[4064] | 1 | #ifdef __WIN32__
|
---|
| 2 | #include <WIN32cfg.h>
|
---|
| 3 | #include <strstream>
|
---|
| 4 | #else
|
---|
| 5 | #include <iostream.h>
|
---|
| 6 | #include <strstream.h>
|
---|
| 7 | #endif
|
---|
| 8 |
|
---|
[3365] | 9 | #include <jni.h>
|
---|
| 10 | #include "org_greenstone_mgpp_MGPPWrapper.h"
|
---|
| 11 | #include "MGPPWrapperImpl.h"
|
---|
| 12 | #include "TextGet.h"
|
---|
| 13 | #include "GSDLQueryParser.h"
|
---|
| 14 | #include "MGQuery.h"
|
---|
| 15 |
|
---|
| 16 | MGPPWrapperData::MGPPWrapperData() {
|
---|
| 17 | indexData = new IndexData();
|
---|
| 18 | queryInfo = new QueryInfo();
|
---|
| 19 |
|
---|
| 20 | if (queryInfo==NULL) {
|
---|
| 21 | cerr<<"couldn't allocate new query info\n";
|
---|
| 22 | if (indexData!=NULL) {
|
---|
| 23 | delete indexData;
|
---|
| 24 | }
|
---|
| 25 | }
|
---|
| 26 |
|
---|
| 27 | // set all the default params
|
---|
[3445] | 28 | SetCStr(queryInfo->docLevel, "Document"); // the level to search at
|
---|
[3365] | 29 | queryInfo->maxDocs = 50;
|
---|
| 30 | queryInfo->sortByRank = true;
|
---|
| 31 | queryInfo->exactWeights = false;
|
---|
| 32 | queryInfo->needRankInfo = true;
|
---|
| 33 | queryInfo->needTermFreqs = true;
|
---|
| 34 |
|
---|
| 35 | UCArrayClear(level);
|
---|
[3445] | 36 | SetCStr(level, "Document"); // the level to return docs at
|
---|
[3365] | 37 | defaultStemMethod=0;
|
---|
| 38 | defaultBoolCombine=0;
|
---|
| 39 |
|
---|
| 40 | }
|
---|
| 41 |
|
---|
| 42 | MGPPWrapperData::~MGPPWrapperData() {
|
---|
| 43 | if (indexData !=NULL) {
|
---|
| 44 | delete indexData;
|
---|
| 45 | }
|
---|
| 46 | if (queryInfo !=NULL) {
|
---|
| 47 | delete queryInfo;
|
---|
| 48 | }
|
---|
| 49 | }
|
---|
| 50 |
|
---|
| 51 | // ********************************************
|
---|
| 52 | // initialisation stuff
|
---|
| 53 | // ********************************************
|
---|
| 54 |
|
---|
| 55 | // cached ids for java stuff
|
---|
| 56 | jfieldID FID_mgpp_data = NULL; // MGPPWrapperData
|
---|
| 57 | jfieldID FID_query_result = NULL; // MGPPQueryResult
|
---|
| 58 | jmethodID MID_addDoc=NULL; // MGPPQueryResult.addDoc()
|
---|
| 59 | jmethodID MID_addTerm=NULL; // MGPPQueryResult.addTerm()
|
---|
| 60 | jmethodID MID_setTotalDocs=NULL; // MGPPQueryResult.setTotalDocs()
|
---|
| 61 | jmethodID MID_clearResult=NULL; //MGPPQueryResult.clear()
|
---|
[4212] | 62 | jmethodID MID_setSyntaxError=NULL; // MGPPQueryResult.setSyntaxError()
|
---|
[3365] | 63 | jclass CID_String=NULL; // class ID of String
|
---|
| 64 |
|
---|
| 65 | /* to access objects and methods on java side, need their field/method ids -
|
---|
| 66 | this initialises them at the start to avoid recalculating them each time they
|
---|
| 67 | are needed
|
---|
| 68 | Note: the descriptors need to be exactly right, otherwise you get an error
|
---|
| 69 | saying "no such field" but no reference to the fact that it has the right
|
---|
| 70 | name but the wrong type.
|
---|
| 71 | Note: apparently the jclass is a local ref and should only work
|
---|
| 72 | in the method that created it. It seems to work ok, but I'll make it
|
---|
| 73 | global cos the book said I should, and it may avoid future hassles.
