commit

pom.xml

@@ -27,6 +27,14 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
+        <!-- https://mvnrepository.com/artifact/org.thymeleaf/thymeleaf -->
+        <dependency>
+            <groupId>org.thymeleaf</groupId>
+            <artifactId>thymeleaf</artifactId>
+            <version>3.0.11.RELEASE</version>
+        </dependency>
+
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>

src/main/java/io/zipcoder/tc_spring_poll_application/controller/ComputeResultController.java

@@ -0,0 +1,33 @@
+package io.zipcoder.tc_spring_poll_application.controller;
+
+import io.zipcoder.tc_spring_poll_application.domain.Vote;
+import io.zipcoder.tc_spring_poll_application.domain.repositories.VoteRepository;
+import io.zipcoder.tc_spring_poll_application.dtos.VoteResult;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class ComputeResultController {
+
+    private VoteRepository voteRepository;
+
+    @Autowired
+    public ComputeResultController(VoteRepository voteRepository) {
+        this.voteRepository = voteRepository;
+    }
+
+    @RequestMapping(value = "/computeresult", method = RequestMethod.GET)
+
+    public ResponseEntity<?> computeResult(@RequestParam Long pollId) {
+        VoteResult voteResult = new VoteResult();
+        Iterable<Vote> allVotes = voteRepository.findVotesByPoll(pollId);
+
+        //TODO: Implement algorithm to count votes
+        return new ResponseEntity<VoteResult>(voteResult, HttpStatus.OK);
+    }
+}

src/main/java/io/zipcoder/tc_spring_poll_application/controller/PollController.java

@@ -0,0 +1,80 @@
+package io.zipcoder.tc_spring_poll_application.controller;
+
+import io.zipcoder.tc_spring_poll_application.domain.Poll;
+import io.zipcoder.tc_spring_poll_application.domain.repositories.PollRepository;
+import io.zipcoder.tc_spring_poll_application.exception.ResourceNotFoundException;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
+
+import java.net.URI;
+
+/*
+Create a `PollController` class in the `controller` sub package.
+	* `PollController` signature should be `annotated` with `@RestController`
+	* PollController` has a `pollRepository` instance variable of type `PollRepository`
+	* Create a constructor that accepts a `PollRepository` argument and assigns its
+	* value to the `pollRepository` member variable.
+	* Mark the constructor with the `@Autowired` annotation.
+
+ */
+@RestController
+public class PollController {
+
+
+    PollRepository pollRepository;
+
+
+    @Autowired
+    public PollController(PollRepository pollRepository1) {
+        this.pollRepository = pollRepository1;
+
+    }
+
+    @RequestMapping(value = "/polls", method = RequestMethod.GET)
+    public ResponseEntity<Iterable<Poll>> getAllPolls() {
+        Iterable<Poll> allPolls = pollRepository.findAll();
+        return new ResponseEntity<>(allPolls, HttpStatus.OK);
+    }
+
+    @RequestMapping(value = "/polls", method = RequestMethod.POST)
+
+    public ResponseEntity<?> createPoll(@RequestBody Poll poll) {
+        poll = pollRepository.save(poll);
+
+        URI newPollUri = ServletUriComponentsBuilder
+                .fromCurrentRequest()
+                .path("/{id}")
+                .buildAndExpand(poll.getId())
+                .toUri();
+
+        return new ResponseEntity<>(null, HttpStatus.CREATED);
+    }
+
+    @RequestMapping(value = "/polls/{pollId}", method = RequestMethod.GET)
+    public ResponseEntity<?> getPoll(@PathVariable Long pollId) {
+        Poll p = pollRepository.findOne(pollId);
+        return new ResponseEntity<>(p, HttpStatus.OK);
+    }
+
+    @RequestMapping(value = "/polls/{pollId}", method = RequestMethod.PUT)
+    public ResponseEntity<?> updatePoll(@RequestBody Poll poll, @PathVariable Long pollId) {
+        // Save the entity
+        Poll p = pollRepository.save(poll);
+        return new ResponseEntity<>(HttpStatus.OK);
+    }
+
+    @RequestMapping(value = "/polls/{pollId}", method = RequestMethod.DELETE)
+    public ResponseEntity<?> deletePoll(@PathVariable Long pollId) {
+        pollRepository.delete(pollId);
+        return new ResponseEntity<>(HttpStatus.OK);
+    }
+
+    public void verifypoll() throws ResourceNotFoundException {
+        throw new ResourceNotFoundException();
+    }
+}
+
+

src/main/java/io/zipcoder/tc_spring_poll_application/controller/VoteController.java

