|  | @@ -0,0 +1,369 @@
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				|  |  | +/*
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				|  |  | + *
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				|  |  | + * Copyright 2016, Google Inc.
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				|  |  | + * All rights reserved.
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				|  |  | + *
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				|  |  | + * Redistribution and use in source and binary forms, with or without
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				|  |  | + * modification, are permitted provided that the following conditions are
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				|  |  | + * met:
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				|  |  | + *
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				|  |  | + *     * Redistributions of source code must retain the above copyright
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				|  |  | + * notice, this list of conditions and the following disclaimer.
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				|  |  | + *     * Redistributions in binary form must reproduce the above
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				|  |  | + * copyright notice, this list of conditions and the following disclaimer
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				|  |  | + * in the documentation and/or other materials provided with the
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				|  |  | + * distribution.
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				|  |  | + *     * Neither the name of Google Inc. nor the names of its
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				|  |  | + * contributors may be used to endorse or promote products derived from
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				|  |  | + * this software without specific prior written permission.
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				|  |  | + *
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				|  |  | + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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				|  |  | + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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				|  |  | + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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				|  |  | + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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				|  |  | + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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				|  |  | + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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				|  |  | + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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				|  |  | + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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				|  |  | + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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				|  |  | + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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				|  |  | + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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				|  |  | + *
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				|  |  | + */
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				|  |  | +
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				|  |  | +#include "grpc_tool.h"
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				|  |  | +
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				|  |  | +#include <unistd.h>
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				|  |  | +#include <fstream>
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				|  |  | +#include <iostream>
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				|  |  | +#include <memory>
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				|  |  | +#include <sstream>
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				|  |  | +#include <string>
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				|  |  | +
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				|  |  | +#include <gflags/gflags.h>
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				|  |  | +#include <grpc++/channel.h>
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				|  |  | +#include <grpc++/create_channel.h>
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				|  |  | +#include <grpc++/grpc++.h>
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				|  |  | +#include <grpc++/security/credentials.h>
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				|  |  | +#include <grpc++/support/string_ref.h>
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				|  |  | +#include <grpc/grpc.h>
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				|  |  | +#include <grpc/support/log.h>
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				|  |  | +#include "test/cpp/util/cli_call.h"
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				|  |  | +
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				|  |  | +#include "test/cpp/util/proto_file_parser.h"
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				|  |  | +#include "test/cpp/util/proto_reflection_descriptor_database.h"
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				|  |  | +#include "test/cpp/util/string_ref_helper.h"
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				|  |  | +#include "test/cpp/util/test_config.h"
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				|  |  | +
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				|  |  | +DEFINE_bool(enable_ssl, false, "Whether to use ssl/tls.");
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				|  |  | +DEFINE_bool(use_auth, false, "Whether to create default google credentials.");
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				|  |  | +DEFINE_string(input_binary_file, "",
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				|  |  | +              "Path to input file containing serialized request.");
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				|  |  | +DEFINE_string(output_binary_file, "",
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				|  |  | +              "Path to output file to write serialized response.");
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				|  |  | +DEFINE_string(metadata, "",
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				|  |  | +              "Metadata to send to server, in the form of key1:val1:key2:val2");
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				|  |  | +DEFINE_string(proto_path, ".", "Path to look for the proto file.");
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				|  |  | +// TODO(zyc): support a list of input proto files
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				|  |  | +DEFINE_string(protofiles, "", "Name of the proto file.");
