ThugBorean/Projektutvecklingslab
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Imbus 2024-02-14 19:58:12 +01:00
parent dae126f721
commit 66ff5c2efd
6 changed files with 242 additions and 224 deletions
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21
src/main/java/launch/Main.java
View file

@ -22,7 +22,8 @@ public class Main {
private static File getRootFolder() {
try {
File root;
String runningJarPath = Main.class.getProtectionDomain().getCodeSource().getLocation().toURI().getPath().replaceAll("\\\\", "/");
String runningJarPath = Main.class.getProtectionDomain().getCodeSource().getLocation().toURI().getPath()
.replaceAll("\\\\", "/");
int lastIndexOf = runningJarPath.lastIndexOf("/target/");
if (lastIndexOf < 0) {
root = new File("");
@ -63,8 +64,8 @@ public class Main {
Path tempPath = Files.createTempDirectory("tomcat-base-dir");
tomcat.setBaseDir(tempPath.toString());
//The port that we should run on can be set into an environment variable
//Look for that variable and default to 8080 if it isn't there.
// The port that we should run on can be set into an environment variable
// Look for that variable and default to 8080 if it isn't there.
String webPort = System.getenv("PORT");
if (webPort == null || webPort.isEmpty()) {
webPort = "8080";
@ -79,7 +80,8 @@ public class Main {
}
StandardContext ctx = (StandardContext) tomcat.addWebapp("", webContentFolder.getAbsolutePath());
ctx.setDocBase(webContentFolder.getAbsolutePath() + File.separator + "static");
//Set execution independent of current thread context classloader (compatibility with exec:java mojo)
// Set execution independent of current thread context classloader
// (compatibility with exec:java mojo)
ctx.setParentClassLoader(Main.class.getClassLoader());
System.out.println("configuring app with basedir: " + webContentFolder.getAbsolutePath());
@ -91,16 +93,19 @@ public class Main {
WebResourceSet resourceSet;
if (additionWebInfClassesFolder.exists()) {
resourceSet = new DirResourceSet(resources, "/WEB-INF/classes", additionWebInfClassesFolder.getAbsolutePath(), "/");
System.out.println("loading WEB-INF resources from as '" + additionWebInfClassesFolder.getAbsolutePath() + "'");
resourceSet = new DirResourceSet(resources, "/WEB-INF/classes",
additionWebInfClassesFolder.getAbsolutePath(), "/");
System.out.println(
"loading WEB-INF resources from as '" + additionWebInfClassesFolder.getAbsolutePath() + "'");
} else {
resourceSet = new EmptyResourceSet(resources);
}
resources.addPreResources(resourceSet);
resources.addPreResources(new DirResourceSet(resources, "/WEB-INF/jsp", webContentFolder.getAbsolutePath() + File.separator + "jsp", "/"));
resources.addPreResources(new DirResourceSet(resources, "/WEB-INF/jsp",
webContentFolder.getAbsolutePath() + File.separator + "jsp", "/"));
ctx.setResources(resources);
tomcat.getConnector();
tomcat.start();
System.out.println("Listening to port " + webPort);

1
src/main/java/model/HelloJspViewModel.java
View file

@ -4,6 +4,7 @@ import java.util.List;
public class HelloJspViewModel {
private final List<Integer> data;
public HelloJspViewModel(List<Integer> data) {
this.data = data;
}

