Hi,
If you are attempting to publish to the Viewer, then you have the required components installed within your Protege. The publishing tab is failing to find the Viewer at the URL showing in the “Essential Viewer” address on the tab.
When the Tomcat (port 8080) is not running, the publishing tab will show the following:
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Rendering repository...
Sending repository snapshot...
Checking for access...
Exception encountered during send
Failed to send snapshot to the Report Service :
No response from the Report Service at this URL.
However, you are seeing "Essential Viewer ReportService could not be found at this URL”, which suggests that Tomcat is running but that the specified Viewer cannot be found deployed in that Tomcat.
When Tomcat (port 8080) is running but that the Viewer cannot be found at the URL, the publishing tab will show the following:
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Rendering repository...
Sending repository snapshot...
Checking for access...
Sending XML snapshot...
Failed to send snapshot to the Report Service :
Essential Viewer ReportService could not be found at this URL.
You are seeing the second case, which means that the publishing tab can see your Tomcat but that either:
a) The Essential Viewer address in the “Essential Viewer Tab” is incorrect.
b) The Viewer web application has not been deployed to Tomcat on port 8080
If you’ve installed everything, out-of-the-box, the URL in the Essential Viewer Tab should read:
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http://localhost:8080/essential_viewer
The “essential_viewer” component of this URL must match the name of the Essential Viewer web application that is deployed in Tomcat. Check that this is the case
With the URL matching the name of the deployed Essential Viewer web application, this suggests that the Viewer web application has not been successfully deployed to Tomcat.
We can test this quickly, by opening a web browser and entering the above URL into the browser (
http://localhost:8080/essential_viewer). If the Viewer is correctly deployed, you will see the Viewer homepage. If not, then the publishing issue is a deployment problem for the Viewer.
To confirm that Viewer has deployed successfully, browse your filesystem to <TOMCAT-INSTALL>/webapps and check that:
a) The file ‘essential_viewer.war’ is present in this folder
b) A folder called ‘essential_viewer’ is present in the webapps folder.
If you can see the file ‘essential_viewer.war’ but not the folder, then Tomcat has failed to deploy the web application. Try restarting Tomcat and it should then deploy the WAR file as part of its startup process.
Let us know how you get on with these
Jonathan