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				|  |  | +
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				|  |  | +namespace grpc {
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				|  |  | +namespace testing {
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				|  |  | +namespace {
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				|  |  | +
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				|  |  | +class GrpcTool {
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				|  |  | + public:
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				|  |  | +  explicit GrpcTool();
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				|  |  | +  virtual ~GrpcTool() {}
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				|  |  | +  bool Help(int argc, const char** argv, OutputCallback callback);
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				|  |  | +  bool CallMethod(int argc, const char** argv, OutputCallback callback);
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				|  |  | +  void SetPrintCommandMode(int exit_status) {
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				|  |  | +    print_command_usage_ = true;
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				|  |  | +    usage_exit_status_ = exit_status;
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				|  |  | +  }
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				|  |  | +
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				|  |  | + private:
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				|  |  | +  void CommandUsage(const grpc::string& usage) const;
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				|  |  | +  bool print_command_usage_;
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				|  |  | +  int usage_exit_status_;
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				|  |  | +};
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				|  |  | +
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				|  |  | +template <typename T>
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				|  |  | +std::function<bool(GrpcTool*, int, const char**, OutputCallback)> BindWith4Args(
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				|  |  | +    T&& func) {
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				|  |  | +  return std::bind(std::forward<T>(func), std::placeholders::_1,
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				|  |  | +                   std::placeholders::_2, std::placeholders::_3,
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				|  |  | +                   std::placeholders::_4);
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				|  |  | +}
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				|  |  | +
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				|  |  | +template <typename T>
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				|  |  | +size_t ArraySize(T& a) {
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				|  |  | +  return ((sizeof(a) / sizeof(*(a))) /
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				|  |  | +          static_cast<size_t>(!(sizeof(a) % sizeof(*(a)))));
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				|  |  | +}
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				|  |  | +
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				|  |  | +void ParseMetadataFlag(
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				|  |  | +    std::multimap<grpc::string, grpc::string>* client_metadata) {
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				|  |  | +  if (FLAGS_metadata.empty()) {
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				|  |  | +    return;
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				|  |  | +  }
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				|  |  | +  std::vector<grpc::string> fields;
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				|  |  | +  const char* delim = ":";
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				|  |  | +  size_t cur, next = -1;
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				|  |  | +  do {
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				|  |  | +    cur = next + 1;
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				|  |  | +    next = FLAGS_metadata.find_first_of(delim, cur);
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				|  |  | +    fields.push_back(FLAGS_metadata.substr(cur, next - cur));
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				|  |  | +  } while (next != grpc::string::npos);
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				|  |  | +  if (fields.size() % 2) {
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				|  |  | +    fprintf(stderr, "Failed to parse metadata flag.\n");
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				|  |  | +    exit(1);
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				|  |  | +  }
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				|  |  | +  for (size_t i = 0; i < fields.size(); i += 2) {
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				|  |  | +    client_metadata->insert(
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				|  |  | +        std::pair<grpc::string, grpc::string>(fields[i], fields[i + 1]));
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				|  |  | +  }
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				|  |  | +}
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				|  |  | +
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				|  |  | +template <typename T>
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				|  |  | +void PrintMetadata(const T& m, const grpc::string& message) {
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				|  |  | +  if (m.empty()) {
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				|  |  | +    return;
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				|  |  | +  }
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				|  |  | +  fprintf(stderr, "%s\n", message.c_str());
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				|  |  | +  grpc::string pair;
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				|  |  | +  for (typename T::const_iterator iter = m.begin(); iter != m.end(); ++iter) {
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				|  |  | +    pair.clear();
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				|  |  | +    pair.append(iter->first.data(), iter->first.size());
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				|  |  | +    pair.append(" : ");
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				|  |  | +    pair.append(iter->second.data(), iter->second.size());
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				|  |  | +    fprintf(stderr, "%s\n", pair.c_str());
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				|  |  | +  }
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				|  |  | +}
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				|  |  | +
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				|  |  | +struct Command {
