diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..b63da455
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,42 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
\ No newline at end of file
diff --git a/.gradle/8.10/checksums/checksums.lock b/.gradle/8.10/checksums/checksums.lock
new file mode 100644
index 00000000..d4598fdc
Binary files /dev/null and b/.gradle/8.10/checksums/checksums.lock differ
diff --git a/.gradle/8.10/checksums/md5-checksums.bin b/.gradle/8.10/checksums/md5-checksums.bin
new file mode 100644
index 00000000..7f2ccadd
Binary files /dev/null and b/.gradle/8.10/checksums/md5-checksums.bin differ
diff --git a/.gradle/8.10/checksums/sha1-checksums.bin b/.gradle/8.10/checksums/sha1-checksums.bin
new file mode 100644
index 00000000..b7c21899
Binary files /dev/null and b/.gradle/8.10/checksums/sha1-checksums.bin differ
diff --git a/.gradle/8.10/dependencies-accessors/gc.properties b/.gradle/8.10/dependencies-accessors/gc.properties
new file mode 100644
index 00000000..e69de29b
diff --git a/.gradle/8.10/executionHistory/executionHistory.bin b/.gradle/8.10/executionHistory/executionHistory.bin
new file mode 100644
index 00000000..a611ca2f
Binary files /dev/null and b/.gradle/8.10/executionHistory/executionHistory.bin differ
diff --git a/.gradle/8.10/executionHistory/executionHistory.lock b/.gradle/8.10/executionHistory/executionHistory.lock
new file mode 100644
index 00000000..60995b4c
Binary files /dev/null and b/.gradle/8.10/executionHistory/executionHistory.lock differ
diff --git a/.gradle/8.10/fileChanges/last-build.bin b/.gradle/8.10/fileChanges/last-build.bin
new file mode 100644
index 00000000..f76dd238
Binary files /dev/null and b/.gradle/8.10/fileChanges/last-build.bin differ
diff --git a/.gradle/8.10/fileHashes/fileHashes.bin b/.gradle/8.10/fileHashes/fileHashes.bin
new file mode 100644
index 00000000..072a2a34
Binary files /dev/null and b/.gradle/8.10/fileHashes/fileHashes.bin differ
diff --git a/.gradle/8.10/fileHashes/fileHashes.lock b/.gradle/8.10/fileHashes/fileHashes.lock
new file mode 100644
index 00000000..ea7e6ee7
Binary files /dev/null and b/.gradle/8.10/fileHashes/fileHashes.lock differ
diff --git a/.gradle/8.10/gc.properties b/.gradle/8.10/gc.properties
new file mode 100644
index 00000000..e69de29b
diff --git a/.gradle/buildOutputCleanup/buildOutputCleanup.lock b/.gradle/buildOutputCleanup/buildOutputCleanup.lock
new file mode 100644
index 00000000..53ae623d
Binary files /dev/null and b/.gradle/buildOutputCleanup/buildOutputCleanup.lock differ
diff --git a/.gradle/buildOutputCleanup/cache.properties b/.gradle/buildOutputCleanup/cache.properties
new file mode 100644
index 00000000..abc1ff2a
--- /dev/null
+++ b/.gradle/buildOutputCleanup/cache.properties
@@ -0,0 +1,2 @@
+#Mon Apr 14 18:05:38 KST 2025
+gradle.version=8.10
diff --git a/.gradle/buildOutputCleanup/outputFiles.bin b/.gradle/buildOutputCleanup/outputFiles.bin
new file mode 100644
index 00000000..6b2ab068
Binary files /dev/null and b/.gradle/buildOutputCleanup/outputFiles.bin differ
diff --git a/.gradle/file-system.probe b/.gradle/file-system.probe
new file mode 100644
index 00000000..ec8534c8
Binary files /dev/null and b/.gradle/file-system.probe differ
diff --git a/.gradle/vcs-1/gc.properties b/.gradle/vcs-1/gc.properties
new file mode 100644
index 00000000..e69de29b
diff --git a/.idea/.name b/.idea/.name
new file mode 100644
index 00000000..77fd1730
--- /dev/null
+++ b/.idea/.name
@@ -0,0 +1 @@
+3-sprint-mission
\ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
new file mode 100644
index 00000000..f9163b40
--- /dev/null
+++ b/.idea/gradle.xml
@@ -0,0 +1,15 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 00000000..fe0b0dab
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,10 @@
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 00000000..35eb1ddf
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 00000000..668101a2
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,19 @@
+plugins {
+ id 'java'
+}
+
+group = 'com.sprint.mission'
+version = '1.0-SNAPSHOT'
+
+repositories {
+ mavenCentral()
+}
+
+dependencies {
+ testImplementation platform('org.junit:junit-bom:5.10.0')
+ testImplementation 'org.junit.jupiter:junit-jupiter'
+}
+
+test {
+ useJUnitPlatform()
+}
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..249e5832
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..af85458d
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Apr 14 18:05:24 KST 2025
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.10-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100644
index 00000000..1b6c7873
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,234 @@
+#!/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/master/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
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+ echo "$*"
+} >&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: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD=java
+ which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+ case $MAX_FD in #(
+ max*)
+ MAX_FD=$( ulimit -H -n ) ||
+ warn "Could not query maximum file descriptor limit"
+ esac
+ case $MAX_FD in #(
+ '' | soft) :;; #(
+ *)
+ ulimit -n "$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
+
+# Collect all arguments for the java command;
+# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+# shell script including quotes and variable substitutions, so put them in
+# double quotes to make sure that they get re-expanded; and
+# * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+ "-Dorg.gradle.appname=$APP_BASE_NAME" \
+ -classpath "$CLASSPATH" \
+ org.gradle.wrapper.GradleWrapperMain \
+ "$@"
+
+# 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/gradlew.bat b/gradlew.bat
new file mode 100644
index 00000000..107acd32
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,89 @@
+@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=.
+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%" == "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%"=="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!
