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1   package net.sf.crispy.impl.caucho;
2   
3   import java.io.IOException;
4   import java.util.Enumeration;
5   
6   import javax.servlet.ServletConfig;
7   import javax.servlet.ServletException;
8   import javax.servlet.http.HttpServletRequest;
9   import javax.servlet.http.HttpServletResponse;
10  
11  import net.sf.crispy.InvocationException;
12  import net.sf.crispy.util.Util;
13  
14  import com.caucho.burlap.io.BurlapInput;
15  import com.caucho.burlap.io.BurlapOutput;
16  import com.caucho.burlap.server.BurlapSkeleton;
17  
18  /**
19   * This class execute the services and answer to request from the burlap client.
20   * 
21   * @author Linke
22   *
23   */
24  public class BurlapServlet extends CauchoServlet {
25  
26  	private static final long serialVersionUID = 47128998724L;
27  	
28  	public BurlapServlet() {
29  //		super.addCache(Echo.class.getName(), new BurlapSkeleton(new EchoImpl()));
30  //		super.addCache(Calculator.class.getName(), new BurlapSkeleton(new CalculatorImpl()));
31  	}
32  	
33  	public void init(ServletConfig pvConfig) throws ServletException {
34  		super.init(pvConfig);
35  		Enumeration lvEnumeration = pvConfig.getInitParameterNames();
36  		while (lvEnumeration.hasMoreElements()) {
37  			String lvKey = (String) lvEnumeration.nextElement();
38  			String lvValue = getInitParameter(lvKey);
39  			try {
40  				Object lvServiceObject = Util.createObject(lvValue);
41  				addCache(lvKey, new BurlapSkeleton(lvServiceObject));
42  //				addCache(lvKey, new BurlapInvoker(lvServiceObject, lvServiceObject.getClass()));
43  			} catch (Exception e) {
44  				throw new ServletException("Exception in init-method: " + e, e);
45  			}
46  		}		
47  	}
48  		
49  	protected void doPost(HttpServletRequest pvRequest, HttpServletResponse pvResponse) throws ServletException, IOException {
50  		String lvKey = getCacheKey(pvRequest);
51  		BurlapSkeleton skeleton = (BurlapSkeleton) getFromCache(lvKey);
52  //		BurlapInvoker skeleton = (BurlapInvoker) getFromCache(lvKey);
53  		if (log.isDebugEnabled()) { log.debug("CachKey: " + lvKey + " / Skeleton: " + skeleton); }
54  		if (skeleton == null) { throw new InvocationException("For the key: " + lvKey + " can't find a register service in the BurlapServlet!"); }
55  		
56          BurlapInput in = new BurlapInput(pvRequest.getInputStream());
57          BurlapOutput out = new BurlapOutput(pvResponse.getOutputStream());
58  
59          try {
60          	skeleton.invoke(in, out);        
61          } catch (Throwable e) { 
62          	e.printStackTrace();
63          	throw new ServletException(e); 
64          }
65  	}
66  
67  
68  }