/* Copyright (c) 2011 Danish Maritime Authority
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
package dk.dma.ais.abnormal.analyzer.analysis;
import dk.dma.ais.abnormal.analyzer.AppStatisticsService;
import dk.dma.ais.abnormal.analyzer.behaviour.BehaviourManager;
import dk.dma.ais.abnormal.event.db.EventRepository;
import dk.dma.ais.abnormal.stat.db.StatisticDataRepository;
import dk.dma.ais.abnormal.stat.db.data.SpeedOverGroundStatisticData;
import dk.dma.ais.tracker.eventEmittingTracker.EventEmittingTracker;
import org.apache.commons.configuration.Configuration;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.jmock.Expectations;
import org.jmock.integration.junit4.JUnit4Mockery;
import org.junit.Before;
import org.junit.Test;
import static dk.dma.ais.abnormal.analyzer.config.Configuration.CONFKEY_ANALYSIS_SOG_CELL_SHIPCOUNT_MIN;
import static dk.dma.ais.abnormal.analyzer.config.Configuration.CONFKEY_ANALYSIS_SOG_PD;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
public class SpeedOverGroundAnalysisTest {
private JUnit4Mockery context;
private Configuration configuration;
private EventEmittingTracker trackingService;
private AppStatisticsService statisticsService;
private StatisticDataRepository statisticsRepository;
private EventRepository eventRepository;
private SpeedOverGroundStatisticData statistics;
private BehaviourManager behaviourManager;
@Before
public void prepareTest() {
context = new JUnit4Mockery();
// Mock dependencies
trackingService = context.mock(EventEmittingTracker.class);
statisticsService = context.mock(AppStatisticsService.class);
statisticsRepository = context.mock(StatisticDataRepository.class);
eventRepository = context.mock(EventRepository.class);
behaviourManager = context.mock(BehaviourManager.class);
configuration = new PropertiesConfiguration();
configuration.setProperty(CONFKEY_ANALYSIS_SOG_CELL_SHIPCOUNT_MIN, 1000);
configuration.setProperty(CONFKEY_ANALYSIS_SOG_PD, 0.001);
}
/**
* SOG is never considered abnormal when shipCount is lower than threshold.
*/
@Test
public void neverAbnormalSOGWhenShipCountBelowThreshold() {
// Mock statistics table
statistics = SpeedOverGroundStatisticData.create();
statistics.setValue((short) 0, (short) 0, (short) 0, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 1, (short) 0, (short) 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 1, (short) 1, (short) 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 1, (short) 2, (short) 0, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 0, (short) 0, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 0, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 2, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 3, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 4, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 5, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 4, (short) 0, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 4, (short) 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 4, (short) 2, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 975);
final int sum = statistics.getSumFor(SpeedOverGroundStatisticData.STAT_SHIP_COUNT);
final int n1 = statistics.getValue(2, 4, 2, SpeedOverGroundStatisticData.STAT_SHIP_COUNT);
final int n2 = statistics.getValue(2, 4, 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT);
assertTrue(sum < configuration.getInt(CONFKEY_ANALYSIS_SOG_CELL_SHIPCOUNT_MIN));
assertTrue((float) n1 / (float) sum > 0.01);
assertTrue((float) n2 / (float) sum < 0.01);
context.checking(new Expectations() {{
oneOf(behaviourManager).registerSubscriber(with(any(SpeedOverGroundAnalysis.class)));
}});
final SpeedOverGroundAnalysis analysis = new SpeedOverGroundAnalysis(configuration, statisticsService, statisticsRepository, trackingService, eventRepository, behaviourManager);
context.checking(new Expectations() {{
ignoring(statisticsService).incAnalysisStatistics(with("SpeedOverGroundAnalysis"), with(any(String.class)));
oneOf(statisticsRepository).getStatisticData("SpeedOverGroundStatistic", 123456L); will(returnValue(statistics));
}});
assertFalse(analysis.isAbnormalSpeedOverGround(123456L, 2, 4, 2));
context.checking(new Expectations() {{
ignoring(statisticsService).incAnalysisStatistics(with("SpeedOverGroundAnalysis"), with(any(String.class)));
oneOf(statisticsRepository).getStatisticData("SpeedOverGroundStatistic", 123456L);
will(returnValue(statistics));
}});
assertFalse(analysis.isAbnormalSpeedOverGround(123456L, 2, 4, 1));
}
/**
* SOG is considered abnormal where appropriate when shipCount is above threshold.
*/
@Test
public void abnormalSOGWhenShipCountAboveThreshold() {
// Mock statistics table
statistics = SpeedOverGroundStatisticData.create();
statistics.setValue((short) 0, (short) 0, (short) 0, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 1, (short) 0, (short) 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 1, (short) 1, (short) 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 1, (short) 2, (short) 0, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 0, (short) 0, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 0, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 2, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 3, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 4, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 3, (short) 5, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1000);
statistics.setValue((short) 2, (short) 4, (short) 0, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 4, (short) 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
statistics.setValue((short) 2, (short) 4, (short) 2, SpeedOverGroundStatisticData.STAT_SHIP_COUNT, 1);
final int sum = statistics.getSumFor(SpeedOverGroundStatisticData.STAT_SHIP_COUNT);
final int n1 = statistics.getValue(2, 4, 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT);
final int n2 = statistics.getValue(2, 3, 5, SpeedOverGroundStatisticData.STAT_SHIP_COUNT);
final float pd1 = (float) n1 / (float) sum;
final float pd2 = (float) n2 / (float) sum;
assertTrue(sum > configuration.getInt(CONFKEY_ANALYSIS_SOG_CELL_SHIPCOUNT_MIN));
assertEquals(configuration.getFloat(CONFKEY_ANALYSIS_SOG_PD), 0.001, 1e-6);
assertTrue(pd1 < 0.001);
assertTrue(pd2 > 0.001);
context.checking(new Expectations() {{
oneOf(behaviourManager).registerSubscriber(with(any(SpeedOverGroundAnalysis.class)));
}});
final SpeedOverGroundAnalysis analysis = new SpeedOverGroundAnalysis(configuration, statisticsService, statisticsRepository, trackingService, eventRepository, behaviourManager);
context.checking(new Expectations() {{
ignoring(statisticsService).incAnalysisStatistics(with("SpeedOverGroundAnalysis"), with(any(String.class)));
oneOf(statisticsRepository).getStatisticData("SpeedOverGroundStatistic", 123456L); will(returnValue(statistics));
}});
assertNotNull(statistics.getValue(2, 4, 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT));
assertTrue(analysis.isAbnormalSpeedOverGround(123456L, 2, 4, 1));
context.checking(new Expectations() {{
ignoring(statisticsService).incAnalysisStatistics(with("SpeedOverGroundAnalysis"), with(any(String.class)));
oneOf(statisticsRepository).getStatisticData("SpeedOverGroundStatistic", 123456L); will(returnValue(statistics));
}});
assertNull(statistics.getValue(1, 3, 1, SpeedOverGroundStatisticData.STAT_SHIP_COUNT));
assertTrue(analysis.isAbnormalSpeedOverGround(123456L, 1, 3, 1));
context.checking(new Expectations() {{
ignoring(statisticsService).incAnalysisStatistics(with("SpeedOverGroundAnalysis"), with(any(String.class)));
oneOf(statisticsRepository).getStatisticData("SpeedOverGroundStatistic", 123456L); will(returnValue(statistics));
}});
assertFalse(analysis.isAbnormalSpeedOverGround(123456L, 2, 3, 5));
}
}
