ActiveMQ example source code file (CronParserTest.java)

This example ActiveMQ source code file (CronParserTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - ActiveMQ tags/keywords

calendar, calendar, exception, list, logger, messageformatexception, messageformatexception, not, should, string, string, test, test, throwable, util

The ActiveMQ CronParserTest.java source code

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.apache.activemq.broker.scheduler;

import static org.junit.Assert.assertEquals;

import static org.junit.Assert.fail;

import java.util.Calendar;
import java.util.List;
import javax.jms.MessageFormatException;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class CronParserTest {

    private static final Logger LOG = LoggerFactory.getLogger(CronParserTest.class);

    @Test
    public void testgetNextTimeDayOfWeek() throws MessageFormatException {

        // using an absolute date so that result will be absolute - Monday 15 Nov 2010
        Calendar current = Calendar.getInstance();
        current.set(2010, Calendar.NOVEMBER, 15, 9, 15, 30);
        LOG.debug("start:" + current.getTime());

        String test = "* * * * 5";
        long next = CronParser.getNextScheduledTime(test, current.getTimeInMillis());

        Calendar result = Calendar.getInstance();
        result.setTimeInMillis(next);
        LOG.debug("next:" + result.getTime());

        assertEquals(0,result.get(Calendar.SECOND));
        assertEquals(0,result.get(Calendar.MINUTE));
        assertEquals(0,result.get(Calendar.HOUR));
        // expecting Friday 19th
        assertEquals(19,result.get(Calendar.DAY_OF_MONTH));
        assertEquals(Calendar.NOVEMBER,result.get(Calendar.MONTH));
        assertEquals(2010,result.get(Calendar.YEAR));
    }

    @Test
    public void testgetNextTimeDayOfWeekVariant() throws MessageFormatException {

        // using an absolute date so that result will be absolute - Monday 7 March 2011
        Calendar current = Calendar.getInstance();
        current.set(2011, Calendar.MARCH, 7, 9, 15, 30);
        LOG.debug("start:" + current.getTime());

        String test = "50 20 * * 5";
        long next = CronParser.getNextScheduledTime(test, current.getTimeInMillis());

        Calendar result = Calendar.getInstance();
        result.setTimeInMillis(next);
        LOG.debug("next:" + result.getTime());

        assertEquals(0,result.get(Calendar.SECOND));
        assertEquals(50,result.get(Calendar.MINUTE));
        assertEquals(20,result.get(Calendar.HOUR_OF_DAY));
        // expecting Friday 11th
        assertEquals(11,result.get(Calendar.DAY_OF_MONTH));
        assertEquals(Calendar.FRIDAY,result.get(Calendar.DAY_OF_WEEK));
        assertEquals(Calendar.MARCH,result.get(Calendar.MONTH));
        assertEquals(2011,result.get(Calendar.YEAR));

        // Match to the day of week, but to late to run, should just a week forward.
        current = Calendar.getInstance();
        current.set(2011, Calendar.MARCH, 11, 22, 0, 30);
        LOG.debug("update:" + current.getTime());

        next = CronParser.getNextScheduledTime(test, current.getTimeInMillis());

        result = Calendar.getInstance();
        result.setTimeInMillis(next);
        LOG.debug("next:" + result.getTime());

        //assertEquals(0,result.get(Calendar.SECOND));
        assertEquals(50,result.get(Calendar.MINUTE));
        assertEquals(20,result.get(Calendar.HOUR_OF_DAY));
        // expecting Friday 18th
        assertEquals(18,result.get(Calendar.DAY_OF_MONTH));
        assertEquals(Calendar.FRIDAY,result.get(Calendar.DAY_OF_WEEK));
        assertEquals(Calendar.MARCH,result.get(Calendar.MONTH));
        assertEquals(2011,result.get(Calendar.YEAR));
    }

    @Test
    public void testgetNextTimeMonthVariant() throws MessageFormatException {

        // using an absolute date so that result will be absolute - Monday 7 March 2011
        Calendar current = Calendar.getInstance();
        current.set(2011, Calendar.MARCH, 7, 9, 15, 30);
        LOG.debug("start:" + current.getTime());

        String test = "0 20 * 4,5 0";
        long next = CronParser.getNextScheduledTime(test, current.getTimeInMillis());

