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295 lines (228 loc) · 11.3 KB
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// matth-x/MicroOcpp
// Copyright Matthias Akstaller 2019 - 2024
// MIT License
/*
* Implementation of the UCs B05 - B06
*/
#include <MicroOcpp/Version.h>
#if MO_ENABLE_V201
#include <MicroOcpp/Model/Variables/VariableContainer.h>
#include <MicroOcpp/Core/FilesystemUtils.h>
#include <string.h>
#include <MicroOcpp/Debug.h>
using namespace MicroOcpp;
VariableContainer::~VariableContainer() {
}
bool VariableContainer::commit() {
return true;
}
VariableContainerNonOwning::VariableContainerNonOwning() :
VariableContainer(), MemoryManaged("v201.Variables.VariableContainerNonOwning"), variables(makeVector<Variable*>(getMemoryTag())) {
}
size_t VariableContainerNonOwning::size() {
return variables.size();
}
Variable *VariableContainerNonOwning::getVariable(size_t i) {
return variables[i];
}
Variable *VariableContainerNonOwning::getVariable(const ComponentId& component, const char *variableName) {
for (size_t i = 0; i < variables.size(); i++) {
auto& var = variables[i];
if (!strcmp(var->getName(), variableName) &&
var->getComponentId().equals(component)) {
return var;
}
}
return nullptr;
}
bool VariableContainerNonOwning::add(Variable *variable) {
variables.push_back(variable);
return true;
}
bool VariableContainerOwning::checkWriteCountUpdated() {
decltype(trackWriteCount) writeCount = 0;
for (size_t i = 0; i < variables.size(); i++) {
writeCount += variables[i]->getWriteCount();
}
bool updated = writeCount != trackWriteCount;
trackWriteCount = writeCount;
return updated;
}
VariableContainerOwning::VariableContainerOwning() :
VariableContainer(), MemoryManaged("v201.Variables.VariableContainerOwning"), variables(makeVector<std::unique_ptr<Variable>>(getMemoryTag())) {
}
VariableContainerOwning::~VariableContainerOwning() {
MO_FREE(filename);
filename = nullptr;
}
size_t VariableContainerOwning::size() {
return variables.size();
}
Variable *VariableContainerOwning::getVariable(size_t i) {
return variables[i].get();
}
Variable *VariableContainerOwning::getVariable(const ComponentId& component, const char *variableName) {
for (size_t i = 0; i < variables.size(); i++) {
auto& var = variables[i];
if (!strcmp(var->getName(), variableName) &&
var->getComponentId().equals(component)) {
return var.get();
}
}
return nullptr;
}
bool VariableContainerOwning::add(std::unique_ptr<Variable> variable) {
variables.push_back(std::move(variable));
return true;
}
bool VariableContainerOwning::enablePersistency(std::shared_ptr<FilesystemAdapter> filesystem, const char *filename) {
this->filesystem = filesystem;
MO_FREE(this->filename);
this->filename = nullptr;
size_t fnsize = strlen(filename) + 1;
this->filename = static_cast<char*>(MO_MALLOC(getMemoryTag(), fnsize));
if (!this->filename) {
MO_DBG_ERR("OOM");
return false;
}
snprintf(this->filename, fnsize, "%s", filename);
return true;
}
bool VariableContainerOwning::load() {
if (loaded) {
return true;
}
if (!filesystem || !filename) {
return true; //persistency disabled - nothing to do
}
size_t file_size = 0;
if (filesystem->stat(filename, &file_size) != 0 // file does not exist
|| file_size == 0) { // file exists, but empty
MO_DBG_DEBUG("Populate FS: create variables file");
return commit();
}
auto doc = FilesystemUtils::loadJson(filesystem, filename, getMemoryTag());
if (!doc) {
MO_DBG_ERR("failed to load %s", filename);
return false;
}
JsonArray variablesJson = (*doc)["variables"];
for (JsonObject stored : variablesJson) {
const char *component = stored["component"] | (const char*)nullptr;
int evseId = stored["evseId"] | -1;
const char *name = stored["name"] | (const char*)nullptr;
if (!component || !name) {
MO_DBG_ERR("corrupt entry: %s", filename);
continue;
}
auto variablePtr = getVariable(ComponentId(component, EvseId(evseId)), name);
if (!variablePtr) {
MO_DBG_ERR("loaded variable does not exist: %s, %s, %s", filename, component, name);
continue;
}
auto& variable = *variablePtr;
switch (variable.getInternalDataType()) {
case Variable::InternalDataType::Int:
if (variable.hasAttribute(Variable::AttributeType::Actual)) variable.setInt(stored["valActual"] | 0, Variable::AttributeType::Actual);
if (variable.hasAttribute(Variable::AttributeType::Target)) variable.setInt(stored["valTarget"] | 0, Variable::AttributeType::Target);
if (variable.hasAttribute(Variable::AttributeType::MinSet)) variable.setInt(stored["valMinSet"] | 0, Variable::AttributeType::MinSet);
if (variable.hasAttribute(Variable::AttributeType::MaxSet)) variable.setInt(stored["valMaxSet"] | 0, Variable::AttributeType::MaxSet);
break;
case Variable::InternalDataType::Bool:
if (variable.hasAttribute(Variable::AttributeType::Actual)) variable.setBool(stored["valActual"] | false, Variable::AttributeType::Actual);
if (variable.hasAttribute(Variable::AttributeType::Target)) variable.setBool(stored["valTarget"] | false, Variable::AttributeType::Target);
