services/services-onappf/src/test/java/org/onap/policy/apex/services/onappf/comm/TestPdpStateChangeListener.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2019-2020 Nordix Foundation.
   4  *  Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
   5  *  Modifications Copyright (C) 2020 Bell Canada. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  * SPDX-License-Identifier: Apache-2.0
  20  * ============LICENSE_END=========================================================
  21  */
  22
  23 package org.onap.policy.apex.services.onappf.comm;
  24
  25 import static org.junit.Assert.assertEquals;
  26 import static org.junit.Assert.assertNotNull;
  27 import static org.junit.Assert.assertTrue;
  28
  29 import java.io.ByteArrayOutputStream;
  30 import java.io.FileNotFoundException;
  31 import java.io.IOException;
  32 import java.io.OutputStream;
  33 import java.io.PrintStream;
  34 import java.util.ArrayList;
  35 import java.util.List;
  36 import org.junit.After;
  37 import org.junit.Before;
  38 import org.junit.Test;
  39 import org.onap.policy.apex.service.engine.main.ApexPolicyStatisticsManager;
  40 import org.onap.policy.apex.services.onappf.ApexStarterActivator;
  41 import org.onap.policy.apex.services.onappf.ApexStarterCommandLineArguments;
  42 import org.onap.policy.apex.services.onappf.ApexStarterConstants;
  43 import org.onap.policy.apex.services.onappf.exception.ApexStarterException;
  44 import org.onap.policy.apex.services.onappf.handler.ApexEngineHandler;
  45 import org.onap.policy.apex.services.onappf.parameters.ApexStarterParameterGroup;
  46 import org.onap.policy.apex.services.onappf.parameters.ApexStarterParameterHandler;
  47 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
  48 import org.onap.policy.common.utils.coder.CoderException;
  49 import org.onap.policy.common.utils.services.Registry;
  50 import org.onap.policy.models.pdp.concepts.PdpStateChange;
  51 import org.onap.policy.models.pdp.concepts.PdpStatus;
  52 import org.onap.policy.models.pdp.concepts.PdpUpdate;
  53 import org.onap.policy.models.pdp.enums.PdpState;
  54 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
  55
  56 /**
  57  * Class to perform unit test of {@link PdpStateChangeListener}.
  58  *
  59  * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
  60  */
  61 public class TestPdpStateChangeListener {
  62     private PdpUpdateListener pdpUpdateMessageListener;
  63     private PdpStateChangeListener pdpStateChangeListener;
  64     private static final CommInfrastructure INFRA = CommInfrastructure.NOOP;
  65     private static final String TOPIC = "my-topic";
  66     private ApexStarterActivator activator;
  67     private ApexEngineHandler apexEngineHandler;
  68     private PrintStream stdout = System.out;
  69
  70     /**
  71      * Method for setup before each test.
  72      *
  73      * @throws ApexStarterException if some error occurs while starting up the apex starter
  74      * @throws FileNotFoundException if the file is missing
  75      * @throws IOException if IO exception occurs
  76      */
  77     @Before
  78     public void setUp() throws ApexStarterException, FileNotFoundException, IOException {
  79         pdpUpdateMessageListener = new PdpUpdateListener();
  80         pdpStateChangeListener = new PdpStateChangeListener();
  81         Registry.newRegistry();
  82         final String[] apexStarterConfigParameters = {"-c", "src/test/resources/ApexStarterConfigParametersNoop.json"};
  83         final ApexStarterCommandLineArguments arguments = new ApexStarterCommandLineArguments();
  84         ApexStarterParameterGroup parameterGroup;
  85         // The arguments return a string if there is a message to print and we should
  86         // exit
  87         final String argumentMessage = arguments.parse(apexStarterConfigParameters);
  88         if (argumentMessage != null) {
  89             return;
  90         }
  91         // Validate that the arguments are sane
  92         arguments.validate();
  93
  94         // Read the parameters
  95         parameterGroup = new ApexStarterParameterHandler().getParameters(arguments);
  96
  97         activator = new ApexStarterActivator(parameterGroup);
  98         Registry.register(ApexStarterConstants.REG_APEX_STARTER_ACTIVATOR, activator);
  99         Registry.register(ApexPolicyStatisticsManager.REG_APEX_PDP_POLICY_COUNTER, new ApexPolicyStatisticsManager());
 100         activator.initialize();
 101     }
 102
 103     /**
 104      * Method for cleanup after each test.
