source: trunk/zoo-kernel/service_internal_java.c @ 1

Last change on this file since 1 was 1, checked in by djay, 10 years ago

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1/**
2 * Author : Gérald FENOY
3 *
4 * Copyright (c) 2009-2010 GeoLabs SARL
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25#include "service_internal_java.h"
26
27int zoo_java_support(maps** main_conf,map* request,service* s,maps **real_inputs,maps **real_outputs){
28  maps* m=*main_conf;
29  maps* inputs=*real_inputs;
30  maps* outputs=*real_outputs;
31  char ntmp[1024];
32  getcwd(ntmp,1024);
33  map* tmp=getMap(request,"metapath");
34  char classpath[2048];
35  char oclasspath[2068];
36  int res=SERVICE_FAILED;
37  if(tmp!=NULL){
38    sprintf(classpath,"%s/%s/:$CLASSPATH",ntmp,tmp->value);
39    sprintf(oclasspath,"-Djava.class.path=%s/%s",ntmp,tmp->value);
40  }
41  else{
42    sprintf(classpath,"%s:$CLASSPATH",ntmp);
43    sprintf(oclasspath,"-Djava.class.path=%s",ntmp);
44  }
45#ifdef DEBUG
46  fprintf(stderr,"CLASSPATH=%s\n",classpath);
47#endif
48  setenv("CLASSPATH",classpath,1);
49
50  JavaVMOption options[2];
51  JavaVMInitArgs vm_args;
52  JavaVM *jvm;
53  JNIEnv *env;
54  long result;
55  jmethodID pmid;
56  jfieldID fid;
57  jobject jobj;
58  jclass cls,cls_gr;
59  int i;
60
61  options[0].optionString = oclasspath;
62  options[1].optionString = "-Djava.compiler=NONE";
63
64  vm_args.version = JNI_VERSION_1_4;
65  vm_args.options = options;
66  vm_args.nOptions = 2;
67  vm_args.ignoreUnrecognized = JNI_FALSE;
68
69  result = JNI_CreateJavaVM(&jvm,(void **)&env, &vm_args);
70  if(result == JNI_ERR ) {
71    fprintf(stderr,"Error invoking the JVM");
72    return -1;
73  }
74#ifdef DEBUG
75  else 
76    fprintf(stderr,"JAVA VM Started\n");
77#endif
78
79  tmp=getMap(s->content,"serviceProvider");
80  cls = (*env)->FindClass(env,tmp->value);
81  cls_gr = (*env)->NewGlobalRef(env, cls);
82  if( cls == NULL ) {
83    char pbt[10240];
84    sprintf(pbt,"can't find class %s\n",tmp->value);
85    map* err=createMap("text",pbt);
86    addToMap(err,"code","NoApplicableCode");
87    printExceptionReportResponse(m,err);
88    (*jvm)->DestroyJavaVM(jvm);
89    return 1;
90  }
91#ifdef DEBUG
92  else{
93    fprintf(stderr,"%s loaded\n",tmp->value);
94  }
95#endif
96
97  if (cls != NULL) {
98    (*env)->ExceptionClear(env);
99    pmid=(*env)->GetStaticMethodID(env,cls_gr, s->name, "(Ljava/util/HashMap;Ljava/util/HashMap;Ljava/util/HashMap;)I");
100    if (pmid!=0){
101#ifdef DEBUG
102      fprintf(stderr,"Function successfully loaded\n");
103#endif
104      /**
105       * The 3 standard parameter for each services
106       */
107      jobject arg1=HashMap_FromMaps(env,m);
108      jobject arg2=HashMap_FromMaps(env,inputs);
109      jobject arg3=HashMap_FromMaps(env,outputs);
110      jint pValue=0;
111
112      pValue=(*env)->CallStaticIntMethod(env,cls,pmid,arg1,arg2,arg3);
113      if (pValue != NULL){
114        res=pValue;
115        //inputs=mapsFromHashMap(env,arg2);
116        outputs=mapsFromHashMap(env,arg3);
117        *real_outputs=outputs;
118
119#ifdef DEBUG
120        fprintf(stderr,"Result of call: %i\n", pValue);
121        dumpMaps(inputs);
122        dumpMaps(outputs);
