Jakarta Commons Cookbook

11.17. Connecting to WebDAV Resources

Problem

You need to connect to a WebDAV resource and list the contents of a collection. As with most WebDAV resources, you need to supply authentication information.

Solution

Create an instance of WebdavResource, passing in a URL and a UsernamePasswordCredential object. List the contents of a WebDAV collection by calling the listWebdavResources() method. The following example demonstrates the use of WebdavResource to list the contents of a WebDAV collection:

               import org.apache.commons.httpclient.Credentials;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.time.FastDateFormat;
import org.apache.webdav.lib.WebdavResource;

HttpClient client = new HttpClient( );

String url = "http://www.discursive.com/jccook/dav/";
Credentials credentials =
    new UsernamePasswordCredentials("davuser", "davpass");

// List resources in top directory
WebdavResource resource = new WebdavResource(url, credentials);
WebdavResource[] resources = resource.listWebdavResources( );
System.out.println( "type  name           size    type" +
                    "                   modified");
System.out.println( "-----------------------------------------" +
                    "---------------------------");
for( int i = 0; i < resources.length; i++ )    {
    WebdavResource item = resources[i];
    String type;
    if( item.isCollection( ) ) {
        type = "dir";
    } else { type ...