source: branches/prototype-v0/zoo-project/zoo-kernel/service_internal_java.c @ 899

/*
 * Author : Gérald FENOY
 *
 * Copyright (c) 2009-2013 GeoLabs SARL
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "service_internal_java.h"
#include "response_print.h"

/**
 * Load a JAVA class then run the static public method corresponding to the 
 * service by passing the conf, inputs and outputs parameters by reference.
 *
 * @param main_conf the conf maps containing the main.cfg settings
 * @param request the map containing the HTTP request
 * @param s the service structure
 * @param real_inputs the maps containing the inputs
 * @param real_outputs the maps containing the outputs
 */
int zoo_java_support(maps** main_conf,map* request,service* s,maps **real_inputs,maps **real_outputs){
  maps* m=*main_conf;
  maps* inputs=*real_inputs;
  maps* outputs=*real_outputs;
  map* cwdMap=getMapFromMaps(*main_conf,"lenv","cwd");
  char *ntmp=NULL;
  if(cwdMap!=NULL)
    ntmp=zStrdup(cwdMap->value);
  map* tmp=getMap(request,"metapath");
  char *classpath;
  char *oclasspath;
  int res=SERVICE_FAILED;
  char *cclasspath=getenv("CLASSPATH");
  if(tmp!=NULL){
    if(cclasspath!=NULL){
      classpath=(char*) malloc((strlen(ntmp)+strlen(tmp->value)+strlen(cclasspath)+4)*sizeof(char));
      oclasspath=(char*) malloc((strlen(ntmp)+strlen(tmp->value)+strlen(cclasspath)+22)*sizeof(char));
#ifndef WIN32
      sprintf(classpath,"%s/%s/:%s",ntmp,tmp->value,cclasspath);
#else
      sprintf(classpath,"%s/%s/;%s",ntmp,tmp->value,cclasspath);
#endif
    }
    else{
      classpath=(char*) malloc((strlen(ntmp)+strlen(tmp->value)+3)*sizeof(char));
      oclasspath=(char*) malloc((strlen(ntmp)+strlen(tmp->value)+21)*sizeof(char));
      sprintf(classpath,"%s/%s/",ntmp,tmp->value);
    }
  }else{
    if(cclasspath!=NULL){
      classpath=(char*) malloc((strlen(ntmp)+strlen(cclasspath)+3)*sizeof(char));
      oclasspath=(char*) malloc((strlen(ntmp)+strlen(cclasspath)+21)*sizeof(char));
#ifndef WIN32
      sprintf(classpath,"%s/:%s",ntmp,cclasspath);
#else
      sprintf(classpath,"%s/;%s",ntmp,cclasspath);
#endif
    }
    else{
      classpath=(char*) malloc((strlen(ntmp)+2)*sizeof(char));
      oclasspath=(char*) malloc((strlen(ntmp)+20)*sizeof(char));
      sprintf(classpath,"%s/",ntmp);
    }
  }
  sprintf(oclasspath,"-Djava.class.path=%s",classpath);
#ifdef DEBUG
  fprintf(stderr,"CLASSPATH=%s\n",classpath);
  fprintf(stderr,"(%s)\n",oclasspath);
#endif
#ifndef USE_JDB
  int njdb=0;
#else
  int njdb=2;
#endif
#ifndef WIN32
  int nb=2+njdb;
#endif
  int nbs[3]={0,0,0};
  maps* javaMap=getMaps(*main_conf,"java");
  if(javaMap!=NULL){
    nbs[0]+=count(javaMap->content);
  }
  int nbc1=0;
  maps* javaXMap=getMaps(*main_conf,"javax");
  if(javaXMap!=NULL){
    nbs[1]+=count(javaXMap->content);
  }
  int nbc0=0;
  maps* javaXXMap=getMaps(*main_conf,"javaxx");
  if(javaXXMap!=NULL){
    nbs[2]+=count(javaXXMap->content);
  }
#ifdef WIN32
  const int nb=2+nbs[1]+nbs[2]+nbs[0];
  JavaVMOption *options=(JavaVMOption*)malloc(nb*sizeof(JavaVMOption));
#else
  JavaVMOption options[nb+nbs[1]+nbs[2]+nbs[0]+1];
#endif
  JavaVMInitArgs vm_args;
  JavaVM *jvm;
  JNIEnv *env;
  long result;
  jmethodID pmid;
  jclass cls;
#ifdef JAVA7
  jobject cls_gr;
#else
  jclass cls_gr;
#endif
  int i,start;
  options[0].optionString = oclasspath;
  options[0].extraInfo=NULL;
  options[1].optionString = "-server";
  options[1].extraInfo=NULL;
#ifdef USE_JDB
  options[2].optionString = "-Xdebug";
  options[2].extraInfo=NULL;
  options[3].optionString = "-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=7896";
  options[3].extraInfo=NULL;
#endif
#ifdef WIN32
  start=2;
  options[1].optionString = "-Xmx512m";
#else
  start=2+njdb;
#endif
  map *cursors[3]={NULL,NULL,NULL};
  if(javaMap!=NULL)
    cursors[0]=javaMap->content;
  if(javaXMap!=NULL)
    cursors[1]=javaXMap->content;
  if(javaXXMap!=NULL)
    cursors[2]=javaXXMap->content;
  for(i=0;i<nbs[0];i++){
    char *tmp=parseJVMOption(cursors[0]);
    options[start+i].optionString = zStrdup(tmp);
    options[start+i].extraInfo=NULL;
    free(tmp);
    cursors[0]=cursors[0]->next;
  }
  for(;i<nbs[0]+nbs[1];i++){
    char *tmp=parseJVMXOption(cursors[1]);
    options[start+i].optionString = zStrdup(tmp);
    options[start+i].extraInfo=NULL;
    free(tmp);
    cursors[1]=cursors[1]->next;
  }
  for(;i<nbs[0]+nbs[2]+nbs[1];i++){
    char *tmp=parseJVMXXOption(cursors[2]);
    options[start+i].optionString = zStrdup(tmp);
    options[start+i].extraInfo=NULL;
    free(tmp);
    cursors[2]=cursors[2]->next;
  }