+if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 00000000..79373e36
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1,2 @@
+rootProject.name = '3-sprint-mission'
+
diff --git a/src/main/java/com/sprint/mission/discodeit/JavaApplication.java b/src/main/java/com/sprint/mission/discodeit/JavaApplication.java
new file mode 100644
index 00000000..ac67e001
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/JavaApplication.java
@@ -0,0 +1,98 @@
+package com.sprint.mission.discodeit;
+
+import com.sprint.mission.discodeit.entity.Channel;
+import com.sprint.mission.discodeit.entity.User;
+import com.sprint.mission.discodeit.control.ChannelControl;
+import com.sprint.mission.discodeit.control.MessageControl;
+import com.sprint.mission.discodeit.control.UserControl;
+
+import java.util.InputMismatchException;
+import java.util.Scanner;
+
+public class JavaApplication {
+ public static final Scanner scanner = new Scanner(System.in);
+ public static User currentUser;
+ public static Channel currentChannel;
+
+ public static void main(String[] args) {
+ // 0. 초기 사용자 인증
+ currentUser = UserControl.verifyUser();
+ // 0_1. intro 메세지
+ System.out.println(" ▶ discodeit 메세지 서비스에 연결되었습니다.");
+ // 1. mainmenu 호출
+ menuMain();
+ //// <<메뉴 트리>>
+ //// 메인메뉴 ┬ 1. 채널입장 (채널상 메세지 관리) || 메서드 : control.menuMessageMng()
+ //// │ ├ 1_1 메세지 작성 ok
+ //// │ ├ 1_2 전체 메세지 조회 ok
+ //// │ ├ 1_3 단건 메세지 조회 ok
+ //// │ ├ 1_4 메세지 수정 ok
+ //// │ ├ 1_5 메세지 삭제 ok
+ //// │ └ 1_6 다른 채널에 접속 ok
+ //// │ └ 1_7 현재 사용자 변경 ok
+ //// │ └ 1_8 상위메뉴로 ok
+ //// ├ 2. 채널 관리(신규,수정,삭제) || 메서드 : control.menuChannelMng()
+ //// │ ├ 2_1 신규 채널 개설 ok
+ //// │ ├ 2_2 개별 채널 정보 상세조회 ok
+ //// │ ├ 2_3 개별 채널 이름,설명 변경 ok
+ //// │ └ 2_4 개별 채널 삭제 ok
+ //// │ └ 2_5 전체 채널 정보 상세조회 ok
+ //// │ └ 2_6 상위메뉴로 ok
+ //// ├ 3. 사용자 관리(신규,수정,삭제) || 메서드 : control.menuUserMng()
+ //// │ ├ 3_1 신규 사용자 추가 ok
+ //// │ ├ 3_2 현재 사용자 변경 ok
+ //// │ ├ 3_3 사용자 삭제 ok
+ //// │ └ 3_4 단일 사용자 상세 조회 ok
+ //// │ └ 3_5 전체 사용자 목록 조회 ok
+ //// │ └ 3_6 현재 사용자 변경 ok
+ //// │ └ 3_7 상위메뉴로 ok
+ //// └ 4. 프로그램 종료
+ }
+
+ // ▽▽▽main메서드에서 사용되는 내부 메서드
+ public static int scanInt(){ // 메뉴 선택시 int값 입력 필터링 메서드
+ System.out.print(" >> ");
+ int inputNum = -1;
+ try {
+ inputNum = scanner.nextInt();
+ scanner.nextLine(); // scanner 내부 개행문자 제거
+ } catch (InputMismatchException e){
+ System.out.println("숫자만 입력해 주세요");
+ scanner.nextLine(); // scanner 내부 개행문자 제거
+ }
+ return inputNum;
+}
+
+
+ public static void menuMain(){ // 메인 메뉴 call 메서드. 각 세부 메뉴로 접근하기 위함.
+ while (true) {
+ System.out.println(" ▶ 원하는 메뉴를 선택해 주세요.");
+ System.out.println("**********************************************\n"
+ + "[1] 채널 입장 및 메세지 관리\n"
+ + "[2] 채널 관리 (신규, 수정, 삭제, 조회)\n"
+ + "[3] 사용자 관리 (신규, 수정, 삭제, 조회)\n"
+ + "[4] 종료\n"
+ + "**********************************************\n");
+ int choice = scanInt(); // 숫자 입력 메서드 호출
+
+ switch (choice) {
+ case 1: // 채널 입장 : 메세지 관리 메서드 호출
+ currentChannel = ChannelControl.verifyChannel();
+ MessageControl.menuMessageMng(currentUser,currentChannel);
+ break;
+ case 2:
+ ChannelControl.menuChannelMng(currentUser);
+ break;
+ case 3: // 사용자 관리 : 사용자 관리 메서드 호출
+ UserControl.menuUserMng(currentUser);
+ break;
+ case 4:
+ System.out.println(" ▶ 프로그램을 종료합니다.");
+ break;
+ default:
+ System.out.println(" ▶ 잘못된 접근입니다. 다시 입력해 주세요");
+ }
+ if (choice == 4) {break;}
+ }
+ }
+}
diff --git a/src/main/java/com/sprint/mission/discodeit/control/ChannelControl.java b/src/main/java/com/sprint/mission/discodeit/control/ChannelControl.java
new file mode 100644
index 00000000..9a05b86c
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/control/ChannelControl.java
@@ -0,0 +1,155 @@
+package com.sprint.mission.discodeit.control;
+
+import com.sprint.mission.discodeit.JavaApplication;
+import com.sprint.mission.discodeit.entity.Channel;
+import com.sprint.mission.discodeit.entity.User;
+import com.sprint.mission.discodeit.jcf.JCFChannelService;
+
+public class ChannelControl extends JavaApplication {
+ private static final JCFChannelService channelService = new JCFChannelService();
+
+ public static Channel verifyChannel(){ // 채널입장시 Channel 신규개설 판별 메서드. 있으면 있는 채널에 참가 / 없으면 없는채널 생성
+ System.out.print(" ▶ 채널명을 입력해 주세요 : ");
+ String chanName = scanner.nextLine();
+ Channel channel = channelService.findChannelByName(chanName);
+ if (channel != null) {
+ System.out.println("[" + channel.getChannelName() + "] 에 접속합니다." + ", 채널 ID: " + channel.getId());
+ return channel;
+ } else {
+ System.out.println("\n ▶ 존재하지 않는 채널입니다. 새로운 채널을 개설합니다.");
+ System.out.println("\n ▶ 새로운 채널의 설명을 입력해주세요.");
+ String chanDesc = scanner.nextLine();
+ Channel newChannel = channelService.addChannel(chanName,chanDesc,currentUser);
+ System.out.println(" ▶ [" + newChannel.getChannelName() + "] 채널에 접속합니다." + " 채널 ID: " + newChannel.getId());
+ return newChannel;
+ }
+ }
+ public static void menuChannelMng(User currentUser){ // 2. 채널 관리 메서드
+ while (true) {
+ System.out.println(" *******************************************************\n"
+ + " || 채널 관리 메뉴입니다. 원하는 기능을 선택하세요. ||\n"
+ + " || 1 > 신규 채널 생성 ||\n"
+ + " || 2 > 개별 채널 정보 상세조회 ||\n"
+ + " || 3 > 개별 채널 이름,설명 변경 ||\n"
+ + " || 4 > 개별 채널 삭제 ||\n"
+ + " || 5 > 전체 채널 정보 상세조회 ||\n"
