diff --git a/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/SpringListValidationApplication.java b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/SpringListValidationApplication.java new file mode 100644 index 0000000000..f16d5f877f --- /dev/null +++ b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/SpringListValidationApplication.java @@ -0,0 +1,17 @@ +package com.baeldung.validation.listvalidation; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; +import org.springframework.context.annotation.ComponentScan; +import org.springframework.context.annotation.Configuration; + +@ComponentScan(basePackages = "com.baeldung.validation.listvalidation") +@Configuration +@SpringBootApplication +public class SpringListValidationApplication { + + public static void main(String[] args) { + SpringApplication.run(SpringListValidationApplication.class, args); + } + +} diff --git a/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/constraint/MaxSizeConstraint.java b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/constraint/MaxSizeConstraint.java new file mode 100644 index 0000000000..b5adab5d86 --- /dev/null +++ b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/constraint/MaxSizeConstraint.java @@ -0,0 +1,18 @@ +package com.baeldung.validation.listvalidation.constraint; + +import java.lang.annotation.Retention; +import java.lang.annotation.RetentionPolicy; + +import javax.validation.Constraint; +import javax.validation.Payload; + +@Constraint(validatedBy = MaxSizeConstraintValidator.class) +@Retention(RetentionPolicy.RUNTIME) +public @interface MaxSizeConstraint { + + String message() default "The input list cannot contain more than 4 movies."; + + Class[] groups() default {}; + + Class[] payload() default {}; +} diff --git a/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/constraint/MaxSizeConstraintValidator.java b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/constraint/MaxSizeConstraintValidator.java new file mode 100644 index 0000000000..0154fb636a --- /dev/null +++ b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/constraint/MaxSizeConstraintValidator.java @@ -0,0 +1,21 @@ +package com.baeldung.validation.listvalidation.constraint; + +import java.util.List; + +import javax.validation.ConstraintValidator; +import javax.validation.ConstraintValidatorContext; + +import com.baeldung.validation.listvalidation.model.Movie; + +public class MaxSizeConstraintValidator implements ConstraintValidator> { + + @Override + public boolean isValid(List values, ConstraintValidatorContext context) { + boolean isValid = true; + if (values.size() > 4) { + isValid = false; + } + return isValid; + } + +} diff --git a/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/controller/MovieController.java b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/controller/MovieController.java new file mode 100644 index 0000000000..45639cf303 --- /dev/null +++ b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/controller/MovieController.java @@ -0,0 +1,31 @@ +package com.baeldung.validation.listvalidation.controller; + +import java.util.List; + +import javax.validation.Valid; +import javax.validation.constraints.NotEmpty; + +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.validation.annotation.Validated; +import org.springframework.web.bind.annotation.PostMapping; +import org.springframework.web.bind.annotation.RequestBody; +import org.springframework.web.bind.annotation.RequestMapping; +import org.springframework.web.bind.annotation.RestController; + +import com.baeldung.validation.listvalidation.constraint.MaxSizeConstraint; +import com.baeldung.validation.listvalidation.model.Movie; +import com.baeldung.validation.listvalidation.service.MovieService; + +@Validated +@RestController +@RequestMapping("/movies") +public class MovieController { + + @Autowired + private MovieService movieService; + + @PostMapping + public void addAll(@RequestBody @NotEmpty(message = "Input movie list cannot be empty.") @MaxSizeConstraint List<@Valid Movie> movies) { + movieService.addAll(movies); + } +} diff --git a/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/exception/ConstraintViolationExceptionHandler.java b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/exception/ConstraintViolationExceptionHandler.java new file mode 100644 index 0000000000..742be27f61 --- /dev/null +++ b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/exception/ConstraintViolationExceptionHandler.java @@ -0,0 +1,36 @@ +package com.baeldung.validation.listvalidation.exception; + +import java.util.Set; + +import javax.validation.ConstraintViolation; +import javax.validation.ConstraintViolationException; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.http.HttpStatus; +import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.ExceptionHandler; +import org.springframework.web.bind.annotation.RestControllerAdvice; + +@RestControllerAdvice +public class ConstraintViolationExceptionHandler { + + private final Logger logger = LoggerFactory.getLogger(ConstraintViolationExceptionHandler.class); + + @ExceptionHandler(ConstraintViolationException.class) + public ResponseEntity handle(ConstraintViolationException constraintViolationException) { + Set> violations = constraintViolationException.getConstraintViolations(); + String errorMessage = ""; + if (!violations.isEmpty()) { + StringBuilder builder = new StringBuilder(); + violations.forEach(violation -> builder.append("\n" + violation.getMessage())); + errorMessage = builder.toString(); + } else { + errorMessage = "ConstraintViolationException