def _prepare_batch(self, items):
"""Encode a list of records into their batch representation, returning
a tuple of the encoded physical key and value."""
keytups = [key for key, _ in reversed(items)]
phys = keylib.packs(keytups, self.prefix)
if len(items) == 1:
out = items[0][1]
else:
out = bytearray()
keylib.write_int(len(items), out.append, 0)
for _, data in items:
keylib.write_int(len(data), out.append, 0)
concat = ''.join(data for _, data in items)
out.extend(self.compressor.pack(concat))
return phys, bytes(out)
def _prepare_batch(self, items, packer):
packer_prefix = self.store._encoder_prefix.get(packer)
if not packer_prefix:
packer_prefix = self.store.add_encoder(packer)
keytups = [key for key, _ in reversed(items)]
phys = keylib.packs(self.prefix, keytups)
out = bytearray()
if len(items) == 1:
out.extend(packer_prefix)
out.extend(packer.pack(items[0][1]))
else:
keylib.write_int(len(items), out.append, 0)
for _, data in items:
keylib.write_int(len(data), out.append, 0)
out.extend(packer_prefix)
concat = ''.join(data for _, data in items)
out.extend(packer.pack(concat))
return phys, str(out)