CAOM2.5 (CADC-13449)

caom2/caom2/__init__.py

@@ -1,5 +1,3 @@
-#
-# -*- coding: utf-8 -*-
 # ***********************************************************************
 # ******************  CANADIAN ASTRONOMY DATA CENTRE  *******************
 # *************  CENTRE CANADIEN DE DONNÉES ASTRONOMIQUES  **************
@@ -86,6 +84,7 @@
 from .checksum import *  # noqa
 from .chunk import *  # noqa
 from .common import *  # noqa
+from .dali import *  # noqa
 from .diff import *  # noqa
 from .obs_reader_writer import *  # noqa
 from .observation import *  # noqa

caom2/caom2/artifact.py

@@ -2,7 +2,7 @@
 # ******************  CANADIAN ASTRONOMY DATA CENTRE  *******************
 # *************  CENTRE CANADIEN DE DONNÉES ASTRONOMIQUES  **************
 #
-#  (c) 2022.                            (c) 2022.
+#  (c) 2025.                            (c) 2025.
 #  Government of Canada                 Gouvernement du Canada
 #  National Research Council            Conseil national de recherches
 #  Ottawa, Canada, K1A 0R6              Ottawa, Canada, K1A 0R6
@@ -74,10 +74,10 @@
 from urllib.parse import urlparse
 
 from . import caom_util
-from .chunk import ProductType
-from .common import AbstractCaomEntity
-from .common import ChecksumURI, OrderedEnum
+from .common import AbstractCaomEntity, CaomObject, compute_bucket
+from .common import OrderedEnum
 from .part import Part
+from .chunk import DataLinkSemantics
 from datetime import datetime
 
 
@@ -95,17 +95,39 @@
     META = "meta"
 
 
+class ArtifactDescription(CaomObject):
+    """ Short description with a URI reference for details"""
+
+    def __init__(self, uri, description):
+        super().__init__()
+        try:
+            urlparse(uri)
+        except ValueError:
+            raise TypeError('Expected any IVOA URI for ArtifactDescription.uri, '
+                            'received {}'.format(uri))
+        self._uri = uri
+        self._description = description
+
+    @property
+    def uri(self):
+        return self._uri
+
+    @property
+    def description(self):
+        return self._description
+
+
 class Artifact(AbstractCaomEntity):
-    """Contains the meta data assocaited with a file.
+    """Contains the metadata associated with a file.
 
     - location of the file (uri)
     - the http content-type
     - size of the file (content-lenght)
 
     As well as a pointer (parts) to content of the file.
 
-    eg:  Artifact('ad:CFHT/1234567o')
-    where 'ad:CFHT/1234567o' is a uri that refernce the file...
+    eg:  Artifact('cadc:CFHT/1234567o')
+    where 'cadc:CFHT/1234567o' is an uri that references the file...
 
     """
 
@@ -118,17 +140,20 @@
                  content_checksum=None,
                  content_release=None,
                  content_read_groups=None,
-                 parts=None
+                 parts=None,
+                 description_id=None
                  ):
         """
-        Initialize a Artifact instance.
+        Initialize an Artifact instance.
 
         Arguments: uri of the artifact.  eg:
            vos://cadc.nrc.ca!vospace/APASS/apass_north/proc/100605/n100605.fz
            ad:CFHT/123456p
         """
         super(Artifact, self).__init__()
-        self.uri = uri
+        caom_util.validate_uri(uri)
+        self._uri = uri
+        self._uri_bucket = compute_bucket(uri)
         self.product_type = product_type
         self.release_type = release_type
         self.content_type = content_type
@@ -139,6 +164,7 @@
         if parts is None:
             parts = caom_util.TypedOrderedDict(Part, )
         self.parts = parts
+        self.description_id = description_id
 
     def _key(self):
         return self.uri
@@ -160,15 +186,9 @@
         """
         return self._uri
 
