Databases
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    <p>the HEAD operation, as defined by the HTTP standard does not return any content apart from the header information. So if you are sending a head request, you could only inspect the MIME type of the file from the HTTP response header.</p> <p>The header information can be obtained by looking at the Representation returned from wrapping it into a ClientResource and performing a head request. This gives you a high level interface to the HTTP transport and you don't need to do custom header parsing.</p> <pre><code>ClientResource resource = new ClientResource(url); Representation representation = resource.head(); representation.getMediaType(); // returns the Media Type </code></pre> <p>If you want to do content type guessing on the actual content of the file, you would need to download the actual content, for example with a GET request against that resource.</p> <p>Or in true REST fashion you could model an extra query parameter for your resource which would return your custom meta information for that file, e.g.</p> <pre><code>http://server/file?contentType </code></pre> <p>In similar fashion, to retrieve the actual content, you could get a handle on the Stream and then do your encoding guessing.</p> <pre><code>Representation representation = resource.get(); InputStream stream = representation.getStream(); </code></pre> <p>To specify ranges, if supported by the server, you can set the ranges, before submitting your get request.</p> <pre><code>List&lt;Range&gt; ranges = new ArrayList&lt;Range&gt;(); ranges.add(new Range(0,100)); // this would request the first 100 bytes resource.setRanges(ranges); Representation representation = resource.get(); </code></pre> <p>Make sure you consume the response (stream) completely, before returning.</p> <p>I suggest you would look into other efforts which help you determining the content type. Like here <a href="https://stackoverflow.com/questions/457655/java-charset-and-windows/457849#457849">Java charset and Windows</a> Or <a href="http://glaforge.free.fr/wiki/index.php?wiki=GuessEncoding" rel="nofollow noreferrer">http://glaforge.free.fr/wiki/index.php?wiki=GuessEncoding</a></p>
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    1. POReading the first part of a file using HTTP
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    1. COI was not clear enough - I need the content, not the media-type
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    2. COIn JavaScript you read a part of file and send an Ajax request which would get the content type.
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      1. USDead Programmer
 

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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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