|
---|
| 74 | */
|
---|
| 75 | JNIEXPORT void JNICALL
|
---|
| 76 | Java_org_greenstone_mgpp_MGPPWrapper_initIDs (JNIEnv *j_env, jclass j_cls) {
|
---|
| 77 |
|
---|
| 78 | FID_mgpp_data = j_env->GetFieldID(j_cls, "mgpp_data_ptr_", "J"); //a long-"J"
|
---|
| 79 | if (FID_mgpp_data==NULL) {
|
---|
[4237] | 80 | cerr <<"MGPP JNI: field mgpp_data_ptr_ not found"<<endl;
|
---|
[3365] | 81 | }
|
---|
| 82 |
|
---|
| 83 | FID_query_result = j_env->GetFieldID(j_cls, "mgpp_query_result_", "Lorg/greenstone/mgpp/MGPPQueryResult;"); // an object -"L<class name>;"
|
---|
| 84 | if (FID_query_result==NULL) {
|
---|
[4237] | 85 | cerr <<"MGPP JNI: field mgpp_query_result_ not found"<<endl;
|
---|
[3365] | 86 | }
|
---|
| 87 | // the methods we want to use
|
---|
| 88 |
|
---|
| 89 | // addDoc(long doc, float rank)
|
---|
| 90 | jclass JC_MGPPQueryResult = j_env->FindClass("org/greenstone/mgpp/MGPPQueryResult");
|
---|
| 91 | MID_addDoc = j_env->GetMethodID(JC_MGPPQueryResult, "addDoc", "(JF)V");
|
---|
| 92 | if (MID_addDoc==NULL) {
|
---|
[4237] | 93 | cerr <<"MGPP JNI: addDoc method not found"<<endl;
|
---|
[3365] | 94 | }
|
---|
| 95 | // addTerm(String term, String tag, int stem_method, long match_docs,
|
---|
| 96 | // long term_freq, String[] equiv_terms)
|
---|
| 97 | MID_addTerm = j_env->GetMethodID(JC_MGPPQueryResult, "addTerm", "(Ljava/lang/String;Ljava/lang/String;IJJ[Ljava/lang/String;)V");
|
---|
| 98 | if (MID_addTerm==NULL) {
|
---|
[4237] | 99 | cerr <<"MGPP JNI: method addTerm not found"<<endl;
|
---|
[3365] | 100 | }
|
---|
| 101 |
|
---|
| 102 | // setTotalDocs(long)
|
---|
| 103 | MID_setTotalDocs = j_env->GetMethodID(JC_MGPPQueryResult, "setTotalDocs", "(J)V");
|
---|
| 104 | if (MID_setTotalDocs==NULL) {
|
---|
[4237] | 105 | cerr <<"MGPP JNI: method setTotalDocs not found"<<endl;
|
---|
[3365] | 106 | }
|
---|
| 107 |
|
---|
| 108 | MID_clearResult = j_env->GetMethodID(JC_MGPPQueryResult, "clear", "()V");
|
---|
| 109 | if (MID_clearResult==NULL) {
|
---|
[4237] | 110 | cerr <<"MGPP JNI: method clear not found"<<endl;
|
---|
[3365] | 111 | }
|
---|
[4212] | 112 | MID_setSyntaxError = j_env->GetMethodID(JC_MGPPQueryResult, "setSyntaxError", "(Z)V");
|
---|
| 113 | if (MID_clearResult==NULL) {
|
---|
[4237] | 114 | cerr <<"MGPP JNI: method setSyntaxError not found"<<endl;
|
---|
[4212] | 115 | }
|
---|
[3365] | 116 |
|
---|
| 117 | // get the class for String to use in NewObjectArray in runQuery()
|
---|
| 118 | // FindClass returns a local reference - have to convert it to a global one
|
---|
| 119 | jclass local_CID_String = j_env->FindClass("java/lang/String");
|
---|
| 120 | if (local_CID_String==NULL) {
|
---|
[4237] | 121 | cerr <<"MGPP JNI: java String class not found"<<endl;
|
---|
[3365] | 122 | } else {
|
---|
| 123 | /* create a global ref */
|
---|
| 124 | CID_String = (jclass)j_env->NewGlobalRef(local_CID_String);
|
