void getJavaProperties()

in src/main/cpp/launcher/windows/src/JavaUtils.c [283:330]
38 lines of code
8 McCabe index (conditional complexity)

void getJavaProperties(WCHAR * location, LauncherProperties * props, JavaProperties ** javaProps) {
    WCHAR *testJavaClass  = props->testJVMClass;
    WCHAR *javaExecutable = getJavaResource(location, JAVA_EXE_SUFFIX);
    WCHAR *libDirectory   = getJavaResource(location, JAVA_LIB_SUFFIX);
    
    if(fileExists(javaExecutable) && testJavaClass!=NULL && isDirectory(libDirectory)) {
        WCHAR * command = NULL;
        HANDLE hRead;
        HANDLE hWrite;
        
        writeMessageA(props, OUTPUT_LEVEL_DEBUG, 0, "... java hierarchy there", 1);
        // <location>\bin\java.exe exists

        
        appendCommandLineArgument(&command, javaExecutable);
        appendCommandLineArgument(&command, L"-classpath");
        appendCommandLineArgument(&command, props->testJVMFile->resolved);
        appendCommandLineArgument(&command, testJavaClass);
        
        
        CreatePipe(&hRead, &hWrite, NULL, 0);
        // Start the child process.
        executeCommand(props, command, NULL, JAVA_VERIFICATION_PROCESS_TIMEOUT, hWrite, INVALID_HANDLE_VALUE, JAVA_VERIFICATION_PROCESS_PRIORITY);
        if(props->status!= ERROR_ON_EXECUTE_PROCESS && props->status!= ERROR_PROCESS_TIMEOUT) {
            char * output = readHandle(hRead);
            writeMessageA(props, OUTPUT_LEVEL_DEBUG, 0, "           output :\n", 0);
            writeMessageA(props, OUTPUT_LEVEL_DEBUG, 0, output, 1);
            
            props->status = getJavaPropertiesFromOutput(props, output, javaProps);
            if(props->status == ERROR_OK) {
                (*javaProps)->javaHome = appendStringW(NULL, location);
                (*javaProps)->javaExe  = appendStringW(NULL, javaExecutable);
            }
            FREE(output);
        } else if(props->status == ERROR_PROCESS_TIMEOUT) {
            // java verification process finished by time out
            props->status = ERROR_INPUTOUPUT;
        }
        FREE(command);
        CloseHandle(hWrite);
        CloseHandle(hRead);
    } else {
        writeMessageA(props, OUTPUT_LEVEL_DEBUG, 0, "... not a java hierarchy", 1);
        props->status = ERROR_INPUTOUPUT;
    }
    FREE(libDirectory);
    FREE(javaExecutable);
}