/*
* Class: hdf_hdf5lib_H5
* Method: H5Aget_name_by_idx
* Signature: (JLjava/lang/String;IIJJ)Ljava/lang/String;
*/
JNIEXPORT jstring JNICALL
Java_hdf_hdf5lib_H5_H5Aget_1name_1by_1idx
(JNIEnv *env, jclass clss, jlong loc_id, jstring obj_name, jint idx_type, jint order, jlong n, jlong lapl_id)
{
size_t buf_size;
char *aValue;
jlong status_size;
jstring str = NULL;
const char *aName;
PIN_JAVA_STRING(obj_name, aName);
if (aName != NULL) {
/* get the length of the attribute name */
status_size = H5Aget_name_by_idx((hid_t)loc_id, aName, (H5_index_t)idx_type,
(H5_iter_order_t) order, (hsize_t) n, (char*)NULL, (size_t)0, (hid_t)lapl_id);
if(status_size < 0) {
UNPIN_JAVA_STRING(obj_name, aName);
h5libraryError(env);
} /* end if */
else {
buf_size = (size_t)status_size + 1;/* add extra space for the null terminator */
aValue = (char*)HDmalloc(sizeof(char) * buf_size);
if (aValue == NULL) {
UNPIN_JAVA_STRING(obj_name, aName);
h5outOfMemory(env, "H5Aget_name_by_idx: malloc failed ");
} /* end if */
else {
status_size = H5Aget_name_by_idx((hid_t)loc_id, aName, (H5_index_t)idx_type,
(H5_iter_order_t) order, (hsize_t) n, (char*)aValue, (size_t)buf_size, (hid_t)lapl_id);
UNPIN_JAVA_STRING(obj_name, aName);
if (status_size < 0) {
HDfree(aValue);
h5libraryError(env);
} /* end if */
else {
str = ENVPTR->NewStringUTF(ENVPAR aValue);
HDfree(aValue);
if (str == NULL) {
/* exception -- fatal JNI error */
h5JNIFatalError(env, "H5Aget_name_by_idx: return string not created");
} /* end if */
} /* end else */
} /* end else */
} /* end else */
}
return str;
} /* end Java_hdf_hdf5lib_H5_H5Aget_1name_1by_1idx */
void Object::updateAttributes()
{
fAttributes.clear();
if (fObjectId < 0)
return;
// get attributes
int nAttrs = H5Aget_num_attrs(fObjectId);
if (nAttrs < 0) {
throw Exception("Could not retrieve number of attributes");
}
for (size_t iAttr = 0; iAttr < static_cast<size_t>(nAttrs); ++iAttr) {
char* attrName;
char objName[] = ".";
ssize_t nameLen = H5Aget_name_by_idx(fObjectId, objName, H5_INDEX_NAME, H5_ITER_INC, iAttr, 0, 0, H5P_DEFAULT);
if (nameLen > 0) {
// fetch name of this attribute
attrName = new char[++nameLen];
H5Aget_name_by_idx(fObjectId, objName, H5_INDEX_NAME, H5_ITER_INC, iAttr, attrName, nameLen, H5P_DEFAULT);
string sAttrName(attrName);
delete[] attrName;
// open attribute
hid_t attrId = H5Aopen_by_idx(fObjectId, objName, H5_INDEX_NAME, H5_ITER_INC, iAttr, H5P_DEFAULT, H5P_DEFAULT);
if (attrId < 0) {
cerr << "Could not open attribute '" << sAttrName << "'" << endl;
continue;
}
// parse type info
// cout << "Reading attribute: " << sAttrName << endl;
fAttributes[sAttrName] = llReadAttribute(attrId);
// close attribute
H5Aclose(attrId);
}
}
}
