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

   1 package org.argeo.slc.log4j;
   2
   3 import org.apache.log4j.AppenderSkeleton;
   4 import org.apache.log4j.Layout;
   5 import org.apache.log4j.Logger;
   6 import org.apache.log4j.PatternLayout;
   7 import org.apache.log4j.spi.LoggingEvent;
   8 import org.argeo.slc.core.execution.ExecutionThread;
   9 import org.argeo.slc.process.SlcExecutionStep;
  10 import org.springframework.beans.factory.DisposableBean;
  11 import org.springframework.beans.factory.InitializingBean;
  12
  13 /** Not meant to be used directly in standard log4j config */
  14 public class SlcExecutionAppender extends AppenderSkeleton implements
  15                 InitializingBean, DisposableBean {
  16
  17         private Layout layout = null;
  18         private String pattern = "%m - %c%n";
  19
  20         public void afterPropertiesSet() {
  21                 if (layout != null)
  22                         setLayout(layout);
  23                 else
  24                         setLayout(new PatternLayout(pattern));
  25                 Logger.getRootLogger().addAppender(this);
  26         }
  27
  28         @Override
  29         protected void append(LoggingEvent event) {
  30                 if (!(Thread.currentThread() instanceof ExecutionThread))
  31                         return;
  32
  33                 ExecutionThread executionThread = (ExecutionThread) Thread
  34                                 .currentThread();
  35                 executionThread.dispatchAddStep(new SlcExecutionStep(layout
  36                                 .format(event)));
  37         }
  38
  39         public void destroy() throws Exception {
  40                 Logger.getRootLogger().removeAppender(this);
  41         }
  42
  43         public void close() {
  44         }
  45
  46         public boolean requiresLayout() {
  47                 return false;
  48         }
  49
  50         public void setLayout(Layout layout) {
  51                 this.layout = layout;
  52         }
  53
  54         public void setPattern(String pattern) {
  55                 this.pattern = pattern;
  56         }
  57
  58 }