write account

.gitattributes

@@ -0,0 +1,12 @@
+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# Linux start script should use lf
+/gradlew        text eol=lf
+
+# These are Windows script files and should use crlf
+*.bat           text eol=crlf
+
+# Binary files should be left untouched
+*.jar           binary
+

.gitignore

@@ -0,0 +1,5 @@
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build

build.gradle

@@ -0,0 +1,31 @@
+/*
+ * This file was generated by the Gradle 'init' task.
+ *
+ * This is a general purpose Gradle build.
+ * Learn more about Gradle by exploring our Samples at https://docs.gradle.org/8.14.3/samples
+ * This project uses @Incubating APIs which are subject to change.
+ */
+
+plugins {
+  id 'java'
+  id 'application' 
+}
+
+sourceCompatibility = JavaVersion.VERSION_21
+targetCompatibility = JavaVersion.VERSION_21
+
+application {
+    mainClass = 'lodge.reservationsytem.TestReservations'
+}
+
+sourceSets {
+  main {
+    java { 
+      srcDirs = ['src/java']
+    }
+  }
+}
+
+dependencies {
+  implementation( files('libs/com.google.code.gson:2.13.1') )
+}

gradle.properties

@@ -0,0 +1,7 @@
+# This file was generated by the Gradle 'init' task.
+# https://docs.gradle.org/current/userguide/build_environment.html#sec:gradle_configuration_properties
+
+org.gradle.configuration-cache=true
+org.gradle.parallel=true
+org.gradle.caching=true
+

gradle/libs.versions.toml

@@ -0,0 +1,2 @@
+# This file was generated by the Gradle 'init' task.
+# https://docs.gradle.org/current/userguide/platforms.html#sub::toml-dependencies-format

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,251 @@
+#!/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.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH="\\\"\\\""
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,94 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1,9 @@
+/*
+ * This file was generated by the Gradle 'init' task.
+ *
+ * The settings file is used to specify which projects to include in your build.
+ * For more detailed information on multi-project builds, please refer to https://docs.gradle.org/8.14.3/userguide/multi_project_builds.html in the Gradle documentation.
+ * This project uses @Incubating APIs which are subject to change.
+ */
+
+rootProject.name = "reservationsystem"

src/java/lodge/TestReservations.java

@@ -0,0 +1,80 @@
+package lodge;
+
+import java.net.URI;
+
+import lodge.reservationsystem.AccomodationManager;
+import lodge.reservationsystem.Account;
+import lodge.reservationsystem.Address;
+import lodge.reservationsystem.DataRepository;
+import lodge.reservationsystem.EmailAddress;
+
+public final class TestReservations {
+        public static void main(String[] args) throws Exception {
+
+                AccomodationManager mgr = new AccomodationManager();
+                String home = System.getenv("HOMEDRIVE")+System.getenv("HOMEPATH");
+                home= home.replace("\\", "/") + "/data";
+                DataRepository.setDataStoreRoot(home);
+
+                // 1. Get the list of loaded accounts from Manager
+
+                mgr.loadAll();
+
+                // 2. Retrieve a loaded account object that matches a specific account number
+
+                mgr.retrieveAccount("A######");
+
+                // 3. Add new account object to the list managed by Manager (if account object
+                // already exists on add action with the same account number, it is considered
+                // an error)
+
+                Account acct = mgr.newAccount("767-456-7890", 
+                new Address("10 wilco ave", "wilco", "WY", "82801"), 
+                new EmailAddress("wilco@wyommin.net"));
+
+                // 4. Request that Manager updates specific account’s files with data stored in
+                // memory
+                mgr.AddAccount(acct);
+                // 5. Add draft lodging reservation to an account (if reservation object already
+                // exists with the same reservation number, it is considered an error)
+
+                mgr.UpdateAccount(mgr.retrieveAccount(acct.account_number()));
+
+                /*
+                 * if (acct != null)
+                 * acct.addReservation(new HotelReservation());
+                 * 
+                 * // 6. Complete reservation that is associated with an account
+                 * Reservation rsrv = null;
+                 * acct = null;
+                 * acct = mgr.retrieveAccount("A######");
+                 * if (acct != null) {
+                 * rsrv = acct.retrieve("?######");
+                 * rsrv.Complete();
+                 * }
+                 * 
+                 * // 7. Cancel reservation that is associated with an account
+                 * if (acct != null) {
+                 * rsrv = acct.retrieve("?######");
+                 * if (rsrv != null)
+                 * rsrv.Cancel();
+                 * }
+                 * 
+                 * if (rsrv != null) {
+                 * // 8. Change reservation values that can be changed (if reservation is
+                 * // cancelled, completed, or for past date, it is considered an error)
+                 * rsrv = Reservation.update(rsrv);
+                 * 
+                 * // 9. Request for price per night to be calculated and returned for a
+                 * specific
+                 * // reservation
+                 * 
+                 * rsrv = Reservation.calculatePricePerNight(rsrv);
+                 * // 10. Request for total reservation price to be calculated and returned for
+                 * a
+                 * // specific reservation
+                 * }
+                 */
+                System.out.println("Program Completed.");
+        }
+}