  JNI_GetDefaultJavaVMInitArgs(&vm_args);
  vm_args.version = JNI_VERSION_1_6;
  vm_args.options = options;
  vm_args.nOptions = start+nbs[0]+nbs[1]+nbs[2];
  vm_args.ignoreUnrecognized = JNI_TRUE;

  result = JNI_CreateJavaVM(&jvm,(void **)&env, &vm_args);
  if(result == JNI_ERR ) {
    fprintf(stderr,"Error invoking the JVM");
    return -1;
  }
#ifdef DEBUG
  else
    fprintf(stderr,"JAVA VM Started\n");
#endif

  tmp=getMap(s->content,"serviceProvider");
#ifdef JAVA7
  cls = (*env).FindClass(tmp->value);
#else
  cls = (*env)->FindClass(env,tmp->value);
#endif
  if( cls == NULL ) {
    displayStack(env,*main_conf);
#ifdef JAVA7
    (*jvm).DestroyJavaVM();
#else
    (*jvm)->DestroyJavaVM(jvm);
#endif
    return -1;
  }
#ifdef DEBUG
  else{
    fprintf(stderr,"%s loaded\n",tmp->value);
  }
#endif
#ifdef JAVA7
  cls_gr = (*env).NewGlobalRef(cls);
#else
  cls_gr = (*env)->NewGlobalRef(env, cls);
#endif

  if (cls != NULL) {
#ifdef JAVA7
    (*env).ExceptionClear();
    pmid=(*env).GetStaticMethodID(cls, s->name, "(Ljava/util/HashMap;Ljava/util/HashMap;Ljava/util/HashMap;)I");
#else
    (*env)->ExceptionClear(env);
    pmid=(*env)->GetStaticMethodID(env,cls_gr, s->name, "(Ljava/util/HashMap;Ljava/util/HashMap;Ljava/util/HashMap;)I");
#endif
    if (pmid!=0){
#ifdef DEBUG
      fprintf(stderr,"Function successfully loaded\n");
#endif
      jclass scHashMapClass,scHashMap_class;
      jmethodID scHashMap_constructor;
#ifdef JAVA7
      scHashMapClass = (*env).FindClass("java/util/HashMap");
      scHashMap_class = (jclass)(*env).NewGlobalRef(scHashMapClass);
      scHashMap_constructor = (*env).GetMethodID(scHashMap_class, "<init>", "()V");
#else
      scHashMapClass = (*env)->FindClass(env, "java/util/HashMap");
      scHashMap_class = (*env)->NewGlobalRef(env, scHashMapClass);
      scHashMap_constructor = (*env)->GetMethodID(env, scHashMap_class, "<init>", "()V");
#endif
      /**
       * The 3 standard parameter for each services
       */
      jobject arg1=HashMap_FromMaps(env,m,scHashMapClass,scHashMap_class,scHashMap_constructor);
      jobject arg2=HashMap_FromMaps(env,inputs,scHashMapClass,scHashMap_class,scHashMap_constructor);
      jobject arg3=HashMap_FromMaps(env,outputs,scHashMapClass,scHashMap_class,scHashMap_constructor);
      jint pValue=0;

