Selecting preview output connectors

Prerequisites

The preview output connectors and the output connector for the final release are created.

To select preview output connectors

You can use the scripting functions below to decide if an invocation is a preview service request. If it is a preview service request, you can select the appropriate output connector depending on content type.

See Example 2.

Scripting function	Description
IsPreview()	Checks if the current job is a preview job.
GetPreviewType()	Returns a number, indicating whether a job is a preview job. If the job is a preview job, the number indicates from where the preview job is invoked.
GetRequestedPreviewContentType()	Only available for preview calls from Ad Hoc Correspondence, Correspondence Reviewer and Composition Center. Returns a string containing an optionally requested content type for a response to a preview request. The returned value can be used to select an appropriate connector for the preview Process.

Example 2

Selecting output connector depending on type of preview and content type

A company wants to use settings other than the ones used by the default preview output connectors, which means they must manually create and select the preview connectors.

The Design Center Platform includes the following output connectors in the production layer:

•	PreviewTIFF – For the preview in Ad Hoc Correspondence. The application requires content type image/tiff.

•	PreviewPDF – For the preview in Correspondence Reviewer and Composition Center. The applications require content type application/pdf.

•	FileOUT – For the final release of the document.

In the runtime configuration, the Message is service-enabled, and the Use default preview connector option is cleared.

The script below is run before the Process and selects the output connector that is used.

if (IsPreview()) { $ContentType = GetRequestedPreviewContentType(); if (GetPreviewType() = 1) { if ($ContentType = "image/tiff") { $connector = "PreviewTIFF"; } else if ($ContentType = "application/pdf") { $connector = "PreviewPDF"; } } } else { $connector = "FileOUT"; } preproclog(0, " **** OUTCONNECTOR : " +$connector);

 

Related topics

•	Creating preview output connectors

•	Preview functions in the Scripting Reference