Initial checkin of gRPC to third_party/

third_party/grpc/src/objective-c/examples/Sample/Sample/ViewController.m

Index: third_party/grpc/src/objective-c/examples/Sample/Sample/ViewController.m
diff --git a/third_party/grpc/src/objective-c/examples/Sample/Sample/ViewController.m b/third_party/grpc/src/objective-c/examples/Sample/Sample/ViewController.m
new file mode 100644
index 0000000000000000000000000000000000000000..a2bb3ee32986c67546aeea6c3c2e6b17cea01c20
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+++ b/third_party/grpc/src/objective-c/examples/Sample/Sample/ViewController.m
@@ -0,0 +1,93 @@
+/*
+ *
+ * Copyright 2015-2016, 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 "ViewController.h"
+
+#import <GRPCClient/GRPCCall.h>
+#import <ProtoRPC/ProtoMethod.h>
+#import <RemoteTest/Messages.pbobjc.h>
+#import <RemoteTest/Test.pbrpc.h>
+#import <RxLibrary/GRXWriter+Immediate.h>
+#import <RxLibrary/GRXWriteable.h>
+
+@implementation ViewController
+
+- (void)viewDidLoad {
+  [super viewDidLoad];
+
+  NSString * const kRemoteHost = @"grpc-test.sandbox.googleapis.com";
+
+  RMTSimpleRequest *request = [[RMTSimpleRequest alloc] init];
+  request.responseSize = 10;
+  request.fillUsername = YES;
+  request.fillOauthScope = YES;
+
+  // Example gRPC call using a generated proto client library:
+
+  RMTTestService *service = [[RMTTestService alloc] initWithHost:kRemoteHost];
+  [service unaryCallWithRequest:request handler:^(RMTSimpleResponse *response, NSError *error) {
+    if (response) {
+      NSLog(@"Finished successfully with response:\n%@", response);
+    } else if (error) {
+      NSLog(@"Finished with error: %@", error);
+    }
+  }];
+
+
+  // Same example call using the generic gRPC client library:
+
+  ProtoMethod *method = [[ProtoMethod alloc] initWithPackage:@"grpc.testing"
+                                                     service:@"TestService"
+                                                      method:@"UnaryCall"];
+
+  GRXWriter *requestsWriter = [GRXWriter writerWithValue:[request data]];
+
+  GRPCCall *call = [[GRPCCall alloc] initWithHost:kRemoteHost
+                                             path:method.HTTPPath
+                                   requestsWriter:requestsWriter];
+
+  id<GRXWriteable> responsesWriteable = [[GRXWriteable alloc] initWithValueHandler:^(NSData *value) {
+    RMTSimpleResponse *response = [RMTSimpleResponse parseFromData:value error:NULL];
+    NSLog(@"Received response:\n%@", response);
+  } completionHandler:^(NSError *errorOrNil) {
+    if (errorOrNil) {
+      NSLog(@"Finished with error: %@", errorOrNil);
+    } else {
+      NSLog(@"Finished successfully.");
+    }
+  }];
+
+  [call startWithWriteable:responsesWriteable];
+}
+
+@end