src/main/java/org/onap/dmaap/dbcapi/resources/BridgeResource.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.resources;
  22
  23 import java.util.List;
  24
  25 import javax.ws.rs.Consumes;
  26 import javax.ws.rs.GET;
  27 import javax.ws.rs.PUT;
  28 import javax.ws.rs.Path;
  29 import javax.ws.rs.Produces;
  30 import javax.ws.rs.QueryParam;
  31 import javax.ws.rs.core.MediaType;
  32 import javax.ws.rs.core.Response;
  33 import javax.ws.rs.core.Response.Status;
  34
  35 import org.onap.dmaap.dbcapi.logging.BaseLoggingClass;
  36 import org.onap.dmaap.dbcapi.model.ApiError;
  37 import org.onap.dmaap.dbcapi.model.BrTopic;
  38 import org.onap.dmaap.dbcapi.model.MirrorMaker;
  39 import org.onap.dmaap.dbcapi.service.ApiService;
  40 import org.onap.dmaap.dbcapi.service.MirrorMakerService;
  41
  42 import io.swagger.annotations.Api;
  43 import io.swagger.annotations.ApiOperation;
  44 import io.swagger.annotations.ApiResponse;
  45 import io.swagger.annotations.ApiResponses;
  46
  47 @Path("/bridge")
  48 @Api( value= "bridge", description = "Endpoint for retreiving MR Bridge metrics" )
  49 @Consumes(MediaType.APPLICATION_JSON)
  50 @Produces(MediaType.APPLICATION_JSON)
  51 @Authorization
  52 public class BridgeResource extends BaseLoggingClass {
  53
  54         private MirrorMakerService mmService = new MirrorMakerService();
  55
  56         @GET
  57         @ApiOperation( value = "return BrTopic details",
  58         notes = "Returns array of  `BrTopic` objects. If source and target query params are specified, only report on that bridge.  "
  59                         + "If detail param is true, list topics names, else just a count is returned.",
  60         response = BrTopic.class)
  61 @ApiResponses( value = {
  62     @ApiResponse( code = 200, message = "Success", response = BrTopic.class),
  63     @ApiResponse( code = 400, message = "Error", response = ApiError.class )
  64 })
  65         public Response getBridgedTopics(@QueryParam("mmagent") String mmagent,
  66                                                                         @QueryParam("detail") Boolean detailFlag ){
  67                 ApiService check = new ApiService();
  68
  69                 if ( mmagent == null ) {
  70                         return check.success(getMMcounts(Boolean.TRUE.equals(detailFlag)));
  71
  72                 }
  73                 logger.info( "getBridgeTopics():" + " mmagent=" + mmagent);
  74
  75                 if ( ! Boolean.TRUE.equals(detailFlag)) {
  76                         BrTopic brTopic = new BrTopic();
  77
  78                         // get topics between 2 bridged locations
  79
  80                         MirrorMaker mm = mmService.getMirrorMaker(mmagent);
  81                         if ( mm == null ) {
  82                                 return check.notFound();
  83                         }
  84
  85                         brTopic.setTopicCount( mm.getTopicCount() );
  86                         brTopic.setBrSource( mm.getSourceCluster());
  87                         brTopic.setBrTarget( mm.getTargetCluster());
  88                         brTopic.setMmAgentName(mm.getMmName());
  89
  90                         logger.info( "topicCount [2 locations]: " + brTopic.getTopicCount() );
  91
  92                         return check.success(brTopic);
  93                 } else {
  94                         logger.info( "getBridgeTopics() detail:" + " mmagent=" + mmagent);
  95                         // get topics between 2 bridged locations
  96                         MirrorMaker mm = mmService.getMirrorMaker(mmagent);
  97                         if ( mm == null ) {
  98                                 return check.notFound();
  99                         }
 100
 101                         return check.success(mm);
 102                 }
 103         }
 104
 105         private BrTopic[] getMMcounts( Boolean showDetail ) {
 106
 107                 List<String> mmList = mmService.getAllMirrorMakers();
 108                 int s = 1;
 109                 if ( showDetail ) {
 110                         s = mmList.size() + 1;
 111                 }
 112                 BrTopic[] brTopic = new BrTopic[s];
 113
 114                 int totCnt = 0;
 115                 s = 0;
 116                 for( String key: mmList ) {
 117                         int mCnt = 0;
 118                         MirrorMaker mm = mmService.getMirrorMaker(key);
