├── .gitignore ├── build.gradle ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── settings.gradle └── src ├── main └── java │ └── org │ └── example │ ├── Main.java │ ├── PasswordGeneratePolicy.java │ ├── PasswordValidator.java │ ├── RandomPasswordGenerator.java │ ├── calculator │ ├── CalculatorMain.java │ ├── domain │ │ ├── ArithmeticOperator.java │ │ ├── Calculator.java │ │ └── PositiveNumber.java │ ├── tobe │ │ ├── AdditionOperator.java │ │ ├── ArithmeticOperator.java │ │ └── DivisionOperator.java │ └── ui │ │ ├── ConsoleInputUI.java │ │ └── ConsoleOutputUI.java │ ├── grade │ ├── domain │ │ ├── Course.java │ │ ├── Courses.java │ │ ├── GradeCalculator.java │ │ └── GradeResult.java │ └── ui │ │ └── ConsoleOutputUI.java │ └── hr │ ├── controller │ └── HRManagementSystemMain.java │ ├── domain │ ├── EmployRepository.java │ └── Employee.java │ ├── infra │ └── InMemoryEmployRepository.java │ ├── service │ ├── EmployeeCommandService.java │ ├── EmployeeQueryService.java │ └── dto │ │ ├── EmployeeCreateRequest.java │ │ └── EmployeeCreatedResponse.java │ └── ui │ └── console │ ├── ConsoleInputUI.java │ └── ConsoleOutputUI.java └── test └── java ├── CorrectPasswordGenerator.java ├── GradeCalculatorTest.java ├── PasswordValidatorTest.java └── WrongPasswordGenerator.java /.gitignore: -------------------------------------------------------------------------------- 1 | .gradle 2 | build/ 3 | !gradle/wrapper/gradle-wrapper.jar 4 | !**/src/main/**/build/ 5 | !**/src/test/**/build/ 6 | 7 | ### IntelliJ IDEA ### 8 | .idea 9 | *.iws 10 | *.iml 11 | *.ipr 12 | out/ 13 | !**/src/main/**/out/ 14 | !**/src/test/**/out/ 15 | 16 | ### Eclipse ### 17 | .apt_generated 18 | .classpath 19 | .factorypath 20 | .project 21 | .settings 22 | .springBeans 23 | .sts4-cache 24 | bin/ 25 | !**/src/main/**/bin/ 26 | !**/src/test/**/bin/ 27 | 28 | ### NetBeans ### 29 | /nbproject/private/ 30 | /nbbuild/ 31 | /dist/ 32 | /nbdist/ 33 | /.nb-gradle/ 34 | 35 | ### VS Code ### 36 | .vscode/ 37 | 38 | ### Mac OS ### 39 | .DS_Store -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | plugins { 2 | id 'java' 3 | } 4 | 5 | group 'org.example' 6 | version '1.0-SNAPSHOT' 7 | 8 | repositories { 9 | mavenCentral() 10 | } 11 | 12 | dependencies { 13 | implementation 'org.passay:passay:1.6.1' 14 | 15 | testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.1' 16 | testImplementation 'org.assertj:assertj-core:3.23.1' 17 | testImplementation 'org.junit.jupiter:junit-jupiter-params:5.8.2' 18 | 19 | 20 | testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.1' 21 | } 22 | 23 | test { 24 | useJUnitPlatform() 25 | } -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/serverwizard/oop-practice/0d84029413f451ffadf9d987931a944a02c6addb/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-bin.zip 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | # 4 | # Copyright © 2015-2021 the original authors. 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # https://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | ############################################################################## 20 | # 21 | # Gradle start up script for POSIX generated by Gradle. 22 | # 23 | # Important for running: 24 | # 25 | # (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is 26 | # noncompliant, but you have some other compliant shell such as ksh or 27 | # bash, then to run this script, type that shell name before the whole 28 | # command line, like: 29 | # 30 | # ksh Gradle 31 | # 32 | # Busybox and similar reduced shells will NOT work, because this script 33 | # requires all of these POSIX shell features: 34 | # * functions; 35 | # * expansions «$var», «${var}», «${var:-default}», «${var+SET}», 36 | # «${var#prefix}», «${var%suffix}», and «$( cmd )»; 37 | # * compound commands having a testable exit status, especially «case»; 38 | # * various built-in commands including «command», «set», and «ulimit». 39 | # 40 | # Important for patching: 41 | # 42 | # (2) This script targets any POSIX shell, so it avoids extensions provided 43 | # by Bash, Ksh, etc; in particular arrays are avoided. 44 | # 45 | # The "traditional" practice of packing multiple parameters into a 46 | # space-separated string is a well documented source of bugs and security 47 | # problems, so this is (mostly) avoided, by progressively accumulating 48 | # options in "$@", and eventually passing that to Java. 49 | # 50 | # Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, 51 | # and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; 52 | # see the in-line comments for details. 53 | # 54 | # There are tweaks for specific operating systems such as AIX, CygWin, 55 | # Darwin, MinGW, and NonStop. 56 | # 57 | # (3) This script is generated from the Groovy template 58 | # https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt 59 | # within the Gradle project. 60 | # 61 | # You can find Gradle at https://github.com/gradle/gradle/. 