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import shutil
from astropy.io import fits
from ..common.db import DBClient
from ..common.utils import get_parameter, format_time_ms,create_dir
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class RefFitsApi(object):
REF_FITS_BIAS = "bias"
REF_FITS_FLAT = "flat"
REF_FITS_DARK = "dark"
REF_FITS_SKY = "sky"
REF_FITS_ARC = "arc"
REF_FITS_TYPES = [REF_FITS_BIAS, REF_FITS_FLAT, REF_FITS_DARK, REF_FITS_SKY, REF_FITS_ARC]
def __init__(self, sub_system = "ifs"):
self.sub_system = sub_system
self.root_dir = os.getenv("CSST_LOCAL_FILE_ROOT", "/opt/temp/csst")
self.check_dir()
self.db = DBClient()
def check_dir(self):
if not os.path.exists(self.root_dir):
os.mkdir(self.root_dir)
log.info("using [%s] as root directory", self.root_dir)
if not os.path.exists(os.path.join(self.root_dir, "refs")):
os.mkdir(os.path.join(self.root_dir, "refs"))
def find(self, **kwargs):
'''
parameter kwargs:
obs_time = [int]
file_name = [str]
exp_time = (start, end)
status = [int]
ref_type = [str]
return list of paths
'''
obs_time = get_parameter(kwargs, "obs_time")
file_name = get_parameter(kwargs, "file_name")
exp_time = get_parameter(kwargs, "exp_time", (None, format_time_ms(time.time())))
ccd_num = get_parameter(kwargs, "ccd_num")
status = get_parameter(kwargs, "status")
ref_type = get_parameter(kwargs, "ref_type")
sql = []
sql.append("select * from ifs_ref_fits where exp_time<='" + exp_time[1] + "'")
if exp_time[0] is not None:
sql.append(" and exp_time>='" + exp_time[0] + "'")
if obs_time is not None:
sql.append(" and obs_time=" + obs_time)
if ccd_num is not None:
sql.append(" and ccd_num=" + ccd_num)
if ref_type is not None:
sql.append(" and ref_type='" + ref_type + "'")
if status is not None:
sql.append(" and status=" + status)
if file_name:
sql = ["select * from ifs_ref_fits where filename='" + file_name + "'"]
sql.append(" order by exp_time desc")
_, r = self.db.select_many("".join(sql))
return r
def get(self, **kwargs):
fits_id = [int]
return dict or None
'''
fits_id = get_parameter(kwargs, "fits_id", -1)
r = self.db.select_one(
"select * from ifs_ref_fits where id=?", (fits_id,))
return r
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parameter kwargs:
fits_id = [int]
file_path = [str]
chunk_size = [int]
yield bytes of fits file
'''
fits_id = get_parameter(kwargs, "fits_id")
file_path = get_parameter(kwargs, "file_path")
if fits_id is None and file_path is None:
raise Exception("fits_id or file_path need to be defined")
if fits_id is not None:
r = self.db.select_one(
"select * from ifs_ref_fits where id=?", (fits_id))
if r is not None:
file_path = os.path.join(self.root_dir, r["file_path"])
if file_path is not None:
path = os.path.join(self.root_dir, file_path)
chunk_size = get_parameter(kwargs, "chunk_size", 1024)
with open(path, 'rb') as f:
while True:
data = f.read(chunk_size)
if not data:
break
yield data
def update_status(self, **kwargs):
'''
parameter kwargs:
fits_id = [int]
'''
fits_id = get_parameter(kwargs, "fits_id")
status = get_parameter(kwargs, "status")
existed = self.db.exists(
"select * from ifs_ref_fits where id=?",
(fits_id,)
)
if existed:
log.warning('%s not found' %(fits_id, ))
return
self.db.execute(
'update ifs_ref_fits set status=? where id=?',
(status, fits_id)
)
self.db.end()
def import2db(self, **kwargs):
'''
parameter kwargs:
file_path = [str]
ref_type = [str]
insert into database
'''
file_path = get_parameter(kwargs, "file_path")
if file_path is None:
raise Exception("file_path need to be defined")
file_full_path = os.path.join(self.root_dir, file_path)
if not os.path.exists(file_full_path):
raise Exception("%s not found"%(file_full_path))
file_name = os.path.basename(file_path)
existed = self.db.exists(
"select * from ifs_ref_fits where filename=?",
(file_name,)
if existed:
log.warning('%s has already been imported' %(file_path, ))
hu = fits.getheader(file_full_path)
obs_time = hu['obst'] if 'obst' in hu else ''
ccd_num = hu['ccd_num'] if 'ccd_num' in hu else 0
exp_time = format_time_ms(time.time())
ref_type = get_parameter(kwargs, "ref_type")
if ref_type is None:
if 'flat' in file_name.lower():
ref_type = 'flat'
elif 'bias' in file_name.lower():
ref_type = 'bias'
elif 'hgar' in file_name.lower():
ref_type = 'arc'
elif 'sky' in file_name.lower():
ref_type = 'sky'
else:
ref_type = ""
'INSERT INTO ifs_ref_fits (filename, obs_time, ccd_num, exp_time, file_path, ref_type, status, create_time) \
VALUES(?,?,?,?,?,?,?,?)',
(file_name, obs_time, ccd_num, exp_time, file_path, ref_type, 1, format_time_ms(time.time()))
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self.db.end()
log.info("ref fits %s imported.", file_path)
def write(self, **kwargs):
file_path = get_parameter(kwargs, "file_path")
new_file_dir = create_dir(os.path.join(self.root_dir, "refs"),
self.sub_system,
"/".join([str(datetime.datetime.now().year),"%02d"%(datetime.datetime.now().month),"%02d"%(datetime.datetime.now().day)]))
file_basename = os.path.basename(file_path)
new_file_path = os.path.join(new_file_dir, file_basename)
shutil.copyfile(file_path, new_file_path)
self.import2db(file_path = new_file_path.replace(self.root_dir, '')[1:])
def associate_raw(self, **kwargs):
raw_fits_ids = get_parameter(kwargs, "raw_fits_ids")
ref_fits_id = get_parameter(kwargs, "ref_fits_id")
if raw_fits_ids is None or ref_fits_id is None:
raise Exception("raw_fits_ids or ref_fits_id is None")
sql = ['INSERT INTO ifs_raw_ref (fit_id, ref_id, create_time) values ']
values = ["(%s,%s,%s)"%(i,ref_fits_id,format_time_ms(time.time())) for i in raw_fits_ids]
self.db.execute(sql + ",".join())
self.db.end()
log.info("%s associate to %s imported.", raw_fits_ids, ref_fits_id)