From c9a0c00f05d82093d1aa548ec77f33c0d7d32eaa Mon Sep 17 00:00:00 2001
From: Heiko Strathmann <heiko.strathmann@gmail.com>
Date: Thu, 25 Feb 2016 13:00:29 +0000
Subject: [PATCH] add meta language java examples to test build

---
 examples/meta/java/CMakeLists.txt | 25 +++++++++++++++++--------
 1 file changed, 17 insertions(+), 8 deletions(-)

diff --git a/examples/meta/java/CMakeLists.txt b/examples/meta/java/CMakeLists.txt
index b6c6e6b5fe0..b339053a850 100644
--- a/examples/meta/java/CMakeLists.txt
+++ b/examples/meta/java/CMakeLists.txt
@@ -4,22 +4,31 @@ SET(CLASSPATH "${JBLAS}:${SHOGUN_JAR}:${CMAKE_CURRENT_BINARY_DIR}")
 SET(JAVAOPTS "-Xmx1024m")
 SET(JAVA_LIB_PATH "${JAVA_MODULAR_BUILD_DIR}")
 
-FOREACH(EXAMPLE_SRC ${EXAMPLES_SRC})
-	get_filename_component(EXAMPLE_NAME ${EXAMPLE_SRC} NAME_WE)
+# add test case for each generated example
+# (not generated yet so have to fake filenames from META_EXAMPLES list)
+FOREACH(META_EXAMPLE ${META_EXAMPLES})
+    # assume a structure <target_language>/<category>/listing.sg
+	STRING(REGEX REPLACE ".*/(.*).sg" "\\1" EXAMPLE_NAME ${META_EXAMPLE})
+	STRING(REGEX REPLACE ".*/(.*/.*).sg" "\\1" EXAMPLE_NAME_WITH_DIR ${META_EXAMPLE})
+	STRING(REGEX REPLACE "/" "-" EXAMPLE_NAME_WITH_DIR ${EXAMPLE_NAME_WITH_DIR})
+    STRING(REGEX REPLACE ".*/(.*)/.*.sg" "\\1" EXAMPLE_REL_DIR ${META_EXAMPLE})
 
-	ADD_CUSTOM_COMMAND(OUTPUT ${EXAMPLE_NAME}.class
+	ADD_CUSTOM_COMMAND(OUTPUT ${EXAMPLE_NAME_WITH_DIR}.class
 				  COMMAND ${Java_JAVAC_EXECUTABLE} -cp ${CLASSPATH}
-					-d ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/${EXAMPLE_SRC}
+					-d ${CMAKE_CURRENT_BINARY_DIR}/${EXAMPLE_REL_DIR} ${CMAKE_CURRENT_BINARY_DIR}/${EXAMPLE_REL_DIR}/${EXAMPLE_NAME}.java
 				  DEPENDS java_modular)
-	LIST(APPEND JAVA_EXAMPLES ${EXAMPLE_NAME}.class)
+	LIST(APPEND JAVA_EXAMPLES ${EXAMPLE_NAME_WITH_DIR}.class)
 
-	add_test(NAME generated_java_modular-${EXAMPLE_NAME}
+    # run test in source dir, to have access to "data" folder
+    # run class from binary dir though as it is generated there
+    # add class location to classpath to do that
+	add_test(NAME generated_java-${EXAMPLE_NAME_WITH_DIR}
 			WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 			COMMAND ${Java_JAVA_EXECUTABLE} ${JAVAOPTS}
-				-cp ${CLASSPATH}
+				-cp ${CLASSPATH}:${CMAKE_CURRENT_BINARY_DIR}/${EXAMPLE_REL_DIR}
 				-Djava.library.path=${JAVA_LIB_PATH} ${EXAMPLE_NAME})
 ENDFOREACH()
 
 add_custom_target(build_generated_java_examples ALL
 				 DEPENDS ${JAVA_EXAMPLES}
-				 COMMENT "Generated java examples")
\ No newline at end of file
+				 COMMENT "Compiled generated java examples")