62 | # 63 | ############################################################################## 64 | 65 | # Attempt to set APP_HOME 66 | 67 | # Resolve links: $0 may be a link 68 | app_path=$0 69 | 70 | # Need this for daisy-chained symlinks. 71 | while 72 | APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path 73 | [ -h "$app_path" ] 74 | do 75 | ls=$( ls -ld "$app_path" ) 76 | link=${ls#*' -> '} 77 | case $link in #( 78 | /*) app_path=$link ;; #( 79 | *) app_path=$APP_HOME$link ;; 80 | esac 81 | done 82 | 83 | APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit 84 | 85 | APP_NAME="Gradle" 86 | APP_BASE_NAME=${0##*/} 87 | 88 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 89 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' 90 | 91 | # Use the maximum available, or set MAX_FD != -1 to use that value. 92 | MAX_FD=maximum 93 | 94 | warn () { 95 | echo "$*" 96 | } >&2 97 | 98 | die () { 99 | echo 100 | echo "$*" 101 | echo 102 | exit 1 103 | } >&2 104 | 105 | # OS specific support (must be 'true' or 'false'). 106 | cygwin=false 107 | msys=false 108 | darwin=false 109 | nonstop=false 110 | case "$( uname )" in #( 111 | CYGWIN* ) cygwin=true ;; #( 112 | Darwin* ) darwin=true ;; #( 113 | MSYS* | MINGW* ) msys=true ;; #( 114 | NONSTOP* ) nonstop=true ;; 115 | esac 116 | 117 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 118 | 119 | 120 | # Determine the Java command to use to start the JVM. 121 | if [ -n "$JAVA_HOME" ] ; then 122 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 123 | # IBM's JDK on AIX uses strange locations for the executables 124 | JAVACMD=$JAVA_HOME/jre/sh/java 125 | else 126 | JAVACMD=$JAVA_HOME/bin/java 127 | fi 128 | if [ ! -x "$JAVACMD" ] ; then 129 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 130 | 131 | Please set the JAVA_HOME variable in your environment to match the 132 | location of your Java installation." 133 | fi 134 | else 135 | JAVACMD=java 136 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 137 | 138 | Please set the JAVA_HOME variable in your environment to match the 139 | location of your Java installation." 140 | fi 141 | 142 | # Increase the maximum file descriptors if we can. 143 | if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then 144 | case $MAX_FD in #( 145 | max*) 146 | MAX_FD=$( ulimit -H -n ) || 147 | warn "Could not query maximum file descriptor limit" 148 | esac 149 | case $MAX_FD in #( 150 | '' | soft) :;; #( 151 | *) 152 | ulimit -n "$MAX_FD" || 153 | warn "Could not set maximum file descriptor limit to $MAX_FD" 154 | esac 155 | fi 156 | 157 | # Collect all arguments for the java command, stacking in reverse order: 158 | # * args from the command line 159 | # * the main class name 160 | # * -classpath 161 | # * -D...appname settings 162 | # * --module-path (only if needed) 163 | # * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. 164 | 165 | # For Cygwin or MSYS, switch paths to Windows format before running java 166 | if "$cygwin" || "$msys" ; then 167 | APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) 168 | CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) 169 | 170 | JAVACMD=$( cygpath --unix "$JAVACMD" ) 171 | 172 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 173 | for arg do 174 | if 175 | case $arg in #( 176 | -*) false ;; # don't mess with options #( 177 | /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath 178 | [ -e "$t" ] ;; #( 179 | *) false ;; 180 | esac 181 | then 182 | arg=$( cygpath --path --ignore --mixed "$arg" ) 183 | fi 184 | # Roll the args list around exactly as many times as the number of 185 | # args, so each arg winds up back in the position where it started, but 186 | # possibly modified. 187 | # 188 | # NB: a `for` loop captures its iteration list before it begins, so 189 | # changing the positional parameters here affects neither the number of 190 | # iterations, nor the values presented in `arg`. 191 | shift # remove old arg 192 | set -- "$@" "$arg" # push replacement arg 193 | done 194 | fi 195 | 196 | # Collect all arguments for the java command; 197 | # * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of 198 | # shell script including quotes and variable substitutions, so put them in 199 | # double quotes to make sure that they get re-expanded; and 200 | # * put everything else in single quotes, so that it's not re-expanded. 201 | 202 | set -- \ 203 | "-Dorg.gradle.appname=$APP_BASE_NAME" \ 204 | -classpath "$CLASSPATH" \ 205 | org.gradle.wrapper.GradleWrapperMain \ 206 | "$@" 207 | 208 | # Use "xargs" to parse quoted args. 209 | # 210 | # With -n1 it outputs one arg per line, with the quotes and backslashes removed. 211 | # 212 | # In Bash we could simply go: 213 | # 214 | # readarray ARGS < <( xargs -n1 <<<"$var" ) && 215 | # set -- "${ARGS[@]}" "$@" 216 | # 217 | # but POSIX shell has neither arrays nor command substitution, so instead we 218 | # post-process each arg (as a line of input to sed) to backslash-escape any 219 | # character that might be a shell metacharacter, then use eval to reverse 220 | # that process (while maintaining the separation between arguments), and wrap 221 | # the whole thing up as a single "set" statement. 