[news.eclipse.platform] Re: how to read the extensions registry outside

["Rashmy" <appanera@xxxxxxx>]

Hi Paul,
I had found a similar code you mentioned in eclipsezone website. But it did 
not work for me. Then I tried what you mentioned below, still I have an 
issue.

Here is what I did -
I have a plugin called "com.mycompany.base.ui". This contains the below 
plugin.xml file-
<plugin>
   <extension-point id="testcontributor" name="%ExtPoint.testcontributor" 
schema="schema/testcontributor.exsd"/>
   <extension
         id="MyDataProjectNature"
         name="%MyDataProjectNature.name"
         point="org.eclipse.core.resources.natures">
      <runtime>
         <run
               class="com.mycompany.base.ui.project.MyDataProjectNature">
         </run>
      </runtime>
   </extension>
</plugin>

Here is the code I had to load the above xml file to the registry-

RegistryStrategy stratergy = new RegistryStrategy(null, null);
IExtensionRegistry registry = new ExtensionRegistry(stratergy, masterToken, 
null);
IContributor contrib = 
ContributorFactorySimple.createContributor("com.mycompany.base.ui");
String path = "D:\com.mycompany.base.ui\plugin.xml";
InputStream is = new FileInputStream(path);
registry.addContribution( is, contrib, false, null, null, null );

I get the error -
Error:  Could not parse XML contribution for "com.mycompany.base.ui/". Any 
contributed extensions and extension points will be ignored.

But when I tried the below test case it worked. I think it is because the 
plugin ID "RegistryTest" is in the XML file while the 3.2 plugin.xml that I 
have does not have the plugin ID. This is now in the MANIFEST.MF file.

String xmlContribution = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" + 
//$NON-NLS-1$
"<plugin id=\"RegistryTest\" version=\"1.0.0\">" + //$NON-NLS-1$
"<extension-point id=\"point1\" name=\"Test extension point\" 
schema=\"schema/schema.exsd\"/>" + //$NON-NLS-1$
"<extension point=\"point1\" id=\"extension1\">" + //$NON-NLS-1$
"</extension></plugin>";

IContributor contrib = 
ContributorFactorySimple.createContributor("RegistryTest");
RegistryStrategy stratergy = new RegistryStrategy(null, null);
IExtensionRegistry registry = new ExtensionRegistry(stratergy,masterToken, 
null);
InputStream is = new ByteArrayInputStream(xmlContribution.getBytes());
registry.addContribution( is, contrib, false, null, null, null );

Is there anything else I have to do to get my plugin.xml file working?

Thanks.


"Paul Webster" <pwebster@xxxxxxxxxx> wrote in message 
news:faf166$555$1@xxxxxxxxxxxxxxxxxxxx
> Rashmy wrote:
>> I found examples in the below two plugins for the creation of my own 
>> ExtensionsRegsitry outside of the Eclipse IDE
>> org.eclipse.equinox.test.internal.standalone
>> org.eclipse.core.tests.internal.registry.simple
>>
>> But both these require me to pass an IContributor that is defined in 
>> core.runtime.
>
> No, it's in the org.eclipse.core.runtime package but it is actually 
> defined in the equinox.registry bundle.  ContributorFactorySimple is also 
> in the equinox.registry bundle.
>
> Also, check in the thread titled "Using Extension Registry without OSGi" 
> in eclipse.technology.equinox.  It looks like you don't even need the 
> org.eclipse.osgi bundle, but can reduce the size needed by using the 
> supplemental one.
>
> It can be done completely with the 3 jars mentioned in this thread and a 
> java app:
>
> masterToken = new Object();
> registry = RegistryFactory.createRegistry(new RegistryStrategy(null, 
> null), masterToken, null);
>
> Then for each plugin.xml you need to check:
>
> InputStream pluginXmlInput = ...;
> String pluginXmlId = ...;
> ResourceBundle pluginXmlResources = null; // or dig out the correct one
> registry.addContribution(pluginXmlInput, 
> ContributorFactorySimple.createContributor(pluginXmlId), false, 
> pluginXmlId, pluginXmlResources, masterToken);
>
> Later,
> PW
>
>
> -- 
> Paul Webster
> http://wiki.eclipse.org/Platform_Command_Framework
> http://wiki.eclipse.org/Command_Core_Expressions
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