if (variable.hasAttribute(Variable::AttributeType::MinSet)) variable.setBool(stored["valMinSet"] | false, Variable::AttributeType::MinSet);
if (variable.hasAttribute(Variable::AttributeType::MaxSet)) variable.setBool(stored["valMaxSet"] | false, Variable::AttributeType::MaxSet);
break;
case Variable::InternalDataType::String:
bool success = true;
if (variable.hasAttribute(Variable::AttributeType::Actual)) success &= variable.setString(stored["valActual"] | "", Variable::AttributeType::Actual);
if (variable.hasAttribute(Variable::AttributeType::Target)) success &= variable.setString(stored["valTarget"] | "", Variable::AttributeType::Target);
if (variable.hasAttribute(Variable::AttributeType::MinSet)) success &= variable.setString(stored["valMinSet"] | "", Variable::AttributeType::MinSet);
if (variable.hasAttribute(Variable::AttributeType::MaxSet)) success &= variable.setString(stored["valMaxSet"] | "", Variable::AttributeType::MaxSet);
if (!success) {
MO_DBG_ERR("value error: %s, %s, %s", filename, component, name);
continue;
}
break;
}
}
checkWriteCountUpdated(); // update trackWriteCount after load is completed
MO_DBG_DEBUG("Initialization finished");
loaded = true;
return true;
}
bool VariableContainerOwning::commit() {
if (!filesystem || !filename) {
//persistency disabled - nothing to do
return true;
}
if (!checkWriteCountUpdated()) {
return true; //nothing to be done
}
size_t jsonCapacity = JSON_OBJECT_SIZE(1) + JSON_ARRAY_SIZE(0);
size_t variableCapacity = 0;
for (size_t i = 0; i < variables.size(); i++) {
auto& variable = *variables[i];
if (!variable.isPersistent()) {
continue;
}
size_t addedJsonCapacity = JSON_ARRAY_SIZE(variableCapacity + 1) - JSON_ARRAY_SIZE(variableCapacity);
size_t storedEntities = 2; //component name, variable name will always be stored
storedEntities += variable.getComponentId().evse.id >= 0 ? 1 : 0;
storedEntities += variable.hasAttribute(Variable::AttributeType::Actual) ? 1 : 0;
storedEntities += variable.hasAttribute(Variable::AttributeType::Target) ? 1 : 0;
storedEntities += variable.hasAttribute(Variable::AttributeType::MinSet) ? 1 : 0;
storedEntities += variable.hasAttribute(Variable::AttributeType::MaxSet) ? 1 : 0;
addedJsonCapacity += JSON_OBJECT_SIZE(storedEntities);
if (jsonCapacity + addedJsonCapacity <= MO_MAX_JSON_CAPACITY) {
jsonCapacity += addedJsonCapacity;
variableCapacity++;
} else {
MO_DBG_ERR("configs JSON exceeds maximum capacity (%s, %zu entries). Crop configs file (by FCFS)", filename, variables.size());
break;
}
}
auto doc = initJsonDoc(getMemoryTag(), jsonCapacity);
JsonArray variablesJson = doc.createNestedArray("variables");
for (size_t i = 0; i < variableCapacity; i++) {
auto& variable = *variables[i];
if (!variable.isPersistent()) {
continue;
}
auto stored = variablesJson.createNestedObject();
stored["component"] = variable.getComponentId().name;
if (variable.getComponentId().evse.id >= 0) {
stored["evseId"] = variable.getComponentId().evse.id;
}
stored["name"] = variable.getName();
switch (variable.getInternalDataType()) {
case Variable::InternalDataType::Int:
if (variable.hasAttribute(Variable::AttributeType::Actual)) stored["valActual"] = variable.getInt(Variable::AttributeType::Actual);
if (variable.hasAttribute(Variable::AttributeType::Target)) stored["valTarget"] = variable.getInt(Variable::AttributeType::Target);
if (variable.hasAttribute(Variable::AttributeType::MinSet)) stored["valMinSet"] = variable.getInt(Variable::AttributeType::MinSet);
if (variable.hasAttribute(Variable::AttributeType::MaxSet)) stored["valMaxSet"] = variable.getInt(Variable::AttributeType::MaxSet);
break;
case Variable::InternalDataType::Bool:
if (variable.hasAttribute(Variable::AttributeType::Actual)) stored["valActual"] = variable.getBool(Variable::AttributeType::Actual);
if (variable.hasAttribute(Variable::AttributeType::Target)) stored["valTarget"] = variable.getBool(Variable::AttributeType::Target);
if (variable.hasAttribute(Variable::AttributeType::MinSet)) stored["valMinSet"] = variable.getBool(Variable::AttributeType::MinSet);
if (variable.hasAttribute(Variable::AttributeType::MaxSet)) stored["valMaxSet"] = variable.getBool(Variable::AttributeType::MaxSet);
break;
case Variable::InternalDataType::String:
if (variable.hasAttribute(Variable::AttributeType::Actual)) stored["valActual"] = variable.getString(Variable::AttributeType::Actual);
if (variable.hasAttribute(Variable::AttributeType::Target)) stored["valTarget"] = variable.getString(Variable::AttributeType::Target);
if (variable.hasAttribute(Variable::AttributeType::MinSet)) stored["valMinSet"] = variable.getString(Variable::AttributeType::MinSet);
if (variable.hasAttribute(Variable::AttributeType::MaxSet)) stored["valMaxSet"] = variable.getString(Variable::AttributeType::MaxSet);
break;
}
}
bool success = FilesystemUtils::storeJson(filesystem, filename, doc);
if (success) {
MO_DBG_DEBUG("Saving variables finished");
} else {
MO_DBG_ERR("could not save variables file: %s", filename);
}
return success;
}
#endif // MO_ENABLE_V201