222 | # 223 | # This will of course break if any of these variables contains a newline or 224 | # an unmatched quote. 225 | # 226 | 227 | eval "set -- $( 228 | printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | 229 | xargs -n1 | 230 | sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | 231 | tr '\n' ' ' 232 | )" '"$@"' 233 | 234 | exec "$JAVACMD" "$@" 235 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @rem 2 | @rem Copyright 2015 the original author or authors. 3 | @rem 4 | @rem Licensed under the Apache License, Version 2.0 (the "License"); 5 | @rem you may not use this file except in compliance with the License. 6 | @rem You may obtain a copy of the License at 7 | @rem 8 | @rem https://www.apache.org/licenses/LICENSE-2.0 9 | @rem 10 | @rem Unless required by applicable law or agreed to in writing, software 11 | @rem distributed under the License is distributed on an "AS IS" BASIS, 12 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | @rem See the License for the specific language governing permissions and 14 | @rem limitations under the License. 15 | @rem 16 | 17 | @if "%DEBUG%" == "" @echo off 18 | @rem ########################################################################## 19 | @rem 20 | @rem Gradle startup script for Windows 21 | @rem 22 | @rem ########################################################################## 23 | 24 | @rem Set local scope for the variables with windows NT shell 25 | if "%OS%"=="Windows_NT" setlocal 26 | 27 | set DIRNAME=%~dp0 28 | if "%DIRNAME%" == "" set DIRNAME=. 29 | set APP_BASE_NAME=%~n0 30 | set APP_HOME=%DIRNAME% 31 | 32 | @rem Resolve any "." and ".." in APP_HOME to make it shorter. 33 | for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi 34 | 35 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 36 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" 37 | 38 | @rem Find java.exe 39 | if defined JAVA_HOME goto findJavaFromJavaHome 40 | 41 | set JAVA_EXE=java.exe 42 | %JAVA_EXE% -version >NUL 2>&1 43 | if "%ERRORLEVEL%" == "0" goto execute 44 | 45 | echo. 46 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 47 | echo. 48 | echo Please set the JAVA_HOME variable in your environment to match the 49 | echo location of your Java installation. 50 | 51 | goto fail 52 | 53 | :findJavaFromJavaHome 54 | set JAVA_HOME=%JAVA_HOME:"=% 55 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 56 | 57 | if exist "%JAVA_EXE%" goto execute 58 | 59 | echo. 60 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 61 | echo. 62 | echo Please set the JAVA_HOME variable in your environment to match the 63 | echo location of your Java installation. 64 | 65 | goto fail 66 | 67 | :execute 68 | @rem Setup the command line 69 | 70 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 71 | 72 | 73 | @rem Execute Gradle 74 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* 75 | 76 | :end 77 | @rem End local scope for the variables with windows NT shell 78 | if "%ERRORLEVEL%"=="0" goto mainEnd 79 | 80 | :fail 81 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 82 | rem the _cmd.exe /c_ return code! 83 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 84 | exit /b 1 85 | 86 | :mainEnd 87 | if "%OS%"=="Windows_NT" endlocal 88 | 89 | :omega 90 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | rootProject.name = 'oop' 2 | 3 | -------------------------------------------------------------------------------- /src/main/java/org/example/Main.java: -------------------------------------------------------------------------------- 1 | package org.example; 2 | 3 | public class Main { 4 | public static void main(String[] args) { 5 | System.out.println("Hello world!"); 6 | } 7 | } -------------------------------------------------------------------------------- /src/main/java/org/example/PasswordGeneratePolicy.java: -------------------------------------------------------------------------------- 1 | package org.example; 2 | 3 | public interface PasswordGeneratePolicy { 4 | String generatePassword(); 5 | } 6 | -------------------------------------------------------------------------------- /src/main/java/org/example/PasswordValidator.java: -------------------------------------------------------------------------------- 1 | package org.example; 2 | 3 | public class PasswordValidator { 4 | 5 | /** 6 | * 비밀번호가 8자 미만 또는 12자 초과하는 경우 IllegalArgumentException 예외가 발생한다. 7 | */ 8 | public void validate(String password) { 9 | int length = password.length(); 10 | 11 | if (length < 8 || length > 12) { 12 | throw new IllegalArgumentException("비밀번호는 최소 8자 이상 12자 이하여야 한다."); 13 | } 14 | } 15 | 16 | public void validate2(PasswordGeneratePolicy passwordGeneratePolicy) { 17 | String password = passwordGeneratePolicy.generatePassword(); 18 | 19 | int length = password.length(); 20 | if (length < 8 || length > 12) { 21 | throw new IllegalArgumentException("비밀번호는 최소 8자 이상 12자 이하여야 한다."); 22 | } 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /src/main/java/org/example/RandomPasswordGenerator.java: -------------------------------------------------------------------------------- 1 | package org.example; 2 | 3 | import org.passay.CharacterData; 4 | import org.passay.CharacterRule; 5 | import org.passay.EnglishCharacterData; 6 | import org.passay.PasswordGenerator; 7 | 8 | public class RandomPasswordGenerator implements PasswordGeneratePolicy { 9 | /** 10 | * Special characters allowed in password. 