Android™

Must-Match Patterns

See more Spider Examples

You may restrict the spider to only follow links that match any one of a set of "must-match" wildcard patterns. The AddMustMatchPattern can be called repeatedly to add must-match patterns. Android™

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    CkSpider spider = new CkSpider();

    //  --------------------------------------------------------------------
    //  Note: The URLs in this example are no longer valid.
    //  You should replace the URLs with URLs from a site of your
    //  own choosing -- preferably your own site if testing.
    //  (Google's Directory no longer exists.)
    //  --------------------------------------------------------------------

    //  First, we'll get the outbound links for a page in the
    //  Google directory.  Then we'll add some must-match
    //  and then re-fetch, to see it work...

    spider.Initialize("directory.google.com");
    spider.AddUnspidered("http://directory.google.com/Top/Recreation/Outdoors/Hiking/Backpacking/");

    success = spider.CrawlNext();

    //  Display the outbound links
    int i;
    String url;
    for (i = 0; i <= spider.get_NumOutboundLinks() - 1; i++) {
        Log.i(TAG, spider.getOutboundLink(i));
        }

    //  The output:
    //  http://www.backpacker.com
    //  http://www.cmc.org
    //  http://www.backpacking.net
    //  http://www.thebackpacker.com/
    //  http://www.rei.com/online/store/LearnShareArticlesList?categoryId=Camping
    //  http://www.trailspace.com/
    //  http://www.catskillhikes.com/
    //  http://gorp.away.com/gorp/location/asia/nepal/favpicks.htm
    //  http://www.backpackinglight.com/cgi-bin/backpackinglight/index.html
    //  http://www.yetizone.com/
    //  http://www.backpackingfun.com
    //  http://www.freezerbagcooking.com/
    //  http://www.spadout.com/backpacking/
    //  http://sierrabackpacker.com
    //  http://www.abovecalifornia.com/
    //  http://www.personal.psu.edu/faculty/r/p/rpc1/bbb/
    //  http://www.thebackpackersguide.com
    //  http://www.journeywest.com/WB/index.html
    //  http://www.johann-sandra.com/backpackdir.htm
    //  http://www.geocities.com/amytys/
    //  http://www.cloudwalkersbasecamp.com
    //  http://www.netbackpacking.com
    //  http://members.tripod.com/~stooges/
    //  http://www.thebackpackingsite.com
    //  http://www.thruhikers.com/
    //  http://www.redcompservices.com/AT/
    //  http://members.aol.com/CMorHiker/backpack
    //  http://mywebpages.comcast.net/midwestpacker/
    //  http://www.midwesthiker.com/
    //  http://www.WeBackpack.com
    //  http://www.michiganhiker.com
    //  http://www.host33.com/backpack/
    //  http://www.wilderness-backpacking.com
    //  http://www.thetravelmonkey.net
    //  http://dmoz.org/cgi-bin/add.cgi?where=Recreation/Outdoors/Hiking/Backpacking
    //  http://dmoz.org/about.html
    //  http://dmoz.org/cgi-bin/apply.cgi?where=Recreation/Outdoors/Hiking/Backpacking
    //  http://dmoz.org
    //  http://dmoz.org/profiles/cdog.html
    //  http://dmoz.org/profiles/justinwp.html

    //  Do it again, but this time with avoid patterns.
    spider.Initialize("directory.google.com");
    spider.AddUnspidered("http://directory.google.com/Top/Recreation/Outdoors/Hiking/Backpacking/");

    //  Add some must-match patterns:
    spider.AddMustMatchPattern("*.com/*");
    spider.AddMustMatchPattern("*.net/*");

    //  Add some avoid-patterns:
    spider.AddAvoidOutboundLinkPattern("*.mypages.*");
    spider.AddAvoidOutboundLinkPattern("*.personal.*");
    spider.AddAvoidOutboundLinkPattern("*.comcast.*");
    spider.AddAvoidOutboundLinkPattern("*.aol.*");
    spider.AddAvoidOutboundLinkPattern("*~*");

    success = spider.CrawlNext();

    Log.i(TAG, "-----------------------");

    //  Display the outbound links
    for (i = 0; i <= spider.get_NumOutboundLinks() - 1; i++) {
        Log.i(TAG, spider.getOutboundLink(i));
        }

    //  Output:
    //  http://www.thebackpacker.com/
    //  http://www.rei.com/online/store/LearnShareArticlesList?categoryId=Camping
    //  http://www.trailspace.com/
    //  http://www.catskillhikes.com/
    //  http://gorp.away.com/gorp/location/asia/nepal/favpicks.htm
    //  http://www.backpackinglight.com/cgi-bin/backpackinglight/index.html
    //  http://www.yetizone.com/
    //  http://www.freezerbagcooking.com/
    //  http://www.spadout.com/backpacking/
    //  http://www.abovecalifornia.com/
    //  http://www.journeywest.com/WB/index.html
    //  http://www.johann-sandra.com/backpackdir.htm
    //  http://www.geocities.com/amytys/
    //  http://www.thruhikers.com/
    //  http://www.redcompservices.com/AT/
    //  http://www.midwesthiker.com/
    //  http://www.host33.com/backpack/

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}