---|
| 125 | /* The local reference is no longer useful */
|
---|
| 126 | j_env->DeleteLocalRef(local_CID_String);
|
---|
| 127 |
|
---|
| 128 | /* Is the global reference created successfully? */
|
---|
| 129 | if (CID_String == NULL) {
|
---|
| 130 | return; /* out of memory exception thrown */
|
---|
| 131 | }
|
---|
| 132 | }
|
---|
| 133 |
|
---|
| 134 | }
|
---|
| 135 |
|
---|
| 136 | /* the java side MGPPWrapper has a pointer to a C++ object - MGPPWrapperData
|
---|
| 137 | initialise this and set the pointer
|
---|
| 138 | */
|
---|
| 139 | JNIEXPORT jboolean JNICALL
|
---|
| 140 | Java_org_greenstone_mgpp_MGPPWrapper_initCppSide (JNIEnv *j_env, jobject j_obj){
|
---|
| 141 |
|
---|
| 142 | MGPPWrapperData * data = new MGPPWrapperData();
|
---|
| 143 | j_env->SetIntField(j_obj, FID_mgpp_data, (long)data);
|
---|
| 144 |
|
---|
| 145 | return true;
|
---|
| 146 |
|
---|
| 147 | }
|
---|
| 148 |
|
---|
| 149 | //****************************************************
|
---|
| 150 | // retrieve a document
|
---|
| 151 | //****************************************************
|
---|
| 152 |
|
---|
| 153 | /* returns a document from mgpp as a string
|
---|
| 154 | Note: TextData isn't cached - just reloaded each time
|
---|
| 155 | */
|
---|
| 156 | JNIEXPORT jstring JNICALL
|
---|
| 157 | Java_org_greenstone_mgpp_MGPPWrapper_getDocument (JNIEnv *j_env,
|
---|
[4212] | 158 | jobject j_obj, jstring j_text_name, jstring j_level, jlong j_docnum) {
|
---|
[3365] | 159 |
|
---|
[3980] | 160 | #ifdef __WIN32__
|
---|
| 161 | const char* base_dir = "";
|
---|
| 162 | #else
|
---|
| 163 | const char* base_dir = "/";
|
---|
| 164 | #endif
|
---|
| 165 |
|
---|
[3365] | 166 | const char * text_name = j_env->GetStringUTFChars(j_text_name, NULL);
|
---|
| 167 | if (text_name==NULL) {
|
---|
| 168 | return NULL;
|
---|
| 169 | }
|
---|
| 170 |
|
---|
| 171 | const char * level = j_env->GetStringUTFChars( j_level, NULL);
|
---|
| 172 | if (level==NULL) {
|
---|
| 173 | j_env->ReleaseStringUTFChars(j_text_name, text_name);
|
---|
| 174 | return NULL;
|
---|
| 175 | }
|
---|
| 176 |
|
---|
| 177 | // does this work alright? j_docnum is a long (64 bit)
|
---|
| 178 | unsigned long docnum = j_docnum;
|
---|
| 179 | TextData td;
|
---|
| 180 |
|
---|
| 181 | // cast to char* otherwise complains about const
|
---|
| 182 | td.LoadData((char *)base_dir, (char *)text_name);
|
---|
| 183 |
|
---|
| 184 | UCArray mg_level;
|
---|
| 185 | SetCStr(mg_level, level);
|
---|
| 186 | UCArray docText;
|
---|
| 187 | docText.clear();
|
---|
| 188 | // get the actual text
|
---|
| 189 | if (!GetDocText(td, mg_level, docnum, docText)) {
|
---|
[4237] | 190 | cerr <<"MGPP JNI: couldn't retrieve doc text"<<endl;
|
---|
[3365] | 191 | }
|
---|
| 192 |
|
---|
| 193 | td.UnloadData();
|
---|
| 194 |
|
---|
| 195 | char * doc = GetCStr(docText); // do I need to free this char *??
