sunlabs.brazil.filter
Class ExecFilter
public
class
ExecFilter
extends Object
implements Filter
Filter to Run all content through an external process filter.
The content is provided as the standard input to a command, that is
expected to return the new content.
The following server properties are used:
- command
- The command to exec. The content is supplied as stdin, and
the filtered output is expected on stdout. ${...} substitutions
Are done at each filter invocation.
- types
- A regular expression that matches the content types for the
content we wish to filter
- type
- This property is set to the content type of the content just
before command is evaluated.
- newType
- This property, if set, is used as the new content type.
It is evaluated for ${...} at each conversion.
- error
- If the command failed, this property will contain the error
message. If the command generated output on stderr, this property
will contain the output.
The following configuration will halve the size of all jpeg and
gif images, using the
convert program from ImageMagic.
prefix.types=image/(jpeg|gif)
prefix.command= convert -sample 50% \
${map.${prefix.type}}:- ${map.${prefix.type}}:-
map.image/gif=GIF
map.image/jpeg=JPEG
Version: 2.2
Author: Stephen Uhler
Run content through filter. Process ${...}
public boolean init(
Server server, String prefix)
public boolean respond(
Request request)
This is the request object before the content was fetched
Only filter content types that match