engine/schema/src/main/java/com/cloud/vm/dao/VmStatsDaoImpl.java

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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
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package com.cloud.vm.dao;

import java.util.Date;
import java.util.List;

import javax.annotation.PostConstruct;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.stereotype.Component;

import com.cloud.utils.db.Filter;
import com.cloud.utils.db.GenericDaoBase;
import com.cloud.utils.db.SearchBuilder;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.db.SearchCriteria.Op;
import com.cloud.vm.VmStatsVO;

@Component
public class VmStatsDaoImpl extends GenericDaoBase<VmStatsVO, Long> implements VmStatsDao {

    protected Logger logger = LogManager.getLogger(getClass());

    protected SearchBuilder<VmStatsVO> vmIdSearch;
    protected SearchBuilder<VmStatsVO> vmIdTimestampGreaterThanEqualSearch;
    protected SearchBuilder<VmStatsVO> vmIdTimestampLessThanEqualSearch;
    protected SearchBuilder<VmStatsVO> vmIdTimestampBetweenSearch;
    protected SearchBuilder<VmStatsVO> timestampSearch;

    @PostConstruct
    protected void init() {
        vmIdSearch = createSearchBuilder();
        vmIdSearch.and("vmId", vmIdSearch.entity().getVmId(), Op.EQ);
        vmIdSearch.done();

        vmIdTimestampGreaterThanEqualSearch = createSearchBuilder();
        vmIdTimestampGreaterThanEqualSearch.and("vmId", vmIdTimestampGreaterThanEqualSearch.entity().getVmId(), Op.EQ);
        vmIdTimestampGreaterThanEqualSearch.and("timestamp", vmIdTimestampGreaterThanEqualSearch.entity().getTimestamp(), Op.GTEQ);
        vmIdTimestampGreaterThanEqualSearch.done();

        vmIdTimestampLessThanEqualSearch = createSearchBuilder();
        vmIdTimestampLessThanEqualSearch.and("vmId", vmIdTimestampLessThanEqualSearch.entity().getVmId(), Op.EQ);
        vmIdTimestampLessThanEqualSearch.and("timestamp", vmIdTimestampLessThanEqualSearch.entity().getTimestamp(), Op.LTEQ);
        vmIdTimestampLessThanEqualSearch.done();

        vmIdTimestampBetweenSearch = createSearchBuilder();
        vmIdTimestampBetweenSearch.and("vmId", vmIdTimestampBetweenSearch.entity().getVmId(), Op.EQ);
        vmIdTimestampBetweenSearch.and("timestamp", vmIdTimestampBetweenSearch.entity().getTimestamp(), Op.BETWEEN);
        vmIdTimestampBetweenSearch.done();

        timestampSearch = createSearchBuilder();
        timestampSearch.and("timestamp", timestampSearch.entity().getTimestamp(), Op.LT);
        timestampSearch.done();

    }

    @Override
    public List<VmStatsVO> findByVmId(long vmId) {
        SearchCriteria<VmStatsVO> sc = vmIdSearch.create();
        sc.setParameters("vmId", vmId);
        return listBy(sc);
    }

    @Override
    public List<VmStatsVO> findByVmIdOrderByTimestampDesc(long vmId) {
        SearchCriteria<VmStatsVO> sc = vmIdSearch.create();
        sc.setParameters("vmId", vmId);
        Filter orderByFilter = new Filter(VmStatsVO.class, "timestamp", false, null, null);
        return search(sc, orderByFilter, null, false);
    }

    @Override
    public List<VmStatsVO> findByVmIdAndTimestampGreaterThanEqual(long vmId, Date time) {
        SearchCriteria<VmStatsVO> sc = vmIdTimestampGreaterThanEqualSearch.create();
        sc.setParameters("vmId", vmId);
        sc.setParameters("timestamp", time);
        return listBy(sc);
    }

    @Override
    public List<VmStatsVO> findByVmIdAndTimestampLessThanEqual(long vmId, Date time) {
        SearchCriteria<VmStatsVO> sc = vmIdTimestampLessThanEqualSearch.create();
        sc.setParameters("vmId", vmId);
        sc.setParameters("timestamp", time);
        return listBy(sc);
    }

    @Override
    public List<VmStatsVO> findByVmIdAndTimestampBetween(long vmId, Date startTime, Date endTime) {
        SearchCriteria<VmStatsVO> sc = vmIdTimestampBetweenSearch.create();
        sc.setParameters("vmId", vmId);
        sc.setParameters("timestamp", startTime, endTime);
        return listBy(sc);
    }

    @Override
    public void removeAllByVmId(long vmId) {
        SearchCriteria<VmStatsVO> sc = vmIdSearch.create();
        sc.setParameters("vmId", vmId);
        expunge(sc);
    }

    @Override
    public void removeAllByTimestampLessThan(Date limitDate, long limitPerQuery) {
        SearchCriteria<VmStatsVO> sc = timestampSearch.create();
        sc.setParameters("timestamp", limitDate);

        logger.debug(String.format("Starting to remove all vm_stats rows older than [%s].", limitDate));

        long totalRemoved = batchExpunge(sc, limitPerQuery);

        logger.info(String.format("Removed a total of [%s] vm_stats rows older than [%s].", totalRemoved, limitDate));
    }

}