public virtual void ProcessMessage(Source source, Message message)
{
// Apply transformers
foreach (var transformer in Transformers)
{
transformer.ProcessMessage(source, message);
}
// Route to target
Channel.HostService.PublishMessage(this, message);
}
public bool AcceptMessage(Source source, Message message)
{
// Apply filters
bool accept = true;
foreach (var filter in Filters)
{
accept &= filter.Evaluate(source, message);
if (!accept) return false;
}
return true;
}
public Application CreateApplication()
{
Application application = new Application { Name = Name, Description = Description };
foreach (var portConfig in Ports)
{
Port port = new Port();
IEndpoint endpoint = CreateInstanace(portConfig.Endpoint.TypeInfo) as IEndpoint;
port.Endpoint = endpoint;
foreach (var encoderConfig in portConfig.Encoders)
{
var encoder = CreateInstanace(encoderConfig.TypeInfo) as IPipelineComponent;
port.Encoders.Add(encoder);
}
foreach (var assemblerConfig in portConfig.Assemblers)
{
var encoder = CreateInstanace(assemblerConfig.TypeInfo) as IPipelineComponent;
port.Assembers.Add(encoder);
}
application.Ports.Add(port);
}
foreach (var channelConfig in Channels)
{
Channel channel = new Channel();
application.Channels.Add(channel);
Source source = new Source();
channel.Source = source;
LoadFilters(channelConfig.Source.Filters, source.Filters);
LoadTransformers(channelConfig.Source.Transformers, source.Transformers);
foreach (var destinationConfiguration in channelConfig.Destinations)
{
var destination = new Destination();
channel.Destinations.Add(destination);
LoadFilters(destinationConfiguration.Filters, destination.Filters);
LoadTransformers(destinationConfiguration.Transformers, destination.Transformers);
}
}
return application;
}
public void BasicFileEndpointTest()
{
// A new application
Application application = new Application();
// Add endpoints
string filePath = "test-file.txt";
FileReaderEndpoint fileReaderEndpoint = new FileReaderEndpoint(filePath, 100, Encoding.Default);
application.Ports.Add(new Port { Endpoint = fileReaderEndpoint });
string fileOutPath = "test-file-out.txt";
FileWriterEndpoint fileWriterEndpoint = new FileWriterEndpoint(fileOutPath, true, Encoding.Default, true);
application.Ports.Add(new Port { Endpoint = fileWriterEndpoint });
// Add a channel
Channel channel = new Channel();
application.Channels.Add(channel);
// Source setup
Source source = new Source();
channel.Source = source;
Destination destination = new Destination();
destination.Target = fileWriterEndpoint;
channel.Destinations.Add(destination);
// Host
ApplicationHost applicationHost = new ApplicationHost();
applicationHost.Deploy(application);
// Start the processing
applicationHost.StartProcessing();
fileReaderEndpoint.WaitForMessage();
fileReaderEndpoint.WaitForMessage();
// Check that endpoint wrote the message
using (StreamReader reader = new StreamReader(fileOutPath))
{
string text = reader.ReadToEnd();
Assert.AreEqual("Hello world!\nHello world!", text.Trim().Replace("\r\n", "\n"));
reader.Close();
}
}
public void BasicRoutingFilteringTransformationTest()
{
// A new application
Application application = new Application();
// Ports
Port receivePort = new Port();
IEndpoint endpoint = new EndpointMock();
receivePort.Endpoint = endpoint;
{
IEncoder encoder = new PipelineComponentMock();
receivePort.Encoders.Add(encoder);
IDisassembler disassembler = new PipelineComponentMock();
receivePort.Assembers.Add(disassembler);
}
application.Ports.Add(receivePort);
Port sendPort = new Port();
IEndpoint sendEndpoint = new EndpointMock();
sendPort.Endpoint = sendEndpoint;
{
IEncoder encoder = new PipelineComponentMock();
sendPort.Encoders.Add(encoder);
IDisassembler disassembler = new PipelineComponentMock();
sendPort.Assembers.Add(disassembler);
}
application.Ports.Add(sendPort);
// Add a channel
Channel channel = new Channel();
application.Channels.Add(channel);
// Source setup
Source source = new Source();
channel.Source = source;
source.Filters.Add(new DelegateFilter((src, message) => true));
source.Filters.Add(new JavaScriptFilter { Script = "true" });
source.Transformers.Add(new DelegateTransformer());
source.Transformers.Add(new DelegateTransformer((src, message) => { }));
source.Transformers.Add(new DelegateTransformer((src, message) => message.SetValueFrom(message.GetString())));
{
Destination destination = new Destination();
destination.Target = sendEndpoint;
destination.Filters.Add(new DelegateFilter((src, message) => true));
destination.Filters.Add(new JavaScriptFilter { Script = "true" });
destination.Transformers.Add(new DelegateTransformer((src, message) => { }));
destination.Transformers.Add(new DelegateTransformer((src, message) => message.SetValueFrom(message.GetString())));
channel.Destinations.Add(destination);
}
{
// This destination will filter out the message
Destination destination = new Destination();
destination.Target = sendEndpoint;
destination.Filters.Add(new DelegateFilter((src, message) => false));
channel.Destinations.Add(destination);
}
{
// This destination will transform the message
Destination destination = new Destination();
destination.Target = sendEndpoint;
destination.Filters.Add(new DelegateFilter((src, message) => true));
destination.Transformers.Add(new DelegateTransformer((src, message) => message.SetValueFrom(message.GetString() + "test")));
channel.Destinations.Add(destination);
}
// Host
ApplicationHost applicationHost = new ApplicationHost();
Assert.IsNotNull(applicationHost.Applications);
applicationHost.Deploy(application);
// Start the processing
Message testMessage = new Message("text/json");
testMessage.SetValueFrom("AAAA");
// Mock method for sending a test message
((EndpointMock) endpoint).SendTestMessage(testMessage);
// Check that endpoint received the message
EndpointMock endpointMock = sendEndpoint as EndpointMock;
Assert.IsNotNull(endpointMock);
Assert.IsNotNull(endpointMock.Messages);
Assert.AreEqual(2, endpointMock.Messages.Count);
foreach (byte[] data in endpointMock.Messages)
{
string actual = Encoding.UTF8.GetString(data);
if (actual.EndsWith("test"))
{
Assert.AreEqual(testMessage.GetString() + "test", actual);
}
else
{
Assert.AreEqual(testMessage.GetString(), actual);
}
}
}