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				|  |  | +  const char* command;
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				|  |  | +  std::function<bool(GrpcTool*, int, const char**, OutputCallback)> function;
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				|  |  | +  int min_args;
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				|  |  | +  int max_args;
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				|  |  | +};
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				|  |  | +
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				|  |  | +const Command ops[] = {
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				|  |  | +    {"help", BindWith4Args(&GrpcTool::Help), 0, INT_MAX},
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				|  |  | +    // {"ls", BindWith4Args(&GrpcTool::ListServices), 1, 3},
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				|  |  | +    // {"list", BindWith4Args(&GrpcTool::ListServices), 1, 3},
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				|  |  | +    {"call", BindWith4Args(&GrpcTool::CallMethod), 2, 3},
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				|  |  | +    // {"type", BindWith4Args(&GrpcTool::PrintType), 2, 2},
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				|  |  | +    // {"parse", BindWith4Args(&GrpcTool::ParseMessage), 2, 3},
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				|  |  | +    // {"totext", BindWith4Args(&GrpcTool::ToText), 2, 3},
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				|  |  | +    // {"tobinary", BindWith4Args(&GrpcTool::ToBinary), 2, 3},
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				|  |  | +};
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				|  |  | +
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				|  |  | +void Usage(const grpc::string& msg) {
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				|  |  | +  fprintf(
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				|  |  | +      stderr,
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				|  |  | +      "%s\n"
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				|  |  | +      // "  grpc_cli ls ...         ; List services\n"
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				|  |  | +      "  grpc_cli call ...       ; Call method\n"
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				|  |  | +      // "  grpc_cli type ...       ; Print type\n"
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				|  |  | +      // "  grpc_cli parse ...      ; Parse message\n"
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				|  |  | +      // "  grpc_cli totext ...     ; Convert binary message to text\n"
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				|  |  | +      // "  grpc_cli tobinary ...   ; Convert text message to binary\n"
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				|  |  | +      "  grpc_cli help ...       ; Print this message, or per-command usage\n"
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				|  |  | +      "\n",
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				|  |  | +      msg.c_str());
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				|  |  | +
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				|  |  | +  exit(1);
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				|  |  | +}
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				|  |  | +
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				|  |  | +const Command* FindCommand(const grpc::string& name) {
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				|  |  | +  for (int i = 0; i < (int)ArraySize(ops); i++) {
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				|  |  | +    if (name == ops[i].command) {
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				|  |  | +      return &ops[i];
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				|  |  | +    }
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				|  |  | +  }
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				|  |  | +  return NULL;
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				|  |  | +}
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				|  |  | +}  // namespace
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				|  |  | +
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				|  |  | +int GrpcToolMainLib(int argc, const char** argv, OutputCallback callback) {
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				|  |  | +  if (argc < 2) {
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				|  |  | +    Usage("No command specified");
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  grpc::string command = argv[1];
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				|  |  | +  argc -= 2;
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				|  |  | +  argv += 2;
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				|  |  | +
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				|  |  | +  const Command* cmd = FindCommand(command);
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				|  |  | +  if (cmd != NULL) {
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				|  |  | +    GrpcTool grpc_tool;
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				|  |  | +    if (argc < cmd->min_args || argc > cmd->max_args) {
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				|  |  | +      // Force the command to print its usage message
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				|  |  | +      fprintf(stderr, "\nWrong number of arguments for %s\n", command.c_str());
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				|  |  | +      grpc_tool.SetPrintCommandMode(1);
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				|  |  | +      return cmd->function(&grpc_tool, -1, NULL, callback);
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				|  |  | +    }
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				|  |  | +    const bool ok = cmd->function(&grpc_tool, argc, argv, callback);
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				|  |  | +    return ok ? 0 : 1;
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				|  |  | +  } else {
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				|  |  | +    Usage("Invalid command '" + grpc::string(command.c_str()) + "'");
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				|  |  | +  }
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				|  |  | +  return 1;
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				|  |  | +}
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				|  |  | +
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				|  |  | +GrpcTool::GrpcTool() : print_command_usage_(false), usage_exit_status_(0) {}
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				|  |  | +
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				|  |  | +void GrpcTool::CommandUsage(const grpc::string& usage) const {
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				|  |  | +  if (print_command_usage_) {
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				|  |  | +    fprintf(stderr, "\n%s%s\n", usage.c_str(),