11 | */ 12 | public static final String ALLOWED_SPL_CHARACTERS = "!@#$%^&*()_+"; 13 | 14 | public static final String ERROR_CODE = "ERRONEOUS_SPECIAL_CHARS"; 15 | 16 | @Override 17 | public String generatePassword() { 18 | PasswordGenerator gen = new PasswordGenerator(); 19 | 20 | CharacterData lowerCaseChars = EnglishCharacterData.LowerCase; 21 | CharacterRule lowerCaseRule = new CharacterRule(lowerCaseChars); 22 | lowerCaseRule.setNumberOfCharacters(2); 23 | 24 | CharacterData upperCaseChars = EnglishCharacterData.UpperCase; 25 | CharacterRule upperCaseRule = new CharacterRule(upperCaseChars); 26 | upperCaseRule.setNumberOfCharacters(2); 27 | 28 | CharacterData digitChars = EnglishCharacterData.Digit; 29 | CharacterRule digitRule = new CharacterRule(digitChars); 30 | digitRule.setNumberOfCharacters(2); 31 | 32 | CharacterData specialChars = new CharacterData() { 33 | public String getErrorCode() { 34 | return ERROR_CODE; 35 | } 36 | 37 | public String getCharacters() { 38 | return ALLOWED_SPL_CHARACTERS; 39 | } 40 | }; 41 | CharacterRule splCharRule = new CharacterRule(specialChars); 42 | splCharRule.setNumberOfCharacters(2); 43 | 44 | // 0 ~ 12 45 | return gen.generatePassword((int) (Math.random() * 13), splCharRule, lowerCaseRule, upperCaseRule, digitRule); 46 | } 47 | } 48 | -------------------------------------------------------------------------------- /src/main/java/org/example/calculator/CalculatorMain.java: -------------------------------------------------------------------------------- 1 | package org.example.calculator; 2 | 3 | import org.example.calculator.domain.Calculator; 4 | import org.example.calculator.domain.PositiveNumber; 5 | import org.example.calculator.ui.ConsoleInputUI; 6 | import org.example.calculator.ui.ConsoleOutputUI; 7 | 8 | public class CalculatorMain { 9 | 10 | public static void main(String[] args) { 11 | PositiveNumber operand1 = new PositiveNumber(ConsoleInputUI.enterOperand()); 12 | String operator = ConsoleInputUI.enterOperator(); 13 | PositiveNumber operand2 = new PositiveNumber(ConsoleInputUI.enterOperand()); 14 | 15 | int result = Calculator.calculate(operand1, operator, operand2); 16 | 17 | ConsoleOutputUI.printResult(result); 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/main/java/org/example/calculator/domain/ArithmeticOperator.java: -------------------------------------------------------------------------------- 1 | package org.example.calculator.domain; 2 | 3 | import java.util.Arrays; 4 | 5 | public enum ArithmeticOperator { 6 | ADDITION("+") { 7 | @Override 8 | public int calculate(final int operand1, final int operand2) { 9 | return operand1 + operand2; 10 | } 11 | }, 12 | SUBTRACTION("-") { 13 | @Override 14 | public int calculate(final int operand1, final int operand2) { 15 | return operand1 - operand2; 16 | } 17 | }, 18 | MULTIPLICATION("*") { 19 | @Override 20 | public int calculate(final int operand1, final int operand2) { 21 | return operand1 * operand2; 22 | } 23 | }, DIVISION("/") { 24 | @Override 25 | public int calculate(final int operand1, final int operand2) { 26 | if (operand2 == 0) { 27 | throw new IllegalArgumentException("0으로 나눌 수 없습니다."); 28 | } 29 | return operand1 / operand2; 30 | } 31 | }; 32 | 33 | private final String operator; 34 | 35 | ArithmeticOperator(String operator) { 36 | this.operator = operator; 37 | } 38 | 39 | public abstract int calculate(final int operand1, final int operand2); 40 | 41 | public static int calculate(final int operand1, final String operator, final int operand2) { 42 | ArithmeticOperator selectedArithmeticOperator = Arrays.stream(ArithmeticOperator.values()) 43 | .filter(v -> v.operator.equals(operator)) 44 | .findFirst() 45 | .orElseThrow(() -> new IllegalArgumentException("올바른 사칙연산이 아닙니다.")); 46 | 47 | return selectedArithmeticOperator.calculate(operand1, operand2); 48 | } 49 | } -------------------------------------------------------------------------------- /src/main/java/org/example/calculator/domain/Calculator.java: -------------------------------------------------------------------------------- 1 | package org.example.calculator.domain; 2 | 3 | 4 | 5 | import org.example.calculator.tobe.AdditionOperator; 6 | import org.example.calculator.tobe.ArithmeticOperator; 7 | import org.example.calculator.tobe.DivisionOperator; 8 | 9 | import java.util.List; 10 | 11 | public class Calculator { 12 | private static final List arithmeticOperators = List.of(new AdditionOperator(), new DivisionOperator()); 13 | 14 | public static int calculate(PositiveNumber num1, String operator, PositiveNumber num2) { 15 | return arithmeticOperators.stream() 16 | .filter(arithmeticOperator -> arithmeticOperator.supports(operator)) 17 | .map(arithmeticOperator -> arithmeticOperator.calculate(num1, num2)) 18 | .findFirst() 19 | .orElseThrow(() -> new IllegalArgumentException("올바른 사칙연산이 아닙니다.")); 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /src/main/java/org/example/calculator/domain/PositiveNumber.java: -------------------------------------------------------------------------------- 1 | package org.example.calculator.domain; 2 | 3 | public class PositiveNumber { 4 | private static final String ZERO_OR_NEGATIVE_NUMBER_EXCEPTION_MESSAGE = "0 또는 음수를 전달할 수 없습니다."; 5 | 6 | private final int value; 7 | 8 | public PositiveNumber(int value) { 9 | validate(value); 10 | this.value = value; 11 | } 12 | 13 | private void validate(int value) { 14 | if (isNegativeNumber(value)) { 15 | throw new IllegalArgumentException(ZERO_OR_NEGATIVE_NUMBER_EXCEPTION_MESSAGE); 16 | } 17 | } 18 | 19 | private boolean isNegativeNumber(int number) { 20 | return number <= 0; 21 | } 22 | 23 | public int toInt() { 24 | return value; 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /src/main/java/org/example/calculator/tobe/AdditionOperator.java: -------------------------------------------------------------------------------- 1 | package org.example.calculator.tobe; 2 | 3 | import org.example.calculator.domain.PositiveNumber; 4 | 5 | public class AdditionOperator implements ArithmeticOperator { 6 | 7 | @Override 8 | public boolean supports(String operator) { 9 | return "+".equals(operator); 10 | } 11 | 12 | @Override 13 | public int calculate(PositiveNumber operand1, PositiveNumber operand2) { 14 | return operand1.toInt() + operand2.toInt(); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /src/main/java/org/example/calculator/tobe/ArithmeticOperator.java: -------------------------------------------------------------------------------- 1 | package org.example.calculator.tobe; 2 | 3 | import org.example.calculator.domain.PositiveNumber; 4 | 5 | public interface ArithmeticOperator { 6 | boolean supports(String operator); 7 | int calculate(final PositiveNumber operand1, final PositiveNumber operand2); 8 | } 9 | -------------------------------------------------------------------------------- /src/main/java/org/example/calculator/tobe/DivisionOperator.java: -------------------------------------------------------------------------------- 1 | package org.example.calculator.tobe; 2 | 3 | import org.example.calculator.domain.PositiveNumber; 4 | 5 | public class DivisionOperator implements ArithmeticOperator{ 6 | @Override 7 | public boolean supports(String operator) { 8 | return "/".equals(operator); 9 | } 10 | 11 | @Override 12 | public int calculate(PositiveNumber operand1, PositiveNumber operand2) { 13 | return operand1.toInt() / operand2.toInt(); 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /src/main/java/org/example/calculator/ui/ConsoleInputUI.java: -------------------------------------------------------------------------------- 1 | package org.example.calculator.ui; 2 | 3 | import java.util.Scanner; 4 | 5 | public class ConsoleInputUI { 6 | private static final Scanner sc = new Scanner(System.in); 7 | 8 | public static int enterOperand() { 9 | System.out.println("숫자 입력: "); 10 | return sc.nextInt(); 11 | } 12 | 13 | public static String enterOperator() { 14 | System.out.println("연산자 입력: "); 15 | return String.valueOf(sc.next().charAt(0)); 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /src/main/java/org/example/calculator/ui/ConsoleOutputUI.java: -------------------------------------------------------------------------------- 1 | package org.example.calculator.ui; 2 | 3 | import java.util.Scanner; 4 | 5 | public class ConsoleOutputUI { 6 | public static void printResult(int calculate) { 7 | System.out.println("결과 값: " + calculate); 8 | } 9 | } 10 | -------------------------------------------------------------------------------- /src/main/java/org/example/grade/domain/Course.java: -------------------------------------------------------------------------------- 1 | package org.example.grade.domain; 2 | 3 | public class Course { 4 | public static final int MAJOR_CREDIT = 3; 5 | public static final int GENERAL_CREDIT = 2; 6 | 7 | private final String subject; // 과목 8 | private final int credit; // 학점 9 | private final String grade; // 성적 10 | 11 | public Course(String subject, int credit, String grade) { 12 | this.subject = subject; 13 | this.credit = credit; 14 | this.grade = grade; 15 | } 16 | 17 | public double multiplyCreditAndCourseGrade() { 18 | return credit * getGradeToNumber(); 19 | } 20 | 21 | public int getCredit() { 22 | return this.credit; 23 | } 24 | 25 | private double getGradeToNumber() { 26 | double gradeInt = 0; 27 | switch (this.grade) { 28 | case "A+": 29 | gradeInt = 4.5; 30 | break; 31 | case "A": 32 | gradeInt = 4.0; 33 | break; 34 | case "B+": 35 | gradeInt = 3.5; 36 | break; 37 | case "B": 38 | gradeInt = 3.0; 39 | break; 40 | case "C+": 41 | gradeInt = 