All steps updated

Author: Ranga Rao Karanam

Step01.zip

@@ -67,391 +67,3 @@ Second Snippet
 
 ## Exercises
 - Execute other services using xml and see what happens!
-
-## Files List
-### /pom.xml
-```
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
- <modelVersion>4.0.0</modelVersion>
- <groupId>com.in28minutes</groupId>
- <artifactId>springboot-for-beginners-example</artifactId>
- <version>0.0.1-SNAPSHOT</version>
- <name>Your First Spring Boot Example</name>
- <packaging>jar</packaging>
-
- <parent>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-parent</artifactId>
- <version>1.4.0.RELEASE</version>
- </parent>
-
- <dependencies>
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-web</artifactId>
- </dependency>
-
- <dependency>
- <groupId>com.fasterxml.jackson.dataformat</groupId>
- <artifactId>jackson-dataformat-xml</artifactId>
- </dependency>
- 
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-devtools</artifactId>
- <optional>true</optional>
- </dependency>
-
- </dependencies>
-
-
- <properties>
- <java.version>1.8</java.version>
- </properties>
-
- <build>
- <plugins>
- <plugin>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-maven-plugin</artifactId>
- </plugin>
- </plugins>
- </build>
-</project>
-```
-### /src/main/java/com/in28minutes/springboot/Application.java
-```
-package com.in28minutes.springboot;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.context.ApplicationContext;
-import org.springframework.stereotype.Component;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-@SpringBootApplication
-public class Application {
-
- public static void main(String[] args) {
- ApplicationContext ctx = SpringApplication.run(Application.class, args);
-
- }
-
- @RestController
- class SomeBean {
-
- @Autowired
- private SomeDependency someDependency;
-
- @RequestMapping("/")
- public String index() {
- return someDependency.getSomething();
- }
-
- }
-
- @Component
- class SomeDependency {
-
- public String getSomething() {
- return "Hello! Welcome!";
- }
-
- }
-
-}
-```
-### /src/main/java/com/in28minutes/springboot/controller/SurveyController.java
-```
-package com.in28minutes.springboot.controller;
-
-import java.net.URI;
-import java.util.List;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RestController;
-import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
-
-import com.in28minutes.springboot.model.Question;
-import com.in28minutes.springboot.service.SurveyService;
-
-@RestController
-class SurveyController {
- @Autowired
- private SurveyService surveyService;
-
- @GetMapping("/surveys/{surveyId}/questions")
- public List<Question> retrieveQuestions(@PathVariable String surveyId) {
- return surveyService.retrieveQuestions(surveyId);
- }
-
- @GetMapping(path = "/surveys/{surveyId}/questions/{questionId}")
- public Question retrieveQuestion(@PathVariable String surveyId,
- @PathVariable String questionId) {
- return surveyService.retrieveQuestion(surveyId, questionId);
- }
-
- @PostMapping("/surveys/{surveyId}/questions")
- ResponseEntity<?> add(@PathVariable String surveyId,
- @RequestBody Question question) {
-
- Question createdTodo = surveyService.addQuestion(surveyId, question);
-
- if (createdTodo == null) {
- return ResponseEntity.noContent().build();
- }
-
- URI location = ServletUriComponentsBuilder.fromCurrentRequest()
- .path("/{id}").buildAndExpand(createdTodo.getId()).toUri();
-
- return ResponseEntity.created(location).build();
-
- }
-
-}
-```
-### /src/main/java/com/in28minutes/springboot/model/Question.java
-```
-package com.in28minutes.springboot.model;
-
-import java.util.List;
-
-public class Question {
- private String id;
- private String description;
- private String correctAnswer;
- private List<String> options;
-
- // Needed by Caused by: com.fasterxml.jackson.databind.JsonMappingException:
- // Can not construct instance of com.in28minutes.springboot.model.Question:
- // no suitable constructor found, can not deserialize from Object value
- // (missing default constructor or creator, or perhaps need to add/enable
- // type information?)
- public Question() {
-
- }
-
- public Question(String id, String description, String correctAnswer,
- List<String> options) {
- super();
- this.id = id;
- this.description = description;
- this.correctAnswer = correctAnswer;
- this.options = options;
- }
-
- public String getId() {
- return id;
- }
-
- public void setId(String id) {
- this.id = id;
