lab3

.gradle/buildOutputCleanup/cache.properties

@@ -0,0 +1,2 @@
+#Thu May 23 14:18:27 MSK 2024
+gradle.version=8.6

HELP.md

@@ -0,0 +1,22 @@
+# Getting Started
+
+### Reference Documentation
+For further reference, please consider the following sections:
+
+* [Official Gradle documentation](https://docs.gradle.org)
+* [Spring Boot Gradle Plugin Reference Guide](https://docs.spring.io/spring-boot/docs/3.2.4/gradle-plugin/reference/html/)
+* [Create an OCI image](https://docs.spring.io/spring-boot/docs/3.2.4/gradle-plugin/reference/html/#build-image)
+* [Spring Web](https://docs.spring.io/spring-boot/docs/3.2.4/reference/htmlsingle/index.html#web)
+
+### Guides
+The following guides illustrate how to use some features concretely:
+
+* [Building a RESTful Web Service](https://spring.io/guides/gs/rest-service/)
+* [Serving Web Content with Spring MVC](https://spring.io/guides/gs/serving-web-content/)
+* [Building REST services with Spring](https://spring.io/guides/tutorials/rest/)
+
+### Additional Links
+These additional references should also help you:
+
+* [Gradle Build Scans – insights for your project's build](https://scans.gradle.com#gradle)
+

bin/main/application.properties

@@ -0,0 +1,20 @@
+# Server
+spring.main.banner-mode=off
+server.port=8080
+
+# Logger settings
+# Available levels are: TRACE, DEBUG, INFO, WARN, ERROR, FATAL, OFF
+logging.level.com.example.demo=DEBUG
+
+# JPA Settings
+spring.datasource.url=jdbc:h2:file:./data
+spring.datasource.username=sa
+spring.datasource.password=password
+spring.datasource.driver-class-name=org.h2.Driver
+spring.jpa.hibernate.ddl-auto=create
+spring.jpa.open-in-view=false
+# spring.jpa.show-sql=true
+# spring.jpa.properties.hibernate.format_sql=true
+
+# H2 console
+spring.h2.console.enabled=true

bin/test/application.properties

@@ -0,0 +1,14 @@
+# Server
+spring.main.banner-mode=off
+
+# Logger settings
+# Available levels are: TRACE, DEBUG, INFO, WARN, ERROR, FATAL, OFF
+logging.level.com.example.demo=DEBUG
+
+# JPA Settings
+spring.datasource.url=jdbc:h2:mem:testdb
+spring.datasource.username=sa
+spring.datasource.password=password
+spring.datasource.driver-class-name=org.h2.Driver
+spring.jpa.hibernate.ddl-auto=create
+spring.jpa.open-in-view=false

build.gradle

@@ -0,0 +1,43 @@
+plugins {
+	id 'java'
+	id 'org.springframework.boot' version '3.2.5'
+	id 'io.spring.dependency-management' version '1.1.4'
+}
+
+group = 'com.example'
+version = '0.0.1-SNAPSHOT'
+
+defaultTasks 'bootRun'
+
+jar {
+    enabled = false
+}
+
+bootJar {
+    archiveFileName = String.format('%s-%s.jar', rootProject.name, version)
+}
+
+assert System.properties['java.specification.version'] == '17' || '21'
+java {
+	sourceCompatibility = '17'
+}
+
+repositories {
+	mavenCentral()
+}
+
+dependencies {
+	implementation 'org.springframework.boot:spring-boot-starter-web'
+	implementation 'org.springframework.boot:spring-boot-starter-validation'
+	implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.3.0'
+	implementation 'org.modelmapper:modelmapper:3.2.0'
+
+	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+	implementation 'com.h2database:h2:2.2.224'
+
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+}
+
+tasks.named('test') {
+	useJUnitPlatform()
+}

