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[equinox-dev] How to recognize Categories, Features, Bundles and Products?

Hi all,

I have difficulties with IU analysis. I wonder what determines the type of an IU.

Basically we can analyze following properties:

1) does ID end with ".feature.group" or not?
2) is "org.eclipse.equinox.p2.type.category" set to true?
3) is "org.eclipse.equinox.p2.type.group" set to true?

My guess is that this we could use following algorithm:

        if("true".equalsIgnoreCase(iu.getProperty(IInstallableUnit.PROP_TYPE_CATEGORY))) {
            if("true".equalsIgnoreCase(iu.getProperty(IInstallableUnit.PROP_TYPE_GROUP)))
                return NESTED_CATEGORY;
            else
                return CATEGORY;
        }
        if("true".equalsIgnoreCase(iu.getProperty(IInstallableUnit.PROP_TYPE_GROUP)))
            return PRODUCT;
        if(iu.getId().endsWith(".feature.group"))
            return FEATURE;
        if(iu.isFragment())
            return FRAGMENT;
        if(iu.isBundle())
            return BUNDLE;
        return OTHER;

You may have noticed that I also used two category variants - normal and nested. This is an attempt to handle cases such as http://download.eclipse.org/releases/galileo | General Purpose Tools | PDE/API Tools Environment Descriptions.

The algorithm looks fairly complicated. Is there any standard method for this in p2 code? If not, is my suggestion correct?

Thanks,

Filip

--
Filip Hrbek  |  filip.hrbek@xxxxxxxxxxxxxx  |  +420.777.662642  |  skype: filip.hrbek
CLOUDSMITH  |  Czech Republic

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