diff --git a/patterns/clean-architecture/pom.xml b/patterns/clean-architecture/pom.xml new file mode 100644 index 0000000000..6e7de78751 --- /dev/null +++ b/patterns/clean-architecture/pom.xml @@ -0,0 +1,87 @@ + + + 4.0.0 + clean-architecture + 1.0 + clean-architecture + Project for clean architecture in java + + + com.baeldung + parent-boot-2 + 0.0.1-SNAPSHOT + ../../parent-boot-2 + + + + 1.8 + + + + + com.h2database + h2 + runtime + + + org.springframework.boot + spring-boot-starter-web + + + org.springframework.boot + spring-boot-starter-data-jpa + + + org.junit.jupiter + junit-jupiter-engine + test + + + org.springframework.boot + spring-boot-starter-test + test + + + org.junit.vintage + junit-vintage-engine + + + + + org.mockito + mockito-core + test + + + org.junit.platform + junit-platform-engine + + + org.junit.jupiter + junit-jupiter-engine + + + org.junit.jupiter + junit-jupiter-api + + + org.junit.platform + junit-platform-runner + test + + + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + + diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/CleanArchitectureApplication.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/CleanArchitectureApplication.java new file mode 100644 index 0000000000..ebac2bacf3 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/CleanArchitectureApplication.java @@ -0,0 +1,40 @@ +package com.baeldung.pattern.cleanarchitecture; + +import org.springframework.beans.factory.config.BeanFactoryPostProcessor; +import org.springframework.beans.factory.support.BeanDefinitionRegistry; +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; +import org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext; +import org.springframework.context.ApplicationContext; +import org.springframework.context.annotation.Bean; +import org.springframework.context.annotation.ClassPathBeanDefinitionScanner; +import org.springframework.core.type.classreading.MetadataReader; +import org.springframework.core.type.classreading.MetadataReaderFactory; +import org.springframework.core.type.filter.TypeFilter; + +@SpringBootApplication +public class CleanArchitectureApplication { + + public static void main(String[] args) { + SpringApplication.run(CleanArchitectureApplication.class); + } + + @Bean + BeanFactoryPostProcessor beanFactoryPostProcessor(ApplicationContext beanRegistry) { + return beanFactory -> { + genericApplicationContext((BeanDefinitionRegistry) ((AnnotationConfigServletWebServerApplicationContext) beanRegistry).getBeanFactory()); + }; + } + + void genericApplicationContext(BeanDefinitionRegistry beanRegistry) { + ClassPathBeanDefinitionScanner beanDefinitionScanner = new ClassPathBeanDefinitionScanner(beanRegistry); + beanDefinitionScanner.addIncludeFilter(removeModelAndEntitiesFilter()); + beanDefinitionScanner.scan("com.baeldung.pattern.cleanarchitecture"); + } + + static TypeFilter removeModelAndEntitiesFilter() { + return (MetadataReader mr, MetadataReaderFactory mrf) -> !mr.getClassMetadata() + .getClassName() + .endsWith("Model"); + } +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/CommonUser.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/CommonUser.java new file mode 100644 index 0000000000..f7ba9dacc0 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/CommonUser.java @@ -0,0 +1,30 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +class CommonUser implements User { + + String name; + String password; + + CommonUser(String name, String password) { + this.name = name; + this.password = password; + } + + CommonUser() { + } + + @Override + public boolean passwordIsValid() { + return password == null || password.length() > 5; + } + + @Override + public String getName() { + return name; + } + + @Override + public String getPassword() { + return password; + } +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/CommonUserFactory.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/CommonUserFactory.java new file mode 100644 index 0000000000..a2b851da94 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/CommonUserFactory.java @@ -0,0 +1,8 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +class CommonUserFactory implements UserFactory { + @Override + public User create(String name, String password) { + return new CommonUser(name, password); + } +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/JpaUser.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/JpaUser.java new file mode 100644 index 0000000000..20751f282a --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/JpaUser.java @@ -0,0 +1,21 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +class JpaUser implements UserRegisterDsGateway { + + final JpaUserRepository repository; + + JpaUser(JpaUserRepository repository) { + this.repository = repository; + } + + @Override + public boolean existsByName(String name) { + return repository.existsById(name); + } + + @Override + public void save(UserDsRequestModel requestModel) { + UserDataMapper accountDataMapper = new UserDataMapper(requestModel.getName(), requestModel.getPassword(), requestModel.getCreationTime()); + repository.save(accountDataMapper); + } +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/JpaUserRepository.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/JpaUserRepository.java new file mode 100644 index 0000000000..8565ed7965 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/JpaUserRepository.java @@ -0,0 +1,8 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +import org.springframework.data.jpa.repository.JpaRepository; +import org.springframework.stereotype.Repository; + +@Repository +interface JpaUserRepository extends JpaRepository { +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/User.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/User.java new file mode 100644 index 0000000000..aab652f2a1 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/User.java @@ -0,0 +1,9 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +interface User { + boolean passwordIsValid(); + + String getName(); + + String getPassword(); +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserDataMapper.