ActiveMQ example source code file (JobSchedulerTest.java)

This example ActiveMQ source code file (JobSchedulerTest.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

bytesequence, count, count, countdownlatch, exception, exception, file, id, io, joblistener, list, string, string, test, test, threading, threads, util

The ActiveMQ JobSchedulerTest.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.assertTrue;
import java.io.File;
import java.util.Calendar;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.apache.activemq.util.IOHelper;
import org.apache.kahadb.util.ByteSequence;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class JobSchedulerTest {

    private JobSchedulerStore store;
    private JobScheduler scheduler;

    @Test
    public void testAddLongStringByteSequence() throws Exception {
        final int COUNT = 10;
        final CountDownLatch latch = new CountDownLatch(COUNT);
        scheduler.addListener(new JobListener() {

            public void scheduledJob(String id, ByteSequence job) {
                latch.countDown();
            }

        });
        for (int i = 0; i < COUNT; i++) {
            String test = new String("test" + i);
            scheduler.schedule("id" + i, new ByteSequence(test.getBytes()), 1000);
        }
        latch.await(5, TimeUnit.SECONDS);
        assertEquals(0,latch.getCount());
    }

    @Test
    public void testAddCronAndByteSequence() throws Exception {

        final CountDownLatch latch = new CountDownLatch(1);
        scheduler.addListener(new JobListener() {

            public void scheduledJob(String id, ByteSequence job) {
                latch.countDown();
            }

        });

        Calendar current = Calendar.getInstance();

        int minutes = current.get(Calendar.MINUTE) + 1;
        int hour = current.get(Calendar.HOUR_OF_DAY);
        int day = current.get(Calendar.DAY_OF_WEEK) - 1;

        String cronTab = String.format("%d %d * * %d", minutes, hour, day);

        String str = new String("test1");
        scheduler.schedule("id:1", new ByteSequence(str.getBytes()), cronTab, 0, 0, 0);

        assertTrue(latch.await(60, TimeUnit.SECONDS));
        assertEquals(0, latch.getCount());
    }

    @Test
    public void testAddLongLongIntStringByteSequence() throws Exception {
        final int COUNT = 10;
        final CountDownLatch latch = new CountDownLatch(COUNT);
        scheduler.addListener(new JobListener() {

            public void scheduledJob(String id, ByteSequence job) {
                latch.countDown();
            }

        });
        long time = 2000;
        for (int i = 0; i < COUNT; i++) {
            String test = new String("test" + i);
            scheduler.schedule("id" + i, new ByteSequence(test.getBytes()), "", time, 10, -1);
        }
        assertTrue(latch.getCount() == COUNT);
        latch.await(3000, TimeUnit.SECONDS);
        assertTrue(latch.getCount() == 0);
    }

    @Test
    public void testAddStopThenDeliver() throws Exception {
        final int COUNT = 10;
        final CountDownLatch latch = new CountDownLatch(COUNT);
        long time =  2000;
        for (int i = 0; i < COUNT; i++) {
            String test = new String("test" + i);
            scheduler.schedule("id" + i, new ByteSequence(test.getBytes()), "", time, 1000, -1);
        }
        File directory = store.getDirectory();
        tearDown();
        startStore(directory);
        scheduler.addListener(new JobListener() {

            public void scheduledJob(String id, ByteSequence job) {
                latch.countDown();
            }

        });
        assertTrue(latch.getCount() == COUNT);
        latch.await(3000, TimeUnit.SECONDS);
        assertTrue(latch.getCount() == 0);
    }

    @Test
    public void testRemoveLong() throws Exception {
        final int COUNT = 10;

        long time = 20000;
        for (int i = 0; i < COUNT; i++) {
            String str = new String("test" + i);
            scheduler.schedule("id" + i, new ByteSequence(str.getBytes()), "", time, 1000, -1);

        }
        int size = scheduler.getNextScheduleJobs().size();
        assertEquals(size, COUNT);
        long removeTime = scheduler.getNextScheduleTime();
        scheduler.remove(removeTime);
        size = scheduler.getNextScheduleJobs().size();
        assertEquals(0, size);
    }

    @Test
    public void testRemoveString() throws Exception {
        final int COUNT = 10;
        final String test = "TESTREMOVE";
        long time = 20000;
        for (int i = 0; i < COUNT; i++) {
            String str = new String("test" + i);
            scheduler.schedule("id" + i, new ByteSequence(str.getBytes()), "", time, 10, -1);
            if (i == COUNT / 2) {
                scheduler.schedule(test, new ByteSequence(test.getBytes()), "", time, 10, -1);
            }
        }

        int size = scheduler.getNextScheduleJobs().size();
        assertEquals(size, COUNT + 1);
        scheduler.remove(test);
        size = scheduler.getNextScheduleJobs().size();
        assertEquals(size, COUNT);
    }

    @Test
    public void testgetAllJobs() throws Exception {
        final int COUNT = 10;
        final String ID = "id:";
        long time =  20000;
        for (int i = 0; i < COUNT; i++) {
            String str = new String("test" + i);
            scheduler.schedule(ID + i, new ByteSequence(str.getBytes()), "", time, 10 + i, -1);
        }
        List<Job> list = scheduler.getAllJobs();

        assertEquals(list.size(), COUNT);
        int count = 0;
        for (Job job : list) {

            assertEquals(job.getJobId(), ID + count);
            count++;
        }
    }

    @Test
    public void testgetAllJobsInRange() throws Exception {
        final int COUNT = 10;
        final String ID = "id:";
        long start = 10000;

        for (int i = 0; i < COUNT; i++) {
            String str = new String("test" + i);

                scheduler.schedule(ID + i, new ByteSequence(str.getBytes()), "", start + (i * 1000), 10000 + i, 0);

        }
        start = System.currentTimeMillis();
        long finish = start + 12000+ (COUNT * 1000);
        List<Job> list = scheduler.getAllJobs(start, finish);

        assertEquals( COUNT,list.size());
        int count = 0;
        for (Job job : list) {

            assertEquals(job.getJobId(), ID + count);
            count++;
        }
    }

    @Test
    public void testRemoveAllJobsInRange() throws Exception {
        final int COUNT = 10;
        final String ID = "id:";
        long start = 10000;

        for (int i = 0; i < COUNT; i++) {
            String str = new String("test" + i);

                scheduler.schedule(ID + i, new ByteSequence(str.getBytes()), "", start + (i * 1000), 10000 + i, 0);

        }
        start = System.currentTimeMillis();
        long finish = start + 12000+ (COUNT * 1000);
        scheduler.removeAllJobs(start, finish);

        assertTrue(scheduler.getAllJobs().isEmpty());
    }

    @Before
    public void setUp() throws Exception {
        File directory = new File("target/test/ScheduledJobsDB");
        IOHelper.mkdirs(directory);
        IOHelper.deleteChildren(directory);
        startStore(directory);

    }

    protected void startStore(File directory) throws Exception {
        store = new JobSchedulerStore();
        store.setDirectory(directory);
        store.start();
        scheduler = store.getJobScheduler("test");
    }

    @After
    public void tearDown() throws Exception {
        store.stop();
    }

}