120
src/main/java/servlet/Dump.java
View file

@ -10,103 +10,111 @@ import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Survey.
*/
@WebServlet("/Dump")
public class Dump extends HttpServlet {
private static final long serialVersionUID = 1L;
// Define states
// Define states
private static final int NEED_NAME = 0;
private static final int NEED_PROJECT_DATA = 2;
private FormGenerator formGenerator = new FormGenerator();
/**
* Default constructor.
*/
public Dump() {
}
/*
* Checks first if name includes characters (i.e. is longer than zero characters) and then
* if so if the name is possible to add to
* the database. It is not possible to add an already existing name to the database.
*/
boolean nameOk(Database db, String name){
boolean result = !name.equals("");
if (result) result = db.addName(name);
return result;
}
boolean answerOk(Database db, String answerOne, String answerTwo, String answerThree, String answerFour) {
boolean result = !answerOne.equals("") && !answerTwo.equals("") && !answerThree.equals("") && !answerFour.equals("");
if(result) result = db.addAnswer(answerFour, answerOne, answerTwo, answerThree, answerFour);
return result;
}
/*
* Checks if a value entered as answer is OK. Answers should be between 1 and 10.
*/
boolean valueOk(int value){
return value > 0 && value <11;
}
protected boolean updateAnswers(String answerOne, String answerTwo) {
return true;
}
private FormGenerator formGenerator = new FormGenerator();
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
* Default constructor.
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// Try with resources to create a connection, will ensure close is always called.
try(Database db = new Database()) {
public Dump() {
}
/*
* Checks first if name includes characters (i.e. is longer than zero
* characters) and then
* if so if the name is possible to add to
* the database. It is not possible to add an already existing name to the
* database.
*/
boolean nameOk(Database db, String name) {
boolean result = !name.equals("");
if (result)
result = db.addName(name);
return result;
}
boolean answerOk(Database db, String answerOne, String answerTwo, String answerThree, String answerFour) {
boolean result = !answerOne.equals("") && !answerTwo.equals("") && !answerThree.equals("")
&& !answerFour.equals("");
if (result)
result = db.addAnswer(answerFour, answerOne, answerTwo, answerThree, answerFour);
return result;
}
/*
* Checks if a value entered as answer is OK. Answers should be between 1 and
* 10.
*/
boolean valueOk(int value) {
return value > 0 && value < 11;
}
protected boolean updateAnswers(String answerOne, String answerTwo) {
return true;
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// Try with resources to create a connection, will ensure close is always
// called.
try (Database db = new Database()) {
// Get the session
HttpSession session = request.getSession(true);
int state = 0;
String name;
boolean sessionShouldBeEnded = false;
// Decide which state the session is in
if (session.isNew())
state = NEED_NAME;
else {
state = (Integer) session.getAttribute("state");
}
// Get a writer, which will be used to write the next page for the user
// Get a writer, which will be used to write the next page for the user
PrintWriter out = response.getWriter();
// Start the page, print the HTML header and start the body part of the page
out.println("<html>");
out.println("<head><title> FANTASTIC WEB APPLICATION </title></head>");
out.println("<body>");
// Save the state in the session until next time doGet is requested
session.setAttribute("state", state);
// Print the end of the HTML-page
out.println("</body></html>");
if (sessionShouldBeEnded)
session.invalidate();
} catch(SQLException ex) {
session.invalidate();
} catch (SQLException ex) {
// If Database.close for any reason fails.
throw new ServletException(ex);
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}

