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Reformatted the codebase 

Signed-off-by: Jim Martens <github@2martens.de>
This commit is contained in:
Jim Martens 2017-04-25 16:09:55 +02:00
parent 6e7c1ed8bd
commit 9366ab384e
13 changed files with 883 additions and 810 deletions
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113
02/src/de/dis2017/FormUtil.java
View File

@ -11,7 +11,8 @@ class FormUtil {
/**
* Reads a string from the console.
*
* @param label Label that is shown before the input
* @param label
* Label that is shown before the input
* @return read string
*/
static String readString(String label) {
@ -19,81 +20,87 @@ class FormUtil {
}
/**
* Reads a string from the console.
*
* @param label Label that is shown before the input
* @param defaultValue the default value in case an empty input is provided
* @return read string
*/
static String readString(String label, String defaultValue) {
String ret = null;
BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
try {
System.out.print(label + (!defaultValue.isEmpty() ? "[" + defaultValue + "]" : "") + ": ");
ret = stdin.readLine();
ret = ret.isEmpty() ? defaultValue : ret;
} catch (IOException e) {
e.printStackTrace();
}
return ret;
}
* Reads a string from the console.
*
* @param label
* Label that is shown before the input
* @param defaultValue
* the default value in case an empty input is provided
* @return read string
*/
static String readString(String label, String defaultValue) {
String ret = null;
BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
try {
System.out.print(label + (!defaultValue.isEmpty() ? "[" + defaultValue + "]" : "") + ": ");
ret = stdin.readLine();
ret = ret.isEmpty() ? defaultValue : ret;
} catch (IOException e) {
e.printStackTrace();
}
return ret;
}
/**
* Reads a password from the console.
*
* @return the entered password
*/
static String readPassword() {
String password;
static String readPassword() {
String password;
System.out.print("Password: ");
password = String.valueOf(System.console().readPassword());
return password;
}
/**
/**
* Reads a password from the console.
*
* @return the entered password
*/
static String readPassword(String oldPassword) {
String password = readPassword();
return password.isEmpty() ? oldPassword : password;
static String readPassword(String oldPassword) {
String password = readPassword();
return password.isEmpty() ? oldPassword : password;
}
/**
* Reads an integer from the console.
*
* @param label Label that is shown before the input
* @param label
* Label that is shown before the input
* @return read integer
*/
static int readInt(String label) {
return readInt(label, -1);
}
/**
* Reads an integer from the console.
/**
* Reads an integer from the console.
*
* @param label Label that is shown before the input
* @param defaultValue the default value
* @return read integer
*/
static int readInt(String label, int defaultValue) {
int ret = 0;
boolean finished = false;
String defaultValueStr = defaultValue == -1 ? "" : String.valueOf(defaultValue);
while(!finished) {
String line = readString(label, defaultValueStr);
try {
ret = Integer.parseInt(line);
finished = true;
} catch (NumberFormatException e) {
System.err.println("Invalid input: Please insert a valid number!");
}
}
return ret;
}
* @param label
* Label that is shown before the input
* @param defaultValue
* the default value
* @return read integer
*/
static int readInt(String label, int defaultValue) {
int ret = 0;
boolean finished = false;
String defaultValueStr = defaultValue == -1 ? "" : String.valueOf(defaultValue);
while (!finished) {
String line = readString(label, defaultValueStr);
try {
ret = Integer.parseInt(line);
finished = true;
} catch (NumberFormatException e) {
System.err.println("Invalid input: Please insert a valid number!");
}
}
return ret;
}
}

