Java tutorial
/* * Copyright (c) 2016, WSO2 Inc. (http://www.wso2.org) All Rights Reserved. * * WSO2 Inc. licenses this file 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 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package org.wso2.analytics.esb.util; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.joda.time.DateTime; import org.joda.time.DateTimeConstants; import org.joda.time.DateTimeFieldType; import org.joda.time.Days; import org.joda.time.Hours; import org.joda.time.Minutes; import org.joda.time.Months; import org.joda.time.MutableDateTime; import org.wso2.analytics.esb.bean.TimeRange; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; public class TimeRangeUtils { private static final int INTERVAL = 6; private static final Log log = LogFactory.getLog(TimeRangeUtils.class); private static final SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH.mm.ss"); private TimeRangeUtils() { } public static String getSuitableTimeRangeUnit(long from, long to) { DateTime fromTime = new DateTime(from); DateTime toTime = new DateTime(to); RangeUnit range; if (Months.monthsBetween(fromTime, toTime).getMonths() >= INTERVAL) { range = RangeUnit.MONTH; } else if (Days.daysBetween(fromTime, toTime).getDays() >= INTERVAL) { range = RangeUnit.DAY; } else if (Hours.hoursBetween(fromTime, toTime).getHours() >= INTERVAL) { range = RangeUnit.HOUR; } else if (Minutes.minutesBetween(fromTime, toTime).getMinutes() >= INTERVAL) { range = RangeUnit.MINUTE; } else { range = RangeUnit.SECOND; } return range.name(); } public static int getNoOfSecondForMonthInGivenTimestamp(long timestamp) { DateTime time = new DateTime(timestamp); return time.dayOfMonth().getMaximumValue() * DateTimeConstants.SECONDS_PER_DAY; } public static List<TimeRange> getDateTimeRanges(long from, long to) { List<TimeRange> ranges = new ArrayList<>(10); MutableDateTime fromDate = new MutableDateTime(from); fromDate.set(DateTimeFieldType.millisOfSecond(), 0); MutableDateTime toDate = new MutableDateTime(to); toDate.set(DateTimeFieldType.millisOfSecond(), 0); MutableDateTime tempFromTime = fromDate.copy(); MutableDateTime tempToTime = toDate.copy(); if (log.isDebugEnabled()) { log.debug("Time range: " + formatter.format(fromDate.toDate()) + " -> " + formatter.format(toDate.toDate())); } if (toDate.getMillis() - fromDate.getMillis() < DateTimeConstants.MILLIS_PER_MINUTE) { ranges.add(new TimeRange(RangeUnit.SECOND.name(), new long[] { fromDate.getMillis(), toDate.getMillis() })); } else { if (tempFromTime.getSecondOfMinute() != 0 && (toDate.getMillis() - fromDate.getMillis() > DateTimeConstants.MILLIS_PER_MINUTE)) { tempFromTime = tempFromTime.minuteOfHour().roundCeiling(); ranges.add(new TimeRange(RangeUnit.SECOND.name(), new long[] { fromDate.getMillis(), tempFromTime.getMillis() })); } if (tempFromTime.getMinuteOfHour() != 0 && ((toDate.getMillis() - tempFromTime.getMillis()) >= DateTimeConstants.MILLIS_PER_MINUTE)) { fromDate = tempFromTime.copy(); if (((toDate.getMillis() - tempFromTime.getMillis()) / DateTimeConstants.MILLIS_PER_MINUTE) < 60) { tempFromTime = tempFromTime.minuteOfHour().add( (toDate.getMillis() - tempFromTime.getMillis()) / DateTimeConstants.MILLIS_PER_MINUTE); } else { tempFromTime = tempFromTime.hourOfDay().roundCeiling(); } ranges.add(new TimeRange(RangeUnit.MINUTE.name(), new long[] { fromDate.getMillis(), tempFromTime.getMillis() })); } if (tempFromTime.getHourOfDay() != 0 && ((toDate.getMillis() - tempFromTime.getMillis()) >= DateTimeConstants.MILLIS_PER_HOUR)) { fromDate = tempFromTime.copy(); if (((toDate.getMillis() - tempFromTime.getMillis()) / DateTimeConstants.MILLIS_PER_HOUR) < 24) { tempFromTime = tempFromTime.hourOfDay().add( (toDate.getMillis() - tempFromTime.getMillis()) / DateTimeConstants.MILLIS_PER_HOUR); } else { tempFromTime = tempFromTime.dayOfMonth().roundCeiling(); } ranges.add(new TimeRange(RangeUnit.HOUR.name(), new long[] { fromDate.getMillis(), tempFromTime.getMillis() })); } if (tempFromTime.getDayOfMonth() != 1 && ((toDate.getMillis() - tempFromTime.getMillis()) >= DateTimeConstants.MILLIS_PER_DAY)) { fromDate = tempFromTime.copy(); if ((((toDate.getMillis() - tempFromTime.getMillis()) / DateTimeConstants.MILLIS_PER_DAY)) < tempFromTime.dayOfMonth().getMaximumValue()) { tempFromTime = tempFromTime.dayOfMonth().add(((toDate.getMillis() - tempFromTime.getMillis()) / ((long) DateTimeConstants.MILLIS_PER_DAY))); } else { tempFromTime = tempFromTime.monthOfYear().roundCeiling(); } ranges.add(new TimeRange(RangeUnit.DAY.name(), new long[] { fromDate.getMillis(), tempFromTime.getMillis() })); } if (tempToTime.getSecondOfMinute() != 0 && (tempToTime.getMillis() - tempFromTime.getMillis()) >= DateTimeConstants.MILLIS_PER_SECOND) { toDate = tempToTime.copy(); long remainingSeconds = ((toDate.getMillis() - tempFromTime.getMillis()) % DateTimeConstants.MILLIS_PER_MINUTE) / DateTimeConstants.MILLIS_PER_SECOND; if (remainingSeconds < 60) { tempToTime = tempToTime.secondOfMinute().add(-1 * remainingSeconds); } else { tempToTime = tempToTime.secondOfMinute().roundFloor(); } ranges.add(new TimeRange(RangeUnit.SECOND.name(), new long[] { tempToTime.getMillis(), toDate.getMillis() })); } if (tempToTime.getMinuteOfHour() != 0 && ((tempToTime.getMillis() - tempFromTime.getMillis()) >= DateTimeConstants.MILLIS_PER_MINUTE)) { toDate = tempToTime.copy(); long remainingMinutes = ((toDate.getMillis() - tempFromTime.getMillis()) % DateTimeConstants.MILLIS_PER_HOUR) / DateTimeConstants.MILLIS_PER_MINUTE; if (remainingMinutes < 60) { tempToTime = tempToTime.minuteOfHour().add(-1 * remainingMinutes); } else { tempToTime = tempToTime.hourOfDay().roundFloor(); } ranges.add(new TimeRange(RangeUnit.MINUTE.name(), new long[] { tempToTime.getMillis(), toDate.getMillis() })); } if (tempToTime.getHourOfDay() != 0 && ((tempToTime.getMillis() - tempFromTime.getMillis()) >= DateTimeConstants.MILLIS_PER_HOUR)) { toDate = tempToTime.copy(); long remainingHours = ((toDate.getMillis() - tempFromTime.getMillis()) % DateTimeConstants.MILLIS_PER_DAY) / DateTimeConstants.MILLIS_PER_HOUR; if (remainingHours < 24) { tempToTime = tempToTime.hourOfDay().add(-1 * remainingHours); } else { tempToTime = tempToTime.dayOfMonth().roundFloor(); } ranges.add(new TimeRange(RangeUnit.HOUR.name(), new long[] { tempToTime.getMillis(), toDate.getMillis() })); } if (tempToTime.getDayOfMonth() != 1 && ((tempToTime.getMillis() - tempFromTime.getMillis()) >= DateTimeConstants.MILLIS_PER_DAY)) { toDate = tempToTime.copy(); tempToTime = tempToTime.monthOfYear().roundFloor(); ranges.add(new TimeRange(RangeUnit.DAY.name(), new long[] { tempToTime.getMillis(), toDate.getMillis() })); } if (tempToTime.isAfter(tempFromTime)) { ranges.add(new TimeRange(RangeUnit.MONTH.name(), new long[] { tempFromTime.getMillis(), tempToTime.getMillis() })); } } if (log.isDebugEnabled()) { for (TimeRange timeRange : ranges) { log.debug("Unit: " + timeRange.getUnit() + " Range: " + formatter.format(new Date(timeRange.getRange()[0])) + "(" + timeRange.getRange()[0] + ")->" + formatter.format(new Date(timeRange.getRange()[1])) + "(" + timeRange.getRange()[1] + ")"); } } return ranges; } }