diff --git a/second-part/hw-03/solution/.gitattributes b/second-part/hw-03/solution/.gitattributes deleted file mode 100644 index f91f646..0000000 --- a/second-part/hw-03/solution/.gitattributes +++ /dev/null @@ -1,12 +0,0 @@ -# -# https://help.github.com/articles/dealing-with-line-endings/ -# -# Linux start script should use lf -/gradlew text eol=lf - -# These are Windows script files and should use crlf -*.bat text eol=crlf - -# Binary files should be left untouched -*.jar binary - diff --git a/second-part/hw-03/solution/.gitignore b/second-part/hw-03/solution/.gitignore deleted file mode 100644 index 5c4ac6d..0000000 --- a/second-part/hw-03/solution/.gitignore +++ /dev/null @@ -1,8 +0,0 @@ -# Ignore Gradle project-specific cache directory -.gradle - -# Ignore Gradle build output directory -build - -# Ignore Kotlin plugin data -.kotlin diff --git a/second-part/hw-03/solution/app/build.gradle.kts b/second-part/hw-03/solution/app/build.gradle.kts deleted file mode 100644 index aef8d7d..0000000 --- a/second-part/hw-03/solution/app/build.gradle.kts +++ /dev/null @@ -1,43 +0,0 @@ -/* - * This file was generated by the Gradle 'init' task. - * - * This generated file contains a sample Java application project to get you started. - * For more details on building Java & JVM projects, please refer to https://docs.gradle.org/9.7.1/userguide/building_java_projects.html in the Gradle documentation. - */ - -plugins { - // Apply the application plugin to add support for building a CLI application in Java. - application -} - -repositories { - // Use Maven Central for resolving dependencies. - mavenCentral() -} - -dependencies { - // Use JUnit Jupiter for testing. - testImplementation(libs.junit.jupiter) - - testRuntimeOnly("org.junit.platform:junit-platform-launcher") - - // This dependency is used by the application. - implementation(libs.guava) -} - -// Apply a specific Java toolchain to ease working on different environments. -java { - toolchain { - languageVersion = JavaLanguageVersion.of(21) - } -} - -application { - // Define the main class for the application. - mainClass = "org.example.App" -} - -tasks.named("test") { - // Use JUnit Platform for unit tests. - useJUnitPlatform() -} diff --git a/second-part/hw-03/solution/gradle.properties b/second-part/hw-03/solution/gradle.properties deleted file mode 100644 index 377538c..0000000 --- a/second-part/hw-03/solution/gradle.properties +++ /dev/null @@ -1,5 +0,0 @@ -# This file was generated by the Gradle 'init' task. -# https://docs.gradle.org/current/userguide/build_environment.html#sec:gradle_configuration_properties - -org.gradle.configuration-cache=true - diff --git a/second-part/hw-03/solution/gradle/libs.versions.toml b/second-part/hw-03/solution/gradle/libs.versions.toml deleted file mode 100644 index f7e9ccd..0000000 --- a/second-part/hw-03/solution/gradle/libs.versions.toml +++ /dev/null @@ -1,10 +0,0 @@ -# This file was generated by the Gradle 'init' task. -# https://docs.gradle.org/current/userguide/version_catalogs.html#sec::toml-dependencies-format - -[versions] -guava = "33.5.0-jre" -junit-jupiter = "6.0.1" - -[libraries] -guava = { module = "com.google.guava:guava", version.ref = "guava" } -junit-jupiter = { module = "org.junit.jupiter:junit-jupiter", version.ref = "junit-jupiter" } diff --git a/second-part/hw-03/solution/gradle/wrapper/gradle-wrapper.properties b/second-part/hw-03/solution/gradle/wrapper/gradle-wrapper.properties deleted file mode 100644 index ad7845b..0000000 --- a/second-part/hw-03/solution/gradle/wrapper/gradle-wrapper.properties +++ /dev/null @@ -1,9 +0,0 @@ -distributionBase=GRADLE_USER_HOME -distributionPath=wrapper/dists -distributionUrl=https\://services.gradle.org/distributions/gradle-9.7.1-bin.zip -networkTimeout=10000 -retries=0 -retryBackOffMs=500 -validateDistributionUrl=true -zipStoreBase=GRADLE_USER_HOME -zipStorePath=wrapper/dists diff --git a/second-part/hw-03/solution/gradlew b/second-part/hw-03/solution/gradlew deleted file mode 100755 index 379a658..0000000 --- a/second-part/hw-03/solution/gradlew +++ /dev/null @@ -1,248 +0,0 @@ -#!