internal DataFilterConfiguration(DataFilterConfiguration filterToClone)
: this(filterToClone.FilterName, filterToClone.IsEnabled)
{
foreach (var filterParameter in filterToClone.FilterParameters)
{
FilterParameters[filterParameter.Key] = filterParameter.Value;
}
}
/// <inheritdoc/>
public IDisposable SetFilterParameter(string filterName, string parameterName, object value)
{
var filterIndex = GetFilterIndex(filterName);
var newfilter = new DataFilterConfiguration(_filters[filterIndex]);
//Store old value
object oldValue = null;
var hasOldValue = newfilter.FilterParameters.ContainsKey(filterName);
if (hasOldValue)
{
oldValue = newfilter.FilterParameters[filterName];
}
newfilter.FilterParameters[parameterName] = value;
_filters[filterIndex] = newfilter;
ApplyFilterParameterValue(filterName, parameterName, value);
return new DisposeAction(() =>
{
//Restore old value
if (hasOldValue)
{
SetFilterParameter(filterName, parameterName, oldValue);
}
});
}
/// <summary>
/// todo 还需近一步了解该方法的用途
/// </summary>
/// <param name="filterOverrides"></param>
/// <param name="filterName"></param>
/// <param name="isEnabled"></param>
private void ChangeFilterIsEnabledIfNotOverrided(List<DataFilterConfiguration> filterOverrides, string filterName, bool isEnabled)
{
if (filterOverrides.Any(f => f.FilterName == filterName))
{
return;
}
var index = _filters.FindIndex(f => f.FilterName == filterName);
if (index < 0)
{
return;
}
if (_filters[index].IsEnabled == isEnabled)
{
return;
}
_filters[index] = new DataFilterConfiguration(filterName, isEnabled);
}
/// <inheritdoc/>
public IDisposable EnableFilter(params string[] filterNames)
{
//TODO: Check if filters exists?
var enabledFilters = new List<string>();
foreach (var filterName in filterNames)
{
var filterIndex = GetFilterIndex(filterName);
if (!_filters[filterIndex].IsEnabled)
{
enabledFilters.Add(filterName);
_filters[filterIndex] = new DataFilterConfiguration(filterName, true);
}
}
enabledFilters.ForEach(ApplyEnableFilter);
return new DisposeAction(() => DisableFilter(enabledFilters.ToArray()));
}