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• directoryPath - base directory for all files shared with the repository
• propertiesDirectoryPath - (optional) a path, that causes computed properties to be stored in an external file structure

• projections - lists one or more mappings from the repository to the filesystem. The format is "{workspace}:{repository path} => {path relative to directoryPath}".  See the section "Multiple Directories" below for how to handle multiple mappings.

• contentBasedSha1 - controls how internal identifiers are computed for files.  By default (contentBaseSha1 = true), Modeshape computes the SHA-1 checksum of a file's content every time the file is accessed.  For small files this creates a modest overhead.  For large files, however, this dramatically reduces performance, since generating the checksum can take several seconds per gigabyte of data.  For this reason, we recommend setting contentBasedSha1 to false when serving files larger than 100MB

• readonly - controls whether the contents of the filesbase directory for all files shared with the repository are read-only ( currently read-only is the only supported mode)
  

• extraPropertiesStorage - sets the format for storing "extra" properties (properties that can't be set using filesystem attributes).  Recommended values are "json" for the current JSON properties format, or "none" for disabling extra properties.  This property is ignored if propertiesDirectoryPath is set, since an external properties store will be used. (A warning or notice will appear in the logs indicating that the asserted preference here is overridden.)
  

• cacheTtlSeconds - the maximum time that cached entries are held before being refreshed.  Setting to a low value will make changes to the filesystem (like adding new files) show up more quickly in the REST API.  Setting to a higher value will improve performance for files that don't change often.
  

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