occured."; + } + + logger.error(errorMessage); + return new ResponseEntity<>(errorMessage, HttpStatus.BAD_REQUEST); + } + +} diff --git a/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/model/Movie.java b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/model/Movie.java new file mode 100644 index 0000000000..f5a49877bf --- /dev/null +++ b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/model/Movie.java @@ -0,0 +1,40 @@ +package com.baeldung.validation.listvalidation.model; + +import java.util.UUID; + +import javax.validation.constraints.NotEmpty; + +public class Movie { + + private String id; + + @NotEmpty(message = "Movie name cannot be empty.") + private String name; + + public Movie(String name) { + this.id = UUID.randomUUID() + .toString(); + this.name = name; + } + + public Movie(){ + + } + + public String getId() { + return id; + } + + public void setId(String id) { + this.id = id; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } + +} diff --git a/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/service/MovieService.java b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/service/MovieService.java new file mode 100644 index 0000000000..0339df595d --- /dev/null +++ b/spring-mvc-simple-2/src/main/java/com/baeldung/validation/listvalidation/service/MovieService.java @@ -0,0 +1,55 @@ +package com.baeldung.validation.listvalidation.service; + +import java.util.ArrayList; +import java.util.List; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.stereotype.Service; + +import com.baeldung.validation.listvalidation.model.Movie; + +@Service +public class MovieService { + + private final Logger logger = LoggerFactory.getLogger(MovieService.class); + + private static List moviesData; + + static { + moviesData = new ArrayList<>(); + + Movie m1 = new Movie("MovieABC"); + moviesData.add(m1); + + Movie m2 = new Movie("MovieDEF"); + moviesData.add(m2); + + } + + public Movie get(String name) { + Movie movie = null; + for (Movie m : moviesData) { + if (name.equalsIgnoreCase(m.getName())) { + movie = m; + logger.info("Found movie with name {} : {} ", name, movie); + } + } + + return movie; + } + + public void add(Movie movie) { + if (get(movie.getName()) == null) { + moviesData.add(movie); + logger.info("Added new movie - {}", movie.getName()); + } + } + + public void addAll(List movies) { + for (Movie movie : movies) { + add(movie); + } + } + +} diff --git a/spring-mvc-simple-2/src/test/java/com/baeldung/validation/listvalidation/MovieControllerIntegrationTest.java b/spring-mvc-simple-2/src/test/java/com/baeldung/validation/listvalidation/MovieControllerIntegrationTest.java new file mode 100644 index 0000000000..cddc6c6bd9 --- /dev/null +++ b/spring-mvc-simple-2/src/test/java/com/baeldung/validation/listvalidation/MovieControllerIntegrationTest.java @@ -0,0 +1,83 @@ +package com.baeldung.validation.listvalidation; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; + +import org.junit.Test; +import org.junit.runner.RunWith; +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc; +import org.springframework.boot.test.context.SpringBootTest; +import org.springframework.http.MediaType; +import org.springframework.test.context.junit4.SpringRunner; +import org.springframework.test.web.servlet.MockMvc; +import org.springframework.test.web.servlet.request.MockMvcRequestBuilders; +import org.springframework.test.web.servlet.result.MockMvcResultMatchers; + +import com.baeldung.validation.listvalidation.model.Movie; +import com.fasterxml.jackson.databind.ObjectMapper; + +@RunWith(SpringRunner.class) +@SpringBootTest(classes = SpringListValidationApplication.class) +@AutoConfigureMockMvc +public class MovieControllerIntegrationTest { + + @Autowired + private MockMvc mvc; + + ObjectMapper objectMapper = new ObjectMapper(); + + @Test + public void givenValidMovieList_whenAddingMovieList_thenIsOK() throws Exception { + List movies = new ArrayList<>(); + Movie movie = new Movie("Movie3"); + movies.add(movie); + mvc.perform(MockMvcRequestBuilders.post("/movies") + .contentType(MediaType.APPLICATION_JSON_UTF8) + .content(objectMapper.writeValueAsString(movies))) + .andExpect(MockMvcResultMatchers.status() + .isOk()); + } + + @Test + public void givenEmptyMovieList_whenAddingMovieList_thenThrowBadRequest() throws Exception { + List movies = new ArrayList<>(); + mvc.perform(MockMvcRequestBuilders.post("/movies") + .contentType(MediaType.APPLICATION_JSON_UTF8) + .content(objectMapper.writeValueAsString(movies))) + .andExpect(MockMvcResultMatchers.status() + .isBadRequest()); + } + + @Test + public void givenEmptyMovieName_whenAddingMovieList_thenThrowBadRequest() throws Exception { + Movie movie = new Movie(""); + mvc.perform(MockMvcRequestBuilders.post("/movies") + .contentType(MediaType.APPLICATION_JSON_UTF8) + .content(objectMapper.writeValueAsString(Arrays.asList(movie)))) + .andExpect(MockMvcResultMatchers.status() + .isBadRequest()); + } + + @Test + public void given5MoviesInputList_whenAddingMovieList_thenThrowBadRequest() throws Exception { + Movie movie1 = new Movie("Movie1"); + Movie movie2 = new Movie("Movie2"); + Movie movie3 = new Movie("Movie3"); + Movie movie4 = new Movie("Movie4"); + Movie movie5 = new Movie("Movie5"); + List movies = new ArrayList<>(); + movies.add(movie1); + movies.add(movie2); + movies.add(movie3); + movies.add(movie4); + movies.add(movie5); + mvc.perform(MockMvcRequestBuilders.post("/movies") + .contentType(MediaType.APPLICATION_JSON_UTF8) + .content(objectMapper.writeValueAsString(movies))) + .andExpect(MockMvcResultMatchers.status() + .isBadRequest()); + } + +}