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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "fileconfigreader.h"
#include <vespa/config/common/exceptions.h>
#include <vespa/config/common/misc.h>
#include <vespa/config/common/configvalue.h>
#include <vespa/vespalib/util/exceptions.h>
#include <fstream>
#include <sstream>
namespace config {
template <typename ConfigType>
FileConfigReader<ConfigType>::FileConfigReader(const vespalib::string & fileName)
: _fileName(fileName)
{
}
template <typename ConfigType>
std::unique_ptr<ConfigType>
FileConfigReader<ConfigType>::read(const ConfigFormatter & formatter)
{
ConfigDataBuffer buffer;
std::ifstream file(_fileName.c_str());
if (!file.is_open())
throw ConfigReadException("error: unable to read file '%s'", _fileName.c_str());
std::stringstream buf;
buf << file.rdbuf();
buffer.setEncodedString(buf.str());
formatter.decode(buffer);
return std::make_unique<ConfigType>(buffer);
}
template <typename ConfigType>
std::unique_ptr<ConfigType>
FileConfigReader<ConfigType>::read()
{
StringVector lines;
std::ifstream f(_fileName.c_str());
if (f.fail())
throw vespalib::IllegalArgumentException(std::string("Unable to open file ") + _fileName);
std::string line;
for (std::getline(f, line); f; std::getline(f, line)) {
lines.push_back(line);
}
return std::make_unique<ConfigType>(ConfigValue(std::move(lines)));
}
} // namespace config
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