Chiebot-Mirror
/
grpc
mirror of https://github.com/grpc/grpc.git
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge pull request #21316 from muxi/update-unary-response-handler-generics

Browse Source 
Update GRPCUnaryResponseHandler with generics
pull/21339/head
Muxi Yan 5 years ago committed by GitHub
parent a02d6b9be8 9bda9e9cb5
commit e2ae404dcd
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 103 additions and 104 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 158
      examples/objective-c/route_guide/ViewControllers.m
  2. 7
      src/objective-c/ProtoRPC/ProtoRPC.h
  3. 4
      src/objective-c/ProtoRPC/ProtoRPC.m

158
examples/objective-c/route_guide/ViewControllers.m
Unescape View File

@ -25,7 +25,7 @@
#import <GRPCClient/GRPCTransport.h>
static NSString * const kHostAddress = @"localhost:50051";
static NSString *const kHostAddress = @"localhost:50051";
/** Category to override RTGPoint's description. */
@interface RTGPoint (Description)
@ -36,8 +36,8 @@ static NSString * const kHostAddress = @"localhost:50051";
- (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,
return
[NSString stringWithFormat:@"%.02f%@ %.02f%@", abs(self.latitude) / 1E7f, verticalDirection,
abs(self.longitude) / 1E7f, horizontalDirection];
}
@end
@ -55,22 +55,21 @@ static NSString * const kHostAddress = @"localhost:50051";
longitude:(float)longitude {
RTGRouteNote *note = [self message];
note.message = message;
note.location.latitude = (int32_t) latitude * 1E7;
note.location.longitude = (int32_t) longitude * 1E7;
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<GRPCProtoResponseHandler>
@interface GetFeatureViewController : UIViewController
@property (weak, nonatomic) IBOutlet UILabel *outputLabel;
@property(weak, nonatomic) IBOutlet UILabel *outputLabel;
@end
@ -78,47 +77,44 @@ static NSString * const kHostAddress = @"localhost:50051";
RTGRouteGuide *_service;
}
- (dispatch_queue_t)dispatchQueue {
return dispatch_get_main_queue();
}
- (void)didReceiveProtoMessage:(GPBMessage *)message {
RTGFeature *response = (RTGFeature *)message;
- (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 != 0) {
NSString *str =[NSString stringWithFormat:@"%@\nFound feature called %@ at %@.", self.outputLabel.text, response.location, response.name];
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];
NSString *str = [NSString stringWithFormat:@"%@\nFound no features at %@",
self.outputLabel.text, response.location];
self.outputLabel.text = str;
NSLog(@"Found no features at %@", response.location);
}
}
- (void)didCloseWithTrailingMetadata:(NSDictionary *)trailingMetadata error:(NSError *)error {
if (error) {
NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
} else {
NSString *str =
[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
self.outputLabel.text = str;
NSLog(@"RPC error: %@", error);
}
}
};
- (void)execRequest {
RTGPoint *point = [RTGPoint message];
point.latitude = 409146138;
point.longitude = -746188906;
GRPCUnaryProtoCall *call = [_service getFeatureWithMessage:point
responseHandler:self
GRPCUnaryProtoCall *call = [_service
getFeatureWithMessage:point
responseHandler:[[GRPCUnaryResponseHandler alloc] initWithResponseHandler:handler
responseDispatchQueue:nil]
callOptions:nil];
[call start];
call = [_service getFeatureWithMessage:[RTGPoint message]
responseHandler:self
call = [_service
getFeatureWithMessage:[RTGPoint message]
responseHandler:[[GRPCUnaryResponseHandler alloc] initWithResponseHandler:handler
responseDispatchQueue:nil]
callOptions:nil];
[call start];
}
- (void)viewDidLoad {
@ -139,16 +135,15 @@ static NSString * const kHostAddress = @"localhost:50051";
@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<GRPCProtoResponseHandler>
@interface ListFeaturesViewController : UIViewController <GRPCProtoResponseHandler>
@property (weak, nonatomic) IBOutlet UILabel *outputLabel;
@property(weak, nonatomic) IBOutlet UILabel *outputLabel;
@end
@ -177,7 +172,9 @@ static NSString * const kHostAddress = @"localhost:50051";
- (void)didReceiveProtoMessage:(GPBMessage *)message {
RTGFeature *response = (RTGFeature *)message;
if (response) {
NSString *str =[NSString stringWithFormat:@"%@\nFound feature at %@ called %@.", self.outputLabel.text, response.location, response.name];
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);
}
@ -185,7 +182,7 @@ static NSString * const kHostAddress = @"localhost:50051";
- (void)didCloseWithTrailingMetadata:(NSDictionary *)trailingMetadata error:(NSError *)error {
if (error) {
NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
NSString *str = [NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
self.outputLabel.text = str;