403
02/src/de/dis2017/Main.java
View File

@ -22,115 +22,113 @@ import java.util.List;
public class Main {
private static ORM _orm;
/**
* Starts the application.
*/
public static void main(String[] args) {
_orm = new ORM();
showMainMenu();
}
/**
* Shows the main menu.
*/
private static void showMainMenu() {
// menu options
final int MENU_AGENT = 0;
final int MENU_ESTATES = 1;
final int MENU_CONTRACTS = 2;
final int QUIT = 3;
// create menu
Menu mainMenu = new Menu("Main menu");
mainMenu.addEntry("EstateAgent management", MENU_AGENT);
mainMenu.addEntry("Estate management", MENU_ESTATES);
mainMenu.addEntry("Contract management", MENU_CONTRACTS);
mainMenu.addEntry("Quit", QUIT);
// process input
while(true) {
int response = mainMenu.show();
switch(response) {
case MENU_AGENT:
if (checkPassword()) {
/**
* Starts the application.
*/
public static void main(String[] args) {
_orm = new ORM();
showMainMenu();
}
/**
* Shows the main menu.
*/
private static void showMainMenu() {
// menu options
final int MENU_AGENT = 0;
final int MENU_ESTATES = 1;
final int MENU_CONTRACTS = 2;
final int QUIT = 3;
// create menu
Menu mainMenu = new Menu("Main menu");
mainMenu.addEntry("EstateAgent management", MENU_AGENT);
mainMenu.addEntry("Estate management", MENU_ESTATES);
mainMenu.addEntry("Contract management", MENU_CONTRACTS);
mainMenu.addEntry("Quit", QUIT);
// process input
while (true) {
int response = mainMenu.show();
switch (response) {
case MENU_AGENT:
if (checkPassword()) {
showEstateAgentMenu();
} else {
System.out.println("The password was wrong.");
}
else {
System.out.println("The password was wrong.");
}
break;
case MENU_ESTATES:
if (loginEstateAgent()) {
break;
case MENU_ESTATES:
if (loginEstateAgent()) {
showEstateMenu();
} else {
System.out.println("The username or password was wrong.");
}
else {
System.out.println("The username or password was wrong.");
}
break;
case MENU_CONTRACTS:
showContractMenu();
break;
case QUIT:
return;
}
}
}
/**
break;
case MENU_CONTRACTS:
showContractMenu();
break;
case QUIT:
return;
}
}
}
/**
* Checks the password for sudo-like menu areas.
*/
private static boolean checkPassword() {
System.out.println("Please insert the sudo password. You are entering dangerous territory.");
private static boolean checkPassword() {
System.out.println("Please insert the sudo password. You are entering dangerous territory.");
String passwordInput = FormUtil.readPassword();
String sudoPassword = "ea-sudo";
String sudoPassword = "ea-sudo";
return sudoPassword.equals(passwordInput);
}
}
/**
* Performs a login for an estate agent.
*
* @return true if the login is successful, false otherwise
*/
private static boolean loginEstateAgent() {
private static boolean loginEstateAgent() {
System.out.println("Please insert the username and password of a valid estate agent.");
String username = FormUtil.readString("Username");
String passwordInput = FormUtil.readPassword();
EstateAgent agent = _orm.getAgent(username);
return agent != null && agent.getPassword().equals(passwordInput);
}
/**
* Shows the estate management menu.
*/
private static void showEstateMenu() {
// menu options
final int NEW_ESTATE = 0;
final int LIST_ESTATES = 1;
final int BACK = 2;
// estate management menu
Menu estateMenu = new Menu("Estate management");
estateMenu.addEntry("Create Estate", NEW_ESTATE);
estateMenu.addEntry("List Estates", LIST_ESTATES);
estateMenu.addEntry("Back to the main menu", BACK);
// process input
while(true) {
int response = estateMenu.show();
switch(response) {
case NEW_ESTATE:
newEstate();
break;
case LIST_ESTATES:
listEstates();
break;
case BACK:
return;
}
}
}
/**
* Shows the estate management menu.
*/
private static void showEstateMenu() {
// menu options
final int NEW_ESTATE = 0;
final int LIST_ESTATES = 1;
final int BACK = 2;
// estate management menu
Menu estateMenu = new Menu("Estate management");
estateMenu.addEntry("Create Estate", NEW_ESTATE);
estateMenu.addEntry("List Estates", LIST_ESTATES);
estateMenu.addEntry("Back to the main menu", BACK);
// process input
while (true) {
int response = estateMenu.show();
switch (response) {
case NEW_ESTATE:
newEstate();
break;
case LIST_ESTATES:
listEstates();
break;
case BACK:
return;
}
}
}
/**
* Creates a new estate agent after the usesr has entered the necessary data.
@ -138,9 +136,9 @@ public class Main {
private static void newEstate() {
printListOfAgents();
String input = FormUtil.readString("Apartment(A)/House(H)");
String input = FormUtil.readString("Apartment(A)/House(H)");
boolean isApartment = input.equals("A") || input.equals("a");
Estate estate = new Estate();
Estate estate = new Estate();
estate.setStreet(FormUtil.readString("Street"));
estate.setStreetNumber(FormUtil.readInt("Street Number"));
estate.setPostalCode(FormUtil.readString("Postal Code"));
@ -156,8 +154,7 @@ public class Main {
apartment.setBalcony(input.equals("Y") || input.equals("y"));
input = FormUtil.readString("Built-in Kitchen(Y/N)");
apartment.setBuiltinKitchen(input.equals("Y") || input.equals("y"));
}
else {
} else {
House house = new House(estate);
house.setPrice(FormUtil.readInt("Price"));
house.setFloors(FormUtil.readInt("Floors"));
@ -172,9 +169,9 @@ public class Main {
/**
* Lists estates.
*/
private static void listEstates() {
List<?> estates = _orm.getAll(Type.ESTATE);
Menu listEstates = new Menu("Please select the estate you want to modify or delete");
private static void listEstates() {
List<?> estates = _orm.getAll(Type.ESTATE);
Menu listEstates = new Menu("Please select the estate you want to modify or delete");
System.out.println("List of Estates");
final int BACK = 0;
@ -188,7 +185,7 @@ public class Main {
listEstates.addEntry("Back to the Estate management menu", BACK);
// process input
while(true) {
while (true) {
int response = listEstates.show();
switch (response) {
@ -199,13 +196,14 @@ public class Main {
break;
}
}
}
/**
* Shows a selected estate.
*
* @param id the id of the selected estate
* @param id
* the id of the selected estate
*/
private static void showEstate(int id) {
Estate estate = _orm.getEstate(id);
@ -215,14 +213,14 @@ public class Main {
final int MODIFY = 1;
final int DELETE = 2;
final int BACK = 3;
final int BACK = 3;
Menu showEstateMenu = new Menu("Do you want to modify or delete the estate?");
showEstateMenu.addEntry("Modify", MODIFY);
showEstateMenu.addEntry("Delete", DELETE);
showEstateMenu.addEntry("Back to the list of estates", BACK);
while(true) {
while (true) {
int response = showEstateMenu.show();
switch (response) {
@ -241,7 +239,8 @@ public class Main {
/**
* Prints the estate details to command line.
*
* @param estate the estate from which the details should be printed to commandline
* @param estate
* the estate from which the details should be printed to commandline
*/
private static void printEstateDetails(Estate estate) {
System.out.println("------------------");
@ -257,8 +256,7 @@ public class Main {
System.out.println("Price: " + house.getPrice());
System.out.println("Floors: " + house.getFloors());
System.out.println("Garden: " + (house.hasGarden() ? "yes" : "false"));
}
else if (estate instanceof Apartment) {
} else if (estate instanceof Apartment) {
Apartment apartment = (Apartment) estate;
System.out.println("Floor: " + apartment.getFloor());
System.out.println("Rooms: " + apartment.getRooms());
@ -276,7 +274,7 @@ public class Main {
List<?> agents = _orm.getAll(Type.ESTATEAGENT);
System.out.println("List of EstateAgents");
System.out.println("------------------");
for (Object o : agents) {
EstateAgent agent = (EstateAgent) o;
System.out.println("ID: " + agent.getId() + ", Name: " + agent.getName());
@ -287,35 +285,35 @@ public class Main {
/**
* Modify estate.
*
* @param estate the modified estate
* @param estate
* the modified estate
*/
private static void modifyEstate(Estate estate) {
System.out.println("Modify Estate");
printEstateDetails(estate);
printListOfAgents();
estate.setStreet(FormUtil.readString("Street", estate.getStreet()));
estate.setStreetNumber(FormUtil.readInt("Street Number", estate.getStreetNumber()));
estate.setPostalCode(FormUtil.readString("Postal Code", estate.getPostalCode()));
estate.setCity(FormUtil.readString("City", estate.getCity()));
estate.setSquareArea(FormUtil.readInt("Square Area", estate.getSquareArea()));
estate.setAgent(FormUtil.readInt("EstateAgent ID", estate.getAgent()));
if (estate instanceof Apartment) {
Apartment apartment = (Apartment) estate;
apartment.setFloor(FormUtil.readInt("Floor", apartment.getFloor()));
apartment.setRooms(FormUtil.readInt("Rooms", apartment.getRooms()));
apartment.setRent(FormUtil.readInt("Rent", apartment.getRent()));
String input = FormUtil.readString("Balcony(Y/N)", apartment.hasBalcony()?"Y":"N");
String input = FormUtil.readString("Balcony(Y/N)", apartment.hasBalcony() ? "Y" : "N");
apartment.setBalcony(input.equals("Y") || input.equals("y"));
input = FormUtil.readString("Built-in Kitchen(Y/N)", apartment.hasBuiltinKitchen()?"Y":"N");
input = FormUtil.readString("Built-in Kitchen(Y/N)", apartment.hasBuiltinKitchen() ? "Y" : "N");
apartment.setBuiltinKitchen(input.equals("Y") || input.equals("y"));
}
else if (estate instanceof House){
} else if (estate instanceof House) {
House house = (House) estate;
house.setFloors(FormUtil.readInt("Floors", house.getFloors()));
house.setPrice(FormUtil.readInt("Price", house.getPrice()));
String input = FormUtil.readString("Garden(Y/N)", house.hasGarden()?"Y":"N");
String input = FormUtil.readString("Garden(Y/N)", house.hasGarden() ? "Y" : "N");
house.setGarden(input.equals("Y") || input.equals("y"));
}
@ -328,68 +326,69 @@ public class Main {
/**
* Deletes an estate.
*
* @param estate the estate that should be deleted
* @param estate
* the estate that should be deleted
*/
private static void deleteEstate(Estate estate) {
_orm.delete(estate);
System.out.println("Estate with the ID " + estate.getId() + " was deleted.");
}
/**
* Shows the estate agent management.
*/
private static void showEstateAgentMenu() {
