done

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

@@ -0,0 +1,57 @@
+package io.zipcoder.tc_spring_poll_application.controller;
+
+import io.zipcoder.tc_spring_poll_application.domain.Vote;
+import io.zipcoder.tc_spring_poll_application.dtos.OptionCount;
+import io.zipcoder.tc_spring_poll_application.dtos.VoteResult;
+import io.zipcoder.tc_spring_poll_application.repositories.VoteRepository;
+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;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+
+@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);
+        Map<Long, Integer> mapOptions = new HashMap<>();
+        int voteCount = 0;
+        for(Vote vote:allVotes){
+            voteCount++;
+            if(!mapOptions.containsKey(vote.getOption().getId())){
+                mapOptions.put(vote.getOption().getId(),1);
+            }else{
+                int count = mapOptions.get(vote.getOption().getId());
+                count +=1;
+                mapOptions.put(vote.getOption().getId(),count);
+            }
+        }
+        Collection<OptionCount> optionCounts = new ArrayList<>();
+        for(Long l:mapOptions.keySet()){
+            OptionCount optionCount = new OptionCount();
+            optionCounts.add(optionCount);
+        }
+        voteResult.setResults(optionCounts);
+        voteResult.setTotalVotes(voteCount);
+
+        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.exception.ResourceNotFoundException;
+import io.zipcoder.tc_spring_poll_application.repositories.PollRepository;
+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;
+
+import javax.validation.Valid;
+import java.net.URI;
+import java.util.Collection;
+
+@RestController
+public class PollController {
+
+    PollRepository pollRepository;
+
+    @Autowired
+    public PollController(PollRepository pollRepository) {
+        this.pollRepository = pollRepository;
+    }
+
+    @Valid
+    @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();
+        HttpHeaders header = new HttpHeaders();
+        header.setLocation(newPollUri);
+        return new ResponseEntity<>(header, HttpStatus.CREATED);
+    }
+
+    @Valid
+    @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(Long pollId) throws ResourceNotFoundException{
+        Iterable<Poll> allPolls = pollRepository.findAll();
+        boolean verified = false;
+        for(Poll poll:allPolls){
+            if(poll.getId() ==pollId){
+                verified = true;
+            }
+        }
+        if (!verified)
+            throw new ResourceNotFoundException();
+    }
+
+}

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

@@ -0,0 +1,42 @@
+package io.zipcoder.tc_spring_poll_application.controller;
+
+import io.zipcoder.tc_spring_poll_application.domain.Vote;
+import io.zipcoder.tc_spring_poll_application.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.findVotesByPoll(pollId);
+    }
+}

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

@@ -0,0 +1,31 @@
+package io.zipcoder.tc_spring_poll_application.domain;
+
+import org.hibernate.annotations.ColumnDefault;
+
+import javax.persistence.*;
+
+@Entity
+public class Option {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @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 +1,47 @@
+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;
+
+@Entity
+public class Poll {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @Column(name = "POLL_ID")
+    private Long id;
+    @Column(name = "QUESTION")
+    @NotEmpty
+    private String question;
+    @OneToMany(cascade = CascadeType.ALL)
+    @JoinColumn(name = "POLL_ID")
+    @OrderBy
+    @Size(min=2, max = 6)
+    private Set<Option> options;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getQuestion() {
+        return question;
+    }
+
+    public void setQuestion(String question) {
+        this.question = question;
+    }
+
+    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 +1,30 @@
+package io.zipcoder.tc_spring_poll_application.domain;
+
+import javax.persistence.*;
+
+@Entity
+public class Vote {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @Column(name = "VOTE_ID")
+    private long id;
+    @ManyToOne
+    @JoinColumn(name = "OPTION_ID")
+    private 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/dtos/OptionCount.java

@@ -0,0 +1,30 @@
+package io.zipcoder.tc_spring_poll_application.dtos;
+
+public class OptionCount {
+    private Long optionId;
+    private int count;
+
+    public OptionCount(Long optionId, int count) {
+        this.optionId = optionId;
+        this.count = count;
+    }
+
+    public OptionCount() {
+    }
+
+    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/VoteResult.java

@@ -0,0 +1,26 @@
+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/dtos/error/ErrorDetail.java

@@ -0,0 +1,73 @@
+package io.zipcoder.tc_spring_poll_application.dtos.error;
+
+import java.util.List;
+import java.util.Map;
+
+public class ErrorDetail {
+
+    private String title;
+    private int status;
+    private String details;
+    private long timeStamp;
+    private String developerMessage;
+    Map<String, List<ValidationError>> errors;
+
+    public Map<String, List<ValidationError>> getErrors() {
+        return errors;
+    }
+
+    public void setErrors(Map<String, List<ValidationError>> errors) {
+        this.errors = errors;
+    }
+
+    public ErrorDetail() {
+    }
+
+    public ErrorDetail(String title, int status, String details, long timeStamp, String developerMessage) {
+        this.title = title;
+        this.status = status;
+        this.details = details;
+        this.timeStamp = timeStamp;
+        this.developerMessage = developerMessage;
+    }
+
+    public int getStatus() {
+        return status;
+    }
+
+    public void setStatus(int status) {
+        this.status = status;
+    }
+
+    public String getDetails() {
+        return details;
+    }
+
+    public void setDetails(String details) {
+        this.details = details;
+    }
+
+    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 String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+}