src/java/lodge/reservationsystem/AccomodationManager.java

@@ -0,0 +1,60 @@
+package lodge.reservationsystem;
+
+import java.nio.file.FileVisitResult;
+import java.nio.file.Files;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.attribute.BasicFileAttributes;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+public class AccomodationManager {
+
+    private AccountList account_list = new AccountList();
+
+    public void loadAll() throws Exception {
+        account_list.clear();
+        // walk directories
+        Path rootDir = Paths.get(DataRepository.getPath());
+        Files.walkFileTree(rootDir, new SimpleFileVisitor<Path>() {
+            @Override
+            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
+                System.out.println("File: " + file.toAbsolutePath());
+                // load account number, and content
+                // load reservation files
+                return FileVisitResult.CONTINUE;
+            }
+
+            @Override
+            public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) {
+                System.out.println("Directory: " + dir.toAbsolutePath());
+                // prepare to load account number
+                return FileVisitResult.CONTINUE;
+            }
+        });
+    }
+
+    public Account retrieveAccount(String acct_id) {
+        return AccountList.retrieveAccount(account_list, acct_id);
+    }
+
+    public void AddAccount(Account acct) throws Exception{
+        AccountList.addAccount(account_list, acct);
+    }
+
+    public void UpdateAccount(Account acct) throws Exception {
+
+        AccountList.save(account_list, acct);
+    }
+
+    public final Account newAccount(String phone_number, Address mailing_address, EmailAddress email_address) throws Exception {
+        Account acct = null;
+        try {
+            acct = AccountList.newAccount(phone_number, mailing_address, email_address);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        AccountList.save(account_list, acct);
+        return acct;
+    }
+}