- }
-
- public String getDescription() {
- return description;
- }
-
- public String getCorrectAnswer() {
- return correctAnswer;
- }
-
- public List<String> getOptions() {
- return options;
- }
-
- @Override
- public String toString() {
- return String
- .format("Question [id=%s, description=%s, correctAnswer=%s, options=%s]",
- id, description, correctAnswer, options);
- }
-
- @Override
- public int hashCode() {
- final int prime = 31;
- int result = 1;
- result = prime * result + (id == null ? 0 : id.hashCode());
- return result;
- }
-
- @Override
- public boolean equals(Object obj) {
- if (this == obj) {
- return true;
- }
- if (obj == null) {
- return false;
- }
- if (getClass() != obj.getClass()) {
- return false;
- }
- Question other = (Question) obj;
- if (id == null) {
- if (other.id != null) {
- return false;
- }
- } else if (!id.equals(other.id)) {
- return false;
- }
- return true;
- }
-
-}
-```
-### /src/main/java/com/in28minutes/springboot/model/Survey.java
-```
-package com.in28minutes.springboot.model;
-
-import java.util.List;
-
-public class Survey {
- private String id;
- private String title;
- private String description;
- private List<Question> questions;
-
- public Survey(String id, String title, String description,
- List<Question> questions) {
- super();
- this.id = id;
- this.title = title;
- this.description = description;
- this.questions = questions;
- }
-
- public String getId() {
- return id;
- }
-
- public String getTitle() {
- return title;
- }
-
- public String getDescription() {
- return description;
- }
-
- public List<Question> getQuestions() {
- return questions;
- }
-
- @Override
- public String toString() {
- return String.format(
- "Survey [id=%s, title=%s, description=%s, questions=%s]", id,
- title, description, questions);
- }
-
-}
-```
-### /src/main/java/com/in28minutes/springboot/service/SurveyService.java
-```
-package com.in28minutes.springboot.service;
-
-import java.math.BigInteger;
-import java.security.SecureRandom;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
-import org.springframework.stereotype.Component;
-
-import com.in28minutes.springboot.model.Question;
-import com.in28minutes.springboot.model.Survey;
-
-@Component
-public class SurveyService {
- private static List<Survey> surveys = new ArrayList<>();
- static {
- Question question1 = new Question("Question1",
- "Largest Country in the World", "Russia", Arrays.asList(
- "India", "Russia", "United States", "China"));
- Question question2 = new Question("Question2",
- "Most Populus Country in the World", "China", Arrays.asList(
- "India", "Russia", "United States", "China"));
- Question question3 = new Question("Question3",
- "Highest GDP in the World", "United States", Arrays.asList(
- "India", "Russia", "United States", "China"));
- Question question4 = new Question("Question4",
- "Second largest english speaking country", "India",
- Arrays.asList("India", "Russia", "United States", "China"));
-
- List<Question> questions = new ArrayList<>(Arrays.asList(question1,
- question2, question3, question4));
-
- Survey survey = new Survey("Survey1", "My Favorite Survey",
- "Description of the Survey", questions);
-
- surveys.add(survey);
- }
-
- public List<Survey> retrieveAllSurveys() {
- return surveys;
- }
-
- public Survey retrieveSurvey(String surveyId) {
- for (Survey survey : surveys) {
- if (survey.getId().equals(surveyId)) {
- return survey;
- }
- }
- return null;
- }
-
- public List<Question> retrieveQuestions(String surveyId) {
- Survey survey = retrieveSurvey(surveyId);
-
- if (survey == null) {
- return null;
- }
-
- return survey.getQuestions();
- }
-
- public Question retrieveQuestion(String surveyId, String questionId) {
- Survey survey = retrieveSurvey(surveyId);
-
- if (survey == null) {
- return null;
- }
-
- for (Question question : survey.getQuestions()) {
- if (question.getId().equals(questionId)) {
- return question;
- }
- }
-
- return null;
- }
-
- private SecureRandom random = new SecureRandom();
-
- public Question addQuestion(String surveyId, Question question) {
- Survey survey = retrieveSurvey(surveyId);
-
- if (survey == null) {
- return null;
- }
-
- String randomId = new BigInteger(130, random).toString(32);
- question.setId(randomId);
-
- survey.getQuestions().add(question);
-
- return question;
- }
-}
-```
-### /src/main/resources/application.properties
-```
-logging.level.org.springframework: DEBUG
-```