@@ -0,0 +1,49 @@
+package io.zipcoder.tc_spring_poll_application.controller;
+
+import io.zipcoder.tc_spring_poll_application.domain.Vote;
+import io.zipcoder.tc_spring_poll_application.domain.repositories.VoteRepository;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
+
+
+@RestController
+    public class VoteController {
+
+    private VoteRepository voteRepository;
+
+    @Autowired
+    public VoteController(VoteRepository voteRepository) {
+        this.voteRepository = voteRepository;
+    }
+
+    @RequestMapping(value = "/polls/{pollId}/votes", method = RequestMethod.POST)
+
+    public ResponseEntity<?> createVote(@PathVariable Long pollId, @RequestBody Vote
+            vote) {
+        vote = voteRepository.save(vote);
+        // Set the headers for the newly created resource
+
+        HttpHeaders responseHeaders = new HttpHeaders();
+
+        responseHeaders.setLocation(ServletUriComponentsBuilder.
+                fromCurrentRequest().path("/{id}").buildAndExpand(vote.getId()).toUri());
+        return new ResponseEntity<>(null, responseHeaders, HttpStatus.CREATED);
+    }
+
+    @RequestMapping(value = "/polls/votes", method = RequestMethod.GET)
+    public Iterable<Vote> getAllVotes() {
+        return voteRepository.findAll();
+    }
+
+    @RequestMapping(value = "/polls/{pollId}/votes", method = RequestMethod.GET)
+    public Iterable<Vote> getVote(@PathVariable Long pollId) {
+        return voteRepository.findById(pollId);
+
+    }
+}
+

src/main/java/io/zipcoder/tc_spring_poll_application/domain/Option.java

@@ -0,0 +1,50 @@
+package io.zipcoder.tc_spring_poll_application.domain;
+
+import javax.persistence.*;
+
+/*
+ Create an `Option` class in the `domain` sub-package.
+* `Option` class signature is annotated with `@Entity`
+* `Option` has an `id` instance variable of type `Long`
+	* `id` should be `annotated` with
+		* `@Id`
+			* denotes primary key of this entity
+		* `@GeneratedValue`
+			* configures the way of increment of the specified `column(field)`
+		* `@Column(name = "OPTION_ID")`
+			* specifies mapped column for a persistent property or field
+			* without `@Column` specified, the framework assumes the field's variable-name is the persistent property name.
+
+* `Option` has a `value` instance variable of type `String`
+	* `value` should be `annotated` with
+		* `@Column(name = "OPTION_VALUE")`
+
+* Create a `getter` and `setter` for each of the respective instance variables.
+ */
+@Entity
+public class Option {
+
+    @Id
+    @GeneratedValue(strategy= GenerationType.IDENTITY )
+    @Column(name="OPTION_ID")
+   private long id;
+
+    @Column(name = "OPTION_VALUE")
+    private  String value;
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+}