src/java/lodge/reservationsystem/Account.java

@@ -0,0 +1,108 @@
+package lodge.reservationsystem;
+
+import java.io.BufferedOutputStream;
+import java.io.BufferedWriter;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+public class Account {
+        String account_number;
+        String phone_number;
+        Address mailing_address;
+        EmailAddress email_address;
+
+        public Account(
+                        String account_number,
+                        String phone_number,
+                        Address mailing_address,
+                        EmailAddress email_address) {
+                this.account_number = account_number;
+                this.phone_number = phone_number;
+                this.mailing_address = mailing_address;
+                this.email_address = email_address;
+        }
+
+        @Override
+        public String toString() {
+                return "Account [account_number=" + account_number + ", phone_number=" + phone_number
+                                + ", mailing_address=" + mailing_address + ", email_address=" + email_address
+                                + ", account_number()=" + account_number() + ", phone_number()=" + phone_number()
+                                + ", mailing_address()=" + mailing_address() + ", email_address()=" + email_address()
+                                + "]";
+        }
+
+        //@TODO Write Account out in JSON
+        public static void  Write(Account acct) throws IOException {
+                String dataRoot = DataRepository.getPath();
+                dataRoot = dataRoot + "/" + acct.account_number + ".txt";
+                Path path = Paths.get(dataRoot);
+
+                try(BufferedWriter writer = Files.newBufferedWriter(path, StandardCharsets.UTF_8)){
+                    writer.write(acct.toString());                
+                    writer.flush();
+                }
+        }
+
+        public String account_number() {
+                return account_number;
+        }
+
+        public void setAccount_number(String account_number) {
+                this.account_number = account_number;
+        }
+
+        public String phone_number() {
+                return phone_number;
+        }
+
+        public void setPhone_number(String phone_number) {
+                this.phone_number = phone_number;
+        }
+
+        public Address mailing_address() {
+                return mailing_address;
+        }
+
+        public void setMailing_address(Address mailing_address) {
+                this.mailing_address = mailing_address;
+        }
+
+        public EmailAddress email_address() {
+                return email_address;
+        }
+
+        public void setEmail_address(EmailAddress email_address) {
+                this.email_address = email_address;
+        }
+
+        @Override
+        public int hashCode() {
+                final int prime = 31;
+                int result = 1;
+                result = prime * result + ((account_number == null) ? 0 : account_number.hashCode());
+                return result;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+                if (this == obj)
+                        return true;
+                if (obj == null)
+                        return false;
+                if (getClass() != obj.getClass())
+                        return false;
+                Account other = (Account) obj;
+                if (account_number == null) {
+                        if (other.account_number != null)
+                                return false;
+                } else if (!account_number.equals(other.account_number))
+                        return false;
+                return true;
+        }
+}

src/java/lodge/reservationsystem/AccountList.java

@@ -0,0 +1,57 @@
+package lodge.reservationsystem;
+
+import java.util.ArrayList;
+
+public class AccountList extends ArrayList<Account> {
+
+    public static String accountSerial(String phone_number, Address mailing_address, EmailAddress email_address) {
+        return "A" + java.util.Objects.hash(phone_number, mailing_address, email_address);
+    }
+
+    public static Account newAccount(String phone_number,  Address mailing_address, EmailAddress email_address) throws Exception {
+        Account A = new Account(AccountList.accountSerial(phone_number, mailing_address, email_address),
+                phone_number,
+                mailing_address,
+                email_address);
+
+        return A;
+    }
+        // ** Add account throw error if account number is pre-existing. */
+    public static Account addAccount(AccountList account_list, Account account) throws NullPointerException, AccountException {
+        String acctNumber = "";
+        for(Account acct: account_list){
+            if( acct.account_number() == account.account_number() ){
+                acctNumber = acct.account_number();
+                break;
+            }
+        }
+        if (!acctNumber.isEmpty()) {
+            throw new AccountException("Account exists, duplicates not allowed.");
+        } else {
+            account_list.add(account);
+        }
+        return account;
+    }
+
+    // save account in edit status
+    public void save(Account acct) {
+
+    }
+
+    // save accounts in edit status
+    public static void save(AccountList account_list, Account acct) throws Exception {
+        for (Account account : account_list) {
+            Account.Write(account);
+        }
+    }
+
+    // ** Find account return null not-existing. */
+    public static Account retrieveAccount(AccountList account_list, String account_number) {
+        for(Account acct: account_list){
+            if( acct.account_number() == account_number ){
+                return acct;
+            }
+        }
+        return null;
+    }
+}

src/java/lodge/reservationsystem/AccountReservationList.java

@@ -0,0 +1,12 @@
+package lodge.reservationsystem;
+
+import java.util.ArrayList;
+
+public class AccountReservationList {
+
+    ArrayList<Reservation> reservation_list = new ArrayList<Reservation>();
+
+    public void addReservation(Reservation reservation) {
+        reservation_list.add(reservation);
+    }
+}