// menu options
final int NEW_AGENT = 0;
/**
* Shows the estate agent management.
*/
private static void showEstateAgentMenu() {
// menu options
final int NEW_AGENT = 0;
final int LIST_AGENTS = 1;
final int BACK = 2;
// estate management menu
Menu estateAgentMenu = new Menu("EstateAgent management");
estateAgentMenu.addEntry("Create EstateAgent", NEW_AGENT);
final int BACK = 2;
// estate management menu
Menu estateAgentMenu = new Menu("EstateAgent management");
estateAgentMenu.addEntry("Create EstateAgent", NEW_AGENT);
estateAgentMenu.addEntry("List EstateAgents", LIST_AGENTS);
estateAgentMenu.addEntry("Back to the main menu", BACK);
// process input
while(true) {
int response = estateAgentMenu.show();
switch(response) {
case NEW_AGENT:
newEstateAgent();
break;
estateAgentMenu.addEntry("Back to the main menu", BACK);
// process input
while (true) {
int response = estateAgentMenu.show();
switch (response) {
case NEW_AGENT:
newEstateAgent();
break;
case LIST_AGENTS:
listEstateAgents();
break;
case BACK:
return;
}
}
}
/**
* Creates a new estate agent after the user has entered the necessary data.
*/
private static void newEstateAgent() {
EstateAgent agent = new EstateAgent();
agent.setName(FormUtil.readString("Name"));
agent.setAddress(FormUtil.readString("Address"));
agent.setLogin(FormUtil.readString("Login"));
agent.setPassword(FormUtil.readPassword());
_orm.persist(agent);
System.out.println("EstateAgent with the ID " + agent.getId() + " was created.");
}
case BACK:
return;
}
}
}
/**
* Creates a new estate agent after the user has entered the necessary data.
*/
private static void newEstateAgent() {
EstateAgent agent = new EstateAgent();
agent.setName(FormUtil.readString("Name"));
agent.setAddress(FormUtil.readString("Address"));
agent.setLogin(FormUtil.readString("Login"));
agent.setPassword(FormUtil.readPassword());
_orm.persist(agent);
System.out.println("EstateAgent with the ID " + agent.getId() + " was created.");
}
/**
* List estate agents.
*/
private static void listEstateAgents() {
// get all agents
List<?> agents = _orm.getAll(Type.ESTATEAGENT);
Menu listEstateAgents = new Menu("Please select the estate agent you want to modify or delete");
private static void listEstateAgents() {
// get all agents
List<?> agents = _orm.getAll(Type.ESTATEAGENT);
Menu listEstateAgents = new Menu("Please select the estate agent you want to modify or delete");
System.out.println("List of EstateAgents");
final int BACK = 0;
@ -401,7 +400,7 @@ public class Main {
listEstateAgents.addEntry("Back to the EstateAgent management menu", BACK);
// process input
while(true) {
while (true) {
int response = listEstateAgents.show();
switch (response) {
@ -417,11 +416,12 @@ public class Main {
/**
* Shows a selected estate agent.
*
* @param id the id of the selected agent
* @param id
* the id of the selected agent
*/
private static void showEstateAgent(int id) {
EstateAgent agent = _orm.getAgent(id);
System.out.println("EstateAgent");
System.out.println("------------------");
System.out.println("ID: " + id);
@ -432,14 +432,14 @@ public class Main {
final int MODIFY = 1;
final int DELETE = 2;
final int BACK = 3;
final int BACK = 3;
Menu showEstateAgentMenu = new Menu("Do you want to modify or delete the agent?");
showEstateAgentMenu.addEntry("Modify", MODIFY);
showEstateAgentMenu.addEntry("Delete", DELETE);
showEstateAgentMenu.addEntry("Back to the list of agents", BACK);
while(true) {
while (true) {
int response = showEstateAgentMenu.show();
switch (response) {
@ -458,24 +458,25 @@ public class Main {
/**
* Modify estate agent.
*
* @param agent the modified agent
* @param agent
* the modified agent
*/
private static void modifyEstateAgent(EstateAgent agent) {
System.out.println("Modify EstateAgent");
System.out.println("------------------");
System.out.println("ID: " + agent.getId());
System.out.println("Name: " + agent.getName());
System.out.println("Address: " + agent.getAddress());
System.out.println("Modify EstateAgent");
System.out.println("------------------");
System.out.println("ID: " + agent.getId());
System.out.println("Name: " + agent.getName());
System.out.println("Address: " + agent.getAddress());
System.out.println("Username: " + agent.getLogin());
System.out.println("------------------");
agent.setName(FormUtil.readString("Name", agent.getName()));
agent.setAddress(FormUtil.readString("Address", agent.getAddress()));
agent.setLogin(FormUtil.readString("Username", agent.getLogin()));
agent.setPassword(FormUtil.readPassword(agent.getPassword()));
_orm.persist(agent);
agent.setAddress(FormUtil.readString("Address", agent.getAddress()));
agent.setLogin(FormUtil.readString("Username", agent.getLogin()));
agent.setPassword(FormUtil.readPassword(agent.getPassword()));
_orm.persist(agent);
System.out.println("------------------");
System.out.println("Agent was modified.");
}
@ -483,7 +484,8 @@ public class Main {
/**
* Deletes an estate agent.
*
* @param agent the agent that should be deleted
* @param agent
* the agent that should be deleted
*/
private static void deleteEstateAgent(EstateAgent agent) {
_orm.delete(agent);
@ -495,23 +497,23 @@ public class Main {
*/
private static void showContractMenu() {
// menu options
final int INSERT_PERSON = 0;
final int CREATE_CONTRACT = 1;
final int INSERT_PERSON = 0;
final int CREATE_CONTRACT = 1;
final int OVERVIEW_CONTRACTS = 2;
final int BACK = 3;
final int BACK = 3;
// create menu
Menu mainMenu = new Menu("Contract Management");
mainMenu.addEntry("Insert person", INSERT_PERSON );
mainMenu.addEntry("Insert person", INSERT_PERSON);
mainMenu.addEntry("Create/Sign contract", CREATE_CONTRACT);
mainMenu.addEntry("Contracts overview", OVERVIEW_CONTRACTS);
mainMenu.addEntry("Back", BACK);
// process input
while(true) {
while (true) {
int response = mainMenu.show();
switch(response) {
switch (response) {
case INSERT_PERSON:
newPerson();
break;
@ -551,7 +553,7 @@ public class Main {
System.out.println("Please enter the date of the contract.");
contract.setDate(Date.valueOf(FormUtil.readInt("Year") + "-" + FormUtil.readInt("Month") + "-"
+ FormUtil.readInt("Day")));
String input = FormUtil.readString("Purchase Contract(P) / Tenancy Contract(T)");
String input = FormUtil.readString("Purchase Contract(P) / Tenancy Contract(T)");
boolean isTenancy = input.equals("T") || input.equals("t");
if (isTenancy) {
boolean apartmentsAvailable = printListOfApartments();
@ -572,8 +574,7 @@ public class Main {
long duration = endDate.getTime() - startDate.getTime();
tenancyContract.setDuration(Duration.ofMillis(duration));
tenancyContract.setAdditionalCost(FormUtil.readInt("Additional Costs"));
}
else {
} else {
boolean housesAvailable = printListOfHouses();
if (!housesAvailable) {
System.out.println("No houses available to sell.");
@ -598,7 +599,7 @@ public class Main {
for (Object o : persons) {
Person person = (Person) o;
System.out.println("ID: " + person.getId() + ", Name: " + person.getFirstName() + " " + person.getName()
System.out.println("ID: " + person.getId() + ", Name: " + person.getFirstName() + " " + person.getName()
+ " , Address: " + person.getAddress());
}
System.out.println("------------------");
@ -610,7 +611,7 @@ public class Main {
* @return true if houses are available, false otherwise
*/
private static boolean printListOfHouses() {
List<?> houses = _orm.getAll(Type.HOUSE);
List<?> houses = _orm.getAll(Type.HOUSE);
List<Integer> soldHouses = _orm.getSoldHouses();
if (houses.size() <= soldHouses.size()) {
@ -639,7 +640,7 @@ public class Main {
* @return true if apartments are available, false otherwise
*/
private static boolean printListOfApartments() {
List<?> apartments = _orm.getAll(Type.APARTMENT);
List<?> apartments = _orm.getAll(Type.APARTMENT);
List<Integer> rentedApartments = _orm.getRentedApartments();
if (apartments.size() <= rentedApartments.size()) {
return false;
@ -654,7 +655,8 @@ public class Main {
continue;
}
System.out.println("ID: " + apartment.getId() + "; Address: " + apartment.getStreet() + " "
+ apartment.getStreetNumber() + ", " + apartment.getPostalCode() + " " + apartment.getCity());
+ apartment.getStreetNumber() + ", " + apartment.getPostalCode() + " " +
apartment.getCity());
}
System.out.println("------------------");
@ -665,8 +667,8 @@ public class Main {
* Shows the contracts overview.
*/
private static void showContractsOverview() {
List<?> contracts = _orm.getAll(Type.CONTRACT);
Menu listContracts = new Menu("Select a contract to view the details");
List<?> contracts = _orm.getAll(Type.CONTRACT);
Menu listContracts = new Menu("Select a contract to view the details");
final int BACK = 0;
@ -678,7 +680,7 @@ public class Main {
listContracts.addEntry("Back to the Contract management menu", BACK);
// process input
while(true) {
while (true) {
int response = listContracts.show();
switch (response) {
@ -694,7 +696,8 @@ public class Main {
/**
* Prints the contract details to command line.
*
* @param contract the contract from which the details should be printed to commandline
* @param contract
* the contract from which the details should be printed to commandline
*/
private static void printContractDetails(Contract contract) {
System.out.println("------------------");
@ -711,8 +714,7 @@ public class Main {
estate = _orm.getEstate(purchaseContract.getHouse());
System.out.println("House: " + estate.getStreet() + " " + estate.getStreetNumber() + ", "
+ estate.getPostalCode() + " " + estate.getCity());
}
else if (contract instanceof TenancyContract) {
} else if (contract instanceof TenancyContract) {
TenancyContract tenancyContract = (TenancyContract) contract;
Duration duration = tenancyContract.getDuration();
System.out.println("Start Date: " + DateFormat.getInstance().format(tenancyContract.getStartDate()));
@ -728,7 +730,8 @@ public class Main {
/**
* Shows a selected contract.
*
* @param id the id of the selected contract
* @param id
* the id of the selected contract
*/
private static void showContract(int id) {
Contract contract = _orm.getContract(id);