build/resolvedMainClassName

@@ -0,0 +1 @@
+com.example.demo.DemoApplication

build/resources/main/application.properties

@@ -0,0 +1,20 @@
+# Server
+spring.main.banner-mode=off
+server.port=8080
+
+# Logger settings
+# Available levels are: TRACE, DEBUG, INFO, WARN, ERROR, FATAL, OFF
+logging.level.com.example.demo=DEBUG
+
+# JPA Settings
+spring.datasource.url=jdbc:h2:file:./data
+spring.datasource.username=sa
+spring.datasource.password=password
+spring.datasource.driver-class-name=org.h2.Driver
+spring.jpa.hibernate.ddl-auto=create
+spring.jpa.open-in-view=false
+# spring.jpa.show-sql=true
+# spring.jpa.properties.hibernate.format_sql=true
+
+# H2 console
+spring.h2.console.enabled=true

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,23 @@
+#
+# Copyright 2012-2024 the original author or 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.
+#
+
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 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.
+#
+
+##############################################################################
+#
+#   Gradle 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 Gradle
+#
+#       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/HEAD/subprojects/plugins/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 "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&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
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$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 "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( 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, 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=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$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 "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,92 @@
+@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
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+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.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'demo'

src/main/java/com/example/demo/DemoApplication.java

@@ -0,0 +1,71 @@
+package com.example.demo;
+
+import java.util.Date;
+import java.util.List;
+import java.util.Objects;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+import com.example.demo.orders.model.OrdersEntity;
+import com.example.demo.orders.service.OrdersService;
+import com.example.demo.products.model.ProductsEntity;
+import com.example.demo.products.service.ProductsService;
+import com.example.demo.types.model.TypesEntity;
+import com.example.demo.types.service.TypesService;
+import com.example.demo.users.model.UsersEntity;
+import com.example.demo.users.service.UsersService;
+
+@SpringBootApplication
+public class DemoApplication implements CommandLineRunner {
+	private final Logger log = LoggerFactory.getLogger(DemoApplication.class);
+
+	private final UsersService userService;
+	private final TypesService typesService;
+	private final ProductsService productsService;
+	private final OrdersService ordersService;
+
+	public DemoApplication(TypesService typesService, ProductsService productsService,
+			UsersService userService, OrdersService ordersService) {
+
+		this.userService = userService;
+		this.typesService = typesService;
+		this.productsService = productsService;
+		this.ordersService = ordersService;
+	}
+
+	public static void main(String[] args) {
+		SpringApplication.run(DemoApplication.class, args);
+	}
+
+	@Override
+	public void run(String... args) throws Exception {
+		if (args.length > 0 && Objects.equals("--populate", args[0])) {
+
+			log.info("Создание пользователей");
+			final var user1 = userService.create(new UsersEntity("Anton", "1234"));
+			userService.create(new UsersEntity("Dasha", "4567"));
+
+			log.info("Создание категорий");
+			final var type1 = typesService.create(new TypesEntity("Компьютера"));
+			final var type2 = typesService.create(new TypesEntity("Приставки"));
+
+			log.info("Создание продуктов");
+			final var product1 = productsService.create(new ProductsEntity(type1, "Компьютер 1", 55232.00));
+			final var product2 = productsService.create(new ProductsEntity(type1, "Компьютер 2", 70300.00));
+			final var product3 = productsService.create(new ProductsEntity(type2, "Компьютер 3", 150000.00));
+
+			log.info("Создание заказов");
+
+			final var orders = List.of(
+					new OrdersEntity(product1, 3, new Date()),
+					new OrdersEntity(product2, 2, new Date()),
+					new OrdersEntity(product3, 1, new Date()),
+					new OrdersEntity(product1, 4, new Date()));
+			orders.forEach(order -> ordersService.create(user1.getId(), order));
+		}
+	}
+}

