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Setting a WebCenter Maintenance Page

When you shutdown WebCenter, the apache weblogic mod takes over the control of error pages and shows:

Failure of server APACHE bridge:
No backend server available for connection: timed out after 10 seconds or idempotent set to OFF.

Let’s face it that’s not user friendly and needs to be replaced with a nice page.

Solution
You can set a custom error page following the steps below:

*if you haven’t got OHS_HOME, I recommend you set up this environment variable. The path should look similar to the below:
/apps/oracle/product/middleware/Oracle_WT1/instances/instance1/config/OHS/ohs1

First copy your custom html to the server.
Move the files to
$OHS_HOME/htdocs/
For example you have a file called
maintenance.html

Next modify the config file for the weblogic mod
nano $OHS_HOME/mod_wl_ohs.conf
within the Webcenter location add


LOCATION STUFF
ErrorPage http://[hostname]/maintenance.html

Now to test the change, restart OHS. (if you’re in clustered mode run with 1 spaces, 1 OHS only for now)
Stop Spaces.
Go to WebCenter home.
New html maintenance page displays.
Restart spaces in WLS console.
Spaces displays correctly.

Ensure you copy the files/change in every OHS if you’re in a clustered deployment.

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You can set up the maintenance page when at the Web server level when the application is down in the App layer. Here is the reference for Oracle HTTP server, same you can do it for any other web server too..!!

You can achieve this by configuring an error page at the WebServer (part of web-tier).

For example, in the case of a Oracle HTTP Server (OHS), you could do the following:

1. Place your maintenance page at /config/OHS//htdocs.

For Example, /config/OHS//htdocs/errorPage500.html

2. Open the OHS httpd.conf located at /config/OHS/ in an editor and search for the string ‘ErrorDocument 403′ which can be seen as commented text. Next to the commented text line, add the below lines for configuring the Error

Pages (500 —> backend server unavailable, 403 —> forbidden request, 404 –> Resource Not available). For the below example, we had 3 html pages errorPage500.html, errorPage403.html and errorPage404.html are deployed in OHS htdocs.

ErrorDocument 500 /errorPage500.html
ErrorDocument 403 /errorPage403.html
ErrorDocument 404 /errorPage404.html

3. Save the changes to the httpd.conf file.

4. Restart OHS server

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Maintenance page for weblogic server –

In Apache httpd.conf file put the below , replace the /console with proper context root and same with the host and port no.


SetHandler weblogic-handler
WebLogicHost 192.168.50.57
WebLogicPort 7001
ErrorPage /maintain.html

Place your customized maintain.html in the Root directory.

Happy learning with Vinay in techartifact….

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Uploading static file (image) in webcenter portal for template

Requirement – I have seen many people asking in OTN forum regarding, how to upload with page template or with skin in webcenter. Today sharing with you all.

In wcp 11.1.1.8 normally you don’t have check box to upload content directory with images, javascript or some static file in portal. If you export some asset in WCP from jdeveloper,
Normally template is uploaded but not image.I will take an example of images in this. I created an custom template with some image for mobile.I want to upload back in WCP using round trip
development.

Normally in old wcp version in shared folder , we have all static files or images.Oracle says about this

Legacy directory in MDS for images and content used by assets, such as, icons, images, and so on.Oracle recommends that you relocate all such artifacts to
your content server and that you use a folder structure on your content server specifically for asset artifacts so that content is easy to identify and move, if required.
If you choose not to move artifacts stored in MDS, your administrator can use the MDS WLST commands exportMetadata/importMetadata to migrate content to and from MDS.

So there are two option

1) – Upload in WCC (Webcenter content) – You can upload these document in wcc with some marking and use in webcenter portal. You can use images in WCP as by my previous article.
Display UCM files in ADF/Webcenter application as images or link

– I uploaded techartifact logo in wcc

WCCCheckIn

– I created custom template and added image in that. Source of image is like below

#{WCAppContext.applicationURL}/content/conn/ucmserver/uuid/dDocName%3aAPPLOGO1

imgeSource

APPLOGO1 – content id of document. Read my previous article

That’s it. In this way you can use images in template or skin.

2) – Upload manually in MDS using exportMetadata/importMetadata command – These command is very helpful in working metadata in weblogic. Read my previous article

While creating assest for WCP in jdeveloper, if you put images in shared folder and in below structure

jdeveloperStructure

Then you can use importMetadata command to import image in MDS. for exmaple

importMetadata(application=’webcenter’, server=’WC_Spaces’,fromLocation=’/home/oracle/temp’,docs=’/**’)

– /home/oracle/temp= On this location there is same folder structure like ‘oracle\webcenter\siteresources\scopedMD\shared\images’ . inside image folder , you can put your all images.
and run it

Steps

– run wlst.sh or wlst.cmd under webcenter installtion location
– connect(‘weblogic’,’pwd’,’t3://:7001′)
– importMetadata(application=’webcenter’, server=’WC_Spaces’,fromLocation=’/home/oracle/temp’,docs=’/**’)

Note:In this case, image source in jdeveloper will point to oracle\webcenter\siteresources\scopedMD\shared\images folder and so on..

Final output of template is as below

phone template

That’s it.. By this way you can upload your images.

Happy Learning with Vinay in techartifact…..

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Create centeric page using ADF Faces

Requirement- To create center page using ADF faces.
Implementation – Well you can also achieve using decorative box and panelStrechtLayout.I am going to show, how you can create centered page using af:panelGroupLayout and af:panelStretchLayout.

Use af:panelStretchLayout -center facet->PanelGroupLayout (Halign as center).You can give size in px or % in top and bottom facet of af:panelStretchLayout

ADF developers are not good in html and css.Atleast not me.Now we should dig in more what is halign and valign.You must have seen this property in panelgroupLayout as below

22

HALIGN -> sets the horizontal alignment of the cells.

VALIGN -> sets the vertical alignment of the cells.

Below picture will make more clear

eee

Source of the page can be

<?xml version='1.0' encoding='UTF-8'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
          xmlns:f="http://java.sun.com/jsf/core"
          xmlns:h="http://java.sun.com/jsf/html"
          xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
  <jsp:directive.page contentType="text/html;charset=UTF-8"/>
  <f:view>
    <af:document id="d1">
      <af:form id="f1">
        <af:panelStretchLayout id="psl1" topHeight="33%" bottomHeight="22%"
                               startWidth="5%" endWidth="5%">
          <f:facet name="bottom"/>
          <f:facet name="center">
          
            <af:panelGroupLayout id="pgl1" layout="vertical" halign="center"
                                 valign="middle">
              <af:panelFormLayout id="pfl1" rows="6" maxColumns="1">
                <f:facet name="footer"/>
                <af:inputText label="Name" id="it1"/>
                <af:inputText label="Last Name" id="it4"/>
                <af:inputText label="Email" id="it5"/>
                <af:inputText label="Phone" id="it3"/>
                <af:inputText label="Blog" id="it2"/>
                <af:commandButton text="Submit" id="cb1"/>
              </af:panelFormLayout>
              
            </af:panelGroupLayout>
          </f:facet>
          <f:facet name="start"/>
          <f:facet name="end"/>
          <f:facet name="top">
            <af:panelGroupLayout id="pgl2"/>
          </f:facet>
        </af:panelStretchLayout>
      </af:form>
    </af:document>
  </f:view>
</jsp:root>

When you run the page ,you will something like this-

fffff

happy learning with Vinay in techartifact…