117
02/src/de/dis2017/Menu.java
View File

@ -7,17 +7,17 @@ import java.util.ArrayList;
/**
* Small helper class for menus.
*
* <p>
* First menu entries have to be created with addEntry. Afterwards the menu can be shown
* on the console with show(). show() also returns the constant number of the selected menu entry.
*
* <p>
* Example:
* Menu m = new Menu("Main menu");
* m.addEntry("Work hard", 0);
* m.addEntry("Rest", 1);
* m.addEntry("Go home", 2);
* int chosenOption = m.show();
*
* <p>
* This results in the following output on the console:
* Main menu:
* [1] Work hard
@ -26,61 +26,64 @@ import java.util.ArrayList;
* --
*/
class Menu {
private String _title;
private ArrayList<String> _labels = new ArrayList<>();
private ArrayList<Integer> _returnValues = new ArrayList<>();
/**
* Initializes the menu object.
private String _title;
private ArrayList<String> _labels = new ArrayList<>();
private ArrayList<Integer> _returnValues = new ArrayList<>();
/**
* Initializes the menu object.
*
* @param title Title of the menu (e.g. "Main menu")
*/
Menu(String title) {
super();
_title = title;
}
/**
* Adds a new menu entry
* @param title
* Title of the menu (e.g. "Main menu")
*/
Menu(String title) {
super();
_title = title;
}
/**
* Adds a new menu entry
*
* @param label Name of the entry
* @param returnValue constant number which is returned upon selection this entry
*/
void addEntry(String label, int returnValue) {
_labels.add(label);
_returnValues.add(returnValue);
}
/**
* Shows the menu.
* @param label
* Name of the entry
* @param returnValue
* constant number which is returned upon selection this entry
*/
void addEntry(String label, int returnValue) {
_labels.add(label);
_returnValues.add(returnValue);
}
/**
* Shows the menu.
*
* @return The constant number of the selected menu entry.
*/
int show() {
int selection = -1;
BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
while(selection == -1) {
System.out.println(_title+":");
for(int i = 0; i < _labels.size(); ++i) {
System.out.println("[" + (i + 1) + "] " + _labels.get(i));
}
System.out.print("-- ");
try {
selection = Integer.parseInt(stdin.readLine());
} catch (NumberFormatException | IOException e) {
e.printStackTrace();
}
if(selection < 1 || selection > _returnValues.size()) {
System.err.println("Invalid input!");
selection = -1;
}
}
return _returnValues.get(selection-1);
}
* @return The constant number of the selected menu entry.
*/
int show() {
int selection = -1;
BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
while (selection == -1) {
System.out.println(_title + ":");
for (int i = 0; i < _labels.size(); ++i) {
System.out.println("[" + (i + 1) + "] " + _labels.get(i));
}
System.out.print("-- ");
try {
selection = Integer.parseInt(stdin.readLine());
} catch (NumberFormatException | IOException e) {
e.printStackTrace();
}
if (selection < 1 || selection > _returnValues.size()) {
System.err.println("Invalid input!");
selection = -1;
}
}
return _returnValues.get(selection - 1);
}
}

111
02/src/de/dis2017/data/Apartment.java
View File

@ -1,54 +1,63 @@
package de.dis2017.data;
public class Apartment extends Estate{
private int floor;
private int rent;
private int rooms;
private boolean balcony;
private boolean builtinKitchen;
public Apartment(){
super();
}
public Apartment(Estate estate){
this.setId(estate.getId());
this.setCity(estate.getCity());
this.setPostalCode(estate.getPostalCode());
this.setStreet(estate.getStreet());
this.setStreetNumber(estate.getStreetNumber());
this.setSquareArea(estate.getSquareArea());
this.setAgent(estate.getAgent());
}
public int getFloor() {
return floor;
}
public void setFloor(int floor) {
this.floor = floor;
}
public int getRent() {
return rent;
}
public void setRent(int rent) {
this.rent = rent;
}
public int getRooms() {
return rooms;
}
public void setRooms(int rooms) {
this.rooms = rooms;
}
public boolean hasBalcony() {
return balcony;
}
public void setBalcony(boolean balcony) {
this.balcony = balcony;
}
public boolean hasBuiltinKitchen() {
return builtinKitchen;
}
public void setBuiltinKitchen(boolean builtinKitchen) {
this.builtinKitchen = builtinKitchen;
}
public class Apartment extends Estate {
private int floor;
private int rent;
private int rooms;
private boolean balcony;
private boolean builtinKitchen;
public Apartment() {
super();
}
public Apartment(Estate estate) {
this.setId(estate.getId());
this.setCity(estate.getCity());
this.setPostalCode(estate.getPostalCode());
this.setStreet(estate.getStreet());
this.setStreetNumber(estate.getStreetNumber());
this.setSquareArea(estate.getSquareArea());
this.setAgent(estate.getAgent());
}
public int getFloor() {
return floor;
}
public void setFloor(int floor) {
this.floor = floor;
}
public int getRent() {
return rent;
}
public void setRent(int rent) {
this.rent = rent;
}
public int getRooms() {
return rooms;
}
public void setRooms(int rooms) {
this.rooms = rooms;
}
public boolean hasBalcony() {
return balcony;
}
public void setBalcony(boolean balcony) {
this.balcony = balcony;
}
public boolean hasBuiltinKitchen() {
return builtinKitchen;
}
public void setBuiltinKitchen(boolean builtinKitchen) {
this.builtinKitchen = builtinKitchen;
}
}

81
02/src/de/dis2017/data/Contract.java
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@ -6,40 +6,49 @@ import java.sql.Date;
* Contract data class
*/
public class Contract {
private int contractNo = -1;
private Date date;
private String place;
private int person;
private int estate;
public int getEstate() {
return estate;
}
public void setEstate(int estate) {
this.estate = estate;
}
public int getContractNo() {
return contractNo;
}
public void setContractNo(int contractNo) {
this.contractNo = contractNo;
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public String getPlace() {
return place;
}
public void setPlace(String place) {
this.place = place;
}
public int getPerson() {
return person;
}
public void setPerson(int person) {
this.person = person;
}
private int contractNo = -1;
private Date date;
private String place;
private int person;
private int estate;
public int getEstate() {
return estate;
}
public void setEstate(int estate) {
this.estate = estate;
}
public int getContractNo() {
return contractNo;
}
public void setContractNo(int contractNo) {
this.contractNo = contractNo;
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public String getPlace() {
return place;
}
public void setPlace(String place) {
this.place = place;
}
public int getPerson() {
return person;
}
public void setPerson(int person) {
this.person = person;
}
}

