/*
 * MilleBinary.cpp
 *
 *  Created on: Aug 31, 2011
 *      Author: kleinwrt
 */

#include "MilleBinary.h"

//! Namespace for the general broken lines package
namespace gbl {

/// Create binary file.
/**
 * \param [in] fileName File name
 * \param [in] aSize Buffer size
 */
MilleBinary::MilleBinary(const std::string fileName, unsigned int aSize) :
		binaryFile(fileName.c_str(), std::ios::binary | std::ios::out), intBuffer(), floatBuffer() {
	intBuffer.reserve(aSize);
	floatBuffer.reserve(aSize);
	intBuffer.push_back(0); // first word is error counter
	floatBuffer.push_back(0.);
}

MilleBinary::~MilleBinary() {
	binaryFile.close();
}

/// Add data block to (end of) record.
/**
 * \param [in] aMeas Value
 * \param [in] aErr Error
 * \param [in] indLocal List of labels of local parameters
 * \param [in] derLocal List of derivatives for local parameters
 * \param [in] labGlobal List of labels of global parameters
 * \param [in] derGlobal List of derivatives for global parameters
 */
void MilleBinary::addData(float aMeas, float aErr,
		const std::vector<unsigned int> &indLocal,
		const std::vector<double> &derLocal, const std::vector<int> &labGlobal,
		const std::vector<double> &derGlobal) {

	intBuffer.push_back(0);
	floatBuffer.push_back(aMeas);
	for (unsigned int i = 0; i < indLocal.size(); ++i) {
		intBuffer.push_back(indLocal[i]);
		floatBuffer.push_back(derLocal[i]);
	}
	intBuffer.push_back(0);
	floatBuffer.push_back(aErr);
	for (unsigned int i = 0; i < labGlobal.size(); ++i) {
		if (derGlobal[i]) {
			intBuffer.push_back(labGlobal[i]);
			floatBuffer.push_back(derGlobal[i]);
		}
	}
}

/// Write record to file.
void MilleBinary::writeRecord() {

	const int recordLength = intBuffer.size() * 2;
	binaryFile.write(reinterpret_cast<const char*>(&recordLength),
			sizeof(recordLength));
	binaryFile.write(reinterpret_cast<char*>(&floatBuffer[0]),
			floatBuffer.size() * sizeof(floatBuffer[0]));
	binaryFile.write(reinterpret_cast<char*>(&intBuffer[0]),
			intBuffer.size() * sizeof(intBuffer[0]));
	// start with new record
	intBuffer.resize(1);
	floatBuffer.resize(1);
}
}