EAN-130836479003811   EAN-13 barcode 0836479003811
UPC-A836479003811   UPC-A barcode 836479003811
Product NameVelleman Compact Universal Dc Adapter Power Supply
CategoryElectronics / Photography
Short DescriptionWeight:0.5 pounds
Amazon.comA Buy on Amazon ~ B00068U44I
Price New15.53 US Dollars    (curriencies)
Long DescriptionThis regulated power supply from Velleman is versatile enough to handle most any application. Six selectable voltages (3-12 VDC) allow for use with most hand held or office electronics.
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Created11-22-2012 9:23:30pm
Modified10-10-2017 1:54:29pm
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This is a basic implementation of a service that provides retrieval access to the UPC web site. Its was coded to verify basic  proof-of-concept for development of another application and was not intended to provide be anything more than basic functionality in the retrieval  of UPC data from the web site.

There are several places where simple code was left in place rather than using more advanced Java features/methods to allow for easier  understanding of junior developers. Not much time spent refactoring or cleaning up the code. It is provided as a starting point only.

It contains a Factory service that returns a service object configured using the (see below) file found in the class path of  the executed code. The UpcQueryService can respond with an implementation of the UpcResponse and supporting interfaces or with an InputStream  allowing direct access to the response from the from the web site.

JSR 353 is the Java API for JSON is currently under development ( &  The several Java JSON implementations seemed to be more than I was wanting/needing so I wrote a basic parser to provide JSON parsing capability  needed. Its not perfect but is a good basic start.

Download the example source code

The must be configured.

Url (Required)
provides the address used to query UPC data. The additional parameters are added to retrieve the requested information.

ApiKeyCode (Required)
Provided from when your account is setup.

Mode (Required)
The manner in which the data will be retrieved from the web site.
AutoRetrieveGraphics (Optional)
Boolean to indicate whether the graphics, when indicated by a Url, are to be automatically retrieved at the same time with the UPC data. Default is false. A factory method allows for the this property to be overridden at the time the UpcQueryService is created.