java-api/src/main/java/restService/DatabaseTransactionResource.java

package restService;

import database.transaction.Transaction;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import restImplementation.DatabaseTransactionImplementation;

import javax.validation.Valid;
import java.util.List;

@RestController
@RequestMapping(value = "/api/rest/transaction")
public class DatabaseTransactionResource {

    @PostMapping("/save")
    @ResponseStatus(HttpStatus.CREATED)
    public ResponseEntity<String> saveTransaction(@Valid @RequestBody Transaction transaction){
        try{
            DatabaseTransactionImplementation databaseTransactionImplementation = new DatabaseTransactionImplementation();
            databaseTransactionImplementation.saveTransaction(transaction);
            return ResponseEntity.status(HttpStatus.OK).body("");
        }catch (Exception e){
            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(e.getMessage());
        }
    }

    @GetMapping("/get")
    @ResponseStatus(HttpStatus.OK)
    public ResponseEntity<Transaction> getTransaction(@Valid @RequestBody Transaction transaction){
        try{
            DatabaseTransactionImplementation databaseTransactionImplementation = new DatabaseTransactionImplementation();
            Transaction tx = databaseTransactionImplementation.getUserTransaction(transaction.getUserId(),transaction.getTransactionHash());
            if(tx != null){
                return ResponseEntity.status(HttpStatus.OK).body(tx);
            }else {
                return new ResponseEntity("Error", HttpStatus.NOT_FOUND);
            }
        }catch (Exception e){
            return new ResponseEntity(e.getMessage(), HttpStatus.BAD_REQUEST);
        }
    }

    @RequestMapping(value = "/getAll", method = RequestMethod.GET, params = {"userId"}, produces = "application/json")
    @ResponseStatus(HttpStatus.OK)
    public ResponseEntity<List<Transaction>> getAllTransaction(@RequestParam(value = "userId") int userId){
        try{
            DatabaseTransactionImplementation databaseTransactionImplementation = new DatabaseTransactionImplementation();
            List<Transaction> transactionList = databaseTransactionImplementation.getAllUserTransactions(userId);
            if(!transactionList.isEmpty()){
                return ResponseEntity.status(HttpStatus.OK).body(transactionList);
            }else {
                return new ResponseEntity("Error", HttpStatus.NOT_FOUND);
            }
        }catch (Exception e){
            return new ResponseEntity(e.getMessage(), HttpStatus.BAD_REQUEST);
        }
    }

}