+ + " || 6 > 상위 메뉴로 돌아가기 ||\n"
+ + " *******************************************************\n");
+ int choice = scanInt(); // 숫자 입력 필터링 메서드 호출
+
+ switch (choice) {
+ case 1: // 2_1 신규 채널 생성, 채널설명 추가
+ System.out.println(" ▶ 새로운 채널을 개설합니다.");
+ while(true) {
+ System.out.print(" ▶ 채널명을 입력해 주세요 : ");
+ String chanName = scanner.nextLine();
+ Channel channel = channelService.findChannelByName(chanName);
+ if (channel == null) {
+ System.out.println("\n ▶ 새로운 채널의 설명을 입력해주세요.");
+ String chanDesc = scanner.nextLine();
+ Channel newChan = channelService.addChannel(chanName, chanDesc, currentUser);
+ System.out.println("\n ▶ "+newChan.getChannelName()+" 채널 생성에 성공하였습니다.");
+ break;
+ } else {System.out.println("\n ▶ 이미 존재하는 채널입니다. 다른 이름을 입력해주세요.");}
+ }
+ break;
+ case 2: // 2_2 채널 이름으로 검색하여 개별 채널 조회
+ System.out.println(" ▶ 조회할 채널의 이름을 입력해 주세요.");
+ System.out.print(" >> ");
+ String chnName = scanner.nextLine();
+ Channel toPrintChannel = channelService.findChannelByName(chnName);
+ if (toPrintChannel != null) {
+ System.out.println(toPrintChannel);
+ break;
+ }else{System.out.println("존재하지 않는 채널명입니다. 다시 입력해 주세요");
+ }
+ break;
+ case 3: // 2_3 채널 이름으로 검색하여 해당 채널 이름,설명 변경
+ while (true){
+ System.out.println("\n ▶ 채널 이름을 변경합니다. 현재 개설된 채널은 아래와 같습니다. \n");
+ channelService.printAllChannels();
+ while(true) {
+ String newName;
+ String newDesc;
+ System.out.println(" ▶ 변경할 채널의 이름을 선택해 주세요.");
+ System.out.print(" >> ");
+ String fndChnName = scanner.nextLine();
+ Channel toRenameChannel = channelService.findChannelByName(fndChnName);
+ if (toRenameChannel != null) {
+ System.out.println(" ▶ 선택하신 채널은 ["+toRenameChannel.getChannelName()+"] 입니다");
+ System.out.println(" ▶ 변경할 이름을 입력해 주세요.");
+ while(true) {
+ System.out.print(" >> ");
+ newName = scanner.nextLine();
+ if(channelService.findChannelByName(newName) == null){
+ if (newName.length() != 0) {
+ toRenameChannel.setChannelName(newName);
+ break;
+ } else {
+ System.out.println(" ▶ 잘못된 입력입니다. 다시 입력해 주세요.");
+ }
+ } else {
+ System.out.println(" ▶ 이미 존재하는 채널명입니다. 다시 입력해 주세요.");
+ }
+ }
+
+ System.out.println(" ▶ 변경할 채널의 설명을 입력해 주세요.");
+ while(true){
+ System.out.print(" >> ");
+ newDesc = scanner.nextLine();
+ if (newDesc.length() == 0) {
+ channelService.UpdateChannel(toRenameChannel,newName,"-");
+ System.out.println(" ▶ 채널 설명을 공백으로 설정했습니다.");
+ break;
+ }else{
+ channelService.UpdateChannel(toRenameChannel,newName,newDesc);
+ System.out.println(" ▶ 채널정보 수정에 성공했습니다.");
+ break;
+ }
+ }
+ break;
+ }else{System.out.println("존재하지 않는 채널명입니다. 다시 입력해 주세요");
+ }
+ }break;
+ }
+ break;
+ case 4: // 2_4 개별 채널 삭제
+ System.out.println(" ▶ 현재 개설된 채널은 아래와 같습니다.");
+ channelService.printAllChannels();
+ System.out.println(" ▶ 삭제할 채널의 이름을 입력해 주세요");
+
+ String fndChnName = scanner.nextLine();
+ Channel toDeleteChannel = channelService.findChannelByName(fndChnName);
+ if (toDeleteChannel != null) {
+ System.out.println(" ▶ 정말로 삭제할까요? 삭제를 원하시면 [삭제]라고 입력해 주세요.\n >> ");
+ String deleteConfirm = scanner.nextLine();
+ if (deleteConfirm.length() == 0) {
+ System.out.println(" ▶ 잘못된 입력입니다. 이전 메뉴로 돌아갑니다.");
+ break;
+ }else if(deleteConfirm.equals("삭제")) {
+ channelService.deleteChannel(toDeleteChannel);
+ System.out.println(" ▶ [" + fndChnName+ "]채널이 삭제되었습니다.");
+ }else{
+ System.out.println(" ▶ 잘못된 입력입니다. 채널 삭제를 취소합니다.");
+ }
+ } else {
+ System.out.println(" ▶ 잘못된 입력입니다. 채널 삭제를 취소합니다.");
+ }
+
+
+ break;
+ case 5: // 2_5 개별 채널 정보 상세조회
+ channelService.printAllChannels();
+ break;
+ case 6: // 2_6 상위메뉴 복귀
+ break;
+ default: // 세부메뉴 입력예외처리
+ System.out.println(" ▶ 잘못된 접근입니다. 다시 입력해 주세요");
+ }
+ if (choice == 6) {break;}
+ }
+
+
+ } // 2. 채널 관리 메서드
+
+}
diff --git a/src/main/java/com/sprint/mission/discodeit/control/MessageControl.java b/src/main/java/com/sprint/mission/discodeit/control/MessageControl.java
new file mode 100644
index 00000000..5f56b2ae
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/control/MessageControl.java
@@ -0,0 +1,132 @@
+package com.sprint.mission.discodeit.control;
+
+import com.sprint.mission.discodeit.JavaApplication;
+import com.sprint.mission.discodeit.entity.Channel;
+import com.sprint.mission.discodeit.entity.Message;
+import com.sprint.mission.discodeit.entity.User;
+import com.sprint.mission.discodeit.jcf.JCFUserService;
+
+import java.util.List;
+
+public class MessageControl extends JavaApplication {
+ private static final JCFUserService userService = new JCFUserService();
+ public static void menuMessageMng(User currentUser, Channel currentChannel){ // 1 메세지 관리 메서드
+ while (true) {
+ System.out.println(" *******************************************************\n"
+ + " || ["+currentChannel.getChannelName()+"] 채널에 입장했습니다.\n"
+ + " || 원하는 기능을 선택하세요. ||\n"
+ + " || 1 > 신규 메세지 작성 ||\n"
+ + " || 2 > 전체 메세지 조회 ||\n"
+ + " || 3 > 단건 메세지 조회 ||\n"
+ + " || 4 > 메세지 수정 ||\n"
+ + " || 5 > 메세지 삭제 ||\n"
+ + " || 6 > 다른 채널에 접속 ||\n"
+ + " || 7 > 현재 사용자 변경 ||\n"
+ + " || 8 > 상위 메뉴로 돌아가기 ||\n"
+ + " *******************************************************\n");
+ int choice = scanInt(); // 숫자 입력 필터링 메서드 호출
+ int inputMsgNum;
+ Message currentMsg;
+ List messages = currentChannel.messageService().getMessagesList();
+ switch (choice) {
+ case 1: // 1_1 메세지 작성
