Indirection objects in a cloud storage system
View Patent ↗Several embodiments using indirection objects to organize data in a cloud storage system are disclosed. An indirection object stores associations to different variants or segments of an object. The indirection object receives requests for the objects and responds with the appropriate variant, segment, or segments of the object. The variant, segment, or segments returned may vary from request to request.
1. A method for providing object data from a cloud storage system, the method comprising:
storing a first representation of an object in the cloud storage system;
creating an indirection object for the object;
assigning, in the indirection object for the object, a first attribute to the first representation of the object stored in the cloud storage system, the indirection object for the object storing an association between the first representation of the object stored in the cloud storage system and the first attribute;
storing a second representation of the object in the cloud storage system;
assigning, in the indirection object for the object, a second attribute to the second representation of the object stored in the cloud storage system, the indirection object for the object storing an association between the second representation of the object stored in the cloud storage system and the second attribute;
receiving, using the indirection object, a request to access the object stored in the cloud storage system;
determining, using the indirection object for the object, if the request includes a requested attribute;
if the request includes a requested attribute: returning, using the indirection object for the object, a response including the first representation of the object stored in the cloud storage system if the requested attribute matches the first attribute; and
returning, using the indirection object for the object, a response including the second representation of the object stored in the cloud storage system if the requested attribute matches the second attribute.
2. The method of claim 1 , further comprising: if the request does not include a requested attribute, returning a response including a preferred representation of the object.
3. The method of claim 1 , wherein the step of assigning the first attribute further comprises assigning a first file type to the first representation of the object; and
wherein the step of assigning the second attribute further comprises assigning a second file type to the second representation of the object.
4. The method of claim 1 , wherein the step of assigning the first attribute further comprises assigning a first version identifier to the first representation of the object; and
wherein the step of assigning the second attribute further comprises assigning a second version identifier to the second representation of the object.
5. The method of claim 1 ,
wherein the step of assigning the first attribute further comprises examining the first representation of the object to generate the first attribute; and
wherein the step of assigning the second attribute further comprises examining the second representation of the object to generate the second attribute.
6. The method of claim 1 , further comprising:
receiving a request to delete the object;
determining if the request to delete includes a second requested attribute;
if the request to delete includes a second requested attribute:
deleting the first representation of the object if the second requested attribute matches the first attribute; and
deleting the second representation of the object if the second requested attribute matches the second attribute.
7. The method of claim 6 , further comprising:
if the request does not include a second requested attribute, deleting the first representation of the object and the second representation of the object.