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ebusd/src/lib/ebus/data.cpp
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/*
* ebusd - daemon for communication with eBUS heating systems.
* Copyright (C) 2014-2017 John Baier <ebusd@ebusd.eu>
*
* This program 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, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "lib/ebus/data.h"
#include <math.h>
#include <iostream>
#include <sstream>
#include <iomanip>
#include <vector>
#include <cstring>
#include <algorithm>
namespace ebusd {
using std::dec;
using std::hex;
using std::setw;
/** the week day names. */
static const char* dayNames[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
size_t getDataFieldId(const string name) {
if (name == "name" || name.find("field") != string::npos) {
return DATAFIELD_NAME;
}
if (name.find("part") != string::npos) {
return DATAFIELD_PART;
}
if (name.find("type") != string::npos) {
return DATAFIELD_TYPE;
}
if (name.find("divisor") != string::npos || name.find("values") != string::npos) {
return DATAFIELD_DIVISORVALUES;
}
if (name == "unit") {
return DATAFIELD_UNIT;
}
if (name == "comment") {
return DATAFIELD_COMMENT;
}
return UINT_MAX;
}
string getDataFieldName(const size_t fieldId) {
switch (fieldId) {
case DATAFIELD_NAME:
return "name";
case DATAFIELD_PART:
return "part";
case DATAFIELD_TYPE:
return "type";
case DATAFIELD_DIVISORVALUES:
return "divisor/values";
case DATAFIELD_UNIT:
return "unit";
case DATAFIELD_COMMENT:
return "comment";
default:
return "";
};
}
result_t DataField::create(vector< map<string, string> >& rows, string& errorDescription,
DataFieldTemplates* templates, DataField*& returnField,
const bool isWriteMessage,
const bool isTemplate, const bool isBroadcastOrMasterDestination,
const size_t maxFieldLength) {
// template: name,[,part]basetype[:len]|template[:name][,[divisor|values][,[unit][,[comment]]]]
// std: name,part,basetype[:len]|template[:name][,[divisor|values][,[unit][,[comment]]]]
vector<SingleDataField*> fields;
string firstName;
result_t result = RESULT_OK;
if (rows.empty()) {
return RESULT_ERR_EOF;
}
for (auto row : rows) {
if (result != RESULT_OK) {
break;
}
const string name = row["name"];
PartType partType;
int divisor = 0;
bool hasPart = false;
if (isTemplate) {
partType = pt_any;
} else {
string part = row["part"];
hasPart = !part.empty();
if (hasPart) {
FileReader::tolower(part);
}
if (isBroadcastOrMasterDestination
|| (isWriteMessage && !hasPart)
|| part == "m") { // master data
partType = pt_masterData;
} else if ((!isWriteMessage && !hasPart)
|| part == "s") { // slave data
partType = pt_slaveData;
} else {
errorDescription = "part "+part+" in "+MappedFileReader::combineRow(row);
result = hasPart ? RESULT_ERR_INVALID_ARG : RESULT_ERR_MISSING_ARG;
break;
}
}
string comment = row["comment"];
if (comment == NULL_VALUE) {
comment = "";
}
if (fields.empty()) {
firstName = name;
}
const string typeStr = row["type"]; // basetype[:len]|template[:name]
if (typeStr.empty()) {
errorDescription = "field type in "+MappedFileReader::combineRow(row);
result = RESULT_ERR_MISSING_ARG;
break;
}
map<unsigned int, string> values;
string constantValue;
bool verifyValue = false;
const string divisorStr = row["divisor/values"]; // [divisor|values]
if (!divisorStr.empty()) {
size_t equalPos = divisorStr.find('=');
if (equalPos == string::npos) {
divisor = parseSignedInt(divisorStr.c_str(), 10, -MAX_DIVISOR, MAX_DIVISOR, result);
if (result != RESULT_OK) {
errorDescription = "divisor "+divisorStr+" in "+MappedFileReader::combineRow(row);
}
} else if (equalPos == 0 && divisorStr.length() > 1) {
verifyValue = divisorStr[1] == '='; // == forced verification of constant value
if (verifyValue && divisorStr.length() == 1) {
errorDescription = "divisor "+divisorStr+" in "+MappedFileReader::combineRow(row);
result = RESULT_ERR_INVALID_LIST;
break;
}
constantValue = divisorStr.substr(equalPos+(verifyValue?2:1));
} else {
string token;
istringstream stream(divisorStr);
while (getline(stream, token, VALUE_SEPARATOR)) {
FileReader::trim(token);
const char* str = token.c_str();
char* strEnd = NULL;
unsigned long id;
if (strncasecmp(str, "0x", 2) == 0) {
str += 2;
