examples/objective-c/route_guide/ViewControllers.m - platform/external/grpc-grpc - Gitiles

 /*
  *
  * 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.
  *
  */

 #import <UIKit/UIKit.h>
 #import <GRPCClient/GRPCCall+Tests.h>
 #import <RouteGuide/RouteGuide.pbrpc.h>
 #import <RxLibrary/GRXWriter+Immediate.h>
 #import <RxLibrary/GRXWriter+Transformations.h>

 static NSString * const kHostAddress = @"localhost:50051";

 /** Category to override RTGPoint's description. */
 @interface RTGPoint (Description)
 - (NSString *)description;
 @end

 @implementation RTGPoint (Description)
 - (NSString *)description {
   NSString *verticalDirection = self.latitude >= 0 ? @"N" : @"S";
   NSString *horizontalDirection = self.longitude >= 0 ? @"E" : @"W";
   return [NSString stringWithFormat:@"%.02f%@ %.02f%@",
           abs(self.latitude) / 1E7f, verticalDirection,
           abs(self.longitude) / 1E7f, horizontalDirection];
 }
 @end

 /** Category to give RTGRouteNote a convenience constructor. */
 @interface RTGRouteNote (Constructors)
 + (instancetype)noteWithMessage:(NSString *)message
                        latitude:(float)latitude
                       longitude:(float)longitude;
 @end

 @implementation RTGRouteNote (Constructors)
 + (instancetype)noteWithMessage:(NSString *)message
                        latitude:(float)latitude
                       longitude:(float)longitude {
   RTGRouteNote *note = [self message];
   note.message = message;
   note.location.latitude = (int32_t) latitude * 1E7;
   note.location.longitude = (int32_t) longitude * 1E7;
   return note;
 }
 @end


 #pragma mark Demo: Get Feature

 /**
  * Run the getFeature demo. Calls getFeature with a point known to have a feature and a point known
  * not to have a feature.
  */
 @interface GetFeatureViewController : UIViewController

 @property (weak, nonatomic) IBOutlet UILabel *outputLabel;

 @end

 @implementation GetFeatureViewController {
   RTGRouteGuide *_service;
 }

 - (void)execRequest {
   void (^handler)(RTGFeature *response, NSError *error) = ^(RTGFeature *response, NSError *error) {
     // TODO(makdharma): Remove boilerplate by consolidating into one log function.
     if (response.name.length) {
       NSString *str =[NSString stringWithFormat:@"%@\nFound feature called %@ at %@.", self.outputLabel.text, response.location, response.name];
       self.outputLabel.text = str;
       NSLog(@"Found feature called %@ at %@.", response.name, response.location);
     } else if (response) {
       NSString *str =[NSString stringWithFormat:@"%@\nFound no features at %@",  self.outputLabel.text,response.location];
       self.outputLabel.text = str;
       NSLog(@"Found no features at %@", response.location);
     } else {
       NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
       self.outputLabel.text = str;
       NSLog(@"RPC error: %@", error);
     }
   };

   RTGPoint *point = [RTGPoint message];
   point.latitude = 409146138;
   point.longitude = -746188906;

   [_service getFeatureWithRequest:point handler:handler];
   [_service getFeatureWithRequest:[RTGPoint message] handler:handler];
 }

 - (void)viewDidLoad {
   [super viewDidLoad];

   // This only needs to be done once per host, before creating service objects for that host.
   [GRPCCall useInsecureConnectionsForHost:kHostAddress];

   _service = [[RTGRouteGuide alloc] initWithHost:kHostAddress];
 }

 - (void)viewDidAppear:(BOOL)animated {
   self.outputLabel.text = @"RPC log:";
   self.outputLabel.numberOfLines = 0;
   self.outputLabel.font = [UIFont fontWithName:@"Helvetica Neue" size:8.0];
   [self execRequest];
 }

 @end


 #pragma mark Demo: List Features

 /**
  * 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.
  */
 @interface ListFeaturesViewController : UIViewController

 @property (weak, nonatomic) IBOutlet UILabel *outputLabel;

