@RequestMapping(
value = "/{configName}",
method = {RequestMethod.DELETE})
@ResponseBody
public void deleteConfig(@PathVariable String configName) throws IOException {
StreamingConfig config = streamingService.getStreamingManager().getStreamingConfig(configName);
KafkaConfig kafkaConfig = kafkaConfigService.getKafkaConfig(configName);
if (null == config) {
throw new NotFoundException("StreamingConfig with name " + configName + " not found..");
}
try {
streamingService.dropStreamingConfig(config);
kafkaConfigService.dropKafkaConfig(kafkaConfig);
} catch (Exception e) {
logger.error(e.getLocalizedMessage(), e);
throw new InternalErrorException(
"Failed to delete StreamingConfig. " + " Caused by: " + e.getMessage(), e);
}
}
/**
* create Streaming Schema
*
* @throws java.io.IOException
*/
@RequestMapping(
value = "",
method = {RequestMethod.POST})
@ResponseBody
public StreamingRequest saveStreamingConfig(@RequestBody StreamingRequest streamingRequest) {
String project = streamingRequest.getProject();
TableDesc tableDesc = deserializeTableDesc(streamingRequest);
StreamingConfig streamingConfig = deserializeSchemalDesc(streamingRequest);
KafkaConfig kafkaConfig = deserializeKafkaSchemalDesc(streamingRequest);
boolean saveStreamingSuccess = false, saveKafkaSuccess = false;
try {
tableDesc.setUuid(UUID.randomUUID().toString());
MetadataManager metaMgr = MetadataManager.getInstance(KylinConfig.getInstanceFromEnv());
metaMgr.saveSourceTable(tableDesc);
cubeMgmtService.syncTableToProject(new String[] {tableDesc.getIdentity()}, project);
} catch (IOException e) {
throw new BadRequestException("Failed to add streaming table.");
}
streamingConfig.setName(tableDesc.getIdentity());
kafkaConfig.setName(tableDesc.getIdentity());
try {
if (StringUtils.isEmpty(streamingConfig.getName())) {
logger.info("StreamingConfig should not be empty.");
throw new BadRequestException("StremingConfig name should not be empty.");
}
try {
streamingConfig.setUuid(UUID.randomUUID().toString());
streamingService.createStreamingConfig(streamingConfig);
saveStreamingSuccess = true;
} catch (IOException e) {
logger.error("Failed to save StreamingConfig:" + e.getLocalizedMessage(), e);
throw new InternalErrorException(
"Failed to save StreamingConfig: " + e.getLocalizedMessage());
}
try {
kafkaConfig.setUuid(UUID.randomUUID().toString());
kafkaConfigService.createKafkaConfig(kafkaConfig);
saveKafkaSuccess = true;
} catch (IOException e) {
try {
streamingService.dropStreamingConfig(streamingConfig);
} catch (IOException e1) {
throw new InternalErrorException(
"StreamingConfig is created, but failed to create KafkaConfig: "
+ e.getLocalizedMessage());
}
logger.error("Failed to save KafkaConfig:" + e.getLocalizedMessage(), e);
throw new InternalErrorException("Failed to save KafkaConfig: " + e.getLocalizedMessage());
}
} finally {
if (saveKafkaSuccess == false || saveStreamingSuccess == false) {
if (saveStreamingSuccess == true) {
StreamingConfig sConfig =
streamingService.getStreamingManager().getStreamingConfig(streamingConfig.getName());
try {
streamingService.dropStreamingConfig(sConfig);
} catch (IOException e) {
throw new InternalErrorException(
"Action failed and failed to rollback the created streaming config: "
+ e.getLocalizedMessage());
}
}
if (saveKafkaSuccess == true) {
try {
KafkaConfig kConfig = kafkaConfigService.getKafkaConfig(kafkaConfig.getName());
kafkaConfigService.dropKafkaConfig(kConfig);
} catch (IOException e) {
throw new InternalErrorException(
"Action failed and failed to rollback the created kafka config: "
+ e.getLocalizedMessage());
}
}
}
}
streamingRequest.setSuccessful(true);
return streamingRequest;
}