2.5; 42 | break; 43 | case "C": 44 | gradeInt = 2.0; 45 | break; 46 | case "D+": 47 | gradeInt = 1.5; 48 | break; 49 | case "D": 50 | gradeInt = 1.0; 51 | break; 52 | case "F": 53 | gradeInt = 0.0; 54 | break; 55 | } 56 | 57 | return gradeInt; 58 | } 59 | } -------------------------------------------------------------------------------- /src/main/java/org/example/grade/domain/Courses.java: -------------------------------------------------------------------------------- 1 | package org.example.grade.domain; 2 | 3 | import java.util.List; 4 | 5 | public class Courses { 6 | private final List courses; 7 | 8 | public Courses(List courses) { 9 | this.courses = courses; 10 | } 11 | 12 | // 학점수×교과목 평점 13 | public double multiplyCreditAndCourseGrade() { 14 | return courses.stream() 15 | .mapToDouble(Course::multiplyCreditAndCourseGrade) 16 | .sum(); 17 | } 18 | 19 | // 총 이수한 학점 20 | public int calculateTotalCompletedCredit() { 21 | return courses.stream() 22 | .mapToInt(Course::getCredit) 23 | .sum(); 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /src/main/java/org/example/grade/domain/GradeCalculator.java: -------------------------------------------------------------------------------- 1 | package org.example.grade.domain; 2 | 3 | public class GradeCalculator { 4 | private final Courses courses; 5 | 6 | public GradeCalculator(Courses courses) { 7 | this.courses = courses; 8 | } 9 | 10 | public GradeResult calculateGrade() { 11 | double totalMultipliedCreditAndCourseGrade = courses.multiplyCreditAndCourseGrade(); 12 | int totalCompletedCredit = courses.calculateTotalCompletedCredit(); 13 | double averageGrade = totalMultipliedCreditAndCourseGrade / totalCompletedCredit; 14 | 15 | return new GradeResult(averageGrade, totalCompletedCredit); 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /src/main/java/org/example/grade/domain/GradeResult.java: -------------------------------------------------------------------------------- 1 | package org.example.grade.domain; 2 | 3 | public class GradeResult { 4 | final private double averageGrade; 5 | final private int totalCompletedCredit; 6 | 7 | public GradeResult(double averageGrade, int totalCompletedCredit) { 8 | this.averageGrade = averageGrade; 9 | this.totalCompletedCredit = totalCompletedCredit; 10 | } 11 | 12 | public double getAverageGrade() { 13 | return averageGrade; 14 | } 15 | 16 | public int getTotalCompletedCredit() { 17 | return totalCompletedCredit; 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/main/java/org/example/grade/ui/ConsoleOutputUI.java: -------------------------------------------------------------------------------- 1 | package org.example.grade.ui; 2 | 3 | import org.example.grade.domain.GradeResult; 4 | 5 | public class ConsoleOutputUI { 6 | public static void printGrade(GradeResult gradeResult) { 7 | System.out.println("이번 학기 학점: " + gradeResult.getAverageGrade() + " (총 " + gradeResult.getTotalCompletedCredit() + "학점)"); 8 | } 9 | } 10 | -------------------------------------------------------------------------------- /src/main/java/org/example/hr/controller/HRManagementSystemMain.java: -------------------------------------------------------------------------------- 1 | package org.example.hr.controller; 2 | 3 | import org.example.hr.infra.InMemoryEmployRepository; 4 | import org.example.hr.service.EmployeeCommandService; 5 | import org.example.hr.service.EmployeeQueryService; 6 | import org.example.hr.service.dto.EmployeeCreateRequest; 7 | import org.example.hr.service.dto.EmployeeCreatedResponse; 8 | import org.example.hr.ui.console.ConsoleInputUI; 9 | import org.example.hr.ui.console.ConsoleOutputUI; 10 | 11 | public class HRManagementSystemMain { 12 | private static final InMemoryEmployRepository repository = new InMemoryEmployRepository(); 13 | private static final EmployeeCommandService commandService = new EmployeeCommandService(repository); 14 | private static final EmployeeQueryService queryService = new EmployeeQueryService(repository); 15 | 16 | public static void main(String[] args) { 17 | String name = ConsoleInputUI.enterName(); 18 | String no = ConsoleInputUI.enterNo(); 19 | String ssn = ConsoleInputUI.socialSecurityNumber(); 20 | 21 | commandService.add(new EmployeeCreateRequest(no, name, ssn)); 22 | EmployeeCreatedResponse response = queryService.findByNo(no); 23 | 24 | ConsoleOutputUI.printResult(response); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /src/main/java/org/example/hr/domain/EmployRepository.java: -------------------------------------------------------------------------------- 1 | package org.example.hr.domain; 2 | 3 | public interface EmployRepository { 4 | void createEmployee(Employee employee); 5 | 6 | Employee findByNo(String no); 7 | } 8 | -------------------------------------------------------------------------------- /src/main/java/org/example/hr/domain/Employee.java: -------------------------------------------------------------------------------- 1 | package org.example.hr.domain; 2 | 3 | public class Employee { 4 | private