adam bien's blog

The release v0.0.3 of the porcupine [see also screencast] of the concurrency utility for Java EE 7 is available in maven central:

<dependency>
	<groupId>com.airhacks</groupId>
	<artifactId>porcupine</artifactId>
	<version>0.0.3</version>
</dependency>

This version introduces two minor conveniency features:

1. A custom configuration could be created more conveniently, partially overriding the defaults.

   
   import com.airhacks.porcupine.configuration.control.ExecutorConfigurator;
   import com.airhacks.porcupine.execution.control.ExecutorConfiguration;
   import javax.enterprise.inject.Specializes;
   
   @Specializes
   public class CustomExecutorConfigurator extends ExecutorConfigurator {
   
       @Override
       public ExecutorConfiguration forPipeline(String name) {
           if ("custom".equals(name)) {
               return new ExecutorConfiguration.Builder().
                       queueCapacity(1).
                       build();
           } else {
               return ExecutorConfiguration.defaultConfiguration();
           }
       }
   }
   
   
   

2. For all statistic entities, the method toString was implemented for nicer debugging output: Rejection{statistics=Statistics{pipelineName=moviesThreadPool, remainingQueueCapacity=0, completedTaskCount=3, activeThreadCount=1, largestThreadPoolSize=1, currentThreadPoolSize=1, totalNumberOfTasks=9, maximumPoolSize=1, rejectedExecutionHandlerName=(...), rejectedTasks=1}, taskClass=(...)}

See you at Java EE Workshops at Munich Airport, Terminal 2 or Virtual Dedicated Workshops / consulting. porcupine is used and discussed during the microservices workshop.