// Fig. 23.11: Consumer.java
// Consumer with a run method that loops, reading 10 values from buffer.
import java.security.SecureRandom;

public class Consumer implements Runnable {
   private static final SecureRandom generator = new SecureRandom();
   private final Buffer sharedLocation; // reference to shared object

   // constructor
   public Consumer(Buffer sharedLocation) {
      this.sharedLocation = sharedLocation;
   }

   // read sharedLocation's value 10 times and sum the values
   @Override
   public void run() {                                       
      int sum = 0;

      for (int count = 1; count <= 10; count++) {
         // sleep 0 to 3 seconds, read value from buffer and add to sum
         try {
            Thread.sleep(generator.nextInt(3000));
            sum += sharedLocation.blockingGet();          
         } 
         catch (InterruptedException exception) {
            Thread.currentThread().interrupt(); 
         } 
      } 

      System.out.printf("%n%s %d%n%s%n", 
         "Consumer read values totaling", sum, "Terminating Consumer");
   } 
} 


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