rpicms-android

LogWrapper.java (2194B)

---

 package de.nordgedanken.rpicms.common.logger;
 
 /**
  * Created by frank on 14.10.14.
  */
 import android.util.Log;
 
 /**
  * Helper class which wraps Android's native Log utility in the Logger interface.  This way
  * normal DDMS output can be one of the many targets receiving and outputting logs simultaneously.
  */
 public class LogWrapper implements LogNode {
 
     // For piping:  The next node to receive Log data after this one has done its work.
     private LogNode mNext;
 
     /**
      * Returns the next LogNode in the linked list.
      */
     public LogNode getNext() {
         return mNext;
     }
 
     /**
      * Sets the LogNode data will be sent to..
      */
     public void setNext(LogNode node) {
         mNext = node;
     }
 
     /**
      * Prints data out to the console using Android's native log mechanism.
      * @param priority Log level of the data being logged.  Verbose, Error, etc.
      * @param tag Tag for for the log data.  Can be used to organize log statements.
      * @param msg The actual message to be logged. The actual message to be logged.
      * @param tr If an exception was thrown, this can be sent along for the logging facilities
      *           to extract and print useful information.
      */
     @Override
     public void println(int priority, String tag, String msg, Throwable tr) {
         // There actually are log methods that don't take a msg parameter.  For now,
         // if that's the case, just convert null to the empty string and move on.
         String useMsg = msg;
         if (useMsg == null) {
             useMsg = "";
         }
 
         // If an exeption was provided, convert that exception to a usable string and attach
         // it to the end of the msg method.
         if (tr != null) {
             msg += "\n" + Log.getStackTraceString(tr);
         }
 
         // This is functionally identical to Log.x(tag, useMsg);
         // For instance, if priority were Log.VERBOSE, this would be the same as Log.v(tag, useMsg)
         Log.println(priority, tag, useMsg);
 
         // If this isn't the last node in the chain, move things along.
         if (mNext != null) {
             mNext.println(priority, tag, msg, tr);
         }
     }
 }