Initial checkin of gRPC to third_party/

third_party/grpc/examples/php/route_guide/route_guide_client.php

+<?php
+/*
+ *
+ * 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.
+ *
+ */
+
+require dirname(__FILE__) . '/../vendor/autoload.php';
+require dirname(__FILE__) . '/route_guide.php';
+
+define('COORD_FACTOR', 1e7);
+
+$client = new routeguide\RouteGuideClient('localhost:50051', []);
+
+function printFeature($feature) {
+  $name = $feature->getName();
+  if (!$name) {
+    $name_str = "no feature";
+  } else {
+    $name_str = "feature called $name";
+  }
+  print sprintf("Found %s \n  at %f, %f\n", $name_str,
+                $feature->getLocation()->getLatitude() / COORD_FACTOR,
+                $feature->getLocation()->getLongitude() / COORD_FACTOR);
+}
+
+/**
+ * Run the getFeature demo. Calls getFeature with a point known to have a
+ * feature and a point known not to have a feature.
+ */
+function runGetFeature() {
+  print "Running GetFeature...\n";
+  global $client;
+
+  $point = new routeguide\Point();
+  $points = array(
+    array(409146138, -746188906),
+    array(0, 0),
+  );
+
+  foreach ($points as $p) {
+    $point->setLatitude($p[0]);
+    $point->setLongitude($p[1]);
+    // make a unary grpc call
+    list($feature, $status) = $client->GetFeature($point)->wait();
+    printFeature($feature);
+  }
+}
+
+/**
+ * Run the listFeatures demo. Calls listFeatures with a rectangle
+ * containing all of the features in the pre-generated
+ * database. Prints each response as it comes in.
+ */
+function runListFeatures() {
+  print "Running ListFeatures...\n";
+  global $client;
+
+  $lo_point = new routeguide\Point();
+  $hi_point = new routeguide\Point();
+
+  $lo_point->setLatitude(400000000);
+  $lo_point->setLongitude(-750000000);
+  $hi_point->setLatitude(420000000);
+  $hi_point->setLongitude(-730000000);
+
+  $rectangle = new routeguide\Rectangle();
+  $rectangle->setLo($lo_point);
+  $rectangle->setHi($hi_point);
+
+  // start the server streaming call
+  $call = $client->ListFeatures($rectangle);
+  // an iterator over the server streaming responses
+  $features = $call->responses();
+  foreach ($features as $feature) {
+    printFeature($feature);
+  }
+}
+
+/**
+ * Run the recordRoute demo. Sends several randomly chosen points from the
+ * pre-generated feature database with a variable delay in between. Prints
+ * the statistics when they are sent from the server.
+ */
+function runRecordRoute() {
+  print "Running RecordRoute...\n";
+  global $client, $argv;
+
+  // start the client streaming call
+  $call = $client->RecordRoute();
+
+  $db = json_decode(file_get_contents($argv[1]), true);
+  $num_points_in_db = count($db);
+  $num_points = 10;
+  for ($i = 0; $i < $num_points; $i++) {
+    $point = new routeguide\Point();
+    $index = rand(0, $num_points_in_db - 1);
+    $lat = $db[$index]['location']['latitude'];
+    $long = $db[$index]['location']['longitude'];
+    $feature_name = $db[$index]['name'];
+    $point->setLatitude($lat);
+    $point->setLongitude($long);
+    print sprintf("Visiting point %f, %f,\n  with feature name: %s\n",
+                  $lat / COORD_FACTOR, $long / COORD_FACTOR,
+                  $feature_name ? $feature_name : '<empty>');
+    usleep(rand(300000, 800000));
+    $call->write($point);
+  }
+  list($route_summary, $status) = $call->wait();
+  print sprintf("Finished trip with %d points\nPassed %d features\n".
+                "Travelled %d meters\nIt took %d seconds\n",
+                $route_summary->getPointCount(),
+                $route_summary->getFeatureCount(),
+                $route_summary->getDistance(),
+                $route_summary->getElapsedTime());
+}
+
+/**
+ * Run the routeChat demo. Send some chat messages, and print any chat
+ * messages that are sent from the server.
+ */
+function runRouteChat() {
+  print "Running RouteChat...\n";
+  global $client;
+
+  // start the bidirectional streaming call
+  $call = $client->RouteChat();
+
+  $notes = array(
+    array(1, 1, 'first message'),
+    array(1, 2, 'second message'),
+    array(2, 1, 'third message'),
+    array(1, 1, 'fourth message'),
+    array(1, 1, 'fifth message'),
+  );
+
+  foreach ($notes as $n) {
+    $point = new routeguide\Point();
+    $point->setLatitude($lat = $n[0]);
+    $point->setLongitude($long = $n[1]);
+
+    $route_note = new routeguide\RouteNote();
+    $route_note->setLocation($point);
+    $route_note->setMessage($message = $n[2]);
+
+    print sprintf("Sending message: '%s' at (%d, %d)\n",
+                  $message, $lat, $long);
+    // send a bunch of messages to the server
+    $call->write($route_note);
+  }
+  $call->writesDone();
+
+  // read from the server until there's no more
+  while ($route_note_reply = $call->read()) {
+    print sprintf("Previous left message at (%d, %d): '%s'\n",
+                  $route_note_reply->getLocation()->getLatitude(),
+                  $route_note_reply->getLocation()->getLongitude(),
+                  $route_note_reply->getMessage());
+  }
+}
+
+/**
+ * Run all of the demos in order
+ */
+function main() {
+  runGetFeature();
+  runListFeatures();
+  runRecordRoute();
+  runRouteChat();
+}
+
+if (empty($argv[1])) {
+  print "Usage: php -d extension=grpc.so route_guide_client.php " .
+        "<path to route_guide_db.json>\n";
+  exit(1);
+}
+main();