private static void BuildPolicy(IExceptionPolicyBuilder builder, PolicyConfiguration config, IDictionary <string, IExceptionFilter> filters)
{
foreach (var it in config.PreHandlers)
{
var handlerConfig = GetHandlerConfiguration(it.HandlerType);
var filterableConfig = it as FilterableHandlerConfiguration;
if (null == filterableConfig)
{
builder.Pre(handlerBuilder => handlerConfig.Use(handlerBuilder, _ => true, it.Arguments.ToDictionary(item => item.Name, item => item.Value)));
}
else
{
builder.Pre(handlerBuilder => handlerConfig.Use(handlerBuilder, context => filters[filterableConfig.Filter].Match(context), it.Arguments.ToDictionary(item => item.Name, item => item.Value)));
}
}
foreach (var it in config.PostHandlers)
{
var handlerConfig = GetHandlerConfiguration(it.HandlerType);
var filterableConfig = it as FilterableHandlerConfiguration;
if (null == filterableConfig)
{
builder.Post(handlerBuilder => handlerConfig.Use(handlerBuilder, _ => true, it.Arguments.ToDictionary(item => item.Name, item => item.Value)));
}
else
{
builder.Post(handlerBuilder => handlerConfig.Use(handlerBuilder, context => filters[filterableConfig.Filter].Match(context), it.Arguments.ToDictionary(item => item.Name, item => item.Value)));
}
}
foreach (var entry in config.PolicyEntries)
{
builder.For(entry.ExceptionType, entry.PostHandlingAction, handlerBuilder => {
foreach (var it in entry.Handlers)
{
var handlerConfig = GetHandlerConfiguration(it.HandlerType);
var filterableConfig = it as FilterableHandlerConfiguration;
if (null == filterableConfig)
{
handlerConfig.Use(handlerBuilder, _ => true, it.Arguments.ToDictionary(item => item.Name, item => item.Value));
}
else
{
handlerConfig.Use(handlerBuilder, context => filters[filterableConfig.Filter].Match(context), it.Arguments.ToDictionary(item => item.Name, item => item.Value));
}
}
});
}
}
/// <summary>
/// Register common exception handler chain which is invoked before the ones registered to exception type.
/// </summary>
/// <param name="builder">The <see cref="IExceptionPolicyBuilder"/> to which the pre-hanlder-chain is registered.</param>
/// <param name="configure">An <see cref="Action{IExceptionHandlerBuilder}"/> to build the exception handler chain.</param>
/// <returns>The current <see cref="IExceptionPolicyBuilder"/>.</returns>
public static IExceptionPolicyBuilder Pre(this IExceptionPolicyBuilder builder, Action <IExceptionHandlerBuilder> configure)
{
Guard.ArgumentNotNull(builder, nameof(builder));
return(builder.Pre(configure, _ => true));
}