/// <summary>
/// Generate the Channels section of an AsyncApi schema.
/// </summary>
private Channels GenerateChannels(IEnumerable <TypeInfo> asyncApiTypes, ISchemaRepository schemaRepository)
{
var channels = new Channels();
var methodsWithChannelAttribute = asyncApiTypes
.SelectMany(type => type.DeclaredMethods)
.Select(method => new
{
Channel = method.GetCustomAttribute <ChannelAttribute>(),
Method = method,
})
.Where(mc => mc.Channel != null);
foreach (var mc in methodsWithChannelAttribute)
{
var channelItem = new ChannelItem
{
Description = mc.Channel.Description,
Parameters = mc.Channel.Parameters,
Publish = GenerateOperation(mc.Method, schemaRepository, OperationType.Publish),
Subscribe = GenerateOperation(mc.Method, schemaRepository, OperationType.Subscribe),
};
channels.Add(mc.Channel.Name, channelItem);
var context = new ChannelItemFilterContext(mc.Method, schemaRepository, mc.Channel);
foreach (var filter in _options.ChannelItemFilters)
{
filter.Apply(channelItem, context);
}
}
return(channels);
}
/// <summary>
/// Generate the Channels section of the AsyncApi schema from the <see cref="ChannelAttribute"/> on classes.
/// </summary>
private Channels GenerateChannelsFromClasses(IEnumerable <TypeInfo> asyncApiTypes, ISchemaRepository schemaRepository)
{
var channels = new Channels();
var classesWithChannelAttribute = asyncApiTypes
.Select(type => new
{
Channel = type.GetCustomAttribute <ChannelAttribute>(),
Type = type,
})
.Where(cc => cc.Channel != null);
foreach (var cc in classesWithChannelAttribute)
{
var channelItem = new ChannelItem
{
Description = cc.Channel.Description,
Parameters = cc.Channel.Parameters,
Publish = GenerateOperationFromClass(cc.Type, schemaRepository, OperationType.Publish),
Subscribe = GenerateOperationFromClass(cc.Type, schemaRepository, OperationType.Subscribe),
};
channels.Add(cc.Channel.Name, channelItem);
var context = new ChannelItemFilterContext(cc.Type, schemaRepository, cc.Channel);
foreach (var filter in _options.ChannelItemFilters)
{
filter.Apply(channelItem, context);
}
}
return(channels);
}
/// <summary>
/// Generate the Channels section of the AsyncApi schema from the
/// <see cref="ChannelAttribute"/> on methods.
/// </summary>
private static IDictionary <string, ChannelItem> GenerateChannelsFromMethods(IEnumerable <TypeInfo> asyncApiTypes, AsyncApiSchemaResolver schemaResolver, AsyncApiOptions options, JsonSchemaGenerator jsonSchemaGenerator, IServiceProvider serviceProvider)
{
var channels = new Dictionary <string, ChannelItem>();
var methodsWithChannelAttribute = asyncApiTypes
.SelectMany(type => type.DeclaredMethods)
.Select(method => new
{
Channel = method.GetCustomAttribute <ChannelAttribute>(),
Method = method,
})
.Where(mc => mc.Channel != null);
foreach (var mc in methodsWithChannelAttribute)
{
var channelItem = new ChannelItem
{
Description = mc.Channel.Description,
Parameters = GetChannelParametersFromAttributes(mc.Method, schemaResolver, jsonSchemaGenerator),
Publish = GenerateOperationFromMethod(mc.Method, schemaResolver, OperationType.Publish, options, jsonSchemaGenerator, serviceProvider),
Subscribe = GenerateOperationFromMethod(mc.Method, schemaResolver, OperationType.Subscribe, options, jsonSchemaGenerator, serviceProvider),
Bindings = mc.Channel.BindingsRef != null ? new ChannelBindingsReference(mc.Channel.BindingsRef) : null,
Servers = mc.Channel.Servers?.ToList(),
};
channels.Add(mc.Channel.Name, channelItem);
var context = new ChannelItemFilterContext(mc.Method, schemaResolver, jsonSchemaGenerator, mc.Channel);
foreach (var filterType in options.ChannelItemFilters)
{
var filter = (IChannelItemFilter)serviceProvider.GetRequiredService(filterType);
filter.Apply(channelItem, context);
}
}
return(channels);
}
/// <summary>
/// Generate the Channels section of the AsyncApi schema from the
/// <see cref="ChannelAttribute"/> on classes.
/// </summary>
private static IDictionary <string, ChannelItem> GenerateChannelsFromClasses(IEnumerable <TypeInfo> asyncApiTypes, AsyncApiSchemaResolver schemaResolver, AsyncApiOptions options, JsonSchemaGenerator jsonSchemaGenerator, IServiceProvider serviceProvider)
{
var channels = new Dictionary <string, ChannelItem>();
var classesWithChannelAttribute = asyncApiTypes
.Select(type => new
{
Channel = type.GetCustomAttribute <ChannelAttribute>(),
Type = type,
})
.Where(cc => cc.Channel != null);
foreach (var cc in classesWithChannelAttribute)
{
var channelItem = new ChannelItem
{
Description = cc.Channel.Description,
Parameters = GetChannelParametersFromAttributes(cc.Type, schemaResolver, jsonSchemaGenerator),
Publish = GenerateOperationFromClass(cc.Type, schemaResolver, OperationType.Publish, jsonSchemaGenerator),
Subscribe = GenerateOperationFromClass(cc.Type, schemaResolver, OperationType.Subscribe, jsonSchemaGenerator),
Bindings = cc.Channel.BindingsRef != null ? new ChannelBindingsReference(cc.Channel.BindingsRef) : null,
Servers = cc.Channel.Servers?.ToList(),
};
channels.AddOrAppend(cc.Channel.Name, channelItem);
var context = new ChannelItemFilterContext(cc.Type, schemaResolver, jsonSchemaGenerator, cc.Channel);
foreach (var filterType in options.ChannelItemFilters)
{
var filter = (IChannelItemFilter)serviceProvider.GetRequiredService(filterType);
filter.Apply(channelItem, context);
}
}
return(channels);
}