src/main/java/com/example/demo/core/api/PageDto.java

@@ -0,0 +1,97 @@
+package com.example.demo.core.api;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class PageDto<D> {
+    private List<D> items = new ArrayList<>();
+    private int itemsCount;
+    private int currentPage;
+    private int currentSize;
+    private int totalPages;
+    private long totalItems;
+    private boolean isFirst;
+    private boolean isLast;
+    private boolean hasNext;
+    private boolean hasPrevious;
+
+    public List<D> getItems() {
+        return items;
+    }
+
+    public void setItems(List<D> items) {
+        this.items = items;
+    }
+
+    public int getItemsCount() {
+        return itemsCount;
+    }
+
+    public void setItemsCount(int itemsCount) {
+        this.itemsCount = itemsCount;
+    }
+
+    public int getCurrentPage() {
+        return currentPage;
+    }
+
+    public void setCurrentPage(int currentPage) {
+        this.currentPage = currentPage;
+    }
+
+    public int getCurrentSize() {
+        return currentSize;
+    }
+
+    public void setCurrentSize(int currentSize) {
+        this.currentSize = currentSize;
+    }
+
+    public int getTotalPages() {
+        return totalPages;
+    }
+
+    public void setTotalPages(int totalPages) {
+        this.totalPages = totalPages;
+    }
+
+    public long getTotalItems() {
+        return totalItems;
+    }
+
+    public void setTotalItems(long totalItems) {
+        this.totalItems = totalItems;
+    }
+
+    public boolean isFirst() {
+        return isFirst;
+    }
+
+    public void setFirst(boolean isFirst) {
+        this.isFirst = isFirst;
+    }
+
+    public boolean isLast() {
+        return isLast;
+    }
+
+    public void setLast(boolean isLast) {
+        this.isLast = isLast;
+    }
+
+    public boolean isHasNext() {
+        return hasNext;
+    }
+
+    public void setHasNext(boolean hasNext) {
+        this.hasNext = hasNext;
+    }
+
+    public boolean isHasPrevious() {
+        return hasPrevious;
+    }
+
+    public void setHasPrevious(boolean hasPrevious) {
+        this.hasPrevious = hasPrevious;
+    }
+}

src/main/java/com/example/demo/core/api/PageDtoMapper.java

@@ -0,0 +1,25 @@
+package com.example.demo.core.api;
+
+import java.util.function.Function;
+
+import org.springframework.data.domain.Page;
+
+public class PageDtoMapper {
+    private PageDtoMapper() {
+    }
+
+    public static <D, E> PageDto<D> toDto(Page<E> page, Function<E, D> mapper) {
+        final PageDto<D> dto = new PageDto<>();
+        dto.setItems(page.getContent().stream().map(mapper::apply).toList());
+        dto.setItemsCount(page.getNumberOfElements());
+        dto.setCurrentPage(page.getNumber());
+        dto.setCurrentSize(page.getSize());
+        dto.setTotalPages(page.getTotalPages());
+        dto.setTotalItems(page.getTotalElements());
+        dto.setFirst(page.isFirst());
+        dto.setLast(page.isLast());
+        dto.setHasNext(page.hasNext());
+        dto.setHasPrevious(page.hasPrevious());
+        return dto;
+    }
+}

src/main/java/com/example/demo/core/configuration/Constants.java

@@ -0,0 +1,12 @@
+package com.example.demo.core.configuration;
+
+public class Constants {
+    public static final String SEQUENCE_NAME = "hibernate_sequence";
+
+    public static final String API_URL = "/api/1.0";
+
+    public static final String DEFAULT_PAGE_SIZE = "5";
+
+    private Constants() {
+    }
+}

src/main/java/com/example/demo/core/configuration/MapperConfiguration.java

@@ -0,0 +1,13 @@
+package com.example.demo.core.configuration;
+
+import org.modelmapper.ModelMapper;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class MapperConfiguration {
+    @Bean
+    ModelMapper modelMapper() {
+        return new ModelMapper();
+    }
+}

src/main/java/com/example/demo/core/configuration/WebConfiguration.java

@@ -0,0 +1,15 @@
+package com.example.demo.core.configuration;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.lang.NonNull;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class WebConfiguration implements WebMvcConfigurer {
+    @Override
+    public void addCorsMappings(@NonNull CorsRegistry registry) {
+        registry.addMapping("/**")
+                .allowedMethods("GET", "POST", "PUT", "DELETE");
+    }
+}