|
---|
| 196 | jstring result = j_env->NewStringUTF(doc);
|
---|
| 197 | // release any gets
|
---|
| 198 | j_env->ReleaseStringUTFChars(j_text_name, text_name);
|
---|
| 199 | j_env->ReleaseStringUTFChars(j_level, level);
|
---|
| 200 |
|
---|
| 201 | // free any C++ stuff
|
---|
| 202 | delete doc;
|
---|
| 203 |
|
---|
| 204 | return result;
|
---|
| 205 |
|
---|
| 206 | }
|
---|
| 207 |
|
---|
| 208 | //******************************************
|
---|
| 209 | // do a query
|
---|
| 210 | // ****************************************
|
---|
| 211 |
|
---|
| 212 | /* load the IndexData - cached for querying
|
---|
| 213 | */
|
---|
| 214 | JNIEXPORT jboolean JNICALL
|
---|
[4212] | 215 | Java_org_greenstone_mgpp_MGPPWrapper_loadIndexData (JNIEnv *j_env, jobject j_obj, jstring j_index_name) {
|
---|
[3365] | 216 |
|
---|
| 217 | jint data_ptr = j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 218 | MGPPWrapperData * data = (MGPPWrapperData *)data_ptr;
|
---|
| 219 |
|
---|
[3980] | 220 | #ifdef __WIN32__
|
---|
| 221 | const char* base_dir = "";
|
---|
| 222 | #else
|
---|
| 223 | const char* base_dir = "/";
|
---|
| 224 | #endif
|
---|
| 225 |
|
---|
[3365] | 226 | const char * index_name = j_env->GetStringUTFChars( j_index_name, NULL);
|
---|
| 227 | if (index_name==NULL) {
|
---|
| 228 | return false;
|
---|
| 229 | }
|
---|
| 230 |
|
---|
| 231 | jboolean j_result=false;
|
---|
| 232 |
|
---|
| 233 | // why doesn't this complain about const??
|
---|
| 234 | if (data->indexData->LoadData(base_dir, index_name)) {
|
---|
| 235 | j_result=true;
|
---|
| 236 | }
|
---|
| 237 |
|
---|
| 238 | // release any gets
|
---|
| 239 | j_env->ReleaseStringUTFChars(j_index_name, index_name);
|
---|
| 240 |
|
---|
| 241 | return j_result;
|
---|
| 242 | }
|
---|
| 243 |
|
---|
| 244 | /* unload the data
|
---|
| 245 | */
|
---|
| 246 | JNIEXPORT jboolean JNICALL
|
---|
| 247 | Java_org_greenstone_mgpp_MGPPWrapper_unloadIndexData (JNIEnv *j_env, jobject j_obj) {
|
---|
| 248 |
|
---|
| 249 | jint data_ptr = j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 250 | MGPPWrapperData * data = (MGPPWrapperData *)data_ptr;
|
---|
| 251 |
|
---|
| 252 | data->indexData->UnloadData();
|
---|
| 253 | return true;
|
---|
| 254 |
|
---|
| 255 | }
|
---|
| 256 |
|
---|
| 257 | /* do the actual query - the results are written to query_result held on the
|
---|
| 258 | java side */
|
---|
| 259 | JNIEXPORT void JNICALL
|
---|
| 260 | Java_org_greenstone_mgpp_MGPPWrapper_runQuery (JNIEnv *j_env, jobject j_obj, jstring j_query){
|
---|
| 261 |
|
---|
| 262 | jthrowable exc; // an exception - check if something funny has happened
|
---|
| 263 | const char *query = j_env->GetStringUTFChars(j_query, NULL);
|
---|
| 264 | if (query==NULL) {
|
---|
| 265 | return; // exception already thrown
|
---|
| 266 | }
|
---|
| 267 | // turn to UCArray for mgpp and then release the string
|
---|
| 268 | UCArray queryArray;
|
---|
| 269 | SetCStr(queryArray, query);
|
---|
| 270 | j_env->ReleaseStringUTFChars(j_query, query);
|
---|
| 271 |
|
---|
| 272 | // the query data
|
---|
