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added serialization

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This commit is contained in:
Sherwin Price
2025-08-30 11:26:49 -04:00
parent dda4495a21
commit fd5a24af8e
13 changed files with 155 additions and 69 deletions
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3
src/java/lodge/TestReservations.java
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@@ -12,7 +12,8 @@ public final class TestReservations {
AccomodationManager mgr = new AccomodationManager();
String home = System.getenv("HOMEDRIVE")+System.getenv("HOMEPATH");
home= home.replace("\\", "/") + "/data";
home= home.replace("\\", "/")
+ "/workspace/reservationsystem/src/resources";
mgr.setDataStoreRoot(home);
// 1. Get the list of loaded accounts from Manager

96
src/java/lodge/reservationsystem/AccomodationManager.java
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@@ -1,43 +1,61 @@
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.io.BufferedReader;
import java.io.FileReader;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.nio.file.Paths;
public class AccomodationManager {
import com.google.gson.stream.JsonReader;
private AccountList account_list = new AccountList();
public final class AccomodationManager {
public void loadAll() throws Exception {
private final AccountList account_list = new AccountList();
public void setDataStoreRoot(String home) {
DataRepository.setDataStoreRoot(home);
}
public final 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
return FileVisitResult.CONTINUE;
}
DataRepository.WalkFileSystemTree(this, rootDir);
}
@Override
public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) {
System.out.println("Directory: " + dir.toAbsolutePath());
// prepare to load account number
return FileVisitResult.CONTINUE;
// Load / Deserialize Account
void load(Path file) throws Exception {
/** @TODO finish loading Account */
try (BufferedReader in = new BufferedReader(new FileReader(file.toFile(), StandardCharsets.UTF_8))) {
JsonReader jsonReader = new JsonReader(in);
jsonReader.beginObject();
while (jsonReader.hasNext()) {
String name = jsonReader.nextName();
switch (name) {
case "Account":
System.out.println("Load Account");
jsonReader.skipValue();
jsonReader.endObject();
break;
default:
System.out.println(name);
return;
}
}
});
jsonReader.close();
}
}
public final AccountList retrieveLoadedAccounts() {
return account_list;
}
public Account retrieveAccount(String acct_id) {
return AccountList.retrieveAccount(account_list, acct_id);
}
public void AddAccount(Account acct) throws Exception{
public void AddAccount(Account acct) throws Exception {
AccountList.addAccount(account_list, acct);
}
@@ -46,7 +64,8 @@ public class AccomodationManager {
AccountList.save(account_list, acct);
}
public final Account newAccount(String phone_number, Address mailing_address, EmailAddress email_address) throws Exception {
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);
@@ -58,40 +77,17 @@ public class AccomodationManager {
}
public boolean addReservation(final Account account, final Reservation reservation) {
return account.reservation_list.add(reservation);
return account.reservation_list.add(reservation);
}
public Reservation retreiveReservation(String reservation_number) {
for(Account acct: account_list){
for(Reservation rsv: acct.reservation_list){
if(rsv.reservation_number == reservation_number){
for (Account acct : account_list) {
for (Reservation rsv : acct.reservation_list) {
if (rsv.reservation_number == reservation_number) {
return rsv;
}
}
}
return null;
}
public void setDataStoreRoot(String home) {
DataRepository.setDataStoreRoot(home);
}
}
final class DataRepository {
// SINGLETON CLASS
// hard code data store location for storage of
// account data files on filesystem
private String directoryPath;
private static final DataRepository instance = new DataRepository();
static DataRepository getInstance() {
return instance;
}
final static void setDataStoreRoot(final String direcoryPath){
getInstance().directoryPath = direcoryPath;
}
final static String getPath() {
return getInstance().directoryPath;
}
}

6
src/java/lodge/reservationsystem/Account.java
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@@ -8,7 +8,7 @@ import java.nio.file.Path;
import java.nio.file.Paths;
public class Account {
String account_number;
String account_number="-99";
String phone_number;
Address mailing_address;
EmailAddress email_address;
@@ -34,7 +34,8 @@ public class Account {
sb.append("\"account_number\": \"" + account_number + "\",");
sb.append("\"phone_number\": \"" + phone_number + "\",");
sb.append("\"mailing_address\": " + mailing_address + ",");
sb.append("\"email_address\": " + email_address );
sb.append("\"email_address\": " + email_address + "," );
sb.append( this.reservation_list.toString());
sb.append("}}");
return sb.toString();
}
@@ -47,7 +48,6 @@ public class Account {
try (BufferedWriter writer = Files.newBufferedWriter(path, StandardCharsets.UTF_8)) {
writer.write(acct.toString());
writer.write(acct.reservation_list.toString());
writer.flush();
}
}

2
src/java/lodge/reservationsystem/AccountList.java
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@@ -5,7 +5,7 @@ import java.util.ArrayList;
public class AccountList extends ArrayList<Account> {
public static String accountSerial(String phone_number, Address mailing_address, EmailAddress email_address) {
return String.format("A%010d", java.util.Objects.hash(phone_number, mailing_address, email_address));
return String.format("A%09d", 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 {

