Package co.cask.cdap.common.exception

Examples of co.cask.cdap.common.exception.HandlerException

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    Object msg = event.getMessage();

    if (msg instanceof HttpChunk) {
      // This case below should never happen this would mean we get Chunks before HTTPMessage.
      if (chunkSender == null) {
        throw new HandlerException(HttpResponseStatus.INTERNAL_SERVER_ERROR,
                                   "Chunk received and event sender is null");
      }
      chunkSender.send(msg);

    } else if (msg instanceof HttpRequest) {
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  private WrappedDiscoverable getDiscoverable(final HttpRequest httpRequest,
                                              final InetSocketAddress address) {
    EndpointStrategy strategy = serviceLookup.getDiscoverable(address.getPort(), httpRequest);
    if (strategy == null) {
      throw  new HandlerException(HttpResponseStatus.SERVICE_UNAVAILABLE,
                                  String.format("No endpoint strategy found for request : %s",
                                  httpRequest.getUri()));
    }
    Discoverable discoverable = strategy.pick();
    if (discoverable == null) {
      throw  new HandlerException(HttpResponseStatus.SERVICE_UNAVAILABLE,
                                  String.format("No discoverable found for request : %s",
                                                httpRequest.getUri()));
    }
    return new WrappedDiscoverable(discoverable);
  }
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      } else if (method.equals("truncate")) {
        opExecutorClient.truncate(instanceName);
      } else if (method.equals("upgrade")) {
        opExecutorClient.upgrade(instanceName);
      } else {
        throw new HandlerException(HttpResponseStatus.NOT_FOUND, "Invalid admin operation: " + method);
      }

      DatasetAdminOpResponse response = new DatasetAdminOpResponse(result, message);
      responder.sendJson(HttpResponseStatus.OK, response);
    } catch (HandlerException e) {
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  }

  private DatasetAdmin getDatasetAdmin(String instanceName) throws IOException, DatasetManagementException {
    DatasetAdmin admin = dsFramework.getAdmin(instanceName, null);
    if (admin == null) {
      throw new HandlerException(HttpResponseStatus.NOT_FOUND,
                                 "Couldn't obtain DatasetAdmin for dataset instance " + instanceName);
    }
    return admin;
  }
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  private DatasetAdminOpResponse executeAdminOp(String instanceName, String opName)
    throws IOException, HandlerException {

    HttpResponse httpResponse = HttpRequests.execute(HttpRequest.post(resolve(instanceName, opName)).build());
    if (httpResponse.getResponseCode() != 200) {
      throw new HandlerException(HttpResponseStatus.valueOf(httpResponse.getResponseCode()),
                                 httpResponse.getResponseMessage());
    }

    return GSON.fromJson(new String(httpResponse.getResponseBody()), DatasetAdminOpResponse.class);
  }
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                         path));
  }

  private void verifyResponse(HttpResponse httpResponse) {
    if (httpResponse.getResponseCode() != 200) {
      throw new HandlerException(HttpResponseStatus.valueOf(httpResponse.getResponseCode()),
                                 httpResponse.getResponseMessage());
    }
  }
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Related Classes of co.cask.cdap.common.exception.HandlerException

  • co.cask.cdap.data2.datafabric.dataset.service.DatasetInstanceHandler
  • co.cask.cdap.data2.datafabric.dataset.service.executor.DatasetAdminOpHTTPHandler
  • co.cask.cdap.data2.datafabric.dataset.service.executor.RemoteDatasetOpExecutor
  • co.cask.cdap.gateway.router.handlers.HttpRequestHandler
  • org.jboss.netty.handler.codec.http.DefaultHttpResponse
  • org.jboss.netty.handler.codec.http.HttpResponse
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