Overview of the Stream Visualizer ViewStream Panel

1-6 Oracle Complex Event Processing Visualizer Users Guide Figure 1–3 Oracle CEP Visualizer Stream Visualizer ViewStream The PubSub Server URL text box displays the HTTP pub-sub server URL included with Oracle CEP. Click the Initialize Client button to start the process. You can either subscribe or publish a message to a channel using the options mentioned in this panel. You can subscribe to a user or internal channel and view the events on it or you can publish to a user or internal channel. For more information, see: ■ Section 4.4, Tracing and Injecting Events in the EPN ■ Chapter 14, Managing HTTP Publish-Subscribe Servers

1.2.6 Overview of the Event Processing Network

The main purpose of the Event Processing Network EPN panel is to give users an overall view of the stages in an Oracle CEP application and the various event types they produce and consume. In the left pane, navigate to and expand the Applications node, select an application, and in the right pane, click the Event Processing Network tab to view the EPN as Figure 1–4 shows. Overview of Oracle CEP Visualizer 1-7 Figure 1–4 Event Processing Network Panel

1.2.6.1 Event Processing Network Context Menu

You can right-click any stage in the Event Processing Network and select one of the options from the Event Processing Network context menu that Table 1–2 describes. Table 1–2 Event Processing Network Context Menu Option Description Open Panel Opens the General tab for the selected stage. See Section 4.2, Viewing and Editing the Configuration of a Stage . Record Event Opens the Record tab for the selected stage. See Section 4.3.1, How to Record Events . Playback Event Opens the Playback tab for the selected stage. See Section 4.3.2, How to Playback Events . Trace Event Opens the Trace Event tab for the selected stage. See Section 4.4.1, How to Trace Events on a Dynamic Channel . Inject Event Opens the Inject Event tab for the selected stage. See: ■ Section 4.4.2, How to Inject a Simple Event on an Event Inspector Service Dynamic Channel ■ Section 4.4.3, How to Inject an Event as a JSON String on an Event Inspector Service Dynamic Channel