test/cpp/util/service_describer.cc

/*
 *
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 *
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 * modification, are permitted provided that the following conditions are
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 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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#include "service_describer.h"

#include <google/protobuf/descriptor.pb.h>
#include <iostream>
#include <sstream>
#include <string>
#include <vector>

namespace grpc {
namespace testing {

grpc::string DescribeServiceList(std::vector<grpc::string> service_list,
                                 google::protobuf::DescriptorPool& desc_pool) {
  std::stringstream result;
  for (auto const& service : service_list) {
    const google::protobuf::ServiceDescriptor* service_desc =
        desc_pool.FindServiceByName(service);
    if (service_desc != nullptr) {
      result << DescribeService(service_desc);
    }
  }
  return result.str();
}

grpc::string DescribeService(
    const google::protobuf::ServiceDescriptor* service) {
  grpc::string result;
  if (service->options().deprecated()) {
    result.append("DEPRECATED\n");
  }
  result.append("filename: " + service->file()->name() + "\n");

  grpc::string package = service->full_name();
  size_t pos = package.rfind("." + service->name());
  if (pos != grpc::string::npos) {
    package.erase(pos);
    result.append("package: " + package + ";\n");
  }
  result.append("service " + service->name() + " {\n");
  for (int i = 0; i < service->method_count(); ++i) {
    result.append(DescribeMethod(service->method(i)));
  }
  result.append("}\n\n");
  return result;
}

grpc::string DescribeMethod(const google::protobuf::MethodDescriptor* method) {
  std::stringstream result;
  result << "  rpc " << method->name()
         << (method->client_streaming() ? "(stream " : "(")
         << method->input_type()->full_name() << ") returns "
         << (method->server_streaming() ? "(stream " : "(")
         << method->output_type()->full_name() << ") {}\n";
  if (method->options().deprecated()) {
    result << " DEPRECATED";
  }
  return result.str();
}

grpc::string SummarizeService(
    const google::protobuf::ServiceDescriptor* service) {
  grpc::string result;
  for (int i = 0; i < service->method_count(); ++i) {
    result.append(SummarizeMethod(service->method(i)));
  }
  return result;
}

grpc::string SummarizeMethod(const google::protobuf::MethodDescriptor* method) {
  grpc::string result = method->name();
  result.append("\n");
  return result;
}

}  // namespace testing
}  // namespace grpc