118
02/src/de/dis2017/data/Estate.java
View File

@ -4,63 +4,63 @@ package de.dis2017.data;
* EstateAgent data class
*/
public class Estate {
private int id = -1;
private String city;
private String postalCode;
private String street;
private int streetNumber;
private int squareArea;
private int agent;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getPostalCode() {
return postalCode;
}
public void setPostalCode(String postalCode) {
this.postalCode = postalCode;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
public int getStreetNumber() {
return streetNumber;
}
public void setStreetNumber(int streetNumber) {
this.streetNumber = streetNumber;
}
public int getSquareArea() {
return squareArea;
}
public void setSquareArea(int squareArea) {
this.squareArea = squareArea;
}
public int getAgent() { return agent; }
public void setAgent(int agent) { this.agent = agent; }
private int id = -1;
private String city;
private String postalCode;
private String street;
private int streetNumber;
private int squareArea;
private int agent;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getPostalCode() {
return postalCode;
}
public void setPostalCode(String postalCode) {
this.postalCode = postalCode;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
public int getStreetNumber() {
return streetNumber;
}
public void setStreetNumber(int streetNumber) {
this.streetNumber = streetNumber;
}
public int getSquareArea() {
return squareArea;
}
public void setSquareArea(int squareArea) {
this.squareArea = squareArea;
}
public int getAgent() { return agent; }
public void setAgent(int agent) { this.agent = agent; }
}

90
02/src/de/dis2017/data/EstateAgent.java
View File

@ -4,49 +4,49 @@ package de.dis2017.data;
* EstateAgent data class
*/
public class EstateAgent {
private int id = -1;
private String name;
private String address;
private String login;
private String password;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getLogin() {
return login;
}
public void setLogin(String login) {
this.login = login;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
private int id = -1;
private String name;
private String address;
private String login;
private String password;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getLogin() {
return login;
}
public void setLogin(String login) {
this.login = login;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}

81
02/src/de/dis2017/data/House.java
View File

@ -1,42 +1,47 @@
package de.dis2017.data;
public class House extends Estate {
private int floors;
private int price;
private boolean garden;
public House(){
super();
}
public House(Estate estate){
this.setId(estate.getId());
this.setCity(estate.getCity());
this.setPostalCode(estate.getPostalCode());
this.setStreet(estate.getStreet());
this.setStreetNumber(estate.getStreetNumber());
this.setSquareArea(estate.getSquareArea());
this.setAgent(estate.getAgent());
}
public int getFloors() {
return floors;
}
public void setFloors(int floors) {
this.floors = floors;
}
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}
public boolean hasGarden() {
return garden;
}
public void setGarden(boolean garden) {
this.garden = garden;
}
private int floors;
private int price;
private boolean garden;
public House() {
super();
}
public House(Estate estate) {
this.setId(estate.getId());
this.setCity(estate.getCity());
this.setPostalCode(estate.getPostalCode());
this.setStreet(estate.getStreet());
this.setStreetNumber(estate.getStreetNumber());
this.setSquareArea(estate.getSquareArea());
this.setAgent(estate.getAgent());
}
public int getFloors() {
return floors;
}
public void setFloors(int floors) {
this.floors = floors;
}
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}
public boolean hasGarden() {
return garden;
}
public void setGarden(boolean garden) {
this.garden = garden;
}
}

61
02/src/de/dis2017/data/Person.java
View File

@ -1,31 +1,38 @@
package de.dis2017.data;
public class Person {
private int id = -1;
private String firstName;
private String name;
private String address;
public int getId() { return id; }
public void setId(int id) { this.id = id; }
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String adress) {
this.address = adress;
}
private int id = -1;
private String firstName;
private String name;
private String address;
public int getId() { return id; }
public void setId(int id) { this.id = id; }
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String adress) {
this.address = adress;
}
}

73
02/src/de/dis2017/data/PurchaseContract.java
View File

@ -1,40 +1,41 @@
package de.dis2017.data;
public class PurchaseContract extends Contract {
private int noOfInstallments;
private int interestRate;
public PurchaseContract(){
super();
}
public PurchaseContract(Contract contract){
this.setContractNo(contract.getContractNo());
this.setDate(contract.getDate());
this.setPlace(contract.getPlace());
this.setPerson(contract.getPerson());
}
public int getNoOfInstallments() {
return noOfInstallments;
}
public void setNoOfInstallments(int noOfInstallments) {
this.noOfInstallments = noOfInstallments;
}
public int getInterestRate() {
return interestRate;
}
public void setInterestRate(int interestRate) {
this.interestRate = interestRate;
}
public int getHouse() {
return super.getEstate();
}
public void setHouse(int house) {
super.setEstate(house);
}
private int noOfInstallments;
private int interestRate;
public PurchaseContract() {
super();
}
public PurchaseContract(Contract contract) {
this.setContractNo(contract.getContractNo());
this.setDate(contract.getDate());
this.setPlace(contract.getPlace());
this.setPerson(contract.getPerson());
}
public int getNoOfInstallments() {
return noOfInstallments;
}
public void setNoOfInstallments(int noOfInstallments) {
this.noOfInstallments = noOfInstallments;
}
public int getInterestRate() {
return interestRate;
}
public void setInterestRate(int interestRate) {
this.interestRate = interestRate;
}
public int getHouse() {
return super.getEstate();
}
public void setHouse(int house) {
super.setEstate(house);
}
}

92
02/src/de/dis2017/data/TenancyContract.java
View File

@ -5,54 +5,54 @@ import java.time.Duration;
import java.util.Date;
public class TenancyContract extends Contract {
private Timestamp startDate;
private Duration duration;
private int additionalCost;
public TenancyContract(){
super();
}
public TenancyContract(Contract contract){
this.setContractNo(contract.getContractNo());
this.setDate(contract.getDate());
this.setPlace(contract.getPlace());
this.setPerson(contract.getPerson());
}
public Timestamp getStartDate() {
return startDate;
}
public void setStartDate(Date startDate) {
this.startDate = new Timestamp(startDate.getTime());
}
public Duration getDuration() {
return duration;
}
public void setDuration(Duration duration) {
this.duration = duration;
}
private Timestamp startDate;
private Duration duration;
private int additionalCost;
public TenancyContract() {
super();
}
public TenancyContract(Contract contract) {
this.setContractNo(contract.getContractNo());
this.setDate(contract.getDate());
this.setPlace(contract.getPlace());
this.setPerson(contract.getPerson());
}
public Timestamp getStartDate() {
return startDate;
}
public void setStartDate(Date startDate) {
this.startDate = new Timestamp(startDate.getTime());
}
public Duration getDuration() {
return duration;
}
public void setDuration(Duration duration) {
this.duration = duration;
}
public void setDuration(Timestamp duration) {
this.duration = Duration.ofMillis(duration.getTime());
}
public int getAdditionalCost() {
return additionalCost;
}
public void setAdditionalCost(int additionalCost) {
this.additionalCost = additionalCost;
}
public int getApartment() {
return super.getEstate();
}
public void setApartment(int apartment) {
super.setEstate(apartment);
}
public int getAdditionalCost() {
return additionalCost;
}
public void setAdditionalCost(int additionalCost) {
this.additionalCost = additionalCost;
}
public int getApartment() {
return super.getEstate();
}
public void setApartment(int apartment) {
super.setEstate(apartment);
}
}

