net.customware.license.support.feature.FeatureRestriction Maven / Gradle / Ivy
package net.customware.license.support.feature;
import de.schlichtherle.license.LicenseContent;
import de.schlichtherle.license.LicenseContentException;
import net.customware.license.support.Restriction;
/**
* This validator will check if the specified feature is present.
*
*
* If the license either does not have a {@link FeatureSet} in it's 'extra'
* value, or the FeatureSet does not have any specific features in it, it is
* assumed that the license will allow all features for the product.
*
*
* In other words, if you wish to lock down to specific features in a product,
* you must specify at least one feature in when generating your
* license.
*
* @author David Peterson
*/
public class FeatureRestriction implements Restriction {
private Feature feature;
public FeatureRestriction( Feature feature ) {
this.feature = feature;
}
public void checkRestriction( Object context, LicenseContent content ) throws LicenseContentException {
Object extra = content.getExtra();
if ( extra instanceof FeatureSet ) {
FeatureSet features = ( FeatureSet ) extra;
if ( features.hasFeatures() && !features.hasFeature( feature ) )
throw new LicenseContentException( "License does permit use of " + feature );
}
}
}