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