src/main/java/io/zipcoder/tc_spring_poll_application/domain/Poll.java

@@ -0,0 +1,79 @@
+package io.zipcoder.tc_spring_poll_application.domain;
+
+import org.hibernate.validator.constraints.NotEmpty;
+
+import javax.persistence.*;
+import javax.validation.constraints.Size;
+import java.util.Set;
+
+/*
+Create a `Poll` class in the `domain` sub-package.
+* `Poll` class signature is annotated with `@Entity`
+* `Poll` has an `id` instance variable of type `Long`
+	* `id` should be `annotated` with
+		* `@Id`
+		* `@GeneratedValue`
+		* `Column(name = "POLL_ID")`
+
+* `Poll` has a `question` instance variable of type `String`
+	* `question` should be `annotated` with
+		* `@Column(name = "QUESTION")`
+
+* `Poll` has an `options` instance variable of type `Set` of `Option`
+	* `options` should be `annotated` with
+		* `@OneToMany(cascade = CascadeType.ALL)`
+		* `@JoinColumn(name = "POLL_ID")`
+		* `@OrderBy`
+
+* Create a `getter` and `setter` for each of the respective instance variables.
+ */
+@Entity
+public class Poll {
+
+
+    @Id
+    @GeneratedValue
+    @Column(name="POLL_ID")
+
+   private long id;
+    @Column(name = "QUESTION")
+
+   private  String question;
+
+    @OneToMany(cascade = CascadeType.ALL)
+		 @JoinColumn(name = "POLL_ID")
+		@OrderBy
+      private  Set<Option> options;
+
+
+    public long getId() {
+
+        return id;
+    }
+
+    public void setId(long id) {
+
+        this.id = id;
+    }
+
+    public String getQuestion() {
+
+        return question;
+    }
+    @NotEmpty
+
+    public void setQuestion(String question) {
+
+        this.question = question;
+    }
+    @Size(min=2, max = 6)
+    public Set<Option> getOptions() {
+        return options;
+    }
+
+    public void setOptions(Set<Option> options) {
+        this.options = options;
+    }
+
+
+}

src/main/java/io/zipcoder/tc_spring_poll_application/domain/Vote.java

@@ -0,0 +1,50 @@
+package io.zipcoder.tc_spring_poll_application.domain;
+
+import javax.persistence.*;
+
+/*
+Create a `Vote` class in the `domain` sub-package.
+* `Vote` class signature is annotated with `@Entity`
+* `Vote` has an `id` instance variable of type `Long`
+	* `id` should be `annotated` with
+		* `@Id`
+		* `@GeneratedValue`
+		* `Column(name = "VOTE_ID")`
+
+* `Vote` has a `option` instance variable of type `Option`
+	* `option` should be `annotated` with
+		* `@ManyToOne`
+		* `@JoinColumn(name = "OPTION_ID")`
+
+* Create a `getter` and `setter` for each of the respective instance variables.
+
+
+ */
+@Entity
+public class Vote {
+    @Id
+    @GeneratedValue
+    @Column (name="VOTE_ID")
+    private Long id;
+
+    @ManyToOne
+            @JoinColumn (name="OPTION_ID")
+    Option option;
+
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Option getOption() {
+        return option;
+    }
+
+    public void setOption(Option option) {
+        this.option = option;
+    }
+}

src/main/java/io/zipcoder/tc_spring_poll_application/domain/repositories/OptionRepository.java

@@ -0,0 +1,9 @@
+package io.zipcoder.tc_spring_poll_application.domain.repositories;
+
+import io.zipcoder.tc_spring_poll_application.domain.Option;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface OptionRepository  extends CrudRepository<Option, Long> {
+}

src/main/java/io/zipcoder/tc_spring_poll_application/domain/repositories/PollRepository.java

@@ -0,0 +1,10 @@
+package io.zipcoder.tc_spring_poll_application.domain.repositories;
+
+import io.zipcoder.tc_spring_poll_application.domain.Poll;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface PollRepository extends CrudRepository<Poll, Long> {
+
+}

src/main/java/io/zipcoder/tc_spring_poll_application/domain/repositories/VoteRepository.java

@@ -0,0 +1,26 @@
+package io.zipcoder.tc_spring_poll_application.domain.repositories;
+/*
+Create a `VoteRepository` interface in the `repositories` subpackage.
+* `VoteRepository` is a subclass of `CrudRepository<Vote, Long>`
+ */
+
+import io.zipcoder.tc_spring_poll_application.domain.Vote;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface VoteRepository extends CrudRepository <Vote,Long> {
+    
+        @Query(value = "SELECT v.* " +
+                "FROM Option o, Vote v " +
+                "WHERE o.POLL_ID = ?1 " +
+                "AND v.OPTION_ID = o.OPTION_ID", nativeQuery = true)
+        public Iterable<Vote> findVotesByPoll(Long pollId);
+
+    Iterable<Vote> findById(Long pollId);
+}
+
+
+
+