| 273 | MGPPWrapperData * data = (MGPPWrapperData *)j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 274 |
|
---|
| 275 | // the result to write to
|
---|
| 276 | jobject result_ptr = j_env->GetObjectField(j_obj, FID_query_result);
|
---|
| 277 | if (result_ptr==NULL) {
|
---|
| 278 | cerr <<"couldn't access the result to write to"<<endl;
|
---|
| 279 | return;
|
---|
| 280 | }
|
---|
| 281 |
|
---|
| 282 | // clear the result
|
---|
| 283 | j_env->CallVoidMethod(result_ptr, MID_clearResult);
|
---|
| 284 | exc = j_env->ExceptionOccurred(); // this catches teh exception I think - it
|
---|
| 285 | //wont be thrown any further
|
---|
| 286 | if (exc) {
|
---|
| 287 | j_env->ExceptionDescribe();
|
---|
| 288 | return;
|
---|
| 289 | }
|
---|
| 290 | // the mgpp QueryResult that we will use
|
---|
| 291 | ExtQueryResult queryResult;
|
---|
| 292 |
|
---|
| 293 | QueryNode * queryTree = NULL;
|
---|
| 294 | // parse the query string into a tree structure
|
---|
| 295 | queryTree = ParseQuery(queryArray, data->defaultBoolCombine,
|
---|
| 296 | data->defaultStemMethod);
|
---|
[4212] | 297 | if (queryTree == NULL) {
|
---|
| 298 | // invalid syntax
|
---|
| 299 | j_env->CallVoidMethod(result_ptr, MID_setSyntaxError, true);
|
---|
| 300 | cerr << "MGPPWrapperImpl: invalid query syntax!!\n";
|
---|
| 301 | return;
|
---|
| 302 | }
|
---|
[3365] | 303 | // print the query
|
---|
| 304 | PrintNode (cout, queryTree);
|
---|
| 305 | // finally, do the query
|
---|
| 306 | MGQuery(*(data->indexData), *(data->queryInfo), queryTree, queryResult, data->level);
|
---|
| 307 |
|
---|
| 308 | delete queryTree;
|
---|
| 309 |
|
---|
| 310 | // convert queryResult to the java side version
|
---|
| 311 | // use levels rather than docs of ExtQueryResult
|
---|
| 312 | // CallVoidMethod(obj, method id, args to method)
|
---|
| 313 | for (int i=0; i<queryResult.levels.size(); i++) {
|
---|
| 314 | jlong doc = queryResult.levels[i];
|
---|
| 315 | jfloat rank = queryResult.ranks[i];
|
---|
| 316 | j_env->CallVoidMethod(result_ptr, MID_addDoc, doc, rank);
|
---|
| 317 | exc = j_env->ExceptionOccurred();
|
---|
| 318 | if (exc) {
|
---|
| 319 | j_env->ExceptionDescribe();
|
---|
| 320 | return;
|
---|
| 321 | }
|
---|
| 322 |
|
---|
| 323 | }
|
---|
| 324 |
|
---|
| 325 | // actual num of docs
|
---|
| 326 | jlong total = queryResult.actualNumDocs;
|
---|
| 327 | j_env->CallVoidMethod(result_ptr, MID_setTotalDocs, total);
|
---|
| 328 | exc = j_env->ExceptionOccurred();
|
---|
| 329 | if (exc) {
|
---|
| 330 | j_env->ExceptionDescribe();
|
---|
| 331 | return;
|
---|
| 332 | }
|
---|
| 333 |
|
---|
| 334 | // the terms
|
---|
| 335 | for (int j=0; j<queryResult.termFreqs.size(); j++) {
|
---|
| 336 |
|
---|
| 337 | TermFreqData tf = queryResult.termFreqs[j];
|
---|
| 338 | jstring term = j_env->NewStringUTF(GetCStr(tf.term));
|
---|
| 339 | jstring tag = j_env->NewStringUTF(GetCStr(tf.tag));
|
---|
| 340 | jint stem = tf.stemMethod;
|
---|
| 341 | jlong match = tf.matchDocs;
|
---|
| 342 | jlong freq = tf.termFreq;
|
---|
| 343 |
|
---|
| 344 | jobjectArray equivs=NULL;
|
---|
| 345 | jstring empty = j_env->NewStringUTF(""); // the initial object to fill the array