+ System.out.print(" ▶ 새로운 대화를 시작합니다.\n");
+ while (true){
+ int goNum;
+ if((messages.size()) < 5){goNum=0;}else{goNum = messages.size() - 5;}
+ System.out.println("번호 | 사용자명 : 메세지(생성일/수정일)");
+ for (int i = goNum ; i < messages.size(); i++) {
+ currentChannel.messageService().printOneMessage(i+1);
+ }
+
+ System.out.print(" >> ");
+ String txtMsg = scanner.nextLine();
+ if (txtMsg.length()!=0) {
+ currentChannel.messageService().uploadMsg(currentUser, txtMsg);
+ }else {
+ System.out.println(" ▶ 메세지 입력을 종료합니다");
+ break;
+ }
+ }
+ break;
+
+ case 2: //1_2 전체 메세지 조회
+ System.out.println(" ▶ 채널에 등록된 모든 메세지를 조회합니다.\n ");
+ currentChannel.messageService().printAllMessages();
+ break;
+ case 3: //1_3 단건 메세지 조회
+ System.out.println(" ▶ 조회할 메세지의 번호를 입력해 주세요");
+ inputMsgNum = scanInt(); // 숫자 입력 메서드 호출
+ if(inputMsgNum <= messages.size()) {
+ System.out.println(" ▶ [" + inputMsgNum + "]번 메세지는 아래와 같습니다.");
+ System.out.println("번호 | 사용자 : 메세지 ( 생성시각 / 수정시각 )");
+ currentChannel.messageService().printOneMessage(inputMsgNum);
+ break;}
+ System.out.println(" ▶ 잘못된 입력입니다. 상위메뉴로 돌아갑니다.");
+
+ break;
+ case 4: // 1_4 메세지 수정
+ System.out.println(" ▶ 현재 등록된 메세지는 아래와 같습니다.");
+ currentChannel.messageService().printAllMessages();
+ System.out.println(" ▶ 수정할 메세지의 번호를 입력해 주세요");
+ inputMsgNum = scanInt(); // 숫자 입력 메서드 호출
+ if(inputMsgNum <= messages.size()) {
+ currentMsg = currentChannel.messageService().findMessageByNum(inputMsgNum);
+ System.out.println(" ▶ [" + inputMsgNum + "]번 메세지는 아래와 같습니다.");
+ System.out.println(currentMsg.getTextMsg());
+
+ System.out.print("수정할 새로운 메세지를 입력해 주세요.\n >> ");
+ String newMessage = scanner.nextLine();
+ currentChannel.messageService().updateMsg(currentUser,currentMsg, newMessage);
+ System.out.println("기존 내용을 [" + currentMsg.getTextMsg() + "] 로 수정하였습니다.");
+ break;}
+ System.out.println(" ▶ 잘못된 입력입니다. 상위메뉴로 돌아갑니다.");
+ break;
+ case 5: // 1_5 메세지 삭제
+ System.out.println(" ▶ 현재 등록된 메세지는 아래와 같습니다.");
+ currentChannel.messageService().printAllMessages();
+ System.out.println(" ▶ 삭제할 메세지의 번호를 입력해 주세요");
+ inputMsgNum = scanInt(); // 숫자 입력 메서드 호출
+ currentMsg = currentChannel.messageService().findMessageByNum(inputMsgNum);
+ System.out.println(" ▶ [" + inputMsgNum + "]번 메세지는 아래와 같습니다.");
+ System.out.println(currentMsg.getTextMsg());
+
+ System.out.println(" ▶ 정말로 삭제할까요? 삭제를 원하시면 [삭제]라고 입력해 주세요.\n >> ");
+ String deleteConfirm = scanner.nextLine();
+ if (deleteConfirm.length() == 0) {
+ System.out.println(" ▶ 잘못된 입력입니다. 이전 메뉴로 돌아갑니다.");
+ break;
+ }else if(deleteConfirm.equals("삭제")) {
+ currentChannel.messageService().deleteMessage(currentUser,currentMsg);
+ System.out.println("메세지가 삭제되었습니다.");
+ }else{
+ System.out.println(" ▶ 잘못된 입력입니다. 사용자 삭제를 취소합니다.");
+ }
+ break;
+ case 6: // 1_6 현재 채널 변경
+ currentChannel = ChannelControl.verifyChannel();
+ break;
+ case 7: // 1_7 현재 사용자 변경
+ System.out.print(" ▶ 어떤 사용자로 로그인할까요?");
+ String username = scanner.nextLine();
+ User user = userService.findUserByName(username);
+ if (user != null) {
+ System.out.println("[" + user.getName() + "] 사용자로 진행합니다." + ", ID: " + user.getId());
+ currentUser = user;
+ } else {
+ System.out.println("\n ▶ 존재하지 않는 사용자입니다. 기존 사용자[" + currentUser.getName() + "]로 진행합니다.\n 현재 사용가능한 사용자는 아래와 같습니다.");
+ userService.getUserslist().forEach(u -> System.out.print(u.getName()+ " , "));
+ System.out.println();
+ }
+ break;
+ case 8: // 1_8 상위메뉴로 이동
+ break;
+ default: // 세부메뉴 입력예외처리
+ System.out.println(" ▶ 잘못된 접근입니다. 다시 입력해 주세요");
+ }
+ if (choice == 8) {break;}
+ }
+
+
+ } // 1 메세지 관리 메서드
+}
diff --git a/src/main/java/com/sprint/mission/discodeit/control/UserControl.java b/src/main/java/com/sprint/mission/discodeit/control/UserControl.java
new file mode 100644
index 00000000..2bedad50
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/control/UserControl.java
@@ -0,0 +1,164 @@
+package com.sprint.mission.discodeit.control;
+
+import com.sprint.mission.discodeit.JavaApplication;
+import com.sprint.mission.discodeit.entity.User;
+import com.sprint.mission.discodeit.jcf.JCFUserService;
+
+import java.util.InputMismatchException;
+
+public class UserControl extends JavaApplication {
+ private static final JCFUserService userService = new JCFUserService();
+ // 어플리케이션 최초 실행시 User 신규여부 판별 메서드. 있으면 있는 유저로 로그인 / 없으면 새 유저 생성
+ public static User verifyUser(){ // 사용자명 입력 >> 없는 사용자 : 사용자 생성 / 있는 사용자 : 이름으로 확인, ID연결
+ System.out.print(" ▶ 사용자명을 입력해 주세요 : ");
+ String username = scanner.nextLine();
+ User user = userService.findUserByName(username);
+ if (user != null) {
+ System.out.println("[" + user.getName() + "] 님 환영합니다." + ", ID: " + user.getId());
+ return user;
+ } else {
+ System.out.println("\n ▶ 존재하지 않는 사용자입니다. 신규 사용자로 등록합니다.");
+ User newUser = userService.createUser(username);
+ System.out.println("\n ▶ 환영합니다 [" + newUser.getName() + "] 님, 새로운 ID가 발급되였습니다.\n 신규 사용자 UUID : " + newUser.getId());
+ return newUser;
+ }
+ }
+ // 1_3 사용자 관리 세부메뉴 메서드
+ public static void menuUserMng(User currentUser){ // 1_4 사용자 관리 내부메뉴 메서드
+ while (true) {
+ System.out.println(" *******************************************************\n"
+ + " || 사용자 관리 메뉴입니다. 원하는 기능을 선택하세요. ||\n"
+ + " || 1 > 신규 사용자 생성 ||\n"
