dmaap-bc/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
  82         @POST
  83         @ApiOperation( value = "return DR_Pub details",
  84         notes = "create a DR Publisher in the specified environment.",
  85         response = DR_Pub.class)
  86         @ApiResponses( value = {
  87             @ApiResponse( code = 200, message = "Success", response = DR_Pub.class),
  88             @ApiResponse( code = 400, message = "Error", response = ApiError.class )
  89         })
  90         public Response addDr_Pub(DR_Pub pub) {
  91                 ApiError apiError = new ApiError();
  92                 FeedService feeds = new FeedService();
  93                 Feed fnew = null;
  94
  95                 logger.info( "Entry: POST /dr_pubs");
  96
  97                 try {
  98                         checker.required( "feedId", pub.getFeedId());
  99                 } catch ( RequiredFieldException rfe ) {
 100                         try {
 101                                 checker.required( "feedName", pub.getFeedName());
 102                         }catch ( RequiredFieldException rfe2 ) {
 103                                 logger.debug( rfe2.getApiError().toString() );
 104                                 return responseBuilder.error(rfe2.getApiError());
 105                         }
 106                         // if we found a FeedName instead of a FeedId then try to look it up.
 107                         List<Feed> nfeeds =  feeds.getAllFeeds( pub.getFeedName(), pub.getFeedVersion(), "equals");
 108                         if ( nfeeds.isEmpty() ) {
 109                                 apiError.setCode(Status.NOT_FOUND.getStatusCode());
 110                                 apiError.setFields("feedName");
 111                                 return responseBuilder.error(apiError);
 112                         }
 113                         fnew = nfeeds.get(0);
 114                 }
 115                 try {
 116                         checker.required( "dcaeLocationName", pub.getDcaeLocationName());
 117                 } catch ( RequiredFieldException rfe ) {
 118                         logger.debug( rfe.getApiError().toString() );
 119                         return responseBuilder.error(rfe.getApiError());
 120                 }
 121
 122
 123                 // we may have fnew already if located by FeedName
 124                 if ( fnew == null ) {
 125                         fnew = feeds.getFeed(pub.getFeedId(), apiError);
 126                 }
 127                 if ( fnew == null ) {
 128                         logger.info( "Specified feed " + pub.getFeedId() + " or " + pub.getFeedName() + " not known to Bus Controller");
 129                         return responseBuilder.error(apiError);
 130                 }
 131
 132                 ArrayList<DR_Pub> pubs = fnew.getPubs();
 133                 logger.info( "num existing pubs before = " + pubs.size() );
 134
 135                 logger.info( "update feed");
 136                 pub.setNextPubId();
 137                 if ( pub.getUsername() == null ) {
 138                         pub.setRandomUserName();
 139                 }
 140                 if ( pub.getUserpwd() == null ) {
 141                         pub.setRandomPassword();
 142                 }
 143                 pubs.add( pub );
 144                 fnew.setPubs(pubs);
 145                 fnew = feeds.updateFeed(fnew, apiError);
 146
 147                 if (!apiError.is2xx()) {
 148                         return responseBuilder.error(apiError);
 149                 }
 150                 pubs = fnew.getPubs();
 151                 logger.info( "num existing pubs after = " + pubs.size() );
 152
 153                 DR_Pub pnew = dr_pubService.getDr_Pub(pub.getPubId(), apiError);
 154                 return responseBuilder.success(Status.CREATED.getStatusCode(), pnew);
 155         }
 156
 157         @PUT
 158         @ApiOperation( value = "return DR_Pub details",
 159         notes = "update a DR Publisher in the specified environment.  Update a `DR_Pub` object by pubId",
 160         response = DR_Pub.class)
 161         @ApiResponses( value = {
 162             @ApiResponse( code = 200, message = "Success", response = DR_Pub.class),
 163             @ApiResponse( code = 400, message = "Error", response = ApiError.class )