108
02/src/de/dis2017/data/db/DB2ConnectionManager.java
View File

@ -12,62 +12,62 @@ import java.util.Properties;
/**
* Singleton for management of database connections
*
*
* @author Michael von Riegen
* @version April 2009
*/
class DB2ConnectionManager {
// instance of Driver Manager
private static DB2ConnectionManager _instance = null;
// DB2 connection
private Connection _con;
/**
* Initializes database connection
*/
private DB2ConnectionManager() {
try {
// load properties from db2.properties file
Properties properties = new Properties();
URL url = ClassLoader.getSystemResource("db2.properties");
FileInputStream stream = new FileInputStream(new File(url.toURI()));
properties.load(stream);
stream.close();
String jdbcUser = properties.getProperty("jdbc_user");
String jdbcPass = properties.getProperty("jdbc_pass");
String jdbcUrl = properties.getProperty("jdbc_url");
// created connection to DB2 database
Class.forName("com.ibm.db2.jcc.DB2Driver");
_con = DriverManager.getConnection(jdbcUrl, jdbcUser, jdbcPass);
} catch (IOException | ClassNotFoundException | SQLException | URISyntaxException e){
e.printStackTrace();
}
}
/**
* Returns the instance of the connection manager
*
* @return DB2ConnectionManager
*/
static DB2ConnectionManager getInstance() {
if (_instance == null) {
_instance = new DB2ConnectionManager();
}
return _instance;
}
/**
* Returns the connection to the DB2 database
*
* @return Connection
*/
Connection getConnection() {
return _con;
}
// instance of Driver Manager
private static DB2ConnectionManager _instance = null;
// DB2 connection
private Connection _con;
/**
* Initializes database connection
*/
private DB2ConnectionManager() {
try {
// load properties from db2.properties file
Properties properties = new Properties();
URL url = ClassLoader.getSystemResource("db2.properties");
FileInputStream stream = new FileInputStream(new File(url.toURI()));
properties.load(stream);
stream.close();
String jdbcUser = properties.getProperty("jdbc_user");
String jdbcPass = properties.getProperty("jdbc_pass");
String jdbcUrl = properties.getProperty("jdbc_url");
// created connection to DB2 database
Class.forName("com.ibm.db2.jcc.DB2Driver");
_con = DriverManager.getConnection(jdbcUrl, jdbcUser, jdbcPass);
} catch (IOException | ClassNotFoundException | SQLException | URISyntaxException e) {
e.printStackTrace();
}
}
/**
* Returns the instance of the connection manager
*
* @return DB2ConnectionManager
*/
static DB2ConnectionManager getInstance() {
if (_instance == null) {
_instance = new DB2ConnectionManager();
}
return _instance;
}
/**
* Returns the connection to the DB2 database
*
* @return Connection
*/
Connection getConnection() {
return _con;
}
}