src/java/lodge/reservationsystem/Address.java

@@ -0,0 +1,85 @@
+package lodge.reservationsystem;
+
+public final class Address {
+    
+    String street;
+    String city;
+    String state;
+    String zip;
+    public Address(String street, String city, String state, String zip) {
+        this.street = street;
+        this.city = city;
+        this.state = state;
+        this.zip = zip;
+    }
+    public String getStreet() {
+        return street;
+    }
+    public void setStreet(String street) {
+        this.street = street;
+    }
+    public String getCity() {
+        return city;
+    }
+    public void setCity(String city) {
+        this.city = city;
+    }
+    public String getState() {
+        return state;
+    }
+    public void setState(String state) {
+        this.state = state;
+    }
+    public String getZip() {
+        return zip;
+    }
+    public void setZip(String zip) {
+        this.zip = zip;
+    }
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((street == null) ? 0 : street.hashCode());
+        result = prime * result + ((city == null) ? 0 : city.hashCode());
+        result = prime * result + ((state == null) ? 0 : state.hashCode());
+        result = prime * result + ((zip == null) ? 0 : zip.hashCode());
+        return result;
+    }
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        Address other = (Address) obj;
+        if (street == null) {
+            if (other.street != null)
+                return false;
+        } else if (!street.equals(other.street))
+            return false;
+        if (city == null) {
+            if (other.city != null)
+                return false;
+        } else if (!city.equals(other.city))
+            return false;
+        if (state == null) {
+            if (other.state != null)
+                return false;
+        } else if (!state.equals(other.state))
+            return false;
+        if (zip == null) {
+            if (other.zip != null)
+                return false;
+        } else if (!zip.equals(other.zip))
+            return false;
+        return true;
+    }
+    @Override
+    public String toString() {
+        return "Address [street=" + street + ", city=" + city + ", state=" + state + ", zip=" + zip + "]";
+    }
+    
+}

src/java/lodge/reservationsystem/CabinReservation.java

@@ -0,0 +1,10 @@
+package lodge.reservationsystem;
+
+public final class CabinReservation extends Reservation {
+
+  //calculate and return the reservation's price
+  public float calculatePrice() {
+	  return 0.0f;
+  }
+
+}

src/java/lodge/reservationsystem/DataRepository.java

@@ -0,0 +1,19 @@
+package lodge.reservationsystem;
+
+public final class DataRepository {
+    // hard code data store location for storage of
+    // account data files on filesystem
+    private String directoryPath;
+    private static final DataRepository instance = new DataRepository();
+    public static DataRepository getInstance() {
+        return instance;
+    }
+
+    public static void setDataStoreRoot(String direcoryPath){
+        getInstance().directoryPath = direcoryPath;
+    }
+
+    public static String getPath() {
+        return getInstance().directoryPath;
+    }
+}

src/java/lodge/reservationsystem/EmailAddress.java

@@ -0,0 +1,48 @@
+package lodge.reservationsystem;
+
+public class EmailAddress{
+    String email_address;
+    
+    public EmailAddress(String email_address) {
+        this.email_address = email_address;
+    }
+
+    public String getEmail_address() {
+        return email_address;
+    }
+
+    public void setEmail_address(String email_address) {
+        this.email_address = email_address;
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((email_address == null) ? 0 : email_address.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        EmailAddress other = (EmailAddress) obj;
+        if (email_address == null) {
+            if (other.email_address != null)
+                return false;
+        } else if (!email_address.equals(other.email_address))
+            return false;
+        return true;
+    }
+
+    @Override
+    public String toString() {
+        return "EmailAddress [email_address=" + email_address + "]";
+    }
+    
+}

src/java/lodge/reservationsystem/HotelReservation.java

@@ -0,0 +1,9 @@
+package lodge.reservationsystem;
+
+public final class HotelReservation extends Reservation {
+
+   //calculate and return the reservation's price
+  public float calculatePrice() {
+	  return 0.0f;
+  }
+}

src/java/lodge/reservationsystem/HouseReservation.java

@@ -0,0 +1,9 @@
+package lodge.reservationsystem;
+
+public final class HouseReservation extends Reservation {
+  //calculate and return the reservation's price
+  public float calculatePrice() {
+	  return 0.0f;
+  }
+
+}

