/**
* 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 edu.uci.ics.crawler4j.example.advanced;
import java.util.List;
import edu.uci.ics.crawler4j.crawler.CrawlController;
public class Controller {
/*
* NOTE: You should first look at the simple example
* for a description of the options and configs.
*/
public static void main(String[] args) throws Exception {
if (args.length < 2) {
System.out.println("Please specify 'root folder' and 'number of crawlers'.");
return;
}
String rootFolder = args[0];
int numberOfCrawlers = Integer.parseInt(args[1]);
CrawlController controller = new CrawlController(rootFolder);
controller.addSeed("http://www.ics.uci.edu/");
controller.start(MyCrawler.class, numberOfCrawlers);
List<Object> crawlersLocalData = controller.getCrawlersLocalData();
long totalLinks = 0;
long totalTextSize = 0;
int totalProcessedPages = 0;
for (Object localData : crawlersLocalData) {
CrawlStat stat = (CrawlStat) localData;
totalLinks += stat.getTotalLinks();
totalTextSize += stat.getTotalTextSize();
totalProcessedPages += stat.getTotalProcessedPages();
}
System.out.println("Aggregated Statistics:");
System.out.println(" Processed Pages: " + totalProcessedPages);
System.out.println(" Total Links found: " + totalLinks);
System.out.println(" Total Text Size: " + totalTextSize);
}
}