id = strtoul(str, &strEnd, 16); // hexadecimal
} else {
id = strtoul(str, &strEnd, 10); // decimal
}
if (strEnd == NULL || strEnd == str || id > MAX_VALUE) {
errorDescription = "value "+token+" in "+MappedFileReader::combineRow(row);
result = RESULT_ERR_INVALID_LIST;
break;
}
// remove blanks around '=' sign
while (*strEnd == ' ') strEnd++;
if (*strEnd != '=') {
errorDescription = "value "+token+" in "+MappedFileReader::combineRow(row);
result = RESULT_ERR_INVALID_LIST;
break;
}
token = string(strEnd + 1);
FileReader::trim(token);
values[(unsigned int)id] = token;
}
}
if (result != RESULT_OK) {
break;
}
}
string unit = row["unit"];
if (unit == NULL_VALUE) {
unit = "";
}
bool firstType = true;
string token;
istringstream stream(typeStr);
while (result == RESULT_OK && getline(stream, token, VALUE_SEPARATOR)) {
FileReader::trim(token);
DataField* templ = templates->get(token);
size_t pos = token.find(LENGTH_SEPARATOR);
if (templ == NULL && pos != string::npos) {
templ = templates->get(token.substr(0, pos));
}
if (templ == NULL) { // basetype[:len]
size_t length;
string typeName;
if (pos == string::npos) {
length = 0; // no length specified
typeName = token;
} else {
if (pos+2 == token.length() && token[pos+1] == '*') {
length = REMAIN_LEN;
} else {
length = (size_t)parseInt(token.substr(pos+1).c_str(), 10, 1, (unsigned int)maxFieldLength, result);
if (result != RESULT_OK) {
errorDescription = "field type "+token+" in "+MappedFileReader::combineRow(row);
break;
}
}
typeName = token.substr(0, pos);
}
transform(typeName.begin(), typeName.end(), typeName.begin(), ::toupper);
SingleDataField* add = NULL;
result = SingleDataField::create(typeName, length, firstType ? name : "", firstType ? comment : "",
firstType ? unit : "", partType, divisor, values, constantValue, verifyValue, add);
if (add != NULL) {
fields.push_back(add);
} else {
if (result == RESULT_OK) {
errorDescription = "field type " + typeName+" in "+MappedFileReader::combineRow(row);
result = RESULT_ERR_NOTFOUND; // type not found
} else {
errorDescription = "create field in "+MappedFileReader::combineRow(row);
}
}
} else if (!constantValue.empty()) {
errorDescription = "constant value "+constantValue+" in "+MappedFileReader::combineRow(row);
result = RESULT_ERR_INVALID_ARG; // invalid value list
} else { // template[:name]
string fieldName;
bool lastType = stream.eof();
if (pos != string::npos) { // replacement name specified
fieldName = token.substr(pos+1);
} else {
fieldName = (firstType && lastType) ? name : "";
}
result = templ->derive(fieldName, firstType ? comment : "", firstType ? unit : "", partType, divisor, values,
fields);
if (result != RESULT_OK) {
errorDescription = "derive field "+fieldName+" in "+MappedFileReader::combineRow(row);
}
}
firstType = false;
}
}
if (result != RESULT_OK) {
while (!fields.empty()) { // cleanup already created fields
delete fields.back();
fields.pop_back();
}
return result;
}
if (fields.size() == 1) {
returnField = fields[0];
} else {
returnField = new DataFieldSet(firstName, "", fields);
}
return RESULT_OK;
}
void DataField::dumpString(ostream& output, const string str, const bool prependFieldSeparator) {
if (prependFieldSeparator) {
output << FIELD_SEPARATOR;
}
if (str.find_first_of(FIELD_SEPARATOR) == string::npos) {
output << str;
} else {
output << TEXT_SEPARATOR << str << TEXT_SEPARATOR;
}
}
string DataField::getDayName(int day) {
if (day < 0 || day > 6) {
return "";
}
return dayNames[day];
}
result_t SingleDataField::create(const string id, const size_t length,
const string name, const string comment, const string unit,
const PartType partType, int divisor, map<unsigned int, string> values,
const string constantValue, const bool verifyValue, SingleDataField* &returnField) {
DataType* dataType = DataTypeList::getInstance()->get(id, length == REMAIN_LEN ? 0 : length);
if (!dataType) {
return RESULT_ERR_NOTFOUND;
}
size_t bitCount = dataType->getBitCount();
size_t byteCount = (bitCount + 7) / 8;
if (dataType->isAdjustableLength()) {
// check length
if ((bitCount % 8) != 0) {
if (length == 0) {
bitCount = 1; // default bit count: 1 bit
} else if (length <= bitCount) {
bitCount = length;
} else {
return RESULT_ERR_OUT_OF_RANGE; // invalid length
