WebService::CIA - Get information from the CIA World Factbook.
use WebService::CIA;
use WebService::CIA::Source::DBM;
use WebService::CIA::Source::Web;
# Get data from a pre-compiled DBM file
my $source = WebService::CIA::Source::DBM->new({ DBM => "factbook.dbm" });
my $cia = WebService::CIA->new({ Source => $source });
$fact = $cia->get("uk", "Population");
print $fact;
# Get data direct from the CIA World Factbook
my $source = WebService::CIA::Source::Web->new();
my $cia = WebService::CIA->new({ Source => $source });
$fact = $cia->get("uk", "Population");
print $fact;
A module which gets information from the CIA World Factbook.
The most recent version of the CIA World Factbook uses HTTPS to access its web
pages. As such, WebService::CIA requires Crypt::SSLeay which suffers from the
usual cryptographic export restriction mumbo jumbo. Sorry about that.
Users of ActiveState's ActivePerl should see
<http://aspn.activestate.com/ASPN/Downloads/ActivePerl/PPM/Repository>
for instructions on downloading a PPM of Crypt::SSLeay.
- "new(\%opts)"
- Creates a new WebService::CIA object. Takes a hashref, which must contain
a "Source" key whose value is a WebService::CIA::Storage
object.
- "get($country_code, $field)"
- This method retrieves information from the store.
It takes two arguments: a country code (as defined in FIPS
10-4 on
<https://www.cia.gov/library/publications/the-world-factbook/appendix/appendix-d.html>,
e.g. "uk", "us") and a field name (as defined in
<https://www.cia.gov/library/publications/the-world-factbook/docs/notesanddefs.html>,
e.g. "Population", "Agriculture - products").
(WebService::CIA::Parser also creates four extra fields:
"URL", "URL - Print", "URL - Flag", and
"URL - Map" which are the URLs of the country's Factbook page,
the printable version of that page, a GIF map of the country, and a GIF
flag of the country respectively.)
The field name is very case and punctuation sensitive.
It returns the value of the field, or
"undef" if the field or country isn't
in the store.
Note that when using WebService::CIA::Store::Web,
"get" will also return
"undef" if there is an error getting
the page.
- "get_hashref(\@countries, \@fields)"
- This method takes two arguments: an arrayref of country codes and an
arrayref of field names.
It returns a hashref of the form
{
'country1' => {
'field1' => 'value',
'field2' => 'value'
},
'country2' => {
'field1' => 'value',
'field2' => 'value'
}
}
- "get_all_hashref(\@countries)"
- Get all the fields available for countries.
It takes one argument, an arrayref of country codes.
It returns a hashref similar to the one from
"get_hashref" above, containing all
the fields available for each country.
- "source()"
- Get a reference to the WebService::CIA::Source object in use.
- $WebService::CIA::base_url
- Sets the base URL for the Factbook (currently
"https://www.cia.gov/library/publications/the-world-factbook/").
If the Factbook changes location, this can be changed to point to the new
location (assuming the relative structure of the Factbook is
unchanged).
Ian Malpass (ian-cpan@indecorous.com)
Copyright 2003-2007, Ian Malpass
This library is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
The CIA World Factbook's copyright information page
(<https://www.cia.gov/library/publications/the-world-factbook/docs/contributor_copyright.html>)
states:
The Factbook is in the public domain. Accordingly, it may be copied
freely without permission of the Central Intelligence Agency (CIA).
WebService::CIA::Parser, WebService::CIA::Source::DBM,
WebService::CIA::Source::Web