionStep;
  30 import org.springframework.beans.factory.DisposableBean;
  31 import org.springframework.beans.factory.InitializingBean;
  32
  33 /** Not meant to be used directly in standard log4j config */
  34 public class SlcExecutionAppender extends AppenderSkeleton implements
  35                 InitializingBean, DisposableBean {
  36
  37         private Layout layout = null;
  38         private String pattern = "%m - %c%n";
  39         private Boolean onlyExecutionThread = true;
  40
  41         public void afterPropertiesSet() {
  42                 if (layout != null)
  43                         setLayout(layout);
  44                 else
  45                         setLayout(new PatternLayout(pattern));
  46                 Logger.getRootLogger().addAppender(this);
  47         }
  48
  49         @Override
  50         protected void append(LoggingEvent event) {
  51                 Thread currentThread = Thread.currentThread();
  52                 if (currentThread.getThreadGroup() instanceof ProcessThreadGroup) {
  53                         if (onlyExecutionThread
  54                                         && !(currentThread instanceof ExecutionThread))
  55                                 return;
  56
  57                         final String type;
  58                         if (event.getLevel().equals(Level.ERROR)
  59                                         || event.getLevel().equals(Level.FATAL))
  60                                 type = SlcExecutionStep.ERROR;
  61                         else if (event.getLevel().equals(Level.WARN))
  62                                 type = SlcExecutionStep.WARNING;
  63                         else if (event.getLevel().equals(Level.INFO))
  64                                 type = SlcExecutionStep.INFO;
  65                         else if (event.getLevel().equals(Level.DEBUG))
  66                                 type = SlcExecutionStep.DEBUG;
  67                         else if (event.getLevel().equals(Level.TRACE))
  68                                 type = SlcExecutionStep.TRACE;
  69                         else
  70                                 type = SlcExecutionStep.INFO;
  71
  72                         SlcExecutionStep step = new SlcExecutionStep(new Date(event
  73                                         .getTimeStamp()), type, layout.format(event));
  74
  75                         ((ProcessThreadGroup) currentThread.getThreadGroup())
  76                                         .dispatchAddStep(step);
  77                 }
  78         }
  79
  80         public void destroy() throws Exception {
  81                 Logger.getRootLogger().removeAppender(this);
  82         }
  83
  84         public void close() {
  85         }
  86
  87         public boolean requiresLayout() {
  88                 return false;
  89         }
  90
  91         public void setLayout(Layout layout) {
  92                 this.layout = layout;
  93         }
  94
  95         public void setPattern(String pattern) {
  96                 this.pattern = pattern;
  97         }
  98
  99         public void setOnlyExecutionThread(Boolean onlyExecutionThread) {
 100                 this.onlyExecutionThread = onlyExecutionThread;
 101         }
 102
 103 }