}
byteCount = (bitCount + 7) / 8;
} else if (length == 0) {
byteCount = 1; // default byte count: 1 byte
} else if (length <= byteCount || length == REMAIN_LEN) {
byteCount = length;
} else {
return RESULT_ERR_OUT_OF_RANGE; // invalid length
}
}
if (!constantValue.empty()) {
returnField = new ConstantDataField(name, comment, unit, dataType, partType, byteCount, constantValue, verifyValue);
return RESULT_OK;
}
if (dataType->isNumeric()) {
NumberDataType* numType = reinterpret_cast<NumberDataType*>(dataType);
if (values.empty() && numType->hasFlag(DAY)) {
for (unsigned int i = 0; i < sizeof(dayNames) / sizeof(dayNames[0]); i++) {
values[numType->getMinValue() + i] = dayNames[i];
}
}
result_t result = numType->derive(divisor, bitCount, numType);
if (result != RESULT_OK) {
return result;
}
if (values.empty()) {
returnField = new SingleDataField(name, comment, unit, numType, partType, byteCount);
return RESULT_OK;
}
if (values.begin()->first < numType->getMinValue() || values.rbegin()->first > numType->getMaxValue()) {
return RESULT_ERR_OUT_OF_RANGE;
}
returnField = new ValueListDataField(name, comment, unit, numType, partType, byteCount, values);
return RESULT_OK;
}
if (divisor != 0 || !values.empty()) {
return RESULT_ERR_INVALID_ARG; // cannot set divisor or values for string field
}
returnField = new SingleDataField(name, comment, unit, dataType, partType, byteCount);
return RESULT_OK;
}
void SingleDataField::dump(ostream& output) {
output << setw(0) << dec; // initialize formatting
dumpString(output, m_name, false);
output << FIELD_SEPARATOR;
if (m_partType == pt_masterData) {
output << "m";
} else if (m_partType == pt_slaveData) {
output << "s";
}
output << FIELD_SEPARATOR;
m_dataType->dump(output, m_length);
dumpString(output, m_unit);
dumpString(output, m_comment);
}
result_t SingleDataField::read(SymbolString& data, size_t offset,
unsigned int& output, const char* fieldName, ssize_t fieldIndex) {
if (m_partType == pt_any) {
return RESULT_ERR_INVALID_PART;
}
if ((data.isMaster() ? pt_masterData : pt_slaveData) != m_partType) {
return RESULT_EMPTY;
}
bool remainder = m_length == REMAIN_LEN && m_dataType->isAdjustableLength();
if (offset + (remainder?1:m_length) > data.getDataSize()) {
return RESULT_ERR_INVALID_POS;
}
if (isIgnored() || (fieldName != NULL && (m_name != fieldName || fieldIndex > 0))) {
return RESULT_EMPTY;
}
return m_dataType->readRawValue(data, offset, m_length, output);
}
result_t SingleDataField::read(SymbolString& data, size_t offset,
ostringstream& output, OutputFormat outputFormat, ssize_t outputIndex,
bool leadingSeparator, const char* fieldName, ssize_t fieldIndex) {
if (m_partType == pt_any) {
return RESULT_ERR_INVALID_PART;
}
if ((data.isMaster() ? pt_masterData : pt_slaveData) != m_partType) {
return RESULT_OK;
}
bool remainder = m_length == REMAIN_LEN && m_dataType->isAdjustableLength();
if (offset + (remainder?1:m_length) > data.getDataSize()) {
return RESULT_ERR_INVALID_POS;
}
if (isIgnored() || (fieldName != NULL && (m_name != fieldName || fieldIndex > 0))) {
return RESULT_EMPTY;
}
bool shortFormat = outputFormat & OF_SHORT;
if (outputFormat & OF_JSON) {
if (leadingSeparator) {
output << ",";
}
if (!shortFormat) {
output << "\n ";
}
if (outputIndex >= 0 || m_name.empty() || !(outputFormat & OF_NAMES)) {
output << "\"" << static_cast<signed int>(outputIndex < 0 ? 0 : outputIndex) << "\":";
if (!shortFormat) {
output << " {\"name\": \"" << m_name << "\"" << ", \"value\": ";
}
} else {
output << "\"" << m_name << "\":";
if (!shortFormat) {
output << " {\"value\": ";
}
}
} else {
if (leadingSeparator) {
output << UI_FIELD_SEPARATOR;
}
if (outputFormat & OF_NAMES) {
output << m_name << "=";
}
}
result_t result = readSymbols(data, offset, output, outputFormat);
if (result != RESULT_OK) {
return result;
}
if (!shortFormat && (outputFormat & OF_UNITS) && m_unit.length() > 0) {
if (outputFormat & OF_JSON) {
output << ", \"unit\": \"" << m_unit << '"';
} else {
output << " " << m_unit;
}
}
if (!shortFormat && (outputFormat & OF_COMMENTS) && m_comment.length() > 0) {
if (outputFormat & OF_JSON) {
output << ", \"comment\": \"" << m_comment << '"';
} else {
output << " [" << m_comment << "]";
