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/*
* Copyright 2017 The Android Open Source Project
*
* 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.
*/
/******************************************************************************
*
* The original Work has been changed by NXP Semiconductors.
*
* Copyright (C) 2019 NXP Semiconductors
*
* 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.
*
******************************************************************************/
#include "config.h"
#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/parseint.h>
#include <android-base/strings.h>
using namespace ::std;
using namespace ::android::base;
namespace {
bool parseBytesString(std::string in, std::vector<uint8_t>& out) {
vector<string> values = Split(in, ":");
if (values.size() == 0) return false;
for (const string& value : values) {
if (value.length() != 2) return false;
uint8_t tmp = 0;
string hexified = "0x";
hexified.append(value);
if (!ParseUint(hexified.c_str(), &tmp)) return false;
out.push_back(tmp);
}
return true;
}
} // namespace
ConfigValue::ConfigValue() {
value_unsigned_ = 0;
type_ = UNSIGNED;
}
ConfigValue::Type ConfigValue::getType() const { return type_; }
std::string ConfigValue::getString() const {
CHECK(type_ == STRING);
return value_string_;
};
unsigned ConfigValue::getUnsigned() const {
CHECK(type_ == UNSIGNED);
return value_unsigned_;
};
std::vector<uint8_t> ConfigValue::getBytes() const {
CHECK(type_ == BYTES);
return value_bytes_;
};
bool ConfigValue::parseFromString(std::string in) {
if (in.length() > 1 && in[0] == '"' && in[in.length() - 1] == '"') {
CHECK(in.length() > 2); // Don't allow empty strings
type_ = STRING;
value_string_ = in.substr(1, in.length() - 2);
return true;
}
if (in.length() > 1 && in[0] == '{' && in[in.length() - 1] == '}') {
CHECK(in.length() >= 4); // Needs at least one byte
type_ = BYTES;
return parseBytesString(in.substr(1, in.length() - 2), value_bytes_);
}
unsigned tmp = 0;
if (ParseUint(in.c_str(), &tmp)) {
type_ = UNSIGNED;
value_unsigned_ = tmp;
return true;
}
return false;
}
void ConfigFile::parseFromFile(const std::string& file_name) {
string config;
bool config_read = ReadFileToString(file_name, &config);
CHECK(config_read);
LOG(INFO) << "ConfigFile - Parsing file '" << file_name << "'";
parseFromString(config);
}
void ConfigFile::parseFromString(const std::string& config) {
stringstream ss(config);
string line;
while (getline(ss, line)) {
line = Trim(line);
if (line.empty()) continue;
if (line.at(0) == '#') continue;
if (line.at(0) == 0) continue;
auto search = line.find('=');
CHECK(search != string::npos);
string key(Trim(line.substr(0, search)));
string value_string(Trim(line.substr(search + 1, string::npos)));
ConfigValue value;
bool value_parsed = value.parseFromString(value_string);
CHECK(value_parsed);
CHECK(!hasKey(key));
values_.emplace(key, value);
LOG(INFO) << "ConfigFile - [" << key << "] = " << value_string;
}
}
bool ConfigFile::hasKey(const std::string& key) {
return values_.count(key) != 0;
}
ConfigValue& ConfigFile::getValue(const std::string& key) {
CHECK(values_.find(key) != values_.end());
auto search = values_.find(key);
return search->second;
}
std::string ConfigFile::getString(const std::string& key) {
return getValue(key).getString();
}
unsigned ConfigFile::getUnsigned(const std::string& key) {
return getValue(key).getUnsigned();
}
std::vector<uint8_t> ConfigFile::getBytes(const std::string& key) {
return getValue(key).getBytes();
}
void ConfigFile::clear() { values_.clear(); }
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