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87 lines
3.1 KiB
Java
87 lines
3.1 KiB
Java
/**
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* Copyright (C) 2010 Cloud.com, Inc. All rights reserved.
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*
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* This software is licensed under the GNU General Public License v3 or later.
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*
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* It is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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package com.cloud.upgrade.dao;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.util.List;
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import java.util.Map;
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import javax.ejb.Local;
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import javax.naming.ConfigurationException;
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import com.cloud.upgrade.dao.VersionVO.Step;
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import com.cloud.utils.db.DB;
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import com.cloud.utils.db.Filter;
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import com.cloud.utils.db.GenericDaoBase;
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import com.cloud.utils.db.GenericSearchBuilder;
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import com.cloud.utils.db.SearchCriteria;
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import com.cloud.utils.db.SearchCriteria.Func;
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import com.cloud.utils.db.SearchCriteria.Op;
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import com.cloud.utils.db.Transaction;
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import com.cloud.utils.exception.CloudRuntimeException;
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@Local(value=VersionDao.class)
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public class VersionDaoImpl extends GenericDaoBase<VersionVO, String> implements VersionDao {
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final GenericSearchBuilder<VersionVO, String> CurrentVersionSearch;
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protected VersionDaoImpl() {
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super();
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CurrentVersionSearch = createSearchBuilder(String.class);
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CurrentVersionSearch.select(null, Func.FIRST, CurrentVersionSearch.entity().getVersion());
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CurrentVersionSearch.and("step", CurrentVersionSearch.entity().getStep(), Op.EQ);
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}
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@DB
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protected String getCurrentVersion() {
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Transaction txn = Transaction.currentTxn();
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try {
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Connection conn = txn.getConnection();
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PreparedStatement pstmt = conn.prepareStatement("SHOW TABLES LIKE 'VERSION'");
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ResultSet rs = pstmt.executeQuery();
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if (rs.getRow() == 0) {
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return "2.1.7";
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}
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pstmt.close();
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rs.close();
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} catch (SQLException e) {
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throw new CloudRuntimeException("Unable to get the current version", e);
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}
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SearchCriteria<String> sc = CurrentVersionSearch.create();
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sc.setParameters("step", Step.Complete);
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Filter filter = new Filter(VersionVO.class, "updated", true, 0l, 1l);
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List<String> vers = customSearch(sc, filter);
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return vers.get(0);
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}
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@Override
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public boolean configure(String name, Map<String, Object> params) throws ConfigurationException {
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super.configure(name, params);
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return true;
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}
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}
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