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/*
* Copyright 2017 Samsung Electronics Co., Ltd
*
* Licensed under the Flora License, Version 1.1 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://floralicense.org/license/
*
* 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 "Model/DataControlProvider.h"
#include "Model/DataControlConsumer.h"
using namespace Model;
using namespace std::placeholders;
DataControlProvider::DataControlProvider(DataControlConsumer &consumer)
: m_Consumer(consumer), m_ChangesPending(0)
{
}
DataControlProvider::~DataControlProvider()
{
m_Consumer.onDataItemChanged() -= this;
}
void DataControlProvider::startInit()
{
m_Consumer.getDataItems(std::bind(&DataControlProvider::finishInit, this, _1));
m_Consumer.onDataItemChanged() += { std::bind(&DataControlProvider::onDataItemChanged, this, _1, _2), this };
}
void DataControlProvider::startUpdate()
{
for (auto &&change : m_Changes) {
if (change.type == DATA_CONTROL_DATA_CHANGE_SQL_DELETE) {
applyChange(change, nullptr);
continue;
}
++m_ChangesPending;
m_Consumer.getDataItem(change.id, [this, change](DataList dataList) {
applyChange(change, dataList.front());
if (!--m_ChangesPending) {
finishUpdate();
}
});
}
m_Changes.clear();
if (!m_ChangesPending) {
finishUpdate();
}
}
void DataControlProvider::applyChange(ChangeInfo change, ::Model::DataItem *newItem)
{
switch (change.type) {
case DATA_CONTROL_DATA_CHANGE_SQL_INSERT:
insertDataItem(newItem);
break;
case DATA_CONTROL_DATA_CHANGE_SQL_UPDATE:
if (auto item = findDataItem(change.id)) {
item->update(newItem);
}
delete newItem;
break;
case DATA_CONTROL_DATA_CHANGE_SQL_DELETE:
if (auto item = findDataItem(change.id)) {
deleteDataItem(*item);
}
break;
default:
break;
}
}
void DataControlProvider::onDataItemChanged(int id, data_control_data_change_type_e type)
{
m_Changes.push_back({ id, type });
update();
}
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