Status.cc

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/* -*- c++ -*-
 * Copyright (C) 2007-2015 Hypertable, Inc.
 *
 * This file is part of Hypertable.
 *
 * Hypertable is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; version 3 of the
 * License, or any later version.
 *
 * Hypertable is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */


#include <Common/Compat.h>

#include "Status.h"

#include <Common/Serialization.h>
#include <Common/String.h>

#include <boost/algorithm/string.hpp>

using namespace Hypertable;
using namespace std;

const char *Status::code_to_string(Code code) {
  switch (code) {
  case Code::OK:
    return "OK";
  case Code::WARNING:
    return "WARNING";
  case Code::CRITICAL:
    return "CRITICAL";
  default:
    break;
  }
  return "UNKNOWN";
}

Status::Code Status::string_to_code(std::string str) {
  boost::trim_if(str, boost::is_any_of("'\""));
  if (str == "OK")
    return Code::OK;
  else if (str == "WARNING")
    return Code::WARNING;
  else if (str == "CRITICAL")
    return Code::CRITICAL;
  else if (str == "UNKNOWN")
    return Code::UNKNOWN;
  HT_THROWF(Error::INVALID_ARGUMENT, "status code string '%s'", str.c_str());
}

uint8_t Status::encoding_version() const {
  return 1;
}

size_t Status::encoded_length_internal() const {
  return 4 + Serialization::encoded_length_vstr(m_text);;
}

void Status::encode_internal(uint8_t **bufp) const {
  Serialization::encode_i32(bufp, static_cast<int32_t>(m_code));
  Serialization::encode_vstr(bufp, m_text);
}

void Status::decode_internal(uint8_t version, const uint8_t **bufp,
                             size_t *remainp) {
  lock_guard<mutex> lock(m_mutex);
  m_code = static_cast<Code>(Serialization::decode_i32(bufp, remainp));
  m_text = Serialization::decode_vstr(bufp, remainp);
}

std::string Status::format_output_line(const std::string &service) {
  lock_guard<mutex> lock(m_mutex);
  if (m_code == Code::OK && m_text.empty())
    return format("%s OK", service.c_str());
  return format("%s %s - %s", service.c_str(), code_to_string(m_code), m_text.c_str());
}