minor change in naming of threads created by the library

src/main/java/com/beanit/openiec61850/internal/NamedDefaultThreadFactory.java

@@ -19,25 +19,25 @@ import java.util.concurrent.atomic.AtomicInteger;
 
 public class NamedDefaultThreadFactory implements ThreadFactory {
 
-  private static final AtomicInteger factoryCounter = new AtomicInteger(1);
   private final AtomicInteger threadCounter = new AtomicInteger(1);
   private final String namePrefix;
   private ThreadFactory backingDefaultThreadFactory = Executors.defaultThreadFactory();
 
-  public NamedDefaultThreadFactory(String namePrefix) {
-    this.namePrefix = namePrefix;
+  /**
+   * Creates a thread factory with the given pool name as a name prefix. Threads created will have
+   * the name {@code <poolName>-thread-<thread-counter>}. A common pool name is of format {@code
+   * <pool-name>-<pool-id>}.
+   *
+   * @param poolName the thread pool name
+   */
+  public NamedDefaultThreadFactory(String poolName) {
+    this.namePrefix = poolName + "-thread-";
   }
 
   @Override
   public Thread newThread(Runnable r) {
     Thread thread = backingDefaultThreadFactory.newThread(r);
-    String threadName =
-        namePrefix
-            + "-"
-            + factoryCounter.getAndIncrement()
-            + "-thread-"
-            + threadCounter.getAndIncrement();
-    thread.setName(threadName);
+    thread.setName(namePrefix + threadCounter.getAndIncrement());
     return thread;
   }
 }