src/java/lodge/reservationsystem/Reservation.java

@@ -0,0 +1,179 @@
+package lodge.reservationsystem;
+
+import java.time.ZonedDateTime;
+
+public abstract class Reservation {
+    String reservation_number;
+    String physical_address;
+    String mailing_address;
+
+    ZonedDateTime reservation_start_date;
+    ZonedDateTime reservation_end_date;
+    ReservationStatus reservation_status;
+
+    Integer numberOfBeds;
+    Integer numberOfBedRooms;
+    Integer numberOfBathRooms;
+    Integer numberOfFloors;
+    Integer squareFeet;
+
+    Float price;
+
+    public String reservation_number() {
+        return reservation_number;
+    }
+
+    public void setReservation_number(String reservation_number) {
+        this.reservation_number = reservation_number;
+    }
+
+    public String physical_address() {
+        return physical_address;
+    }
+
+    public void setPhysical_address(String physical_address) {
+        this.physical_address = physical_address;
+    }
+
+    public String mailing_address() {
+        return mailing_address;
+    }
+
+    public void setMailing_address(String mailing_address) {
+        this.mailing_address = mailing_address;
+    }
+
+    public ZonedDateTime reservation_start_date() {
+        return reservation_start_date;
+    }
+
+    public void setReservation_start_date(ZonedDateTime reservation_start_date) {
+        this.reservation_start_date = reservation_start_date;
+    }
+
+    public ZonedDateTime reservation_end_date() {
+        return reservation_end_date;
+    }
+
+    public void setReservation_end_date(ZonedDateTime reservation_end_date) {
+        this.reservation_end_date = reservation_end_date;
+    }
+
+    public ReservationStatus reservation_status() {
+        return reservation_status;
+    }
+
+    public void setReservation_status(ReservationStatus reservation_status) {
+        this.reservation_status = reservation_status;
+    }
+
+    public Integer numberOfBeds() {
+        return numberOfBeds;
+    }
+
+    public void setNumberOfBeds(Integer numberOfBeds) {
+        this.numberOfBeds = numberOfBeds;
+    }
+
+    public Integer numberOfBedRooms() {
+        return numberOfBedRooms;
+    }
+
+    public void setNumberOfBedRooms(Integer numberOfBedRooms) {
+        this.numberOfBedRooms = numberOfBedRooms;
+    }
+
+    public Integer numberOfBathRooms() {
+        return numberOfBathRooms;
+    }
+
+    public void setNumberOfBathRooms(Integer numberOfBathRooms) {
+        this.numberOfBathRooms = numberOfBathRooms;
+    }
+
+    public Integer numberOfFloors() {
+        return numberOfFloors;
+    }
+
+    public void setNumberOfFloors(Integer numberOfFloors) {
+        this.numberOfFloors = numberOfFloors;
+    }
+
+    public Integer squareFeet() {
+        return squareFeet;
+    }
+
+    public void setSquareFeet(Integer squareFeet) {
+        this.squareFeet = squareFeet;
+    }
+
+    public Float price() {
+        return price;
+    }
+
+    public void setPrice(Float price) {
+        this.price = price;
+    }
+
+    public Reservation() {
+        numberOfBeds = 0;
+        numberOfBedRooms = 0;
+        numberOfBathRooms = 0;
+        numberOfFloors = 0;
+        price = 0.0f;
+        reservation_status = ReservationStatus.Draft;
+    }
+
+    public void Draft(){
+        this.reservation_status=ReservationStatus.Draft;
+    }
+    
+    public void Cancel() {
+        this.reservation_status=ReservationStatus.Canceled;
+    }
+
+    public void Complete() {
+        this.reservation_status=ReservationStatus.Completed;
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((reservation_number == null) ? 0 : reservation_number.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        Reservation other = (Reservation) obj;
+        if (reservation_number == null) {
+            if (other.reservation_number != null)
+                return false;
+        } else if (!reservation_number.equals(other.reservation_number))
+            return false;
+        return true;
+    }
+
+   @Override
+   public String toString() {
+    return "Reservation [reservation_number=" + reservation_number + ", physical_address=" + physical_address
+            + ", mailing_address=" + mailing_address + ", reservation_start_date=" + reservation_start_date
+            + ", reservation_end_date=" + reservation_end_date + ", reservation_status=" + reservation_status
+            + ", numberOfBeds=" + numberOfBeds + ", numberOfBedRooms=" + numberOfBedRooms + ", numberOfBathRooms="
+            + numberOfBathRooms + ", numberOfFloors=" + numberOfFloors + ", squareFeet=" + squareFeet + ", price="
+            + price + "]";
+   }
+
+   public float calculatePricePerNight(){
+        return 0.0f;
+   }
+
+   public abstract float calculatePrice();
+}

