public class DmaapMessageHandler {
private static final Logger logger = LoggerFactory.getLogger(DmaapMessageHandler.class);
private static Gson gson = new GsonBuilder() //
- .create(); //
+ .create(); //
private final AsyncRestClient dmaapClient;
private final AsyncRestClient agentClient;
try {
DmaapRequestMessage dmaapRequestMessage = gson.fromJson(msg, ImmutableDmaapRequestMessage.class);
return this.invokePolicyAgent(dmaapRequestMessage) //
- .onErrorResume(t -> handleAgentCallError(t, dmaapRequestMessage)) //
- .flatMap(response -> sendDmaapResponse(response.getBody(), dmaapRequestMessage,
- response.getStatusCode()));
+ .onErrorResume(t -> handleAgentCallError(t, dmaapRequestMessage)) //
+ .flatMap(
+ response -> sendDmaapResponse(response.getBody(), dmaapRequestMessage, response.getStatusCode()));
} catch (Exception e) {
String errorMsg = "Received unparsable message from DMAAP: \"" + msg + "\", reason: " + e.getMessage();
return Mono.error(new ServiceException(errorMsg)); // Cannot make any response
}
private Mono<ResponseEntity<String>> handleAgentCallError(Throwable error,
- DmaapRequestMessage dmaapRequestMessage) {
+ DmaapRequestMessage dmaapRequestMessage) {
logger.debug("Agent call failed: {}", error.getMessage());
HttpStatus status = HttpStatus.INTERNAL_SERVER_ERROR;
String errorMessage = error.getMessage();
logger.warn("Unexpected exception ", error);
}
return sendDmaapResponse(errorMessage, dmaapRequestMessage, status) //
- .flatMap(notUsed -> Mono.empty());
+ .flatMap(notUsed -> Mono.empty());
}
private Mono<ResponseEntity<String>> invokePolicyAgent(DmaapRequestMessage dmaapRequestMessage) {
}
private Mono<String> sendDmaapResponse(String response, DmaapRequestMessage dmaapRequestMessage,
- HttpStatus status) {
+ HttpStatus status) {
return createDmaapResponseMessage(dmaapRequestMessage, response, status) //
- .flatMap(this::sendToDmaap) //
- .onErrorResume(this::handleResponseCallError);
+ .flatMap(this::sendToDmaap) //
+ .onErrorResume(this::handleResponseCallError);
}
private Mono<String> sendToDmaap(String body) {
}
private Mono<String> createDmaapResponseMessage(DmaapRequestMessage dmaapRequestMessage, String response,
- HttpStatus status) {
+ HttpStatus status) {
DmaapResponseMessage dmaapResponseMessage = ImmutableDmaapResponseMessage.builder() //
- .status(status.toString()) //
- .message(response == null ? "" : response) //
- .type("response") //
- .correlationId(dmaapRequestMessage.correlationId() == null ? "" : dmaapRequestMessage.correlationId()) //
- .originatorId(dmaapRequestMessage.originatorId() == null ? "" : dmaapRequestMessage.originatorId()) //
- .requestId(dmaapRequestMessage.requestId() == null ? "" : dmaapRequestMessage.requestId()) //
- .timestamp(dmaapRequestMessage.timestamp() == null ? "" : dmaapRequestMessage.timestamp()) //
- .build();
+ .status(status.toString()) //
+ .message(response == null ? "" : response) //
+ .type("response") //
+ .correlationId(dmaapRequestMessage.correlationId() == null ? "" : dmaapRequestMessage.correlationId()) //
+ .originatorId(dmaapRequestMessage.originatorId() == null ? "" : dmaapRequestMessage.originatorId()) //
+ .requestId(dmaapRequestMessage.requestId() == null ? "" : dmaapRequestMessage.requestId()) //
+ .timestamp(dmaapRequestMessage.timestamp() == null ? "" : dmaapRequestMessage.timestamp()) //
+ .build();
String str = gson.toJson(dmaapResponseMessage);
return Mono.just(str);