        Calendar result = Calendar.getInstance();
        result.setTimeInMillis(next);
        LOG.debug("next:" + result.getTime());

        assertEquals(0,result.get(Calendar.SECOND));
        assertEquals(0,result.get(Calendar.MINUTE));
        assertEquals(20,result.get(Calendar.HOUR_OF_DAY));
        // expecting Sunday 3rd of April
        assertEquals(Calendar.APRIL,result.get(Calendar.MONTH));
        assertEquals(3,result.get(Calendar.DAY_OF_MONTH));
        assertEquals(Calendar.SUNDAY,result.get(Calendar.DAY_OF_WEEK));
        assertEquals(2011,result.get(Calendar.YEAR));

        current = Calendar.getInstance();
        current.set(2011, Calendar.APRIL, 30, 22, 0, 30);
        LOG.debug("update:" + current.getTime());

        next = CronParser.getNextScheduledTime(test, current.getTimeInMillis());

        result = Calendar.getInstance();
        result.setTimeInMillis(next);
        LOG.debug("next:" + result.getTime());

        assertEquals(0,result.get(Calendar.SECOND));
        assertEquals(0,result.get(Calendar.MINUTE));
        assertEquals(20,result.get(Calendar.HOUR_OF_DAY));
        // expecting Sunday 1st of May
        assertEquals(1,result.get(Calendar.DAY_OF_MONTH));
        assertEquals(Calendar.SUNDAY,result.get(Calendar.DAY_OF_WEEK));
        assertEquals(Calendar.MAY,result.get(Calendar.MONTH));
        assertEquals(2011,result.get(Calendar.YEAR));

        // Move past last time and see if reschedule to next year works.
        current = Calendar.getInstance();
        current.set(2011, Calendar.MAY, 30, 22, 0, 30);
        LOG.debug("update:" + current.getTime());

        next = CronParser.getNextScheduledTime(test, current.getTimeInMillis());

        result = Calendar.getInstance();
        result.setTimeInMillis(next);
        LOG.debug("next:" + result.getTime());

        assertEquals(0,result.get(Calendar.SECOND));
        assertEquals(0,result.get(Calendar.MINUTE));
        assertEquals(20,result.get(Calendar.HOUR_OF_DAY));
        // expecting Sunday 1st of April - 2012
        assertEquals(1,result.get(Calendar.DAY_OF_MONTH));
        assertEquals(Calendar.SUNDAY,result.get(Calendar.DAY_OF_WEEK));
        assertEquals(Calendar.APRIL,result.get(Calendar.MONTH));
        assertEquals(2012,result.get(Calendar.YEAR));
    }

    @Test
    public void testgetNextTimeMonth() throws MessageFormatException {

        // using an absolute date so that result will be absolute - Monday 15 Nov 2010
        Calendar current = Calendar.getInstance();
        current.set(2010, Calendar.NOVEMBER, 15, 9, 15, 30);
        LOG.debug("start:" + current.getTime());

        String test = "* * * 12 *";
        long next = CronParser.getNextScheduledTime(test, current.getTimeInMillis());

        Calendar result = Calendar.getInstance();
        result.setTimeInMillis(next);
        LOG.debug("next:" + result.getTime());

        assertEquals(0,result.get(Calendar.SECOND));
        assertEquals(0,result.get(Calendar.MINUTE));
        assertEquals(0,result.get(Calendar.HOUR_OF_DAY));
        assertEquals(1,result.get(Calendar.DAY_OF_MONTH));
        assertEquals(Calendar.DECEMBER,result.get(Calendar.MONTH));
        assertEquals(2010,result.get(Calendar.YEAR));
    }

    @Test
    public void testgetNextTimeDays() throws MessageFormatException {

        // using an absolute date so that result will be absolute - Monday 15 Nov 2010
        Calendar current = Calendar.getInstance();
        current.set(2010, Calendar.NOVEMBER, 15, 9, 15, 30);
        LOG.debug("start:" + current.getTime());

        String test = "* * 16 * *";
        long next = CronParser.getNextScheduledTime(test, current.getTimeInMillis());

        Calendar result = Calendar.getInstance();
        result.setTimeInMillis(next);
        LOG.debug("next:" + result.getTime());

        assertEquals(0,result.get(Calendar.SECOND));
        assertEquals(0,result.get(Calendar.MINUTE));
        assertEquals(0,result.get(Calendar.HOUR));
        assertEquals(16,result.get(Calendar.DAY_OF_MONTH));
        assertEquals(Calendar.NOVEMBER,result.get(Calendar.MONTH));
        assertEquals(2010,result.get(Calendar.YEAR));
    }