#ifdef JAVA7
      pValue=(*env).CallStaticIntMethod(cls,pmid,arg1,arg2,arg3);
#else
      pValue=(*env)->CallStaticIntMethod(env,cls,pmid,arg1,arg2,arg3);
#endif
      if (pValue != (jint)NULL){
        res=pValue;
        freeMaps(real_outputs);
        free(*real_outputs);
        freeMaps(main_conf);
        free(*main_conf);
        *main_conf=mapsFromHashMap(env,arg1,scHashMapClass);
        *real_outputs=mapsFromHashMap(env,arg3,scHashMapClass);
#ifdef DEBUG
        fprintf(stderr,"Result of call: %i\n", pValue);
        dumpMaps(inputs);
        dumpMaps(outputs);
#endif
      }else{
        displayStack(env,*main_conf);
#ifdef JAVA7
        (*jvm).DestroyJavaVM();
#else
        (*jvm)->DestroyJavaVM(jvm);
#endif
        return -1;
      }
    }
    else{
      displayStack(env,*main_conf);
#ifdef JAVA7
      (*env).ExceptionDescribe();
      (*jvm).DestroyJavaVM();
#else
      (*jvm)->DestroyJavaVM(jvm);
#endif
      return -1;
    }
  }
#ifdef JAVA7
  (*jvm).DestroyJavaVM();
#else
  (*jvm)->DestroyJavaVM(jvm);
#endif
  for(i=0;i<nbs[2]+nbs[1]+nbs[0];i++){
    free(options[start+i].optionString);
  }
#ifdef WIN32
  free(options);
#endif
  return res;
}

/**
 * Error handling: display stack trace in an ExceptionReport Document
 *
 * @param env the JNI environment pointer
 * @param main_conf the conf maps containing the main.cfg settings
 */
void displayStack(JNIEnv *env,maps* main_conf){
  map *tmpm=getMapFromMaps(main_conf,"main","tmpPath");
  char tmps[1024];
  sprintf(tmps,"%s/%d.ztmp",tmpm->value,getpid());
  FILE* new_stdout=fopen(tmps,"wb+");
  if(new_stdout==NULL){
    map* err=createMap("text","Unable to run your service, no debug information can be provided (please verify privileges on tmpPath)");
    addToMap(err,"code","InternalError");
    printExceptionReportResponse(main_conf,err);
    freeMap(&err);
    free(err);
    return;
  }
  fflush(stderr);
  dup2(fileno(new_stdout),fileno(stderr));
  fprintf(stderr,"Unable to run your java process properly: ");
  fflush(stderr);
#ifdef JAVA7
  (*env).ExceptionDescribe();
#else
  (*env)->ExceptionDescribe(env);
#endif
  fflush(new_stdout);
  fseek(new_stdout, 0, SEEK_END);
  long flen=ftell(new_stdout);
  fseek(new_stdout, 0, SEEK_SET);
  char *tmps1=(char*)malloc((flen+1)*sizeof(char));
  fread(tmps1,flen,1,new_stdout);
  fclose(new_stdout);
  tmps1[flen]=0;
  map* err=createMap("text",tmps1);
  addToMap(err,"code","InternalError");
  printExceptionReportResponse(main_conf,err);
  freeMap(&err);
  free(err);
}