245
02/src/de/dis2017/data/db/ORM.java
View File

@ -23,11 +23,11 @@ public class ORM {
private Connection _connection;
private Map<Integer, EstateAgent> _agents;
private Map<String, EstateAgent> _agentsUsername;
private Map<Integer, Estate> _estates;
private Map<Integer, Contract> _contracts;
private Map<Integer, Person> _persons;
private Map<String, EstateAgent> _agentsUsername;
private Map<Integer, Estate> _estates;
private Map<Integer, Contract> _contracts;
private Map<Integer, Person> _persons;
/**
* Initializes the ORM.
@ -45,7 +45,8 @@ public class ORM {
/**
* Loads all objects from the database and returns a list of them.
*
* @param objectType the type of objects to load
* @param objectType
* the type of objects to load
* @return a list of objects
*/
public List<?> getAll(Type objectType) {
@ -54,7 +55,7 @@ public class ORM {
// create query
String selectSQL = "SELECT * FROM " + objectType.name();
PreparedStatement pstmt = _connection.prepareStatement(selectSQL);
// execute query
ResultSet rs = pstmt.executeQuery();
switch (objectType) {
@ -84,7 +85,7 @@ public class ORM {
} catch (SQLException e) {
e.printStackTrace();
}
return objects;
}
@ -139,13 +140,16 @@ public class ORM {
/**
* Process a select all query for estates.
*
* @param rs the result set of such a query
* @param rs
* the result set of such a query
* @return a list of estates
* @throws SQLException when an error occurs during the rs.next call
*
* @throws SQLException
* when an error occurs during the rs.next call
*/
private List<Estate> processEstates(ResultSet rs) throws SQLException {
List<Estate> estates = new ArrayList<>();
while (rs.next()) {
Estate estate = new Estate();
estate.setId(rs.getInt("ID"));
@ -155,7 +159,7 @@ public class ORM {
estate.setStreetNumber(rs.getInt("streetNumber"));
estate.setSquareArea(rs.getInt("squareArea"));
estate.setAgent(rs.getInt("agent"));
estates.add(estate);
}
@ -165,13 +169,17 @@ public class ORM {
/**
* Process a select all query for houses.
*
* @param rs the result set of such a query
* @param estates a list of estates
* @param rs
* the result set of such a query
* @param estates
* a list of estates
* @return a list of houses
* @throws SQLException when an error occurs during the rs.next call
*
* @throws SQLException
* when an error occurs during the rs.next call
*/
private List<House> processHouses(ResultSet rs, List<?> estates) throws SQLException {
List<House> houses = new ArrayList<>();
List<House> houses = new ArrayList<>();
Map<Integer, House> housesMap = new HashMap<>();
while (rs.next()) {
@ -205,13 +213,17 @@ public class ORM {
/**
* Process a select all query for houses.
*
* @param rs the result set of such a query
* @param estates a list of estates
* @param rs
* the result set of such a query
* @param estates
* a list of estates
* @return a list of houses
* @throws SQLException when an error occurs during the rs.next call
*
* @throws SQLException
* when an error occurs during the rs.next call
*/
private List<Apartment> processApartments(ResultSet rs, List<?> estates) throws SQLException {
List<Apartment> apartments = new ArrayList<>();
List<Apartment> apartments = new ArrayList<>();
Map<Integer, Apartment> apartmentsMap = new HashMap<>();
while (rs.next()) {
@ -247,9 +259,12 @@ public class ORM {
/**
* Processes a select all query for estate agents.
*
* @param rs the result set of such a query
* @param rs
* the result set of such a query
* @return a list of agents
* @throws SQLException when an error occurs during the rs.next call
*
* @throws SQLException
* when an error occurs during the rs.next call
*/
private List<EstateAgent> processAgents(ResultSet rs) throws SQLException {
List<EstateAgent> agents = new ArrayList<>();
@ -260,7 +275,7 @@ public class ORM {
agent.setAddress(rs.getString("address"));
agent.setLogin(rs.getString("login"));
agent.setPassword(rs.getString("password"));
_agents.put(agent.getId(), agent);
_agentsUsername.put(agent.getLogin(), agent);
agents.add(agent);
@ -272,9 +287,12 @@ public class ORM {
/**
* Process a select all query for contracts.
*
* @param rs the result set of such a query
* @param rs
* the result set of such a query
* @return a list of contracts
* @throws SQLException when an error occurs during the rs.next call
*
* @throws SQLException
* when an error occurs during the rs.next call
*/
private List<Contract> processContracts(ResultSet rs) throws SQLException {
List<Contract> contracts = new ArrayList<>();
@ -294,9 +312,12 @@ public class ORM {
/**
* Process a select all query for persons.
*
* @param rs the result set of such a query
* @param rs
* the result set of such a query
* @return a list of persons
* @throws SQLException when an error occurs during the rs.next call
*
* @throws SQLException
* when an error occurs during the rs.next call
*/
private List<Person> processPersons(ResultSet rs) throws SQLException {
List<Person> persons = new ArrayList<>();
@ -317,7 +338,8 @@ public class ORM {
/**
* Loads the contract with the given ID from database and returns the corresponding object.
*
* @param ID the id of the contract to load
* @param ID
* the id of the contract to load
* @return the Contract or null if there is no such object
*/
public Contract getContract(int ID) {
@ -325,25 +347,25 @@ public class ORM {
return _contracts.get(ID);
}
String selectSQLPurchase = "SELECT * FROM PURCHASECONTRACT " +
"LEFT JOIN CONTRACT ON PURCHASECONTRACT.CONTRACTNUMBER = CONTRACT.CONTRACTNUMBER " +
"LEFT JOIN SALES ON PURCHASECONTRACT.CONTRACTNUMBER = SALES.CONTRACTNUMBER " +
"WHERE PURCHASECONTRACT.CONTRACTNUMBER = ?";
String selectSQLPurchase = "SELECT * FROM PURCHASECONTRACT " +
"LEFT JOIN CONTRACT ON PURCHASECONTRACT.CONTRACTNUMBER = CONTRACT.CONTRACTNUMBER " +
"LEFT JOIN SALES ON PURCHASECONTRACT.CONTRACTNUMBER = SALES.CONTRACTNUMBER " +
"WHERE PURCHASECONTRACT.CONTRACTNUMBER = ?";
String selectSQLTenancy = "SELECT * FROM TENANCYCONTRACT " +
"LEFT JOIN CONTRACT ON TENANCYCONTRACT.CONTRACTNUMBER = CONTRACT.CONTRACTNUMBER " +
"LEFT JOIN RENTALS ON TENANCYCONTRACT.CONTRACTNUMBER = RENTALS.CONTRACTNUMBER " +
"WHERE TENANCYCONTRACT.CONTRACTNUMBER = ?";
String countPurchase = "SELECT COUNT(contractNumber) AS count FROM PURCHASECONTRACT WHERE contractNumber = ?";
String countTenancy = "SELECT COUNT(contractNumber) AS count FROM TENANCYCONTRACT WHERE contractNumber = ?";
String countTenancy = "SELECT COUNT(contractNumber) AS count FROM TENANCYCONTRACT WHERE contractNumber = ?";
try {
// try purchase contract first
PreparedStatement preparedStatementCount = _connection.prepareStatement(countPurchase);
preparedStatementCount.setInt(1, ID);
ResultSet rs = preparedStatementCount.executeQuery();
rs.next();
int count = rs.getInt("count");
String type = "None";
int count = rs.getInt("count");
String type = "None";
if (count == 0) {
// try tenancy contract next
preparedStatementCount = _connection.prepareStatement(countTenancy);
@ -354,15 +376,14 @@ public class ORM {
if (count == 1) {
type = "TenancyContract";
}
}
else {
} else {
type = "PurchaseContract";
}
rs.close();
preparedStatementCount.close();
PreparedStatement pstmt;
Contract contract;
Contract contract;
switch (type) {
case "PurchaseContract":
pstmt = _connection.prepareStatement(selectSQLPurchase);
@ -414,20 +435,21 @@ public class ORM {
/**
* Loads the estate with the given ID from database and returns the corresponding object.
*
* @param ID the id of the estate to load
* @param ID
* the id of the estate to load
* @return the Estate or null if there is no such object
*/
public Estate getEstate(int ID) {
if (_estates.containsKey(ID)) {
return _estates.get(ID);
}
String selectSQLHouse = "SELECT * FROM HOUSE LEFT JOIN ESTATE ON HOUSE.ID = ESTATE.ID " +
"WHERE HOUSE.ID = ?";
String selectSQLHouse = "SELECT * FROM HOUSE LEFT JOIN ESTATE ON HOUSE.ID = ESTATE.ID " +
"WHERE HOUSE.ID = ?";
String selectSQLApartment = "SELECT * FROM APARTMENT LEFT JOIN ESTATE ON APARTMENT.ID = ESTATE.ID " +
"WHERE APARTMENT.ID = ?";
String countHouse = "SELECT COUNT(ID) AS count FROM HOUSE WHERE ID = ?";
String countHouse = "SELECT COUNT(ID) AS count FROM HOUSE WHERE ID = ?";
String countApartment = "SELECT COUNT(ID) AS count FROM APARTMENT WHERE ID = ?";
try {
// try house first
@ -435,8 +457,8 @@ public class ORM {
preparedStatementCount.setInt(1, ID);
ResultSet rs = preparedStatementCount.executeQuery();
rs.next();
int count = rs.getInt("count");
String type = "None";
int count = rs.getInt("count");
String type = "None";
if (count == 0) {
// try apartment next
preparedStatementCount = _connection.prepareStatement(countApartment);
@ -447,15 +469,14 @@ public class ORM {
if (count == 1) {
type = "Apartment";
}
}
else {
} else {
type = "House";
}
rs.close();
preparedStatementCount.close();
PreparedStatement pstmt;
Estate estate;
Estate estate;
switch (type) {
case "House":
pstmt = _connection.prepareStatement(selectSQLHouse);
@ -472,7 +493,7 @@ public class ORM {
default:
return null;
}
if (rs.next()) {
estate.setId(ID);
estate.setCity(rs.getString("city"));
@ -494,7 +515,7 @@ public class ORM {
((Apartment) estate).setBalcony(rs.getBoolean("balcony"));
((Apartment) estate).setBuiltinKitchen(rs.getBoolean("builtInKitchen"));
}
rs.close();
pstmt.close();
_estates.put(ID, estate);
@ -511,7 +532,8 @@ public class ORM {
/**
* Loads the estate agent with the given ID from database and returns the corresponding object.
*
* @param ID the ID of the agent to load
* @param ID
* the ID of the agent to load
* @return the EstateAgent or null if there is no such agent
*/
public EstateAgent getAgent(int ID) {
@ -524,7 +546,7 @@ public class ORM {
String selectSQL = "SELECT * FROM ESTATEAGENT WHERE ID = ?";
PreparedStatement pstmt = _connection.prepareStatement(selectSQL);
pstmt.setInt(1, ID);
return getAgent(pstmt);
} catch (SQLException e) {
e.printStackTrace();