String no; 5 | private String name; 6 | private String socialSecurityNumber; 7 | 8 | public Employee(String no, String name, String socialSecurityNumber) { 9 | this.no = no; 10 | this.name = name; 11 | this.socialSecurityNumber = socialSecurityNumber; 12 | } 13 | 14 | public String getNo() { 15 | return no; 16 | } 17 | 18 | public String getName() { 19 | return name; 20 | } 21 | 22 | public String getSocialSecurityNumber() { 23 | return socialSecurityNumber; 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /src/main/java/org/example/hr/infra/InMemoryEmployRepository.java: -------------------------------------------------------------------------------- 1 | package org.example.hr.infra; 2 | 3 | import org.example.hr.domain.Employee; 4 | import org.example.hr.domain.EmployRepository; 5 | 6 | import java.util.HashMap; 7 | import java.util.Map; 8 | 9 | public class InMemoryEmployRepository implements EmployRepository { 10 | private final Map employees = new HashMap<>(); 11 | 12 | @Override 13 | public void createEmployee(Employee employee) { 14 | employees.put(employee.getNo(), employee); 15 | } 16 | 17 | @Override 18 | public Employee findByNo(String no) { 19 | return employees.get(no); 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /src/main/java/org/example/hr/service/EmployeeCommandService.java: -------------------------------------------------------------------------------- 1 | package org.example.hr.service; 2 | 3 | import org.example.hr.domain.EmployRepository; 4 | import org.example.hr.service.dto.EmployeeCreateRequest; 5 | 6 | public class EmployeeCommandService { 7 | private final EmployRepository employRepository; 8 | 9 | public EmployeeCommandService(EmployRepository employRepository) { 10 | this.employRepository = employRepository; 11 | } 12 | 13 | public void add(EmployeeCreateRequest createRequest) { 14 | employRepository.createEmployee(createRequest.toDomain()); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /src/main/java/org/example/hr/service/EmployeeQueryService.java: -------------------------------------------------------------------------------- 1 | package org.example.hr.service; 2 | 3 | import org.example.hr.domain.EmployRepository; 4 | import org.example.hr.service.dto.EmployeeCreatedResponse; 5 | 6 | public class EmployeeQueryService { 7 | private final EmployRepository employRepository; 8 | 9 | public EmployeeQueryService(EmployRepository employRepository) { 10 | this.employRepository = employRepository; 11 | } 12 | 13 | public EmployeeCreatedResponse findByNo(String no) { 14 | return EmployeeCreatedResponse.of(employRepository.findByNo(no)); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /src/main/java/org/example/hr/service/dto/EmployeeCreateRequest.java: -------------------------------------------------------------------------------- 1 | package org.example.hr.service.dto; 2 | 3 | import org.example.hr.domain.Employee; 4 | 5 | public class EmployeeCreateRequest { 6 | private String no; 7 | private String name; 8 | private String socialSecurityNumber; 9 | 10 | public EmployeeCreateRequest(String no, String name, String socialSecurityNumber) { 11 | this.no = no; 12 | this.name = name; 13 | this.socialSecurityNumber = socialSecurityNumber; 14 | } 15 | 16 | public Employee toDomain() { 17 | return new Employee(no, name, socialSecurityNumber); 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/main/java/org/example/hr/service/dto/EmployeeCreatedResponse.java: -------------------------------------------------------------------------------- 1 | package org.example.hr.service.dto; 2 | 3 | import org.example.hr.domain.Employee; 4 | 5 | public class EmployeeCreatedResponse { 6 | private String no; 7 | private String name; 8 | private String socialSecurityNumber; 9 | 10 | public static EmployeeCreatedResponse of(Employee employee) { 11 | return new EmployeeCreatedResponse(employee.getNo(), employee.getName(), employee.getSocialSecurityNumber()); 12 | } 13 | 14 | private EmployeeCreatedResponse(String no, String name, String socialSecurityNumber) { 15 | this.no = no; 16 | this.name = name; 17 | this.socialSecurityNumber = socialSecurityNumber; 18 | } 19 | 20 | @Override 21 | public String toString() { 22 | return "no='" + no + '\'' + 23 | ", name='" + name + '\'' + 24 | ", socialSecurityNumber='" + socialSecurityNumber + '\''; 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /src/main/java/org/example/hr/ui/console/ConsoleInputUI.java: -------------------------------------------------------------------------------- 1 | package org.example.hr.ui.console; 2 | 3 | import java.util.Scanner; 4 | 5 | public class ConsoleInputUI { 6 | private static final Scanner sc = new Scanner(System.in); 7 | 8 | public static String enterName() { 9 | System.out.println("이름 입력: "); 10 | return sc.nextLine(); 11 | } 12 | 13 | public static String enterNo() { 14 | System.out.println("사번 입력: "); 15 | return sc.nextLine(); 16 | } 17 | 18 | public static String socialSecurityNumber() { 19 | System.out.println("주민번호 입력: "); 20 | return