}
}
if (!shortFormat && (outputFormat & OF_JSON)) {
output << "}";
}
return RESULT_OK;
}
result_t SingleDataField::write(istringstream& input, SymbolString& data,
size_t offset, char separator, size_t* length) {
if (m_partType == pt_any) {
return RESULT_ERR_INVALID_PART;
}
if ((data.isMaster() ? pt_masterData : pt_slaveData) != m_partType) {
return RESULT_OK;
}
return writeSymbols(input, (const size_t)offset, data, length);
}
result_t SingleDataField::readSymbols(SymbolString& input,
const size_t offset,
ostringstream& output, OutputFormat outputFormat) {
return m_dataType->readSymbols(input, offset, m_length, output, outputFormat);
}
result_t SingleDataField::writeSymbols(istringstream& input,
const size_t offset,
SymbolString& output, size_t* usedLength) {
return m_dataType->writeSymbols(input, offset, m_length, output, usedLength);
}
SingleDataField* SingleDataField::clone() {
return new SingleDataField(*this);
}
result_t SingleDataField::derive(string name, string comment,
string unit, const PartType partType,
int divisor, map<unsigned int, string> values,
vector<SingleDataField*>& fields) {
if (m_partType != pt_any && partType == pt_any) {
return RESULT_ERR_INVALID_PART; // cannot create a template from a concrete instance
}
bool numeric = m_dataType->isNumeric();
if (!numeric && (divisor != 0 || !values.empty())) {
return RESULT_ERR_INVALID_ARG; // cannot set divisor or values for non-numeric field
}
if (name.empty()) {
name = m_name;
}
if (comment.empty()) {
comment = m_comment;
}
if (unit.empty()) {
unit = m_unit;
}
DataType* dataType = m_dataType;
if (numeric) {
NumberDataType* numType = reinterpret_cast<NumberDataType*>(dataType);
result_t result = numType->derive(divisor, 0, numType);
if (result != RESULT_OK) {
return result;
}
dataType = numType;
}
if (values.empty()) {
fields.push_back(new SingleDataField(name, comment, unit, dataType, partType, m_length));
} else if (numeric) {
fields.push_back(new ValueListDataField(name, comment, unit, reinterpret_cast<NumberDataType*>(dataType),
partType, m_length, values));
} else {
return RESULT_ERR_INVALID_ARG;
}
return RESULT_OK;
}
bool SingleDataField::hasField(const char* fieldName, bool numeric) {
bool numericType = m_dataType->isNumeric();
return numeric == numericType && (fieldName == NULL || fieldName == m_name);
}
size_t SingleDataField::getLength(PartType partType, size_t maxLength) {
if (partType != m_partType) {
return 0;
}
bool remainder = m_length == REMAIN_LEN && m_dataType->isAdjustableLength();
return remainder ? maxLength : m_length;
}
bool SingleDataField::hasFullByteOffset(bool after) {
if (m_length > 1) {
return true;
}
int16_t firstBit;
if (m_dataType->isNumeric()) {
NumberDataType* num = reinterpret_cast<NumberDataType*>(m_dataType);
firstBit = num->getFirstBit();
} else {
firstBit = 0;
}
return (m_dataType->getBitCount() % 8) == 0
|| (after && firstBit + (m_dataType->getBitCount() % 8) >= 8);
}
ValueListDataField* ValueListDataField::clone() {
return new ValueListDataField(*this);
}
result_t ValueListDataField::derive(string name, string comment,
string unit, const PartType partType,
int divisor, map<unsigned int, string> values,
vector<SingleDataField*>& fields) {
if (m_partType != pt_any && partType == pt_any) {
return RESULT_ERR_INVALID_PART; // cannot create a template from a concrete instance
}
if (name.empty()) {
name = m_name;
}
if (comment.empty()) {
comment = m_comment;
}
if (unit.empty()) {
unit = m_unit;
}
if (divisor != 0 && divisor != 1) {
return RESULT_ERR_INVALID_ARG; // cannot use divisor != 1 for value list field
}
if (!m_dataType->isNumeric()) {
return RESULT_ERR_INVALID_ARG;
}
if (!values.empty()) {
NumberDataType* num = reinterpret_cast<NumberDataType*>(m_dataType);
if (values.begin()->first < num->getMinValue() || values.rbegin()->first > num->getMaxValue()) {
return RESULT_ERR_INVALID_ARG; // cannot use divisor != 1 for value list field
}
} else {
values = m_values;
}
fields.push_back(new ValueListDataField(name, comment, unit, reinterpret_cast<NumberDataType*>(m_dataType),
partType, m_length, values));
return RESULT_OK;
}
void ValueListDataField::dump(ostream& output) {
output << setw(0) << dec; // initialize formatting
