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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2018 Ericsson. All rights reserved.
* Modifications Copyright (C) 2022 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.distribution.reception.handling;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.junit.jupiter.api.Test;
import org.onap.policy.common.parameters.ParameterService;
import org.onap.policy.distribution.forwarding.PolicyForwarder;
import org.onap.policy.distribution.forwarding.parameters.PolicyForwarderParameters;
import org.onap.policy.distribution.model.PolicyInput;
import org.onap.policy.distribution.reception.decoding.PluginInitializationException;
import org.onap.policy.distribution.reception.decoding.PolicyDecoder;
import org.onap.policy.distribution.reception.decoding.PolicyDecodingException;
import org.onap.policy.distribution.reception.parameters.PluginHandlerParameters;
import org.onap.policy.distribution.reception.parameters.PolicyDecoderParameters;
import org.onap.policy.models.tosca.authorative.concepts.ToscaEntity;
/**
* Class to perform unit test of AbstractReceptionHandler.
*
* @author Ram Krishna Verma (ram.krishna.verma@ericsson.com)
*/
class AbstractReceptionHandlerTest {
private static final String DISTRIBUTION_GROUP = "DummyDistributionGroup";
private static final String DECODER_TYPE = "DummyDecoder";
private static final String DECODER_CLASS_NAME = "org.onap.policy.distribution.reception.handling.DummyDecoder";
private static final String DECODER_KEY = "DummyDecoderKey";
private static final String FORWARDER_KEY = "DummyForwarderKey";
private static final String FORWARDER_TYPE = "DummyForwarder";
private static final String FORWARDER_CLASS_NAME =
"org.onap.policy.distribution.reception.handling.DummyPolicyForwarder";
private static final String FORWARDER_CONFIGURATION_PARAMETERS = "DummyConfiguration";
private static final String DECODER_CONFIGURATION_PARAMETERS = "DummyDecoderConfiguration";
@Test
void testInputReceived() throws PolicyDecodingException, NoSuchFieldException, SecurityException,
IllegalArgumentException, IllegalAccessException, PluginInitializationException {
final var handler = new DummyReceptionHandler();
final var generatedPolicy1 = new DummyPolicy1();
final var generatedPolicy2 = new DummyPolicy2();
final var policyDecoder1 =
new DummyDecoder(true, Collections.singletonList(generatedPolicy1));
final var policyDecoder2 =
new DummyDecoder(true, Collections.singletonList(generatedPolicy2));
final Collection<PolicyDecoder<PolicyInput, ToscaEntity>> policyDecoders = new ArrayList<>();
policyDecoders.add(policyDecoder1);
policyDecoders.add(policyDecoder2);
final var policyForwarder1 = new DummyPolicyForwarder();
final var policyForwarder2 = new DummyPolicyForwarder();
final Collection<PolicyForwarder> policyForwarders = new ArrayList<>();
policyForwarders.add(policyForwarder1);
policyForwarders.add(policyForwarder2);
setUpPlugins(handler, policyDecoders, policyForwarders);
handler.inputReceived(new DummyPolicyInput());
assertEquals(2, policyForwarder1.getNumberOfPoliciesReceived());
assertTrue(policyForwarder1.receivedPolicy(generatedPolicy1));
assertTrue(policyForwarder1.receivedPolicy(generatedPolicy2));
assertEquals(2, policyForwarder2.getNumberOfPoliciesReceived());
assertTrue(policyForwarder2.receivedPolicy(generatedPolicy1));
assertTrue(policyForwarder2.receivedPolicy(generatedPolicy2));
}
@Test
void testInputReceivedNoSupportingDecoder() throws NoSuchFieldException,
SecurityException, IllegalArgumentException, IllegalAccessException, PluginInitializationException {
final var handler = new DummyReceptionHandler();
final var policyDecoder = new DummyDecoder(false, Collections.emptyList());
final var policyForwarder = new DummyPolicyForwarder();
setUpPlugins(handler, Collections.singleton(policyDecoder), Collections.singleton(policyForwarder));
var policyInput = new DummyPolicyInput();
assertThrows(PolicyDecodingException.class, () -> handler.inputReceived(policyInput));
}
@Test
void testInputReceivedNoDecoder() throws NoSuchFieldException, SecurityException,
IllegalArgumentException, IllegalAccessException, PluginInitializationException {
final var handler = new DummyReceptionHandler();
final var policyForwarder = new DummyPolicyForwarder();
setUpPlugins(handler, Collections.emptySet(), Collections.singleton(policyForwarder));
var policyInput = new DummyPolicyInput();
assertThrows(PolicyDecodingException.class, () -> handler.inputReceived(policyInput));
}
static class DummyPolicyInput implements PolicyInput {
}
static class DummyPolicy1 extends ToscaEntity {
@Override
public String getName() {
return null;
}
}
static class DummyPolicy2 extends ToscaEntity {
@Override
public String getName() {
return null;
}
}
private void setUpPlugins(final AbstractReceptionHandler receptionHandler,
final Collection<PolicyDecoder<PolicyInput, ToscaEntity>> decoders,
final Collection<PolicyForwarder> forwarders) throws NoSuchFieldException, SecurityException,
IllegalArgumentException, IllegalAccessException, PluginInitializationException {
final var pluginParameters = getPluginHandlerParameters();
pluginParameters.setName(DISTRIBUTION_GROUP);
ParameterService.register(pluginParameters);
final var pluginHandler = new PluginHandler(pluginParameters.getName());
final var decodersField = pluginHandler.getClass().getDeclaredField("policyDecoders");
decodersField.setAccessible(true);
decodersField.set(pluginHandler, decoders);
final var forwardersField = pluginHandler.getClass().getDeclaredField("policyForwarders");
forwardersField.setAccessible(true);
forwardersField.set(pluginHandler, forwarders);
final var pluginHandlerField = AbstractReceptionHandler.class.getDeclaredField("pluginHandler");
pluginHandlerField.setAccessible(true);
pluginHandlerField.set(receptionHandler, pluginHandler);
ParameterService.deregister(pluginParameters.getName());
}
private Map<String, PolicyDecoderParameters> getPolicyDecoders() {
final Map<String, PolicyDecoderParameters> policyDecoders = new HashMap<>();
final var pDParameters =
new PolicyDecoderParameters(DECODER_TYPE, DECODER_CLASS_NAME, DECODER_CONFIGURATION_PARAMETERS);
policyDecoders.put(DECODER_KEY, pDParameters);
return policyDecoders;
}
private Map<String, PolicyForwarderParameters> getPolicyForwarders() {
final Map<String, PolicyForwarderParameters> policyForwarders = new HashMap<>();
final var pFParameters =
new PolicyForwarderParameters(FORWARDER_TYPE, FORWARDER_CLASS_NAME, FORWARDER_CONFIGURATION_PARAMETERS);
policyForwarders.put(FORWARDER_KEY, pFParameters);
return policyForwarders;
}
private PluginHandlerParameters getPluginHandlerParameters() {
final var policyDecoders = getPolicyDecoders();
final var policyForwarders = getPolicyForwarders();
return new PluginHandlerParameters(policyDecoders, policyForwarders);
}
}
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