adding starter methods

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

@@ -2,14 +2,14 @@ package io.zipcoder.tc_spring_poll_application.controller;
 
 import io.zipcoder.tc_spring_poll_application.domain.Poll;
 import io.zipcoder.tc_spring_poll_application.repositories.PollRepository;
+import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
 
 import javax.inject.Inject;
+import java.net.URI;
 
 @RestController
 public class PollController {
@@ -25,8 +25,34 @@ public class PollController {
 
     @RequestMapping(value="/polls", method=RequestMethod.POST)
     public ResponseEntity<?> createPoll(@RequestBody Poll poll) {
+        URI newPollUri = ServletUriComponentsBuilder
+                .fromCurrentRequest()
+                .path("/{id}")
+                .buildAndExpand(poll.getId())
+                .toUri();
+        HttpHeaders responseHeaders = new HttpHeaders();
+        responseHeaders.setLocation(newPollUri);
         poll = pollRepository.save(poll);
-        return new ResponseEntity<>(null, HttpStatus.CREATED);
+        return new ResponseEntity<>(null, responseHeaders, 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);
     }
 
 }