dumpString(output, m_name, false);
output << FIELD_SEPARATOR;
if (m_partType == pt_masterData) {
output << "m";
} else if (m_partType == pt_slaveData) {
output << "s";
}
output << FIELD_SEPARATOR;
if (!m_dataType->dump(output, m_length)) { // no divisor appended
for (map<unsigned int, string>::iterator it = m_values.begin(); it != m_values.end(); it++) {
if (it != m_values.begin()) {
output << VALUE_SEPARATOR;
}
output << static_cast<unsigned>(it->first) << "=" << it->second;
}
} // else: impossible since divisor is not allowed for ValueListDataField
dumpString(output, m_unit);
dumpString(output, m_comment);
}
result_t ValueListDataField::readSymbols(SymbolString& input,
const size_t offset,
ostringstream& output, OutputFormat outputFormat) {
unsigned int value = 0;
result_t result = m_dataType->readRawValue(input, offset, m_length, value);
if (result != RESULT_OK) {
return result;
}
map<unsigned int, string>::iterator it = m_values.find(value);
if (it == m_values.end() && value != m_dataType->getReplacement()) {
// fall back to raw value in input
output << setw(0) << dec << static_cast<unsigned>(value);
return RESULT_OK;
}
if (it == m_values.end()) {
if (outputFormat & OF_JSON) {
output << "null";
} else if (value == m_dataType->getReplacement()) {
output << NULL_VALUE;
}
} else if (outputFormat & OF_NUMERIC) {
output << setw(0) << dec << static_cast<unsigned>(value);
} else if (outputFormat & OF_JSON) {
output << '"' << it->second << '"';
} else {
output << it->second;
}
return RESULT_OK;
}
result_t ValueListDataField::writeSymbols(istringstream& input,
const size_t offset,
SymbolString& output, size_t* usedLength) {
NumberDataType* numType = reinterpret_cast<NumberDataType*>(m_dataType);
if (isIgnored()) {
// replacement value
return numType->writeRawValue(numType->getReplacement(), offset, m_length, output, usedLength);
}
const char* str = input.str().c_str();
for (map<unsigned int, string>::iterator it = m_values.begin(); it != m_values.end(); it++) {
if (it->second.compare(str) == 0) {
return numType->writeRawValue(it->first, offset, m_length, output, usedLength);
}
}
if (strcasecmp(str, NULL_VALUE) == 0) {
// replacement value
return numType->writeRawValue(numType->getReplacement(), offset, m_length, output, usedLength);
}
char* strEnd = NULL; // fall back to raw value in input
unsigned int value;
value = (unsigned int)strtoul(str, &strEnd, 10);
if (strEnd == NULL || strEnd == str || (*strEnd != 0 && *strEnd != '.')) {
return RESULT_ERR_INVALID_NUM; // invalid value
}
if (m_values.find(value) != m_values.end()) {
return numType->writeRawValue(value, offset, m_length, output, usedLength);
}
return RESULT_ERR_NOTFOUND; // value assignment not found
}
ConstantDataField* ConstantDataField::clone() {
return new ConstantDataField(*this);
}
result_t ConstantDataField::derive(string name, string comment,
string unit, const PartType partType,
int divisor, map<unsigned int, string> values,
vector<SingleDataField*>& fields) {
if (m_partType != pt_any && partType == pt_any) {
return RESULT_ERR_INVALID_PART; // cannot create a template from a concrete instance
}
if (name.empty()) {
name = m_name;
}
if (comment.empty()) {
comment = m_comment;
}
if (unit.empty()) {
unit = m_unit;
}
if (divisor != 0) {
return RESULT_ERR_INVALID_ARG; // cannot use other than current divisor for constant value field
}
if (!values.empty()) {
return RESULT_ERR_INVALID_ARG; // cannot use value list for constant value field
}
fields.push_back(new ConstantDataField(name, comment, unit, m_dataType, partType, m_length, m_value, m_verify));
return RESULT_OK;
}
void ConstantDataField::dump(ostream& output) {
output << setw(0) << dec; // initialize formatting
dumpString(output, m_name, false);
output << FIELD_SEPARATOR;
if (m_partType == pt_masterData) {
output << "m";
} else if (m_partType == pt_slaveData) {
output << "s";
}
output << FIELD_SEPARATOR;
if (!m_dataType->dump(output, m_length)) { // no divisor appended
output << (m_verify?"==":"=") << m_value;
} // else: impossible since divisor is not allowed for ConstantDataField
dumpString(output, m_unit);
dumpString(output, m_comment);
}
result_t ConstantDataField::readSymbols(SymbolString& input,
