Handling references to external files in the XML input

The XML input can contain references to external files. To be able to extract data from the external files, you must:

•	Add the applicable parts of the external document to the XMLIN configuration.

•	Enable extraction of data from external files.

To enable extraction of data from external files

1	In the Design Center Message window, right-click the XMLIN Event and select Settings. The Event Settings dialog box opens.

2	On the Agent Settings tab, select Expand external entities and click OK.

Caching external files

The StreamServer can cache the external file instead of downloading it each time. You specify the file cache settings in the Configure Platform dialog box.

1	Right-click the Platform window and select Configure Platform. The Configure Platform dialog box opens.

2	On the File Cache tab, configure the file cache settings.

 

File cache settings
File cache base directory	The file cache base directory. You can use an absolute path, or a path relative to the StreamServer’s working directory. XML and DTD documents will be cached in a sub-directory called XML.
Enable XML cache	Select this option if you want the StreamServer to cache XML and DTD documents.
XML cache size	The maximum number of documents in the XML cache directory. When the limit is exceeded, the oldest document will be removed.
XML cache time-out	The “best before date” for a cached document. The StreamServer checks this date each time it retrieves a document from the cache. If the document is older than the cache time-out, it will be updated.