Examples with Protocol org.apache.nutch.protocol.Protocol used on opensource projects

Example 16 with Protocol

use of org.apache.nutch.protocol.Protocol in project nutch by apache.

the class TestFeedParser method testParseFetchChannel.

/**
 * Calls the {@link FeedParser} on a sample RSS file and checks that there are
 * 3 {@link ParseResult} entries including the below 2 links:
 * <ul>
 * <li>http://www-scf.usc.edu/~mattmann/</li>
 * <li>http://www.nutch.org</li>
 * </ul>
 *
 * @throws ProtocolNotFound
 *           If the {@link Protocol}Layer cannot be loaded (required to fetch
 *           the {@link Content} for the RSS file).
 * @throws ParseException
 *           If the {@link Parser}Layer cannot be loaded.
 */
@Test
public void testParseFetchChannel() throws ProtocolNotFound, ParseException {
    String urlString;
    Protocol protocol;
    Content content;
    ParseResult parseResult;
    Configuration conf = NutchConfiguration.create();
    for (int i = 0; i < sampleFiles.length; i++) {
        urlString = "file:" + sampleDir + fileSeparator + sampleFiles[i];
        urlString = urlString.replace('\\', '/');
        protocol = new ProtocolFactory(conf).getProtocol(urlString);
        content = protocol.getProtocolOutput(new Text(urlString), new CrawlDatum()).getContent();
        parseResult = new ParseUtil(conf).parseByExtensionId("feed", content);
        Assert.assertEquals(3, parseResult.size());
        boolean hasLink1 = false, hasLink2 = false, hasLink3 = false;
        for (Iterator<Map.Entry<Text, Parse>> j = parseResult.iterator(); j.hasNext(); ) {
            Map.Entry<Text, Parse> entry = j.next();
            if (entry.getKey().toString().equals("http://www-scf.usc.edu/~mattmann/")) {
                hasLink1 = true;
            } else if (entry.getKey().toString().equals("http://www.nutch.org/")) {
                hasLink2 = true;
            } else if (entry.getKey().toString().equals(urlString)) {
                hasLink3 = true;
            }
            Assert.assertNotNull(entry.getValue());
            Assert.assertNotNull(entry.getValue().getData());
        }
        if (!hasLink1 || !hasLink2 || !hasLink3) {
            Assert.fail("Outlinks read from sample rss file are not correct!");
        }
    }
}