Java tutorial
/* Copyright (C) 2006 NTT DATA Corporation This program is free software; you can redistribute it and/or Modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. */ package com.clustercontrol.maintenance.factory; import java.text.SimpleDateFormat; import java.util.Calendar; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import com.clustercontrol.util.HinemosTime; /** * ??? * * @version 4.0.0 * @since 3.1.0 * */ public abstract class MaintenanceObject { private static Log m_log = LogFactory.getLog(MaintenanceObject.class); public static final String _QUERY_TIMEOUT_KEY = "maintenance.query.timeout"; public static final int _queryTimeoutDefault = 0; public static int _queryTimeout; /** * ? * @param dataRetentionPeriod * @param status * @param ownerRoleId * @return */ public int delete(Integer dataRetentionPeriod, boolean status, String ownerRoleId) { ; int ret; m_log.debug("delete() : dataRetentionPeriod : " + dataRetentionPeriod + ", status : " + status); Long boundary = getDataRetentionBoundary(dataRetentionPeriod); ret = _delete(boundary, status, ownerRoleId); return ret; }; /** * ? * @param keep * @param status * @param ownerRoleId * @return */ abstract protected int _delete(Long boundary, boolean status, String ownerRoleId); /** * ?(dataRetentionPeriod)????00:00:00?epoch()?? * @param dataRetentionPeriod * @return */ private Long getDataRetentionBoundary(int dataRetentionPeriod) { m_log.debug("getDataRetentionBoundary() dataRetentionPeriod : " + dataRetentionPeriod); // ??? Calendar calendar = HinemosTime.getCalendarInstance(); // 0?dataRetentionPeriod???? if (dataRetentionPeriod > 0) { calendar.add(Calendar.DATE, -dataRetentionPeriod); } calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); calendar.set(Calendar.MILLISECOND, 0); Long boundary = calendar.getTimeInMillis(); m_log.debug("getDataRetentionBoundary() : boundary is " + boundary + " (" + new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").format(boundary) + ")"); return boundary; } }