/**
 * Create a string containing the JVM -D* options for a given map
 * The result will be : -Dname=value
 *
 * @param m the map containing the option
 * @return a char* containing the valide JVM option (-D*)
 */
char *parseJVMOption(map* m){
  char *res=(char*)malloc((strlen(m->name)+strlen(m->value)+4)*sizeof(char));
  sprintf(res,"-D%s=%s",m->name,m->value);
  return res;
}

/**
 * Create a string containing the JVM -XX:* option for a given map
 * Depending on the map' name:
 *  - in case the value is minus then the result will be : -XX:-name
 *  - in case the value is plus then the result will be : -XX:+name
 *  - in other cases the result will be : -XX:name=value
 *
 * @param m the map containing the option
 * @return a char* containing the valide JVM option (-XX:*)
 */
char *parseJVMXXOption(map* m){
  char *res=(char*)malloc((strlen(m->name)+strlen(m->value)+6)*sizeof(char));
  if(strncasecmp(m->value,"minus",5)==0)
    sprintf(res,"-XX:-%s",m->name);
  else if(strncasecmp(m->value,"plus",4)==0)
    sprintf(res,"-XX:+%s",m->name);
  else
    sprintf(res,"-XX:%s=%s",m->name,m->value);
  return res;
}

/**
 * Create a string containing the JVM -X** option for a given map.
 * The result will be in the following format: -Xnamevalue
 *
 * @param m the map containing the option
 * @return a char* containing the valide JVM option (-X**)
 */
char *parseJVMXOption(map* m){
  char *res=(char*)malloc((strlen(m->name)+strlen(m->value)+5)*sizeof(char));
  sprintf(res,"-X%s%s",m->name,m->value);
  return res;
}

/**
 * Convert a maps to a JAVA HashMap<String,HashMap<String,String>>
 *
 * @param env the JNI environment pointer
 * @param t the maps to convert
 * @param scHashMapClass the HashMap class
 * @param scHashMap_class the HashMap class
 * @param scHashMap_constructor the pointer to the hashMap constructor method
 * @return a created JAVA HashMap containing the converted maps
 * @warning make sure to free resources returned by this function
 */
jobject HashMap_FromMaps(JNIEnv *env,maps* t,jclass scHashMapClass,jclass scHashMap_class,jmethodID scHashMap_constructor){
  jobject scObject,scObject1;
  if(scHashMap_constructor!=NULL){
#ifdef JAVA7
    scObject = (*env).NewObject(scHashMap_class, scHashMap_constructor);
#else
    scObject = (*env)->NewObject(env, scHashMap_class, scHashMap_constructor);
#endif
    jmethodID put_mid = 0;

#ifdef JAVA7
    put_mid = (*env).GetMethodID(scHashMapClass, "put",
                                  "(Ljava/lang/Object;Ljava/lang/Object;)"
                                  "Ljava/lang/Object;");
#else
    put_mid = (*env)->GetMethodID(env,scHashMapClass, "put",
                                  "(Ljava/lang/Object;Ljava/lang/Object;)"
                                  "Ljava/lang/Object;");
#endif
    maps* tmp=t;
    while(tmp!=NULL){
      map* tmap=getMapType(tmp->content);
      map* tmp1=tmp->content;
#ifdef JAVA7
      scObject1 = (*env).NewObject(scHashMap_class, scHashMap_constructor);
#else
      scObject1 = (*env)->NewObject(env, scHashMap_class, scHashMap_constructor);
#endif
      map* sizeV=getMap(tmp1,"size");
      map* useFile=getMap(tmp1,"use_file");
      map* cacheFile=getMap(tmp1,"cache_file");
      map* isArray=getMap(tmp1,"isArray");
      map* alen=getMap(tmp1,"length");
      while(tmp1!=NULL){
        if(strcmp(tmp1->name,"value")==0){
          if(isArray==NULL){
            if(sizeV!=NULL && strcmp(tmp1->name,"value")==0 && useFile==NULL){
#ifdef JAVA7
              jbyteArray tmpData=(*env).NewByteArray(atoi(sizeV->value));
              (*env).SetByteArrayRegion(tmpData,0,atoi(sizeV->value),(const jbyte *)tmp1->value);
              (*env).CallObjectMethod(scObject1, put_mid, (*env).NewStringUTF(tmp1->name), tmpData);
#else
              jbyteArray tmpData=(*env)->NewByteArray(env,atoi(sizeV->value));
              (*env)->SetByteArrayRegion(env,tmpData,0,atoi(sizeV->value),(jbyte*) tmp1->value);
              (*env)->CallObjectMethod(env,scObject1, put_mid, (*env)->NewStringUTF(env,tmp1->name), tmpData);
#endif
            }else
#ifdef JAVA7
              (*env).CallObjectMethod(scObject1, put_mid, (*env).NewStringUTF(tmp1->name), (*env).NewStringUTF(tmp1->value));
#else
              (*env)->CallObjectMethod(env,scObject1, put_mid, (*env)->NewStringUTF(env,tmp1->name), (*env)->NewStringUTF(env,tmp1->value));
#endif
              if(useFile!=NULL)
#ifdef JAVA7
                (*env).CallObjectMethod(scObject1, put_mid, (*env).NewStringUTF("cache_file"), (*env).NewStringUTF(cacheFile->value));
#else
                (*env)->CallObjectMethod(env,scObject1, put_mid, (*env)->NewStringUTF(env,"cache_file"), (*env)->NewStringUTF(env,cacheFile->value));
#endif
              