NSLog(@"RPC error: %@", error);
}
@ -216,9 +213,9 @@ static NSString * const kHostAddress = @"localhost:50051";
* database with a variable delay in between. Prints the statistics when they are sent from the
* server.
*/
@interface RecordRouteViewController : UIViewController<GRPCProtoResponseHandler>
@interface RecordRouteViewController : UIViewController
@property (weak, nonatomic) IBOutlet UILabel *outputLabel;
@property(weak, nonatomic) IBOutlet UILabel *outputLabel;
@end
@ -226,16 +223,13 @@ static NSString * const kHostAddress = @"localhost:50051";
RTGRouteGuide *_service;
}
- (dispatch_queue_t)dispatchQueue {
return dispatch_get_main_queue();
}
- (void)execRequest {
NSString *dataBasePath = [NSBundle.mainBundle pathForResource:@"route_guide_db"
ofType:@"json"];
NSString *dataBasePath = [NSBundle.mainBundle pathForResource:@"route_guide_db" ofType:@"json"];
NSData *dataBaseContent = [NSData dataWithContentsOfFile:dataBasePath];
NSError *error;
NSArray *features = [NSJSONSerialization JSONObjectWithData:dataBaseContent options:0 error:&error];
NSArray *features = [NSJSONSerialization JSONObjectWithData:dataBaseContent
options:0
error:&error];
if (error) {
NSLog(@"Error reading database.");
@ -244,27 +238,11 @@ static NSString * const kHostAddress = @"localhost:50051";
return;
}
GRPCStreamingProtoCall *call = [_service recordRouteWithResponseHandler:self
callOptions:nil];
[call start];
for (id feature in features) {
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);
[call writeMessage:location];
}
[call finish];
}
- (void)didReceiveProtoMessage:(GPBMessage *)message {
RTGRouteSummary *response = (RTGRouteSummary *)message;
void (^handler)(RTGRouteSummary *response, NSError *error) =
^(RTGRouteSummary *response, NSError *error) {
if (response) {
NSString *str =[NSString stringWithFormat:
@"%@\nFinished trip with %i points\nPassed %i features\n"
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];
@ -273,15 +251,33 @@ static NSString * const kHostAddress = @"localhost:50051";
NSLog(@"Passed %i features", response.featureCount);
NSLog(@"Travelled %i meters", response.distance);
NSLog(@"It took %i seconds", response.elapsedTime);
}
}
- (void)didCloseWithTrailingMetadata:(NSDictionary *)trailingMetadata error:(NSError *)error {
if (error) {
NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
} else {
NSString *str =
[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
self.outputLabel.text = str;
NSLog(@"RPC error: %@", error);
}
};
// We can use unary response handler here because, despite the requests being a stream, the
// response of the RPC is unary.
GRPCStreamingProtoCall *call =
[_service recordRouteWithResponseHandler:[[GRPCUnaryResponseHandler alloc]
initWithResponseHandler:handler
responseDispatchQueue:nil]
callOptions:nil];
[call start];
for (id feature in features) {
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);
[call writeMessage:location];
}
[call finish];
}
- (void)viewDidLoad {
@ -302,16 +298,15 @@ static NSString * const kHostAddress = @"localhost:50051";
@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<GRPCProtoResponseHandler>
@interface RouteChatViewController : UIViewController <GRPCProtoResponseHandler>
@property (weak, nonatomic) IBOutlet UILabel *outputLabel;
@property(weak, nonatomic) IBOutlet UILabel *outputLabel;
@end
@ -324,13 +319,14 @@ static NSString * const kHostAddress = @"localhost:50051";
}
- (void)execRequest {
NSArray *notes = @[[RTGRouteNote noteWithMessage:@"First message" latitude:0 longitude:0],
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]];
[RTGRouteNote noteWithMessage:@"Fourth message" latitude:0 longitude:0]
];
GRPCStreamingProtoCall *call = [_service routeChatWithResponseHandler:self
callOptions:nil];
GRPCStreamingProtoCall *call = [_service routeChatWithResponseHandler:self callOptions:nil];
[call start];
for (RTGRouteNote *note in notes) {
[call writeMessage:note];
@ -341,8 +337,8 @@ static NSString * const kHostAddress = @"localhost:50051";
- (void)didReceiveProtoMessage:(GPBMessage *)message {
RTGRouteNote *note = (RTGRouteNote *)message;
if (note) {
NSString *str =[NSString stringWithFormat:@"%@\nGot message %@ at %@",
self.outputLabel.text, note.message, note.location];
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);
}
@ -352,7 +348,7 @@ static NSString * const kHostAddress = @"localhost:50051";
if (!error) {
NSLog(@"Chat ended.");
} else {
NSString *str =[NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
NSString *str = [NSString stringWithFormat:@"%@\nRPC error: %@", self.outputLabel.text, error];
self.outputLabel.text = str;
NSLog(@"RPC error: %@", error);
}

