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coderAbhikcoderAbhik
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1 parent 0e02589 commit cd67256

8 files changed

+281
-4
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‎build.gradle

+1
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@@ -14,6 +14,7 @@ repositories {
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dependencies {
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implementation 'org.springframework.boot:spring-boot-starter-web'
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testCompile('org.springframework.boot:spring-boot-starter-test')
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testImplementation('org.springframework.boot:spring-boot-starter-test') {
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exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
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}

‎src/main/java/com/beta/exception/CustomErrorResponse.java

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@@ -0,0 +1,37 @@
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package com.beta.exception;
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import java.io.Serializable;
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/**
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* @author Abhishek_Kumar
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* Class Description: POJO for respone entity in REST
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* */
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public class CustomErrorResponse implements Serializable {
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/**
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*
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*/
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private static final long serialVersionUID = 5838540944024728920L;
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private int status;
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private String error;
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public int getStatus() {
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return status;
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}
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public void setStatus(int status) {
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this.status = status;
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}
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public String getError() {
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return error;
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}
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public void setError(String error) {
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this.error = error;
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}
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}

‎src/main/java/com/beta/exception/CustomExceptionHandler.java

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package com.beta.exception;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.ControllerAdvice;
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import org.springframework.web.bind.annotation.ExceptionHandler;
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import org.springframework.web.context.request.WebRequest;
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import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
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/**
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* @author Abhishek_Kumar
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* Class Description: Handler for error/exception.
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* */
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@ControllerAdvice
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public class CustomExceptionHandler extends ResponseEntityExceptionHandler {
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@ExceptionHandler(RecordNotFoundException.class)
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public ResponseEntity<CustomErrorResponse> customHandleNotFound(Exception ex, WebRequest request) {
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CustomErrorResponse errors = new CustomErrorResponse();
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errors.setError(ex.getMessage());
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errors.setStatus(HttpStatus.NOT_FOUND.value());
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return new ResponseEntity<>(errors, HttpStatus.NOT_FOUND);
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}
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}

‎src/main/java/com/beta/exception/RecordNotFoundException.java

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@@ -0,0 +1,15 @@
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package com.beta.exception;
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/**
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* @author Abhishek_Kumar
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* Class Description: Record not found exception.
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* */
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public class RecordNotFoundException extends RuntimeException {
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public RecordNotFoundException(String msg) {
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super(msg);
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}
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}

‎src/main/java/com/beta/replyservice/ReplyController.java

+9-1
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@@ -1,19 +1,27 @@
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package com.beta.replyservice;
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import javax.naming.ServiceUnavailableException;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RestController;
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import org.springframework.web.bind.annotation.PathVariable;
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@RestController
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public class ReplyController {
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@Autowired
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ReplyHelperService replyHelperService;
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@GetMapping("/reply")
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public ReplyMessage replying() {
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return new ReplyMessage("Message is empty");
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}
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@GetMapping("/reply/{message}")
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public ReplyMessage replying(@PathVariable String message) {
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public ReplyMessage replying(@PathVariable String message) throws ServiceUnavailableException {
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message = replyHelperService.businessLogic(message);
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return new ReplyMessage(message);
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}
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}

