src/main/java/org/onap/dmaap/dbcapi/resources/DR_PubResource.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 io.swagger.annotations.Api;
  24 import io.swagger.annotations.ApiOperation;
  25 import io.swagger.annotations.ApiResponse;
  26 import io.swagger.annotations.ApiResponses;
  27
  28 import java.util.ArrayList;
  29 import java.util.Iterator;
  30 import java.util.List;
  31
  32 import javax.ws.rs.Consumes;
  33 import javax.ws.rs.DELETE;
  34 import javax.ws.rs.GET;
  35 import javax.ws.rs.POST;
  36 import javax.ws.rs.PUT;
  37 import javax.ws.rs.Path;
  38 import javax.ws.rs.PathParam;
  39 import javax.ws.rs.Produces;
  40 import javax.ws.rs.core.GenericEntity;
  41 import javax.ws.rs.core.MediaType;
  42 import javax.ws.rs.core.Response;
  43 import javax.ws.rs.core.Response.Status;
  44
  45 import org.onap.dmaap.dbcapi.logging.BaseLoggingClass;
  46 import org.onap.dmaap.dbcapi.model.ApiError;
  47 import org.onap.dmaap.dbcapi.model.DR_Pub;
  48 import org.onap.dmaap.dbcapi.model.Feed;
  49 import org.onap.dmaap.dbcapi.service.DR_PubService;
  50 import org.onap.dmaap.dbcapi.service.FeedService;
  51
  52
  53 @Path("/dr_pubs")
  54 @Api( value= "dr_pubs", description = "Endpoint for a Data Router client that implements a Publisher" )
  55 @Consumes(MediaType.APPLICATION_JSON)
  56 @Produces(MediaType.APPLICATION_JSON)
  57 @Authorization
  58 public class DR_PubResource extends BaseLoggingClass {
  59
  60         private DR_PubService dr_pubService = new DR_PubService();
  61         private ResponseBuilder responseBuilder = new ResponseBuilder();
  62         private RequiredChecker checker = new RequiredChecker();
  63
  64         @GET
  65         @ApiOperation( value = "return DR_Pub details",
  66         notes = "Returns array of  `DR_Pub` objects.  Add filter for feedId.",
  67         response = DR_Pub.class)
  68         @ApiResponses( value = {
  69             @ApiResponse( code = 200, message = "Success", response = DR_Pub.class),
  70             @ApiResponse( code = 400, message = "Error", response = ApiError.class )
  71         })
  72         public  Response getDr_Pubs() {
  73                 logger.info( "Entry: GET /dr_pubs");
  74                 List<DR_Pub> pubs = dr_pubService.getAllDr_Pubs();
  75
  76                 GenericEntity<List<DR_Pub>> list = new GenericEntity<List<DR_Pub>>(pubs) {
  77         };
  78         return responseBuilder.success(list);
  79         }
  80
  81         @POST
  82         @ApiOperation( value = "return DR_Pub details",
  83         notes = "create a DR Publisher in the specified environment.",
  84         response = DR_Pub.class)
  85         @ApiResponses( value = {
  86             @ApiResponse( code = 200, message = "Success", response = DR_Pub.class),
  87             @ApiResponse( code = 400, message = "Error", response = ApiError.class )
  88         })
  89         public Response addDr_Pub(DR_Pub pub) {
  90                 ApiError apiError = new ApiError();
  91                 FeedService feeds = new FeedService();
  92                 Feed fnew = null;
  93
  94                 logger.info( "Entry: POST /dr_pubs");
  95
  96                 try {
  97                         checker.required( "feedId", pub.getFeedId());
  98                 } catch ( RequiredFieldException rfe ) {
  99                         try {
 100                                 checker.required( "feedName", pub.getFeedName());
 101                         }catch ( RequiredFieldException rfe2 ) {
 102                                 logger.debug( rfe2.getApiError().toString() );
 103                                 return responseBuilder.error(rfe2.getApiError());
 104                         }
 105                         // if we found a FeedName instead of a FeedId then try to look it up.