    @Test
    public void testgetNextTimeMinutes() throws MessageFormatException {
        String test = "30 * * * *";
        long current = 20*60*1000;
        Calendar calender = Calendar.getInstance();
        calender.setTimeInMillis(current);
        LOG.debug("start:" + calender.getTime());
        long next = CronParser.getNextScheduledTime(test, current);

        calender.setTimeInMillis(next);
        LOG.debug("next:" + calender.getTime());
        long result = next - current;
        assertEquals(60*10*1000,result);
    }

    @Test
    public void testgetNextTimeHours() throws MessageFormatException {
        String test = "* 1 * * *";

        Calendar calender = Calendar.getInstance();
        calender.set(1972, 2, 2, 17, 10, 0);
        long current = calender.getTimeInMillis();
        long next = CronParser.getNextScheduledTime(test, current);

        calender.setTimeInMillis(next);
        long result = next - current;
        long expected = 60*1000*60*8 + 60 * 1000;
        assertEquals(expected,result);
    }

    @Test
    public void testgetNextTimeHoursZeroMin() throws MessageFormatException {
        String test = "0 1 * * *";

        Calendar calender = Calendar.getInstance();
        calender.set(1972, 2, 2, 17, 10, 0);
        long current = calender.getTimeInMillis();
        long next = CronParser.getNextScheduledTime(test, current);

        calender.setTimeInMillis(next);
        long result = next - current;
        long expected = 60*1000*60*7 + 60*1000*50;
        assertEquals(expected,result);
    }

    @Test
    public void testValidate() {
        try {
            CronParser.validate("30 08 10 06 * ");
            CronParser.validate("* * * * * ");
            CronParser.validate("* * * * 1-6 ");
            CronParser.validate("* * * * 1,2,5 ");
            CronParser.validate("*/10 0-4,8-12 * * 1-2,3-6/2 ");

        } catch (Exception e) {
            fail("Should be valid ");
        }

        try {
            CronParser.validate("61 08 10 06 * ");
            fail("Should not be valid ");
        } catch (Exception e) {
        }
        try {
            CronParser.validate("61 08 06 * ");
            fail("Should not be valid ");
        } catch (Exception e) {
        }
    }

    @Test
    public void testGetNextCommaSeparated() throws MessageFormatException {
        String token = "3,5,7";
        // test minimum values
        int next = CronParser.getNext(createEntry(token, 1, 10), 3);
        assertEquals(2, next);
        next = CronParser.getNext(createEntry(token, 1, 10), 8);
        assertEquals(4, next);
        next = CronParser.getNext(createEntry(token, 1, 10), 1);
        assertEquals(2, next);
    }

    @Test
    public void testGetNextRange() throws MessageFormatException {
        String token = "3-5";
        // test minimum values
        int next = CronParser.getNext(createEntry(token, 1, 10), 3);
        assertEquals(1, next);
        next = CronParser.getNext(createEntry(token, 1, 10), 5);
        assertEquals(7, next);
        next = CronParser.getNext(createEntry(token, 1, 10), 6);
        assertEquals(6, next);
        next = CronParser.getNext(createEntry(token, 1, 10), 1);
        assertEquals(2, next);
    }

    @Test
    public void testGetNextExact() throws MessageFormatException {
        String token = "3";
        int next = CronParser.getNext(createEntry(token, 0, 10), 2);
        assertEquals(1, next);
        next = CronParser.getNext(createEntry(token, 0, 10), 3);
        assertEquals(10, next);
        next = CronParser.getNext(createEntry(token, 0, 10), 1);
        assertEquals(2, next);
    }

    @Test
    public void testTokenize() {
        String test = "*/5 * * * *";
        List<String> list = CronParser.tokenize(test);
        assertEquals(list.size(), 5);

        test = "*/5 * * * * *";
        try {
            list = CronParser.tokenize(test);
            fail("Should have throw an exception");
        } catch (Throwable e) {
        }

        test = "*/5 * * * *";
        try {
            list = CronParser.tokenize(test);
            fail("Should have throw an exception");
        } catch (Throwable e) {
        }

        test = "0 1 2 3 4";
        list = CronParser.tokenize(test);
        assertEquals(list.size(), 5);

        assertEquals(list.get(0), "0");
        assertEquals(list.get(1), "1");
        assertEquals(list.get(2), "2");
        assertEquals(list.get(3), "3");
        assertEquals(list.get(4), "4");
    }

    public void testGetNextScheduledTime() {
        fail("Not yet implemented");
    }

    CronParser.CronEntry createEntry(String str, int start, int end) {
        return new CronParser.CronEntry("test", str, start, end);
    }

}