123        /*fprintf(stderr,"printProcessResponse(%i,\"%s\",%i,inputs,outputs);",
124          getpid(),tmp->value,PyInt_AsLong(pValue));*/
125#endif
126      }else{     
127        /**
128         * Error handling displayig stack trace in ExceptionReport
129         */
130        map *tmpm=getMapFromMaps(*main_conf,"main","tmpPath");
131        char tmps[1024];
132        sprintf(tmps,"%s/%d.ztmp",tmpm->value,getpid());
133        int old_stdout=dup(fileno(stdout));
134        FILE* new_stdout=fopen(tmps,"w+");
135        dup2(fileno(new_stdout),fileno(stdout));
136        (*env)->ExceptionDescribe(env);
137        fflush(stdout);
138        dup2(old_stdout,fileno(stdout));
139        fseek(new_stdout, 0, SEEK_END);
140        long flen=ftell(new_stdout);
141        rewind(new_stdout);
142        char tmps1[flen];
143        fread(tmps1,flen,1,new_stdout);
144        fclose(new_stdout);
145        char pbt[100+flen];
146        sprintf(pbt,"Unable to run your java process properly. Server returns : %s",tmps1);
147        map* err=createMap("text",pbt);
148        addToMap(err,"code","NoApplicableCode");
149        printExceptionReportResponse(m,err);
150        (*jvm)->DestroyJavaVM(jvm);
151        return 1;
152      }
153    }
154    else{
155      char tmpS[1024];
156      sprintf(tmpS, "Cannot find function %s \n", s->name);
157      map* tmps=createMap("text",tmpS);
158      printExceptionReportResponse(m,tmps);
159      (*jvm)->DestroyJavaVM(jvm);
160      exit(-1);
161    }
162  }else{
163    char tmpS[1024];
164    sprintf(tmpS, "Cannot find function %s \n", tmp->value);
165    map* tmps=createMap("text",tmpS);
166    printExceptionReportResponse(m,tmps);
167    if (PyErr_Occurred())
168      PyErr_Print();
169  }
170  (*jvm)->DestroyJavaVM(jvm);
171  return res;
172}
173
174jobject HashMap_FromMaps(JNIEnv *env,maps* t){
175  jclass scHashMapClass,scHashMap_class;
176  jmethodID scHashMap_constructor;
177  jobject scObject,scObject1;
178  scHashMapClass = (*env)->FindClass(env, "java/util/HashMap");
179  scHashMap_class = (*env)->NewGlobalRef(env, scHashMapClass);
180  scHashMap_constructor = (*env)->GetMethodID(env, scHashMap_class, "<init>", "()V");   
181  if(scHashMap_constructor!=NULL){
182    scObject = (*env)->NewObject(env, scHashMap_class, scHashMap_constructor);
183    jmethodID put_mid = 0;
184
185    put_mid = (*env)->GetMethodID(env,scHashMapClass, "put",
186                                  "(Ljava/lang/Object;Ljava/lang/Object;)"
187                                  "Ljava/lang/Object;");
188    maps* tmp=t;
189    while(tmp!=NULL){
190      map* tmp1=tmp->content;
191      scObject1 = (*env)->NewObject(env, scHashMap_class, scHashMap_constructor);
192      while(tmp1!=NULL){
193        (*env)->CallObjectMethod(env,scObject1, put_mid, (*env)->NewStringUTF(env,tmp1->name), (*env)->NewStringUTF(env,tmp1->value));
194        tmp1=tmp1->next;
195      }
196      (*env)->CallObjectMethod(env,scObject, put_mid, (*env)->NewStringUTF(env,tmp->name), scObject1);
197      tmp=tmp->next;
198    } 
199    return scObject;
200  }
201  else
202    return NULL;
203}
204
205maps* mapsFromHashMap(JNIEnv *env,jobject t){
206#ifdef DEBUG
207  fprintf(stderr,"mapsFromHashMap start\n");
208#endif
209  /**
210   * What need to be done (in java).
