/** * ArcIMSClient.java * * @author Stefano Giaccio */package org.wfp.vam.intermap.kernel.map.mapServices.arcims;import java.net.*;import java.io.*;import org.jdom.*;import jeeves.utils.Xml;public class ArcIMSClient {	private static final int BUF_SIZE = 1024;	private String server; // Server name	private String service; // Service name	private String user =  null;	private String password = null;	private String customService = null;	private Element request;	private HttpURLConnection conn;	public ArcIMSClient(String server, String service, String customService, Element request) {		this.server = server;		this.service = service;		this.request = request;		this.customService = customService;	}	public ArcIMSClient(String server, String service, Element request) {		this(server, service, null, request);	}	/**	 * Sets the user id for authentication	 *	 * @param    user                a  String	 *	 */	public void setUser(String user) {		this.user = user;	}	/**	 * Set the password for authentication	 *	 * @param    password            a  String	 *	 */	public void setPassword(String password) {		this.password = password;	}	/**	 * Sends the request and gets the response as a Jdom Element	 *	 * @return  the response as a Jdom Element	 *	 * @throws   IOException if a connection failure occurs	 * @throws   JDOMException if a xml parsing error occurs	 *	 */	public Element getElement() throws Exception	{		// Get the response from the server		return  Xml.loadString(getString(), false); // DEBUG	}	/**	 * Sends the request and gets the response as a String	 *	 * @return   the response as a String	 *	 * @throws   IOException if a connection failure occurs	 *	 */	public String getString() throws IOException	{		sendRequest();		// Get the response from the server		InputStream is = conn.getInputStream();		String response = "";		byte[] buf = new byte[BUF_SIZE];		for (int n; (n = is.read(buf, 0, BUF_SIZE)) > 0; )			response += new String(buf, 0, n);		conn.disconnect();		return response;	}	/**	 * Send the request to the ArcIMS map server	 *	 * @throws   IOException if a connection failure occurs	 *	 */	private void sendRequest()		throws IOException	{		try {			String stUrl = server + "?ServiceName=" + service + "&ClientVersion=4.0";			if (customService != null) {				stUrl += "&CustomService=" + customService;			}			URL url = new URL(stUrl);						// Connect to the server			conn = (HttpURLConnection)url.openConnection();						// Set the authentication parameters			if (user != null && password != null) {				sun.misc.BASE64Encoder encoder = new sun.misc.BASE64Encoder();				String userPwd = encoder.encode((user + ":" + password).getBytes());				conn.setRequestProperty("Authentication", "Basic " + userPwd);			}						// Send the request to the ArcIMS server			conn.setDoOutput(true);			BufferedOutputStream os = new BufferedOutputStream(conn.getOutputStream());						// Send the request to the server			os.write(Xml.getString(request).getBytes());			os.flush();			os.close();		} catch (IOException e) {			e.printStackTrace();			throw(e);		}	}}