There are several ways of PowerPoint to Flash conversion solution creation with iSpring Platform. Depending on project demands, estimated number of presentation conversions, and scalability of the solution, you can choose one of the following ways of iSpring Platform integration.
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Simple online PowerPoint to Flash conversion solution.
- Create a simple web page that prompts user to upload PowerPoint presentation file to the server
- Convert it after uploading using COM API or Command Line interface in a web page code
Heavy CPU load and memory consumption. If several users upload presentations at the same time, several iSpring Platform processes work simultaneously. This can lead to a high CPU load and higher memory consumption.
User experience issue. Web page will not be shown to the client until the conversion process is finished.
Security issue. User account which is used for web page generation (for IIS it is usually NETWORK_SERVICE user account) has limited permissions to activate COM objects, use PowerPoint, and access file system. To make iSpring Platform work using such user account you would probably have to setup necessary permissions to user account (read Installing iSpring Platform under Windows Server 2003 articles for details).
Advanced online PowerPoint to Flash conversion solution.
Queue. When a user uploads their presentation to the server, they put information about the presentation into the queue. This queue can be implemented, for example, as a database table or as a Web service at the same or another computer.
Multiple processes. Create a process or several processes that periodically scans the queue for new entries and converts them using iSpring Platform. Usually 2 or 3 simultaneously running iSpring Platform processes provide the maximum efficiency on modern server hardware. During conversion, these processes can dynamically update the status of presentations being converted by handling iSpring Platform Events.
You can run several copies of iSpring Platform on dedicated computers; this requires the purchase of additional licenses.
Notifications. To notify users about the progress of the conversion process dynamically, you can use AJAX or Flash technologies or simply display conversion status by reloading the web page.