engine-d/src/main/java/org/onap/holmes/engine/resources/DmaapConfigurationService.java

   1 /*
   2  * Copyright 2017 ZTE Corporation.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.onap.holmes.engine.resources;
  18
  19 import io.swagger.annotations.Api;
  20 import io.swagger.annotations.ApiOperation;
  21 import io.swagger.annotations.ApiParam;
  22 import javax.servlet.http.HttpServletRequest;
  23 import javax.ws.rs.DELETE;
  24 import javax.ws.rs.PUT;
  25 import javax.ws.rs.Path;
  26 import javax.ws.rs.PathParam;
  27 import javax.ws.rs.Produces;
  28 import javax.ws.rs.core.Context;
  29 import javax.ws.rs.core.MediaType;
  30 import lombok.extern.slf4j.Slf4j;
  31 import org.jvnet.hk2.annotations.Service;
  32 import org.onap.holmes.common.dcae.DcaeConfigurationsCache;
  33 import org.onap.holmes.common.dcae.entity.SecurityInfo;
  34 import org.onap.holmes.common.dropwizard.ioc.utils.ServiceLocatorHolder;
  35 import org.onap.holmes.dsa.dmaappolling.Subscriber;
  36 import org.onap.holmes.engine.dmaappolling.SubscriberAction;
  37 import org.onap.holmes.engine.request.DmaapConfigRequest;
  38
  39 @Service
  40 @Slf4j
  41 //@Api(tags = {"DMaaP Configurations"})
  42 @Path("/dmaap")
  43 public class DmaapConfigurationService {
  44     @PUT
  45     @Produces(MediaType.APPLICATION_JSON)
  46     @ApiOperation(value = "Subscribe to a new topic. "
  47             + "If the topic already exists, it is replaced with the new configuration.")
  48     @Path("/sub")
  49     public String addSubInfo(
  50             @ApiParam (value = "A JSON object with the fields named <b>name</b>"
  51                     + " and <b>url</b>. Both fields are required.") DmaapConfigRequest config,
  52             @Context HttpServletRequest request){
  53         String url = config.getUrl();
  54         if (url.startsWith("http://")) {
  55             Subscriber subscriber = new Subscriber();
  56             subscriber.setTopic(config.getName());
  57             subscriber.setUrl(url);
  58
  59             SubscriberAction subscriberAction = ServiceLocatorHolder.getLocator()
  60                     .getService(SubscriberAction.class);
  61             subscriberAction.removeSubscriber(subscriber);
  62             subscriberAction.addSubscriber(subscriber);
  63
  64             log.info("New configurations applied. Topic Name: " + config.getName() + ", URL: " + url + ".");
  65
  66             return "{\"message\": \"Succeeded!\", \"topic\": \"" + config.getName() + "\"}";
  67         }
  68         return "{\"message\": \"Only the HTTP protocol is supported!\"}";
  69     }
  70
  71     @DELETE
  72     @Path("/sub/{topic}")
  73     @ApiOperation(value = "Unsubscribe a topic from DMaaP.")
  74     @Produces(MediaType.APPLICATION_JSON)
  75     public String removeSubInfo(@PathParam("topic") String topic){
  76         Subscriber subscriber = new Subscriber();
  77         subscriber.setTopic(topic);
  78
  79         SubscriberAction subscriberAction = ServiceLocatorHolder.getLocator()
  80                 .getService(SubscriberAction.class);
  81         subscriberAction.removeSubscriber(subscriber);
  82
  83         return "{\"message\": \"Topic unsubscribed.\"}";
  84     }
  85
  86     @PUT
  87     @Produces(MediaType.APPLICATION_JSON)
  88     @Path("/pub")
  89     @ApiOperation(value = "Add/Update a publishing topic. "
  90             + "If the topic already exists, it is replaced with the new configuration.")
  91     public String updatePubInfo(
  92             @ApiParam (value = "A JSON object with the fields named <b>name</b>"
  93                 + " and <b>url</b>. Both fields are required.") DmaapConfigRequest config,
  94             @Context HttpServletRequest request){
  95         String url = config.getUrl();
  96         if (url.startsWith("http://")) {
  97             SecurityInfo securityInfo = new SecurityInfo();
  98             SecurityInfo.DmaapInfo dmaapInfo = new SecurityInfo().new DmaapInfo();
  99             dmaapInfo.setTopicUrl(config.getUrl());
 100             securityInfo.setDmaapInfo(dmaapInfo);
 101             DcaeConfigurationsCache.addPubSecInfo(config.getName(), securityInfo);
 102             return "{\"message\": \"Succeeded!\", \"topic\": \"" + config.getName() + "\"}";
 103         }
 104         return "{\"message\": \"Only the HTTP protocol is supported!\"}";
 105     }
 106 }