engine/schema/src/com/cloud/vm/dao/SecondaryStorageVmDaoImpl.java

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// 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
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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package com.cloud.vm.dao;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import javax.ejb.Local;

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

import com.cloud.utils.db.Attribute;
import com.cloud.utils.db.GenericDaoBase;
import com.cloud.utils.db.SearchBuilder;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.db.TransactionLegacy;
import com.cloud.utils.db.UpdateBuilder;
import com.cloud.vm.SecondaryStorageVm;
import com.cloud.vm.SecondaryStorageVmVO;
import com.cloud.vm.VirtualMachine.State;

@Component
@Local(value = {SecondaryStorageVmDao.class})
public class SecondaryStorageVmDaoImpl extends GenericDaoBase<SecondaryStorageVmVO, Long> implements SecondaryStorageVmDao {
    private static final Logger s_logger = Logger.getLogger(SecondaryStorageVmDaoImpl.class);

    protected SearchBuilder<SecondaryStorageVmVO> DataCenterStatusSearch;
    protected SearchBuilder<SecondaryStorageVmVO> StateSearch;
    protected SearchBuilder<SecondaryStorageVmVO> HostSearch;
    protected SearchBuilder<SecondaryStorageVmVO> LastHostSearch;
    protected SearchBuilder<SecondaryStorageVmVO> HostUpSearch;
    protected SearchBuilder<SecondaryStorageVmVO> ZoneSearch;
    protected SearchBuilder<SecondaryStorageVmVO> StateChangeSearch;
    protected SearchBuilder<SecondaryStorageVmVO> InstanceSearch;

    protected final Attribute _updateTimeAttr;

    public SecondaryStorageVmDaoImpl() {
        DataCenterStatusSearch = createSearchBuilder();
        DataCenterStatusSearch.and("dc", DataCenterStatusSearch.entity().getDataCenterId(), SearchCriteria.Op.EQ);
        DataCenterStatusSearch.and("states", DataCenterStatusSearch.entity().getState(), SearchCriteria.Op.IN);
        DataCenterStatusSearch.and("role", DataCenterStatusSearch.entity().getRole(), SearchCriteria.Op.EQ);
        DataCenterStatusSearch.done();

        StateSearch = createSearchBuilder();
        StateSearch.and("states", StateSearch.entity().getState(), SearchCriteria.Op.IN);
        StateSearch.and("role", StateSearch.entity().getRole(), SearchCriteria.Op.EQ);
        StateSearch.done();

        HostSearch = createSearchBuilder();
        HostSearch.and("host", HostSearch.entity().getHostId(), SearchCriteria.Op.EQ);
        HostSearch.and("role", HostSearch.entity().getRole(), SearchCriteria.Op.EQ);
        HostSearch.done();

        InstanceSearch = createSearchBuilder();
        InstanceSearch.and("instanceName", InstanceSearch.entity().getInstanceName(), SearchCriteria.Op.EQ);
        InstanceSearch.done();

        LastHostSearch = createSearchBuilder();
        LastHostSearch.and("lastHost", LastHostSearch.entity().getLastHostId(), SearchCriteria.Op.EQ);
        LastHostSearch.and("state", LastHostSearch.entity().getState(), SearchCriteria.Op.EQ);
        LastHostSearch.and("role", LastHostSearch.entity().getRole(), SearchCriteria.Op.EQ);
        LastHostSearch.done();

        HostUpSearch = createSearchBuilder();
        HostUpSearch.and("host", HostUpSearch.entity().getHostId(), SearchCriteria.Op.EQ);
        HostUpSearch.and("states", HostUpSearch.entity().getState(), SearchCriteria.Op.NIN);
        HostUpSearch.and("role", HostUpSearch.entity().getRole(), SearchCriteria.Op.EQ);
        HostUpSearch.done();

        ZoneSearch = createSearchBuilder();
        ZoneSearch.and("zone", ZoneSearch.entity().getDataCenterId(), SearchCriteria.Op.EQ);
        ZoneSearch.and("role", ZoneSearch.entity().getRole(), SearchCriteria.Op.EQ);
        ZoneSearch.done();

        StateChangeSearch = createSearchBuilder();
        StateChangeSearch.and("id", StateChangeSearch.entity().getId(), SearchCriteria.Op.EQ);
        StateChangeSearch.and("states", StateChangeSearch.entity().getState(), SearchCriteria.Op.EQ);
        StateChangeSearch.and("host", StateChangeSearch.entity().getHostId(), SearchCriteria.Op.EQ);
        StateChangeSearch.and("update", StateChangeSearch.entity().getUpdated(), SearchCriteria.Op.EQ);
        StateChangeSearch.and("role", StateChangeSearch.entity().getUpdated(), SearchCriteria.Op.EQ);
        StateChangeSearch.done();

        _updateTimeAttr = _allAttributes.get("updateTime");
        assert _updateTimeAttr != null : "Couldn't get this updateTime attribute";
    }

    @Override
    public boolean remove(Long id) {
        TransactionLegacy txn = TransactionLegacy.currentTxn();
        txn.start();
        SecondaryStorageVmVO proxy = createForUpdate();
        proxy.setPublicIpAddress(null);
        proxy.setPrivateIpAddress(null);

        UpdateBuilder ub = getUpdateBuilder(proxy);
        ub.set(proxy, "state", State.Destroyed);
        ub.set(proxy, "privateIpAddress", null);
        update(id, ub, proxy);

        boolean result = super.remove(id);
        txn.commit();
        return result;
    }