-    @uri.setter
-    def uri(self, value):
-        caom_util.type_check(value, str, 'uri')
-        uri = urlparse(value)
-        if not uri.scheme:
-            raise ValueError('URI without scheme: {}'.format(value))
-        uri_str = uri.geturl()
-        caom_util.value_check(value, None, None, 'uri', override=uri_str)
-        self._uri = uri_str
+    @property
+    def uri_bucket(self):
+        return self._uri_bucket
 
     @property
     def product_type(self):
@@ -183,7 +203,7 @@
 
     @product_type.setter
     def product_type(self, value):
-        caom_util.type_check(value, ProductType, "product_type", False)
+        caom_util.type_check(value, DataLinkSemantics, "product_type", False)
         self._product_type = value
 
     @property
@@ -235,7 +255,7 @@
     def content_checksum(self):
         """the checksum value for the artifact data
 
-        type: ChecksumURI
+        type: uri
 
         """
         return self._content_checksum
@@ -245,7 +265,7 @@
         if value is None:
             self._content_checksum = None
         else:
-            caom_util.type_check(value, ChecksumURI, "checksum_uri", False)
+            caom_util.type_check(value, str, "checksum_uri", False)
             self._content_checksum = value
 
     @property
@@ -306,3 +326,13 @@
             caom_util.type_check(value, caom_util.TypedOrderedDict, 'parts',
                                  override=False)
             self._parts = value
+
+    @property
+    def description_id(self):
+        return self._description_id
+
+    @description_id.setter
+    def description_id(self, value):
+        if value is not None:
+            caom_util.type_check(value, str, 'description_id')
+        self._description_id = value

caom2/caom2/caom_util.py

@@ -2,7 +2,7 @@
 # ******************  CANADIAN ASTRONOMY DATA CENTRE  *******************
 # *************  CENTRE CANADIEN DE DONNÉES ASTRONOMIQUES  **************
 #
-#  (c) 2016.                            (c) 2016.
+#  (c) 2025.                            (c) 2025.
 #  Government of Canada                 Gouvernement du Canada
 #  National Research Council            Conseil national de recherches
 #  Ottawa, Canada, K1A 0R6              Ottawa, Canada, K1A 0R6
@@ -74,7 +74,6 @@
 the first point of use could be implemented.  This helps the data
 engineer get the correct meta data more quickly.
 """
-
 import sys
 import collections
 from datetime import datetime
@@ -84,7 +83,7 @@
 
 
 __all__ = ['TypedList', 'TypedSet', 'TypedOrderedDict', 'ClassProperty',
-           'URISet']
+           'URISet', 'validate_uri']
 
 # TODO both these are very bad, implement more sensibly
 IVOA_DATE_FORMAT = "%Y-%m-%dT%H:%M:%S.%f"
@@ -235,8 +234,8 @@
 
     def check(self, v):
         if not isinstance(v, self._oktypes):
-            raise TypeError("Wrong type in list. OK Types: {0}".
-                            format(self._oktypes))
+            raise TypeError("Wrong type ({0}) in list. OK Types: {1}".
+                            format(type(v), self._oktypes))
 
     def __len__(self):
         return len(self.list)
@@ -328,6 +327,22 @@
             return False
 
 
+def validate_uri(uri, scheme=None):
+    """
+    Validates a URI. If a scheme is provided, the URI must have that scheme.
+    :param uri:
+    :param scheme:
+    :raise TypeError: when uri not valid
+    """
+    if uri:
+        tmp = urlsplit(uri)
+        if scheme and scheme != tmp.scheme:
+            raise TypeError("Invalid URI scheme: {}".format(uri))
+        if tmp.geturl() == uri:
+            return
+    raise TypeError("Invalid URI: " + uri)
+
+
 class URISet(TypedSet):
     """
     Class that customizes a TypedSet to check for URIs
@@ -350,13 +365,7 @@
         :param v: value to check
         :return:
         """
-        if v:
-            tmp = urlsplit(v)
-            if self.scheme and tmp.scheme != self.scheme:
-                raise TypeError("Invalid URI scheme: {}".format(v))
-            if tmp.geturl() == v:
-                return
-        raise TypeError("Invalid URI: " + v)
+        validate_uri(v, self.scheme)
 
 
 class TypedOrderedDict(collections.OrderedDict):