runtime/jobregistry/src/test/java/org/apache/edgent/test/runtime/jobregistry/JobRegistryTest.java

/*
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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
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specific language governing permissions and limitations
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*/
package org.apache.edgent.test.runtime.jobregistry;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertSame;

import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

import org.apache.edgent.execution.Job;
import org.apache.edgent.execution.services.JobRegistryService;
import org.apache.edgent.execution.services.JobRegistryService.EventType;
import org.apache.edgent.function.BiConsumer;
import org.apache.edgent.runtime.jobregistry.JobRegistry;
import org.junit.Test;

public class JobRegistryTest {

    @Test
    public void testGetJob() {
        JobRegistryService service = new JobRegistry();
        Job job1 = new JobImpl("Job_1");
        Job job2 = new JobImpl("Job_2");
        service.addJob(job1);
        service.addJob(job2);
        
        assertSame(job1, service.getJob("Job_1"));
        assertSame(job2, service.getJob("Job_2"));
    }

    @Test
    public void testAddJob() {
        JobRegistryService service = new JobRegistry();
        
        service.addJob(new JobImpl("Job_1"));
        service.addListener((et, j) ->
            {
                assertEquals(JobRegistryService.EventType.ADD, et);
                assertEquals("Job_1", j.getId());
            });
    }
    
    @Test
    public void testAddJob2() {
        JobRegistryService service = new JobRegistry();
        
        service.addListener((et, j) -> {
                assertEquals(JobRegistryService.EventType.ADD, et);
                assertEquals("Job_1", j.getId());
            });
        service.addJob(new JobImpl("Job_1"));
    }

    @Test
    public void testRemoveJob() {
        JobRegistryService service = new JobRegistry();
        service.addJob(new JobImpl("Job_1"));
        service.addJob(new JobImpl("Job_2"));
        
        service.addListener(new JobHandler(JobRegistryService.EventType.REMOVE));
        service.removeJob("Job_1");
        service.removeJob("Job_2");
    }

    @Test
    public void testUpdateJob() {
        JobRegistryService service = new JobRegistry();
        service.addJob(new JobImpl("Job_1"));
        service.addJob(new JobImpl("Job_2"));
        
        service.addListener(new JobHandler(JobRegistryService.EventType.UPDATE));
        service.updateJob(service.getJob("Job_1"));
        service.updateJob(service.getJob("Job_2"));
    }

    private static class JobHandler implements BiConsumer<JobRegistryService.EventType, Job> {
        private static final long serialVersionUID = 1L;
        private int eventCount = 0;
        private final JobRegistryService.EventType eventType;
        
        JobHandler(JobRegistryService.EventType et) {
            this.eventType = et;
        }

        @Override
        public void accept(EventType et, Job j) {
            eventCount++;
            switch (eventCount) {
            case 1:
            case 2:
                assertEquals(JobRegistryService.EventType.ADD, et);
                break;
            case 3:
                assertEquals(eventType, et);
                assertEquals("Job_1", j.getId());
                break;
            case 4:
                assertEquals(eventType, et);
                assertEquals("Job_2", j.getId());
                break;
            }
        }
    }

    private static class JobImpl implements Job {

        private String id;
        
        JobImpl(String id) {
            this.id = id;
        }

        @Override
        public State getCurrentState() {
            throw new UnsupportedOperationException();
        }

        @Override
        public State getNextState() {
            throw new UnsupportedOperationException();
        }

        @Override
        public void stateChange(Action action) throws IllegalArgumentException {
            throw new UnsupportedOperationException();
        }

        @Override
        public Health getHealth() {
            throw new UnsupportedOperationException();
        }

        @Override
        public String getLastError() {
            throw new UnsupportedOperationException();
        }

        @Override
        public String getName() {
            throw new UnsupportedOperationException();
        }

        @Override
        public String getId() {
            return id;
        }

        @Override
        public void complete() throws ExecutionException, InterruptedException {
            throw new UnsupportedOperationException();
        }

        @Override
        public void complete(long timeout, TimeUnit unit)
                throws ExecutionException, InterruptedException, TimeoutException {
            throw new UnsupportedOperationException();
        }
        
    }
}