added node.js

Author: sy-c

CMakeLists.txt

@@ -334,6 +334,21 @@ if(SWIG_FOUND)
     install(FILES ${CMAKE_CURRENT_BINARY_DIR}/infoLoggerForGo.go DESTINATION ${CMAKE_INSTALL_LIBDIR})
   endif()  
 
+  #library for Javascript / node.js
+  find_program(NODE_EXECUTABLE node)
+  get_filename_component(NODE_DIR ${NODE_EXECUTABLE} DIRECTORY)
+  find_path(NODEJS_INCLUDE_DIRS NAMES node.h PATHS ${Nodejs_ROOT} ${Nodejs_ROOT}/include ${NODE_DIR}/../include/node)
+  if (NODEJS_INCLUDE_DIRS)
+    message("Bindings for node.js will be generated")
+    message("Using NODEJS_INCLUDE_DIRS=${NODEJS_INCLUDE_DIRS}")
+    set(CMAKE_SWIG_FLAGS -module infoLoggerForNodejs -v8)
+    swig_add_library(infoLoggerForNodejs LANGUAGE javascript SOURCES src/infoLogger.i  ${INFOLOGGER_LIB_OBJECTS})
+    target_include_directories(${SWIG_MODULE_infoLoggerForNodejs_REAL_NAME} PRIVATE ${INFOLOGGER_INCLUDE_DIRS} ${NODEJS_INCLUDE_DIRS})
+    target_compile_definitions(${SWIG_MODULE_infoLoggerForNodejs_REAL_NAME} PRIVATE -DBUILDING_NODE_EXTENSION)
+    set_target_properties(${SWIG_MODULE_infoLoggerForNodejs_REAL_NAME} PROPERTIES OUTPUT_NAME infoLogger SUFFIX ".node")
+    install(TARGETS ${SWIG_MODULE_infoLoggerForNodejs_REAL_NAME} DESTINATION ${CMAKE_INSTALL_LIBDIR})
+  endif()
+
 endif()
 
 

doc/README.md

@@ -216,11 +216,12 @@ The InfoLogger library allows to inject messages directly from programs, as show
       
     Usually, one will only take care of defining the per-message messageOptions struct and a context with appropriate Facility field set, all other being set automatically.
    
- * InfoLogger library is also available for: Tcl, Python, Go.
+ * InfoLogger library is also available for: Tcl, Python, Go, Node.js.
    It allows to log message from scripting languages. A simplified subset of the InfoLogger C++ API is made available through SWIG-generated modules.
    Details of the functions accessible from the scripting interface are provided in [a separate document](scriptingAPI.md).
    
 
+
 ## Configuration
 
 * Description and example of parameters for each InfoLogger component can be found in /opt/o2-InfoLogger/etc/*.cfg.

doc/scriptingAPI.md

@@ -87,5 +87,18 @@ Example usage is shown below. Library files listed there are available from the
       }
     ```
 
+* **Node.js**
+  * Library files: `infoLogger.node`
+  * Code example: (interactive interpreter from the command line)
+	```
+	  node
+	  var infoLoggerModule=require("infoLogger");
+	  var logHandle=new infoLoggerModule.InfoLogger();
+	  logHandle.logInfo("This is a test");
+	  logHandle.logError("Something went wrong");
+	```          
+    
+
+
 ## Tips
 Don't forget to delete the objects if necessary!

src/infoLogger.i

@@ -13,6 +13,13 @@
 %}
 
 
+#ifdef SWIG_JAVASCRIPT_V8
+%inline %{
+  #include <node.h>
+%}
+#endif
+
+
 %include <exception.i>
 %exception {
   try {