/bin/sh - -# -# Copyright © 2015 the original authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# -# SPDX-License-Identifier: Apache-2.0 -# - -############################################################################## -# -# gradlew start up script for POSIX generated by Gradle. -# -# Important for running: -# -# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is -# noncompliant, but you have some other compliant shell such as ksh or -# bash, then to run this script, type that shell name before the whole -# command line, like: -# -# ksh gradlew -# -# Busybox and similar reduced shells will NOT work, because this script -# requires all of these POSIX shell features: -# * functions; -# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», -# «${var#prefix}», «${var%suffix}», and «$( cmd )»; -# * compound commands having a testable exit status, especially «case»; -# * various built-in commands including «command», «set», and «ulimit». -# -# Important for patching: -# -# (2) This script targets any POSIX shell, so it avoids extensions provided -# by Bash, Ksh, etc; in particular arrays are avoided. -# -# The "traditional" practice of packing multiple parameters into a -# space-separated string is a well documented source of bugs and security -# problems, so this is (mostly) avoided, by progressively accumulating -# options in "$@", and eventually passing that to Java. -# -# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, -# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; -# see the in-line comments for details. -# -# There are tweaks for specific operating systems such as AIX, CygWin, -# Darwin, MinGW, and NonStop. -# -# (3) This script is generated from the Groovy template -# https://github.com/gradle/gradle/blob//platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt -# within the Gradle project. -# -# You can find Gradle at https://github.com/gradle/gradle/. -# -############################################################################## - -# Attempt to set APP_HOME - -# Resolve links: $0 may be a link -app_path=$0 - -# Need this for daisy-chained symlinks. -while - APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path - [ -h "$app_path" ] -do - ls=$( ls -ld "$app_path" ) - link=${ls#*' -> '} - case $link in #( - /*) app_path=$link ;; #( - *) app_path=$APP_HOME$link ;; - esac -done - -# This is normally unused -# shellcheck disable=SC2034 -APP_BASE_NAME=${0##*/} -# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036) -APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit - -# Use the maximum available, or set MAX_FD != -1 to use that value. -MAX_FD=maximum - -warn () { - echo "$*" -} >&2 - -die () { - echo - echo "$*" - echo - exit 1 -} >&2 - -# OS specific support (must be 'true' or 'false'). -cygwin=false -msys=false -darwin=false -nonstop=false -case "$( uname )" in #( - CYGWIN* ) cygwin=true ;; #( - Darwin* ) darwin=true ;; #( - MSYS* | MINGW* ) msys=true ;; #( - NONSTOP* ) nonstop=true ;; -esac - - - -# Determine the Java command to use to start the JVM. -if [ -n "$JAVA_HOME" ] ; then - if [ -x "$JAVA_HOME/jre/sh/java" ] ; then - # IBM's JDK on AIX uses strange locations for the executables - JAVACMD=$JAVA_HOME/jre/sh/java - else - JAVACMD=$JAVA_HOME/bin/java - fi - if [ ! -x "$JAVACMD" ] ; then - die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." - fi -else - JAVACMD=java - if ! command -v java >/dev/null 2>&1 - then - die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." - fi -fi - -# Increase the maximum file descriptors if we can. -if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then - case $MAX_FD in #( - max*) - # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. - # shellcheck disable=SC2039,SC3045 - MAX_FD=$( ulimit -H -n ) || - warn "Could not query maximum file descriptor limit" - esac - case $MAX_FD in #( - '' | soft) :;; #( - *) - # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. - # shellcheck disable=SC2039,SC3045 - ulimit -n "$MAX_FD" || - warn "Could not set maximum file descriptor limit to $MAX_FD" - esac -fi - -# Collect all arguments for the java command, stacking in reverse order: -# * args from the command line -# * the main class name -# * -classpath -# * -D...appname settings -# * --module-path (only if needed) -# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. - -# For Cygwin or MSYS, switch paths to Windows format before running java -if "$cygwin" || "$msys" ; then - APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) - - JAVACMD=$( cygpath --unix "$JAVACMD" ) - - # Now convert the arguments - kludge to limit ourselves to /bin/sh - for arg do - if - case $arg in #( - -*) false ;; # don't mess with options #( - /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath - [ -e "$t" ] ;; #( - *) false ;; - esac - then - arg=$( cygpath --path --ignore --mixed "$arg" ) - fi - # Roll the args list around exactly as many times as the number of - # args, so each arg winds up back in the position where it started, but - # possibly modified. - # - # NB: a `for` loop captures its iteration list before it begins, so - # changing the positional parameters here affects neither the number of - # iterations, nor the values presented in `arg`. - shift # remove old arg - set -- "$@" "$arg" # push replacement arg - done -fi - - -# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. -DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' - -# Collect all arguments for the java command: -# * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, -# and any embedded shellness will be escaped. -# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be -# treated as '${Hostname}' itself on the command line. - -set -- \ - "-Dorg.gradle.appname=$APP_BASE_NAME" \ - -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \ - "$@" - -# Stop when "xargs" is not available. -if ! command -v xargs >/dev/null 2>&1 -then - die "xargs is not available" -fi - -# Use "xargs" to parse quoted args. -# -# With -n1 it outputs one arg per line, with the quotes and backslashes removed. -# -# In Bash we could simply go: -# -# readarray ARGS < <( xargs -n1 <<<"$var" ) && -# set -- "${ARGS[@]}" "$@" -# -# but POSIX shell has neither arrays nor command substitution, so instead we -# post-process each arg (as a line of input to sed) to backslash-escape any -# character that might be a shell metacharacter, then use eval to reverse -# that process (while maintaining the separation between arguments), and wrap -# the whole thing up as a single "set" statement. -# -# This will of course break if any of these variables contains a newline or -# an unmatched quote. -# - -eval "set -- $( - printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | - xargs -n1 | - sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | - tr '\n' ' ' - )" '"$@"' - -exec "$JAVACMD" "$@" diff --git a/second-part/hw-03/solution/gradlew.bat b/second-part/hw-03/solution/gradlew.bat deleted file mode 100644 index a51ec4f..0000000 --- a/second-part/hw-03/solution/gradlew.bat +++ /dev/null @@ -1,82 +0,0 @@ -@rem -@rem Copyright 2015 the original author or authors. -@rem -@rem Licensed under the Apache License, Version 2.0 (the "License"); -@rem you may not use this file except in compliance with the License. -@rem You may obtain a copy of the License at -@rem -@rem https://www.apache.org/licenses/LICENSE-2.0 -@rem -@rem Unless required by applicable law or agreed to in writing, software -@rem distributed under the License is distributed on an "AS IS" BASIS, -@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -@rem See the License for the specific language governing permissions and -@rem limitations under the License. -@rem -@rem SPDX-License-Identifier: Apache-2.0 -@rem - -@if "%DEBUG%"=="" @echo off -@rem ########################################################################## -@rem -@rem gradlew startup script for Windows -@rem -@rem ########################################################################## - -@rem Set local scope for the variables, and ensure extensions are enabled -setlocal EnableExtensions - -set DIRNAME=%~dp0 -if "%DIRNAME%"=="" set DIRNAME=. -@rem This is normally unused -set APP_BASE_NAME=%~n0 -set APP_HOME=%DIRNAME% - -@rem Resolve any "." and ".." in APP_HOME to make it shorter. -for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi - -@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. -set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" - -@rem Find java.exe -if defined JAVA_HOME goto findJavaFromJavaHome - -set JAVA_EXE=java.exe -%JAVA_EXE% -version >NUL 2>&1 -if %ERRORLEVEL% equ 0 goto execute - -echo. 1>&2 -echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2 -echo. 1>&2 -echo Please set the JAVA_HOME variable in your environment to match the 1>&2 -echo location of your Java installation. 