net.customware.license.support.ValidatingLicenseManager Maven / Gradle / Ivy

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package net.customware.license.support;

import java.util.Collection;

import de.schlichtherle.license.LicenseContent;
import de.schlichtherle.license.LicenseContentException;
import de.schlichtherle.license.LicenseNotary;
import de.schlichtherle.license.LicenseParam;

public class ValidatingLicenseManager extends BundledLicenseManager {
    public ValidatingLicenseManager() {
        super();
    }

    public ValidatingLicenseManager( ValidatingLicenseParam licenseParam ) {
        super( licenseParam );
    }

    public ValidatingLicenseManager( ClassLoader classLoader ) {
        super( classLoader );
    }

    public ValidatingLicenseManager( ValidatingLicenseParam licenseParam, ClassLoader classLoader ) {
        super( licenseParam, classLoader );
    }

    @Override protected synchronized LicenseContent verify( LicenseNotary notary ) throws Exception {
        Collection exemptions = getValidatingLicenseParam().getExemptions();
        Object context = getValidatingLicenseParam().getContext();
        for ( Exemption e : exemptions )
            if ( e.isExempt( context ) )
                return null;

        return super.verify( notary );
    }

    @Override protected synchronized void validate( LicenseContent content ) throws LicenseContentException {
        super.validate( content );

        ValidatingLicenseParam licenseParam = getValidatingLicenseParam();
        if ( licenseParam != null ) {
            Object context = licenseParam.getContext();
            Collection restrictions = licenseParam.getRestrictions();
            for ( Restriction r : restrictions ) {
                r.checkRestriction( context, content );
            }
        }
    }

    private ValidatingLicenseParam getValidatingLicenseParam() {
        LicenseParam lp = getLicenseParam();
        if ( lp instanceof ValidatingLicenseParam ) {
            return ( ValidatingLicenseParam ) lp;
        }
        return null;
    }

}