/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Portions Copyright 2006-2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.loggers;
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import java.util.Calendar;
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import java.util.GregorianCalendar;
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import org.opends.server.util.TimeThread;
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import static org.opends.server.loggers.debug.DebugLogger.debugEnabled;
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import static org.opends.server.loggers.debug.DebugLogger.debugInfo;
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/**
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* This class implements a rotation policy based on fixed
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* day/time of day.
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*/
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public class FixedTimeRotationPolicy implements RotationPolicy
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{
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private static final long NEXT_DAY = 24 * 3600 * 1000;
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private long[] rotationTimes;
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private long nextRotationTime = 0;
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/**
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* Time in HHmm format. Will be calculated as (hourOfDay*100) +
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* minuteOfHour.
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*
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* @param timeOfDays The times at which log rotation should occur.
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*/
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public FixedTimeRotationPolicy(int[] timeOfDays)
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{
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Calendar cal = new GregorianCalendar();
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cal.set( Calendar.MILLISECOND, 0 );
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cal.set( Calendar.SECOND, 0 );
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cal.set( Calendar.MINUTE, 0 );
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cal.set( Calendar.HOUR_OF_DAY, 0 );
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long timeFromStartOfDay = cal.getTime().getTime();
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rotationTimes = new long[timeOfDays.length];
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for(int i = 0; i < timeOfDays.length; i++)
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{
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int hour = timeOfDays[i]/100;
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int min = timeOfDays[i] - hour*100;
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rotationTimes[i] = timeFromStartOfDay + hour*3600*1000 + min*60*1000;
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}
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long currTime = TimeThread.getTime();
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nextRotationTime = getNextRotationTime(currTime, 0);
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}
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/**
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* This method indicates if the log file should be
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* rotated or not.
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*
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* @return true if the file needs to be rotated, false otherwise.
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*/
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public boolean rotateFile()
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{
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long currTime = TimeThread.getTime();
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if (debugEnabled())
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{
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debugInfo("Rotation at fixed time: %d nextRotationTime: %d",
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currTime, nextRotationTime);
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}
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if(currTime > nextRotationTime)
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{
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nextRotationTime = getNextRotationTime(currTime, nextRotationTime);
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if (debugEnabled())
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{
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debugInfo("Setting next rotation to : %d", nextRotationTime);
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}
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return true;
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}
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return false;
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}
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/**
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* Get the next rotation time.
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*
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* @param currTime The current time.
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* @param currRotationTime The time we currently believe should be the next
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* rotation time.
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*
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* @return The time that should be used for the next log file rotation.
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*/
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private long getNextRotationTime(long currTime, long currRotationTime)
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{
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long prevRotationTime = currRotationTime;
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for(int j = 0; j < rotationTimes.length; j++)
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{
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if (currTime < rotationTimes[j])
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{
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currRotationTime = rotationTimes[j];
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break;
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}
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}
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if(currRotationTime == prevRotationTime)
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{
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for(int k = 0; k < rotationTimes.length; k++)
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{
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rotationTimes[k] += NEXT_DAY;
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}
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currRotationTime = rotationTimes[0];
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}
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return currRotationTime;
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}
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}
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