 119                         if ( mm != null ) {
 120                                 mCnt = mm.getTopicCount();
 121                         }
 122                         logger.info( "Count for "+ key + ": " + mCnt);
 123                         totCnt += mCnt;
 124                         if (showDetail) {
 125                                 brTopic[s] =  new BrTopic();
 126                                 brTopic[s].setBrSource( mm.getSourceCluster());
 127                                 brTopic[s].setBrTarget(mm.getTargetCluster());
 128                                 brTopic[s].setMmAgentName(mm.getMmName());
 129                                 brTopic[s].setTopicCount(mm.getTopicCount());
 130                                 s++;
 131                         }
 132                 }
 133
 134                 logger.info( "topicCount [all locations]: " + totCnt );
 135                 brTopic[s] =  new BrTopic();
 136                 brTopic[s].setBrSource("all");
 137                 brTopic[s].setBrTarget("all");
 138                 brTopic[s].setMmAgentName("n/a");
 139                 brTopic[s].setTopicCount(totCnt);
 140                 return brTopic;
 141         }
 142
 143         @PUT
 144         @ApiOperation( value = "update MirrorMaker details",
 145                 notes = "replace the topic list for a specific Bridge.  Use JSON Body for value to replace whitelist, "
 146                                 + "but if refreshFlag param is true, simply refresh using existing whitelist."
 147                                 + "If split param is true, spread whitelist over smaller mmagents.",
 148                 response = MirrorMaker.class)
 149         @ApiResponses( value = {
 150             @ApiResponse( code = 200, message = "Success", response = BrTopic.class),
 151             @ApiResponse( code = 400, message = "Error", response = ApiError.class )
 152         })
 153         public Response putBridgedTopics(@QueryParam("mmagent") String mmagent,
 154                                                                         @QueryParam("refresh") Boolean refreshFlag,
 155                                                                         @QueryParam("split") Boolean splitFlag,
 156                                                                         MirrorMaker newBridge ){
 157                 ApiService check = new ApiService();
 158
 159                 logger.info( "putBridgeTopics() mmagent:" +  mmagent );
 160
 161                 if ( mmagent != null ) {                // put topics between 2 bridged locations
 162
 163                         MirrorMaker mm = mmService.getMirrorMaker(mmagent);
 164                         if ( mm == null ) {
 165                                 return check.notFound();
 166                         }
 167
 168                         if ( splitFlag != null && splitFlag == true ) {
 169                                 mm = mmService.splitMM( mm );
 170                         } else if ( refreshFlag == null  ||  refreshFlag == false ) {
 171                                 logger.info( "setting whitelist from message body containing mmName=" + newBridge.getMmName());
 172                                 if ( ! mmagent.equals(newBridge.getMmName()) ){
 173                                         logger.error( "mmagent query param does not match mmName in body");
 174                                         check.setCode(Status.BAD_REQUEST.getStatusCode());
 175                                         check.setMessage("mmagent query param does not match mmName in body");
 176                                         return check.error();
 177                                 }
 178                                 mm.setTopics( newBridge.getTopics() );
 179                         } else {
 180                                 logger.info( "refreshing whitelist from memory");
 181                         }
 182                         mmService.updateMirrorMaker(mm);
 183                         return check.success(mm);
 184                 }
 185
 186                 else {
 187
 188                         logger.error( "mmagent is required for PUT");
 189                         check.setCode(Status.BAD_REQUEST.getStatusCode());
 190                         check.setMessage("mmagent is required for PUT");
 191                         return check.error();
 192                 }
 193
 194         }
 195 }