211   * Set set = hm.entrySet();
212   * Iterator i = set.iterator();
213   * while(i.hasNext()){
214   *   Map.Entry me = (Map.Entry)i.next();
215   *   System.out.println(me.getKey() + " : " + me.getValue() );
216   * }
217   */
218  jclass scHashMapClass,scHashMap_class,scSetClass,scIteratorClass,scMapEntryClass,scSet_class,scMapClass;
219  jmethodID entrySet_mid,iterator_mid,hasNext_mid,next_mid,getKey_mid,getValue_mid;
220  jobject scObject,scObject1;
221  scHashMapClass=(*env)->GetObjectClass(env,t);
222  //scMapClass=(*env)->FindClass(env, "java/util/HashMap");
223  //scHashMapClass = (*env)->FindClass(env, "java/util/HashMap");
224  if(scHashMapClass==NULL){
225    fprintf(stderr,"Unable to load java.util.HashMap\n");
226    return NULL;
227  }
228  entrySet_mid = (*env)->GetMethodID(env, scHashMapClass, "entrySet", "()Ljava/util/Set;"); 
229  if(entrySet_mid==0){
230    fprintf(stderr,"unable to load entrySet from HashMap object (%d) \n",entrySet_mid);
231    return NULL;
232  }
233#ifdef DEBUG
234  else
235    fprintf(stderr,"entrySet loaded from HashMap object (%d) \n",entrySet_mid);
236#endif
237
238  scSetClass = (*env)->FindClass(env, "java/util/Set");
239  iterator_mid = (*env)->GetMethodID(env, scSetClass, "iterator", "()Ljava/util/Iterator;"); 
240#ifdef DEBUG
241  fprintf(stderr,"mapsFromHashMap 1 (%d) \n",iterator_mid);
242#endif
243
244  scIteratorClass = (*env)->FindClass(env, "java/util/Iterator");
245  hasNext_mid = (*env)->GetMethodID(env, scIteratorClass, "hasNext", "()Z");
246#ifdef DEBUG
247  fprintf(stderr,"mapsFromHashMap 2 (%d)\n",hasNext_mid);
248#endif
249  next_mid = (*env)->GetMethodID(env, scIteratorClass, "next", "()Ljava/lang/Object;");
250#ifdef DEBUG
251  fprintf(stderr,"mapsFromHashMap 3 (%d)\n",next_mid);
252#endif
253
254  scMapEntryClass = (*env)->FindClass(env, "java/util/Map$Entry");
255  getKey_mid = (*env)->GetMethodID(env, scMapEntryClass, "getKey", "()Ljava/lang/Object;");
256#ifdef DEBUG
257  fprintf(stderr,"mapsFromHashMap 4 (%d)\n",getKey_mid);
258#endif
259  getValue_mid = (*env)->GetMethodID(env, scMapEntryClass, "getValue", "()Ljava/lang/Object;");
260#ifdef DEBUG
261  fprintf(stderr,"mapsFromHashMap 5 (%d)\n",getValue_mid);
262#endif
263
264  jobject final_set=(*env)->CallObjectMethod(env,t,entrySet_mid);
265  jobject final_iterator=(*env)->CallObjectMethod(env,final_set,iterator_mid);
266
267
268  maps* final_res=NULL;
269  map* res=NULL;
270#ifdef DEBUG
271  int i=0;
272#endif
273  while((*env)->CallBooleanMethod(env,final_iterator,hasNext_mid)){
274#ifdef DEBUG
275    fprintf(stderr,"mapsFromHashMap loop %d\n",i);
276    i++;
277#endif
278    jobject tmp=(*env)->CallObjectMethod(env,final_iterator,next_mid);
279
280    jobject imap=(*env)->CallObjectMethod(env,tmp,getValue_mid);
281    jobject set=(*env)->CallObjectMethod(env,imap,entrySet_mid);
282    jobject iterator=(*env)->CallObjectMethod(env,set,iterator_mid);
283#ifdef DEBUG
284    int j=0;
285#endif
286    while((*env)->CallBooleanMethod(env,iterator,hasNext_mid)){
287#ifdef DEBUG
288      fprintf(stderr,"mapsFromHashMap internal loop %d\n",j);
289      j++;
290#endif
291      jobject tmp1=(*env)->CallObjectMethod(env,iterator,next_mid);
292      jobject jk=(*env)->CallObjectMethod(env,tmp1,getKey_mid);
293      jobject jv=(*env)->CallObjectMethod(env,tmp1,getValue_mid);
294
295#ifdef DEBUG
296      jstring jkd=(*env)->GetStringUTFChars(env, jk, NULL);
297      jstring jvd=(*env)->GetStringUTFChars(env, jv, NULL);
298      fprintf(stderr,"%s %s\n",jkd,jvd);
299#endif
300
301      if(res==NULL){
302        res=createMap((*env)->GetStringUTFChars(env, jk, NULL),
303                      (*env)->GetStringUTFChars(env, jv, NULL));
304      }else
305        addToMap(res,(*env)->GetStringUTFChars(env, jk, NULL),
306                 (*env)->GetStringUTFChars(env, jv, NULL));
307    }
308    jobject jk=(*env)->CallObjectMethod(env,tmp,getKey_mid);
309    maps* cmap=(maps*)malloc(sizeof(maps));
310    cmap->name=(*env)->GetStringUTFChars(env, jk, NULL);
311    cmap->content=res;
312    cmap->next=NULL;
313    if(final_res==NULL){
314      final_res=cmap;
315    }else
316      addMapsToMaps(final_res,cmap);
317    final_res->next=NULL;
318    res=NULL;
319  }
320#ifdef DEBUG
321  fprintf(stderr,"mapsFromHashMap end\n");
322#endif
323
324  return final_res;
325}
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