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Description of the general method of creating the initial object heirachry in DOMS based on a tree structure in a file system |
General description
The goal of this document is to describe the work of transforming data files and accompanying metadata files in a tree structure on disk to a Content-Model less object tree in DOMS.
For this to be generic some assumptions needs to be taken:
- Data files and metadata files that belongs together have the same prefix
- Data files can be recognised by their file suffix.
- Checksum files is supposed to be represented as objects, but as a property of an object. They will thus be skipped as objects in the tree, but used for creation in the creation of the object they belong to.
General rules:
- Directories are treated as a "hasPart" relation to a new object.
- The name of the relation is the directory name
- The new object's label is the path of the directory.
- A data file is a file containing data. The actual data is stored outside DOMS.
- A metadata file is a file containing metadata. The file is stored inside DOMS.
- A grouping of files (files having a common prefix) is represented as a object with:
- Datastreams for each metadata file
- "hasFile" relations to data files