dmaap-bc/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  * Modifications Copyright (C) 2018 IBM.
   8  * ================================================================================
   9  * Licensed under the Apache License, Version 2.0 (the "License");
  10  * you may not use this file except in compliance with the License.
  11  * You may obtain a copy of the License at
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  * ============LICENSE_END=========================================================
  21  */
  22
  23 package org.onap.dmaap.dbcapi.resources;
  24
  25 import java.util.List;
  26
  27 import javax.ws.rs.Consumes;
  28 import javax.ws.rs.GET;
  29 import javax.ws.rs.PUT;
  30 import javax.ws.rs.Path;
  31 import javax.ws.rs.Produces;
  32 import javax.ws.rs.QueryParam;
  33 import javax.ws.rs.core.MediaType;
  34 import javax.ws.rs.core.Response;
  35
  36 import org.onap.dmaap.dbcapi.logging.BaseLoggingClass;
  37 import org.onap.dmaap.dbcapi.model.ApiError;
  38 import org.onap.dmaap.dbcapi.model.BrTopic;
  39 import org.onap.dmaap.dbcapi.model.MirrorMaker;
  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 import static javax.ws.rs.core.Response.Status.BAD_REQUEST;
  48
  49 @Path("/bridge")
  50 @Api( value= "bridge", description = "Endpoint for retreiving MR Bridge metrics" )
  51 @Consumes(MediaType.APPLICATION_JSON)
  52 @Produces(MediaType.APPLICATION_JSON)
  53 @Authorization
  54 public class BridgeResource extends BaseLoggingClass {
  55
  56         private MirrorMakerService mmService = new MirrorMakerService();
  57         private ResponseBuilder responseBuilder = new ResponseBuilder();
  58
  59         @GET
  60         @ApiOperation( value = "return BrTopic details",
  61         notes = "Returns array of  `BrTopic` objects. If source and target query params are specified, only report on that bridge.  "
  62                         + "If detail param is true, list topics names, else just a count is returned.",
  63         response = BrTopic.class)
  64 @ApiResponses( value = {
  65     @ApiResponse( code = 200, message = "Success", response = BrTopic.class),
  66     @ApiResponse( code = 400, message = "Error", response = ApiError.class )
  67 })
  68         public Response getBridgedTopics(@QueryParam("mmagent") String mmagent,
  69                                                                         @QueryParam("detail") Boolean detailFlag ){
  70
  71                 if ( mmagent == null ) {
  72                         return responseBuilder.success(getMMcounts(Boolean.TRUE.equals(detailFlag)));
  73
  74                 }
  75                 logger.info( "getBridgeTopics():" + " mmagent=" + mmagent);
  76
  77                 if ( ! Boolean.TRUE.equals(detailFlag)) {
  78                         BrTopic brTopic = new BrTopic();
  79
  80                         // get topics between 2 bridged locations
  81
  82                         MirrorMaker mm = mmService.getMirrorMaker(mmagent);
  83                         if ( mm == null ) {
  84                                 return responseBuilder.notFound();
  85                         }
  86
  87                         brTopic.setTopicCount( mm.getTopicCount() );
  88                         brTopic.setBrSource( mm.getSourceCluster());
  89                         brTopic.setBrTarget( mm.getTargetCluster());
  90                         brTopic.setMmAgentName(mm.getMmName());
  91
  92                         logger.info( "topicCount [2 locations]: " + brTopic.getTopicCount() );
  93
  94                         return responseBuilder.success(brTopic);
  95                 } else {
  96                         logger.info( "getBridgeTopics() detail:" + " mmagent=" + mmagent);
  97                         // get topics between 2 bridged locations
  98                         MirrorMaker mm = mmService.getMirrorMaker(mmagent);
  99                         if ( mm == null ) {
 100                                 return responseBuilder.notFound();
 101                         }
 102
 103                         return responseBuilder.success(mm);
 104                 }
 105         }
 106
 107         private BrTopic[] getMMcounts( Boolean showDetail ) {
 108
 109                 List<String> mmList = mmService.getAllMirrorMakers();
 110                 int s = 1;
 111                 if ( showDetail ) {
 112                         s = mmList.size() + 1;
 113                 }
 114                 BrTopic[] brTopic = new BrTopic[s];
 115
 116                 int totCnt = 0;
 117                 s = 0;
 118                 for( String key: mmList ) {
 119                         int mCnt = 0;
 120                         MirrorMaker mm = mmService.getMirrorMaker(key);
 121                         if ( mm != null ) {
 122                                 mCnt = mm.getTopicCount();
 123                         }
 124                         logger.info( "Count for "+ key + ": " + mCnt);
 125                         totCnt += mCnt;
 126                         if (showDetail && mm!=null) {
 127                                 brTopic[s] =  new BrTopic();
 128                                 brTopic[s].setBrSource( mm.getSourceCluster());
 129                                 brTopic[s].setBrTarget(mm.getTargetCluster());
 130                                 brTopic[s].setMmAgentName(mm.getMmName());
 131                                 brTopic[s].setTopicCount(mm.getTopicCount());
 132                                 s++;
 133                         }
 134                 }
 135
 136                 logger.info( "topicCount [all locations]: " + totCnt );
 137                 brTopic[s] =  new BrTopic();
 138                 brTopic[s].setBrSource("all");
 139                 brTopic[s].setBrTarget("all");
 140                 brTopic[s].setMmAgentName("n/a");
 141                 brTopic[s].setTopicCount(totCnt);
 142                 return brTopic;
 143         }
 144
 145         @PUT
 146         @ApiOperation( value = "update MirrorMaker details",
 147                 notes = "replace the topic list for a specific Bridge.  Use JSON Body for value to replace whitelist, "
 148                                 + "but if refreshFlag param is true, simply refresh using existing whitelist."
 149                                 + "If split param is true, spread whitelist over smaller mmagents.",
 150                 response = MirrorMaker.class)
 151         @ApiResponses( value = {
 152             @ApiResponse( code = 200, message = "Success", response = BrTopic.class),
 153             @ApiResponse( code = 400, message = "Error", response = ApiError.class )
 154         })
 155         public Response putBridgedTopics(@QueryParam("mmagent") String mmagent,
 156                                                                         @QueryParam("refresh") Boolean refreshFlag,
 157                                                                         @QueryParam("split") Boolean splitFlag,
 158                                                                         MirrorMaker newBridge ){
 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 responseBuilder.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                                         return responseBuilder.error(new ApiError(BAD_REQUEST.getStatusCode(),
 175                                                         "mmagent query param does not match mmName in body"));
 176                                 }
 177                                 mm.setTopics( newBridge.getTopics() );
 178                         } else {
 179                                 logger.info( "refreshing whitelist from memory");
 180                         }
 181                         mmService.updateMirrorMaker(mm);
 182                         return responseBuilder.success(mm);
 183                 }
 184
 185                 else {
 186                         logger.error( "mmagent is required for PUT");
 187                         return responseBuilder.error(new ApiError(BAD_REQUEST.getStatusCode(), "mmagent is required for PUT"));
 188                 }
 189
 190         }
 191 }