src/main/java/io/zipcoder/tc_spring_poll_application/dtos/ErrorDetail.java

@@ -0,0 +1,67 @@
+package io.zipcoder.tc_spring_poll_application.dtos;
+/*
+String title`: a brief title of the error condition, eg: "Validation Failure" or "Internal Server Error"
+- `int status`: the HTTP status code for the current request; redundant but useful for client-side error handling
+- `String detail`: A short, human-readable description of the error that may be presented to a user
+- `long timeStamp`: the time in milliseconds when the error occurred
+- `String developerMessage`: detailed information such as exception class name or a stack trace
+useful for developers to debug
+
+ */
+
+import io.zipcoder.tc_spring_poll_application.error.ValidationError;
+
+import java.util.List;
+import java.util.Map;
+
+public class ErrorDetail {
+    String title;
+    int status;
+    String detail;
+    Long timeStamp;
+    String developerMessage;
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public int getStatus() {
+        return status;
+    }
+
+    public void setStatus(int status) {
+        this.status = status;
+    }
+
+    public String getDetail() {
+        return detail;
+    }
+
+    public void setDetail(String detail) {
+        this.detail = detail;
+    }
+
+    public Long getTimeStamp() {
+        return timeStamp;
+    }
+
+    public void setTimeStamp(Long timeStamp) {
+        this.timeStamp = timeStamp;
+    }
+
+    public String getDeveloperMessage() {
+        return developerMessage;
+    }
+
+    public void setDeveloperMessage(String developerMessage) {
+        this.developerMessage = developerMessage;
+    }
+
+    public Map<String, List<ValidationError>> getErrors() {
+        return null;
+    }
+}

src/main/java/io/zipcoder/tc_spring_poll_application/dtos/OptionCount.java

@@ -0,0 +1,24 @@
+package io.zipcoder.tc_spring_poll_application.dtos;
+
+public class OptionCount {
+
+        private Long optionId;
+        private int count;
+
+        public Long getOptionId() {
+            return optionId;
+        }
+
+        public void setOptionId(Long optionId) {
+            this.optionId = optionId;
+        }
+
+        public int getCount() {
+            return count;
+        }
+
+        public void setCount(int count) {
+            this.count = count;
+        }
+
+    }

src/main/java/io/zipcoder/tc_spring_poll_application/dtos/RestExceptionHandler.java

@@ -0,0 +1,19 @@
+package io.zipcoder.tc_spring_poll_application.dtos;
+
+import io.zipcoder.tc_spring_poll_application.exception.ResourceNotFoundException;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+import javax.servlet.http.HttpServletRequest;
+
+@ControllerAdvice
+public class RestExceptionHandler {
+
+    @ExceptionHandler(ResourceNotFoundException .class)
+    public ResponseEntity<?> handleResourceNotFoundException(ResourceNotFoundException rnfe, HttpServletRequest request) {
+        return new ResponseEntity<>(null,  HttpStatus.NOT_FOUND );
+    }
+    }
+

src/main/java/io/zipcoder/tc_spring_poll_application/dtos/VoteResult.java

@@ -0,0 +1,23 @@
+package io.zipcoder.tc_spring_poll_application.dtos;
+
+import java.util.Collection;
+public class VoteResult {
+    private int totalVotes;
+    private Collection<OptionCount> results;
+
+    public int getTotalVotes() {
+        return totalVotes;
+    }
+
+    public void setTotalVotes(int totalVotes) {
+        this.totalVotes = totalVotes;
+    }
+
+    public Collection<OptionCount> getResults() {
+        return results;
+    }
+
+    public void setResults(Collection<OptionCount> results) {
+        this.results = results;
+    }
+}

src/main/java/io/zipcoder/tc_spring_poll_application/error/MethodAr1gumentNotValidException.java

@@ -0,0 +1,4 @@
+package io.zipcoder.tc_spring_poll_application.error;
+
+public class MethodAr1gumentNotValidException extends Throwable {
+}

src/main/java/io/zipcoder/tc_spring_poll_application/error/RestExceptionHandler.java

