+from __future__ import print_function
+from __future__ import absolute_import
+from future.utils import listvalues
+from builtins import object
import collections
import hashlib
import os
from ._ranges import locators_and_ranges, Range
from .arvfile import StreamFileReader
from arvados.retry import retry_method
-from keep import *
-import config
-import errors
-from _normalize_stream import normalize_stream
+from arvados.keep import *
+from . import config
+from . import errors
+from ._normalize_stream import normalize_stream
class StreamReader(object):
def __init__(self, tokens, keep=None, debug=False, _empty=False,
self._keep = keep
self.num_retries = num_retries
- streamoffset = 0L
+ streamoffset = 0
# parse stream
for tok in tokens:
- if debug: print 'tok', tok
+ if debug: print('tok', tok)
if self._stream_name is None:
self._stream_name = tok.replace('\\040', ' ')
continue
s = re.match(r'^[0-9a-f]{32}\+(\d+)(\+\S+)*$', tok)
if s:
- blocksize = long(s.group(1))
- self._data_locators.append(Range(tok, streamoffset, blocksize))
+ blocksize = int(s.group(1))
+ self._data_locators.append(Range(tok, streamoffset, blocksize, 0))
streamoffset += blocksize
continue
s = re.search(r'^(\d+):(\d+):(\S+)', tok)
if s:
- pos = long(s.group(1))
- size = long(s.group(2))
+ pos = int(s.group(1))
+ size = int(s.group(2))
name = s.group(3).replace('\\040', ' ')
if name not in self._files:
- self._files[name] = StreamFileReader(self, [Range(pos, 0, size)], name)
+ self._files[name] = StreamFileReader(self, [Range(pos, 0, size, 0)], name)
else:
filereader = self._files[name]
filereader.segments.append(Range(pos, filereader.size(), size))
return self._files
def all_files(self):
- return self._files.values()
+ return listvalues(self._files)
def size(self):
n = self._data_locators[-1]
def readfrom(self, start, size, num_retries=None):
"""Read up to 'size' bytes from the stream, starting at 'start'"""
if size == 0:
- return ''
+ return b''
if self._keep is None:
self._keep = KeepClient(num_retries=self.num_retries)
data = []
for lr in locators_and_ranges(self._data_locators, start, size):
data.append(self._keepget(lr.locator, num_retries=num_retries)[lr.segment_offset:lr.segment_offset+lr.segment_size])
- return ''.join(data)
+ return b''.join(data)
def manifest_text(self, strip=False):
manifest_text = [self.name().replace(' ', '\\040')]
manifest_text.extend([d.locator for d in self._data_locators])
manifest_text.extend([' '.join(["{}:{}:{}".format(seg.locator, seg.range_size, f.name.replace(' ', '\\040'))
for seg in f.segments])
- for f in self._files.values()])
+ for f in listvalues(self._files)])
return ' '.join(manifest_text) + '\n'