 105      *
 106      * @throws Exception if an error occurs
 107      */
 108     @After
 109     public void teardown() throws Exception {
 110         System.setOut(stdout);
 111         apexEngineHandler =
 112             Registry.getOrDefault(ApexStarterConstants.REG_APEX_ENGINE_HANDLER, ApexEngineHandler.class, null);
 113         if (null != apexEngineHandler && apexEngineHandler.isApexEngineRunning()) {
 114             apexEngineHandler.shutdown();
 115         }
 116         // clear the apex starter activator
 117         if (activator != null && activator.isAlive()) {
 118             activator.terminate();
 119         }
 120     }
 121
 122     @Test
 123     public void testPdpStateChangeMessageListener_passivetopassive() {
 124         final PdpStatus pdpStatus = Registry.get(ApexStarterConstants.REG_PDP_STATUS_OBJECT);
 125         pdpUpdateMessageListener.onTopicEvent(INFRA, TOPIC, null,
 126             TestListenerUtils.createPdpUpdateMsg(pdpStatus, new ArrayList<ToscaPolicy>()));
 127         PdpStateChange pdpStateChangeMsg =
 128             TestListenerUtils.createPdpStateChangeMsg(PdpState.PASSIVE, "pdpGroup", "pdpSubgroup", pdpStatus.getName());
 129         pdpStateChangeListener.onTopicEvent(INFRA, TOPIC, null, pdpStateChangeMsg);
 130
 131         assertEquals(pdpStatus.getState(), pdpStateChangeMsg.getState());
 132     }
 133
 134     @Test
 135     public void testPdpStateChangeMessageListener_activetoactive() {
 136         final PdpStatus pdpStatus = Registry.get(ApexStarterConstants.REG_PDP_STATUS_OBJECT);
 137         pdpUpdateMessageListener.onTopicEvent(INFRA, TOPIC, null,
 138             TestListenerUtils.createPdpUpdateMsg(pdpStatus, new ArrayList<ToscaPolicy>()));
 139         pdpStatus.setState(PdpState.ACTIVE);
 140         PdpStateChange pdpStateChangeMsg =
 141             TestListenerUtils.createPdpStateChangeMsg(PdpState.ACTIVE, "pdpGroup", "pdpSubgroup", pdpStatus.getName());
 142         pdpStateChangeListener.onTopicEvent(INFRA, TOPIC, null, pdpStateChangeMsg);
 143
 144         assertEquals(pdpStatus.getState(), pdpStateChangeMsg.getState());
 145     }
 146
 147     @Test
 148     public void testPdpStateChangeMessageListener() throws InterruptedException, CoderException {
 149         OutputStream outContent = new ByteArrayOutputStream();
 150         System.setOut(new PrintStream(outContent));
 151         final PdpStatus pdpStatus = Registry.get(ApexStarterConstants.REG_PDP_STATUS_OBJECT);
 152         pdpUpdateMessageListener.onTopicEvent(INFRA, TOPIC, null,
 153             TestListenerUtils.createPdpUpdateMsg(pdpStatus, new ArrayList<ToscaPolicy>()));
 154         PdpStateChange pdpStateChangeMsg =
 155             TestListenerUtils.createPdpStateChangeMsg(PdpState.ACTIVE, "pdpGroup", "pdpSubgroup", pdpStatus.getName());
 156         pdpStateChangeListener.onTopicEvent(INFRA, TOPIC, null, pdpStateChangeMsg);
 157         assertTrue(outContent.toString().contains("State changed to active. No policies found."));
 158
 159         final ToscaPolicy toscaPolicy =
 160             TestListenerUtils.createToscaPolicy("apex_policy_name", "1.0", "src/test/resources/dummyProperties.json");
 161         final List<ToscaPolicy> toscaPolicies = new ArrayList<ToscaPolicy>();
 162         toscaPolicies.add(toscaPolicy);
 163         final PdpUpdate pdpUpdateMsg = TestListenerUtils.createPdpUpdateMsg(pdpStatus, toscaPolicies);
 164         pdpUpdateMessageListener.onTopicEvent(INFRA, TOPIC, null, pdpUpdateMsg);
 165         assertTrue(outContent.toString().contains("Apex engine started and policies are running."));
 166         assertEquals(PdpState.ACTIVE, pdpStatus.getState());
 167
 168         final ApexPolicyStatisticsManager policyCounterManager = ApexPolicyStatisticsManager.getInstanceFromRegistry();
 169         assertNotNull(policyCounterManager);
 170         assertEquals(policyCounterManager.getPolicyDeployCount(),
 171                 policyCounterManager.getPolicyDeploySuccessCount() + policyCounterManager.getPolicyDeployFailCount());
 172
 173         apexEngineHandler =
 174                 Registry.getOrDefault(ApexStarterConstants.REG_APEX_ENGINE_HANDLER, ApexEngineHandler.class, null);
 175         assertNotNull(apexEngineHandler);
 176         assertTrue(apexEngineHandler.getEngineStats().size() > 0);
 177     }
 178
 179     @Test
 180     public void testPdpStateChangeMessageListener_activetopassive() throws InterruptedException, CoderException {
 181         final PdpStatus pdpStatus = Registry.get(ApexStarterConstants.REG_PDP_STATUS_OBJECT);
 182         final ToscaPolicy toscaPolicy =
 183             TestListenerUtils.createToscaPolicy("apex_policy_name", "1.0", "src/test/resources/dummyProperties.json");
 184         final List<ToscaPolicy> toscaPolicies = new ArrayList<ToscaPolicy>();
 185         toscaPolicies.add(toscaPolicy);
 186         final PdpUpdate pdpUpdateMsg = TestListenerUtils.createPdpUpdateMsg(pdpStatus, toscaPolicies);
 187         pdpUpdateMessageListener.onTopicEvent(INFRA, TOPIC, null, pdpUpdateMsg);
 188         PdpStateChange pdpStateChangeMsg =
 189             TestListenerUtils.createPdpStateChangeMsg(PdpState.ACTIVE, "pdpGroup", "pdpSubgroup", pdpStatus.getName());
 190         pdpStateChangeListener.onTopicEvent(INFRA, TOPIC, null, pdpStateChangeMsg);
 191         pdpStateChangeMsg =
 192             TestListenerUtils.createPdpStateChangeMsg(PdpState.PASSIVE, "pdpGroup", "pdpSubgroup", pdpStatus.getName());
 193         OutputStream outContent = new ByteArrayOutputStream();
 194         System.setOut(new PrintStream(outContent));
 195         pdpStateChangeListener.onTopicEvent(INFRA, TOPIC, null, pdpStateChangeMsg);
 196         final String outString = outContent.toString();
 197         assertTrue(outString.contains("Apex pdp state changed from Active to Passive."));
 198         assertEquals(PdpState.PASSIVE, pdpStatus.getState());
 199     }
 200 }