src/java/lodge/reservationsystem/ReservationStatus.java

@@ -2,7 +2,7 @@ package lodge.reservationsystem;
 
 public enum ReservationStatus {
   Draft,
-  Completed,
-  Finished
+  Canceled,
+  Completed
    
 }

src/lodge/TestReservations.java

@@ -1,74 +0,0 @@
-package lodge;
-
-import lodge.reservationsystem.Account;
-import lodge.reservationsystem.Address;
-import lodge.reservationsystem.EmailAddress;
-//import lodge.reservationsystem.Address;
-//import lodge.reservationsystem.EmailAddress;
-import lodge.reservationsystem.ReservationSystemManager;
-
-public final class TestReservations {
-        public static void main(String[] args) throws Exception {
-
-                ReservationSystemManager mgr = new ReservationSystemManager();
-
-                mgr.setDataStoreRoot("~/data");
-
-                // 1. Get the list of loaded accounts from Manager
-
-                mgr.loadAll();
-
-                // 2. Retrieve a loaded account object that matches a specific account number
-
-                mgr.retrieveAccount("A######");
-
-                // 3. Add new account object to the list managed by Manager (if account object
-                // already exists on add action with the same account number, it is considered
-                // an error)
-
-                mgr.newAccount( "456-7890", new Address(), new EmailAddress() );
-
-                
-                // 4. Request that Manager updates specific account’s files with data stored in
-                // memory
-                
-                // 5. Add draft lodging reservation to an account (if reservation object already
-                // exists with the same reservation number, it is considered an error)
-                Account acct = mgr.retrieveAccount("A######");
-                
-                mgr.UpdateAccount( mgr.retrieveAccount("A######") );
-
-/*              if (acct != null)
-                        acct.addReservation(new HotelReservation());
-
-                // 6. Complete reservation that is associated with an account
-                Reservation rsrv = null;
-                acct = null;
-                acct = mgr.retrieveAccount("A######");
-                if (acct != null) {
-                        rsrv = acct.retrieve("?######");
-                        rsrv.Complete();
-                }
-
-                // 7. Cancel reservation that is associated with an account
-                if (acct != null) {
-                        rsrv = acct.retrieve("?######");
-                        if (rsrv != null)
-                                rsrv.Cancel();
-                }
-
-                if (rsrv != null) {
-                        // 8. Change reservation values that can be changed (if reservation is
-                        // cancelled, completed, or for past date, it is considered an error)
-                        rsrv = Reservation.update(rsrv);
-
-                        // 9. Request for price per night to be calculated and returned for a specific
-                        // reservation
-
-                        rsrv = Reservation.calculatePricePerNight(rsrv);
-                        // 10. Request for total reservation price to be calculated and returned for a
-                        // specific reservation
-                } */
-                System.out.println("Program Completed.");
-        }
-}

