dmaap-bc/src/main/java/org/onap/dmaap/dbcapi/model/MirrorMaker.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * org.onap.dmaap
   4  * ================================================================================
   5  * Copyright (C) 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.onap.dmaap.dbcapi.model;
  22
  23 import org.onap.dmaap.dbcapi.service.MirrorMakerService;
  24
  25 import java.util.ArrayList;
  26
  27 public class MirrorMaker extends DmaapObject {
  28
  29         private String  sourceCluster;
  30         private String  targetCluster;
  31         private String  mmName;
  32         private ArrayList<String> topics;  //re-using this var name for backwards DB compatibility
  33
  34         public MirrorMaker(){
  35
  36         }
  37
  38         public MirrorMaker(String source, String target, int i) {
  39                 initMM( source, target );
  40                 // original mm names did not have any index, so leave off index 0 for
  41                 // backwards compatibility
  42                 if ( i != 0 ) {
  43                         String n = this.getMmName() + "_" + i;
  44                         this.setMmName(n);
  45                 }
  46         }
  47
  48         public MirrorMaker(String source, String target) {
  49                 initMM( source, target );
  50         }
  51
  52         private void initMM(String source, String target) {
  53                 sourceCluster = source;
  54                 targetCluster = target;
  55                 mmName = genKey(source, target);
  56                 topics = new ArrayList<>();
  57
  58         }
  59
  60         public String getMmName() {
  61                 return mmName;
  62         }
  63
  64         public void setMmName(String mmName) {
  65                 this.mmName = mmName;
  66         }
  67
  68         // returns the JSON for MM message containing which Topics to replicate
  69         /*
  70          * example:
  71          *
  72                         {
  73                             "messageID":"12349",
  74                             "updateWhiteList":
  75                                 {
  76                                     "name":"Global1ToGlobal3",
  77                                     "whitelist":"org.openecomp.dcae.topic1,org.openecomp.dcae.topic2"
  78                                 }
  79                         }
  80          */
  81         public String getWhitelistUpdateJSON() {
  82                 StringBuilder str = new StringBuilder( "{ \"messageID\": \"" + MirrorMakerService.genTransactionId() + "\", \"updateWhiteList\": {"  );
  83                 str.append( " \"name\": \"" + this.getMmName() + "\", \"whitelist\": \"" );
  84                 int numTargets = 0;
  85
  86                 for (String rv: topics) {
  87                         if ( numTargets > 0 ) {
  88                                 str.append( ",");
  89                         }
  90                         str.append( rv );
  91                         numTargets++;
  92                 }
  93                 str.append( "\" } }" );
  94
  95                 return str.toString();
  96         }
  97
  98         // returns the JSON for MM message indicating that a MM agent is needed between two clusters
  99         // example:
 100         /*
 101          *
 102                         {
 103                             "messageID":"12345"
 104                             "createMirrorMaker":
 105                                 {
 106                                     "name":"Global1ToGlobal2",
 107                                     "consumer":"192.168.0.1:2181",
 108                                     "producer":"192.168.0.2:9092"
 109                                 }
 110                         }
 111          */
 112         public String createMirrorMaker( String consumerPort, String producerPort ) {
 113                 StringBuilder str = new StringBuilder( "{ \"messageID\": \"" + MirrorMakerService.genTransactionId() + "\", \"createMirrorMaker\": {"  );
 114                 str.append( " \"name\": \"" + this.getMmName() + "\", " );
 115                 str.append( " \"consumer\": \"" + this.sourceCluster + ":" + consumerPort + "\", " );
 116                 str.append( " \"producer\": \"" + this.targetCluster + ":" + producerPort + "\", ");
 117
 118                 str.append( " \"numStreams\": \"10\" } }" );
 119
 120                 return str.toString();
 121         }
 122
 123         public String getSourceCluster() {
 124                 return sourceCluster;
 125         }
 126
 127         public void setSourceCluster(String sourceCluster) {
 128                 this.sourceCluster = sourceCluster;
 129         }
 130
 131         public String getTargetCluster() {
 132                 return targetCluster;
 133         }
 134
 135         public void setTargetCluster(String targetCluster) {
 136                 this.targetCluster = targetCluster;
 137         }
 138
 139         public ArrayList<String> getTopics() {
 140                 return topics;
 141         }
 142
 143         public void setTopics(ArrayList<String> topics) {
 144                 this.topics = topics;
 145         }
 146
 147         public static String genKey( String s, String t) {
 148                 StringBuilder str = new StringBuilder();
 149                 str.append(s);
 150                 str.append("-To-");
 151                 str.append(t);
 152                 return str.toString();
 153         }
 154
 155         public void addTopic( String topic ) {
 156                 if ( ! topics.contains(topic)) {
 157                         topics.add(topic);
 158                 }
 159                 logger.info( "Mirrormaker.addTopic: topic=" + topic + " . Now have " + topics.size() + " topics" );
 160         }
 161
 162         public int getTopicCount() {
 163                 return topics.size();
 164         }
 165 }