1>&2 - -"%COMSPEC%" /c exit 1 - -:findJavaFromJavaHome -set JAVA_HOME=%JAVA_HOME:"=% -set JAVA_EXE=%JAVA_HOME%/bin/java.exe - -if exist "%JAVA_EXE%" goto execute - -echo. 1>&2 -echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2 -echo. 1>&2 -echo Please set the JAVA_HOME variable in your environment to match the 1>&2 -echo location of your Java installation. 1>&2 - -"%COMSPEC%" /c exit 1 - -:execute -@rem Setup the command line - - - -@rem Execute gradlew -@rem endlocal doesn't take effect until after the line is parsed and variables are expanded -@rem which allows us to clear the local environment before executing the java command -endlocal & "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %* & call :exitWithErrorLevel - -:exitWithErrorLevel -@rem Use "%COMSPEC%" /c exit to allow operators to work properly in scripts -"%COMSPEC%" /c exit %ERRORLEVEL% diff --git a/second-part/hw-03/solution/settings.gradle.kts b/second-part/hw-03/solution/settings.gradle.kts deleted file mode 100644 index 0c0c3b0..0000000 --- a/second-part/hw-03/solution/settings.gradle.kts +++ /dev/null @@ -1,14 +0,0 @@ -/* - * This file was generated by the Gradle 'init' task. - * - * The settings file is used to specify which projects to include in your build. - * For more detailed information on multi-project builds, please refer to https://docs.gradle.org/9.7.1/userguide/multi_project_builds.html in the Gradle documentation. - */ - -plugins { - // Apply the foojay-resolver plugin to allow automatic download of JDKs - id("org.gradle.toolchains.foojay-resolver-convention") version "1.0.0" -} - -rootProject.name = "app" -include("app") diff --git a/second-part/hw-03/user-service/.mvn/jvm.config b/second-part/hw-03/user-service/.mvn/jvm.config new file mode 100644 index 0000000..e69de29 diff --git a/second-part/hw-03/user-service/.mvn/maven.config b/second-part/hw-03/user-service/.mvn/maven.config new file mode 100644 index 0000000..e69de29 diff --git a/second-part/hw-03/user-service/Makefile b/second-part/hw-03/user-service/Makefile new file mode 100644 index 0000000..bcc8557 --- /dev/null +++ b/second-part/hw-03/user-service/Makefile @@ -0,0 +1,13 @@ +.PHONY: up down build run + +up: + docker compose up -d + +down: + docker compose down + +build: + mvn clean package + +run: + mvn exec:java diff --git a/second-part/hw-03/user-service/README.md b/second-part/hw-03/user-service/README.md new file mode 100644 index 0000000..3dbb006 --- /dev/null +++ b/second-part/hw-03/user-service/README.md @@ -0,0 +1,16 @@ +# User Service + +## Описание + +Консольное Java-приложение для CRUD-операций над сущностью `User` с использованием Hibernate и PostgreSQL без Spring. + +PostgreSQL запускается в Docker через Docker Compose. + +## Команды Makefile + +| Команда | Описание | +| ------------ | ---------------------- | +| `make up` | Запустить PostgreSQL. | +| `make down` | Остановить PostgreSQL. | +| `make build` | Собрать Maven-проект. | +| `make run` | Запустить приложение. | diff --git a/second-part/hw-03/user-service/docker-compose.yml b/second-part/hw-03/user-service/docker-compose.yml new file mode 100644 index 0000000..0fcb78c --- /dev/null +++ b/second-part/hw-03/user-service/docker-compose.yml @@ -0,0 +1,15 @@ +services: + postgres: + image: postgres:17 + container_name: user-service-postgres + environment: + POSTGRES_DB: user_service + POSTGRES_USER: postgres + POSTGRES_PASSWORD: postgres + ports: + - "5432:5432" + volumes: + - postgres_data:/var/lib/postgresql/data + +volumes: + postgres_data: diff --git a/second-part/hw-03/user-service/pom.xml b/second-part/hw-03/user-service/pom.xml new file mode 100644 index 0000000..0987b58 --- /dev/null +++ b/second-part/hw-03/user-service/pom.xml @@ -0,0 +1,124 @@ + + + 4.0.0 + + com.example + user-service + 1.0-SNAPSHOT + + user-service + + http://www.example.com + + + UTF-8 + 17 + + + + + + org.junit + junit-bom + 5.11.0 + pom + import + + + + + + + + org.junit.jupiter + junit-jupiter-api + test + + + + + + + org.junit.jupiter + junit-jupiter-params + test + + + + + org.hibernate.orm + hibernate-core + 7.4.10.Final + + + + + org.postgresql + postgresql + 42.7.8 + + + + + + + + + + maven-clean-plugin + 3.4.0 + + + + maven-resources-plugin + 3.3.1 + + + maven-compiler-plugin + 3.13.0 + + + maven-surefire-plugin + 3.3.0 + + + maven-jar-plugin + 3.4.2 + + + maven-install-plugin + 3.1.2 + + + maven-deploy-plugin + 3.1.2 + + + + maven-site-plugin + 3.12.1 + + + maven-project-info-reports-plugin + 3.6.1 + + + + org.codehaus.mojo + exec-maven-plugin + 3.5.0 + + com.example.Main + + + + + + + diff --git a/second-part/hw-03/user-service/src/main/java/com/example/Main.java b/second-part/hw-03/user-service/src/main/java/com/example/Main.java new file mode 100644 index 0000000..d38b1c7 --- /dev/null +++ b/second-part/hw-03/user-service/src/main/java/com/example/Main.java @@ -0,0 +1,119 @@ +package com.example; + +import java.util.Scanner; + +public class Main { + + public static void main(String[] args) { + UserDao userDao = new UserDao(); + Scanner scanner = new Scanner(System.in); + + try { + while (true) { + printMenu(); + + String choice = scanner.nextLine(); + + clearConsole(); + + try { + switch (choice) { + case "1" -> createUser(userDao, scanner); + case "2" -> findUser(userDao, scanner); + case "3" -> updateUser(userDao, scanner); + case "4" -> deleteUser(userDao, scanner); + case "0" -> { + return; + } + default -> System.out.println("Неизвестная команда."); + } + } catch (NumberFormatException e) { + System.out.println("Ошибка: введите корректное число."); + } catch (RuntimeException e) { + System.out.println("Ошибка при работе с базой данных."); + } + } + } finally { + scanner.close(); + userDao.close(); + } + } + + private static void printMenu() { + System.out.println("\n1. Создать пользователя"); + System.out.println("2. Найти пользователя"); + System.out.println("3. Обновить пользователя"); + System.out.println("4. Удалить пользователя"); + System.out.println("0. Выход"); + System.out.print("Выберите действие: "); + } + + private static void createUser(UserDao userDao, Scanner scanner) { + User user = new User(); + + System.out.print("Имя: "); + user.setName(scanner.nextLine()); + + System.out.print("Email: "); + user.setEmail(scanner.nextLine()); + + System.out.print("Возраст: "); + user.setAge(Integer.parseInt(scanner.nextLine())); + + userDao.create(user); + + System.out.println("Пользователь создан: " + user); + } + + private static void findUser(UserDao userDao, Scanner scanner) { + System.out.print("ID пользователя: "); + Long id = Long.parseLong(scanner.nextLine()); + + User user = userDao.findById(id); + + if (user != null) { + System.out.println(user); + } else { + System.out.println("Пользователь не найден."); + } + } + + private static void updateUser(UserDao userDao, Scanner scanner) { + System.out.print("ID пользователя: "); + Long id = Long.parseLong(scanner.nextLine()); + + User user = userDao.findById(id); + + if (user == null) { + System.out.println("Пользователь не найден."); + return; + } + + System.out.print("Новое имя: "); + user.setName(scanner.nextLine()); + + System.out.print("Новый email: "); + user.setEmail(scanner.nextLine()); + + System.out.print("Новый возраст: "); + user.setAge(Integer.parseInt(scanner.nextLine())); + + userDao.update(user); + + System.out.println("Пользователь обновлён."); + } + + private static void deleteUser(UserDao userDao, Scanner scanner) { + System.out.print("ID пользователя: "); + Long id = Long.parseLong(scanner.nextLine()); + + userDao.deleteById(id); + + System.out.println("Пользователь удалён."); + } + + private static void clearConsole() { + System.out.print("\033[H\033[2J"); + System.out.flush(); + } +} diff --git a/second-part/hw-03/user-service/src/main/java/com/example/User.java b/second-part/hw-03/user-service/src/main/java/com/example/User.java new file mode 100644 index 0000000..fc415c6 --- /dev/null +++ b/second-part/hw-03/user-service/src/main/java/com/example/User.java @@ -0,0 +1,94 @@ +package com.example; + +import jakarta.persistence.Column; +import jakarta.persistence.Entity; +import jakarta.persistence.GeneratedValue; +import jakarta.persistence.GenerationType; +import jakarta.persistence.Id; +import jakarta.persistence.PrePersist; +import jakarta.persistence.Table; +import java.time.LocalDateTime; + +@Entity +@Table(name = "users") +public class User { + + @Id + @GeneratedValue(strategy = GenerationType.IDENTITY) + private Long id; + + @Column(nullable = false, length = 100) + private String name; + + @Column(nullable = false, unique = true, length = 255) + private String email; + + @Column(nullable = false) + private Integer age; + + @Column(name = "created_at", nullable = false, updatable = false) + private LocalDateTime createdAt; + + protected User() {} + + public User(String name, String email, Integer age) { + this.name = name; + this.email = email; + this.age = age; + } + + @PrePersist + protected void onCreate() { + createdAt = LocalDateTime.now(); + } + + public Long getId() { + return id; + } + + public String getName() { + return name; + } + + public String getEmail() { + return email; + } + + public Integer getAge() { + return age; + } + + public LocalDateTime getCreatedAt() { + return createdAt; + } + + public void setName(String name) { + this.name = name; + } + + public void setEmail(String email) { + this.email = email; + } + + public void setAge(Integer age) { + this.age = age; + } + + @Override + public String toString() { + return "User{" + + "id=" + + id + + ", name='" + + name + + '\'' + + ", email='" + + email + + '\'' + + ", age=" + + age + + ", createdAt=" + + createdAt + + '}'; + } +} diff --git a/second-part/hw-03/user-service/src/main/java/com/example/UserDao.java b/second-part/hw-03/user-service/src/main/java/com/example/UserDao.java new file mode 100644 index 0000000..c50165d --- /dev/null +++ b/second-part/hw-03/user-service/src/main/java/com/example/UserDao.java @@ -0,0 +1,96 @@ +package com.example; + +import org.hibernate.HibernateException; +import org.hibernate.Session; +import org.hibernate.SessionFactory; +import org.hibernate.Transaction; +import org.hibernate.cfg.Configuration; + +public class UserDao { + + private final SessionFactory sessionFactory; + + public UserDao() { + sessionFactory = + new Configuration().configure().addAnnotatedClass(User.class).buildSessionFactory(); + } + + public User create(User user) { + Transaction transaction = null; + + try (Session session = sessionFactory.openSession()) { + transaction = session.beginTransaction(); + + session.persist(user); + + transaction.commit(); + + return user; + } catch (HibernateException e) { + handleException(transaction, e); + return null; + } + } + + public User findById(Long id) { + try (Session session = sessionFactory.openSession()) { + return session.find(User.class, id); + } catch (HibernateException e) { + handleException(null, e); + return null; + } + } + + public User update(User user) { + Transaction transaction = null; + + try (Session session = sessionFactory.openSession()) { + transaction = session.beginTransaction(); + + User updatedUser = session.merge(user); + + transaction.commit(); + + return updatedUser; + } catch (HibernateException e) { + handleException(transaction, e); + return null; + } + } + + public void deleteById(Long id) { + Transaction transaction = null; + + try (Session session = sessionFactory.openSession()) { + transaction = session.beginTransaction(); + + User user = session.find(User.class, id); + + if (user != null) { + session.remove(user); + } + + transaction.commit(); + } catch (HibernateException e) { + handleException(transaction, e); + } + } + + public void close() { + sessionFactory.close(); + } + + private void handleException(Transaction transaction, HibernateException e) { + if (transaction != null) { + try { + transaction.rollback(); + } catch (HibernateException rollbackException) { + System.err.println("Ошибка при откате транзакции."); + } + } + + System.err.println("Ошибка при работе с Hibernate: " + e.getMessage()); + + throw e; + } +} diff --git a/second-part/hw-03/user-service/src/main/resources/hibernate.cfg.xml b/second-part/hw-03/user-service/src/main/resources/hibernate.cfg.xml new file mode 100644 index 0000000..2bef002 --- /dev/null +++ b/second-part/hw-03/user-service/src/main/resources/hibernate.cfg.xml @@ -0,0 +1,32 @@ + + + + + + + org.postgresql.Driver + + jdbc:postgresql://localhost:5432/user_service + + postgres + + postgres + + org.hibernate.dialect.PostgreSQLDialect + + true + + true + + update + + + + true + + true + + true + + +