java/JavaModule.cpp

#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <jni.h>

#include "gridlabd.h"
//#include "myclass.h"

#define MODULENAME "JavaModule"
#define MAJOR 1
#define MINOR 0

static JNIEnv *jnienv = NULL;

EXPORT CLASS *javainit(CALLBACKS *fntable, MODULE *module, int argc, char *argv[], JNIEnv *env)
{
    // set the GridLAB core API callback table
    callback = fntable;

    // set the JNI Environment pointer
    jnienv = env;

    jclass cls = jnienv->FindClass(MODULENAME);

    // init is int (*)(long, int, String[])
    jmethodID init_mid = env->GetStaticMethodID(cls, "init", "(JI[Ljava/lang/String;)I");

    if(cls == NULL)
        return NULL;

    if(init_mid == NULL)
        return NULL;

    jobjectArray args = env->NewObjectArray(argc, jnienv->FindClass("[Ljava/lang/String;"), NULL);
    if(args == NULL)
        return NULL;

    jstring jargv[argc];
    for(int i = 0; i < argc; ++i){
        jargv[i] = env->NewStringUTF(argv[i]);
        jnienv->SetObjectArrayElement(jargv[i], i, args);
    }

    jnienv->CallStaticIntMethod(cls, init_mid, (long long)module, argc, jargv);

    // TODO: register each object class by creating its first instance
    //new myclass(module);

    // always return the first class registered
    //return myclass::oclass;

    // JNI cleanup
    jnienv->DeleteLocalRef(jobjectArray);
    for(int i = 0; i < argc; ++i)
        ; /* delete the strings */

    return NULL;
}

CDECL int do_kill()
{
    // if anything needs to be deleted or freed, this is a good time to do it
    return 0;
}

#if 0

    public static int check(){
        return 0;
    }
    public static int import_file(String filename){
        return 0;
    }
    public static int export_file(String filename){
        return 0;
    }
    public static int setvar(String varname, String value){
        return 0;
    }
    public static int module_test(int argc, String[] argv){
        return 0;
    }
    public static int cmdargs(int argc, String[] argv){
        return 0;
    }
    /* returns a string to fprintf into the C-side stub */
    public static String kmldump(long object_addr){
        return "";
    }

#endif

/* EOF */

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GridLAB-D^TM Version 2.0

An open-source project initiated by the US Department of Energy