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				|  |  | +            (usage.empty() || usage[usage.size() - 1] != '\n') ? "\n" : "");
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				|  |  | +    exit(usage_exit_status_);
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				|  |  | +  }
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				|  |  | +}
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				|  |  | +
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				|  |  | +bool GrpcTool::Help(int argc, const char** argv, OutputCallback callback) {
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				|  |  | +  CommandUsage(
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				|  |  | +      "Print help\n"
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				|  |  | +      "  grpc_cli help [subcommand]\n");
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				|  |  | +
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				|  |  | +  if (argc == 0) {
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				|  |  | +    Usage("");
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				|  |  | +  } else {
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				|  |  | +    const Command* cmd = FindCommand(argv[0]);
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				|  |  | +    if (cmd == NULL) {
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				|  |  | +      Usage("Unknown command '" + grpc::string(argv[0]) + "'");
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				|  |  | +    }
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				|  |  | +    SetPrintCommandMode(0);
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				|  |  | +    cmd->function(this, -1, NULL, callback);
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				|  |  | +  }
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				|  |  | +  return true;
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				|  |  | +}
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				|  |  | +
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				|  |  | +bool GrpcTool::CallMethod(int argc, const char** argv,
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				|  |  | +                          OutputCallback callback) {
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				|  |  | +  CommandUsage(
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				|  |  | +      "Call method\n"
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				|  |  | +      "  grpc_cli call <address> <service>[.<method>] <request>\n"
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				|  |  | +      "    <address>                ; host:port\n"
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				|  |  | +      "    <service>                ; Exported service name\n"
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				|  |  | +      "    <method>                 ; Method name\n"
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				|  |  | +      "    <request>                ; Text protobuffer (overrides infile)\n"
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				|  |  | +      "    --protofiles             ; Comma separated proto files used as a"
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				|  |  | +      " fallback when parsing request/response\n"
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				|  |  | +      "    --proto_path             ; The search path of proto files, valid"
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				|  |  | +      " only when --protofiles is given\n"
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				|  |  | +      "    --metadata               ; The metadata to be sent to the server\n"
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				|  |  | +      "    --enable_ssl             ; Set whether to use tls\n"
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				|  |  | +      "    --use_auth               ; Set whether to create default google"
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				|  |  | +      " credentials\n"
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				|  |  | +      "    --outfile                ; Output filename (defaults to stdout)\n"
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				|  |  | +      "    --input_binary_file      ; Path to input file in binary format\n"
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				|  |  | +      "    --binary_output          ; Path to output file in binary format\n");
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				|  |  | +
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				|  |  | +  std::stringstream output_ss;
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				|  |  | +  grpc::string request_text;
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				|  |  | +  grpc::string server_address(argv[0]);
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				|  |  | +  grpc::string method_name(argv[1]);
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				|  |  | +  std::unique_ptr<grpc::testing::ProtoFileParser> parser;
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				|  |  | +  grpc::string serialized_request_proto;
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				|  |  | +
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				|  |  | +  if (argc == 3) {
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				|  |  | +    request_text = argv[2];
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  std::shared_ptr<grpc::ChannelCredentials> creds;
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				|  |  | +  if (!FLAGS_enable_ssl) {
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				|  |  | +    creds = grpc::InsecureChannelCredentials();
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				|  |  | +  } else {
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				|  |  | +    if (FLAGS_use_auth) {
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				|  |  | +      creds = grpc::GoogleDefaultCredentials();
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				|  |  | +    } else {
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				|  |  | +      creds = grpc::SslCredentials(grpc::SslCredentialsOptions());
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				|  |  | +    }
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				|  |  | +  }
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				|  |  | +  std::shared_ptr<grpc::Channel> channel =
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				|  |  | +      grpc::CreateChannel(server_address, creds);
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				|  |  | +
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				|  |  | +  if (request_text.empty() && FLAGS_input_binary_file.empty()) {
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				|  |  | +    if (isatty(STDIN_FILENO)) {
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				|  |  | +      std::cout << "reading request message from stdin..." << std::endl;
 | 
	
