|
1
4 package com.opensymphony.webwork.validators;
5
6 import com.opensymphony.webwork.WebWorkStatics;
7 import com.opensymphony.xwork.*;
8 import com.opensymphony.xwork.config.entities.ActionConfig;
9 import org.apache.commons.logging.Log;
10 import org.apache.commons.logging.LogFactory;
11 import uk.ltd.getahead.dwr.ExecutionContext;
12
13 import javax.servlet.ServletConfig  ;
14 import java.util.HashMap ;
15 import java.util.Map ;
16
17
29 public class DWRValidator {
30 private static final Log LOG = LogFactory.getLog(DWRValidator.class);
31
32 public ValidationAwareSupport doPost(String namespace, String action, Map params) throws Exception {
33 ServletConfig sc = ExecutionContext.get().getServletConfig();
34 HashMap ctx = new HashMap ();
35
36 ctx.put(ActionContext.PARAMETERS, params);
37 ctx.put(WebWorkStatics.SERVLET_CONTEXT, sc.getServletContext());
38
39 try {
40 ValidatorActionProxy proxy = new ValidatorActionProxy(namespace, action, ctx);
41 proxy.execute();
42 Object a = proxy.getAction();
43
44 if (a instanceof ValidationAware) {
45 ValidationAware aware = (ValidationAware) a;
46 ValidationAwareSupport vas = new ValidationAwareSupport();
47 vas.setActionErrors(aware.getActionErrors());
48 vas.setActionMessages(aware.getActionMessages());
49 vas.setFieldErrors(aware.getFieldErrors());
50
51 return vas;
52 } else {
53 return null;
54 }
55 } catch (Exception e) {
56 LOG.error("Error while trying to validate", e);
57 return null;
58 }
59 }
60
61 public static class ValidatorActionInvocation extends DefaultActionInvocation {
62 protected ValidatorActionInvocation(ActionProxy proxy, Map extraContext) throws Exception {
63 super(proxy, extraContext, true);
64 }
65
66 protected String invokeAction(Action action, ActionConfig actionConfig) throws Exception {
67 return Action.NONE; }
69 }
70
71 public static class ValidatorActionProxy extends DefaultActionProxy {
72 protected ValidatorActionProxy(String namespace, String actionName, Map extraContext) throws Exception {
73 super(namespace, actionName, extraContext, false);
74 }
75
76 protected void prepare() throws Exception {
77 invocation = new ValidatorActionInvocation(this, extraContext);
78 }
79 }
80 }
81 |
Popular Tags |
Java API By Example, From Geeks To Geeks.