@ -536,7 +558,8 @@ public class ORM {
/**
* Loads the person with the given ID from database and returns the corresponding object.
*
* @param ID the ID of the person to load
* @param ID
* the ID of the person to load
* @return the Person or null if there is no such agent
*/
public Person getPerson(int ID) {
@ -550,7 +573,7 @@ public class ORM {
PreparedStatement pstmt = _connection.prepareStatement(selectSQL);
pstmt.setInt(1, ID);
ResultSet rs = pstmt.executeQuery();
Person person;
Person person;
if (rs.next()) {
person = new Person();
@ -576,7 +599,8 @@ public class ORM {
/**
* Loads the estate agent with the given username from database and returns the corresponding object,
*
* @param username the username of the estate agent
* @param username
* the username of the estate agent
* @return the EstateAgent or null if there is no such agent
*/
public EstateAgent getAgent(String username) {
@ -601,12 +625,12 @@ public class ORM {
/**
* Executes the given statement and returns an estate agent.
*
* @param pstmt the prepared statement with parameters already set
* @param pstmt
* the prepared statement with parameters already set
* @return the EstateAgent or null
*/
@Nullable
private EstateAgent getAgent(PreparedStatement pstmt)
{
private EstateAgent getAgent(PreparedStatement pstmt) {
try {
// execute query
ResultSet rs = pstmt.executeQuery();
@ -618,10 +642,10 @@ public class ORM {
agent.setAddress(rs.getString("address"));
agent.setLogin(rs.getString("login"));
agent.setPassword(rs.getString("password"));
rs.close();
pstmt.close();
_agents.put(agent.getId(), agent);
_agentsUsername.put(agent.getLogin(), agent);
return agent;
@ -636,10 +660,10 @@ public class ORM {
/**
* Deletes the given agent from the database.
*
* @param agent the agent that should be deleted
* @param agent
* the agent that should be deleted
*/
public void delete(EstateAgent agent)
{
public void delete(EstateAgent agent) {
if (agent.getId() == -1) {
System.err.println("This agent is not yet persisted to the database and cannot be deleted.");
return;
@ -659,7 +683,8 @@ public class ORM {
/**
* Deletes an estate from the database.
*
* @param estate the estate to be deleted
* @param estate
* the estate to be deleted
*/
public void delete(Estate estate) {
if (estate.getId() == -1) {
@ -682,15 +707,16 @@ public class ORM {
/**
* Deletes an object from the database.
*
* @param sql the sql used for deletion
* @param id the id of the object to be deleted
* @param sql
* the sql used for deletion
* @param id
* the id of the object to be deleted
*/
private void delete(String sql, int id)
{
private void delete(String sql, int id) {
try {
PreparedStatement pstmt = _connection.prepareStatement(sql);
pstmt.setInt(1, id);
// execute query
pstmt.executeUpdate();
pstmt.close();
@ -702,13 +728,14 @@ public class ORM {
/**
* Persists the given agent.
*
* @param agent the agent that should be persisted
* @param agent
* the agent that should be persisted
*/
public void persist(EstateAgent agent)
{
public void persist(EstateAgent agent) {
try {
if (agent.getId() == -1) {
String insertSQL = "INSERT INTO ESTATEAGENT (name, address, login, password) VALUES (?, ?, ?, ?)";
String insertSQL
= "INSERT INTO ESTATEAGENT (name, address, login, password) VALUES (?, ?, ?, ?)";
PreparedStatement pstmt = _connection.prepareStatement(insertSQL, Statement.RETURN_GENERATED_KEYS);
pstmt.setString(1, agent.getName());
@ -716,7 +743,7 @@ public class ORM {
pstmt.setString(3, agent.getLogin());
pstmt.setString(4, agent.getPassword());
pstmt.executeUpdate();
ResultSet rs = pstmt.getGeneratedKeys();
if (rs.next()) {
agent.setId(rs.getInt(1));
@ -726,13 +753,13 @@ public class ORM {
pstmt.close();
} else {
// create query
String updateSQL = "UPDATE ESTATEAGENT SET name = ?, address = ?, password = ? WHERE ID = ?";
PreparedStatement pstmt = _connection.prepareStatement(updateSQL);
String updateSQL = "UPDATE ESTATEAGENT SET name = ?, address = ?, password = ? WHERE ID = ?";
PreparedStatement pstmt = _connection.prepareStatement(updateSQL);
pstmt.setString(1, agent.getName());
pstmt.setString(2, agent.getAddress());
pstmt.setString(3, agent.getPassword());
pstmt.setInt(4, agent.getId());
// execute query
pstmt.executeUpdate();
pstmt.close();
@ -751,10 +778,10 @@ public class ORM {
/**
* Persists the given estate.
*
* @param estate the estate that should be persisted
* @param estate
* the estate that should be persisted
*/
public void persist(Estate estate)
{
public void persist(Estate estate) {
boolean changeFinished = false;
try {
_connection.setAutoCommit(false);
@ -778,9 +805,10 @@ public class ORM {
pstmt.close();
if (estate instanceof House) {
House house = (House) estate;
String insertSQLHouse = "INSERT INTO HOUSE (ID, price, garden, floors) VALUES (?, ?, ?, ?)";
PreparedStatement pstmtHouse = _connection.prepareStatement(insertSQLHouse);
House house = (House) estate;
String insertSQLHouse
= "INSERT INTO HOUSE (ID, price, garden, floors) VALUES (?, ?, ?, ?)";
PreparedStatement pstmtHouse = _connection.prepareStatement(insertSQLHouse);
pstmtHouse.setInt(1, house.getId());
pstmtHouse.setInt(2, house.getPrice());
pstmtHouse.setInt(3, house.hasGarden() ? 1 : 0);
@ -790,11 +818,11 @@ public class ORM {
pstmt.close();
pstmtHouse.close();
changeFinished = true;
}
else if (estate instanceof Apartment) {
} else if (estate instanceof Apartment) {
Apartment apartment = (Apartment) estate;
String insertSQLApartment = "INSERT INTO APARTMENT (ID, floor, rent, rooms, balcony, builtInKitchen) " +
"VALUES (?, ?, ?, ?, ?, ?)";
String insertSQLApartment =
"INSERT INTO APARTMENT (ID, floor, rent, rooms, balcony, builtInKitchen) " +
"VALUES (?, ?, ?, ?, ?, ?)";
PreparedStatement pstmtApartment = _connection.prepareStatement(insertSQLApartment);
pstmtApartment.setInt(1, apartment.getId());
pstmtApartment.setInt(2, apartment.getFloor());
@ -822,9 +850,10 @@ public class ORM {
pstmt.setInt(7, estate.getId());
if (estate instanceof House) {
House house = (House) estate;
String updateSQLHouse = "UPDATE HOUSE SET floors = ?, garden = ?, price = ? WHERE ID = ?";
PreparedStatement pstmtHouse = _connection.prepareStatement(updateSQLHouse);
House house = (House) estate;
String updateSQLHouse
= "UPDATE HOUSE SET floors = ?, garden = ?, price = ? WHERE ID = ?";
PreparedStatement pstmtHouse = _connection.prepareStatement(updateSQLHouse);
pstmtHouse.setInt(1, house.getFloors());
pstmtHouse.setInt(2, house.hasGarden() ? 1 : 0);
pstmtHouse.setInt(3, house.getPrice());
@ -834,8 +863,7 @@ public class ORM {
pstmt.close();
pstmtHouse.close();
changeFinished = true;
}
else if (estate instanceof Apartment) {
} else if (estate instanceof Apartment) {
Apartment apartment = (Apartment) estate;
String updateSQLApartment = "UPDATE APARTMENT SET floor = ?, rent = ?, rooms = ?, " +
"balcony = ?, builtInKitchen = ? WHERE ID = ?";
@ -873,10 +901,10 @@ public class ORM {
/**
* Persists the given contract.
*
* @param contract the contract that should be persisted
* @param contract
* the contract that should be persisted
*/
public void persist(Contract contract)
{
public void persist(Contract contract) {
boolean changeFinished = false;
try {
_connection.setAutoCommit(false);
@ -907,7 +935,8 @@ public class ORM {
pstmtPurchase.executeUpdate();
pstmtPurchase.close();
String insertSQLSale = "INSERT INTO SALES (contractNumber, house, person) VALUES (?, ?, ?)";
String insertSQLSale
= "INSERT INTO SALES (contractNumber, house, person) VALUES (?, ?, ?)";
PreparedStatement pstmtSale = _connection.prepareStatement(insertSQLSale);
pstmtSale.setInt(1, purchaseContract.getContractNo());
pstmtSale.setInt(2, purchaseContract.getHouse());
@ -915,8 +944,7 @@ public class ORM {
pstmtSale.executeUpdate();
pstmtSale.close();
changeFinished = true;
}
else if (contract instanceof TenancyContract) {
} else if (contract instanceof TenancyContract) {
TenancyContract tenancyContract = (TenancyContract) contract;
String insertSQLTenancyContract = "INSERT INTO TENANCYCONTRACT " +
"(contractNumber, startDate, duration, additionalCosts) " +
@ -928,8 +956,9 @@ public class ORM {
pstmtTenancy.setInt(4, tenancyContract.getAdditionalCost());
pstmtTenancy.executeUpdate();
pstmtTenancy.close();
String insertSQLRental = "INSERT INTO RENTALS (contractNumber, apartment, person) VALUES (?, ?, ?)";
String insertSQLRental
= "INSERT INTO RENTALS (contractNumber, apartment, person) VALUES (?, ?, ?)";
PreparedStatement pstmtRental = _connection.prepareStatement(insertSQLRental);
pstmtRental.setInt(1, tenancyContract.getContractNo());
pstmtRental.setInt(2, tenancyContract.getApartment());
@ -961,14 +990,14 @@ public class ORM {
/**
* Persists the given person.
*
* @param person the person that should be persisted
* @param person
* the person that should be persisted
*/
public void persist(Person person)
{
public void persist(Person person) {
try {
if (person.getId() == -1) {
String insertSQL = "INSERT INTO PERSON (firstName, name, address) VALUES (?, ?, ?)";
PreparedStatement pstmt = _connection.prepareStatement(insertSQL, Statement.RETURN_GENERATED_KEYS);
String insertSQL = "INSERT INTO PERSON (firstName, name, address) VALUES (?, ?, ?)";
PreparedStatement pstmt = _connection.prepareStatement(insertSQL, Statement.RETURN_GENERATED_KEYS);
pstmt.setString(1, person.getFirstName());
pstmt.setString(2, person.getName());
@ -984,8 +1013,8 @@ public class ORM {
pstmt.close();
} else {
// create query
String updateSQL = "UPDATE PERSON SET firstName = ?, name = ?, address = ? WHERE ID = ?";
PreparedStatement pstmt = _connection.prepareStatement(updateSQL);
String updateSQL = "UPDATE PERSON SET firstName = ?, name = ?, address = ? WHERE ID = ?";
PreparedStatement pstmt = _connection.prepareStatement(updateSQL);
pstmt.setString(1, person.getFirstName());
pstmt.setString(2, person.getName());
pstmt.setString(3, person.getAddress());