 @end

 @implementation ListFeaturesViewController {
   RTGRouteGuide *_service;
 }

 - (void)execRequest {
   RTGRectangle *rectangle = [RTGRectangle message];
   rectangle.lo.latitude = 405E6;
   rectangle.lo.longitude = -750E6;
   rectangle.hi.latitude = 410E6;
   rectangle.hi.longitude = -745E6;

   NSLog(@"Looking for features between %@ and %@", rectangle.lo, rectangle.hi);
   [_service listFeaturesWithRequest:rectangle
                       eventHandler:^(BOOL done, RTGFeature *response, NSError *error) {
     if (response) {
       NSString *str =[NSString stringWithFormat:@"%@\nFound feature at %@ called %@.", self.outputLabel.text, response.location, response.name];
       self.outputLabel.text = str;
       NSLog(@"Found feature at %@ called %@.", response.location, response.name);
     } else if (error) {
       NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
       self.outputLabel.text = str;
       NSLog(@"RPC error: %@", error);
     }
   }];
 }

 - (void)viewDidLoad {
   [super viewDidLoad];

   _service = [[RTGRouteGuide alloc] initWithHost:kHostAddress];
 }

 - (void)viewDidAppear:(BOOL)animated {
   self.outputLabel.text = @"RPC log:";
   self.outputLabel.numberOfLines = 0;
   self.outputLabel.font = [UIFont fontWithName:@"Helvetica Neue" size:8.0];
   [self execRequest];
 }

 @end


 #pragma mark Demo: Record Route

 /**
  * 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.
  */
 @interface RecordRouteViewController : UIViewController

 @property (weak, nonatomic) IBOutlet UILabel *outputLabel;

 @end

 @implementation RecordRouteViewController {
   RTGRouteGuide *_service;
 }

 - (void)execRequest {
   NSString *dataBasePath = [NSBundle.mainBundle pathForResource:@"route_guide_db"
                                                          ofType:@"json"];
   NSData *dataBaseContent = [NSData dataWithContentsOfFile:dataBasePath];
   NSArray *features = [NSJSONSerialization JSONObjectWithData:dataBaseContent options:0 error:NULL];

   GRXWriter *locations = [[GRXWriter writerWithContainer:features] map:^id(id feature) {
     RTGPoint *location = [RTGPoint message];
     location.longitude = [((NSNumber *) feature[@"location"][@"longitude"]) intValue];
     location.latitude = [((NSNumber *) feature[@"location"][@"latitude"]) intValue];
     NSString *str =[NSString stringWithFormat:@"%@\nVisiting point %@", self.outputLabel.text, location];
     self.outputLabel.text = str;
     NSLog(@"Visiting point %@", location);
     return location;
   }];

   [_service recordRouteWithRequestsWriter:locations
                                  handler:^(RTGRouteSummary *response, NSError *error) {
     if (response) {
       NSString *str =[NSString stringWithFormat:
                       @"%@\nFinished trip with %i points\nPassed %i features\n"
                       "Travelled %i meters\nIt took %i seconds",
                       self.outputLabel.text, response.pointCount, response.featureCount,
                       response.distance, response.elapsedTime];
       self.outputLabel.text = str;
       NSLog(@"Finished trip with %i points", response.pointCount);
       NSLog(@"Passed %i features", response.featureCount);
       NSLog(@"Travelled %i meters", response.distance);
       NSLog(@"It took %i seconds", response.elapsedTime);
     } else {
       NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
       self.outputLabel.text = str;
       NSLog(@"RPC error: %@", error);
     }
   }];
 }

 - (void)viewDidLoad {
   [super viewDidLoad];

   _service = [[RTGRouteGuide alloc] initWithHost:kHostAddress];
 }

 - (void)viewDidAppear:(BOOL)animated {
   self.outputLabel.text = @"RPC log:";
   self.outputLabel.numberOfLines = 0;
   self.outputLabel.font = [UIFont fontWithName:@"Helvetica Neue" size:8.0];
   [self execRequest];
 }

