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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 jakarta.ws.rs.Consumes;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.PUT;
import jakarta.ws.rs.Path;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.QueryParam;
import jakarta.ws.rs.core.MediaType;
import jakarta.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 jakarta.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"));
}
}
}
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