7
src/objective-c/ProtoRPC/ProtoRPC.h
Unescape View File

@ -73,8 +73,11 @@ NS_ASSUME_NONNULL_BEGIN
/**
* A convenience class of objects that act as response handlers of calls. Issues
* response to a single handler when the response is completed.
*
* The object is stateful and should not be reused for multiple calls. If multiple calls share the
* same response handling logic, create separate GRPCUnaryResponseHandler objects for each call.
*/
@interface GRPCUnaryResponseHandler : NSObject<GRPCProtoResponseHandler>
@interface GRPCUnaryResponseHandler<ResponseType> : NSObject<GRPCProtoResponseHandler>
/**
* Creates a responsehandler object with a unary call handler.
@ -83,7 +86,7 @@ NS_ASSUME_NONNULL_BEGIN
* responseDispatchQueue: the dispatch queue on which the response handler
* should be issued. If it's nil, the handler will use the main queue.
*/
- (nullable instancetype)initWithResponseHandler:(void (^)(GPBMessage *, NSError *))handler
- (nullable instancetype)initWithResponseHandler:(void (^)(ResponseType, NSError *))handler
responseDispatchQueue:(nullable dispatch_queue_t)dispatchQueue;
/** Response headers received during the call. */

4
src/objective-c/ProtoRPC/ProtoRPC.m
Unescape View File

@ -28,13 +28,13 @@
#import <RxLibrary/GRXWriter+Transformations.h>
@implementation GRPCUnaryResponseHandler {
void (^_responseHandler)(GPBMessage *, NSError *);
void (^_responseHandler)(id, NSError *);
dispatch_queue_t _responseDispatchQueue;
GPBMessage *_message;
}
- (nullable instancetype)initWithResponseHandler:(void (^)(GPBMessage *, NSError *))handler
- (nullable instancetype)initWithResponseHandler:(void (^)(id, NSError *))handler
responseDispatchQueue:(dispatch_queue_t)dispatchQueue {
if ((self = [super init])) {
_responseHandler = handler;

Write Preview
Loading…
Cancel
Save