/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nutch.parse.feed;
// JDK imports
import java.util.Iterator;
import java.util.Map;
import org.junit.Assert;
import org.junit.Test;
// APACHE imports
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.Text;
import org.apache.nutch.crawl.CrawlDatum;
import org.apache.nutch.parse.Parse;
import org.apache.nutch.parse.ParseException;
import org.apache.nutch.parse.ParseResult;
import org.apache.nutch.parse.ParseUtil;
import org.apache.nutch.protocol.Content;
import org.apache.nutch.protocol.Protocol;
import org.apache.nutch.protocol.ProtocolFactory;
import org.apache.nutch.protocol.ProtocolNotFound;
import org.apache.nutch.util.NutchConfiguration;
/**
*
* @author mattmann
*
* Test Suite for the {@link FeedParser}.
*
*/
public class TestFeedParser {
private String fileSeparator = System.getProperty("file.separator");
// This system property is defined in ./src/plugin/build-plugin.xml
private String sampleDir = System.getProperty("test.data", ".");
// Make sure sample files are copied to "test.data" as specified in
// ./src/plugin/feed/build.xml during plugin compilation.
private String[] sampleFiles = { "rsstest.rss" };
public static final Logger LOG = LoggerFactory.getLogger(TestFeedParser.class
.getName());
/**
* 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!");
}
}
}
}