def _decache(self, bytes):
# _find_orphans()
# _update_cache(clean=True)
if bytes <= 0:
return 0
LOG.warning("CliMetLab cache: trying to free %s", bytes_to_string(bytes))
total = 0
with self.connection as db:
latest = self._latest_date()
for stmt in (
"SELECT * FROM cache WHERE size IS NOT NULL AND owner='orphans' AND creation_date < ?",
"SELECT * FROM cache WHERE size IS NOT NULL AND creation_date < ? ORDER BY last_access ASC",
):
for entry in db.execute(stmt, (latest,)):
total += self._delete_entry(entry)
if total >= bytes:
LOG.warning(
"CliMetLab cache: freed %s from cache",
bytes_to_string(bytes),
)
return total
LOG.warning("CliMetLab cache: could not free %s", bytes_to_string(bytes))
def _repr_html_(self):
update_cache()
html = [css("table")]
with connection() as db:
for n in db.execute("SELECT * FROM cache"):
html.append("<table class='climetlab'>")
html.append("<td><td colspan='2'>%s</td></tr>" % (n["path"], ))
for k in [x for x in n.keys() if x != "path"]:
v = bytes_to_string(n[k]) if k == "size" else n[k]
html.append("<td><td>%s</td><td>%s</td></tr>" % (k, v))
html.append("</table>")
html.append("<br>")
return "".join(html)
def _repr_html_(self):
"""Return a html representation of the cache .
Returns
-------
str
HTML status of the cache.
"""
html = [css("table")]
with self.connection as db:
for n in db.execute("SELECT * FROM cache"):
html.append("<table class='climetlab'>")
html.append("<td><td colspan='2'>%s</td></tr>" % (n["path"],))
for k in [x for x in n.keys() if x not in ("path", "owner_data")]:
v = bytes_to_string(n[k]) if k == "size" else n[k]
html.append("<td><td>%s</td><td>%s</td></tr>" % (k, v))
html.append("</table>")
html.append("<br>")
return "".join(html)
def test_bytes():
assert bytes_to_string(10) == "10"
assert bytes_to_string(1024) == "1 KiB"
assert bytes_to_string(1024 * 1024) == "1 MiB"