Add support to propagate ONOS log to Kafka with KafkaAppender in log4j2
- new OSGi Bundle to define extra imports for log4j2
- update OSGiWrapper to support fragment-host tag + bugfix
- add kafka-clients to onos-dependencies package
- add example of how to propagate log to Kafka via KafkaAppender
- bugfix to org.ops4j.pax.logging.cfg
Change-Id: I89992936101a48c6452082bf23c7133c20aa0b48
diff --git a/tools/package/log4j2-extra/BUILD b/tools/package/log4j2-extra/BUILD
new file mode 100644
index 0000000..d931f30
--- /dev/null
+++ b/tools/package/log4j2-extra/BUILD
@@ -0,0 +1,28 @@
+load("//tools/build/bazel:osgi_java_library.bzl", "wrapped_osgi_jar")
+
+# This OSGi bundle is needed to import extra packages on log4j2 library
+
+# To include other packages, specify them as comma separated list.
+# As reference for packages that can be imported see:
+# https://github.com/ops4j/org.ops4j.pax.logging/blob/master/pax-logging-log4j2-extra/osgi.bnd
+IMPORT_PACKAGES = "org.apache.kafka.clients.producer,org.apache.kafka.common.serialization"
+
+# An empty OSGi jar bundle including a Manifest that will be merged with
+# the specified fragment_host bundle.
+wrapped_osgi_jar(
+ name = "onos-log4j2-extra",
+ fragment_host = "org.ops4j.pax.logging.pax-logging-log4j2",
+ generate_pom = False,
+ import_packages = IMPORT_PACKAGES,
+ jar = ":empty-log4j2-extra-jar",
+ visibility = ["//visibility:public"],
+ deps = [],
+)
+
+# An empty jar so we can wrap it inside an OSGi bundle.
+# The parameter resource_strip_prefix is needed to not export packages in the OSGi bundle.
+java_library(
+ name = "empty-log4j2-extra-jar",
+ resource_strip_prefix = "tools/package/log4j2-extra",
+ resources = ["empty.txt"],
+)