Files
obitools3/python/obitools3/obidms/_obidmscolumn_seq.pyx
Celine Mercier 26b8e1f215 Modified C API to set and get in columns: added functions to set and get
using column names instead of pointers, and changed function names
2016-08-02 16:33:19 +02:00

111 lines
4.3 KiB
Cython

#cython: language_level=3
from .capi.obiview cimport obi_get_seq_with_elt_name_and_col_p_in_view, \
obi_get_seq_with_elt_idx_and_col_p_in_view, \
obi_set_seq_with_elt_name_and_col_p_in_view, \
obi_set_seq_with_elt_idx_and_col_p_in_view
from .capi.obialign cimport obi_align_one_column
from .capi.obierrno cimport obi_errno
from .capi.obitypes cimport OBISeq_NA, const_char_p
from ._obidms cimport OBIView
from obitools3.utils cimport str2bytes, bytes2str
from libc.stdlib cimport free
cdef class OBIDMS_column_seq(OBIDMS_column):
cpdef object get_line(self, index_t line_nb):
cdef char* value
cdef object result
value = obi_get_seq_with_elt_idx_and_col_p_in_view(self.view.pointer, (self.pointer)[0], line_nb, 0)
if obi_errno > 0 :
raise IndexError(line_nb)
if value == OBISeq_NA :
result = None
else :
result = bytes2str(value)
free(value)
return result
cpdef set_line(self, index_t line_nb, object value):
if value is None :
if obi_set_seq_with_elt_idx_and_col_p_in_view(self.view.pointer, (self.pointer)[0], line_nb, 0, OBISeq_NA) < 0:
raise Exception("Problem setting a value in a column")
else :
if obi_set_seq_with_elt_idx_and_col_p_in_view(self.view.pointer, (self.pointer)[0], line_nb, 0, str2bytes(value)) < 0:
raise Exception("Problem setting a value in a column")
# TODO choose alignment type (lcs or other) with supplementary argument
cpdef align(self,
OBIView score_view,
OBIDMS_column score_column,
double threshold = 0.0,
bint normalize = True,
int reference = 0, # TODO
bint similarity_mode = True):
if (obi_align_one_column(self.view.pointer, (self.pointer)[0], score_view.pointer, (score_column.pointer)[0], threshold, normalize, reference, similarity_mode) < 0) :
raise Exception("An error occurred while aligning sequences")
cdef class OBIDMS_column_multi_elts_seq(OBIDMS_column_multi_elts):
cpdef object get_item(self, index_t line_nb, str element_name):
cdef char* value
cdef object result
value = obi_get_seq_with_elt_name_and_col_p_in_view(self.view.pointer, (self.pointer)[0], line_nb, str2bytes(element_name))
if obi_errno > 0 :
raise IndexError(line_nb, element_name)
if value == OBISeq_NA :
result = None
else :
result = bytes2str(value)
free(value)
return result
cpdef object get_line(self, index_t line_nb) :
cdef char* value
cdef object value_in_result
cdef dict result
cdef index_t i
cdef bint all_NA
result = {}
all_NA = True
for i in range(self.nb_elements_per_line) :
value = obi_get_seq_with_elt_idx_and_col_p_in_view(self.view.pointer, (self.pointer)[0], line_nb, i)
if obi_errno > 0 :
raise IndexError(line_nb)
if value == OBISeq_NA :
value_in_result = None
else :
value_in_result = bytes2str(value)
free(value)
result[self.elements_names[i]] = value_in_result
if all_NA and (value_in_result is not None) :
all_NA = False
if all_NA :
result = None
return result
cpdef set_item(self, index_t line_nb, str element_name, object value):
cdef bytes value_b
if value is None :
value_b = OBISeq_NA
elif isinstance(value, bytes) :
value_b = value
elif isinstance(value, str) :
value_b = str2bytes(value)
else:
raise TypeError('Sequence value must be of type Bytes, Str or None')
if obi_set_seq_with_elt_name_and_col_p_in_view(self.view.pointer, (self.pointer)[0], line_nb, str2bytes(element_name), value_b) < 0:
raise Exception("Problem setting a value in a column")
# cpdef align(self, ): # TODO
# raise Exception("Columns with multiple sequences per line can't be aligned") # TODO discuss