          }
          else{
            int alen1=atoi(alen->value);
            fprintf(stderr,"LENGTH %d \n",alen1);
            
            jclass scArrayListClass,scArrayList_class;
            jmethodID scArrayList_constructor;
            jobject scObject2,scObject3;
#ifdef JAVA7
            scArrayListClass = (*env).FindClass("java/util/ArrayList");
            scArrayList_class = (jclass)(*env).NewGlobalRef(scArrayListClass);
            scArrayList_constructor = (*env).GetMethodID(scArrayList_class, "<init>", "()V");
            jmethodID add_mid = 0;
            scObject2 = (*env).NewObject(scArrayList_class, scArrayList_constructor);
            scObject3 = (*env).NewObject(scArrayList_class, scArrayList_constructor);

            add_mid = (*env).GetMethodID(scArrayListClass,
                                          "add","(Ljava/lang/Object;)Z");
#else
            scArrayListClass = (*env)->FindClass(env, "java/util/ArrayList");
            scArrayList_class = (*env)->NewGlobalRef(env, scArrayListClass);
            scArrayList_constructor = (*env)->GetMethodID(env, scArrayList_class, "<init>", "()V");
            jmethodID add_mid = 0;
            scObject2 = (*env)->NewObject(env, scArrayList_class, scArrayList_constructor);
            scObject3 = (*env)->NewObject(env, scArrayList_class, scArrayList_constructor);

            add_mid = (*env)->GetMethodID(env,scArrayListClass,
                                          "add","(Ljava/lang/Object;)Z");
#endif      
            int i;
            
            for(i=0;i<alen1;i++){
              map* cMap=getMapArray(tmp->content,"cache_file",i);
              map* uMap=getMapArray(tmp->content,"use_file",i);
              map* vMap=getMapArray(tmp->content,"value",i);
              map* sMap=getMapArray(tmp->content,"size",i);
              map* mMap=getMapArray(tmp->content,tmap->value,i);
              
              if(sMap!=NULL && vMap!=NULL && strncmp(vMap->name,"value",5)==0 && uMap==NULL){
#ifdef JAVA7
                jbyteArray tmpData=(*env).NewByteArray(atoi(sMap->value));
                (*env).SetByteArrayRegion(tmpData,0,atoi(sMap->value),(const jbyte *)vMap->value);
                (*env).CallObjectMethod(scObject2, add_mid, tmpData);
#else
                jbyteArray tmpData=(*env)->NewByteArray(env,atoi(sMap->value));
                (*env)->SetByteArrayRegion(env,tmpData,0,atoi(sMap->value),vMap->value);
                (*env)->CallObjectMethod(env,scObject2, add_mid, tmpData);
#endif
              }else{
#ifdef JAVA7
                jobject tmpData=(*env).NewStringUTF(vMap->value);
                (*env).CallObjectMethod(scObject2, add_mid, tmpData);
#else
                jobject tmpData=(*env)->NewStringUTF(env,vMap->value);
                (*env)->CallObjectMethod(env,scObject2, add_mid, tmpData);
#endif
              }

              if(cMap!=NULL){
#ifdef JAVA7
                jobject tmpData=(*env).NewStringUTF(cMap->value);
                (*env).CallObjectMethod(scObject3, add_mid, tmpData);
#else
                jobject tmpData=(*env)->NewStringUTF(env,cMap->value);
                (*env)->CallObjectMethod(env,scObject3, add_mid, tmpData);
#endif