 @end


 #pragma mark Demo: Route Chat

 /**
  * Run the routeChat demo. Send some chat messages, and print any chat messages that are sent from
  * the server.
  */
 @interface RouteChatViewController : UIViewController

 @property (weak, nonatomic) IBOutlet UILabel *outputLabel;

 @end

 @implementation RouteChatViewController {
   RTGRouteGuide *_service;
 }

 - (void)execRequest {
   NSArray *notes = @[[RTGRouteNote noteWithMessage:@"First message" latitude:0 longitude:0],
                      [RTGRouteNote noteWithMessage:@"Second message" latitude:0 longitude:1],
                      [RTGRouteNote noteWithMessage:@"Third message" latitude:1 longitude:0],
                      [RTGRouteNote noteWithMessage:@"Fourth message" latitude:0 longitude:0]];
   GRXWriter *notesWriter = [[GRXWriter writerWithContainer:notes] map:^id(RTGRouteNote *note) {
     NSLog(@"Sending message %@ at %@", note.message, note.location);
     return note;
   }];

   [_service routeChatWithRequestsWriter:notesWriter
                           eventHandler:^(BOOL done, RTGRouteNote *note, NSError *error) {
     if (note) {
       NSString *str =[NSString stringWithFormat:@"%@\nGot message %@ at %@",
                       self.outputLabel.text, note.message, note.location];
       self.outputLabel.text = str;
       NSLog(@"Got message %@ at %@", note.message, note.location);
     } else if (error) {
       NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
       self.outputLabel.text = str;
       NSLog(@"RPC error: %@", error);
     }
     if (done) {
       NSLog(@"Chat ended.");
     }
   }];
 }

 - (void)viewDidLoad {
   [super viewDidLoad];

   _service = [[RTGRouteGuide alloc] initWithHost:kHostAddress];
 }

 - (void)viewDidAppear:(BOOL)animated {
   // TODO(makarandd): Set these properties through UI builder
   self.outputLabel.text = @"RPC log:";
   self.outputLabel.numberOfLines = 0;
   self.outputLabel.font = [UIFont fontWithName:@"Helvetica Neue" size:8.0];
   [self execRequest];
 }

 @end
	/*
	*
	* 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.
	*
	*/

	#import <UIKit/UIKit.h>
	#import <GRPCClient/GRPCCall+Tests.h>
	#import <RouteGuide/RouteGuide.pbrpc.h>
	#import <RxLibrary/GRXWriter+Immediate.h>
	#import <RxLibrary/GRXWriter+Transformations.h>

	static NSString * const kHostAddress = @"localhost:50051";

	/** Category to override RTGPoint's description. */
	@interface RTGPoint (Description)
	- (NSString *)description;
	@end

	@implementation RTGPoint (Description)
	- (NSString *)description {
	NSString *verticalDirection = self.latitude >= 0 ? @"N" : @"S";
	NSString *horizontalDirection = self.longitude >= 0 ? @"E" : @"W";
	return [NSString stringWithFormat:@"%.02f%@ %.02f%@",
	abs(self.latitude) / 1E7f, verticalDirection,
	abs(self.longitude) / 1E7f, horizontalDirection];
	}
	@end

	/** Category to give RTGRouteNote a convenience constructor. */
	@interface RTGRouteNote (Constructors)
	+ (instancetype)noteWithMessage:(NSString *)message
	latitude:(float)latitude
	longitude:(float)longitude;
	@end

	@implementation RTGRouteNote (Constructors)
	+ (instancetype)noteWithMessage:(NSString *)message
	latitude:(float)latitude
	longitude:(float)longitude {
	RTGRouteNote *note = [self message];
	note.message = message;
	note.location.latitude = (int32_t) latitude * 1E7;
	note.location.longitude = (int32_t) longitude * 1E7;
	return note;
	}
	@end


	#pragma mark Demo: Get Feature

	/**
	* Run the getFeature demo. Calls getFeature with a point known to have a feature and a point known
	* not to have a feature.
	*/
	@interface GetFeatureViewController : UIViewController

	@property (weak, nonatomic) IBOutlet UILabel *outputLabel;

