de.nava.informa.utils
Class FormatDetector

java.lang.Object
  de.nava.informa.utils.FormatDetector

public final class FormatDetector
extends Object

Utility class for analysing the news channel syntax and mapping to known format to ease further processing.

Author:

Niko Schmuck (niko@nava.de)

Constructor Summary

FormatDetector()

Method Summary

static ChannelFormat	getFormat(InputStream in) Guess the format of the specified news channel.
static ChannelFormat	getFormat(URL url) Guess the format of the specified news channel.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FormatDetector

public FormatDetector()

Method Detail

getFormat

public static ChannelFormat getFormat(URL url)
                               throws IOException,
                                      UnsupportedFormatException

Guess the format of the specified news channel. For performance reason it is wise to minimize the number of format guesses.

Parameters:

url - a url to the news channel.

Returns:

The news channel synatx format, currently only RSS 0.91 (ChannelFormat.RSS_0_91) and RSS/RDF 1.0 (ChannelFormat.RSS_1_0) are recognized.

Throws:

UnsupportedFormatException - in case a news channel format could not be guessed.

IOException - if the given url cannot be read in.

getFormat

public static ChannelFormat getFormat(InputStream in)
                               throws IOException,
                                      UnsupportedFormatException

Guess the format of the specified news channel. For performance reason it is wise to minimize the number of format guesses.

Parameters:

in - an InputStream to the news channel.

Returns:

The news channel synatx format, currently only RSS 0.91 (ChannelFormat.RSS_0_91) and RSS/RDF 1.0 (ChannelFormat.RSS_1_0) are recognized.

Throws:

UnsupportedFormatException - in case a news channel format could not be guessed.

IOException - if the given url cannot be read in.