org.soulwing.cas.client.UrlProtocolSource.java Source code

Introduction

Here is the source code for org.soulwing.cas.client.UrlProtocolSource.java

Source

/*
 * UrlProtocolSource.java
 *
 * Created on Sep 12, 2006
 *
 * Copyright (C) 2006, 2007 Carl E Harris, Jr.
 * 
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or (at
 * your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 */
package org.soulwing.cas.client;

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.xml.sax.InputSource;

/**
 * A ProtocolSource fetched from a URL connection.
 *
 * @author Carl Harris
 * 
 */
public class UrlProtocolSource implements ProtocolSource {

    private static final Log log = LogFactory.getLog(UrlProtocolSource.class);

    /*
     * @see org.soulwing.cas.client.ProtocolSource#getSource(java.lang.String)
     */
    public InputSource getSource(String url) {
        try {
            log.debug("requesting " + url);
            URLConnection connection = getURL(url).openConnection();
            connection.setRequestProperty("Connection", "close");
            return new InputSource(connection.getInputStream());
        } catch (IOException ex) {
            throw new ServiceAccessException(ex);
        }
    }

    private URL getURL(String url) {
        try {
            return new URL(url);
        } catch (MalformedURLException ex) {
            throw new ServiceAccessException(ex);
        }
    }

}