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Using the WebLogic Diagnostic Framework Console Extension

# Working with Views

A view is a named collection of charts and graphs that present graphical information of similar diagnostic type data. The Views tab in the left panel provides the means to create, select, modify, and delete views. When you select (click) the name of a view in the Views tab on the left, the view is displayed in the View panel on the right, as shown in Figure 5-1. That view remains displayed in the View panel, even when you select different tabs in the left panel.

Figure 5-1 Views Tab and View Panel

The Views tab lists both built-in and custom views.

- Built-in views are a set of predefined views of available runtime metrics. These views surface some of the more critical runtime WebLogic Server performance metrics and serve as examples of the WLDF Console Extension's view and graphing capabilities.

Built-in views are available for every user logged into the Administration Console and using the WLDF Console Extension.

You can modify a built-in view, but the modification is only visible during your current session; it is lost when you switch back to the primary Administration Console view. Also, no other user can access the modified view. If you want to modify and save one of the built-in views, you can clone it and save it as a custom view.

- A custom view is any view created by a user. Custom views are available only to the user who created them. You can save a custom view and access it again when needed.

WLDF Console Extension provides no pre-defined custom views.

The views listed in the Views tab are displayed in separate trees, as shown in Figure 5-2.

Figure 5-2 Built-in and Custom Views Displayed in the View Tab

Table 5-1 describes the visual cues that help identify the views in the Views tab.

Table 5-1 Views Tab Icons

Visual Cue | Description | Description
--- | --- | ---
| Green icon adjacent to a view name | The view is active and data polling is occurring for all charts in that view. (This is true whether or not the view is currently displayed in the View panel.)
| Yellow icon adjacent to a view name | The view is inactive and data polling is not occurring for the charts in that view.
| View name in bold font | The view is the default view.
| View name in italic font | The view has not yet been saved.

# Displaying and Modifying an Existing View

To display and modify an existing view:

1. Click the Views tab to display the list of available views.
2. Click the name of the view. The view appears in the View panel, replacing the view that is currently displayed. (Only one view can be displayed at a time.)
3. Add and modify charts, as desired. See Creating and Modifying Charts and Graphs.
4. If it is a custom view, you can save it:

- In the Views tab, click the Save button, or
- On the toolbar, click the (Save All Modified Views) button to save all custom views.

# Creating a New View

To create and display a new view:

1. Click the Views tab.
2. In the text field at the bottom of the browser, enter a name for the view.
3. Click Create to create the view. The new, empty view is displayed in the View panel.
4. Add and modify charts, as desired. See Creating and Modifying Charts and Graphs.
5. Save the view:

- In the Views tab, click the Save button, or
- On the toolbar, click the (Save All Modified Views) button to save all custom views.

# Creating a View Based on an Existing View (Cloning)

To create and display a view based on an existing view:

1. Click the Views tab.
2. Click the name of the existing view on which you want to base a new view.
3. In the text field at the bottom of the browser, enter a name for the new view.
4. Click Clone to copy the current view with a new name. The new, cloned view is displayed in the View panel. Until you make changes, the cloned view has the same properties as the view upon which it is based.
5. Add and modify charts, as desired. See Creating and Modifying Charts and Graphs.
6. If it is a custom view, you can save it:

- In the Views tab, click the Save button, or
- On the toolbar, click the (Save All Modified Views) button to save all custom views.

# Changing the Name of a View

You can change the names of custom views only. To change the name of a view:

1. Click the Views tab.
2. Right-click the name of the view you want to save, select Rename, and type a new name. Alternatively, in the View panel, right-click the name of the current view at the top of the panel. Then type a new name in the field.
3. In the Views tab, click the Save button.

# Saving A Custom View

While you can modify any view for the current session, you can save only custom views. To save a custom view:

1. Click the Views tab.
2. Click the name of the custom view you want to save.
3. Click the Save button.

Alternatively,. click the (Save All Modified Views) button on the toolbar to save all custom views.

# Deleting a View

You can only delete custom view. To delete a custom view:

1. Click the Views tab.
2. Click the name of the view you want to delete.
3. Click the (Delete) button in the toolbar. Alternatively, right-click the name of the view and select Delete from the menu.

# Starting and Stopping a View

When you start a view, polling commences for the charts in the view. That is, the client starts polling for data from the server, so that the data can be represented in one or more graphs. When you stop a view, polling for the view ends.

To start a view:

1. Click the Views tab.
2. Right-click the view you want to start, and select Start from the menu.

To stop a view:

1. Click the Views tab.
2. Right-click the view you want to stop, and select Stop from the menu.

To stop all views, click the (Stop All Active Views) button on the toolbar to stop all active views.

Note: Current data for Metrics charts is polled from a data cache on the server. Historical data for Metrics charts and all data for Method Performance charts are retrieved from data archives. If you stop all views, data is no longer added to the data cache on the server. For more information, see Understanding How Data Is Collected and Presented.