package thread.concurrencyCookbook.chapter5.recipe03;
import java.util.List;
import java.util.concurrent.ForkJoinPool;
import java.util.concurrent.TimeUnit;
import thread.concurrencyCookbook.chapter5.recipe03.FolderProcessor;
/**
* Main class of the example
*/
public class Main {
/**
* Main method of the example
*/
public static void main(String[] args) {
// Create the pool
ForkJoinPool pool=new ForkJoinPool();
// Create three FolderProcessor tasks for three diferent folders
FolderProcessor system=new FolderProcessor("C:\\Windows", "log");
FolderProcessor apps=new FolderProcessor("C:\\Program Files","log");
FolderProcessor documents=new FolderProcessor("C:\\Documents And Settings","log");
// Execute the three tasks in the pool
pool.execute(system);
pool.execute(apps);
pool.execute(documents);
// Write statistics of the pool until the three tasks end
do {
System.out.printf("******************************************\n");
System.out.printf("Main: Parallelism: %d\n",pool.getParallelism());
System.out.printf("Main: Active Threads: %d\n",pool.getActiveThreadCount());
System.out.printf("Main: Task Count: %d\n",pool.getQueuedTaskCount());
System.out.printf("Main: Steal Count: %d\n",pool.getStealCount());
System.out.printf("******************************************\n");
try {
TimeUnit.SECONDS.sleep(1);
} catch (InterruptedException e) {
e.printStackTrace();
}
} while ((!system.isDone())||(!apps.isDone())||(!documents.isDone()));
// Shutdown the pool
pool.shutdown();
// Write the number of results calculate by each task
List<String> results;
results=system.join();
System.out.printf("System: %d files found.\n",results.size());
results=apps.join();
System.out.printf("Apps: %d files found.\n",results.size());
results=documents.join();
System.out.printf("Documents: %d files found.\n",results.size());
}
}