add back the contents of this directory

[spider.git] / Geo / TAF / example / fetch_weather.pl

diff --git a/Geo/TAF/example/fetch_weather.pl b/Geo/TAF/example/fetch_weather.pl
new file mode 100755 (executable)
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+++ b/Geo/TAF/example/fetch_weather.pl
@@ -0,0 +1,101 @@
+#!/usr/bin/perl -w
+
+# $Id$
+
+# this has been taken from Geo::METAR and modified
+#
+# Brief Description
+# =================
+#
+# fetch_temp.pl is a program that demonstrates how to get the current
+# temperature from a nearby (or not) airport using Geo::METAR and the
+# LWP modules.
+#
+# Given an airport site code on the command line, fetch_temp.pl
+# fetches the current temperature and displays it on the
+# command-line. For fun, here are some example airports:
+#
+# LA     : KLAX
+# Dallas : KDFW
+# Detroit: KDTW
+# Chicago: KMDW
+#
+# and of course: EGSH (Norwich)
+#
+#
+
+# Get the site code.
+my ($debug, $raw);
+my @sort;
+while ($ARGV[0] =~ /^-/ && @ARGV > 1) {
+       my @f = split //, shift @ARGV;
+       shift @f;
+       foreach $f (@f) {
+               push @sort, 'taf' if $f eq 't' && ! grep $_ eq 'taf', @sort; 
+               push @sort, 'staf' if $f eq 's' && ! grep $_ eq 'staf', @sort; 
+               push @sort, 'metar' if $f eq 'm' && ! grep $_ eq 'metar', @sort; 
+               $debug++ if $f eq 'x';
+               $raw++ if $f eq 'r';
+       }
+}
+push @sort, 'metar' unless @sort;
+
+my $site_code = uc shift @ARGV;
+
+die "Usage: $0 [-mts] <site_code>\n" unless $site_code;
+
+# Get the modules we need.
+
+use Geo::TAF;
+use LWP::UserAgent;
+use strict;
+
+my $sort;
+
+foreach $sort (@sort) {
+
+       my $ua = new LWP::UserAgent;
+
+       my $req = new HTTP::Request GET =>
+               "http://weather.noaa.gov/cgi-bin/mget$sort.pl?cccc=$site_code";
+       
+       my $response = $ua->request($req);
+       
+       if ($response->is_success) {
+               
+               # Yep, get the data and find the METAR.
+               
+               my $m = new Geo::TAF;
+               my $data;
+               $data = $response->as_string;               # grap response
+               $data =~ s/\n//go;                          # remove newlines
+               $data =~ m/($site_code\s\d+Z.*?)</go;       # find the METAR string
+               my $metar = $1;                             # keep it
+               
+               # Sanity check
+               
+               if (length($metar)<10) {
+                       die "METAR is too short! Something went wrong.";
+               }
+               
+               # pass the data to the METAR module.
+               if ($sort =~ /taf$/) {
+                       $m->taf($metar);
+               } else {
+                       $m->metar($metar);
+               }
+               print $m->raw, "\n" if $raw;
+               print join "\n", $m->as_chunk_strings, "\n" if $debug;
+               print $m->as_string, "\n";
+               
+       } else {
+               
+               print $response->as_string, "\n";
+               
+       } 
+       print "\n";
+}
+
+exit 0;
+
+