This section introduces a set of status codes for the
defined API to indicate the system behaviour. It uses a subset
of the HTML/1.1 status
codes for general informations (e.g., bad request), but also system specific
ones (e.g., property not defined in source format). The
specific status codes have been arranged in the HTML/1.1 status codes categories. These codes can be retrieved by
calling the getDiagnosis method.
The set of status codes my be enlarged or changed in later versions of this document. The numerical code range for the system specific status codes start with x62 (x = number of HTML/1.1 status codes category and 62 = MA).
| Numerical Code | Textual Description | Example |
| 200 | Ok | property delivered correctly |
| 204 | No Content | property retrieved without content |
| 206 | Partial Content | only a subset of the available data stored in the result set |
| 262 | Syntactic Mapping | retrieval used a syntactic mapping |
| 263 | Semantic Mapping | retrieval used a semantic mapping |
| 264 | Structured Return Value | result is structured |
| 265 | Unstructured Return Value | result is unstructured |
| 400 | Bad Request | syntactical error with respect to the GET method used |
| 404 | Not Found | the queries resource is not found |
| 415 | Unsupported Media Type | get duration call on an image data store |
| 462 | Property not defined in Source Format | location is not defined in MediaRSS |
| 500 | Internal Server Error | internal library (e.g., extractor) crashes |
| 501 | Not Implemented | only a subset of GET methods for properties implemented |