src/main/java/com/example/demo/core/error/NotFoundException.java

@@ -0,0 +1,7 @@
+package com.example.demo.core.error;
+
+public class NotFoundException extends RuntimeException {
+    public <T> NotFoundException(Class<T> clazz, Long id) {
+        super(String.format("%s with id [%s] is not found or not exists", clazz.getSimpleName(), id));
+    }
+}

src/main/java/com/example/demo/core/model/BaseEntity.java

@@ -0,0 +1,32 @@
+package com.example.demo.core.model;
+import com.example.demo.core.configuration.Constants;
+
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.MappedSuperclass;
+import jakarta.persistence.SequenceGenerator;
+
+@MappedSuperclass
+public abstract class BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = Constants.SEQUENCE_NAME)
+    @SequenceGenerator(name = Constants.SEQUENCE_NAME, sequenceName = Constants.SEQUENCE_NAME, allocationSize = 1)
+    protected Long id;
+
+    protected BaseEntity() {
+    }
+
+    protected BaseEntity(Long id) {
+        this.id = id;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+}

src/main/java/com/example/demo/orders/api/OrdersController.java

@@ -0,0 +1,93 @@
+package com.example.demo.orders.api;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.List;
+
+import org.modelmapper.ModelMapper;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.example.demo.core.configuration.Constants;
+import com.example.demo.orders.model.OrdersEntity;
+import com.example.demo.orders.service.OrdersService;
+import com.example.demo.products.model.ProductsEntity;
+import com.example.demo.products.service.ProductsService;
+
+import jakarta.validation.Valid;
+
+@RestController
+@RequestMapping(Constants.API_URL + "/user/{user}/order")
+public class OrdersController {
+    private final OrdersService ordersService;
+    private final ProductsService productsService;
+    private final ModelMapper modelMapper;
+    private SimpleDateFormat formater = new SimpleDateFormat("dd.MM.yyyy");
+
+    public OrdersController(OrdersService ordersService, ProductsService productsService, ModelMapper modelMapper) {
+        this.ordersService = ordersService;
+        this.productsService = productsService;
+        this.modelMapper = modelMapper;
+    }
+
+    public Date StringConvertDate(String date) {
+
+        try {
+            return formater.parse(date);
+        } catch (ParseException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    public String DateConvertString(Date date) {
+        return formater.format(date);
+    }
+
+    private OrdersDto toDto(OrdersEntity entity) {
+        // String dateEntity = DateConvertString(entity.getDate());
+        // entity.setDate(dateEntity);
+        return modelMapper.map(entity, OrdersDto.class);
+    }
+
+    private OrdersEntity toEntity(OrdersDto dto) {
+        final OrdersEntity entity = modelMapper.map(dto, OrdersEntity.class);
+        entity.setProduct(productsService.get(dto.getProductId()));
+        return entity;
+    }
+
+    @GetMapping
+    public List<OrdersDto> getAll(@PathVariable(name = "user") Long userId,
+            @RequestParam(name = "productId", defaultValue = "0") ProductsEntity product) {
+        return ordersService.getAll(userId).stream().map(this::toDto).toList();
+    }
+
+    @GetMapping("/{id}")
+    public OrdersDto get(@PathVariable(name = "user") Long userId, @PathVariable(name = "id") Long id) {
+        return toDto(ordersService.get(userId, id));
+    }
+
+    @PostMapping
+    public OrdersDto create(@PathVariable(name = "user") Long userId, @RequestBody @Valid OrdersDto dto) {
+        return toDto(ordersService.create(userId, toEntity(dto)));
+    }
+
+    @PutMapping("/{id}")
+    public OrdersDto update(@PathVariable(name = "user") Long userId, @PathVariable(name = "id") Long id,
+            @RequestBody OrdersDto dto) {
+        return toDto(ordersService.update(userId, id, toEntity(dto)));
+    }
+
+    @DeleteMapping("/{id}")
+    public OrdersDto delete(@PathVariable(name = "user") Long userId, @PathVariable(name = "id") Long id) {
+        return toDto(ordersService.delete(userId, id));
+    }
+}