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15.2. File Variables
Overview
File variables can be used whenever a route starts with a File or FTP consumer endpoint, which implies that the underlying message body is of
java.io.File type. The file variables enable you to access various parts of the file pathname, almost as if you were invoking the methods of the java.io.File class (in fact, the file language extracts the information it needs from message headers that have been set by the File or FTP endpoint).
Starting directory
Some of file variables return paths that are defined relative to a starting directory, which is just the directory that is specified in the File or FTP endpoint. For example, the following File consumer endpoint has the starting directory,
./filetransfer (a relative path):
file:filetransfer
The following FTP consumer endpoint has the starting directory,
./ftptransfer (a relative path):
ftp://myhost:2100/ftptransfer
Naming convention of file variables
In general, the file variables are named after corresponding methods on the
java.io.File class. For example, the file:absolute variable gives the value that would be returned by the java.io.File.getAbsolute() method.
Note
This naming convention is not strictly followed, however. For example, there is no such method as
java.io.File.getSize().
Table of variables
Table 15.1, “Variables for the File Language” shows all of the variable supported by the file language.
| Variable | Type | Description |
|---|---|---|
file:name | String | The pathname relative to the starting directory. |
file:name.ext | String | The file extension (characters following the last . character in the pathname). |
file:name.noext | String | The pathname relative to the starting directory, omitting the file extension. |
file:onlyname | String | The final segment of the pathname. That is, the file name without the parent directory path. |
file:onlyname.noext | String | The final segment of the pathname, omitting the file extension. |
file:ext | String | The file extension (same as file:name.ext). |
file:parent | String | The pathname of the parent directory, including the starting directory in the path. |
file:path | String | The file pathname, including the starting directory in the path. |
file:absolute | Boolean | true, if the starting directory was specified as an absolute path; false, otherwise. |
file:absolute.path | String | The absolute pathname of the file. |
file:length | Long | The size of the referenced file. |
file:size | Long | Same as file:length. |
file:modified | java.util.Date | Date last modified. |
