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arangodb/lib/ApplicationFeatures/LanguageFeature.cpp

78 lines
2.5 KiB
C++

////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2016 ArangoDB GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Dr. Frank Celler
////////////////////////////////////////////////////////////////////////////////
#include "ApplicationFeatures/LanguageFeature.h"
#include "Basics/Utf8Helper.h"
#include "Logger/Logger.h"
#include "ProgramOptions/ProgramOptions.h"
#include "ProgramOptions/Section.h"
using namespace arangodb;
using namespace arangodb::basics;
using namespace arangodb::options;
LanguageFeature::LanguageFeature(
application_features::ApplicationServer* server)
: ApplicationFeature(server, "Language"),
_binaryPath(server->getBinaryPath()){
setOptional(false);
requiresElevatedPrivileges(false);
startsAfter("Logger");
}
void LanguageFeature::collectOptions(
std::shared_ptr<options::ProgramOptions> options) {
options->addHiddenOption("--default-language", "ISO-639 language code",
new StringParameter(&_language));
}
void LanguageFeature::prepare() {
if (!Utf8Helper::DefaultUtf8Helper.setCollatorLanguage(_language, _binaryPath)) {
std::string msg =
"cannot initialize ICU; please make sure ICU*dat is available; "
"the variable ICU_DATA='";
if (getenv("ICU_DATA") != nullptr) {
msg += getenv("ICU_DATA");
}
msg += "' should point the directory containing the ICU*dat file.";
LOG(FATAL) << msg;
FATAL_ERROR_EXIT();
}
}
void LanguageFeature::start() {
std::string languageName;
if (Utf8Helper::DefaultUtf8Helper.getCollatorCountry() != "") {
languageName =
std::string(Utf8Helper::DefaultUtf8Helper.getCollatorLanguage() + "_" +
Utf8Helper::DefaultUtf8Helper.getCollatorCountry());
} else {
languageName = Utf8Helper::DefaultUtf8Helper.getCollatorLanguage();
}
LOG(DEBUG) << "using default language '" << languageName << "'";
}