Initial checkin of gRPC to third_party/

third_party/grpc/src/ruby/bin/math_client.rb

+#!/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 accesses a Calc service running on a Ruby gRPC server and
+# helps validate RpcServer as a gRPC server using proto2 serialization.
+#
+# Usage: $ path/to/math_client.rb
+
+this_dir = File.expand_path(File.dirname(__FILE__))
+lib_dir = File.join(File.dirname(this_dir), 'lib')
+$LOAD_PATH.unshift(lib_dir) unless $LOAD_PATH.include?(lib_dir)
+$LOAD_PATH.unshift(this_dir) unless $LOAD_PATH.include?(this_dir)
+
+require 'grpc'
+require 'math_services'
+require 'optparse'
+
+include GRPC::Core::TimeConsts
+
+def do_div(stub)
+  GRPC.logger.info('request_response')
+  GRPC.logger.info('----------------')
+  req = Math::DivArgs.new(dividend: 7, divisor: 3)
+  GRPC.logger.info("div(7/3): req=#{req.inspect}")
+  resp = stub.div(req, timeout: INFINITE_FUTURE)
+  GRPC.logger.info("Answer: #{resp.inspect}")
+  GRPC.logger.info('----------------')
+end
+
+def do_sum(stub)
+  # to make client streaming requests, pass an enumerable of the inputs
+  GRPC.logger.info('client_streamer')
+  GRPC.logger.info('---------------')
+  reqs = [1, 2, 3, 4, 5].map { |x| Math::Num.new(num: x) }
+  GRPC.logger.info("sum(1, 2, 3, 4, 5): reqs=#{reqs.inspect}")
+  resp = stub.sum(reqs)  # reqs.is_a?(Enumerable)
+  GRPC.logger.info("Answer: #{resp.inspect}")
+  GRPC.logger.info('---------------')
+end
+
+def do_fib(stub)
+  GRPC.logger.info('server_streamer')
+  GRPC.logger.info('----------------')
+  req = Math::FibArgs.new(limit: 11)
+  GRPC.logger.info("fib(11): req=#{req.inspect}")
+  resp = stub.fib(req, timeout: INFINITE_FUTURE)
+  resp.each do |r|
+    GRPC.logger.info("Answer: #{r.inspect}")
+  end
+  GRPC.logger.info('----------------')
+end
+
+def do_div_many(stub)
+  GRPC.logger.info('bidi_streamer')
+  GRPC.logger.info('-------------')
+  reqs = []
+  reqs << Math::DivArgs.new(dividend: 7, divisor: 3)
+  reqs << Math::DivArgs.new(dividend: 5, divisor: 2)
+  reqs << Math::DivArgs.new(dividend: 7, divisor: 2)
+  GRPC.logger.info("div(7/3), div(5/2), div(7/2): reqs=#{reqs.inspect}")
+  resp = stub.div_many(reqs, timeout: INFINITE_FUTURE)
+  resp.each do |r|
+    GRPC.logger.info("Answer: #{r.inspect}")
+  end
+  GRPC.logger.info('----------------')
+end
+
+def load_test_certs
+  this_dir = File.expand_path(File.dirname(__FILE__))
+  data_dir = File.join(File.dirname(this_dir), 'spec/testdata')
+  files = ['ca.pem', 'server1.key', 'server1.pem']
+  files.map { |f| File.open(File.join(data_dir, f)).read }
+end
+
+def test_creds
+  certs = load_test_certs
+  GRPC::Core::ChannelCredentials.new(certs[0])
+end
+
+def main
+  options = {
+    'host' => 'localhost:7071',
+    'secure' => false
+  }
+  OptionParser.new do |opts|
+    opts.banner = 'Usage: [--host <hostname>:<port>] [--secure|-s]'
+    opts.on('--host HOST', '<hostname>:<port>') do |v|
+      options['host'] = v
+    end
+    opts.on('-s', '--secure', 'access using test creds') do |v|
+      options['secure'] = v
+    end
+  end.parse!
+
+  # The Math::Math:: module occurs because the service has the same name as its
+  # package. That practice should be avoided by defining real services.
+
+  p options
+  if options['secure']
+    stub_opts = {
+      :creds => test_creds,
+      GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.fr'
+    }
+    p stub_opts
+    p options['host']
+    stub = Math::Math::Stub.new(options['host'], **stub_opts)
+    GRPC.logger.info("... connecting securely on #{options['host']}")
+  else
+    stub = Math::Math::Stub.new(options['host'])
+    GRPC.logger.info("... connecting insecurely on #{options['host']}")
+  end
+
+  do_div(stub)
+  do_sum(stub)
+  do_fib(stub)
+  do_div_many(stub)
+end
+
+main