| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| function(check_java_class_exists CLASS CLASSPATH VAR) |
| if(NOT DEFINED "${VAR}" OR "x${${VAR}}" STREQUAL "x${VAR}") |
| message(CHECK_START "Looking for Java class ${CLASS} in ${CLASSPATH}") |
| |
| set(OUTPUT_PATH "${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/check_java_class_exists.dir") |
| file(MAKE_DIRECTORY "${OUTPUT_PATH}") |
| |
| set(GENERATED_SOURCE "${OUTPUT_PATH}/Check.java") |
| file(WRITE "${GENERATED_SOURCE}" "import ${CLASS};") |
| |
| execute_process( |
| COMMAND ${Java_JAVAC_EXECUTABLE} |
| ${CMAKE_JAVA_COMPILE_FLAGS} |
| -classpath "${CLASSPATH}" |
| -d ${OUTPUT_PATH} |
| ${GENERATED_SOURCE} |
| RESULT_VARIABLE exit_code |
| OUTPUT_QUIET |
| ERROR_QUIET |
| OUTPUT_FILE "${OUTPUT_PATH}/check.stdout" |
| ERROR_FILE "${OUTPUT_PATH}/check.stderr" |
| ) |
| |
| if (${exit_code} EQUAL 0) |
| message(CHECK_PASS "found") |
| set(${VAR} 1 CACHE INTERNAL "Have Java class ${CLASS}") |
| else() |
| message(CHECK_FAIL "not found") |
| set(${VAR} 0 CACHE INTERNAL "Have Java class ${CLASS}") |
| endif() |
| endif() |
| endfunction() |