	@end

	@implementation GetFeatureViewController {
	RTGRouteGuide *_service;
	}

	- (void)execRequest {
	void (^handler)(RTGFeature response, NSError error) = ^(RTGFeature response, NSError error) {
	// TODO(makdharma): Remove boilerplate by consolidating into one log function.
	if (response.name.length) {
	NSString *str =[NSString stringWithFormat:@"%@\nFound feature called %@ at %@.", self.outputLabel.text, response.location, response.name];
	self.outputLabel.text = str;
	NSLog(@"Found feature called %@ at %@.", response.name, response.location);
	} else if (response) {
	NSString *str =[NSString stringWithFormat:@"%@\nFound no features at %@", self.outputLabel.text,response.location];
	self.outputLabel.text = str;
	NSLog(@"Found no features at %@", response.location);
	} else {
	NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
	self.outputLabel.text = str;
	NSLog(@"RPC error: %@", error);
	}
	};

	RTGPoint *point = [RTGPoint message];
	point.latitude = 409146138;
	point.longitude = -746188906;

	[_service getFeatureWithRequest:point handler:handler];
	[_service getFeatureWithRequest:[RTGPoint message] handler:handler];
	}

	- (void)viewDidLoad {
	[super viewDidLoad];

	// This only needs to be done once per host, before creating service objects for that host.
	[GRPCCall useInsecureConnectionsForHost:kHostAddress];

	_service = [[RTGRouteGuide alloc] initWithHost:kHostAddress];
	}

	- (void)viewDidAppear:(BOOL)animated {
	self.outputLabel.text = @"RPC log:";
	self.outputLabel.numberOfLines = 0;
	self.outputLabel.font = [UIFont fontWithName:@"Helvetica Neue" size:8.0];
	[self execRequest];
	}

	@end


	#pragma mark Demo: List Features

	/**
	* 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.
	*/
	@interface ListFeaturesViewController : UIViewController

	@property (weak, nonatomic) IBOutlet UILabel *outputLabel;

	@end

	@implementation ListFeaturesViewController {
	RTGRouteGuide *_service;
	}

	- (void)execRequest {
	RTGRectangle *rectangle = [RTGRectangle message];
	rectangle.lo.latitude = 405E6;
	rectangle.lo.longitude = -750E6;
	rectangle.hi.latitude = 410E6;
	rectangle.hi.longitude = -745E6;

	NSLog(@"Looking for features between %@ and %@", rectangle.lo, rectangle.hi);
	[_service listFeaturesWithRequest:rectangle
	eventHandler:^(BOOL done, RTGFeature response, NSError error) {
	if (response) {
	NSString *str =[NSString stringWithFormat:@"%@\nFound feature at %@ called %@.", self.outputLabel.text, response.location, response.name];
	self.outputLabel.text = str;
	NSLog(@"Found feature at %@ called %@.", response.location, response.name);
	} else if (error) {
	NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
	self.outputLabel.text = str;
	NSLog(@"RPC error: %@", error);
	}
	}];
	}

	- (void)viewDidLoad {
	[super viewDidLoad];

	_service = [[RTGRouteGuide alloc] initWithHost:kHostAddress];
	}

	- (void)viewDidAppear:(BOOL)animated {
	self.outputLabel.text = @"RPC log:";
	self.outputLabel.numberOfLines = 0;
	self.outputLabel.font = [UIFont fontWithName:@"Helvetica Neue" size:8.0];
	[self execRequest];
	}

	@end


	#pragma mark Demo: Record Route

	/**
	* 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.
	*/
	@interface RecordRouteViewController : UIViewController

	@property (weak, nonatomic) IBOutlet UILabel *outputLabel;

	@end

	@implementation RecordRouteViewController {
	RTGRouteGuide *_service;
	}

	- (void)execRequest {
	NSString *dataBasePath = [NSBundle.mainBundle pathForResource:@"route_guide_db"
	ofType:@"json"];
	NSData *dataBaseContent = [NSData dataWithContentsOfFile:dataBasePath];
	NSArray *features = [NSJSONSerialization JSONObjectWithData:dataBaseContent options:0 error:NULL];