+ + " || 2 > 현재 사용자 이름 변경 ||\n"
+ + " || 3 > 사용자 삭제 ||\n"
+ + " || 4 > 단일 사용자 상세조회 ||\n"
+ + " || 5 > 전체 사용자 상세조회 ||\n"
+ + " || 6 > 다른 사용자로 진행 ||\n"
+ + " || 7 > 상위 메뉴로 돌아가기 ||\n"
+ + " *******************************************************\n");
+ System.out.print(" >> ");
+ int choice = -1;
+ try {
+ choice = scanner.nextInt();
+ scanner.nextLine(); // scanner 내부 개행문자 제거
+ } catch (InputMismatchException e){
+ System.out.println("숫자만 입력해 주세요");
+ scanner.nextLine(); // scanner 내부 개행문자 제거
+ }
+
+ switch (choice) {
+ case 1: // 1_4_1 신규 사용자 생성 메뉴
+ System.out.println(" ▶ 새로운 사용자를 생성합니다.");
+ while (true) {
+ System.out.print(" ▶ 원하는 사용자명을 입력해 주세요 : ");
+ String username = scanner.nextLine();
+ if (username.length() == 0) { // 입력값이 없는경우 상위 메뉴로 이동
+ System.out.println(" ▶ 입력값이 없습니다. 사용자 생성을 취소합니다.\n");
+ break;}
+ User user = userService.findUserByName(username);
+ if (user == null) { // 중복 유저명 체크하여 중복유저가 없는경우 사용자 생성
+ User newUser = userService.createUser(username);
+ System.out.println(" ▶ 사용자 생성에 성공했습니다.");
+ System.out.println(" ▶ 사용자명 : " + newUser.getName() + " SSID : " + newUser.getId() + "\n");
+
+ // 새로 생성한 사용자로 currentUser 변경여부 체크
+ System.out.println(" ▶ 새로운 사용자로 로그인하시겠습니까? Y/N");
+ String newUserChange = scanner.nextLine();
+ if (newUserChange.equals("y") || newUserChange.equals("Y")) {
+ currentUser = newUser;
+ System.out.println("\n ▶ [" + currentUser.getName() + "] 사용자로 로그인 했습니다.");
+ }
+
+ System.out.println(" ▶ 기존 사용자 [" + currentUser.getName() + "]로 계속합니다.");
+ break;
+ } else { // user.name 중복값 확인시 while문 재시작
+ System.out.println(" ▶ 이미 존재하는 사용자명입니다. 다른 이름을 입력해 주세요.\n");
+ }
+ }
+ break;
+
+ case 2:
+ while (true){ // 1_4_2 사용자 이름 변경 메뉴
+ System.out.println("\n ▶ 사용자 이름을 변경합니다. * 현재 사용자 이름 : [" + currentUser.getName() + "]");
+ System.out.println(" ▶ 변경할 사용자 이름을 입력해 주세요");
+ System.out.print(" >> ");
+ String newName = scanner.nextLine();
+ if(newName.length() ==0) {// 사용자 이름 입력값이 없는경우 상위메뉴로 이동
+ System.out.println(" ▶ 새 이름을 입력하지 않았습니다. 사용자 이름 변경을 취소합니다.");
+ break;}
+ User user = userService.findUserByName(newName);
+ if(user != null){ // 중복값 존재시 재입력
+ System.out.print(" ▶ 이미 존재하는 이름입니다. 다시 입력해 주세요.\n >>> ");
+ } else{ // 중복값 미확인시 유저명 변경
+ userService.updateUserName(currentUser, newName);
+ break;
+ }
+ }
+ break;
+ case 3: // 1_4_3 사용자 삭제 메뉴
+ System.out.println(" ▶ 삭제할 사용자의 이름을 입력해 주세요");
+ System.out.println(" ▶ 현재 등록된 사용자는 아래와 같습니다.");
+ userService.printAllUsers();
+ System.out.print(" >> ");
+ String deleteUser = scanner.nextLine();
+ if ((deleteUser.length() == 0) || (userService.findUserByName(deleteUser) == null)) {
+ System.out.println(" ▶ 존재하지 않는 사용자이거나 잘못된 입력입니다. 이전 메뉴로 돌아갑니다.");
+ } else if (deleteUser.equals(currentUser.getName())){
+ System.out.println(" ▶ 현재 로그인된 사용자는 삭제할 수 없습니다! 이전 메뉴로 돌아갑니다.");
+ break;
+ } else {
+ System.out.println(" ▶ 입력하신 사용자는 아래와 같습니다.");
+ User userToDel = userService.findUserByName(deleteUser);
+ System.out.println(userToDel);
+ System.out.println(" ▶ 정말로 삭제할까요? 삭제를 원하시면 [삭제]라고 입력해 주세요");
+ System.out.print(" >> ");
+ String deleteConfirm = scanner.nextLine();
+ if (deleteConfirm.length() == 0) {
+ System.out.println(" ▶ 잘못된 입력입니다. 이전 메뉴로 돌아갑니다.");
+ break;
+ }else if(deleteConfirm.equals("삭제")) {
+ userService.deleteUser(deleteUser);
+ System.out.println("[" + deleteUser + "] 사용자가 삭제되었습니다.");
+ }else{
+ System.out.println(" ▶ 잘못된 입력입니다. 사용자 삭제를 취소합니다.");
+ }
+ }
+ break;
+ case 4: // 1_4_4 단일 사용자 정보 출력 메뉴
+ System.out.print(" ▶ 조회할 사용자의 이름을 입력해 주세요.\n >> ");
+ String oneUser = scanner.nextLine();
+ if ((oneUser.length() == 0) || (userService.findUserByName(oneUser) == null)) {
+ System.out.println(" ▶ 존재하지 않는 사용자이거나 잘못된 입력입니다. 이전 메뉴로 돌아갑니다.");
+ } else {
+ System.out.println(" ▶ 입력하신 사용자는 아래와 같습니다.");
+ User userToRead = userService.findUserByName(oneUser);
+ System.out.println(userToRead);
+ }
+ break;
+ case 5: // 1_4_5 모든 사용자 정보 출력 메뉴
+ System.out.println(" ▶ 모든 사용자 정보를 출력합니다.");
+ userService.printAllUsers();
+ break;
+ case 6: // 1_4_6 다른 사용자로 진행
+ System.out.print(" ▶ 어떤 사용자로 로그인할까요?");
+ String username = scanner.nextLine();
+ User user = userService.findUserByName(username);
+ if (user != null) {
+ System.out.println("[" + user.getName() + "] 사용자로 진행합니다." + ", ID: " + user.getId());
+ currentUser = user;
+ } else {
+ System.out.println("\n ▶ 존재하지 않는 사용자입니다. 기존 사용자[" + currentUser.getName() + "]로 진행합니다.\n 현재 사용가능한 사용자는 아래와 같습니다.");
+ userService.getUserslist().forEach(u -> System.out.print(u.getName()+ " , "));
+ System.out.println();
+ }
+ break;
+ case 7: // 1_4_7 상위메뉴 복귀
+ break;
+ default: // 1_4 세부메뉴 입력예외처리
+ System.out.println(" ▶ 잘못된 접근입니다. 다시 입력해 주세요");
+ }
+ if (choice == 7) {break;}
+ }
+ } // 1_3 사용자 관리 세부메뉴 메서드
+
+}
diff --git a/src/main/java/com/sprint/mission/discodeit/entity/Channel.java b/src/main/java/com/sprint/mission/discodeit/entity/Channel.java
new file mode 100644
index 00000000..7bce68ed
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/entity/Channel.java
@@ -0,0 +1,59 @@
+package com.sprint.mission.discodeit.entity;
+
+import com.sprint.mission.discodeit.jcf.JCFMessageService;
+
+import java.text.SimpleDateFormat;
+import java.util.UUID;
+
+
+public class Channel {
+ private final UUID id = UUID.randomUUID();