|
---|
| 346 | jint num_equivs = tf.equivTerms.size();
|
---|
| 347 | equivs = j_env->NewObjectArray(num_equivs, CID_String, empty);
|
---|
| 348 | if (equivs==NULL) {
|
---|
| 349 | cerr<<"couldn't create object array"<<endl;
|
---|
| 350 |
|
---|
| 351 | } else {
|
---|
| 352 | for (int k=0; k<num_equivs;k++) {
|
---|
| 353 | jstring equiv = j_env->NewStringUTF(GetCStr(tf.equivTerms[k]));
|
---|
| 354 | j_env->SetObjectArrayElement(equivs, k, equiv);
|
---|
| 355 | }
|
---|
| 356 |
|
---|
| 357 |
|
---|
| 358 | j_env->CallVoidMethod(result_ptr, MID_addTerm, term, tag, stem, match, freq, equivs);
|
---|
| 359 | exc = j_env->ExceptionOccurred();
|
---|
| 360 | if (exc) {
|
---|
| 361 | j_env->ExceptionDescribe();
|
---|
| 362 | return;
|
---|
| 363 | }
|
---|
| 364 | }
|
---|
| 365 | }
|
---|
| 366 |
|
---|
| 367 |
|
---|
| 368 | }
|
---|
| 369 |
|
---|
| 370 | JNIEXPORT void JNICALL
|
---|
| 371 | Java_org_greenstone_mgpp_MGPPWrapper_setStem (JNIEnv *j_env,
|
---|
| 372 | jobject j_obj,
|
---|
| 373 | jboolean j_on) {
|
---|
| 374 | MGPPWrapperData * data = (MGPPWrapperData *)j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 375 | if (j_on) {
|
---|
| 376 | data->defaultStemMethod |= 2;
|
---|
| 377 | } else {
|
---|
| 378 | data->defaultStemMethod &= 0xd;
|
---|
| 379 | }
|
---|
| 380 |
|
---|
| 381 | }
|
---|
| 382 |
|
---|
| 383 | JNIEXPORT void JNICALL
|
---|
| 384 | Java_org_greenstone_mgpp_MGPPWrapper_setCase (JNIEnv *j_env,
|
---|
| 385 | jobject j_obj,
|
---|
| 386 | jboolean j_on) {
|
---|
| 387 | MGPPWrapperData * data = (MGPPWrapperData *)j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 388 |
|
---|
| 389 | if (j_on) {
|
---|
| 390 | data->defaultStemMethod |= 1;
|
---|
| 391 | } else {
|
---|
| 392 | data->defaultStemMethod &= 0xe;
|
---|
| 393 | }
|
---|
| 394 | }
|
---|
| 395 |
|
---|
| 396 | JNIEXPORT void JNICALL
|
---|
| 397 | Java_org_greenstone_mgpp_MGPPWrapper_setMaxDocs (JNIEnv *j_env,
|
---|
| 398 | jobject j_obj,
|
---|
| 399 | jint j_max) {
|
---|
| 400 | MGPPWrapperData * data = (MGPPWrapperData *)j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 401 | data->queryInfo->maxDocs=j_max;
|
---|
| 402 | }
|
---|
| 403 |
|
---|
| 404 | JNIEXPORT void JNICALL
|
---|
| 405 | Java_org_greenstone_mgpp_MGPPWrapper_setSortByRank (JNIEnv *j_env,
|
---|
| 406 | jobject j_obj,
|
---|
| 407 | jboolean j_on) {
|
---|
| 408 | MGPPWrapperData * data = (MGPPWrapperData *)j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 409 |
|
---|
| 410 | data->queryInfo->sortByRank=j_on;
|
---|
| 411 | }
|
---|
| 412 |
|
---|
| 413 | JNIEXPORT void JNICALL
|
---|
| 414 | Java_org_greenstone_mgpp_MGPPWrapper_setReturnTerms(JNIEnv *j_env,
|
---|
| 415 | jobject j_obj,
|
---|
| 416 | jboolean j_on) {
|
---|
| 417 | MGPPWrapperData * data = (MGPPWrapperData *)j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 418 | data->queryInfo->needTermFreqs = j_on;
|
---|
| 419 |
|
---|
| 420 | }
|
---|
| 421 |
|
---|
| 422 | JNIEXPORT void JNICALL
|
---|
| 423 | Java_org_greenstone_mgpp_MGPPWrapper_setQueryLevel(JNIEnv *j_env,
|
---|
| 424 | jobject j_obj,
|
---|
| 425 | jstring j_level){
|
