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/*
* ============LICENSE_START=======================================================
* ONAP : DataLake
* ================================================================================
* Copyright 2019 China Mobile
*=================================================================================
* 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.datalake.feeder.controller;
import io.swagger.annotations.ApiOperation;
import org.onap.datalake.feeder.controller.domain.PostReturnBody;
import org.onap.datalake.feeder.domain.Kafka;
import org.onap.datalake.feeder.dto.KafkaConfig;
import org.onap.datalake.feeder.repository.KafkaRepository;
import org.onap.datalake.feeder.service.KafkaService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.*;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
/**
* This controller manages kafka settings
*
* @author guochunmeng
*/
@RestController
@RequestMapping(value = "/kafkas", produces = { MediaType.APPLICATION_JSON_VALUE })
public class KafkaController {
private final Logger log = LoggerFactory.getLogger(this.getClass());
@Autowired
private KafkaService kafkaService;
@Autowired
private KafkaRepository kafkaRepository;
@PostMapping("")
@ResponseBody
@ApiOperation(value="Create a kafka.")
public PostReturnBody<KafkaConfig> createKafka(@RequestBody KafkaConfig kafkaConfig, BindingResult result, HttpServletResponse response) throws IOException {
if (result.hasErrors()) {
sendError(response, 400, "Error parsing KafkaConfig : "+result.toString());
return null;
}
Kafka oldKafka = kafkaService.getKafkaById(kafkaConfig.getId());
if (oldKafka != null) {
sendError(response, 400, "kafka is exist "+kafkaConfig.getId());
return null;
} else {
Kafka kafka = null;
try {
kafka = kafkaService.fillKafkaConfiguration(kafkaConfig);
} catch (Exception e) {
log.debug("FillKafkaConfiguration failed", e.getMessage());
sendError(response, 400, "Error FillKafkaConfiguration: "+e.getMessage());
return null;
}
kafkaRepository.save(kafka);
log.info("Kafka save successed");
return mkPostReturnBody(200, kafka);
}
}
@PutMapping("/{id}")
@ResponseBody
@ApiOperation(value="Update a kafka.")
public PostReturnBody<KafkaConfig> updateKafka(@RequestBody KafkaConfig kafkaConfig, BindingResult result, @PathVariable int id, HttpServletResponse response) throws IOException {
if (result.hasErrors()) {
sendError(response, 400, "Error parsing KafkaConfig : "+result.toString());
return null;
}
Kafka oldKafka = kafkaService.getKafkaById(id);
if (oldKafka == null) {
sendError(response, 400, "Kafka not found: "+id);
return null;
} else {
try {
kafkaService.fillKafkaConfiguration(kafkaConfig, oldKafka);
} catch (Exception e) {
log.debug("FillKafkaConfiguration failed", e.getMessage());
sendError(response, 400, "Error FillKafkaConfiguration: "+e.getMessage());
return null;
}
kafkaRepository.save(oldKafka);
log.info("kafka update successed");
return mkPostReturnBody(200, oldKafka);
}
}
@DeleteMapping("/{id}")
@ResponseBody
@ApiOperation(value="delete a kafka.")
public void deleteKafka(@PathVariable("id") int id, HttpServletResponse response) throws IOException{
Kafka oldKafka = kafkaService.getKafkaById(id);
if (oldKafka == null) {
sendError(response, 400, "kafka not found "+id);
} else {
kafkaRepository.delete(oldKafka);
response.setStatus(204);
}
}
@GetMapping("")
@ResponseBody
@ApiOperation(value="List all Kafkas")
public List<KafkaConfig> queryAllKafka(){
return kafkaService.getAllKafka();
}
private PostReturnBody<KafkaConfig> mkPostReturnBody(int statusCode, Kafka kafka) {
PostReturnBody<KafkaConfig> retBody = new PostReturnBody<>();
retBody.setStatusCode(statusCode);
retBody.setReturnBody(kafka.getKafkaConfig());
return retBody;
}
private void sendError(HttpServletResponse response, int sc, String msg) throws IOException {
log.info(msg);
response.sendError(sc, msg);
}
}
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