+ private long createdAt = System.currentTimeMillis();
+ private long updatedAt;
+ private String channelName;
+ private String channelDescription;
+ private String channelCreater;
+
+ private JCFMessageService messageService;
+
+
+ public Channel(String channelName, String channelDescription, String channelCreater, long createdAt, long updatedAt) {
+ this.channelName = channelName;
+ this.channelDescription = channelDescription;
+ this.channelCreater = channelCreater;
+ this.createdAt = createdAt;
+ this.updatedAt = updatedAt;
+ this.messageService = new JCFMessageService();
+ }
+
+ public UUID getId() {return id;}
+ public String getCreatedAt() {
+ String formatedTime = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(createdAt);
+ return formatedTime;}
+
+ public String getUpdatedAt() {
+ String formatedTime = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(updatedAt);
+ return formatedTime;}
+ public void setUpdatedAt(long updatedAt) {this.updatedAt = updatedAt;}
+
+ public String getChannelName() {return channelName;}
+ public void setChannelName(String channelName) {this.channelName = channelName;}
+
+ public String getChannelDescription() {return channelDescription;}
+ public void setChannelDescription(String channelDescription) {this.channelDescription = channelDescription;}
+
+ public String getChannelCreater() {return channelCreater;}
+
+ public JCFMessageService messageService() {return messageService;}
+ @Override
+ public String toString() {
+ String result;
+ if(getCreatedAt().equals(getUpdatedAt())){
+ result = "채널명 : " + channelName + " 개설자 : " + channelCreater + " 채널설명 : " + channelDescription + " 개설일자 : " + getCreatedAt() + " UUID : " + getId();
+ } else {
+ result = "채널명 : " + channelName + " 개설자 : " + channelCreater + " 채널설명 : " + channelDescription + " 개설일자 : " + getCreatedAt() + " 수정일자 : " + getUpdatedAt() + " UUID : " + getId();
+ }
+ return result;
+ }
+}
+
diff --git a/src/main/java/com/sprint/mission/discodeit/entity/Message.java b/src/main/java/com/sprint/mission/discodeit/entity/Message.java
new file mode 100644
index 00000000..6fc6e858
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/entity/Message.java
@@ -0,0 +1,50 @@
+package com.sprint.mission.discodeit.entity;
+
+import java.text.SimpleDateFormat;
+import java.util.UUID;
+
+public class Message {
+ private final UUID id = UUID.randomUUID();
+ private long createdAt = System.currentTimeMillis();
+ private long updatedAt;
+
+ private int msgNumber;
+
+ private String author;
+ private String textMsg;
+
+
+ public Message(int msgNumber, String author, String textMsg,long createdAt, long updatedAt) {
+ this.msgNumber = msgNumber;
+ this.author = author;
+ this.textMsg = textMsg;
+ this.createdAt = createdAt;
+ this.updatedAt = updatedAt;
+ }
+ public UUID getId() {return id;}
+ public int getMsgNumber() {return msgNumber;}
+ public String getAuthor() {return author;}
+ public void setAuthor(String newAuthor) {this.author = newAuthor;}
+ public void setTextMsg(String textMsg) {this.textMsg = textMsg;}
+ public String getTextMsg() {return textMsg;}
+
+ public String getCreatedAt() {
+ String formatedTime = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(createdAt);
+ return formatedTime;}
+ public String getUpdatedAt() {
+ String formatedTime = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(updatedAt);
+ return formatedTime;}
+ public void setUpdatedAt(long updatedAt) {
+ this.updatedAt = updatedAt;}
+ @Override
+ public String toString() {
+ String result;
+ if(getCreatedAt().equals(getUpdatedAt())){
+ result = msgNumber + " | " + author + " : " + textMsg + " (" + getCreatedAt() + ") : " + getId();
+ } else {
+ result = msgNumber + " | " + author + " : " + textMsg + " (" + getCreatedAt() + " / " + getUpdatedAt() + ") : " + getId();
+ }
+ return result;
+ }
+}
+
diff --git a/src/main/java/com/sprint/mission/discodeit/entity/User.java b/src/main/java/com/sprint/mission/discodeit/entity/User.java
new file mode 100644
index 00000000..d6d6bcf8
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/entity/User.java
@@ -0,0 +1,43 @@
+package com.sprint.mission.discodeit.entity;
+
+import java.text.SimpleDateFormat;
+import java.util.UUID;
+
+public class User {
+ private final UUID id = UUID.randomUUID();
+ private long createdAt = System.currentTimeMillis();
+ private long updatedAt;
+ private String name;
+
+ public User(String name, long createdAt, long updatedAt) {
+ this.name = name;
+ this.createdAt = createdAt;
+ this.updatedAt = updatedAt;
+ }
+
+ public UUID getId() {return id;}
+ public String getName() {return name;}
+ public void setName(String name) {this.name = name;}
+
+ public String getCreatedAt() {
+ String formatedTime = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(createdAt);
+ return formatedTime;}
+ public String getUpdatedAt() {
+ String aformatedTime = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(updatedAt);
+ return aformatedTime;}
+ public void setUpdatedAt(long updatedAt) {this.updatedAt = updatedAt;}
+
+@Override
+public String toString() {
+ String result;
+ if(getCreatedAt().equals(getUpdatedAt())){