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

@@ -0,0 +1,23 @@
+package io.zipcoder.tc_spring_poll_application.dtos.error;
+
+public class ValidationError {
+
+    private String code;
+    private String message;
+
+    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/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/java/io/zipcoder/tc_spring_poll_application/exception/RestExceptionHandler.java

@@ -0,0 +1,55 @@
+package io.zipcoder.tc_spring_poll_application.exception;
+
+import io.zipcoder.tc_spring_poll_application.dtos.error.ErrorDetail;
+import io.zipcoder.tc_spring_poll_application.dtos.error.ValidationError;
+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.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+import javax.servlet.http.HttpServletRequest;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+@ControllerAdvice
+public class RestExceptionHandler {
+
+    @Autowired
+    MessageSource messageSource;
+
+    @ExceptionHandler(ResourceNotFoundException.class)
+    public ResponseEntity<?> handleResourceNotFoundException(ResourceNotFoundException rnfe, HttpServletRequest request) {
+        ErrorDetail errorDetail = new ErrorDetail();
+        errorDetail.setTimeStamp(new Date().getTime());
+        errorDetail.setDeveloperMessage(rnfe.getMessage());
+
+        return new ResponseEntity<>(errorDetail, HttpStatus.NOT_FOUND);
+    }
+
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    public ResponseEntity<?> handleValidationError(  MethodArgumentNotValidException manve, HttpServletRequest request) {
+        ErrorDetail errorDetail = new ErrorDetail();
+        errorDetail.setTimeStamp(new Date().getTime());
+        errorDetail.setDeveloperMessage(manve.getMessage());
+
+        List<FieldError> fieldErrors =  manve.getBindingResult().getFieldErrors();
+            for(FieldError fe : fieldErrors) {
+
+        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);
+            }
+        return new ResponseEntity<>(errorDetail, HttpStatus.BAD_REQUEST);
+    }
+}

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

@@ -0,0 +1,8 @@
+package io.zipcoder.tc_spring_poll_application.repositories;
+
+import io.zipcoder.tc_spring_poll_application.domain.Poll;
+import org.springframework.data.repository.CrudRepository;
+
+public interface OptionRepository extends CrudRepository<Poll,Long> {
+
+}

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

@@ -0,0 +1,7 @@
+package io.zipcoder.tc_spring_poll_application.repositories;
+
+import io.zipcoder.tc_spring_poll_application.domain.Poll;
+import org.springframework.data.repository.CrudRepository;
+
+public interface PollRepository extends CrudRepository<Poll,Long> {
+}

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

@@ -0,0 +1,14 @@
+package io.zipcoder.tc_spring_poll_application.repositories;
+
+import io.zipcoder.tc_spring_poll_application.domain.Vote;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.CrudRepository;
+
+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);
+}

src/main/resources/import.sql

@@ -0,0 +1,23 @@
+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);
+insert into option (option_id, option_value, poll_id) values (2, 'Blue', 1);
+insert into option (option_id, option_value, poll_id) values (3, 'Yellow', 1);
+insert into option (option_id, option_value, poll_id) values (4, 'Green', 1);
+
+insert into poll (poll_id, question) values (2, 'What is your favorite breakfast food?');
+insert into option (option_id, option_value, poll_id) values (5, 'Pancake', 2);
+insert into option (option_id, option_value, poll_id) values (6, 'Waffles', 2);
+insert into option (option_id, option_value, poll_id) values (7, 'Cereal', 2);
+insert into option (option_id, option_value, poll_id) values (8, 'Eggs', 2);
+
+insert into poll (poll_id, question) values (3, 'What is your favorite season?');
+insert into option (option_id, option_value, poll_id) values (9, 'Spring', 3);
+insert into option (option_id, option_value, poll_id) values (10, 'Summer', 3);
+insert into option (option_id, option_value, poll_id) values (11, 'Autumn', 3);
+insert into option (option_id, option_value, poll_id) values (12, 'Winter', 3);
+
+insert into poll (poll_id, question) values (4, 'What is your favorite drink?');
+insert into option (option_id, option_value, poll_id) values (13, 'Water', 4);
+insert into option (option_id, option_value, poll_id) values (14, 'Soda', 4);
+insert into option (option_id, option_value, poll_id) values (15, 'Juice', 4);
+insert into option (option_id, option_value, poll_id) values (16, 'Coffee', 4);