 164         })
 165         @Path("/{pubId}")
 166         public Response updateDr_Pub(@PathParam("pubId") String name, DR_Pub pub) {
 167                 logger.info( "Entry: PUT /dr_pubs");
 168                 pub.setPubId(name);
 169                 DR_Pub res = dr_pubService.updateDr_Pub(pub);
 170                 return responseBuilder.success(res);
 171         }
 172
 173         @DELETE
 174         @ApiOperation( value = "return DR_Pub details",
 175         notes = "delete a DR Publisher in the specified environment. Delete a `DR_Pub` object by pubId",
 176         response = DR_Pub.class)
 177         @ApiResponses( value = {
 178             @ApiResponse( code = 204, message = "Success", response = DR_Pub.class),
 179             @ApiResponse( code = 400, message = "Error", response = ApiError.class )
 180         })
 181         @Path("/{pubId}")
 182         public Response deleteDr_Pub(@PathParam("pubId") String id){
 183
 184                 ApiError apiError = new ApiError();
 185
 186                 try {
 187                         checker.required( "pubId", id);
 188                 } catch ( RequiredFieldException rfe ) {
 189                         return responseBuilder.error(rfe.getApiError());
 190                 }
 191
 192                 DR_Pub pub =  dr_pubService.getDr_Pub(id, apiError);
 193                 if ( !apiError.is2xx()) {
 194                         return responseBuilder.error(apiError);
 195                 }
 196                 FeedService feeds = new FeedService();
 197                 Feed fnew = feeds.getFeed(pub.getFeedId(), apiError);
 198                 if ( fnew == null ) {
 199                         logger.info( "Specified feed " + pub.getFeedId() + " not known to Bus Controller");
 200                         return responseBuilder.error(apiError);
 201                 }
 202                 ArrayList<DR_Pub> pubs = fnew.getPubs();
 203                 if ( pubs.size() == 1 ) {
 204                         apiError.setCode(Status.BAD_REQUEST.getStatusCode());
 205                         apiError.setMessage( "Can't delete the last publisher of a feed");
 206                         return responseBuilder.error(apiError);
 207                 }
 208
 209                 for( Iterator<DR_Pub> i = pubs.iterator(); i.hasNext(); ) {
 210                         DR_Pub listItem = i.next();
 211                         if ( listItem.getPubId().equals(id)) {
 212                                 i.remove();
 213                         }
 214                 }
 215                 fnew.setPubs(pubs);
 216                 fnew = feeds.updateFeed(fnew,apiError);
 217                 if (!apiError.is2xx()) {
 218                         return responseBuilder.error(apiError);
 219                 }
 220
 221                 dr_pubService.removeDr_Pub(id, apiError);
 222                 if (!apiError.is2xx()) {
 223                         return responseBuilder.error(apiError);
 224                 }
 225                 return responseBuilder.success(Status.NO_CONTENT.getStatusCode(), null);
 226         }
 227
 228         @GET
 229         @ApiOperation( value = "return DR_Pub details",
 230         notes = "returns a DR Publisher in the specified environment. Gets a `DR_Pub` object by pubId",
 231         response = DR_Pub.class)
 232         @ApiResponses( value = {
 233             @ApiResponse( code = 200, message = "Success", response = DR_Pub.class),
 234             @ApiResponse( code = 400, message = "Error", response = ApiError.class )
 235         })
 236         @Path("/{pubId}")
 237         public Response get(@PathParam("pubId") String id) {
 238                 ApiError apiError = new ApiError();
 239
 240                 try {
 241                         checker.required( "feedId", id);
 242                 } catch ( RequiredFieldException rfe ) {
 243                         return responseBuilder.error(rfe.getApiError());
 244                 }
 245
 246                 DR_Pub pub =  dr_pubService.getDr_Pub(id, apiError);
 247                 if (!apiError.is2xx()) {
 248                         return responseBuilder.error(apiError);
 249                 }
 250                 return responseBuilder.success(Status.OK.getStatusCode(), pub);
 251         }
 252 }