---|
| 426 |
|
---|
| 427 | MGPPWrapperData * data = (MGPPWrapperData *)j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 428 |
|
---|
| 429 | const char * level = j_env->GetStringUTFChars(j_level, NULL);
|
---|
| 430 | if (level==NULL) {
|
---|
| 431 | return; // exception already thrown
|
---|
| 432 | }
|
---|
| 433 |
|
---|
| 434 | data->queryInfo->docLevel.clear();
|
---|
| 435 | SetCStr(data->queryInfo->docLevel, level);
|
---|
| 436 |
|
---|
| 437 | // release the java stuff
|
---|
| 438 | j_env->ReleaseStringUTFChars(j_level, level);
|
---|
| 439 |
|
---|
| 440 | }
|
---|
| 441 |
|
---|
| 442 | JNIEXPORT void JNICALL
|
---|
| 443 | Java_org_greenstone_mgpp_MGPPWrapper_setReturnLevel(JNIEnv *j_env,
|
---|
| 444 | jobject j_obj,
|
---|
| 445 | jstring j_level){
|
---|
| 446 |
|
---|
| 447 | MGPPWrapperData * data = (MGPPWrapperData *)j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 448 |
|
---|
| 449 | const char * level = j_env->GetStringUTFChars(j_level, NULL);
|
---|
| 450 | if (level==NULL) {
|
---|
| 451 | return; // exception already thrown
|
---|
| 452 | }
|
---|
| 453 |
|
---|
| 454 | data->level.clear();
|
---|
| 455 | SetCStr(data->level, level);
|
---|
| 456 |
|
---|
| 457 | // release the java stuff
|
---|
| 458 | j_env->ReleaseStringUTFChars(j_level, level);
|
---|
| 459 |
|
---|
| 460 |
|
---|
| 461 | }
|
---|
| 462 |
|
---|
| 463 | JNIEXPORT void JNICALL
|
---|
| 464 | Java_org_greenstone_mgpp_MGPPWrapper_setMatchMode (JNIEnv *j_env,
|
---|
| 465 | jobject j_obj,
|
---|
| 466 | jint j_mode){
|
---|
| 467 |
|
---|
| 468 | MGPPWrapperData * data = (MGPPWrapperData *)j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 469 | data->defaultBoolCombine=j_mode;
|
---|
| 470 |
|
---|
| 471 | }
|
---|
| 472 |
|
---|
| 473 | JNIEXPORT jstring JNICALL
|
---|
| 474 | Java_org_greenstone_mgpp_MGPPWrapper_getQueryParams (JNIEnv *j_env,
|
---|
| 475 | jobject j_obj){
|
---|
| 476 |
|
---|
| 477 | MGPPWrapperData * data = (MGPPWrapperData *)j_env->GetIntField(j_obj, FID_mgpp_data);
|
---|
| 478 |
|
---|
| 479 | // print the data to an output string stream, then convert to char*, then to
|
---|
| 480 | //jstring
|
---|
| 481 |
|
---|
| 482 | ostrstream output;
|
---|
| 483 | output << "Query params:"<<endl
|
---|
| 484 | // need to change this to use platform specific separator for niceness
|
---|
| 485 | << "index\t\t"<<data->indexData->basePath<<"/"<<data->indexData->filename<<endl
|
---|
| 486 | <<"search level\t"<<GetCStr(data->queryInfo->docLevel)<<endl
|
---|
| 487 | <<"result level\t"<<GetCStr(data->level)<<endl
|
---|
| 488 | <<"casefold\t"<<(data->defaultStemMethod&1)<<endl
|
---|
| 489 | <<"stem\t\t"<<(data->defaultStemMethod&2)<<endl
|
---|
| 490 | <<"order by rank\t"<<data->queryInfo->sortByRank<<endl
|
---|
| 491 | <<"query type\t"<<(data->defaultBoolCombine==1?"all":"some")<<endl
|
---|
[4064] | 492 | <<"max docs\t"<<data->queryInfo->maxDocs<<endl<<ends;
|
---|
[3365] | 493 |
|
---|
| 494 | char *result = output.str();
|
---|
| 495 | jstring j_result = j_env->NewStringUTF(result);
|
---|
| 496 | delete result;
|
---|
| 497 | return j_result;
|
---|
| 498 | }
|
---|