def object_fetch(self, account, container, obj, ranges=None,
headers=None):
meta, raw_chunks = self.object_analyze(
account, container, obj, headers=headers)
chunk_method = meta['chunk-method']
storage_method = STORAGE_METHODS.load(chunk_method)
chunks = _sort_chunks(raw_chunks, storage_method.ec)
if storage_method.ec:
stream = self._fetch_stream_ec(meta, chunks, ranges,
storage_method, headers)
else:
stream = self._fetch_stream(meta, chunks, ranges, storage_method,
headers)
return meta, stream
def _object_create(self, account, container, obj_name, source,
sysmeta, metadata=None, policy=None, headers=None):
meta, raw_chunks = self._content_prepare(
account, container, obj_name, sysmeta['content_length'],
policy=policy, headers=headers)
sysmeta['chunk_size'] = int(meta['X-oio-ns-chunk-size'])
sysmeta['id'] = meta[object_headers['id']]
sysmeta['version'] = meta[object_headers['version']]
sysmeta['policy'] = meta[object_headers['policy']]
sysmeta['mime_type'] = meta[object_headers['mime_type']]
sysmeta['chunk_method'] = meta[object_headers['chunk_method']]
storage_method = STORAGE_METHODS.load(sysmeta['chunk_method'])
chunks = _sort_chunks(raw_chunks, storage_method.ec)
sysmeta['content_path'] = obj_name
sysmeta['container_id'] = utils.name2cid(account, container)
if storage_method.ec:
handler = ECWriteHandler(source, sysmeta, chunks, storage_method,
headers=headers)
else:
handler = ReplicatedWriteHandler(source, sysmeta, chunks,
storage_method, headers=headers)
final_chunks, bytes_transferred, content_checksum = handler.stream()
etag = sysmeta['etag']
if etag and etag.lower() != content_checksum.lower():
raise exc.EtagMismatch(
"given etag %s != computed %s" % (etag, content_checksum))
sysmeta['etag'] = content_checksum
h = {}
h[object_headers['size']] = bytes_transferred
h[object_headers['hash']] = sysmeta['etag']
h[object_headers['version']] = sysmeta['version']
h[object_headers['id']] = sysmeta['id']
h[object_headers['policy']] = sysmeta['policy']
h[object_headers['mime_type']] = sysmeta['mime_type']
h[object_headers['chunk_method']] = sysmeta['chunk_method']
if metadata:
for k, v in metadata.iteritems():
h['%sx-%s' % (constants.OBJECT_METADATA_PREFIX, k)] = v
m, body = self._content_create(account, container, obj_name,
final_chunks, headers=h)
return final_chunks, bytes_transferred, content_checksum
def setUp(self):
self.chunk_method = 'plain/nb_copy=3'
storage_method = STORAGE_METHODS.load(self.chunk_method)
self.storage_method = storage_method
self.cid = \
'3E32B63E6039FD3104F63BFAE034FADAA823371DD64599A8779BA02B3439A268'
self.sysmeta = {
'id': '705229BB7F330500A65C3A49A3116B83',
'version': '1463998577463950',
'chunk_method': self.chunk_method,
'container_id': self.cid,
'policy': 'REPLI3',
'content_path': 'test',
}
self._meta_chunk = [
{'url': 'http://127.0.0.1:7000/0', 'pos': '0'},
{'url': 'http://127.0.0.1:7001/1', 'pos': '0'},
{'url': 'http://127.0.0.1:7002/2', 'pos': '0'},
]
def setUp(self):
self.chunk_method = 'ec/algo=liberasurecode_rs_vand,k=6,m=2'
storage_method = STORAGE_METHODS.load(self.chunk_method)
self.storage_method = storage_method
self.cid = \
'3E32B63E6039FD3104F63BFAE034FADAA823371DD64599A8779BA02B3439A268'
self.sysmeta = {
'id': '705229BB7F330500A65C3A49A3116B83',
'version': '1463998577463950',
'chunk_method': self.chunk_method,
'container_id': self.cid,
'policy': 'EC',
'content_path': 'test',
}
self._meta_chunk = [
{'url': 'http://127.0.0.1:7000/0', 'pos': '0.0', 'num': 0},
{'url': 'http://127.0.0.1:7001/1', 'pos': '0.1', 'num': 1},
{'url': 'http://127.0.0.1:7002/2', 'pos': '0.2', 'num': 2},
{'url': 'http://127.0.0.1:7003/3', 'pos': '0.3', 'num': 3},
{'url': 'http://127.0.0.1:7004/4', 'pos': '0.4', 'num': 4},
{'url': 'http://127.0.0.1:7005/5', 'pos': '0.5', 'num': 5},
{'url': 'http://127.0.0.1:7006/6', 'pos': '0.6', 'num': 6},
{'url': 'http://127.0.0.1:7007/7', 'pos': '0.7', 'num': 7},
]
