Implement both Publisher and Subscriber.

1 files changed, 145 insertions, 0 deletions

diff --git a/examples/tips/main.cc b/examples/tips/main.cc
new file mode 100644
index 0000000000..94a0bc7995
--- /dev/null
+++ b/examples/tips/main.cc
@@ -0,0 +1,145 @@
+/*
+ *
+ * Copyright 2014, 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.
+ *
+ */
+
+#include <chrono>
+#include <fstream>
+#include <memory>
+#include <sstream>
+#include <string>
+#include <thread>
+
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
+#include <google/gflags.h>
+#include <grpc++/channel_interface.h>
+#include <grpc++/create_channel.h>
+#include <grpc++/credentials.h>
+#include <grpc++/status.h>
+
+#include "examples/tips/publisher.h"
+#include "examples/tips/subscriber.h"
+#include "test/cpp/util/create_test_channel.h"
+
+DEFINE_int32(server_port, 443, "Server port.");
+DEFINE_string(server_host,
+              "pubsub-staging.googleapis.com", "Server host to connect to");
+DEFINE_string(service_account_key_file, "",
+              "Path to service account json key file.");
+DEFINE_string(oauth_scope,
+              "https://www.googleapis.com/auth/cloud-platform",
+              "Scope for OAuth tokens.");
+
+namespace {
+
+const char kTopic[] = "/topics/stoked-keyword-656/testtopics";
+const char kSubscriptionName[] = "stoked-keyword-656/testsubscription";
+const char kMessageData[] = "Message Data";
+
+}  // namespace
+
+grpc::string GetServiceAccountJsonKey() {
+  static grpc::string json_key;
+  if (json_key.empty()) {
+    std::ifstream json_key_file(FLAGS_service_account_key_file);
+    std::stringstream key_stream;
+    key_stream << json_key_file.rdbuf();
+    json_key = key_stream.str();
+  }
+  return json_key;
+}
+
+int main(int argc, char** argv) {
+  grpc_init();
+  google::ParseCommandLineFlags(&argc, &argv, true);
+  gpr_log(GPR_INFO, "Start TIPS client");
+
+  const int host_port_buf_size = 1024;
+  char host_port[host_port_buf_size];
+  snprintf(host_port, host_port_buf_size, "%s:%d", FLAGS_server_host.c_str(),
+           FLAGS_server_port);
+
+  std::unique_ptr<grpc::Credentials> creds;
+  if (FLAGS_service_account_key_file != "") {
+    grpc::string json_key = GetServiceAccountJsonKey();
+    creds = grpc::CredentialsFactory::ServiceAccountCredentials(
+        json_key, FLAGS_oauth_scope, std::chrono::hours(1));
+  } else {
+    creds = grpc::CredentialsFactory::ComputeEngineCredentials();
+  }
+
+  std::shared_ptr<grpc::ChannelInterface> channel(
+      grpc::CreateTestChannel(
+          host_port,
+          FLAGS_server_host,
+          true,                // enable SSL
+          true,                // use prod roots
+          creds));
+
+  grpc::examples::tips::Publisher publisher(channel);
+  grpc::examples::tips::Subscriber subscriber(channel);
+
+  grpc::string topic = kTopic;
+
+  if (publisher.GetTopic(topic).IsOk()) publisher.DeleteTopic(topic);
+
+  grpc::Status s = publisher.CreateTopic(topic);
+  gpr_log(GPR_INFO, "Create topic returns code %d, %s",
+          s.code(), s.details().c_str());
+  GPR_ASSERT(s.IsOk());
+
+  s = publisher.GetTopic(topic);
+  gpr_log(GPR_INFO, "Get topic returns code %d, %s",
+          s.code(), s.details().c_str());
+  GPR_ASSERT(s.IsOk());
+
+  s = publisher.Publish(topic, kMessageData);
+  gpr_log(GPR_INFO, "Publish returns code %d, %s",
+          s.code(), s.details().c_str());
+  GPR_ASSERT(s.IsOk());
+
+  s = subscriber.CreateSubscription(kTopic, kSubscriptionName);
+  gpr_log(GPR_INFO, "create subscrption returns code %d, %s",
+          s.code(), s.details().c_str());
+  GPR_ASSERT(s.IsOk());
+
+  s = publisher.DeleteTopic(kTopic);
+  gpr_log(GPR_INFO, "Delete topic returns code %d, %s",
+          s.code(), s.details().c_str());
+  GPR_ASSERT(s.IsOk());
+
+  subscriber.Shutdown();
+  publisher.Shutdown();
+  channel.reset();
+  grpc_shutdown();
+  return 0;
+}