SequentialMode.java

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  /* SequentialMode.java, see http://ultramessaging.github.io/UMExamples/sequential_mode/java/ */
  
  import com.latencybusters.lbm.*;
  import java.lang.*;
  
  public class SequentialMode {
      public static void main(String[] args) throws LBMException {
          LBMContext ctx = null; /* Context object: container for UM "instance". */
          
          /* Initialization: create necessary UM objects. */
          try {
              LBMContextAttributes ctxAttr = new LBMContextAttributes();
              ctxAttr.setValue("operational_mode", "sequential");
              ctx = new LBMContext(ctxAttr);
          }
          catch(LBMException ex)
          {
              System.err.println("Error initializing LBM objects: " + ex.toString());
              System.exit(1);
          }
  
          (new Thread(new SeqThread(ctx))).start();
  
          while(true) 
          { 
              try {
                  Thread.sleep(1000);
              }
              catch(InterruptedException tex) {
                  System.err.println("Error Thread.sleep interrupted: " + tex.toString());
                  System.exit(1);
              }
          }
      } /* main */
  
      public static class SeqThread implements Runnable
      {
          private LBMContext _ctx;
  
          public SeqThread(LBMContext ctx)
          {
              _ctx = ctx;
          }
  
          public void run()
          {
              while (true)
              {
                  try {
                      _ctx.processEvents(500);
                  }
                  catch(LBMException ex)
                  {
                      System.err.println("Error processing context events: " + ex.toString());
                      System.exit(1);
                  }
              }
          }
      }
  }