              }
            }

#ifdef JAVA7
            (*env).CallObjectMethod(scObject1, put_mid, (*env).NewStringUTF(tmp1->name), scObject2);
            (*env).CallObjectMethod(scObject1, put_mid, (*env).NewStringUTF("cache_file"), scObject3);
#else       
            (*env)->CallObjectMethod(env,scObject1, put_mid, (*env)->NewStringUTF(env,tmp1->name), scObject2);
            (*env)->CallObjectMethod(env,scObject1, put_mid, (*env)->NewStringUTF(env,"cache_file"), scObject3);
#endif

          }
        }
        else
#ifdef JAVA7
          (*env).CallObjectMethod(scObject1, put_mid, (*env).NewStringUTF(tmp1->name), (*env).NewStringUTF(tmp1->value));
#else
          (*env)->CallObjectMethod(env,scObject1, put_mid, (*env)->NewStringUTF(env,tmp1->name), (*env)->NewStringUTF(env,tmp1->value));
#endif
        tmp1=tmp1->next;
      }
#ifdef JAVA7
      (*env).CallObjectMethod(scObject, put_mid, (*env).NewStringUTF(tmp->name), scObject1);
#else
      (*env)->CallObjectMethod(env,scObject, put_mid, (*env)->NewStringUTF(env,tmp->name), scObject1);
#endif
      tmp=tmp->next;
    }
    return scObject;
  }
  else
    return NULL;
}

/**
 * Convert a JAVA HashMap<String,HashMap<String,String>> to a maps
 *
 * @param env the JNI environment pointer
 * @param t the HashMap 
 * @param scHashMapClass the hashMap class
 * @return a created maps containing the converted HashMap
 * @warning make sure to free resources returned by this function
 */
maps* mapsFromHashMap(JNIEnv *env,jobject t,jclass scHashMapClass){
#ifdef DEBUG
  fprintf(stderr,"mapsFromHashMap start\n");
#endif
  /**
   * What need to be done (in java).
   * Set set = hm.entrySet();
   * Iterator i = set.iterator();
   * while(i.hasNext()){
   *   Map.Entry me = (Map.Entry)i.next();
   *   System.out.println(me.getKey() + " : " + me.getValue() );
   * }
   */
  jclass scSetClass,scIteratorClass,scMapEntryClass;
  jmethodID entrySet_mid,containsKey_mid,get_mid,iterator_mid,hasNext_mid,next_mid,getKey_mid,getValue_mid;
  if(scHashMapClass==NULL){
#ifdef DEBUG
    fprintf(stderr,"Unable to load java.util.HashMap\n");
#endif
    return NULL;
  }
#ifdef JAVA7
  entrySet_mid = (*env).GetMethodID(scHashMapClass, "entrySet", "()Ljava/util/Set;"); 
  containsKey_mid = (*env).GetMethodID(scHashMapClass, "containsKey", "(Ljava/lang/Object;)Z");
  get_mid = (*env).GetMethodID(scHashMapClass, "get", "(Ljava/lang/Object;)Ljava/lang/Object;"); 
#else
  entrySet_mid = (*env)->GetMethodID(env, scHashMapClass, "entrySet", "()Ljava/util/Set;"); 
  containsKey_mid = (*env)->GetMethodID(env, scHashMapClass, "containsKey", "(Ljava/lang/Object;)Z");
  get_mid = (*env)->GetMethodID(env, scHashMapClass, "get", "(Ljava/lang/Object;)Ljava/lang/Object;"); 
#endif

  if(containsKey_mid==0){
#ifdef DEBUG
    fprintf(stderr,"unable to load containsKey from HashMap object (%d) \n",entrySet_mid);
#endif
    return NULL;
  }
  if(get_mid==0){
#ifdef DEBUG
    fprintf(stderr,"unable to load get from HashMap object (%d) \n",entrySet_mid);
#endif
    return NULL;
  }
  if(entrySet_mid==0){
#ifdef DEBUG
    fprintf(stderr,"unable to load entrySet from HashMap object (%d) \n",entrySet_mid);
#endif
    return NULL;
  }
#ifdef DEBUG
  else
    fprintf(stderr,"entrySet loaded from HashMap object (%d) \n",entrySet_mid);
#endif

