import errno
import urlparse
import re
+import logging
import ruamel.yaml as yaml
import arvados.util
import arvados.collection
import arvados.arvfile
+import arvados.errors
from schema_salad.ref_resolver import DefaultFetcher
+logger = logging.getLogger('arvados.cwl-runner')
+
class CollectionFsAccess(cwltool.stdfsaccess.StdFsAccess):
"""Implement the cwltool FsAccess interface for Arvados Collections."""
self.collections = {}
def get_collection(self, path):
- p = path.split("/")
- if p[0].startswith("keep:") and arvados.util.keep_locator_pattern.match(p[0][5:]):
- pdh = p[0][5:]
+ sp = path.split("/", 1)
+ p = sp[0]
+ if p.startswith("keep:") and arvados.util.keep_locator_pattern.match(p[5:]):
+ pdh = p[5:]
if pdh not in self.collections:
self.collections[pdh] = arvados.collection.CollectionReader(pdh, api_client=self.api_client,
keep_client=self.keep_client)
- return (self.collections[pdh], "/".join(p[1:]))
+ return (self.collections[pdh], sp[1] if len(sp) == 2 else None)
else:
return (None, path)
def exists(self, fn):
collection, rest = self.get_collection(fn)
if collection:
- return collection.exists(rest)
+ if rest:
+ return collection.exists(rest)
+ else:
+ return True
else:
return super(CollectionFsAccess, self).exists(fn)
return os.path.realpath(path)
class CollectionFetcher(DefaultFetcher):
- def __init__(self, cache, session, api_client=None, keep_client=None):
+ def __init__(self, cache, session, api_client=None, keep_client=None, num_retries=4):
super(CollectionFetcher, self).__init__(cache, session)
self.api_client = api_client
self.fsaccess = CollectionFsAccess("", api_client=api_client, keep_client=keep_client)
+ self.num_retries = num_retries
def fetch_text(self, url):
if url.startswith("keep:"):
with self.fsaccess.open(url, "r") as f:
return f.read()
if url.startswith("arvwf:"):
- return self.api_client.workflows().get(uuid=url[6:]).execute()["definition"]
+ record = self.api_client.workflows().get(uuid=url[6:]).execute(num_retries=self.num_retries)
+ definition = record["definition"] + ('\nlabel: "%s"\n' % record["name"].replace('"', '\\"'))
+ return definition
return super(CollectionFetcher, self).fetch_text(url)
def check_exists(self, url):
- if url.startswith("keep:"):
- return self.fsaccess.exists(url)
- if url.startswith("arvwf:"):
- if self.fetch_text(url):
+ try:
+ if url.startswith("http://arvados.org/cwl"):
return True
+ if url.startswith("keep:"):
+ return self.fsaccess.exists(url)
+ if url.startswith("arvwf:"):
+ if self.fetch_text(url):
+ return True
+ except arvados.errors.NotFoundError:
+ return False
+ except:
+ logger.exception("Got unexpected exception checking if file exists:")
+ return False
return super(CollectionFetcher, self).check_exists(url)
def urljoin(self, base_url, url):
workflow_uuid_pattern = re.compile(r'[a-z0-9]{5}-7fd4e-[a-z0-9]{15}')
pipeline_template_uuid_pattern = re.compile(r'[a-z0-9]{5}-p5p6p-[a-z0-9]{15}')
-def collectionResolver(api_client, document_loader, uri):
+def collectionResolver(api_client, document_loader, uri, num_retries=4):
if workflow_uuid_pattern.match(uri):
return "arvwf:%s#main" % (uri)
if pipeline_template_uuid_pattern.match(uri):
- pt = api_client.pipeline_templates().get(uuid=uri).execute()
+ pt = api_client.pipeline_templates().get(uuid=uri).execute(num_retries=num_retries)
return "keep:" + pt["components"].values()[0]["script_parameters"]["cwl:tool"]
p = uri.split("/")