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# bindings/java/CMakeLists.txt
# Copyright (C) 2006 Andrew Ross
# Copyright (C) 2017-2019 Alan W. Irwin
#
# This file is part of PLplot.
#
# PLplot is free software; you can redistribute it and/or modify
# it under the terms of the GNU Library General Public License as published
# by the Free Software Foundation; version 2 of the License.
#
# PLplot is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public License
# along with PLplot; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
if(ENABLE_java)
# Swig generated java files. Order no longer matters since class
# dependencies are explicitly handled now.
set(
SWIG_JAVA_FILES
plplotjavacJNI.java
PLGraphicsIn.java
plplotjavacConstants.java
plplotjavac.java
)
# List of swig-generated + configured java files
set(
JAVA_GEN_FILES
config.java
${SWIG_JAVA_FILES}
)
# List of swig-generated + configured java files with full path names
# Need this otherwise cmake will look in the source directory for the
# .java files.
string(
REGEX REPLACE "([a-zA-z]*)\\.java"
"${CMAKE_CURRENT_BINARY_DIR}/\\1.java"
JAVA_GEN_FILES_FULL
"${JAVA_GEN_FILES}"
)
# Full pathnames for all java files.
set(
JAVA_FILES_FULL
${JAVA_GEN_FILES_FULL}
${CMAKE_CURRENT_SOURCE_DIR}/PLStream.java
${CMAKE_CURRENT_SOURCE_DIR}/PLCallbackMapform.java
${CMAKE_CURRENT_SOURCE_DIR}/PLCallbackLabel.java
${CMAKE_CURRENT_SOURCE_DIR}/PLCallbackCT.java
)
# Explicit full-path class dependencies for the foreach loop below which
# should build classes in the correct order regardless of whether it
# is a parallel build or not and regardless of the order of JAVA_FILES_FULL.
# These are hand-crafted dependencies based on scanning the appropriate
# Java sources. Apparently CMake has a java dependency scanner which
# might be good enough to do this task as well, but I have avoided it because
# I (AWI) am under the impression that CMake support of java is still in its
# infancy.
set(class_root ${CMAKE_CURRENT_BINARY_DIR}/plplot/core)
set(
${class_root}/plplotjavacJNI.class_DEPENDS
${class_root}/PLCallbackMapform.class
${class_root}/PLCallbackLabel.class
${class_root}/PLCallbackCT.class
)
set(
${class_root}/PLGraphicsIn.class_DEPENDS
${class_root}/plplotjavacJNI.class
)
set(
${class_root}/plplotjavacConstants.class_DEPENDS
${class_root}/plplotjavacJNI.class
)
set(
${class_root}/plplotjavac.class_DEPENDS
${class_root}/plplotjavacConstants.class
${class_root}/PLGraphicsIn.class
${class_root}/plplotjavacJNI.class
${class_root}/PLCallbackMapform.class
${class_root}/PLCallbackLabel.class
${class_root}/PLCallbackCT.class
)
set(
${class_root}/PLStream.class_DEPENDS
${class_root}/plplotjavacConstants.class
${class_root}/config.class
${class_root}/plplotjavac.class
${class_root}/PLCallbackMapform.class
${class_root}/PLCallbackLabel.class
${class_root}/PLCallbackCT.class
)
# This is currently the include list for swig, the C wrapper and the
# the java classpath. Not particular pretty...
set(java_interface_INCLUDE_PATHS
${CMAKE_SOURCE_DIR}
${CMAKE_SOURCE_DIR}/include
${CMAKE_SOURCE_DIR}/lib/qsastime
${CMAKE_CURRENT_BINARY_DIR}
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}/include
${CMAKE_BINARY_DIR}/lib/qsastime
${JAVA_INCLUDE_PATH}
${CMAKE_SOURCE_DIR}/bindings/swig-support
)
# On some systems JAVA_INCLUDE_PATH2 returns JAVA_INCLUDE_PATH2-NOTFOUND
if(JAVA_INCLUDE_PATH2)
set(java_interface_INCLUDE_PATHS
${java_interface_INCLUDE_PATHS}
${JAVA_INCLUDE_PATH2}
)
endif(JAVA_INCLUDE_PATH2)
include_directories(${java_interface_INCLUDE_PATHS})