src/lodge/reservationsystem/Account.java

@@ -1,61 +0,0 @@
-package lodge.reservationsystem;
-
-import java.util.ArrayList;
-
-public final class Account {
-
-    String anumber;
-    ArrayList<Reservation> reservation_list = new ArrayList<Reservation>();
-
-    String phone_number;
-    Address mailing_address;
-    EmailAddress email_address;
-
-    public String getAnumber() {
-        return anumber;
-    }
-
-    public void setAnumber(String account_number) {
-        this.anumber = account_number;
-    }
-
-    public String toString() {
-        return super.toString();
-    }
-
-    public boolean equals(Object obj) {
-        if (obj == null) {
-            return false;
-        }
-
-        if (obj.getClass() != this.getClass()) {
-            return false;
-        }
-
-        final Account other = (Account) obj;
-        if ((this.getAnumber() == null) ? (other.getAnumber() != null)
-                : !this.getAnumber().equals(other.getAnumber())) {
-            return false;
-        }
-
-        return true;
-    }
-
-    public int hashCode() {
-        return java.util.Objects.hash(getAnumber());
-    }
-
-    public void addReservation(Reservation reservation) {
-        reservation_list.add(reservation);
-    }
-
-    public static Account newAccount(String phone_number, Address mailing_address, EmailAddress email_address)
-            throws Exception {
-        Account A = new Account();
-        A.anumber = "A" + java.util.Objects.hash(phone_number, mailing_address, email_address);
-        A.phone_number = phone_number;
-        A.mailing_address = mailing_address;
-        A.email_address = email_address;
-        return A;
-    }
-}

src/lodge/reservationsystem/Accounts.java

@@ -1,34 +0,0 @@
-package lodge.reservationsystem;
-
-import java.util.ArrayList;
-import java.util.Optional;
-
-public class Accounts extends ArrayList<Account> {
-
-        // ** Add account throw error if account number is pre-existing. */
-    public Account addAccount(Accounts account_list, Account account) throws NullPointerException, Exception {
-
-        if (account_list.stream().map(Account::getAnumber).count() > 0) {
-            throw new AccountException("Account exists, duplicates not allowed.");
-        } else {
-            account_list.add(account);
-        }
-        return account;
-    }
-
-    // save account in edit status
-    public void save(Account acct) {
-
-    }
-
-    // save accounts in edit status
-    public static void save(Accounts account_list, Account acct) {
-
-    }
-
-    // ** Find account return null not-existing. */
-    public static Account retrieveAccount(Accounts account_list, String account_number) {
-        Optional<Account> account = account_list.stream().filter(e -> e.getAnumber() == account_number).findFirst();
-        return account.isPresent() ? account.get() : null;
-    }
-}

src/lodge/reservationsystem/Address.java

@@ -1,47 +0,0 @@
-package lodge.reservationsystem;
-
-public class Address implements Cloneable {
-
-  public String street;
-
-  public String city;
-
-  public String state;
-
-  public String zip;
-
-  // format and return object's data in XML format
-  public String toString() {
-    return null;
-  }
-
-  // create and return a copy of the object
-  public Address clone() throws CloneNotSupportedException {
-    Address result = new Address();
-
-    result.street = this.street;
-    result.city = this.city;
-    result.state = this.state;
-    result.zip = this.zip;
-
-    return result;
-  }
-
-  public boolean equals(Object obj) {
-    if (obj == null) {
-      return false;
-    }
-
-    if (obj.getClass() != this.getClass()) {
-      return false;
-    }
-
-    final Account other = (Account) obj;
-    return hashCode() == other.hashCode();
-
-  }
-
-  public int hashCode() {
-    return java.util.Objects.hash(street, city, state, zip);
-  }
-}

src/lodge/reservationsystem/CabinReservation.java

@@ -1,21 +0,0 @@
-package lodge.reservationsystem;
-
-public class CabinReservation extends Reservation {
-
-//format and return object's data in XML format
-  public String toString() {
-	  return null;
-  }
-
-  //create and return a copy of the object
-  public CabinReservation clone() throws CloneNotSupportedException {
-    CabinReservation result = new CabinReservation();
-    return result;
-  }
-
-  //calculate and return the reservation's price
-  public float calculatePrice() {
-	  return 0.0f;
-  }
-
-}

src/lodge/reservationsystem/EmailAddress.java

@@ -1,6 +0,0 @@
-package lodge.reservationsystem;
-
-public class EmailAddress implements Cloneable{
-    String email_address;
-    
-}

src/lodge/reservationsystem/HotelReservation.java

@@ -1,21 +0,0 @@
-package lodge.reservationsystem;
-
-public class HotelReservation extends Reservation {
-
-//format and return object's data in XML format
-  public String toString() {
-	  return null;
-  }
-
-  //create and return a copy of the object
-  public HotelReservation clone() throws CloneNotSupportedException {
-    HotelReservation result = new HotelReservation();
-    return result;
-  }
-
-  //calculate and return the reservation's price
-  public float calculatePrice() {
-	  return 0.0f;
-  }
-
-}

