| #!/usr/bin/env ruby |
| |
| # Copyright 2015, Google Inc. |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following disclaimer |
| # in the documentation and/or other materials provided with the |
| # distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| # Sample app that connects to a Route Guide service. |
| # |
| # Usage: $ path/to/route_guide_client.rb path/to/route_guide_db.json & |
| |
| this_dir = File.expand_path(File.dirname(__FILE__)) |
| lib_dir = File.join(File.dirname(this_dir), 'lib') |
| $LOAD_PATH.unshift(lib_dir) unless $LOAD_PATH.include?(lib_dir) |
| |
| require 'grpc' |
| require 'route_guide_services' |
| |
| include Routeguide |
| |
| GET_FEATURE_POINTS = [ |
| Point.new(latitude: 409_146_138, longitude: -746_188_906), |
| Point.new(latitude: 0, longitude: 0) |
| ] |
| |
| # runs a GetFeature rpc. |
| # |
| # - once with a point known to be present in the sample route database |
| # - once with a point that is not in the sample database |
| def run_get_feature(stub) |
| p 'GetFeature' |
| p '----------' |
| GET_FEATURE_POINTS.each do |pt| |
| resp = stub.get_feature(pt) |
| if resp.name != '' |
| p "- found '#{resp.name}' at #{pt.inspect}" |
| else |
| p "- found nothing at #{pt.inspect}" |
| end |
| end |
| end |
| |
| LIST_FEATURES_RECT = Rectangle.new( |
| lo: Point.new(latitude: 400_000_000, longitude: -750_000_000), |
| hi: Point.new(latitude: 420_000_000, longitude: -730_000_000)) |
| |
| # runs a ListFeatures rpc. |
| # |
| # - the rectangle to chosen to include most of the known features |
| # in the sample db. |
| def run_list_features(stub) |
| p 'ListFeatures' |
| p '------------' |
| resps = stub.list_features(LIST_FEATURES_RECT) |
| resps.each do |r| |
| p "- found '#{r.name}' at #{r.location.inspect}" |
| end |
| end |
| |
| # RandomRoute provides an Enumerable that yields a random 'route' of points |
| # from a list of Features. |
| class RandomRoute |
| def initialize(features, size) |
| @features = features |
| @size = size |
| end |
| |
| # yields a point, waiting between 0 and 1 seconds between each yield |
| # |
| # @return an Enumerable that yields a random point |
| def each |
| return enum_for(:each) unless block_given? |
| @size.times do |
| json_feature = @features[rand(0..@features.length)] |
| next if json_feature.nil? |
| location = json_feature['location'] |
| pt = Point.new( |
| Hash[location.each_pair.map { |k, v| [k.to_sym, v] }]) |
| p "- next point is #{pt.inspect}" |
| yield pt |
| sleep(rand(0..1)) |
| end |
| end |
| end |
| |
| # runs a RecordRoute rpc. |
| # |
| # - the rectangle to chosen to include most of the known features |
| # in the sample db. |
| def run_record_route(stub, features) |
| p 'RecordRoute' |
| p '-----------' |
| points_on_route = 10 # arbitrary |
| deadline = points_on_route # as delay b/w each is max 1 second |
| reqs = RandomRoute.new(features, points_on_route) |
| resp = stub.record_route(reqs.each, deadline) |
| p "summary: #{resp.inspect}" |
| end |
| |
| ROUTE_CHAT_NOTES = [ |
| RouteNote.new(message: 'doh - a deer', |
| location: Point.new(latitude: 0, longitude: 0)), |
| RouteNote.new(message: 'ray - a drop of golden sun', |
| location: Point.new(latitude: 0, longitude: 1)), |
| RouteNote.new(message: 'me - the name I call myself', |
| location: Point.new(latitude: 1, longitude: 0)), |
| RouteNote.new(message: 'fa - a longer way to run', |
| location: Point.new(latitude: 1, longitude: 1)), |
| RouteNote.new(message: 'soh - with needle and a thread', |
| location: Point.new(latitude: 0, longitude: 1)) |
| ] |
| |
| # runs a RouteChat rpc. |
| # |
| # sends a canned set of route notes and prints out the responses. |
| def run_route_chat(stub) |
| p 'Route Chat' |
| p '----------' |
| # TODO: decouple sending and receiving, i.e have the response enumerator run |
| # on its own thread. |
| resps = stub.route_chat(ROUTE_CHAT_NOTES) |
| resps.each { |r| p "received #{r.inspect}" } |
| end |
| |
| def main |
| stub = RouteGuide::Stub.new('localhost:50051') |
| run_get_feature(stub) |
| run_list_features(stub) |
| run_route_chat(stub) |
| if ARGV.length == 0 |
| p 'no feature database; skipping record_route' |
| exit |
| end |
| raw_data = [] |
| File.open(ARGV[0]) do |f| |
| raw_data = MultiJson.load(f.read) |
| end |
| run_record_route(stub, raw_data) |
| end |
| |
| main |