15
src/java/lodge/reservationsystem/AccountReservationList.java
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@@ -5,7 +5,7 @@ import java.util.ArrayList;
public class AccountReservationList extends ArrayList<Reservation> {
private static String reservationSerial(Reservation reservation) {
return String.format("R%04d", java.util.Objects.hash(reservation));
return String.format("R%010d", java.util.Objects.hash(reservation));
}
public boolean add(final Reservation reservation) {
@@ -16,11 +16,16 @@ public class AccountReservationList extends ArrayList<Reservation> {
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("{ \"AccountReservationList\":{");
for(int ix=0; ix < this.size() ; ++ix){
sb.append(String.format("{ \"%d\":\"%s\"},", ix, this.get(ix).reservation_number));
sb.append("\"AccountReservationList\":[");
for(int ix=0; ix < this.size() ; ix++){
if( ( this.size() - 1 ) == ix ){
sb.append(String.format("{ \"%d\":\"%s\"}", ix, this.get(ix).reservation_number));
}else{
sb.append(String.format("{ \"%d\":\"%s\"},", ix, this.get(ix).reservation_number));
}
}
sb.append("}}");
sb.append("]");
return sb.toString();
}
}

8
src/java/lodge/reservationsystem/CabinReservation.java
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@@ -2,9 +2,15 @@ package lodge.reservationsystem;
public final class CabinReservation extends Reservation {
final char type = 'C';
public final char ReservationType() {
return type;
}
//calculate and return the reservation's price
// Cabin price plus additional fee of $20 for full kitchen and $5 for each additional bathroom
public float calculatePrice() {
return 0.0f;
price = (squareFeet > 900.0f) ? price + 15.0f : price;
return price;
}
}

59
src/java/lodge/reservationsystem/DataRepository.java Normal file
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@@ -0,0 +1,59 @@
package lodge.reservationsystem;
import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
final class DataRepository {
// SINGLETON CLASS
// hard code data store location for storage of
// account data files on filesystem
private String directoryPath;
private static final DataRepository instance = new DataRepository();
protected static DataRepository getInstance() {
return instance;
}
public final static void setDataStoreRoot(final String direcoryPath) {
getInstance().directoryPath = direcoryPath;
}
public final static String getPath() {
return getInstance().directoryPath;
}
public static void WalkFileSystemTree(final AccomodationManager manager, Path rootDir) throws IOException{
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
if (attrs.isRegularFile()) {
String namestring = file.getName(file.getNameCount() - 1).toString();
if (namestring.endsWith("json")) {
if (namestring.startsWith("acc")) { // * load Account *//
try {
manager.load(file);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
// load reservation
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;
}
});
}
}

6
src/java/lodge/reservationsystem/HotelReservation.java
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@@ -2,8 +2,14 @@ package lodge.reservationsystem;
public final class HotelReservation extends Reservation {
final char type = 'H';
public final char ReservationType() {
return type;
}
//calculate and return the reservation's price
// Hotel price plus additional flat fee of $50 plus $10 for kitchenette
public float calculatePrice() {
// flat fee
return 0.0f;
}
}

10
src/java/lodge/reservationsystem/HouseReservation.java
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@@ -1,9 +1,15 @@
package lodge.reservationsystem;
public final class HouseReservation extends Reservation {
//calculate and return the reservation's price
final char type = 'Z';
public final char ReservationType() {
return type;
}
// calculate and return the reservation's price
public float calculatePrice() {
return 0.0f;
return 0.0f;
}
}

15
src/java/lodge/reservationsystem/Reservation.java
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@@ -12,6 +12,7 @@ public abstract class Reservation {
ZonedDateTime reservation_end_date;
ReservationStatus reservation_status;
Boolean hasKitchenette;
Integer numberOfBeds;
Integer numberOfBedRooms;
Integer numberOfBathRooms;
@@ -117,11 +118,11 @@ public abstract class Reservation {
}
public Reservation() {
numberOfBeds = 0;
numberOfBedRooms = 0;
numberOfBathRooms = 0;
numberOfFloors = 0;
price = 0.0f;
numberOfBeds = 1;
numberOfBedRooms = 1;
numberOfBathRooms = 1;
numberOfFloors = 1;
price = 120.0f;
reservation_status = ReservationStatus.Draft;
}
@@ -165,7 +166,9 @@ public abstract class Reservation {
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("{ \"Reservation\":{");
sb.append("\"reservation_type\": \"" + ReservationType() + "\",");
sb.append("\"reservation_number\": \"" + reservation_number + "\",");
sb.append("\"reservation_status\": \"" + reservation_status + "\",");
sb.append("\"reservation_start_date\": \"" + reservation_start_date + "\",");
@@ -191,5 +194,7 @@ public abstract class Reservation {
return 0.0f;
}
public abstract char ReservationType();
public abstract float calculatePrice();
}

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src/lib/gson-2.13.1.jar
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1
src/resources/acc-A1858063803.json Normal file
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@@ -0,0 +1 @@
{ "Account":{"account_number": "A1858063803","phone_number": "767-456-7890","mailing_address": { "Address":{"street": "10 wilco ave","city": "wilco","state": "WY","zip": "82801"}},"email_address": { "EmailAdress":{"email": "wilco@wyommin.net"}},"AccountReservationList":[{ "0":"R0000000062"}]}}

1
src/resources/rsv-C0062.json Normal file
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@@ -0,0 +1 @@
{"CabinReservation": ""}