@@ -0,0 +1,4 @@
+package io.zipcoder.tc_spring_poll_application.error;
+
+public @interface RestExceptionHandler {
+}

src/main/java/io/zipcoder/tc_spring_poll_application/error/ValidationError.java

@@ -0,0 +1,33 @@
+package io.zipcoder.tc_spring_poll_application.error;
+
+import org.springframework.web.bind.MethodArgumentNotValidException;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+
+
+public class ValidationError {
+    String code;
+    String message;
+
+    Map<String, List<ValidationError>> errors = new HashMap<>();
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+
+}

src/main/java/io/zipcoder/tc_spring_poll_application/error/Validationerrorhandler.java

@@ -0,0 +1,56 @@
+package io.zipcoder.tc_spring_poll_application.error;
+
+import io.zipcoder.tc_spring_poll_application.dtos.ErrorDetail;
+import org.apache.tomcat.util.descriptor.XmlErrorHandler;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.MessageSource;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.FieldError;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+import javax.servlet.http.HttpServletRequest;
+import java.util.ArrayList;
+import java.util.List;
+
+//@RestExceptionHandler
+public class Validationerrorhandler<RestExceptionHandler> {
+    @Autowired
+
+    private  MessageSource  messageSource ;
+    @ExceptionHandler(MethodAr1gumentNotValidException.class)
+
+
+
+
+    public ResponseEntity<?>
+    handleValidationError(  MethodArgumentNotValidException manve,
+                            HttpServletRequest request){
+
+
+
+        List<FieldError> fieldErrors =  manve .getBindingResult().getFieldErrors();
+        for(FieldError fe : fieldErrors) {
+
+            ErrorDetail  errorDetail=new ErrorDetail() ;
+
+            List<ValidationError> validationErrorList = errorDetail.getErrors().get(fe.getField());
+
+            if(validationErrorList == null) {
+                validationErrorList = new ArrayList<>();
+
+                errorDetail.getErrors().put(fe.getField(), validationErrorList);
+            }
+
+            ValidationError validationError = new ValidationError();
+            validationError.setCode(fe.getCode());
+            validationError.setMessage(messageSource.getMessage(fe, null));
+            validationErrorList.add(validationError);
+        }
+        ResponseEntity responseEntity = new ResponseEntity<>( HttpStatus.BAD_REQUEST);
+        return responseEntity;
+    }
+    }
+
+

src/main/java/io/zipcoder/tc_spring_poll_application/exception/ResourceNotFoundException.java

@@ -0,0 +1,19 @@
+package io.zipcoder.tc_spring_poll_application.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ResponseStatus(HttpStatus.NOT_FOUND)
+public class ResourceNotFoundException extends RuntimeException {
+
+    public ResourceNotFoundException() {
+    }
+
+    public ResourceNotFoundException(String message) {
+        super(message);
+    }
+
+    public ResourceNotFoundException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}

src/main/resources/application.properties

@@ -0,0 +1,3 @@
+spring.profiles.active=h2
+
+spring.jpa.database-platform=org.hibernate.dialect.Oracle10gDialect

src/main/resources/message.properties

@@ -0,0 +1,4 @@
+spring.datasource.url=jdbc:h2:mem:testdb;Mode=Oracle
+spring.datasource.platform=h2
+spring.jpa.hibernate.ddl-auto=none
+spring.datasource.continue-on-error=true

src/main/resources/schema-h2.sql

@@ -0,0 +1,10 @@
+CREATE TABLE POLL (
+poll_id  NUMBER(10,0) NOT NULL AUTO_INCREMENT,
+question  VARCHAR2(255) DEFAULT NULL,
+PRIMARY KEY (ID));
+
+CREATE  TABLE OPTION(option_id  NUMBER(20,0)NOT NULL AUTO_INCREMENT ,option_value  VARCHAR (255),poll_id  NUMBER (20,0) );
+
+
+insert into poll (poll_id, question) values (1, 'What is your favorite color?');
+insert into option (option_id, option_value, poll_id) values (1, 'Red', 1);