NAME
FirstGoodURL - determines first successful URL in list
SYNOPSIS
use FirstGoodURL;
use strict;
my @URLs = (...);
my $match;
if ($match = FirstGoodURL->in(@URLs)) {
print "good URL: $match\n";
}
else {
print "no URL was alive\n";
}
if ($match = FirstGoodURL->with('image/png')->in(@URLs)) {
print "PNG found at $match\n";
}
else {
print "no PNG found\n";
}
if ($match = FirstGoodURL->with(200,204)->in(@URLs)) {
print "Status: OK or No Content at $match\n";
}
else {
print "no 200/204 found\n";
}
DESCRIPTION
This module uses the LWP suite to scan through a list of URLs.
It determines the first URL that returns a specified status code
(with defaults to `200'), and optionally, a specified Content-
type.
Methods
* `FirstGoodURL->in(...)'
Scans a list of URLs for a specified response code, and
possibly a requisite Content-type (see the `with' method
below)
* `FirstGoodURL->with(...)'
Sets a Content-type and/or Status requisite value for future
calls to `in'. It is destructive to the previous settings
given, so you must send all settings at once.
This is not backward compatible.
The argument list can contain a list of Status response
codes, and either a list of Content-type response values or
a regex to match acceptable Content-type response values.
These can appear in any order. The regex must be a compiled
one (formed by using `qr//').
This method returns the class name, so that you can daisy-
chain calls for readability/snazziness:
my $match = FirstGoodURL->with(qr/image/)->in(@URLs);
TODO
Here is a listing of things that might be added to future
versions.
* Object support (`with' attributes per object)
AUTHOR
Jeff "japhy" Pinyan
CPAN ID: PINYAN
japhy@pobox.com