const size_t offset,
ostringstream& output, OutputFormat outputFormat) {
ostringstream coutput;
result_t result = SingleDataField::readSymbols(input, offset, coutput, 0);
if (result != RESULT_OK) {
return result;
}
if (m_verify) {
string value = coutput.str();
FileReader::trim(value);
if (value != m_value) {
return RESULT_ERR_OUT_OF_RANGE;
}
}
return RESULT_OK;
}
result_t ConstantDataField::writeSymbols(istringstream& input,
const size_t offset,
SymbolString& output, size_t* usedLength) {
istringstream cinput(m_value);
return SingleDataField::writeSymbols(cinput, offset, output, usedLength);
}
DataFieldSet* DataFieldSet::s_identFields = NULL;
DataFieldSet* DataFieldSet::getIdentFields() {
if (s_identFields == NULL) {
NumberDataType* uchDataType = reinterpret_cast<NumberDataType*>(DataTypeList::getInstance()->get("UCH"));
StringDataType* stringDataType = reinterpret_cast<StringDataType*>(DataTypeList::getInstance()->get("STR"));
NumberDataType* pinDataType = reinterpret_cast<NumberDataType*>(DataTypeList::getInstance()->get("PIN"));
map<unsigned int, string> manufacturers;
manufacturers[0x06] = "Dungs";
manufacturers[0x0f] = "FH Ostfalia";
manufacturers[0x10] = "TEM";
manufacturers[0x11] = "Lamberti";
manufacturers[0x14] = "CEB";
manufacturers[0x15] = "Landis-Staefa";
manufacturers[0x16] = "FERRO";
manufacturers[0x17] = "MONDIAL";
manufacturers[0x18] = "Wikon";
manufacturers[0x19] = "Wolf";
manufacturers[0x20] = "RAWE";
manufacturers[0x30] = "Satronic";
manufacturers[0x40] = "ENCON";
manufacturers[0x50] = "Kromschroeder";
manufacturers[0x60] = "Eberle";
manufacturers[0x65] = "EBV";
manufacturers[0x75] = "Graesslin";
manufacturers[0x85] = "ebm-papst";
manufacturers[0x95] = "SIG";
manufacturers[0xa5] = "Theben";
manufacturers[0xa7] = "Thermowatt";
manufacturers[0xb5] = "Vaillant";
manufacturers[0xc0] = "Toby";
manufacturers[0xc5] = "Weishaupt";
manufacturers[0xfd] = "ebusd.eu";
vector<SingleDataField*> fields;
fields.push_back(new ValueListDataField("MF", "", "", uchDataType, pt_slaveData, 1, manufacturers));
fields.push_back(new SingleDataField("ID", "", "", stringDataType, pt_slaveData, 5));
fields.push_back(new SingleDataField("SW", "", "", pinDataType, pt_slaveData, 2));
fields.push_back(new SingleDataField("HW", "", "", pinDataType, pt_slaveData, 2));
s_identFields = new DataFieldSet("ident", "", fields);
}
return s_identFields;
}
DataFieldSet::~DataFieldSet() {
while (!m_fields.empty()) {
delete m_fields.back();
m_fields.pop_back();
}
}
DataFieldSet* DataFieldSet::clone() {
vector<SingleDataField*> fields;
for (vector<SingleDataField*>::iterator it = m_fields.begin(); it < m_fields.end(); it++) {
fields.push_back((*it)->clone());
}
return new DataFieldSet(m_name, m_comment, fields);
}
size_t DataFieldSet::getLength(PartType partType, size_t maxLength) {
size_t length = 0;
bool previousFullByteOffset[] = { true, true, true, true };
for (vector<SingleDataField*>::iterator it = m_fields.begin(); it < m_fields.end(); it++) {
SingleDataField* field = *it;
if (field->getPartType() == partType) {
if (!previousFullByteOffset[partType] && !field->hasFullByteOffset(false)) {
length--;
}
size_t fieldLength = field->getLength(partType, maxLength);
if (fieldLength >= maxLength) {
maxLength = 0;
} else {
maxLength = maxLength - fieldLength;
}
length = length + fieldLength;
previousFullByteOffset[partType] = field->hasFullByteOffset(true);
}
}
return length;
}
string DataFieldSet::getName(ssize_t fieldIndex) {
if (fieldIndex < 0) {
return m_name;
}
if ((size_t)fieldIndex >= m_fields.size()) {
return "";
}
if (m_uniqueNames) {
return m_fields[fieldIndex]->getName();
}
ostringstream ostream;
ostream << static_cast<signed>(fieldIndex);
return ostream.str();
}
result_t DataFieldSet::derive(string name, string comment,
string unit, const PartType partType,
int divisor, map<unsigned int, string> values,
vector<SingleDataField*>& fields) {
if (!values.empty()) {
return RESULT_ERR_INVALID_ARG; // value list not allowed in set derive
}
bool first = true;
for (vector<SingleDataField*>::iterator it = m_fields.begin(); it < m_fields.end(); it++) {
result_t result = (*it)->derive("", first?comment:"", first?unit:"", partType, divisor, values, fields);