sc.nextLine(); 21 | } 22 | } 23 | -------------------------------------------------------------------------------- /src/main/java/org/example/hr/ui/console/ConsoleOutputUI.java: -------------------------------------------------------------------------------- 1 | package org.example.hr.ui.console; 2 | 3 | import org.example.hr.service.dto.EmployeeCreatedResponse; 4 | 5 | public class ConsoleOutputUI { 6 | 7 | public static void printResult(EmployeeCreatedResponse response) { 8 | System.out.println("조회 결과: " + response); 9 | } 10 | } 11 | -------------------------------------------------------------------------------- /src/test/java/CorrectPasswordGenerator.java: -------------------------------------------------------------------------------- 1 | import org.example.PasswordGeneratePolicy; 2 | 3 | public class CorrectPasswordGenerator implements PasswordGeneratePolicy { 4 | @Override 5 | public String generatePassword() { 6 | return "aaaabbbbcc"; 7 | } 8 | } 9 | -------------------------------------------------------------------------------- /src/test/java/GradeCalculatorTest.java: -------------------------------------------------------------------------------- 1 | import org.example.grade.domain.Course; 2 | import org.example.grade.domain.Courses; 3 | import org.example.grade.domain.GradeCalculator; 4 | import org.example.grade.domain.GradeResult; 5 | import org.example.grade.ui.ConsoleOutputUI; 6 | import org.junit.jupiter.api.Test; 7 | 8 | import java.util.List; 9 | 10 | public class GradeCalculatorTest { 11 | // 학점계산기, 코스 12 | // 평균학점 계산 요청 ---> '학점계산기' ---> (학점수×교과목 평점)의 합계 ---> '코스' 13 | // ---> 수강신청 총학점 수 14 | @Test 15 | void calculateGradeTest() { 16 | // given 17 | List courses = List.of(new Course("OOP", Course.MAJOR_CREDIT, "A+"), 18 | new Course("자료구조", Course.MAJOR_CREDIT, "A+"), 19 | new Course("중국어회화", Course.GENERAL_CREDIT, "C")); 20 | 21 | // when 22 | GradeCalculator gradeCalculator = new GradeCalculator(new Courses(courses)); 23 | GradeResult gradeResult = gradeCalculator.calculateGrade(); 24 | 25 | // then 26 | ConsoleOutputUI.printGrade(gradeResult); 27 | } 28 | } 29 | -------------------------------------------------------------------------------- /src/test/java/PasswordValidatorTest.java: -------------------------------------------------------------------------------- 1 | import org.example.PasswordValidator; 2 | import org.junit.jupiter.api.DisplayName; 3 | import org.junit.jupiter.api.Test; 4 | import org.junit.jupiter.params.ParameterizedTest; 5 | import org.junit.jupiter.params.provider.ValueSource; 6 | 7 | import static org.assertj.core.api.Assertions.*; 8 | 9 | public class PasswordValidatorTest { 10 | 11 | /** 12 | * 비밀번호는 최소 8자 이상 12자 이하여야 한다. 13 | * 비밀번호가 8자 미만 또는 12자 초과인 경우 IllegalArgumentException 예외를 발생시킨다. 14 | * 경계조건에 대해 테스트 코드를 작성해야 한다. 15 | */ 16 | @DisplayName("비밀번호가 최소 8자 이상, 12자 이하면 예외가 발생하지 않는다.") 17 | @Test 18 | void validatePasswordTest() { 19 | // given 20 | String password = "serverwizard"; 21 | PasswordValidator passwordValidator = new PasswordValidator(); 22 | 23 | // when, then 24 | assertThatCode(() -> passwordValidator.validate(password)) 25 | .doesNotThrowAnyException(); 26 | } 27 | 28 | @DisplayName("비밀번호가 8자 미만 또는 12자 초과하는 경우 IllegalArgumentException 예외가 발생한다.") 29 | @ParameterizedTest 30 | @ValueSource(strings = {"aabbcce", "aabbccddeeffg"}) 31 | void validatePasswordTest2(String value) { 32 | // given 33 | PasswordValidator passwordValidator = new PasswordValidator(); 34 | 35 | // when, then 36 | assertThatCode(() -> passwordValidator.validate(value)) 37 | .isInstanceOf(IllegalArgumentException.class) 38 | .hasMessage("비밀번호는 최소 8자 이상 12자 이하여야 한다."); 39 | } 40 | 41 | /** 42 | * 테스트 하기 쉬운 코드를 작성하다 보면 더 낮은 결합도를 가진 설계를 얻을 수 있다. 43 | */ 44 | @DisplayName("비밀번호가 최소 8자 이상, 12자 이하면 예외가 발생하지 않는다.") 45 | @Test 46 | void validatePasswordTest2() { 47 | // given 48 | PasswordValidator passwordValidator = new PasswordValidator(); 49 | 50 | // when, then 51 | assertThatCode(() -> passwordValidator.validate2(new CorrectPasswordGenerator())) 52 | .doesNotThrowAnyException(); 53 | } 54 | 55 | 56 | @DisplayName("비밀번호가 8자 미만 또는 12자 초과하는 경우 IllegalArgumentException 예외가 발생한다.") 57 | @Test 58 | void validatePasswordTest3() { 59 | // given 60 | PasswordValidator passwordValidator = new PasswordValidator(); 61 | 62 | // when, then 63 | assertThatCode(() -> passwordValidator.validate2(new WrongPasswordGenerator())) 64 | .isInstanceOf(IllegalArgumentException.class) 65 | .hasMessage("비밀번호는 최소 8자 이상 12자 이하여야 한다."); 66 | } 67 | } 68 | -------------------------------------------------------------------------------- /src/test/java/WrongPasswordGenerator.java: -------------------------------------------------------------------------------- 1 | import org.example.PasswordGeneratePolicy; 2 | 3 | public class WrongPasswordGenerator implements PasswordGeneratePolicy { 4 | @Override 5 | public String generatePassword() { 6 | return "bb"; 7 | } 8 | } 9 | --------------------------------------------------------------------------------