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserDataMapper.java new file mode 100644 index 0000000000..44112de8a9 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserDataMapper.java @@ -0,0 +1,53 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +import java.time.LocalDateTime; + +import javax.persistence.Entity; +import javax.persistence.Id; +import javax.persistence.Table; + +@Entity +@Table(name = "user") +class UserDataMapper { + + @Id + String name; + + String password; + + LocalDateTime creationTime; + + public UserDataMapper() { + } + + public UserDataMapper(String name, String password, LocalDateTime creationTime) { + super(); + this.name = name; + this.password = password; + this.creationTime = creationTime; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } + + public String getPassword() { + return password; + } + + public void setPassword(String password) { + this.password = password; + } + + public LocalDateTime getCreationTime() { + return creationTime; + } + + public void setCreationTime(LocalDateTime creationTime) { + this.creationTime = creationTime; + } +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserDsRequestModel.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserDsRequestModel.java new file mode 100644 index 0000000000..aa0f0b56d1 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserDsRequestModel.java @@ -0,0 +1,41 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +import java.time.LocalDateTime; + +class UserDsRequestModel { + + String name; + String password; + LocalDateTime creationTime; + + public UserDsRequestModel(String name, String password, LocalDateTime creationTime) { + this.name = name; + this.password = password; + this.creationTime = creationTime; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } + + public String getPassword() { + return password; + } + + public void setPassword(String password) { + this.password = password; + } + + public LocalDateTime getCreationTime() { + return creationTime; + } + + public void setCreationTime(LocalDateTime creationTime) { + this.creationTime = creationTime; + } + +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserFactory.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserFactory.java new file mode 100644 index 0000000000..1ff29709be --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserFactory.java @@ -0,0 +1,5 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +interface UserFactory { + User create(String name, String password); +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserInputBoundary.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserInputBoundary.java new file mode 100644 index 0000000000..e72c30f13c --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserInputBoundary.java @@ -0,0 +1,5 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +public interface UserInputBoundary { + UserResponseModel create(UserRequestModel requestModel); +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserPresenter.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserPresenter.java new file mode 100644 index 0000000000..45d202643e --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserPresenter.java @@ -0,0 +1,7 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +interface UserPresenter { + UserResponseModel prepareSuccessView(UserResponseModel user); + + UserResponseModel prepareFailView(String error); +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRegisterController.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRegisterController.java new file mode 100644 index 0000000000..039dc12910 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRegisterController.java @@ -0,0 +1,20 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +import org.springframework.web.bind.annotation.PostMapping; +import org.springframework.web.bind.annotation.RequestBody; +import org.springframework.web.bind.annotation.RestController; + +@RestController +class UserRegisterController { + + final UserInputBoundary userInput; + + UserRegisterController(UserInputBoundary accountGateway) { + this.userInput = accountGateway; + } + + @PostMapping("/user") + UserResponseModel create(@RequestBody UserRequestModel requestModel) { + return userInput.create(requestModel); + } +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRegisterDsGateway.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRegisterDsGateway.java new file mode 100644 index 0000000000..89c1b7e774 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRegisterDsGateway.java @@ -0,0 +1,7 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +interface UserRegisterDsGateway { + boolean existsByName(String identifier); + + void save(UserDsRequestModel requestModel); +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRegisterInteractor.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRegisterInteractor.java new file mode 100644 index 0000000000..5137593dc3 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRegisterInteractor.java @@ -0,0 +1,35 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +import java.time.LocalDateTime; + +class UserRegisterInteractor implements UserInputBoundary { + + final UserRegisterDsGateway userDsGateway; + final UserPresenter userPresenter; + final UserFactory userFactory; + + UserRegisterInteractor(UserRegisterDsGateway userRegisterDfGateway, UserPresenter userPresenter, + UserFactory userFactory) { + this.userDsGateway = userRegisterDfGateway; + this.userPresenter = userPresenter; + this.userFactory = userFactory; + } + + @Override + public UserResponseModel create(UserRequestModel requestModel) { + if (userDsGateway.existsByName(requestModel.getName())) { + return userPresenter.prepareFailView("User already exists."); + } + User user = userFactory.create(requestModel.getName(), requestModel.getPassword()); + if (!user.passwordIsValid()) { + return userPresenter.prepareFailView("User password must have more than 5 characters."); + } + LocalDateTime now = LocalDateTime.now(); + UserDsRequestModel userDsModel = new UserDsRequestModel(user.getName(), user.getPassword(), now); + + userDsGateway.save(userDsModel); + + UserResponseModel accountResponseModel = new UserResponseModel(user.getName(), now.toString()); + return userPresenter.prepareSuccessView(accountResponseModel); + } +} \ No newline at end of file diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRequestModel.