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1
18 package org.apache.beehive.netui.pageflow.interceptor.action;
19
20 import org.apache.beehive.netui.util.logging.Logger;
21 import org.apache.beehive.netui.pageflow.Forward;
22
23 import javax.servlet.http.HttpServletRequest  ;
24 import java.util.Enumeration ;
25 import java.util.Map ;
26 import java.util.HashMap ;
27 import java.util.Iterator ;
28 import java.io.Serializable ;
29
30 class OriginalForward extends InterceptorForward
31 {
32 private Map _savedAttrs;
33
34 private static final Logger _log = Logger.getInstance( OriginalForward.class );
35
36
37 OriginalForward( Forward fwd, HttpServletRequest request )
38 {
39 super( fwd );
40 saveRequestAttrs( request );
41 }
42
43 OriginalForward( HttpServletRequest request )
44 {
45 super( request );
46 saveRequestAttrs( request );
47 }
48
49 private void saveRequestAttrs( HttpServletRequest request )
50 {
51 _savedAttrs = new HashMap ();
52
53 for ( Enumeration e = request.getAttributeNames(); e.hasMoreElements(); )
54 {
55 String attrName = ( String ) e.nextElement();
56 Object attrVal = request.getAttribute( attrName );
57
58 if ( attrVal instanceof Serializable )
59 {
60 _savedAttrs.put( attrName, attrVal );
61 }
62 else
63 {
64 if ( _log.isWarnEnabled() )
65 {
66 _log.warn( "Dropping non-serializable request attribute " + attrName + " (" + attrVal + ")." );
67 }
68 }
69 }
70 }
71
72 public void rehydrateRequest( HttpServletRequest request )
73 {
74 if ( _savedAttrs != null )
75 {
76 for ( Iterator i = _savedAttrs.entrySet().iterator(); i.hasNext(); )
77 {
78 Map.Entry entry = ( Map.Entry ) i.next();
79
80 String attrName = ( String ) entry.getKey();
81 if ( request.getAttribute( attrName ) == null )
82 {
83 request.setAttribute( attrName, entry.getValue() );
84 }
85 }
86 }
87 }
88 }
89 |
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