JNIEXPORT jlong JNICALL
Java_org_grammaticalframework_sg_SG_insertTriple(JNIEnv *env, jobject self,
jobject jsubj,
jobject jpred,
jobject jobj)
{
SgSG *sg = get_ref(env, self);
GuPool* tmp_pool = gu_local_pool();
GuExn* err = gu_exn(tmp_pool);
SgTriple triple;
triple[0] = gu_variant_from_ptr((void*) get_ref(env, jsubj));
triple[1] = gu_variant_from_ptr((void*) get_ref(env, jpred));
triple[2] = gu_variant_from_ptr((void*) get_ref(env, jobj));
SgId id = sg_insert_triple(sg, triple, err);
if (!gu_ok(err)) {
GuString msg;
if (gu_exn_caught(err, SgError)) {
msg = (GuString) gu_exn_caught_data(err);
} else {
msg = "The insertion failed";
}
throw_string_exception(env, "org/grammaticalframework/sg/SGError", msg);
gu_pool_free(tmp_pool);
return 0;
}
gu_pool_free(tmp_pool);
return id;
}
JNIEXPORT jstring JNICALL
Java_org_grammaticalframework_pgf_Concr_linearize(JNIEnv* env, jobject self, jobject jexpr)
{
GuPool* tmp_pool = gu_local_pool();
GuExn* err = gu_exn(tmp_pool);
GuStringBuf* sbuf = gu_string_buf(tmp_pool);
GuOut* out = gu_string_buf_out(sbuf);
pgf_linearize(get_ref(env, self), gu_variant_from_ptr((void*) get_ref(env, jexpr)), out, err);
if (!gu_ok(err)) {
if (gu_exn_caught(err, PgfLinNonExist)) {
gu_pool_free(tmp_pool);
return NULL;
} else if (gu_exn_caught(err, PgfExn)) {
GuString msg = (GuString) gu_exn_caught_data(err);
throw_string_exception(env, "org/grammaticalframework/pgf/PGFError", msg);
} else {
throw_string_exception(env, "org/grammaticalframework/pgf/PGFError", "The expression cannot be linearized");
}
gu_pool_free(tmp_pool);
return NULL;
}
GuString str = gu_string_buf_freeze(sbuf, tmp_pool);
jstring jstr = gu2j_string(env, str);
gu_pool_free(tmp_pool);
return jstr;
}
JNIEXPORT jlong JNICALL
Java_org_grammaticalframework_pgf_Expr_initApp(JNIEnv* env, jclass clazz, jstring jfun, jobjectArray args, jlong jpool)
{
GuPool* pool = l2p(jpool);
PgfExpr expr;
GuString fun = (*env)->GetStringUTFChars(env, jfun, 0);
PgfExprFun* e =
gu_new_flex_variant(PGF_EXPR_FUN,
PgfExprFun,
fun, strlen(fun)+1,
&expr, pool);
strcpy(e->fun, fun);
(*env)->ReleaseStringUTFChars(env, jfun, fun);
size_t n_args = (*env)->GetArrayLength(env, args);
for (size_t i = 0; i < n_args; i++) {
PgfExpr fun = expr;
PgfExpr arg = gu_variant_from_ptr(get_ref(env, (*env)->GetObjectArrayElement(env, args, i)));
PgfExprApp* e =
gu_new_variant(PGF_EXPR_APP,
PgfExprApp,
&expr, pool);
e->fun = fun;
e->arg = arg;
}
return expr;
}
JNIEXPORT jobject JNICALL
Java_org_grammaticalframework_sg_SG_queryTriple(JNIEnv *env, jobject self,
jobject jsubj,
jobject jpred,
jobject jobj)
{
SgSG *sg = get_ref(env, self);
GuPool* tmp_pool = gu_local_pool();
GuExn* err = gu_exn(tmp_pool);
SgTriple triple;
triple[0] = (jsubj == NULL) ? gu_null_variant
: gu_variant_from_ptr((void*) get_ref(env, jsubj));
triple[1] = (jpred == NULL) ? gu_null_variant
: gu_variant_from_ptr((void*) get_ref(env, jpred));
triple[2] = (jobj == NULL) ? gu_null_variant
: gu_variant_from_ptr((void*) get_ref(env, jobj));
SgTripleResult* res = sg_query_triple(sg, triple, err);
if (!gu_ok(err)) {
GuString msg;
if (gu_exn_caught(err, SgError)) {
msg = (GuString) gu_exn_caught_data(err);
} else {
msg = "The query failed";
}
throw_string_exception(env, "org/grammaticalframework/sg/SGError", msg);
gu_pool_free(tmp_pool);
return NULL;
}
gu_pool_free(tmp_pool);
jclass res_class = (*env)->FindClass(env, "org/grammaticalframework/sg/TripleResult");
