Lime Citrius Quote Input Adapter Sample

Contents

Importing This Sample into StreamBase Studio
Sample Location
Running This Sample in StreamBase Studio
Running This Sample in Terminal Windows

This sample demonstrates the use of the StreamBase Lime Citrius Quote input adapter.

Importing This Sample into StreamBase Studio

In StreamBase Studio, import this sample with the following steps:

  • From the top menu, click File → Load StreamBase Sample.

  • Select this sample from the Embedded Input Adapters list.

  • Click OK.

StreamBase Studio creates a project for this sample.

Sample Location

By default, the sample files are installed in:

On Windows

C:\Program Files\StreamBase Systems\StreamBase.n.m\sample\adapter\embedded\lime-citrius\

On UNIX

/opt/streambase/sample/adapter/embedded/lime-citrius/

When you load the sample into StreamBase Studio, Studio copies the sample project's files to your Studio workspace. StreamBase Systems recommends that you use the workspace copy of the sample, especially on UNIX, where you may not have write access to /opt/streambase. In the default installation, the path to this sample in your Studio workspace is: 

UNIX:       
   ~/streambase-studio-n.m-workspace/sample_adapter_embedded_lime-citrius
Windows XP:
   C:\Documents and Settings\username\My Documents\
      StreamBase Studio n.m Workspace\sample_embedded_lime-citrius
Windows 7 and Windows Vista:
   C:\Users\username\Documents\StreamBase Studio n.m Workspace\
      sample_embeddedlime-citrius

Running This Sample in StreamBase Studio

  1. In the Package Explorer, double-click LimeCitriusQuote.sbapp.

  2. Select the adapter icon to open the Properties view for the adapter.

  3. Select the Login Properties tab and enter values for Host Name, User Name, and Password. Enable Login at Startup to have the adapter log in to the Lime server when it starts.

  4. Select the Subscription Properties tab and enter values for Quote Source and Symbols. Enable Subscribe at Startup to have the adapter to subscribe to these values when it starts.

  5. Click the Run button. This opens the SB Test/Debug perspective and starts the application.

  6. In the Test/Debug Perspective, open the Application Output view. If connectivity to your Lime server is configured correctly, look for tuples emitted on the Status and Quotes streams.

  7. In the Manual Input view, select the Subscribe stream. Enter false in the subscribe field and IBM in the symbols field and click Send Data. Tuples will stop flowing from the Quotes stream for IBM.

  8. When done, press F9 or click the Stop Running Application button.

Running This Sample in Terminal Windows

This section describes how to run the sample in UNIX terminal windows or Windows command prompt windows. On Windows, be sure to use the StreamBase Command Prompt from the Start menu as described in the Test/Debug Guide, not the default command prompt.

  1. Open three terminal windows on UNIX, or three StreamBase Command Prompts on Windows. In each window, navigate to the directory where the sample is installed, or to your workspace copy of the sample, as described above.

  2. In window 1, type:

    sbd LimeCitriusQuote.sbapp

  3. In window 2, type:

    sbc dequeue -v

    This window will display the tuples dequeued from the adapter's output ports.

  4. In window 3, unsubscribe from IBM:

    echo false,null,IBM | sbc enqueue Subscribe

  5. Observe in windows 2 that tuples stop flowing for IBM.

  6. In window 3, type the following command to terminate the server and dequeuer:

    sbadmin shutdown