‎src/main/java/com/beta/replyservice/ReplyHelperService.java

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@@ -0,0 +1,98 @@
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package com.beta.replyservice;
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import java.math.BigInteger;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import com.beta.exception.RecordNotFoundException;
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/**
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* @author Abhishek_Kumar
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* Class Description: Helper Service for Reply Service Application.
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*
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* */
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@Service
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public class ReplyHelperService {
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@Autowired
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ReplyController replyController;
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public String businessLogic(String str) throws RecordNotFoundException {
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if (str == null) {
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throw new RecordNotFoundException("Invalid input");
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}
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String sArray[] = str.split("-");
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if (sArray[0] == null || sArray[1] == null) {
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throw new RecordNotFoundException("Invalid input");
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}
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if (sArray[0].isEmpty() || sArray[1].isEmpty()) {
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throw new RecordNotFoundException("Invalid input");
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}
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String s = sArray[1];
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String reverseNum = reverseString(sArray[0]);
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int num;
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try {
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num = Integer.parseInt(reverseNum);
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} catch (NumberFormatException e) {
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throw new RecordNotFoundException("Invalid input");
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}
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while (num > 0) {
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int i = num % 10;
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if (i == 1) {
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s = reverseString(s);
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} else if (i == 2) {
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s = performMDEncryption(s);
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} else {
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throw new RecordNotFoundException("Invalid input");
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}
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num = num / 10;
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}
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return s;
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}
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public String performMDEncryption(String message) {
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try {
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// Static getInstance method is called with hashing MD5
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MessageDigest md = MessageDigest.getInstance("MD5");
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// digest() method is called to calculate message digest
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// of an input digest() return array of byte
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byte[] messageDigest = md.digest(message.getBytes());
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// Convert byte array into signum representation
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BigInteger no = new BigInteger(1, messageDigest);
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// Convert message digest into hex value
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String hashtext = no.toString(16);
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while (hashtext.length() < 32) {
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hashtext = "0" + hashtext;
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}
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return hashtext;
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}
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// For specifying wrong message digest algorithms
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catch (NoSuchAlgorithmException e) {
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throw new RuntimeException(e);
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}
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}
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public String reverseString(String message) {
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// reverse string
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StringBuffer sb = new StringBuffer(message);
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return sb.reverse().toString();
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}
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}

‎src/main/java/com/beta/replyservice/ReplyMessage.java

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Original file line numberDiff line numberDiff line change
@@ -1,7 +1,14 @@
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package com.beta.replyservice;
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3-
public class ReplyMessage {
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import java.io.Serializable;
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public class ReplyMessage implements Serializable{
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/**
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*
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*/
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private static final long serialVersionUID = 1L;
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private final String message;
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public ReplyMessage(String message) {

‎src/test/java/com/beta/replyservice/RestServiceApplicationTest.java

+85-2
Original file line numberDiff line numberDiff line change
@@ -1,12 +1,95 @@
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package com.beta.replyservice;
22

3-
import org.junit.jupiter.api.Test;
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import static org.junit.Assert.assertEquals;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.http.MediaType;
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import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
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import org.springframework.test.context.web.WebAppConfiguration;
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import org.springframework.test.web.servlet.MockMvc;
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import org.springframework.test.web.servlet.MvcResult;
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import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
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import org.springframework.test.web.servlet.setup.MockMvcBuilders;
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import org.springframework.web.context.WebApplicationContext;
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import com.fasterxml.jackson.core.JsonParseException;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.JsonMappingException;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import junit.framework.Assert;
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@SpringBootTest
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import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
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import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
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import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
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import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
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@RunWith(SpringJUnit4ClassRunner.class)
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@SpringBootTest(classes = RestServiceApplication.class)
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@WebAppConfiguration
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public class RestServiceApplicationTest {
938

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@Autowired
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ReplyController repl;
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@Autowired
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ReplyHelperService helper;
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protected MockMvc mvc;
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@Autowired
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WebApplicationContext webApplicationContext;
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@Before
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public void setUp() {
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mvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
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}
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public String mapToJson(Object obj) throws JsonProcessingException {
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ObjectMapper objectMapper = new ObjectMapper();
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return objectMapper.writeValueAsString(obj);
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}
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public <T> T mapFromJson(String json, Class<T> clazz) throws JsonParseException, JsonMappingException, IOException {
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ObjectMapper objectMapper = new ObjectMapper();
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return objectMapper.readValue(json, clazz);
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}
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@Test
67+
public void replyingTest() {
68+
String uri = "/reply/{message}";
69+
String str = "1-abhi";
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String inputJson = null;
72+
try {
73+
inputJson = mapToJson(str);
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} catch (JsonProcessingException e1) {
75+
// TODO Auto-generated catch block
76+
e1.printStackTrace();
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}
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MvcResult mvcResult = null;
80+
try {
81+
MvcResult grantAuthzResult = mvc.perform(MockMvcRequestBuilders.get(uri, str)
82+
.contentType(MediaType.APPLICATION_JSON_VALUE).content(inputJson.toString()))
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.andExpect(status().isOk()).andReturn();
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System.out.println(grantAuthzResult.getResponse().getContentAsString());
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} catch (Exception e) {
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System.out.println("Error happened while testing reply api");
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}
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}
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@Test
1194
public void contextLoads() {
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}

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