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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. All rights reserved.
* Modifications Copyright (C) 2020 Nordix Foundation.
* ================================================================================
* Licensed 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.service.engine.event;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.List;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.onap.policy.apex.context.parameters.ContextParameterConstants;
import org.onap.policy.apex.context.parameters.SchemaParameters;
import org.onap.policy.apex.model.basicmodel.concepts.ApexException;
import org.onap.policy.apex.model.basicmodel.handling.ApexModelException;
import org.onap.policy.apex.model.basicmodel.handling.ApexModelReader;
import org.onap.policy.apex.model.basicmodel.service.ModelService;
import org.onap.policy.apex.model.policymodel.concepts.AxPolicyModel;
import org.onap.policy.apex.service.engine.event.impl.jsonprotocolplugin.Apex2JsonEventConverter;
import org.onap.policy.apex.service.engine.event.impl.jsonprotocolplugin.JsonEventProtocolParameters;
import org.onap.policy.apex.service.engine.event.testpojos.DummyPojo;
import org.onap.policy.apex.service.engine.event.testpojos.DummyPojoList;
import org.onap.policy.common.parameters.ParameterService;
import org.onap.policy.common.utils.resources.TextFileUtils;
import org.slf4j.ext.XLogger;
import org.slf4j.ext.XLoggerFactory;
/**
* Test JSON Event Handler.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
public class JsonEventHandlerForPojoTest {
private static final XLogger logger = XLoggerFactory.getXLogger(JsonEventHandlerForPojoTest.class);
/**
* Setup event model.
*
* @throws IOException Signals that an I/O exception has occurred.
* @throws ApexModelException the apex model exception
*/
@BeforeClass
public static void setupEventModel() throws IOException, ApexModelException {
final String policyModelString =
TextFileUtils.getTextFileAsString("src/test/resources/policymodels/PojoEventModel.json");
final ApexModelReader<AxPolicyModel> modelReader = new ApexModelReader<AxPolicyModel>(AxPolicyModel.class);
modelReader.setValidateFlag(false);
final AxPolicyModel apexPolicyModel = modelReader.read(new ByteArrayInputStream(policyModelString.getBytes()));
// Set up the models in the model service
apexPolicyModel.register();
}
/**
* Initialize default schema parameters.
*/
@BeforeClass
public static void initializeDefaultSchemaParameters() {
ParameterService.clear();
final SchemaParameters schemaParameters = new SchemaParameters();
schemaParameters.setName(ContextParameterConstants.SCHEMA_GROUP_NAME);
ParameterService.register(schemaParameters);
}
/**
* Teardown default schema parameters.
*/
@AfterClass
public static void teardownDefaultSchemaParameters() {
ParameterService.deregister(ContextParameterConstants.SCHEMA_GROUP_NAME);
ModelService.clear();
}
/**
* Test POJO to apex event and back.
*
* @throws ApexException the apex exception
* @throws IOException on IO exceptions
*/
@Test
public void testJsonPojoToApexEvent() throws ApexException, IOException {
final Apex2JsonEventConverter jsonEventConverter = new Apex2JsonEventConverter();
assertNotNull(jsonEventConverter);
JsonEventProtocolParameters pars = new JsonEventProtocolParameters();
pars.setPojoField("POJO_PAR");
jsonEventConverter.init(pars);
final String apexEventJsonStringIn =
TextFileUtils.getTextFileAsString("src/test/resources/events/TestPojoEvent.json");
logger.debug("input event\n" + apexEventJsonStringIn);
final List<ApexEvent> apexEventList = jsonEventConverter.toApexEvent("PojoEvent", apexEventJsonStringIn);
assertEquals(1, apexEventList.size());
final ApexEvent apexEvent = apexEventList.get(0);
assertNotNull(apexEvent);
logger.debug(apexEvent.toString());
assertEquals("PojoEvent", apexEvent.getName());
assertEquals("0.0.1", apexEvent.getVersion());
assertEquals("org.onap.policy.apex.service.engine.event.testpojos", apexEvent.getNameSpace());
assertEquals("Outside", apexEvent.getSource());
assertEquals("Apex", apexEvent.getTarget());
DummyPojo testPojo = (DummyPojo) apexEvent.get("POJO_PAR");
assertEquals(1, testPojo.getAnInt());
assertEquals(2, testPojo.getAnInteger().intValue());
assertEquals("a string", testPojo.getSomeString());
assertEquals(10, testPojo.getTestSubPojo().getAnInt());
assertEquals(20, testPojo.getTestSubPojo().getAnInteger().intValue());
assertEquals("a sub string", testPojo.getTestSubPojo().getSomeString());
assertEquals(100, testPojo.getTestSubPojo().getTestSubSubPojo().getAnInt());
assertEquals(200, testPojo.getTestSubPojo().getTestSubSubPojo().getAnInteger().intValue());
assertEquals("a sub sub string", testPojo.getTestSubPojo().getTestSubSubPojo().getSomeString());
String eventBackInJson = (String) jsonEventConverter.fromApexEvent(apexEvent);
assertEquals(apexEventJsonStringIn.replaceAll("\\s+", ""), eventBackInJson.replaceAll("\\s+", ""));
}
/**
* Test POJO List to apex event and back.
