--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/goodjava/logger/ThreadLocalAppender.java	Sun Mar 01 13:47:02 2020 -0700
@@ -0,0 +1,22 @@
+package goodjava.logger;
+
+
+public class ThreadLocalAppender implements Appender {
+	private final Appender defaultAppender;
+	public final ThreadLocal<Appender> threadLocal = new ThreadLocal<Appender>();
+
+	public ThreadLocalAppender(Appender defaultAppender) {
+		this.defaultAppender = defaultAppender;
+	}
+
+	public void append(LoggingEvent event) {
+		Appender appender = threadLocal.get();
+		if( appender == null )
+			appender = defaultAppender;
+		appender.append(event);
+	}
+
+	public void close() {
+		defaultAppender.close();
+	}
+}