find_package(Java COMPONENTS Development REQUIRED)
find_package(JNI REQUIRED)
include(UseJava)

set(java_srcs
  java/com/ceph/crush/Bucket.java
  java/com/ceph/fs/CephAlreadyMountedException.java
  java/com/ceph/fs/CephFileAlreadyExistsException.java
  java/com/ceph/fs/CephFileExtent.java
  java/com/ceph/fs/CephMount.java
  java/com/ceph/fs/CephNativeLoader.java
  java/com/ceph/fs/CephNotDirectoryException.java
  java/com/ceph/fs/CephNotMountedException.java
  java/com/ceph/fs/CephPoolException.java
  java/com/ceph/fs/CephStat.java
  java/com/ceph/fs/CephStatVFS.java)

# note: for the -source 1.5 builds, we add
#   -Xlint:-options
# to get rid of the warning
#   warning: [options] bootstrap class path not set in conjunction with -source 1.5
# as per
#   https://blogs.oracle.com/darcy/entry/bootclasspath_older_source
set(CMAKE_JAVA_COMPILE_FLAGS "-source" "1.5" "-target" "1.5" "-Xlint:-options")
add_jar(libcephfs ${java_srcs})
install_jar(libcephfs share/java)
get_property(libcephfs_jar TARGET libcephfs PROPERTY JAR_FILE)

set(java_h native/com_ceph_fs_CephMount.h)
add_custom_command(
  OUTPUT ${java_h}
  COMMAND ${Java_JAVAH_EXECUTABLE} -classpath ${libcephfs_jar} -jni -o ${CMAKE_CURRENT_BINARY_DIR}/${java_h} com.ceph.fs.CephMount)
add_custom_target(
  jni-header
  DEPENDS ${java_h})
add_dependencies(jni-header libcephfs)

find_jar(JUNIT_JAR
  NAMES junit junit4
  PATHS "/usr/share/java")
if(JUNIT_JAR)
  set(CMAKE_JAVA_INCLUDE_PATH ${JUNIT_JAR} ${libcephfs_jar})
  set(java_test_srcs
    test/com/ceph/fs/CephAllTests.java
    test/com/ceph/fs/CephDoubleMountTest.java
    test/com/ceph/fs/CephMountCreateTest.java
    test/com/ceph/fs/CephMountTest.java
    test/com/ceph/fs/CephUnmountedTest.java)
  add_jar(libcephfs-test ${java_test_srcs})
  add_dependencies(libcephfs-test libcephfs)
  install_jar(libcephfs-test share/java)
endif(JUNIT_JAR)

add_subdirectory(native)

add_custom_target(java DEPENDS
  libcephfs.jar
  libcephfs_jni)