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRequestModel.java new file mode 100644 index 0000000000..8317665c31 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserRequestModel.java @@ -0,0 +1,33 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +class UserRequestModel { + + String name; + String password; + + public UserRequestModel() { + super(); + } + + UserRequestModel(String name, String password) { + super(); + this.name = name; + this.password = password; + } + + String getName() { + return name; + } + + void setName(String name) { + this.name = name; + } + + String getPassword() { + return password; + } + + void setPassword(String password) { + this.password = password; + } +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserResponseFormatter.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserResponseFormatter.java new file mode 100644 index 0000000000..4842d44e22 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserResponseFormatter.java @@ -0,0 +1,22 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +import java.time.LocalDateTime; +import java.time.format.DateTimeFormatter; + +import org.springframework.http.HttpStatus; +import org.springframework.web.server.ResponseStatusException; + +class UserResponseFormatter implements UserPresenter { + + @Override + public UserResponseModel prepareSuccessView(UserResponseModel response) { + LocalDateTime responseTime = LocalDateTime.parse(response.getCreationTime()); + response.setCreationTime(responseTime.format(DateTimeFormatter.ofPattern("hh:mm:ss"))); + return response; + } + + @Override + public UserResponseModel prepareFailView(String error) { + throw new ResponseStatusException(HttpStatus.CONFLICT, error); + } +} diff --git a/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserResponseModel.java b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserResponseModel.java new file mode 100644 index 0000000000..73a3d8fb10 --- /dev/null +++ b/patterns/clean-architecture/src/main/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserResponseModel.java @@ -0,0 +1,29 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +public class UserResponseModel { + + String login; + String creationTime; + + public UserResponseModel(String login, String creationTime) { + this.login = login; + this.creationTime = creationTime; + } + + public String getLogin() { + return login; + } + + public void setLogin(String login) { + this.login = login; + } + + public String getCreationTime() { + return creationTime; + } + + public void setCreationTime(String creationTime) { + this.creationTime = creationTime; + } + +} diff --git a/patterns/clean-architecture/src/main/resources/application.properties b/patterns/clean-architecture/src/main/resources/application.properties new file mode 100644 index 0000000000..a5a02bb49d --- /dev/null +++ b/patterns/clean-architecture/src/main/resources/application.properties @@ -0,0 +1,2 @@ +server.port=8080 +server.error.include-message=always \ No newline at end of file diff --git a/patterns/clean-architecture/src/test/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserResponseFormatterTests.java b/patterns/clean-architecture/src/test/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserResponseFormatterTests.java new file mode 100644 index 0000000000..f8ebde5f10 --- /dev/null +++ b/patterns/clean-architecture/src/test/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserResponseFormatterTests.java @@ -0,0 +1,29 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +import static org.assertj.core.api.Assertions.assertThat; +import static org.assertj.core.api.Assertions.assertThatThrownBy; + +import org.junit.jupiter.api.Test; +import org.springframework.web.server.ResponseStatusException; + +import com.baeldung.pattern.cleanarchitecture.usercreation.UserResponseFormatter; +import com.baeldung.pattern.cleanarchitecture.usercreation.UserResponseModel; + +class UserResponseFormatterTests { + + UserResponseFormatter userResponseFormatter = new UserResponseFormatter(); + + @Test + void givenDateAnd3HourTime_whenPrepareSuccessView_thenReturnOnly3HourTime() { + UserResponseModel modelResponse = new UserResponseModel("baeldung", "2020-12-20T03:00:00.000"); + UserResponseModel formattedResponse = userResponseFormatter.prepareSuccessView(modelResponse); + + assertThat(formattedResponse.getCreationTime()).isEqualTo("03:00:00"); + } + + @Test + void whenPrepareFailView_thenThrowHttpConflictException() { + assertThatThrownBy(() -> userResponseFormatter.prepareFailView("Invalid password")) + .isInstanceOf(ResponseStatusException.class); + } +} diff --git a/patterns/clean-architecture/src/test/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserUnitTest.java b/patterns/clean-architecture/src/test/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserUnitTest.java new file mode 100644 index 0000000000..505ea47e3f --- /dev/null +++ b/patterns/clean-architecture/src/test/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserUnitTest.java @@ -0,0 +1,15 @@ +package com.baeldung.pattern.cleanarchitecture.usercreation; + +import static org.assertj.core.api.Assertions.assertThat; + +import org.junit.jupiter.api.Test; + +class UserUnitTest { + + @Test + void given123Password_whenPasswordIsNotValid_thenIsFalse() { + User user = new CommonUser("Baeldung", "123"); + + assertThat(user.passwordIsValid()).isFalse(); + } +}