Interface WorkflowInputParameterProperties

This must be one or more IRIs of concept nodes that represents file formats which are allowed as input to this parameter, preferrably defined within an ontology. If no ontology is available, file formats may be tested by exact match.

If true, the file (or each file in the array) must be a UTF-8 text file 64 KiB or smaller, and the implementation must read the entire contents of the file (or file array) and place it in the contents field of the File object for use by expressions. If the size of the file is greater than 64 KiB, the implementation must raise a fatal error.

Specify the desired behavior for loading the listing field of a Directory object for use by expressions.

The order of precedence for loadListing is:

1. loadListing on an individual parameter
2. Inherited from LoadListingRequirement
3. By default: no_listing

Provides a pattern or expression specifying files or directories that should be included alongside the primary file. Secondary files may be required or optional. When not explicitly specified, secondary files specified for inputs are required and outputs are optional. An implementation must include matching Files and Directories in the secondaryFiles property of the primary file. These Files and Directories must be transferred and staged alongside the primary file. An implementation may fail workflow execution if a required secondary file does not exist.

If the value is an expression, the value of self in the expression must be the primary input or output File object to which this binding applies. The basename, nameroot and nameext fields must be present in self. For CommandLineTool outputs the path field must also be present. The expression must return a filename string relative to the path to the primary File, a File or Directory object with either path or location and basename fields set, or an array consisting of strings or File or Directory objects. It is legal to reference an unchanged File or Directory object taken from input as a secondaryFile. The expression may return "null" in which case there is no secondaryFile from that expression.

To work on non-filename-preserving storage systems, portable tool descriptions should avoid constructing new values from location, but should construct relative references using basename or nameroot instead.

If a value in secondaryFiles is a string that is not an expression, it specifies that the following pattern should be applied to the path of the primary file to yield a filename relative to the primary File:

1. If string ends with ? character, remove the last ? and mark the resulting secondary file as optional.
2. If string begins with one or more caret ^ characters, for each caret, remove the last file extension from the path (the last period . and all following characters). If there are no file extensions, the path is unchanged.
3. Append the remainder of the string to the end of the file path.

A value of true indicates that the file is read or written sequentially without seeking. An implementation may use this flag to indicate whether it is valid to stream file contents using a named pipe. Default: false.