jmethodID constrId = (*env)->GetMethodID(env, res_class, "<init>", "(JLorg/grammaticalframework/pgf/Expr;Lorg/grammaticalframework/pgf/Expr;Lorg/grammaticalframework/pgf/Expr;)V");
jobject jres = (*env)->NewObject(env, res_class, constrId, p2l(res), jsubj, jpred, jobj);
return jres;
}
JNIEXPORT jstring JNICALL
Java_org_grammaticalframework_pgf_Expr_showExpr(JNIEnv* env, jclass clazz, jlong ref)
{
GuPool* tmp_pool = gu_local_pool();
GuExn* err = gu_exn(tmp_pool);
GuStringBuf* sbuf = gu_string_buf(tmp_pool);
GuOut* out = gu_string_buf_out(sbuf);
pgf_print_expr(gu_variant_from_ptr(l2p(ref)), NULL, 0, out, err);
GuString str = gu_string_buf_freeze(sbuf, tmp_pool);
jstring jstr = gu2j_string(env, str);
gu_pool_free(tmp_pool);
return jstr;
}
JNIEXPORT jobjectArray JNICALL
Java_org_grammaticalframework_pgf_Concr_bracketedLinearize(JNIEnv* env, jobject self, jobject jexpr)
{
jclass object_class = (*env)->FindClass(env, "java/lang/Object");
if (!object_class)
return NULL;
jclass bracket_class = (*env)->FindClass(env, "org/grammaticalframework/pgf/Bracket");
if (!bracket_class)
return NULL;
jmethodID bracket_constrId = (*env)->GetMethodID(env, bracket_class, "<init>", "(Ljava/lang/String;Ljava/lang/String;II[Ljava/lang/Object;)V");
if (!bracket_constrId)
return NULL;
GuPool* tmp_pool = gu_local_pool();
GuExn* err = gu_exn(tmp_pool);
PgfConcr* concr = get_ref(env, self);
GuEnum* cts =
pgf_lzr_concretize(concr, gu_variant_from_ptr((void*) get_ref(env, jexpr)), err, tmp_pool);
if (!gu_ok(err)) {
if (gu_exn_caught(err, PgfExn)) {
GuString msg = (GuString) gu_exn_caught_data(err);
throw_string_exception(env, "org/grammaticalframework/pgf/PGFError", msg);
} else {
throw_string_exception(env, "org/grammaticalframework/pgf/PGFError", "The expression cannot be concretized");
}
gu_pool_free(tmp_pool);
return NULL;
}
PgfCncTree ctree = gu_next(cts, PgfCncTree, tmp_pool);
if (gu_variant_is_null(ctree)) {
throw_string_exception(env, "org/grammaticalframework/pgf/PGFError", "The expression cannot be concretized");
gu_pool_free(tmp_pool);
return NULL;
}
ctree = pgf_lzr_wrap_linref(ctree, tmp_pool);
PgfBracketLznState state;
state.funcs = &pgf_bracket_lin_funcs;
state.env = env;
state.tmp_pool = tmp_pool;
state.stack = gu_new_buf(GuBuf*, tmp_pool);
state.list = gu_new_buf(jobject, tmp_pool);
state.object_class = object_class;
state.bracket_class = bracket_class;
state.bracket_constrId = bracket_constrId;
pgf_lzr_linearize(concr, ctree, 0, &state.funcs, tmp_pool);
size_t len = gu_buf_length(state.list);
jobjectArray array = (*env)->NewObjectArray(env, len, object_class, NULL);
for (int i = 0; i < len; i++) {
jobject obj = gu_buf_get(state.list, jobject, i);
(*env)->SetObjectArrayElement(env, array, i, obj);
(*env)->DeleteLocalRef(env, obj);
}
gu_pool_free(tmp_pool);
return array;
}
JNIEXPORT jobject JNICALL
Java_org_grammaticalframework_pgf_Concr_tabularLinearize(JNIEnv* env, jobject self, jobject jexpr)
{
jclass map_class = (*env)->FindClass(env, "java/util/HashMap");
if (!map_class)
return NULL;
jmethodID constrId = (*env)->GetMethodID(env, map_class, "<init>", "()V");
if (!constrId)
return NULL;
jobject table = (*env)->NewObject(env, map_class, constrId);
if (!table)
return NULL;
jmethodID put_method = (*env)->GetMethodID(env, map_class, "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
if (!put_method)
return NULL;
PgfConcr* concr = get_ref(env, self);
GuPool* tmp_pool = gu_local_pool();
GuExn* err = gu_exn(tmp_pool);
GuEnum* cts =
pgf_lzr_concretize(concr,
gu_variant_from_ptr((void*) get_ref(env, jexpr)),
err,
tmp_pool);
if (!gu_ok(err)) {