+ result = "\n 사용자 이름 : " + name + "\n 생성일 : " + getCreatedAt() + "\n 사용자 UUID : " + id + "\n";
+ } else {
+ result = "\n 사용자 이름 : " + name + "\n 생성일 : " + getCreatedAt() + "\n 수정일 : " + getUpdatedAt() + "\n 사용자 UUID : " + id + "\n";
+ }
+ return result;
+ }
+
+
+
+}
diff --git a/src/main/java/com/sprint/mission/discodeit/jcf/JCFChannelService.java b/src/main/java/com/sprint/mission/discodeit/jcf/JCFChannelService.java
new file mode 100644
index 00000000..d731f9cc
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/jcf/JCFChannelService.java
@@ -0,0 +1,65 @@
+package com.sprint.mission.discodeit.jcf;
+
+import com.sprint.mission.discodeit.entity.Channel;
+import com.sprint.mission.discodeit.entity.User;
+import com.sprint.mission.discodeit.service.ChannelService;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class JCFChannelService implements ChannelService {
+ // 초기 채널 입력
+ private final List channels = new ArrayList<>();
+ public JCFChannelService(){
+ channels.add(new Channel("ch01","default Channel","관리자",1744036548250L,1744036548250L));
+
+ }
+ // 채널 생성 메서드
+ @Override
+ public Channel addChannel(String channelName, String channelDesc, User user){
+ long now = System.currentTimeMillis();
+ Channel channel = new Channel(channelName,channelDesc,user.getName(),now,now);
+ channels.add(channel);
+ System.out.print("\n ▶ [새로운 채널 생성완료]");
+ System.out.println(" ▶ 채널명 : " + channel.getChannelName() + " ▶ 생성시간 : " + channel.getCreatedAt());
+ return channel;
+ };
+ // 채널 수정 메서드
+ @Override
+ public void UpdateChannel(Channel channel, String channelName, String channelDescription){
+ long now = System.currentTimeMillis();
+ channel.setChannelName(channelName);
+ channel.setChannelDescription(channelDescription);
+ channel.setUpdatedAt(now);
+ System.out.print("\n ▶ [채널 정보 수정 완료]");
+ System.out.println(channel);
+ };
+ // 채널 삭제 메서드
+ @Override
+ public void deleteChannel(Channel channel){
+ channels.remove(channel);
+ };
+ // 전체채널목록 출력 메서드
+ @Override
+ public void printAllChannels(){
+ System.out.println("<< 생성된 전체 채널 >>");
+ System.out.println("채널명 | 개설자 | 채널설명(개설시간)");
+ channels.forEach(chan -> System.out.println(chan.getChannelName()+" | "+chan.getChannelCreater()+" | "+chan.getChannelDescription()+" ("+chan.getCreatedAt() + ")"));
+ System.out.println("");
+ }
+
+ @Override
+ public List getAllChannels() {
+ return List.of();
+ }
+
+ @Override // 이름으로 채널 검색 메서드. 채널객체를 return
+ public Channel findChannelByName(String name){
+ for (Channel channel : channels) {
+ if (channel.getChannelName().equals(name)) {
+ return channel; // 일치하는 name 발견시 channel 객체를 리턴
+ }
+ }
+ return null; // 없으면 null
+ }
+}
diff --git a/src/main/java/com/sprint/mission/discodeit/jcf/JCFMessageService.java b/src/main/java/com/sprint/mission/discodeit/jcf/JCFMessageService.java
new file mode 100644
index 00000000..c9013ad9
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/jcf/JCFMessageService.java
@@ -0,0 +1,60 @@
+package com.sprint.mission.discodeit.jcf;
+
+import com.sprint.mission.discodeit.entity.Message;
+import com.sprint.mission.discodeit.entity.User;
+import com.sprint.mission.discodeit.service.MessageService;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class JCFMessageService implements MessageService {
+ private final List messages = new ArrayList<>();
+ // 테스트용 초기 더미 데이터 입력
+ public JCFMessageService() {
+ messages.add(new Message(001,"희동이","더미 데이터 1 요리보고 조리봐도", 1744036548250L , 1744036548250L));
+ messages.add(new Message(002,"희동이","더미 데이터 2 알수없는 둘리둘리", 1744036558250L , 1744036558250L));
+ messages.add(new Message(003,"도우너","더미 데이터 3 빙하타고~내려와아", 1744036938250L , 1744036938250L));
+ messages.add(new Message(004,"고길동","더미 데이터 4 치인구를 만났지만", 1744036938250L , 1744036938250L));
+ }
+ @Override
+ public void uploadMsg(User user,String txtMsg){
+ long now = System.currentTimeMillis();
+ Message message = new Message(messages.size() + 1,user.getName(),txtMsg,now,now);
+ messages.add(message);
+ }
+
+ @Override
+ public void updateMsg(User user, Message message,String newMsg) {
+ String resetColor = "\u001B[0m";
+ String setColorYellow = "\u001B[33m";
+ message.setTextMsg(newMsg + setColorYellow + " *** [" + user.getName() + "] 에 의해 수정됨" + resetColor);
+ message.setUpdatedAt(System.currentTimeMillis());
+ }
+
+ public void deleteMessage(User user, Message message){
+ String resetColor = "\u001B[0m";
+ String setColorRed = "\u001B[31m";
+ message.setTextMsg(setColorRed + " - ////// " + user.getName() + " 사용자에 의해 삭제됨 ////// -" +message.getUpdatedAt() + resetColor);
+ message.setUpdatedAt(System.currentTimeMillis());
+ }
+ public Message findMessageByNum(int num){
+ for (Message message : messages) {
+ if (message.getMsgNumber() == num) {
+ return message; // 일치하는 메세지 번호 발견시 message 리턴
+ }
+ }return null;
+ }
+ public void printAllMessages() {
+ System.out.println("<< 입력된 전체 메세지 >>");
+ System.out.println("번호 | 사용자 : 메세지");
+ messages.forEach(m -> System.out.printf("%4d | %-10s: %s \n 생성일 : %s 수정일 : %s UUID : %s\n",m.getMsgNumber(),m.getAuthor(),m.getTextMsg(),m.getCreatedAt(),m.getUpdatedAt(),m.getId()));
+ System.out.println();
+ }
+ public void printOneMessage(int msgNum){
+ Message message = findMessageByNum(msgNum);