src/lodge/reservationsystem/HouseReservation.java

@@ -1,21 +0,0 @@
-package lodge.reservationsystem;
-
-public class HouseReservation extends Reservation {
-
-//format and return object's data in XML format
-  public String toString() {
-	  return null;
-  }
-
-  //create and return a copy of the object
-  public HotelReservation clone() throws CloneNotSupportedException {
-    HotelReservation result = new HotelReservation();
-    return result;
-  }
-
-   //calculate and return the reservation's price
-  public float calculatePrice() {
-	  return 0.0f;
-  }
-
-}

src/lodge/reservationsystem/Reservation.java

@@ -1,76 +0,0 @@
-package lodge.reservationsystem;
-
-import java.time.ZonedDateTime;
-
-public abstract class Reservation implements Cloneable {
-
-  String reservation_number;
-  String physical_address;
-  String mailing_address;
-
-  ZonedDateTime reservation_start_date;
-  ZonedDateTime reservation_end_date;
-
-  ReservationStatus reservation_status = ReservationStatus.Draft;
-
-  Integer numberOfBeds = 0;
-  Integer numberOfBedRooms = 0;
-  Integer numberOfBathRooms = 0;
-
-  Integer squareFeet = 0;
-
-  Float price = 0.0f;
-
-  // format and return object's data in XML format
-  public String toString() {
-    return null;
-  }
-
-  public boolean equals(Object obj) {
-    if (obj == null) {
-      return false;
-    }
-
-    if (obj.getClass() != this.getClass()) {
-      return false;
-    }
-
-    final Reservation other = (Reservation) obj;
-    if ((reservation_number == null) ? (other.reservation_number != null)
-        : !reservation_number.equals(other.reservation_number)) {
-      return false;
-    }
-
-    return true;
-  }
-
-  public int hashCode() {
-    return java.util.Objects.hash(reservation_number);
-  }
-
-  // create and return a copy of the object
-  public abstract Reservation clone() throws CloneNotSupportedException;
-
-  public void Cancel() throws Exception {
-
-  }
-
-  public void Complete() throws Exception {
-
-  }
-
-    // public Reservation retrieve( ArrayList<Reservation> reservation_list, String reservation_number) {
-    //     Optional<Reservation> reservation = reservation_list.stream()
-    //             .filter(e -> e.reservation_number == reservation_number).findFirst();
-    //     return reservation.isPresent() ? reservation.get() : null;
-    // }
-
-  public static Reservation update(Reservation rsrv) {
-    return rsrv;
-  }
-
-  public static Reservation calculatePricePerNight(Reservation rsrv) {
-    return rsrv;
-  }
-
-}

src/lodge/reservationsystem/ReservationSystemManager.java

@@ -1,41 +0,0 @@
-package lodge.reservationsystem;
-
-public class ReservationSystemManager {
-
-    Accounts account_list = new Accounts();
-    // hard code data store location for storage of
-    // account data files on filesystem
-    String DATASTOREROOT = "";
-
-    public String getDataStoreRoot() {
-        return DATASTOREROOT;
-    }
-
-    public void setDataStoreRoot(String filePath) {
-        DATASTOREROOT = filePath;
-    }
-
-    public void loadAll(){
-
-    }
-
-    public Account retrieveAccount(String acct_id){
-        return Accounts.retrieveAccount( account_list, acct_id );
-    }
-
-    public void UpdateAccount(Account acct) {
-
-        Accounts.save(account_list, acct);
-    }
-
-    public final Account newAccount(String phone_number, Address mailing_address, EmailAddress email_address){
-        Account acct = null;
-        try {
-            acct = Account.newAccount(phone_number, mailing_address, email_address);
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-        Accounts.save(account_list, acct);
-        return acct;
-    }
-}

src/module-info.java

@@ -1,3 +0,0 @@
-module lodge {
-    exports lodge.reservationsystem;
-}