*
* @throws ApexException the apex exception
* @throws IOException on IO exceptions
*/
@Test
public void testJsonPojoListToApexEvent() throws ApexException, IOException {
final Apex2JsonEventConverter jsonEventConverter = new Apex2JsonEventConverter();
assertNotNull(jsonEventConverter);
JsonEventProtocolParameters pars = new JsonEventProtocolParameters();
pars.setPojoField("POJO_LIST_PAR");
jsonEventConverter.init(pars);
final String apexEventJsonStringIn =
TextFileUtils.getTextFileAsString("src/test/resources/events/TestPojoListEvent.json");
logger.debug("input event\n" + apexEventJsonStringIn);
final List<ApexEvent> apexEventList = jsonEventConverter.toApexEvent("PojoListEvent", apexEventJsonStringIn);
assertEquals(1, apexEventList.size());
final ApexEvent apexEvent = apexEventList.get(0);
assertNotNull(apexEvent);
logger.debug(apexEvent.toString());
assertEquals("PojoListEvent", apexEvent.getName());
assertEquals("0.0.1", apexEvent.getVersion());
assertEquals("org.onap.policy.apex.service.engine.event.testpojos", apexEvent.getNameSpace());
assertEquals("Outside", apexEvent.getSource());
assertEquals("Apex", apexEvent.getTarget());
DummyPojoList testPojoList = (DummyPojoList) apexEvent.get("POJO_LIST_PAR");
for (DummyPojo testPojo : testPojoList.getTestPojoList()) {
assertEquals(1, testPojo.getAnInt());
assertEquals(2, testPojo.getAnInteger().intValue());
assertEquals("a string", testPojo.getSomeString());
assertEquals(10, testPojo.getTestSubPojo().getAnInt());
assertEquals(20, testPojo.getTestSubPojo().getAnInteger().intValue());
assertEquals("a sub string", testPojo.getTestSubPojo().getSomeString());
assertEquals(100, testPojo.getTestSubPojo().getTestSubSubPojo().getAnInt());
assertEquals(200, testPojo.getTestSubPojo().getTestSubSubPojo().getAnInteger().intValue());
assertEquals("a sub sub string", testPojo.getTestSubPojo().getTestSubSubPojo().getSomeString());
}
String eventBackInJson = (String) jsonEventConverter.fromApexEvent(apexEvent);
assertEquals(apexEventJsonStringIn.replaceAll("\\s+", ""), eventBackInJson.replaceAll("\\s+", ""));
}
/**
* Test POJO event with bad configurations.
*
* @throws ApexException the apex exception
* @throws IOException on IO exceptions
*/
@Test
public void testJsonBadPojoApexEvent() throws ApexException, IOException {
final Apex2JsonEventConverter jsonEventConverter = new Apex2JsonEventConverter();
assertNotNull(jsonEventConverter);
JsonEventProtocolParameters pars = new JsonEventProtocolParameters();
pars.setPojoField("BAD_POJO_PAR");
jsonEventConverter.init(pars);
final String apexEventJsonStringIn =
TextFileUtils.getTextFileAsString("src/test/resources/events/TestPojoEvent.json");
logger.debug("input event\n" + apexEventJsonStringIn);
assertThatThrownBy(() -> jsonEventConverter.toApexEvent("PojoEvent", apexEventJsonStringIn))
.hasMessageStartingWith("Failed to unmarshal JSON event")
.getCause().hasMessageStartingWith("error parsing PojoEvent:0.0.1 event from Json. "
+ "Field BAD_POJO_PAR not found on POJO event definition.");
pars.setPojoField("POJO_PAR");
assertThatThrownBy(() -> jsonEventConverter.toApexEvent("PojoNoFieldEvent", apexEventJsonStringIn))
.hasMessageStartingWith("Failed to unmarshal JSON event")
.getCause().hasMessageStartingWith("error parsing PojoNoFieldEvent:0.0.1 "
+ "event from Json, Field POJO_PAR not found, no fields defined on event.");
assertThatThrownBy(() -> jsonEventConverter.toApexEvent("PojoTooManyFieldsEvent", apexEventJsonStringIn))
.hasMessageStartingWith("Failed to unmarshal JSON event")
.getCause().hasMessageStartingWith("error parsing PojoTooManyFieldsEvent:0.0.1"
+ " event from Json, Field POJO_PAR, one and only one field may be defined on a "
+ "POJO event definition.");
}
}
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