dcae-analytics-common/src/test/java/org/openecomp/dcae/apod/analytics/common/service/filter/GenericJsonMessageFilterTest.java

   1 /*
   2  * ===============================LICENSE_START======================================
   3  *  dcae-analytics
   4  * ================================================================================
   5  *    Copyright © 2017 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  *  ============================LICENSE_END===========================================
  19  */
  20
  21 package org.openecomp.dcae.apod.analytics.common.service.filter;
  22
  23 import com.google.common.collect.ImmutableList;
  24 import org.junit.Assert;
  25 import org.junit.Before;
  26 import org.junit.Test;
  27 import org.openecomp.dcae.apod.analytics.common.BaseAnalyticsCommonUnitTest;
  28 import org.openecomp.dcae.apod.analytics.common.service.processor.GenericMessageChainProcessor;
  29
  30 import static org.junit.Assert.assertEquals;
  31
  32 /**
  33  * @author Rajiv Singla . Creation Date: 2/10/2017.
  34  */
  35 public class GenericJsonMessageFilterTest extends BaseAnalyticsCommonUnitTest {
  36
  37     private String jsonMessage;
  38
  39     @Before
  40     public void before() throws Exception {
  41         jsonMessage = fromStream(CEF_MESSAGE_FILE_PATH);
  42
  43     }
  44
  45     @Test
  46     public void testJsonMessageFilterWhenAllFiltersPassed() throws Exception {
  47
  48         final JsonMessageFilterProcessorContext finalMessageProcessorContext =
  49                 processJsonMessageFilterChain(jsonMessage,
  50                         "domainFilter", "$.event.commonEventHeader.domain", "measurementsForVfScaling",
  51                         "eventNameFilter", "$.event.commonEventHeader.eventName", "Mfvs_eNodeB_RANKPI");
  52
  53         assertJsonMessageAssertions(jsonMessage, finalMessageProcessorContext, true, true, 2);
  54
  55     }
  56
  57     @Test
  58     public void testJsonMessageFilterWhenJsonPathValueIsANumber() throws Exception {
  59
  60         final JsonMessageFilterProcessorContext finalMessageProcessorContext =
  61                 processJsonMessageFilterChain(jsonMessage,
  62                         "domainFilter", "$.event.commonEventHeader.sequence", "0",
  63                         "eventNameFilter", "$.event.commonEventHeader.eventName", "Mfvs_eNodeB_RANKPI");
  64
  65         assertJsonMessageAssertions(jsonMessage, finalMessageProcessorContext, true, true, 2);
  66     }
  67
  68     @Test
  69     public void testJsonMessageFilterWhenOneFilterDoesNotMatch() throws Exception {
  70
  71         final JsonMessageFilterProcessorContext finalMessageProcessorContext =
  72                 processJsonMessageFilterChain(jsonMessage,
  73                         "domainFilter", "$.event.commonEventHeader.domain", "xxxxxxxxxxx",
  74                         "functionalRoleFilter", "$.event.commonEventHeader.eventName", "vFirewall");
  75
  76         assertJsonMessageAssertions(jsonMessage, finalMessageProcessorContext, false, false, 1);
  77     }
  78
  79     @Test
  80     public void testJsonMessageFilterWhenJsonPathDoesNotExist() throws Exception {
  81
  82         final JsonMessageFilterProcessorContext finalMessageProcessorContext =
  83                 processJsonMessageFilterChain(jsonMessage,
  84                         "domainFilter", "$.event.commonEventHeader.xxxxxxx", "measurementsForVfScaling",
  85                         "functionalRoleFilter", "$.event.commonEventHeader.eventName", "vFirewall");
  86
  87         assertJsonMessageAssertions(jsonMessage, finalMessageProcessorContext, false, false, 1);
  88     }
  89
  90     @Test
  91     public void testJsonMessageFilterWhenIncomingMessageIsBlank() throws Exception {
  92
  93         final JsonMessageFilterProcessorContext finalMessageProcessorContext =
  94                 processJsonMessageFilterChain("",
  95                         "domainFilter", "$.event.commonEventHeader.domain", "measurementsForVfScaling",
  96                         "functionalRoleFilter", "$.event.commonEventHeader.eventName", "vFirewall");
  97
  98         assertJsonMessageAssertions("", finalMessageProcessorContext, false, null, 1);
  99
 100     }
 101
 102     @Test
 103     public void testJsonMessageFilterWhenIncomingMessageIsNotValidJson() throws Exception {
 104
 105         final JsonMessageFilterProcessorContext finalMessageProcessorContext =
 106                 processJsonMessageFilterChain("invalidJson",
 107                         "domainFilter", "$.event.commonEventHeader.domain", "measurementsForVfScaling",
 108                         "functionalRoleFilter", "$.event.commonEventHeader.eventName", "vFirewall");
 109
 110         assertJsonMessageAssertions("invalidJson", finalMessageProcessorContext, false, null, 1);
 111
 112     }
 113
 114
 115     private static void assertJsonMessageAssertions(
 116             final String jsonMessage, final JsonMessageFilterProcessorContext finalMessageProcessorContext,
 117             final Boolean canProcessingContinueFlag, final Boolean matchedFlag,
 118             final int messageProcessorCount) throws Exception {
 119
 120         assertJson(jsonMessage, finalMessageProcessorContext.getMessage());
 121         Assert.assertEquals(canProcessingContinueFlag, finalMessageProcessorContext.canProcessingContinue());
 122         assertEquals(matchedFlag, finalMessageProcessorContext.getMatched());
 123         Assert.assertEquals(finalMessageProcessorContext.getMessageProcessors().size(), messageProcessorCount);
 124
 125     }
 126
 127
 128     private static JsonMessageFilterProcessorContext processJsonMessageFilterChain(
 129             final String jsonMessage,
 130             final String firstFilterName, final String firstFilterPath, final String firstFilterValue,
 131             final String secondFilterName, final String secondFilterPath, final String secondFilterValue) {
 132
 133         // create processors
 134         final GenericJsonMessageFilter firstFilter = new GenericJsonMessageFilter(firstFilterName, firstFilterPath,
 135                 firstFilterValue);
 136         final GenericJsonMessageFilter secondFilter = new GenericJsonMessageFilter(secondFilterName,
 137                 secondFilterPath, secondFilterValue);
 138
 139         // create initial processor context containing the json message that need to be processed
 140         final JsonMessageFilterProcessorContext initialProcessorContext =
 141                 new JsonMessageFilterProcessorContext(jsonMessage);
 142
 143         // create a generic message chain processor and feed it list of processors and initialProcessor context
 144         final GenericMessageChainProcessor<JsonMessageFilterProcessorContext> messageChainProcessor =
 145                 new GenericMessageChainProcessor<>(ImmutableList.of(firstFilter, secondFilter),
 146                         initialProcessorContext);
 147
 148         // process the generic message chain
 149         return messageChainProcessor.processChain();
 150     }
 151 }