if (gu_exn_caught(err, PgfExn)) {
GuString msg = (GuString) gu_exn_caught_data(err);
throw_string_exception(env, "org/grammaticalframework/pgf/PGFError", msg);
} else {
throw_string_exception(env, "org/grammaticalframework/pgf/PGFError", "The expression cannot be concretized");
}
gu_pool_free(tmp_pool);
return NULL;
}
PgfCncTree ctree = gu_next(cts, PgfCncTree, tmp_pool);
if (gu_variant_is_null(ctree)) {
gu_pool_free(tmp_pool);
return NULL;
}
size_t n_lins;
GuString* labels;
pgf_lzr_get_table(concr, ctree, &n_lins, &labels);
for (size_t lin_idx = 0; lin_idx < n_lins; lin_idx++) {
GuStringBuf* sbuf = gu_string_buf(tmp_pool);
GuOut* out = gu_string_buf_out(sbuf);
pgf_lzr_linearize_simple(concr, ctree, lin_idx, out, err, tmp_pool);
jstring jstr = NULL;
if (gu_ok(err)) {
GuString str = gu_string_buf_freeze(sbuf, tmp_pool);
jstr = gu2j_string(env, str);
} else {
gu_exn_clear(err);
}
jstring jname = gu2j_string(env, labels[lin_idx]);
(*env)->CallObjectMethod(env, table, put_method, jname, jstr);
(*env)->DeleteLocalRef(env, jname);
if (jstr != NULL)
(*env)->DeleteLocalRef(env, jstr);
}
gu_pool_free(tmp_pool);
return table;
}
static PgfExprProb*
jpgf_literal_callback_match(PgfLiteralCallback* self, PgfConcr* concr,
size_t lin_idx,
GuString sentence, size_t* poffset,
GuPool *out_pool)
{
JPgfLiteralCallback* callback = gu_container(self, JPgfLiteralCallback, callback);
JNIEnv *env;
(*cachedJVM)->AttachCurrentThread(cachedJVM, &env, NULL);
jstring jsentence = gu2j_string(env, sentence);
size_t joffset = gu2j_string_offset(sentence, *poffset);
jobject result = (*env)->CallObjectMethod(env, callback->jcallback, callback->match_methodId, lin_idx, jsentence, joffset);
if (result == NULL)
return NULL;
jclass result_class = (*env)->GetObjectClass(env, result);
jfieldID epId = (*env)->GetFieldID(env, result_class, "ep", "Lorg/grammaticalframework/pgf/ExprProb;");
jobject jep = (*env)->GetObjectField(env, result, epId);
jclass ep_class = (*env)->GetObjectClass(env, jep);
jfieldID exprId = (*env)->GetFieldID(env, ep_class, "expr", "Lorg/grammaticalframework/pgf/Expr;");
jobject jexpr = (*env)->GetObjectField(env, jep, exprId);
jfieldID probId = (*env)->GetFieldID(env, ep_class, "prob", "D");
double prob = (*env)->GetDoubleField(env, jep, probId);
jfieldID offsetId = (*env)->GetFieldID(env, result_class, "offset", "I");
*poffset = j2gu_string_offset(sentence, (*env)->GetIntField(env, result, offsetId));
PgfExprProb* ep = gu_new(PgfExprProb, out_pool);
ep->expr = gu_variant_from_ptr(get_ref(env, jexpr));
ep->prob = prob;
{
// This is an uggly hack. We first show the expression ep->expr
// and then we read it back but in out_pool. The whole purpose
// of this is to copy the expression from the temporary pool
// that was created in the Java binding to the parser pool.
// There should be a real copying function or even better
// there must be a way to avoid copying at all.
GuPool* tmp_pool = gu_local_pool();
GuExn* err = gu_exn(tmp_pool);
GuStringBuf* sbuf = gu_string_buf(tmp_pool);
GuOut* out = gu_string_buf_out(sbuf);
pgf_print_expr(ep->expr, NULL, 0, out, err);
GuString str = gu_string_buf_freeze(sbuf, tmp_pool);
GuIn* in = gu_data_in((uint8_t*) str, strlen(str), tmp_pool);
ep->expr = pgf_read_expr(in, out_pool, err);
if (!gu_ok(err) || gu_variant_is_null(ep->expr)) {
throw_string_exception(env, "org/grammaticalframework/pgf/PGFError", "The expression cannot be parsed");
gu_pool_free(tmp_pool);
return NULL;
}
gu_pool_free(tmp_pool);
}
return ep;
}
