[PB-35] Multiple instances of the same bridge application behave badly due to ID conflicts

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.1
• Component/s: jsf
• Environment: Tested in Liferay
• Assignee: David Sean Taylor
• Reporter: russ danner
• Created: 07/Feb/06 15:52
• Updated: 24/May/07 22:09
• Resolved: 23/Feb/07 00:31

Description

I am using the myFaces implementation of JSF in conjunction with the Apache portal bridge.

I have no issue when I use the portlet as a single instance. All is beautiful. When I make the portlet multi-instance the eorld comes tumbling down. All the javascript and component ID's are the same.

–
I know myfaces looks to the external context to call help create a unique id for the components which should call response.namespace();

You can see in the HTML output of the lifray install that unqiue names are being generated for the each portlet (both the same "flavor")

portlet [com.liferay.portlet.PortletSessionImpl@608486] namespace response[_contentRepositoryBrowser-wide_WAR_contentRepositoryBrowser_INSTANCE_Ju5n_]

portlet [com.liferay.portlet.PortletSessionImpl@1919998] namespace response[_contentRepositoryBrowser-wide_WAR_contentRepositoryBrowser_INSTANCE_1cKB_]

I know myFaces makes the following call on create unique Id:
public String createUniqueId()

{ ExternalContext extCtx = FacesContext.getCurrentInstance().getExternalContext(); return extCtx.encodeNamespace(UNIQUE_ID_PREFIX + _uniqueIdCounter++); }

which in the end should pickup the names given by RenderResponse.getNamespace(), yet that is no where in the HTML output.

As far as I can tell this is because the external context implementation provided with the apache jsf portlet bridge does the following:

/**

• @see javax.faces.context.ExternalContext#encodeNamespace(java.lang.String)
  */
  public String encodeNamespace(String s) { return s; }

according to the documentation for ExternalContext.encodeNamespace(..)
Return the specified name, after prefixing it with a namespace that ensures that it will be unique within the context of a particular page.

Servlet: The input value must be returned unchanged.

Portlet: The returned value must be the input value prefixed by the value returned by the javax.portlet.RenderResponse method getNamespace().