[DMAAP-BC] Consolidate bus controller repos
[dmaap/buscontroller.git] / dmaap-bc / src / main / java / org / onap / dmaap / dbcapi / resources / BridgeResource.java
diff --git a/dmaap-bc/src/main/java/org/onap/dmaap/dbcapi/resources/BridgeResource.java b/dmaap-bc/src/main/java/org/onap/dmaap/dbcapi/resources/BridgeResource.java
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+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.dmaap
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Modifications Copyright (C) 2018 IBM.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.dmaap.dbcapi.resources;
+
+import java.util.List;
+
+import javax.ws.rs.Consumes;
+import javax.ws.rs.GET;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+import org.onap.dmaap.dbcapi.logging.BaseLoggingClass;
+import org.onap.dmaap.dbcapi.model.ApiError;
+import org.onap.dmaap.dbcapi.model.BrTopic;
+import org.onap.dmaap.dbcapi.model.MirrorMaker;
+import org.onap.dmaap.dbcapi.service.MirrorMakerService;
+
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import io.swagger.annotations.ApiResponse;
+import io.swagger.annotations.ApiResponses;
+
+import static javax.ws.rs.core.Response.Status.BAD_REQUEST;
+
+@Path("/bridge")
+@Api( value= "bridge", description = "Endpoint for retreiving MR Bridge metrics" )
+@Consumes(MediaType.APPLICATION_JSON)
+@Produces(MediaType.APPLICATION_JSON)
+@Authorization
+public class BridgeResource extends BaseLoggingClass {
+       
+       private MirrorMakerService mmService = new MirrorMakerService();
+       private ResponseBuilder responseBuilder = new ResponseBuilder();
+
+       @GET
+       @ApiOperation( value = "return BrTopic details", 
+       notes = "Returns array of  `BrTopic` objects. If source and target query params are specified, only report on that bridge.  "
+                       + "If detail param is true, list topics names, else just a count is returned.", 
+       response = BrTopic.class)
+@ApiResponses( value = {
+    @ApiResponse( code = 200, message = "Success", response = BrTopic.class),
+    @ApiResponse( code = 400, message = "Error", response = ApiError.class )
+})
+       public Response getBridgedTopics(@QueryParam("mmagent") String mmagent,
+                                                                       @QueryParam("detail") Boolean detailFlag ){
+
+               if ( mmagent == null ) {
+                       return responseBuilder.success(getMMcounts(Boolean.TRUE.equals(detailFlag)));
+
+               }
+               logger.info( "getBridgeTopics():" + " mmagent=" + mmagent);
+
+               if ( ! Boolean.TRUE.equals(detailFlag)) {
+                       BrTopic brTopic = new BrTopic();
+                       
+                       // get topics between 2 bridged locations
+
+                       MirrorMaker mm = mmService.getMirrorMaker(mmagent);
+                       if ( mm == null ) {             
+                               return responseBuilder.notFound();
+                       } 
+                                       
+                       brTopic.setTopicCount( mm.getTopicCount() );
+                       brTopic.setBrSource( mm.getSourceCluster());
+                       brTopic.setBrTarget( mm.getTargetCluster());
+                       brTopic.setMmAgentName(mm.getMmName());
+                       
+                       logger.info( "topicCount [2 locations]: " + brTopic.getTopicCount() );
+               
+                       return responseBuilder.success(brTopic);
+               } else {        
+                       logger.info( "getBridgeTopics() detail:" + " mmagent=" + mmagent);
+                       // get topics between 2 bridged locations       
+                       MirrorMaker mm = mmService.getMirrorMaker(mmagent);
+                       if ( mm == null ) {             
+                               return responseBuilder.notFound();
+                       } 
+
+                       return responseBuilder.success(mm);
+               }
+       }
+       
+       private BrTopic[] getMMcounts( Boolean showDetail ) {
+               
+               List<String> mmList = mmService.getAllMirrorMakers();
+               int s = 1;
+               if ( showDetail ) {
+                       s = mmList.size() + 1;
+               }
+               BrTopic[] brTopic = new BrTopic[s];
+               
+               int totCnt = 0;
+               s = 0;
+               for( String key: mmList ) {
+                       int mCnt = 0;
+                       MirrorMaker mm = mmService.getMirrorMaker(key);
+                       if ( mm != null ) {
+                               mCnt = mm.getTopicCount();
+                       }
+                       logger.info( "Count for "+ key + ": " + mCnt);
+                       totCnt += mCnt;
+                       if (showDetail && mm!=null) {
+                               brTopic[s] =  new BrTopic();
+                               brTopic[s].setBrSource( mm.getSourceCluster());
+                               brTopic[s].setBrTarget(mm.getTargetCluster());
+                               brTopic[s].setMmAgentName(mm.getMmName());
+                               brTopic[s].setTopicCount(mm.getTopicCount());
+                               s++;
+                       }
+               }
+               
+               logger.info( "topicCount [all locations]: " + totCnt );
+               brTopic[s] =  new BrTopic();
+               brTopic[s].setBrSource("all");
+               brTopic[s].setBrTarget("all");
+               brTopic[s].setMmAgentName("n/a");
+               brTopic[s].setTopicCount(totCnt);
+               return brTopic;
+       }
+       
+       @PUT
+       @ApiOperation( value = "update MirrorMaker details", 
+               notes = "replace the topic list for a specific Bridge.  Use JSON Body for value to replace whitelist, "
+                               + "but if refreshFlag param is true, simply refresh using existing whitelist."
+                               + "If split param is true, spread whitelist over smaller mmagents.", 
+               response = MirrorMaker.class)
+       @ApiResponses( value = {
+           @ApiResponse( code = 200, message = "Success", response = BrTopic.class),
+           @ApiResponse( code = 400, message = "Error", response = ApiError.class )
+       })
+       public Response putBridgedTopics(@QueryParam("mmagent") String mmagent,
+                                                                       @QueryParam("refresh") Boolean refreshFlag,
+                                                                       @QueryParam("split") Boolean splitFlag,
+                                                                       MirrorMaker newBridge ){
+               logger.info( "putBridgeTopics() mmagent:" +  mmagent );
+
+               if ( mmagent != null ) {                // put topics between 2 bridged locations
+                       
+                       MirrorMaker mm = mmService.getMirrorMaker(mmagent);
+                       if ( mm == null ) {             
+                               return responseBuilder.notFound();
+                       } 
+                       
+                       if ( splitFlag != null && splitFlag == true ) {
+                               mm = mmService.splitMM( mm );
+                       } else if ( refreshFlag == null  ||  refreshFlag == false ) {
+                               logger.info( "setting whitelist from message body containing mmName=" + newBridge.getMmName());
+                               if ( ! mmagent.equals(newBridge.getMmName()) ){
+                                       logger.error( "mmagent query param does not match mmName in body");
+                                       return responseBuilder.error(new ApiError(BAD_REQUEST.getStatusCode(),
+                                                       "mmagent query param does not match mmName in body"));
+                               }
+                               mm.setTopics( newBridge.getTopics() );
+                       } else {
+                               logger.info( "refreshing whitelist from memory");
+                       }
+                       mmService.updateMirrorMaker(mm);
+                       return responseBuilder.success(mm);
+               }
+
+               else {
+                       logger.error( "mmagent is required for PUT");
+                       return responseBuilder.error(new ApiError(BAD_REQUEST.getStatusCode(), "mmagent is required for PUT"));
+               }
+
+       }
+}