POC: SMTP Appender

backend/src/main/java/com/bakdata/conquery/util/SMTPAppenderFactory.java

@@ -0,0 +1,34 @@
+package com.bakdata.conquery.util;
+
+import ch.qos.logback.access.net.SMTPAppender;
+import ch.qos.logback.access.spi.IAccessEvent;
+import ch.qos.logback.classic.LoggerContext;
+import ch.qos.logback.core.Appender;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import io.dropwizard.logging.AbstractAppenderFactory;
+import io.dropwizard.logging.async.AsyncAppenderFactory;
+import io.dropwizard.logging.filter.LevelFilterFactory;
+import io.dropwizard.logging.layout.LayoutFactory;
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+@JsonTypeName("SMTP")
+public class SMTPAppenderFactory extends AbstractAppenderFactory<IAccessEvent> {
+
+	@Override
+	public Appender<IAccessEvent> build(LoggerContext context, String applicationName, LayoutFactory<IAccessEvent> layoutFactory, LevelFilterFactory<IAccessEvent> levelFilterFactory, AsyncAppenderFactory<IAccessEvent> asyncAppenderFactory) {
+		final SMTPAppender appender = new SMTPAppender();
+		appender.setName("cq-smtp-appender");
+
+		//TODO configure
+
+		appender.setContext(context);
+
+		appender.setLayout(buildLayout(context, layoutFactory));
+		appender.addFilter(levelFilterFactory.build(threshold));
+		getFilterFactories().forEach(f -> appender.addFilter(f.build()));
+
+		appender.start();
+		return wrapAsync(appender, asyncAppenderFactory);
+	}
+}