 106                         List<Feed> nfeeds =  feeds.getAllFeeds( pub.getFeedName(), pub.getFeedVersion(), "equals");
 107                         if ( nfeeds.isEmpty() ) {
 108                                 apiError.setCode(Status.NOT_FOUND.getStatusCode());
 109                                 apiError.setFields("feedName");
 110                                 return responseBuilder.error(apiError);
 111                         }
 112                         fnew = nfeeds.get(0);
 113                 }
 114                 try {
 115                         checker.required( "dcaeLocationName", pub.getDcaeLocationName());
 116                 } catch ( RequiredFieldException rfe ) {
 117                         logger.debug( rfe.getApiError().toString() );
 118                         return responseBuilder.error(rfe.getApiError());
 119                 }
 120
 121
 122                 // we may have fnew already if located by FeedName
 123                 if ( fnew == null ) {
 124                         fnew = feeds.getFeed(pub.getFeedId(), apiError);
 125                 }
 126                 if ( fnew == null ) {
 127                         logger.info( "Specified feed " + pub.getFeedId() + " or " + pub.getFeedName() + " not known to Bus Controller");
 128                         return responseBuilder.error(apiError);
 129                 }
 130
 131                 ArrayList<DR_Pub> pubs = fnew.getPubs();
 132                 logger.info( "num existing pubs before = " + pubs.size() );
 133
 134                 logger.info( "update feed");
 135                 pub.setNextPubId();
 136                 if ( pub.getUsername() == null ) {
 137                         pub.setRandomUserName();
 138                 }
 139                 if ( pub.getUserpwd() == null ) {
 140                         pub.setRandomPassword();
 141                 }
 142                 pubs.add( pub );
 143                 fnew.setPubs(pubs);
 144                 fnew = feeds.updateFeed(fnew, apiError);
 145
 146                 if (!apiError.is2xx()) {
 147                         return responseBuilder.error(apiError);
 148                 }
 149                 pubs = fnew.getPubs();
 150                 logger.info( "num existing pubs after = " + pubs.size() );
 151
 152                 DR_Pub pnew = dr_pubService.getDr_Pub(pub.getPubId(), apiError);
 153                 return responseBuilder.success(Status.CREATED.getStatusCode(), pnew);
 154         }
 155
 156         @PUT
 157         @ApiOperation( value = "return DR_Pub details",
 158         notes = "update a DR Publisher in the specified environment.  Update a `DR_Pub` object by pubId",
 159         response = DR_Pub.class)
 160         @ApiResponses( value = {
 161             @ApiResponse( code = 200, message = "Success", response = DR_Pub.class),
 162             @ApiResponse( code = 400, message = "Error", response = ApiError.class )
 163         })
 164         @Path("/{pubId}")
 165         public Response updateDr_Pub(@PathParam("pubId") String name, DR_Pub pub) {
 166                 logger.info( "Entry: PUT /dr_pubs");
 167                 pub.setPubId(name);
 168                 DR_Pub res = dr_pubService.updateDr_Pub(pub);
 169                 return responseBuilder.success(res);
 170         }
 171
 172         @DELETE
 173         @ApiOperation( value = "return DR_Pub details",
 174         notes = "delete a DR Publisher in the specified environment. Delete a `DR_Pub` object by pubId",
 175         response = DR_Pub.class)
 176         @ApiResponses( value = {
 177             @ApiResponse( code = 204, message = "Success", response = DR_Pub.class),
 178             @ApiResponse( code = 400, message = "Error", response = ApiError.class )
 179         })
 180         @Path("/{pubId}")
 181         public Response deleteDr_Pub(@PathParam("pubId") String id){
 182
 183                 ApiError apiError = new ApiError();
 184
 185                 try {
 186                         checker.required( "pubId", id);
 187                 } catch ( RequiredFieldException rfe ) {
 188                         return responseBuilder.error(rfe.getApiError());
 189                 }
 190
 191                 DR_Pub pub =  dr_pubService.getDr_Pub(id, apiError);
 192                 if ( !apiError.is2xx()) {
 193                         return responseBuilder.error(apiError);
 194                 }
 195                 FeedService feeds = new FeedService();
 196                 Feed fnew = feeds.getFeed(pub.getFeedId(), apiError);
 197                 if ( fnew == null ) {
 198                         logger.info( "Specified feed " + pub.getFeedId() + " not known to Bus Controller");
 199                         return responseBuilder.error(apiError);
 200                 }
 201                 ArrayList<DR_Pub> pubs = fnew.getPubs();
 202                 if ( pubs.size() == 1 ) {
 203                         apiError.setCode(Status.BAD_REQUEST.getStatusCode());
 204                         apiError.setMessage( "Can't delete the last publisher of a feed");
 205                         return responseBuilder.error(apiError);
 206                 }
 207
 208                 for( Iterator<DR_Pub> i = pubs.iterator(); i.hasNext(); ) {
 209                         DR_Pub listItem = i.next();
 210                         if ( listItem.getPubId().equals(id)) {
 211                                 i.remove();
 212                         }
 213                 }
 214                 fnew.setPubs(pubs);
 215                 fnew = feeds.updateFeed(fnew,apiError);
 216                 if (!apiError.is2xx()) {
 217                         return responseBuilder.error(apiError);
 218                 }
 219
 220                 dr_pubService.removeDr_Pub(id, apiError);
 221                 if (!apiError.is2xx()) {
 222                         return responseBuilder.error(apiError);
 223                 }
 224                 return responseBuilder.success(Status.NO_CONTENT.getStatusCode(), null);
 225         }
 226
 227         @GET
 228         @ApiOperation( value = "return DR_Pub details",
 229         notes = "returns a DR Publisher in the specified environment. Gets a `DR_Pub` object by pubId",
 230         response = DR_Pub.class)
 231         @ApiResponses( value = {
 232             @ApiResponse( code = 200, message = "Success", response = DR_Pub.class),
 233             @ApiResponse( code = 400, message = "Error", response = ApiError.class )
 234         })
 235         @Path("/{pubId}")
 236         public Response get(@PathParam("pubId") String id) {
 237                 ApiError apiError = new ApiError();
 238
 239                 try {
 240                         checker.required( "feedId", id);
 241                 } catch ( RequiredFieldException rfe ) {
 242                         return responseBuilder.error(rfe.getApiError());
 243                 }
 244
 245                 DR_Pub pub =  dr_pubService.getDr_Pub(id, apiError);
 246                 if (!apiError.is2xx()) {
 247                         return responseBuilder.error(apiError);
 248                 }
 249                 return responseBuilder.success(Status.OK.getStatusCode(), pub);
 250         }
 251 }