if (result != RESULT_OK) {
return result;
}
first = false;
}
return RESULT_OK;
}
bool DataFieldSet::hasField(const char* fieldName, bool numeric) {
for (vector<SingleDataField*>::iterator it = m_fields.begin(); it < m_fields.end(); it++) {
SingleDataField* field = *it;
if (field->hasField(fieldName, numeric) == 0) {
return true;
}
}
return false;
}
void DataFieldSet::dump(ostream& output) {
bool first = true;
for (vector<SingleDataField*>::iterator it = m_fields.begin(); it < m_fields.end(); it++) {
if (first) {
first = false;
} else {
output << FIELD_SEPARATOR;
}
(*it)->dump(output);
}
}
result_t DataFieldSet::read(SymbolString& data, size_t offset,
unsigned int& output, const char* fieldName, ssize_t fieldIndex) {
bool previousFullByteOffset = true, found = false, findFieldIndex = fieldName != NULL && fieldIndex >= 0;
PartType partType = data.isMaster() ? pt_masterData : pt_slaveData;
for (vector<SingleDataField*>::iterator it = m_fields.begin(); it < m_fields.end(); it++) {
SingleDataField* field = *it;
if (field->getPartType() != partType) {
continue;
}
if (!previousFullByteOffset && !field->hasFullByteOffset(false)) {
offset--;
}
result_t result = field->read(data, offset, output, fieldName, fieldIndex);
if (result < RESULT_OK) {
return result;
}
offset += field->getLength(partType, data.getDataSize()-offset);
previousFullByteOffset = field->hasFullByteOffset(true);
if (result != RESULT_EMPTY) {
found = true;
}
if (findFieldIndex && fieldName == field->getName()) {
if (fieldIndex == 0) {
if (!found) {
return RESULT_ERR_NOTFOUND;
}
break;
}
fieldIndex--;
}
}
if (!found) {
return RESULT_EMPTY;
}
return RESULT_OK;
}
result_t DataFieldSet::read(SymbolString& data, size_t offset,
ostringstream& output, OutputFormat outputFormat, ssize_t outputIndex,
bool leadingSeparator, const char* fieldName, ssize_t fieldIndex) {
bool previousFullByteOffset = true, found = false, findFieldIndex = fieldName != NULL && fieldIndex >= 0;
if (outputIndex < 0 && (!m_uniqueNames || ((outputFormat & OF_JSON) && !(outputFormat & OF_NAMES)))) {
outputIndex = 0;
}
PartType partType = data.isMaster() ? pt_masterData : pt_slaveData;
for (vector<SingleDataField*>::iterator it = m_fields.begin(); it < m_fields.end(); it++) {
SingleDataField* field = *it;
if (field->getPartType() != partType) {
if (outputIndex >= 0 && !field->isIgnored()) {
outputIndex++;
}
continue;
}
if (!previousFullByteOffset && !field->hasFullByteOffset(false)) {
offset--;
}
result_t result = field->read(data, offset, output, outputFormat, outputIndex, leadingSeparator,
fieldName, fieldIndex);
if (result < RESULT_OK) {
return result;
}
offset += field->getLength(partType, data.getDataSize()-offset);
previousFullByteOffset = field->hasFullByteOffset(true);
if (result != RESULT_EMPTY) {
found = true;
leadingSeparator = true;
}
if (findFieldIndex && fieldName == field->getName()) {
if (fieldIndex == 0) {
if (!found) {
return RESULT_ERR_NOTFOUND;
}
break;
}
fieldIndex--;
}
if (outputIndex >= 0 && !field->isIgnored()) {
outputIndex++;
}
}
if (!found) {
return RESULT_EMPTY;
}
if (!(outputFormat & OF_SHORT) && (outputFormat & OF_COMMENTS) && m_comment.length() > 0) {
if (outputFormat & OF_JSON) {
output << ",\"comment\": \"" << m_comment << '"';
} else {
output << " [" << m_comment << "]";
}
}
return RESULT_OK;
}
result_t DataFieldSet::write(istringstream& input, SymbolString& data,
size_t offset, char separator, size_t* length) {
string token;
PartType partType = data.isMaster() ? pt_masterData : pt_slaveData;
bool previousFullByteOffset = true;
size_t baseOffset = offset;
for (vector<SingleDataField*>::iterator it = m_fields.begin(); it < m_fields.end(); it++) {
SingleDataField* field = *it;
if (field->getPartType() != partType) {
continue;
}
if (!previousFullByteOffset && !field->hasFullByteOffset(false)) {
offset--;
}
result_t result;
size_t fieldLength;
if (m_fields.size() > 1) {
if (field->isIgnored()) {
token.clear();
} else if (!getline(input, token, separator)) {
token.clear();
}
istringstream single(token);
result = (*it)->write(single, data, offset, separator, &fieldLength);
} else {
result = (*it)->write(input, data, offset, separator, &fieldLength);
}
