Contents
This sample demonstrates the ability to both send and receive strings through the use of the Spotfire Streaming Input and Output Adapters for UDP, in multicast mode. Both the sender and receiver adapters are configured on the default Multicast Group IP and Port number. This sample contains one UDPSender and two UDPReceivers to illustrate the use of the multicast message delivery.
In StreamBase Studio, import this sample with the following steps:
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From the top-level menu, select >.
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Enter
udpto narrow the list of options. -
Select UDP Multicast Mode Input and Output Adapters from the StreamBase Standard Adapters category.
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Click .
StreamBase Studio creates a project for the sample.
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In the Project Explorer view, open the sample you just loaded.
If you see red marks on a project folder, wait a moment for the project to load its features.
If the red marks do not resolve themselves after a minute, select the project, right-click, and select > from the context menu.
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Open the
src/main/eventflow/folder.packageName -
Open the
udp_multi_sample.sbappfile and click the
Run button. This opens the SB
Test/Debug perspective and starts the module.
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In the Feed Simulations view, select
input_stream_multi.sbfsand click .There will be two copies of each tuple on the Output Streams view, one from each of the receiver output streams.
Next, try selecting the Receiver2Control input stream from the dropdown menu in the Manual Input view. Type
disconnectand click . This closes the connection to the multicast group for UDPReceiver2.One copy of each tuple appears on the Output Streams view.
To reconnect, select the Receiver2Control input stream and send the command
connect. -
When done, press F9 or click the
Terminate EventFlow Fragment button.
When you load the sample into StreamBase® Studio, Studio copies the sample project's files to your Studio workspace, which is normally part of your home directory, with full access rights.
Important
Load this sample in StreamBase® Studio, and thereafter use the Studio workspace copy of the sample to run and test it, even when running from the command prompt.
Using the workspace copy of the sample avoids permission problems. The default workspace location for this sample is:
studio-workspace/sample_adapter_embedded_udp_multicast
See Default Installation
Directories for the default location of studio-workspace on your system.