git.gag.com Git - debian/openrocket/blob - src/net/sf/openrocket/logging/PrintStreamLogger.java

   1 package net.sf.openrocket.logging;
   2
   3 import java.io.PrintStream;
   4 import java.util.EnumMap;
   5
   6 /**
   7  * A logger that output log lines to various print streams depending on the log level.
   8  * By default output is logged nowhere.
   9  *
  10  * @author Sampo Niskanen <sampo.niskanen@iki.fi>
  11  */
  12 public class PrintStreamLogger extends LogHelper {
  13
  14         private static final EnumMap<LogLevel, PrintStream> output =
  15                 new EnumMap<LogLevel, PrintStream>(LogLevel.class);
  16
  17
  18         @Override
  19         public void log(LogLine line) {
  20                 PrintStream stream = output.get(line.getLevel());
  21                 if (stream != null) {
  22                         stream.println(line.toString());
  23                 }
  24         }
  25
  26
  27         public void setOutput(LogLevel level, PrintStream stream) {
  28                 if (level == null) {
  29                         throw new IllegalArgumentException("level="+level+" stream="+stream);
  30                 }
  31                 output.put(level, stream);
  32         }
  33
  34 }