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From jburwell <>
Subject [GitHub] cloudstack pull request: Quota
Date Tue, 20 Oct 2015 02:10:50 GMT
Github user jburwell commented on a diff in the pull request:
    --- Diff: framework/quota/src/org/apache/cloudstack/quota/dao/
    @@ -0,0 +1,199 @@
    +//Licensed to the Apache Software Foundation (ASF) under one
    +//or more contributor license agreements.  See the NOTICE file
    +//distributed with this work for additional information
    +//regarding copyright ownership.  The ASF licenses this file
    +//to you under the Apache License, Version 2.0 (the
    +//"License"); you may not use this file except in compliance
    +//with the License.  You may obtain a copy of the License at
    +//Unless required by applicable law or agreed to in writing,
    +//software distributed under the License is distributed on an
    +//KIND, either express or implied.  See the License for the
    +//specific language governing permissions and limitations
    +//under the License.
    +package org.apache.cloudstack.quota.dao;
    +import org.apache.cloudstack.quota.vo.QuotaBalanceVO;
    +import org.apache.log4j.Logger;
    +import org.springframework.stereotype.Component;
    +import javax.ejb.Local;
    +import java.math.BigDecimal;
    +import java.util.ArrayList;
    +import java.util.Collections;
    +import java.util.Date;
    +import java.util.List;
    +@Local(value = { QuotaBalanceDao.class })
    +public class QuotaBalanceDaoImpl extends GenericDaoBase<QuotaBalanceVO, Long> implements
QuotaBalanceDao {
    +    private static final Logger s_logger = Logger.getLogger(QuotaBalanceDaoImpl.class.getName());
    +    @SuppressWarnings("deprecation")
    +    @Override
    +    public QuotaBalanceVO findLastBalanceEntry(final Long accountId, final Long domainId,
final Date beforeThis) {
    +        return Transaction.execute(TransactionLegacy.USAGE_DB, new TransactionCallback<QuotaBalanceVO>()
    +            @Override
    +            public QuotaBalanceVO doInTransaction(final TransactionStatus status) {
    +                List<QuotaBalanceVO> quotaBalanceEntries = new ArrayList<>();
    +                Filter filter = new Filter(QuotaBalanceVO.class, "updatedOn", false,
0L, 1L);
    +                SearchCriteria<QuotaBalanceVO> sc = createSearchCriteria();
    +                sc.addAnd("accountId", SearchCriteria.Op.EQ, accountId);
    +                sc.addAnd("domainId", SearchCriteria.Op.EQ, domainId);
    +                sc.addAnd("creditsId", SearchCriteria.Op.EQ, 0);
    +                sc.addAnd("updatedOn", SearchCriteria.Op.LT, beforeThis);
    +                quotaBalanceEntries = search(sc, filter);
    +                return quotaBalanceEntries.size() > 0 ? quotaBalanceEntries.get(0)
: null;
    --- End diff --
    Use ``List.isEmpty()`` rather than checking the ``size`` to determine whether or not a
list is empty.  Also, we should check that ``quotaBalanceEntries`` is not ``null`` before
checking whether or not it is empty.

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