various things from TomH

This commit is contained in:
Steve Coast 2007-05-29 23:25:41 +00:00
parent 4a078e5c10
commit a0e8c35c1b
5 changed files with 103 additions and 102 deletions

View file

@ -243,6 +243,7 @@ class ApiController < ApplicationController
#exit when we have too many requests
if @@count > MAX_COUNT
@@count = COUNT
exit!
end

View file

@ -56,6 +56,10 @@ class Trace < ActiveRecord::Base
"/home/osm/icons/#{id}_icon.gif"
end
def trace_name
"/home/osm/gpx/#{id}.gpx"
end
def to_xml_node
el1 = XML::Node.new 'gpx_file'
el1['id'] = self.id.to_s
@ -68,4 +72,85 @@ class Trace < ActiveRecord::Base
el1['timestamp'] = self.timestamp.xmlschema
return el1
end
def import
begin
logger.info("GPX Import importing #{name} (#{id}) from #{user.email}")
# TODO *nix specific, could do to work on windows... would be functionally inferior though - check for '.gz'
filetype = `file -b #{trace_name}`.chomp
gzipped = filetype =~ /^gzip/
zipped = filetype =~ /^Zip/
if gzipped
filename = tempfile = "/tmp/#{rand}"
system("gunzip -c #{trace_name} > #{filename}")
elsif zipped
filename = tempfile = "/tmp/#{rand}"
system("unzip -p #{trace_name} > #{filename}")
else
filename = trace_name
end
gpx = OSM::GPXImporter.new(filename)
f_lat = 0
f_lon = 0
first = true
Tracepoint.delete_all(['gpx_id = ?', self.id])
gpx.points do |point|
if first
f_lat = point['latitude']
f_lon = point['longitude']
end
tp = Tracepoint.new
tp.lat = point['latitude'].to_f
tp.lng = point['longitude'].to_f
tp.altitude = point['altitude'].to_f
tp.user_id = user.id
tp.gpx_id = id
tp.trackid = point['segment'].to_i
tp.save!
end
if gpx.actual_points > 0
max_lat = Tracepoint.maximum('latitude', :conditions => ['gpx_id = ?', id])
min_lat = Tracepoint.minimum('latitude', :conditions => ['gpx_id = ?', id])
max_lon = Tracepoint.maximum('longitude', :conditions => ['gpx_id = ?', id])
min_lon = Tracepoint.minimum('longitude', :conditions => ['gpx_id = ?', id])
max_lat = max_lat.to_f / 1000000
min_lat = min_lat.to_f / 1000000
max_lon = max_lon.to_f / 1000000
min_lon = min_lon.to_f / 1000000
self.latitude = f_lat
self.longitude = f_lon
self.large_picture = gpx.get_picture(min_lat, min_lon, max_lat, max_lon, gpx.actual_points)
self.icon_picture = gpx.get_icon(min_lat, min_lon, max_lat, max_lon)
self.size = gpx.actual_points
self.inserted = true
self.save
Notifier::deliver_gpx_success(self, gpx.possible_points)
else
FileUtils.rm_f("/home/osm/gpx/#{id}.gpx")
self.destroy
Notifier::deliver_gpx_failure(self, '0 points parsed ok. Do they all have lat,lng,alt,timestamp?')
end
logger.info "done trace #{id}"
rescue Exception => ex
logger.info ex
ex.backtrace.each {|l| logger.info l }
FileUtils.rm_f("/home/osm/gpx/#{id}.gpx")
self.destroy
Notifier::deliver_gpx_failure(self, ex.to_s + ex.backtrace.join("\n") )
ensure
FileUtils.rm_f(tempfile) if tempfile
end
end
end