Add a Log4j 2.x Java agent

[lttng-ust.git] / doc / examples / java-log4j2-basic / Makefile

diff --git a/doc/examples/java-log4j2-basic/Makefile b/doc/examples/java-log4j2-basic/Makefile
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+# SPDX-License-Identifier: LGPL-2.1-only
+#
+# Copyright (C) 2014 Christian Babeux <christian.babeux@efficios.com>
+#
+# This Makefile is not using automake so that users may see how to build a
+# program with tracepoint provider probes as stand-alone shared objects.
+#
+# This makefile is purposefully kept simple to support GNU and BSD make.
+#
+
+# Required JAR files for Log4j 2.x
+JARFILE_LOG4J2=lttng-ust-agent-log4j2.jar
+JARFILE_COMMON=lttng-ust-agent-common.jar
+
+# If system classpath is empty, try to guess log4j location
+ifeq "$(CLASSPATH)" ""
+       CLASSPATH=/usr/local/share/java/log4j.jar:/usr/share/java/log4j.jar
+endif
+
+# Check if the top level makefile overrides the Log4j Jar file's path.
+ifeq "$(JAVA_CLASSPATH_OVERRIDE_LOG4J2)" ""
+       LOG4J2_CP = /usr/local/share/java/$(JARFILE_LOG4J2):/usr/share/java/$(JARFILE_LOG4J2)
+else
+       LOG4J2_CP = $(JAVA_CLASSPATH_OVERRIDE_LOG4J2)/$(JARFILE_LOG4J2)
+endif
+
+# Check if the top level makefile overrides the Common Jar file's path.
+ifeq "$(JAVA_CLASSPATH_OVERRIDE_COMMON)" ""
+       COMMON_CP = /usr/local/share/java/$(JARFILE_COMMON):/usr/share/java/$(JARFILE_COMMON)
+else
+       COMMON_CP = $(JAVA_CLASSPATH_OVERRIDE_COMMON)/$(JARFILE_COMMON)
+endif
+
+JFLAGS = -g
+JC = javac -classpath "$(CLASSPATH):$(LOG4J2_CP):$(COMMON_CP):."
+.SUFFIXES: .java .class
+.java.class:
+       $(JC) $(JFLAGS) $*.java
+
+CLASSES = HelloLog4j2.java
+
+all: classes
+
+classes: $(CLASSES:.java=.class)
+
+.PHONY: clean
+clean:
+       $(RM) $(CLASSES:.java=.class)