applications/optimization/src/test/java/org/onap/policy/xacml/pdp/application/optimization/OptimizationPdpApplicationTest.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP
   4  * ================================================================================
   5  * Copyright (C) 2019 AT&T Intellectual Property. 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.xacml.pdp.application.optimization;
  24
  25 import static org.assertj.core.api.Assertions.assertThat;
  26
  27 import com.att.research.xacml.api.Response;
  28
  29 import java.io.File;
  30 import java.io.FileNotFoundException;
  31 import java.io.IOException;
  32 import java.util.Iterator;
  33 import java.util.Properties;
  34 import java.util.ServiceLoader;
  35
  36 import org.apache.commons.lang3.tuple.Pair;
  37 import org.junit.BeforeClass;
  38 import org.junit.ClassRule;
  39 import org.junit.FixMethodOrder;
  40 import org.junit.Test;
  41 import org.junit.rules.TemporaryFolder;
  42 import org.junit.runners.MethodSorters;
  43 import org.onap.policy.common.utils.coder.CoderException;
  44 import org.onap.policy.common.utils.coder.StandardCoder;
  45 import org.onap.policy.common.utils.resources.TextFileUtils;
  46 import org.onap.policy.models.decisions.concepts.DecisionRequest;
  47 import org.onap.policy.models.decisions.concepts.DecisionResponse;
  48 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyTypeIdentifier;
  49 import org.onap.policy.pdp.xacml.application.common.TestUtils;
  50 import org.onap.policy.pdp.xacml.application.common.XacmlApplicationException;
  51 import org.onap.policy.pdp.xacml.application.common.XacmlApplicationServiceProvider;
  52 import org.onap.policy.pdp.xacml.application.common.XacmlPolicyUtils;
  53 import org.slf4j.Logger;
  54 import org.slf4j.LoggerFactory;
  55
  56 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
  57 public class OptimizationPdpApplicationTest {
  58
  59     private static final Logger LOGGER = LoggerFactory.getLogger(OptimizationPdpApplicationTest.class);
  60     private static Properties properties = new Properties();
  61     private static File propertiesFile;
  62     private static XacmlApplicationServiceProvider service;
  63     private static StandardCoder gson = new StandardCoder();
  64     private static DecisionRequest requestAffinity;
  65
  66     @ClassRule
  67     public static final TemporaryFolder policyFolder = new TemporaryFolder();
  68
  69     /**
  70      * Copies the xacml.properties and policies files into
  71      * temporary folder and loads the service provider saving
  72      * instance of provider off for other tests to use.
  73      */
  74     @BeforeClass
  75     public static void setUp() throws Exception {
  76         //
  77         // Load Single Decision Request
  78         //
  79         requestAffinity = gson.decode(
  80                 TextFileUtils
  81                     .getTextFileAsString(
  82                             "../../main/src/test/resources/decisions/decision.optimization.affinity.input.json"),
  83                     DecisionRequest.class);
  84         //
  85         // Setup our temporary folder
  86         //
  87         XacmlPolicyUtils.FileCreator myCreator = (String filename) -> policyFolder.newFile(filename);
  88         propertiesFile = XacmlPolicyUtils.copyXacmlPropertiesContents("src/test/resources/xacml.properties",
  89                 properties, myCreator);
  90         //
  91         // Load service
  92         //
  93         ServiceLoader<XacmlApplicationServiceProvider> applicationLoader =
  94                 ServiceLoader.load(XacmlApplicationServiceProvider.class);
  95         //
  96         // Iterate through Xacml application services and find
  97         // the optimization service. Save it for use throughout
  98         // all the Junit tests.
  99         //
 100         StringBuilder strDump = new StringBuilder("Loaded applications:" + System.lineSeparator());
 101         Iterator<XacmlApplicationServiceProvider> iterator = applicationLoader.iterator();
 102         while (iterator.hasNext()) {
 103             XacmlApplicationServiceProvider application = iterator.next();
 104             //
 105             // Is it our service?
 106             //
 107             if (application instanceof OptimizationPdpApplication) {
 108                 //
 109                 // Should be the first and only one
 110                 //
 111                 assertThat(service).isNull();
 112                 service = application;
 113             }
 114             strDump.append(application.applicationName());
 115             strDump.append(" supports ");
 116             strDump.append(application.supportedPolicyTypes());
 117             strDump.append(System.lineSeparator());
 118         }
 119         LOGGER.debug("{}", strDump);
 120         //
 121         // Tell it to initialize based on the properties file
 122         // we just built for it.
 123         //
 124         service.initialize(propertiesFile.toPath().getParent());
 125     }
 126
 127     @Test
 128     public void test1Basics() {
 129         //
 130         // Make sure there's an application name
 131         //
 132         assertThat(service.applicationName()).isNotEmpty();
 133         //
 134         // Decisions
 135         //
 136         assertThat(service.actionDecisionsSupported().size()).isEqualTo(1);
 137         assertThat(service.actionDecisionsSupported()).contains("optimize");
 138         //
 139         // Ensure it has the supported policy types and
 140         // can support the correct policy types.
 141         //
 142         assertThat(service.canSupportPolicyType(new ToscaPolicyTypeIdentifier(
 143                 "onap.policies.optimization.AffinityPolicy", "1.0.0"))).isTrue();
 144         assertThat(service.canSupportPolicyType(new ToscaPolicyTypeIdentifier(
 145                 "onap.foobar", "1.0.0"))).isFalse();
 146     }
 147
 148     @Test
 149     public void test2NoPolicies() {
 150         //
 151         // Ask for a decision
 152         //
 153         Pair<DecisionResponse, Response> decision = service.makeDecision(requestAffinity);
 154         LOGGER.info("Decision {}", decision.getKey());
 155
 156         assertThat(decision.getKey()).isNotNull();
 157         assertThat(decision.getKey().getPolicies().size()).isEqualTo(0);
 158     }
 159
 160     @Test
 161     public void test3AddOptimizationPolicies() throws CoderException, FileNotFoundException, IOException,
 162         XacmlApplicationException {
 163         //
 164         // Now load the optimization policies
 165         //
 166         TestUtils.loadPolicies("src/test/resources/vCPE.policies.optimization.input.tosca.yaml", service);
 167         //
 168         // Ask for a decision
 169         //
 170         Pair<DecisionResponse, Response> decision = service.makeDecision(requestAffinity);
 171         LOGGER.info("Decision {}", decision.getKey());
 172
 173         assertThat(decision.getKey()).isNotNull();
 174         assertThat(decision.getKey().getPolicies().size()).isEqualTo(1);
 175         //
 176         // Dump it out as Json
 177         //
 178         LOGGER.info(gson.encode(decision.getKey()));
 179     }
 180 }