	GRXWriter *locations = [[GRXWriter writerWithContainer:features] map:^id(id feature) {
	RTGPoint *location = [RTGPoint message];
	location.longitude = [((NSNumber *) feature[@"location"][@"longitude"]) intValue];
	location.latitude = [((NSNumber *) feature[@"location"][@"latitude"]) intValue];
	NSString *str =[NSString stringWithFormat:@"%@\nVisiting point %@", self.outputLabel.text, location];
	self.outputLabel.text = str;
	NSLog(@"Visiting point %@", location);
	return location;
	}];

	[_service recordRouteWithRequestsWriter:locations
	handler:^(RTGRouteSummary response, NSError error) {
	if (response) {
	NSString *str =[NSString stringWithFormat:
	@"%@\nFinished trip with %i points\nPassed %i features\n"
	"Travelled %i meters\nIt took %i seconds",
	self.outputLabel.text, response.pointCount, response.featureCount,
	response.distance, response.elapsedTime];
	self.outputLabel.text = str;
	NSLog(@"Finished trip with %i points", response.pointCount);
	NSLog(@"Passed %i features", response.featureCount);
	NSLog(@"Travelled %i meters", response.distance);
	NSLog(@"It took %i seconds", response.elapsedTime);
	} else {
	NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
	self.outputLabel.text = str;
	NSLog(@"RPC error: %@", error);
	}
	}];
	}

	- (void)viewDidLoad {
	[super viewDidLoad];

	_service = [[RTGRouteGuide alloc] initWithHost:kHostAddress];
	}

	- (void)viewDidAppear:(BOOL)animated {
	self.outputLabel.text = @"RPC log:";
	self.outputLabel.numberOfLines = 0;
	self.outputLabel.font = [UIFont fontWithName:@"Helvetica Neue" size:8.0];
	[self execRequest];
	}

	@end


	#pragma mark Demo: Route Chat

	/**
	* Run the routeChat demo. Send some chat messages, and print any chat messages that are sent from
	* the server.
	*/
	@interface RouteChatViewController : UIViewController

	@property (weak, nonatomic) IBOutlet UILabel *outputLabel;

	@end

	@implementation RouteChatViewController {
	RTGRouteGuide *_service;
	}

	- (void)execRequest {
	NSArray *notes = @[[RTGRouteNote noteWithMessage:@"First message" latitude:0 longitude:0],
	[RTGRouteNote noteWithMessage:@"Second message" latitude:0 longitude:1],
	[RTGRouteNote noteWithMessage:@"Third message" latitude:1 longitude:0],
	[RTGRouteNote noteWithMessage:@"Fourth message" latitude:0 longitude:0]];
	GRXWriter notesWriter = [[GRXWriter writerWithContainer:notes] map:^id(RTGRouteNote note) {
	NSLog(@"Sending message %@ at %@", note.message, note.location);
	return note;
	}];

	[_service routeChatWithRequestsWriter:notesWriter
	eventHandler:^(BOOL done, RTGRouteNote note, NSError error) {
	if (note) {
	NSString *str =[NSString stringWithFormat:@"%@\nGot message %@ at %@",
	self.outputLabel.text, note.message, note.location];
	self.outputLabel.text = str;
	NSLog(@"Got message %@ at %@", note.message, note.location);
	} else if (error) {
	NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
	self.outputLabel.text = str;
	NSLog(@"RPC error: %@", error);
	}
	if (done) {
	NSLog(@"Chat ended.");
	}
	}];
	}

	- (void)viewDidLoad {
	[super viewDidLoad];

	_service = [[RTGRouteGuide alloc] initWithHost:kHostAddress];
	}

	- (void)viewDidAppear:(BOOL)animated {
	// TODO(makarandd): Set these properties through UI builder
	self.outputLabel.text = @"RPC log:";
	self.outputLabel.numberOfLines = 0;
	self.outputLabel.font = [UIFont fontWithName:@"Helvetica Neue" size:8.0];
	[self execRequest];
	}

	@end