if (result != RESULT_OK) {
return result;
}
offset += fieldLength;
previousFullByteOffset = field->hasFullByteOffset(true);
}
if (length != NULL) {
*length = offset-baseOffset;
}
return RESULT_OK;
}
DataFieldTemplates::DataFieldTemplates(DataFieldTemplates& other)
: MappedFileReader::MappedFileReader(false) {
for (map<string, DataField*>::iterator it = other.m_fieldsByName.begin(); it != other.m_fieldsByName.end(); it++) {
m_fieldsByName[it->first] = it->second->clone();
}
}
void DataFieldTemplates::clear() {
for (map<string, DataField*>::iterator it = m_fieldsByName.begin(); it != m_fieldsByName.end(); it++) {
delete it->second;
it->second = NULL;
}
m_fieldsByName.clear();
}
result_t DataFieldTemplates::add(DataField* field, string name, bool replace) {
if (name.length() == 0) {
name = field->getName();
}
map<string, DataField*>::iterator it = m_fieldsByName.find(name);
if (it != m_fieldsByName.end()) {
if (!replace) {
return RESULT_ERR_DUPLICATE_NAME; // duplicate key
}
delete it->second;
it->second = field;
return RESULT_OK;
}
m_fieldsByName[name] = field;
return RESULT_OK;
}
result_t DataFieldTemplates::getFieldMap(vector<string>& row, string& errorDescription) {
// name[:usename],basetype[:len]|template[:usename][,[divisor|values][,[unit][,[comment]]]]
if (row.empty()) {
// default map does not include separate field name
row.push_back("name");
for (size_t cnt = 0; cnt < 2; cnt++) {
bool first = true;
for (size_t fieldId = DATAFIELD_RANGE_MIN; fieldId <= DATAFIELD_RANGE_MAX; fieldId++) {
if (cnt == 0 && fieldId == DATAFIELD_NAME) {
continue;
}
if (fieldId == DATAFIELD_PART) { // not included in default map
continue;
}
// subsequent fields start with field name
if (first) {
first = false;
row.push_back("*"+getDataFieldName(fieldId));
} else {
row.push_back(getDataFieldName(fieldId));
}
}
}
return RESULT_OK;
}
bool inDataFields = false;
map<string, string> seen;
for (auto &name : row) {
tolower(name);
size_t fieldId;
if (inDataFields) {
fieldId = getDataFieldId(name);
if (fieldId == UINT_MAX) {
errorDescription = "unknown field " + name;
return RESULT_ERR_INVALID_ARG;
}
if (seen.find(name) != seen.end()) {
if (seen.find("type") == seen.end()) {
return RESULT_ERR_EOF; // require at least type
}
seen.clear();
name = "*" + getDataFieldName(fieldId); // data field repetition
} else {
name = getDataFieldName(fieldId);
}
} else if (name == "name") {
if (seen.find(name) != seen.end()) {
errorDescription = "duplicate field " + name;
return RESULT_ERR_INVALID_ARG;
}
name = "name";
} else {
fieldId = getDataFieldId(name);
if (fieldId == UINT_MAX) {
errorDescription = "unknown field " + name;
return RESULT_ERR_INVALID_ARG;
}
if (seen.find("name") == seen.end()) {
return RESULT_ERR_EOF; // require at least name
}
inDataFields = true;
seen.clear();
name = "*" + getDataFieldName(fieldId);
}
seen[name] = name;
}
if (!inDataFields) {
return RESULT_ERR_EOF; // require at least one field
}
if (seen.find("name") == seen.end() || seen.find("type") == seen.end()) {
return RESULT_ERR_EOF; // require at least name and type
}
return RESULT_OK;
}
result_t DataFieldTemplates::addFromFile(map<string, string>& row, vector< map<string, string> >& subRows,
string& errorDescription, const string filename, unsigned int lineNo) {
string name = row["name"]; // required
string firstFieldName;
size_t colon = name.find(':');
if (colon == string::npos) {
firstFieldName = name;
} else {
firstFieldName = name.substr(colon+1);
name = name.substr(0, colon);
}
DataField* field = NULL;
if (!subRows.empty() && subRows[0].find("name") == subRows[0].end()) {
subRows[0]["name"] = firstFieldName;
}
result_t result = DataField::create(subRows, errorDescription, this, field, false, true, false);
if (result != RESULT_OK) {
return result;
}
result = add(field, name, true);
if (result == RESULT_ERR_DUPLICATE_NAME) {
errorDescription = name;
}
if (result != RESULT_OK) {
delete field;
}
return result;
}
DataField* DataFieldTemplates::get(const string name) {
map<string, DataField*>::const_iterator ref = m_fieldsByName.find(name);
if (ref == m_fieldsByName.end()) {
return NULL;
}
return ref->second;
}
} // namespace ebusd
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