		
			
				|  |  | +    }
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				|  |  | +    std::stringstream input_stream;
 | 
	
		
			
				|  |  | +    input_stream << std::cin.rdbuf();
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				|  |  | +    request_text = input_stream.str();
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  if (!request_text.empty()) {
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				|  |  | +    if (!FLAGS_protofiles.empty()) {
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				|  |  | +      parser.reset(new grpc::testing::ProtoFileParser(
 | 
	
		
			
				|  |  | +          FLAGS_proto_path, FLAGS_protofiles, method_name));
 | 
	
		
			
				|  |  | +    } else {
 | 
	
		
			
				|  |  | +      parser.reset(new grpc::testing::ProtoFileParser(channel, method_name));
 | 
	
		
			
				|  |  | +    }
 | 
	
		
			
				|  |  | +    method_name = parser->GetFullMethodName();
 | 
	
		
			
				|  |  | +    if (parser->HasError()) {
 | 
	
		
			
				|  |  | +      return 1;
 | 
	
		
			
				|  |  | +    }
 | 
	
		
			
				|  |  | +
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				|  |  | +    if (!FLAGS_input_binary_file.empty()) {
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				|  |  | +      std::cout
 | 
	
		
			
				|  |  | +          << "warning: request given in argv, ignoring --input_binary_file"
 | 
	
		
			
				|  |  | +          << std::endl;
 | 
	
		
			
				|  |  | +    }
 | 
	
		
			
				|  |  | +  }
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  if (parser) {
 | 
	
		
			
				|  |  | +    serialized_request_proto =
 | 
	
		
			
				|  |  | +        parser->GetSerializedProto(request_text, true /* is_request */);
 | 
	
		
			
				|  |  | +    if (parser->HasError()) {
 | 
	
		
			
				|  |  | +      return 1;
 | 
	
		
			
				|  |  | +    }
 | 
	
		
			
				|  |  | +  } else if (!FLAGS_input_binary_file.empty()) {
 | 
	
		
			
				|  |  | +    std::ifstream input_file(FLAGS_input_binary_file,
 | 
	
		
			
				|  |  | +                             std::ios::in | std::ios::binary);
 | 
	
		
			
				|  |  | +    std::stringstream input_stream;
 | 
	
		
			
				|  |  | +    input_stream << input_file.rdbuf();
 | 
	
		
			
				|  |  | +    serialized_request_proto = input_stream.str();
 | 
	
		
			
				|  |  | +  }
 | 
	
		
			
				|  |  | +  std::cout << "connecting to " << server_address << std::endl;
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  grpc::string serialized_response_proto;
 | 
	
		
			
				|  |  | +  std::multimap<grpc::string, grpc::string> client_metadata;
 | 
	
		
			
				|  |  | +  std::multimap<grpc::string_ref, grpc::string_ref> server_initial_metadata,
 | 
	
		
			
				|  |  | +      server_trailing_metadata;
 | 
	
		
			
				|  |  | +  ParseMetadataFlag(&client_metadata);
 | 
	
		
			
				|  |  | +  PrintMetadata(client_metadata, "Sending client initial metadata:");
 | 
	
		
			
				|  |  | +  grpc::Status s = grpc::testing::CliCall::Call(
 | 
	
		
			
				|  |  | +      channel, method_name, serialized_request_proto,
 | 
	
		
			
				|  |  | +      &serialized_response_proto, client_metadata, &server_initial_metadata,
 | 
	
		
			
				|  |  | +      &server_trailing_metadata);
 | 
	
		
			
				|  |  | +  PrintMetadata(server_initial_metadata,
 | 
	
		
			
				|  |  | +                "Received initial metadata from server:");
 | 
	
		
			
				|  |  | +  PrintMetadata(server_trailing_metadata,
 | 
	
		
			
				|  |  | +                "Received trailing metadata from server:");
 | 
	
		
			
				|  |  | +  if (s.ok()) {
 | 
	
		
			
				|  |  | +    std::cout << "Rpc succeeded with OK status" << std::endl;
 | 
	
		
			
				|  |  | +    if (parser) {
 | 
	
		
			
				|  |  | +      grpc::string response_text = parser->GetTextFormat(
 | 
	
		
			
				|  |  | +          serialized_response_proto, false /* is_request */);
 | 
	
		
			
				|  |  | +      if (parser->HasError()) {
 | 
	
		
			
				|  |  | +        return false;
 | 
	
		
			
				|  |  | +      }
 | 
	
		
			
				|  |  | +      output_ss << "Response: \n " << response_text << std::endl;
 | 
	
		
			
				|  |  | +    }
 | 
	
		
			
				|  |  | +    if (!FLAGS_output_binary_file.empty()) {
 | 
	
		
			
				|  |  | +      std::ofstream output_file(FLAGS_output_binary_file,
 | 
	
		
			
				|  |  | +                                std::ios::trunc | std::ios::binary);
 | 
	
		
			
				|  |  | +      output_file << serialized_response_proto;
 | 
	
		
			
				|  |  | +    }
 | 
	
		
			
				|  |  | +  } else {
 | 
	
		
			
				|  |  | +    std::cout << "Rpc failed with status code " << s.error_code()
 | 
	
		
			
				|  |  | +              << ", error message: " << s.error_message() << std::endl;
 | 
	
		
			
				|  |  | +  }
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  return callback(output_ss.str());
 | 
	
		
			
				|  |  | +}
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +}  // namespace testing
 | 
	
		
			
				|  |  | +}  // namespace grpc
 |