    @Override
    public List<SecondaryStorageVmVO> getSecStorageVmListInStates(SecondaryStorageVm.Role role, long dataCenterId, State... states) {
        SearchCriteria<SecondaryStorageVmVO> sc = DataCenterStatusSearch.create();
        sc.setParameters("states", (Object[])states);
        sc.setParameters("dc", dataCenterId);
        if (role != null) {
            sc.setParameters("role", role);
        }
        return listBy(sc);
    }

    @Override
    public List<SecondaryStorageVmVO> getSecStorageVmListInStates(SecondaryStorageVm.Role role, State... states) {
        SearchCriteria<SecondaryStorageVmVO> sc = StateSearch.create();
        sc.setParameters("states", (Object[])states);
        if (role != null) {
            sc.setParameters("role", role);
        }

        return listBy(sc);
    }

    @Override
    public List<SecondaryStorageVmVO> listByHostId(SecondaryStorageVm.Role role, long hostId) {
        SearchCriteria<SecondaryStorageVmVO> sc = HostSearch.create();
        sc.setParameters("host", hostId);
        if (role != null) {
            sc.setParameters("role", role);
        }
        return listBy(sc);
    }

    @Override
    public List<SecondaryStorageVmVO> listUpByHostId(SecondaryStorageVm.Role role, long hostId) {
        SearchCriteria<SecondaryStorageVmVO> sc = HostUpSearch.create();
        sc.setParameters("host", hostId);
        sc.setParameters("states", new Object[] {State.Destroyed, State.Stopped, State.Expunging});
        if (role != null) {
            sc.setParameters("role", role);
        }
        return listBy(sc);
    }

    @Override
    public List<Long> getRunningSecStorageVmListByMsid(SecondaryStorageVm.Role role, long msid) {
        List<Long> l = new ArrayList<Long>();
        TransactionLegacy txn = TransactionLegacy.currentTxn();
        ;
        PreparedStatement pstmt = null;
        try {
            String sql;
            if (role == null) {
                sql =
                    "SELECT s.id FROM secondary_storage_vm s, vm_instance v, host h " + "WHERE s.id=v.id AND v.state='Running' AND v.host_id=h.id AND h.mgmt_server_id=?";
            } else {
                sql =
                    "SELECT s.id FROM secondary_storage_vm s, vm_instance v, host h "
                        + "WHERE s.id=v.id AND v.state='Running' AND s.role=? AND v.host_id=h.id AND h.mgmt_server_id=?";
            }

            pstmt = txn.prepareAutoCloseStatement(sql);

            if (role == null) {
                pstmt.setLong(1, msid);
            } else {
                pstmt.setString(1, role.toString());
                pstmt.setLong(2, msid);
            }

            ResultSet rs = pstmt.executeQuery();
            while (rs.next()) {
                l.add(rs.getLong(1));
            }
        } catch (SQLException e) {
            s_logger.debug("Caught SQLException: ", e);
        }
        return l;
    }

    @Override
    public SecondaryStorageVmVO findByInstanceName(String instanceName) {
        SearchCriteria<SecondaryStorageVmVO> sc = InstanceSearch.create();
        sc.setParameters("instanceName", instanceName);
        List<SecondaryStorageVmVO> list = listBy(sc);
        if (list == null || list.size() == 0) {
            return null;
        } else {
            return list.get(0);
        }
    }

    @Override
    public List<SecondaryStorageVmVO> listByZoneId(SecondaryStorageVm.Role role, long zoneId) {
        SearchCriteria<SecondaryStorageVmVO> sc = ZoneSearch.create();
        sc.setParameters("zone", zoneId);
        if (role != null) {
            sc.setParameters("role", role);
        }
        return listBy(sc);
    }

    @Override
    public List<SecondaryStorageVmVO> listByLastHostId(SecondaryStorageVm.Role role, long hostId) {
        SearchCriteria<SecondaryStorageVmVO> sc = LastHostSearch.create();
        sc.setParameters("lastHost", hostId);
        sc.setParameters("state", State.Stopped);
        if (role != null) {
            sc.setParameters("role", role);
        }

        return listBy(sc);
    }

    @Override
    public List<Long> listRunningSecStorageOrderByLoad(SecondaryStorageVm.Role role, long zoneId) {

        List<Long> l = new ArrayList<Long>();
        TransactionLegacy txn = TransactionLegacy.currentTxn();
        ;
        PreparedStatement pstmt = null;
        try {
            String sql;
            if (role == null) {
                sql =
                    "SELECT s.id, count(l.id) as count FROM secondary_storage_vm s INNER JOIN vm_instance v ON s.id=v.id LEFT JOIN cmd_exec_log l ON s.id=l.instance_id WHERE v.state='Running' AND v.data_center_id=? GROUP BY s.id ORDER BY count";
            } else {
                sql =
                    "SELECT s.id, count(l.id) as count FROM secondary_storage_vm s INNER JOIN vm_instance v ON s.id=v.id LEFT JOIN cmd_exec_log l ON s.id=l.instance_id WHERE v.state='Running' AND v.data_center_id=? AND s.role=? GROUP BY s.id ORDER BY count";
            }

            pstmt = txn.prepareAutoCloseStatement(sql);

            if (role == null) {
                pstmt.setLong(1, zoneId);
            } else {
                pstmt.setLong(1, zoneId);
                pstmt.setString(2, role.toString());
            }

            ResultSet rs = pstmt.executeQuery();
            while (rs.next()) {
                l.add(rs.getLong(1));
            }
        } catch (SQLException e) {
            s_logger.error("Unexpected exception ", e);
        }

        return l;
    }
}