#ifdef JAVA7
  scSetClass = (*env).FindClass("java/util/Set");
  iterator_mid = (*env).GetMethodID(scSetClass, "iterator", "()Ljava/util/Iterator;"); 
#else
  scSetClass = (*env)->FindClass(env, "java/util/Set");
  iterator_mid = (*env)->GetMethodID(env, scSetClass, "iterator", "()Ljava/util/Iterator;"); 
#endif
#ifdef DEBUG
  fprintf(stderr,"mapsFromHashMap 1 (%d) \n",iterator_mid);
#endif

#ifdef JAVA7
  scIteratorClass = (*env).FindClass("java/util/Iterator");
  hasNext_mid = (*env).GetMethodID(scIteratorClass, "hasNext", "()Z");
#else
  scIteratorClass = (*env)->FindClass(env, "java/util/Iterator");
  hasNext_mid = (*env)->GetMethodID(env, scIteratorClass, "hasNext", "()Z");
#endif

#ifdef DEBUG
  fprintf(stderr,"mapsFromHashMap 2 (%d)\n",hasNext_mid);
#endif

#ifdef JAVA7
  next_mid = (*env).GetMethodID(scIteratorClass, "next", "()Ljava/lang/Object;");
#else
  next_mid = (*env)->GetMethodID(env, scIteratorClass, "next", "()Ljava/lang/Object;");
#endif
#ifdef DEBUG
  fprintf(stderr,"mapsFromHashMap 3 (%d)\n",next_mid);
#endif

#ifdef JAVA7
  scMapEntryClass = (*env).FindClass("java/util/Map$Entry");
  getKey_mid = (*env).GetMethodID(scMapEntryClass, "getKey", "()Ljava/lang/Object;");
#else
  scMapEntryClass = (*env)->FindClass(env, "java/util/Map$Entry");
  getKey_mid = (*env)->GetMethodID(env, scMapEntryClass, "getKey", "()Ljava/lang/Object;");
#endif
#ifdef DEBUG
  fprintf(stderr,"mapsFromHashMap 4 (%d)\n",getKey_mid);
#endif
#ifdef JAVA7
  getValue_mid = (*env).GetMethodID(scMapEntryClass, "getValue", "()Ljava/lang/Object;");
#else
  getValue_mid = (*env)->GetMethodID(env, scMapEntryClass, "getValue", "()Ljava/lang/Object;");
#endif
#ifdef DEBUG
  fprintf(stderr,"mapsFromHashMap 5 (%d)\n",getValue_mid);
#endif

#ifdef JAVA7
  jobject final_set=(*env).CallObjectMethod(t,entrySet_mid);
  jobject final_iterator=(*env).CallObjectMethod(final_set,iterator_mid);
#else
  jobject final_set=(*env)->CallObjectMethod(env,t,entrySet_mid);
  jobject final_iterator=(*env)->CallObjectMethod(env,final_set,iterator_mid);
#endif

  maps* final_res=NULL;
  map* res=NULL;
#ifdef JAVA7
  while((*env).CallBooleanMethod(final_iterator,hasNext_mid)){
    jobject tmp=(*env).CallObjectMethod(final_iterator,next_mid);

    jobject imap=(*env).CallObjectMethod(tmp,getValue_mid);
    jobject set=(*env).CallObjectMethod(imap,entrySet_mid);
    jobject iterator=(*env).CallObjectMethod(set,iterator_mid);

#else
  while((*env)->CallBooleanMethod(env,final_iterator,hasNext_mid)){
    jobject tmp=(*env)->CallObjectMethod(env,final_iterator,next_mid);

    jobject imap=(*env)->CallObjectMethod(env,tmp,getValue_mid);
    jobject set=(*env)->CallObjectMethod(env,imap,entrySet_mid);
    jobject iterator=(*env)->CallObjectMethod(env,set,iterator_mid);

