[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-2493) Problems with faces Renderer when used simultaneously from different threads

[Pete Muir (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBSEAM-2493?page=comments#action_12402890 ] 
            
Pete Muir commented on JBSEAM-2493:
-----------------------------------

Patch version of this for mail example

Index: resources/WEB-INF/pages.xml
===================================================================
--- resources/WEB-INF/pages.xml	(revision 7576)
+++ resources/WEB-INF/pages.xml	(working copy)
@@ -6,5 +6,8 @@
 	<page view-id="/index.xhtml">
 		<begin-conversation join="true" />
 	</page>
+   
+   
+    <page view-id="/mailbug.xhtml" action="#{seamMailBug1.send}"/> 
 
 </pages>
Index: src/org/jboss/seam/example/mail/SeamMailBug.java
===================================================================
--- src/org/jboss/seam/example/mail/SeamMailBug.java	(revision 0)
+++ src/org/jboss/seam/example/mail/SeamMailBug.java	(revision 0)
@@ -0,0 +1,27 @@
+package org.jboss.seam.example.mail;
+
+import java.util.List;
+
+import org.jboss.seam.ScopeType;
+import org.jboss.seam.annotations.In;
+import org.jboss.seam.annotations.Name;
+import org.jboss.seam.annotations.Scope;
+import org.jboss.seam.annotations.async.Asynchronous;
+import org.jboss.seam.contexts.Context;
+import org.jboss.seam.contexts.Contexts;
+import org.jboss.seam.faces.Renderer;
+
+ at Name("seamMailBug")
+ at Scope(ScopeType.EVENT)
+public class SeamMailBug {
+
+    @In
+    private Renderer renderer;
+
+    @Asynchronous
+    public void send(List<String> asList) {
+        Context c = Contexts.getEventContext();
+        c.set("l", asList);
+        renderer.render("/seamMailBug.xhtml");
+    }
+}
Index: src/org/jboss/seam/example/mail/SeamMailBug1.java
===================================================================
--- src/org/jboss/seam/example/mail/SeamMailBug1.java	(revision 0)
+++ src/org/jboss/seam/example/mail/SeamMailBug1.java	(revision 0)
@@ -0,0 +1,20 @@
+package org.jboss.seam.example.mail;
+
+import java.util.Arrays;
+
+import org.jboss.seam.Component;
+import org.jboss.seam.ScopeType;
+import org.jboss.seam.annotations.Name;
+import org.jboss.seam.annotations.Scope;
+
+ at Name("seamMailBug1")
+ at Scope(ScopeType.EVENT)
+public class SeamMailBug1 {
+    public void send() {
+        SeamMailBug smb = (SeamMailBug) Component
+                .getInstance(SeamMailBug.class);
+        smb.send(Arrays.asList(new String[] { "L2-1" }));
+        smb.send(Arrays.asList(new String[] { "L1-1", "L1-2", "L1-3" }));
+    }
+
+}
\ No newline at end of file
Index: view/seamMailBug.xhtml
===================================================================
--- view/seamMailBug.xhtml	(revision 0)
+++ view/seamMailBug.xhtml	(revision 0)
@@ -0,0 +1,13 @@
+<ui:composition
+	xmlns:m="http://jboss.com/products/seam/mail"
+	xmlns:ui="http://java.sun.com/jsf/facelets">
+<ui:repeat  value="#{l}" var="v">
+	<m:message>
+		<m:from>some at bo.dy</m:from>
+		<m:to name="Marcus">pmuir at bleepbleep.org.uk</m:to>
+		<m:body>
+	Guten Tag! #{v}
+</m:body>
+	</m:message>
+</ui:repeat>
+</ui:composition>
\ No newline at end of file


> Problems with faces Renderer when used simultaneously from different threads
> ----------------------------------------------------------------------------
>
>                 Key: JBSEAM-2493
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-2493
>             Project: JBoss Seam
>          Issue Type: Bug
>          Components: Mail
>    Affects Versions: 2.0.0.GA
>         Environment: Seam-App in JBoss 4.2
> Properly configure mail-service
>            Reporter: Marcus Schmidke
>         Assigned To: Pete Muir
>            Priority: Minor
>             Fix For: 2.0.2.GA, 2.1.0.GA
>
>
> When creating multiple renderers in different threads and using them simultaneously, there are problems with JSF variables (for example in ui:repeat)
> Create the following classes:
> @Name("seamMailBug")
> @Scope(ScopeType.EVENT)
> public class SeamMailBug {
> 	@In
> 	private Renderer renderer;
> 	@Asynchronous
> 	public void send(List<String> asList) {
> 		Context c = Contexts.getEventContext();
> 		c.set("l", asList);
> 		renderer.render("/seamMailBug.xhtml");
> 	}
> }
> @Name("seamMailBug1")
> @Scope(ScopeType.EVENT)
> public class SeamMailBug1 {
> 	public void send() {
> 		SeamMailBug smb = (SeamMailBug) Component
> 				.getInstance(SeamMailBug.class);
> 		smb.send(Arrays.asList(new String[] { "L2-1" }));
> 		smb.send(Arrays.asList(new String[] { "L1-1", "L1-2", "L1-3" }));
> 	}
> }
> Create the mail template seamMailBug.xhtml:
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <ui:repeat xmlns="http://www.w3.org/1999/xhtml"
>     xmlns:m="http://jboss.com/products/seam/mail"
> 	xmlns:ui="http://java.sun.com/jsf/facelets"
>     value="#{l}" var="v"
>     >
> 	<m:message>
> 		<m:from>some at bo.dy</m:from>
> 		<m:to name="Marcus">your.own at email.address</m:to>
> 		<m:body>
> 		  Guten Tag! #{v}
> 		</m:body>
> 	</m:message>
> </ui:repeat>
> And in pages.xml:
> 	<page view-id="/seambug.xhtml" action="#{seamMailBug1.send}"/>
> Start the server and get the URL: http://..../.../seambug.seam
> One should expect 4 mails being sent, containing the strings L1-1, L1-2, L1-3 and L2-1.
> The number of mails actually sent will be correct, but carefully verify the strings being sent.
> You will see that the "v" iterator variable is the same used from both threads.

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