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| * regarding copyright ownership. The ASF licenses this file * |
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| * http://www.apache.org/licenses/LICENSE-2.0 * |
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| * Unless required by applicable law or agreed to in writing, * |
| * software distributed under the License is distributed on an * |
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| * specific language governing permissions and limitations * |
| * under the License. * |
| ****************************************************************/ |
| |
| package org.apache.james.quota.search.scanning; |
| |
| import java.util.Map; |
| import java.util.function.Function; |
| import java.util.function.Predicate; |
| |
| import jakarta.inject.Inject; |
| |
| import org.apache.james.core.Username; |
| import org.apache.james.core.quota.QuotaCountLimit; |
| import org.apache.james.core.quota.QuotaCountUsage; |
| import org.apache.james.core.quota.QuotaSizeLimit; |
| import org.apache.james.core.quota.QuotaSizeUsage; |
| import org.apache.james.mailbox.exception.MailboxException; |
| import org.apache.james.mailbox.model.Quota; |
| import org.apache.james.mailbox.model.QuotaRatio; |
| import org.apache.james.mailbox.model.QuotaRoot; |
| import org.apache.james.mailbox.quota.QuotaManager; |
| import org.apache.james.mailbox.quota.UserQuotaRootResolver; |
| import org.apache.james.quota.search.QuotaClause; |
| |
| import com.google.common.collect.ImmutableMap; |
| |
| public class ClauseConverter { |
| |
| private final UserQuotaRootResolver quotaRootResolver; |
| private final QuotaManager quotaManager; |
| private final Map<Class<? extends QuotaClause>, Function<QuotaClause, Predicate<Username>>> toPredicates; |
| |
| @Inject |
| public ClauseConverter(UserQuotaRootResolver quotaRootResolver, QuotaManager quotaManager) { |
| this.quotaRootResolver = quotaRootResolver; |
| this.quotaManager = quotaManager; |
| this.toPredicates = ImmutableMap.of( |
| QuotaClause.And.class, this::andToPredicate, |
| QuotaClause.LessThan.class, this::lessThanToPredicate, |
| QuotaClause.MoreThan.class, this::moreThanToPredicate, |
| QuotaClause.HasDomain.class, this::hasDomainToPredicate); |
| } |
| |
| public Predicate<Username> andToPredicate(QuotaClause.And and) { |
| return and.getClauses() |
| .stream() |
| .map(this::toPredicate) |
| .reduce((p1, p2) -> (user -> p1.test(user) && p2.test(user))) |
| .orElse(user -> true); |
| } |
| |
| private Predicate<Username> toPredicate(QuotaClause clause) { |
| return toPredicates.get(clause.getClass()) |
| .apply(clause); |
| } |
| |
| private Predicate<Username> moreThanToPredicate(QuotaClause clause) { |
| QuotaClause.MoreThan moreThan = (QuotaClause.MoreThan) clause; |
| return user -> retrieveUserRatio(user) >= moreThan.getQuotaBoundary().getRatio(); |
| } |
| |
| private Predicate<Username> lessThanToPredicate(QuotaClause clause) { |
| QuotaClause.LessThan lessThan = (QuotaClause.LessThan) clause; |
| return user -> retrieveUserRatio(user) <= lessThan.getQuotaBoundary().getRatio(); |
| } |
| |
| private Predicate<Username> hasDomainToPredicate(QuotaClause clause) { |
| QuotaClause.HasDomain hasDomain = (QuotaClause.HasDomain) clause; |
| return user -> user.getDomainPart() |
| .map(hasDomain.getDomain()::equals) |
| .orElse(false); |
| } |
| |
| private Predicate<Username> andToPredicate(QuotaClause clause) { |
| QuotaClause.And and = (QuotaClause.And) clause; |
| return andToPredicate(and); |
| } |
| |
| private double retrieveUserRatio(Username username) { |
| try { |
| QuotaRoot quotaRoot = quotaRootResolver.forMailAddress(username); |
| QuotaManager.Quotas quotas = quotaManager.getQuotas(quotaRoot); |
| Quota<QuotaSizeLimit, QuotaSizeUsage> storageQuota = quotas.getStorageQuota(); |
| Quota<QuotaCountLimit, QuotaCountUsage> messageQuota = quotas.getMessageQuota(); |
| |
| return QuotaRatio.from(storageQuota, messageQuota).max(); |
| } catch (MailboxException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |