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Initial Changes for BAEL-5297

This commit is contained in:
Amitabh Tiwari 2022-06-30 15:11:18 +05:30
parent 6beec696aa
commit 8bd7b32499
5 changed files with 58 additions and 3 deletions
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4
spring-cloud-modules/spring-cloud-openfeign/src/main/java/com/baeldung/cloud/openfeign/exception/NotFoundException.java
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@ -2,7 +2,9 @@ package com.baeldung.cloud.openfeign.exception;
public class NotFoundException extends Exception {
public NotFoundException() {
private static final long serialVersionUID = 1L;
public NotFoundException() {
}
public NotFoundException(String message) {

5
spring-cloud-modules/spring-cloud-openfeign/src/main/java/com/baeldung/cloud/openfeign/fileupload/controller/FileController.java
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@ -6,6 +6,7 @@ import org.springframework.web.bind.annotation.RequestPart;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.baeldung.cloud.openfeign.exception.NotFoundException;
import com.baeldung.cloud.openfeign.fileupload.service.UploadService;
@RestController
@ -26,8 +27,8 @@ public class FileController {
}
@PostMapping(value = "/upload-error")
public String handleFileUploadError(@RequestPart(value = "file") MultipartFile file) {
return service.uploadFile(file);
public String handleFileUploadError(@RequestPart(value = "file") MultipartFile file) throws NotFoundException {
return service.uploadFileWithCause(file);
}
}

15
spring-cloud-modules/spring-cloud-openfeign/src/main/java/com/baeldung/cloud/openfeign/fileupload/service/FileUploadClient.java Normal file
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@ -0,0 +1,15 @@
package com.baeldung.cloud.openfeign.fileupload.service;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestPart;
import org.springframework.web.multipart.MultipartFile;
import com.baeldung.cloud.openfeign.fileupload.config.FeignSupportConfig;
@FeignClient(name = "file", url = "http://localhost:8081", configuration = FeignSupportConfig.class, fallbackFactory = FileUploadClientFallbackFactory.class)
public interface FileUploadClient {
@PostMapping(value = "/upload-file", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
String fileUpload(@RequestPart(value = "file") MultipartFile file);
}

30
spring-cloud-modules/spring-cloud-openfeign/src/main/java/com/baeldung/cloud/openfeign/fileupload/service/FileUploadClientFallbackFactory.java Normal file
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@ -0,0 +1,30 @@
package com.baeldung.cloud.openfeign.fileupload.service;
import org.springframework.cloud.openfeign.FallbackFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import com.baeldung.cloud.openfeign.exception.BadRequestException;
import com.baeldung.cloud.openfeign.exception.NotFoundException;
@Component
public class FileUploadClientFallbackFactory implements FallbackFactory<FileUploadClient> {
@Override
public FileUploadClient create(Throwable cause) {
return new FileUploadClient() {
@Override
public String fileUpload(MultipartFile file) {
if (cause instanceof BadRequestException) {
return "Bad Request!!!";
}
if (cause instanceof NotFoundException) {
return "Not Found!!!";
}
if (cause instanceof Exception) {
return "Exception!!!";
}
return "Successfully Uploaded file!!!";
}
};
}
}

7
spring-cloud-modules/spring-cloud-openfeign/src/main/java/com/baeldung/cloud/openfeign/fileupload/service/UploadService.java
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@ -4,6 +4,8 @@ import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import com.baeldung.cloud.openfeign.exception.NotFoundException;
import feign.Feign;
import feign.Response;
import feign.form.spring.SpringFormEncoder;
@ -14,6 +16,8 @@ public class UploadService {
@Autowired
private UploadClient client;
@Autowired
private FileUploadClient fileUploadClient;
public boolean uploadFileWithManualClient(MultipartFile file) {
UploadResource fileUploadResource = Feign.builder().encoder(new SpringFormEncoder())
@ -30,4 +34,7 @@ public class UploadService {
return client.fileUpload(file);
}
public String uploadFileWithCause(MultipartFile file) throws NotFoundException {
return fileUploadClient.fileUpload(file);
}
}