org.haiku.haikudepotserver.dataobjects.PkgUserRatingAggregate.java Source code

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Here is the source code for org.haiku.haikudepotserver.dataobjects.PkgUserRatingAggregate.java

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/*
 * Copyright 2015-2016, Andrew Lindesay
 * Distributed under the terms of the MIT License.
 */

package org.haiku.haikudepotserver.dataobjects;

import com.google.common.base.Preconditions;
import org.apache.cayenne.ObjectContext;
import org.apache.cayenne.query.ObjectSelect;
import org.apache.cayenne.validation.BeanValidationFailure;
import org.apache.cayenne.validation.ValidationResult;
import org.haiku.haikudepotserver.dataobjects.auto._PkgUserRatingAggregate;
import org.haiku.haikudepotserver.support.SingleCollector;

import java.util.List;
import java.util.Optional;

public class PkgUserRatingAggregate extends _PkgUserRatingAggregate {

    public static Optional<PkgUserRatingAggregate> getByPkgAndRepository(ObjectContext context, Pkg pkg,
            Repository repository) {
        return findByPkg(context, pkg).stream().filter(pura -> pura.getRepository().equals(repository))
                .collect(SingleCollector.optional());
    }

    public static List<PkgUserRatingAggregate> findByPkg(ObjectContext context, Pkg pkg) {
        Preconditions.checkArgument(null != context, "the context must be supplied");
        Preconditions.checkArgument(null != pkg,
                "a package is required to identify the pkg user rating aggregates to return");
        return ObjectSelect.query(PkgUserRatingAggregate.class).where(PKG.eq(pkg)).sharedCache()
                .cacheGroup(HaikuDepot.CacheGroup.PKG_USER_RATING_AGGREGATE.name()).select(context);
    }

    @Override
    public void validateForInsert(ValidationResult validationResult) {

        if (null == getDerivedRatingSampleSize()) {
            setDerivedRatingSampleSize(0);
        }

        super.validateForInsert(validationResult);
    }

    @Override
    protected void validateForSave(ValidationResult validationResult) {
        super.validateForSave(validationResult);

        if (null != getDerivedRatingSampleSize()) {
            if (getDerivedRatingSampleSize() <= 0) {
                validationResult
                        .addFailure(new BeanValidationFailure(this, DERIVED_RATING_SAMPLE_SIZE.getName(), "min"));
            }
        }

        if (null != getDerivedRating()) {
            if (getDerivedRating() < 0) {
                validationResult.addFailure(new BeanValidationFailure(this, DERIVED_RATING.getName(), "min"));
            }

            if (getDerivedRating() > 5) {
                validationResult.addFailure(new BeanValidationFailure(this, DERIVED_RATING.getName(), "max"));
            }
        }

    }

}