#endif
    int size=-1;
#ifdef JAVA7
    if((*env).CallBooleanMethod(imap,containsKey_mid,(*env).NewStringUTF("size"))){
      jobject sizeV=(*env).CallObjectMethod(imap, get_mid,(*env).NewStringUTF("size"));
      const char* sizeVS=(*env).GetStringUTFChars((jstring)sizeV, NULL);
#else
    if((*env)->CallBooleanMethod(env,imap,containsKey_mid,(*env)->NewStringUTF(env,"size"))){
      jobject sizeV=(*env)->CallObjectMethod(env, imap, get_mid,(*env)->NewStringUTF(env,"size"));
      const char* sizeVS=(*env)->GetStringUTFChars(env, sizeV, NULL);
#endif
      size=atoi(sizeVS);
      fprintf(stderr,"SIZE : %s\n",sizeVS);
#ifdef JAVA7
      (*env).ReleaseStringUTFChars((jstring)sizeV, sizeVS);
#else
      (*env)->ReleaseStringUTFChars(env, sizeV, sizeVS);
#endif
    }
    
#ifdef JAVA7
    while((*env).CallBooleanMethod(iterator,hasNext_mid)){
      jobject tmp1=(*env).CallObjectMethod(iterator,next_mid);
      jobject jk=(*env).CallObjectMethod(tmp1,getKey_mid);
      jobject jv=(*env).CallObjectMethod(tmp1,getValue_mid);

      const char* jkd=(*env).GetStringUTFChars((jstring)jk, NULL);
#else
    while((*env)->CallBooleanMethod(env,iterator,hasNext_mid)){
      jobject tmp1=(*env)->CallObjectMethod(env,iterator,next_mid);
      jobject jk=(*env)->CallObjectMethod(env,tmp1,getKey_mid);
      jobject jv=(*env)->CallObjectMethod(env,tmp1,getValue_mid);

      const char* jkd=(*env)->GetStringUTFChars(env, jk, NULL);
#endif
      if(size>=0 && strcmp(jkd,"value")==0){
#ifdef JAVA7
        jobject value=(jobject)(*env).GetByteArrayElements((jbyteArray)jv, NULL);
#else
        jobject value=(*env)->GetByteArrayElements(env, jv, NULL);
#endif
        if(res==NULL){
          res=createMap(jkd,"");
        }else{
          addToMap(res,jkd,"");
        }
        map* tmpR=getMap(res,"value");
        free(tmpR->value);
        tmpR->value=(char*)malloc((size+1)*sizeof(char));
        memmove(tmpR->value,value,size*sizeof(char));
        tmpR->value[size]=0;
        char tmp[128];
        sprintf(tmp,"%d",size);
        addToMap(res,"size",tmp);
      }
      else{
#ifdef JAVA7
        const char* jvd=(*env).GetStringUTFChars((jstring)jv, NULL);
#else
        const char* jvd=(*env)->GetStringUTFChars(env, jv, NULL);
#endif
        if(res==NULL){
          res=createMap(jkd,jvd);
        }else{
          addToMap(res,jkd,jvd);
        }
#ifdef JAVA7
        (*env).ReleaseStringUTFChars((jstring)jv, jvd);
#else
        (*env)->ReleaseStringUTFChars(env, jv, jvd);
#endif
      }

#ifdef JAVA7
      (*env).ReleaseStringUTFChars((jstring)jk, jkd);
#else
      (*env)->ReleaseStringUTFChars(env, jk, jkd);
#endif

    }
#ifdef JAVA7
    jobject jk=(*env).CallObjectMethod(tmp,getKey_mid);
#else
    jobject jk=(*env)->CallObjectMethod(env,tmp,getKey_mid);
#endif
    maps* cmap=createMaps(
#ifdef JAVA7
      (char*)(*env).GetStringUTFChars((jstring)jk, NULL)
#else
      (*env)->GetStringUTFChars(env, jk, NULL)
#endif
                          );
#ifdef DEBUG
    fprintf(stderr," / %s \n",cmap->name);
#endif
    cmap->content=res;
    if(final_res==NULL)
      final_res=dupMaps(&cmap);
    else
      addMapsToMaps(&final_res,cmap);
    freeMaps(&cmap);
    free(cmap);
    cmap=NULL;
    res=NULL;
  }
#ifdef DEBUG
  fprintf(stderr,"mapsFromHashMap end\n");
#endif
  return final_res;
}