+ System.out.printf("%4d | %-10s: %s \n 생성일 : %s 수정일 : %s UUID : %s\n", message.getMsgNumber(),message.getAuthor(),message.getTextMsg(),message.getCreatedAt(),message.getUpdatedAt(),message.getId() );
+ }
+ public List getMessagesList() {
+ return messages;
+ }
+}
diff --git a/src/main/java/com/sprint/mission/discodeit/jcf/JCFUserService.java b/src/main/java/com/sprint/mission/discodeit/jcf/JCFUserService.java
new file mode 100644
index 00000000..46b50eab
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/jcf/JCFUserService.java
@@ -0,0 +1,74 @@
+package com.sprint.mission.discodeit.jcf;
+
+import com.sprint.mission.discodeit.entity.User;
+import com.sprint.mission.discodeit.service.UserService;
+
+import java.util.*;
+
+public class JCFUserService implements UserService {
+ private final List users = new ArrayList<>();
+ // 테스트용 초기 더미 데이터 입력
+ public JCFUserService() {
+ users.add(new User("희동이" , 1744036538250L , 1744036538250L));
+ users.add(new User("고길동" , 1744036738250L , 1744071238250L));
+ users.add(new User("도우너" , 1744036938250L , 1744036538250L));
+ }
+
+ @Override // 유저 생성 메서드 createUser()
+ public User createUser(String name) {
+ long now = System.currentTimeMillis();
+ User user = new User(name, now, now);
+ users.add(user);
+ System.out.println("사용자의 이름을 [" + user.getName() + "] 으로 생성하였습니다. | " + user.getCreatedAt());
+ return user;
+ }
+
+ @Override //유저 이름 변경 메서드 updateUserName()
+ public void updateUserName(User user, String newName) {
+ String oldName = user.getName();
+ user.setName(newName);
+ user.setUpdatedAt(System.currentTimeMillis());
+ System.out.println("[" + oldName + "] 사용자의 이름을 [" + user.getName() + "] 으로 변경하였습니다. | " + user.getUpdatedAt());
+ }
+
+ @Override
+ public boolean deleteUser(UUID id) {
+ return users.removeIf(user -> user.getId().equals(id));
+ }
+
+ @Override
+ public boolean deleteUser(String name) {
+ return users.removeIf(user -> user.getName().equals(name));
+ }
+
+ @Override
+ public User findUserById(UUID id) {
+ for (User user : users) {
+ if (user.getId().equals(id)) {
+ return user; // 일치하는 ID 발견시 user 리턴
+ }
+ }
+ return null; // 없으면 null 리턴
+ }
+
+ @Override
+ public User findUserByName(String name) {
+ for (User user : users) {
+ if (user.getName().equals(name)) {
+ return user; // 일치하는 name 발견시 user 리턴
+ }
+ }
+ return null; // 없으면 null 리턴
+ }
+
+ // 유틸 메서드: 모든 사용자 출력
+ public void printAllUsers(){
+ System.out.println(" □ □ □ 전체 사용자 목록 □ □ □ \n 사용자이름 | 사용자생성시간 | 사용자정보 수정시간 | 사용자UUID");
+ users.forEach(u -> System.out.println(" " + u.getName() + " | " + u.getCreatedAt() + " | " + u.getUpdatedAt() + " | " + u.getId()));
+ System.out.println();
+ }
+ public List getUserslist() {
+ return users;
+ }
+
+}
\ No newline at end of file
diff --git a/src/main/java/com/sprint/mission/discodeit/service/ChannelService.java b/src/main/java/com/sprint/mission/discodeit/service/ChannelService.java
new file mode 100644
index 00000000..2ac81252
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/service/ChannelService.java
@@ -0,0 +1,17 @@
+package com.sprint.mission.discodeit.service;
+
+import com.sprint.mission.discodeit.entity.Channel;
+import com.sprint.mission.discodeit.entity.User;
+
+import java.util.List;
+
+public interface ChannelService {
+ Channel addChannel(String channelName, String channelDesc, User user);
+ void UpdateChannel(Channel channel, String channelName, String channelDescription);
+ void deleteChannel(Channel channel);
+
+ void printAllChannels();
+ List getAllChannels();
+
+ Channel findChannelByName(String name);
+}
diff --git a/src/main/java/com/sprint/mission/discodeit/service/MessageService.java b/src/main/java/com/sprint/mission/discodeit/service/MessageService.java
new file mode 100644
index 00000000..9ef7819e
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/service/MessageService.java
@@ -0,0 +1,19 @@
+package com.sprint.mission.discodeit.service;
+
+
+import com.sprint.mission.discodeit.entity.Message;
+import com.sprint.mission.discodeit.entity.User;
+
+import java.util.*;
+
+public interface MessageService{
+ void uploadMsg(User user,String txtMsg);
+ void updateMsg(User user, Message message,String Msg);
+ Message findMessageByNum(int num);
+
+ void deleteMessage(User user, Message message);
+
+ void printAllMessages();
+ void printOneMessage(int msgNum);
+ List getMessagesList(); // 사용자 전체 조회
+}
diff --git a/src/main/java/com/sprint/mission/discodeit/service/UserService.java b/src/main/java/com/sprint/mission/discodeit/service/UserService.java
new file mode 100644
index 00000000..aca9a860
--- /dev/null
+++ b/src/main/java/com/sprint/mission/discodeit/service/UserService.java
@@ -0,0 +1,20 @@
+package com.sprint.mission.discodeit.service;
+
+import com.sprint.mission.discodeit.entity.User;
+
+import java.util.List;
+import java.util.UUID;
+
+public interface UserService {
+
+ User createUser(String name); // 새로운 유저 생성
+ void updateUserName(User user,String name); // 기존 유저 수정
+ void printAllUsers();
+ List getUserslist(); // 유저 리스트 반환
+
+ User findUserById(UUID id); // ID로 단일유저 찾기
+ User findUserByName(String name); // 이름으로 단일유저 찾기
+ boolean deleteUser(UUID id); // ID로 유저 삭제
+ boolean deleteUser(String name); // 이름으로 유저 삭제
+
+}