# Can't use source file properties as we have to quote the flags in that
# case and it breaks swig. Doh! I would call this a cmake bug.
if(SWIG_JAVA_NOPGCPP)
#This version of swig supports the -nopgcpp option
set(CMAKE_SWIG_FLAGS -DPL_DOUBLE_INTERFACE -DSWIG_JAVA -package plplot.core -nopgcpp)
else(SWIG_JAVA_NOPGCPP)
set(CMAKE_SWIG_FLAGS -DPL_DOUBLE_INTERFACE -DSWIG_JAVA -package plplot.core)
endif(SWIG_JAVA_NOPGCPP)
set(CMAKE_SWIG_OUTDIR ${CMAKE_CURRENT_BINARY_DIR})
# This may be needed in future when we use CMake java support to build the
# class files, but it obviously is not correct now when we use custom commands
# to build the class files using file dependencies to keep things straight.
## set_source_files_properties(${JAVA_GEN_FILES_FULL} PROPERTIES GENERATED ON)
set(SWIG_MODULE_plplotjavac_wrap_EXTRA_DEPS
${CMAKE_SOURCE_DIR}/bindings/swig-support/plplotcapi.i)
set_source_files_properties(
plplotjavac.i
PROPERTIES SWIG_MODULE_NAME plplotjavac
)
# plplotjavac_wrap depends on the plplot library.
set(LIB_INSTALL_RPATH ${LIB_DIR})
# Create swig-generated java files and swig-generated C wrapper source
# code. Also, build that source code into a shared object (a.k.a. "dll")
# that can be dynamically loaded by java.
configure_library_build(plplotjavac_wrap java plplotjavac.i PLPLOT::plplot "${LIB_INSTALL_RPATH}" ${JAVAWRAPPER_DIR})
# Create config.java. Other generated java files created by swig above.
set(PLPLOTJAVAC_WRAP_DLL $<TARGET_FILE_NAME:PLPLOT::plplotjavac_wrap>)
configure_file_generate(
${CMAKE_CURRENT_SOURCE_DIR}/config.java.in
${CMAKE_CURRENT_BINARY_DIR}/config.java
@ONLY
)
set(JAVA_CLASSES)
foreach( srcfile ${JAVA_FILES_FULL} )
get_filename_component(fileroot ${srcfile} NAME_WE)
set(output_file ${CMAKE_CURRENT_BINARY_DIR}/plplot/core/${fileroot}.class)
list(APPEND JAVA_CLASSES ${output_file})
add_custom_command(
OUTPUT ${output_file}
COMMAND ${CMAKE_Java_COMPILER}
${JAVACFLAGS} -classpath ${CMAKE_CURRENT_BINARY_DIR} ${srcfile} -d ${CMAKE_CURRENT_BINARY_DIR}
DEPENDS ${srcfile} ${${output_file}_DEPENDS}
VERBATIM
)
endforeach( srcfile ${JAVA_FILES_FULL} )
add_custom_target(plplot_core ALL DEPENDS ${JAVA_CLASSES})
# Need to keep track of file dependencies since this is a custom target.
set_property(GLOBAL PROPERTY FILES_plplot_core ${JAVA_CLASSES})
# Ensure that swig is executed before we try to compile the java
# classes which file-depend (see above custom_command DEPENDS) on
# the java files created by swig (amongst others).
add_dependencies(plplot_core PLPLOT::plplotjavac_wrap)
# Installed as part of the example/java directory
#install(FILES ${CMAKE_BINARY_DIR}/plplot.jar DESTINATION ${JAR_DIR})
endif(ENABLE_java)
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