85
src/main/java/servlet/FormGenerator.java
View file

@ -1,60 +1,59 @@
package servlet;
/*
* This class provides forms to be displayed to the user
*/
public class FormGenerator {
private String formElement(String par) {
return '"' + par + '"';
}
/*
* Form for requesting user name
*/
public String nameRequestForm() {
String html = "Please enter your name";
html += "<p> <form name=" + formElement("input");
//html += " action=" + formElement(myURL);
html += " method=" + formElement("get");
html += "<p> Name: <input type=" + formElement("text") + " name=" + formElement("user") + '>';
html += "<p> <input type=" + formElement("submit") + "value=" + formElement("Submit") + '>';
return html;
}
private String formElement(String par) {
return '"' + par + '"';
}
/*
* Form for requesting user name
*/
public String nameRequestForm() {
String html = "Please enter your name";
html += "<p> <form name=" + formElement("input");
// html += " action=" + formElement(myURL);
html += " method=" + formElement("get");
html += "<p> Name: <input type=" + formElement("text") + " name=" + formElement("user") + '>';
html += "<p> <input type=" + formElement("submit") + "value=" + formElement("Submit") + '>';
return html;
}
public String projectDetailsRequestForm() {
String[][] variables = {{"Project Name", "proj_name"}, {"Project Description", "proj_desc"}};
String html = "<p>Please give us some information about your project";
String[][] variables = { { "Project Name", "proj_name" }, { "Project Description", "proj_desc" } };
String html = "<p>Please give us some information about your project";
html += "<p> <form name=" + formElement("input");
html += " method=" + formElement("get");
for (int i=0; i<2; i++) {
for (int i = 0; i < 2; i++) {
html += "<p> " + variables[i][0];
html += ": <input type="+ formElement("text") + "name =" + variables[i][1] + '>';
html += ": <input type=" + formElement("text") + "name =" + variables[i][1] + '>';
}
html += "<p> <input type=" + formElement("submit") + "value=" + formElement("Submit") + '>';
return html;
}
/*
* Form for requesting success with respect to four factors
*/
public String projectDataRequestForm() {
String[][] variables = {
{ "Met operational performance", "s11" },
{ "Met technical performance", "s12" },
{ "Met project schedule", "s13" },
{ "Stayed on budget", "s14" } };
String html = "<p>Please assess the importance of the following factors (1-10, where 1 is least important)";
html += "<p> <form name=" + formElement("input2");
html += " method=" + formElement("get");
// html += " action=" + formElement(myURL);
for (int i = 0; i < 4; i++) {
html += "<p> " + variables[i][0];
html += ": <input type=" + formElement("text") + "name =" + variables[i][1] + '>';
}
html += "<p> <input type=" + formElement("submit") + "value=" + formElement("Submit") + '>';
return html;
}
/*
* Form for requesting success with respect to four factors
*/
public String projectDataRequestForm() {
String[][] variables = {
{"Met operational performance", "s11"},
{"Met technical performance", "s12"},
{"Met project schedule", "s13"},
{"Stayed on budget", "s14"}};
String html = "<p>Please assess the importance of the following factors (1-10, where 1 is least important)";
html += "<p> <form name=" + formElement("input2");
html += " method=" + formElement("get");
//html += " action=" + formElement(myURL);
for (int i=0; i<4; i++) {
html += "<p> " + variables[i][0];
html += ": <input type="+ formElement("text") + "name =" + variables[i][1] + '>';
}
html += "<p> <input type=" + formElement("submit") + "value=" + formElement("Submit") + '>';
return html;
}
}

8
src/main/java/servlet/HelloJsp.java
View file

@ -14,12 +14,12 @@ import java.util.*;
public class HelloJsp extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
RequestDispatcher requestDispatcher = this.getServletContext().getRequestDispatcher("/WEB-INF/jsp/example.jsp");
req.setAttribute("simple", "example");
req.setAttribute("complex", new model.HelloJspViewModel(List.of(5,4,3,2,1)));
req.setAttribute("complex", new model.HelloJspViewModel(List.of(5, 4, 3, 2, 1)));
requestDispatcher.include(req, resp);
}
}

231
src/main/java/servlet/Survey.java
View file

@ -10,165 +10,170 @@ import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Survey.
*/
@WebServlet("/Survey")
public class Survey extends HttpServlet {
private static final long serialVersionUID = 1L;
// Define states
// Define states
private static final int NEED_NAME = 0;
private static final int NEED_PROJECT_INFO = 1;
private static final int NEED_PROJECT_DATA = 2;
private FormGenerator formGenerator = new FormGenerator();
/**
* Default constructor.
*/
public Survey() {
}
/*
* Checks first if name includes characters (i.e. is longer than zero characters) and then
* if so if the name is possible to add to
* the database. It is not possible to add an already existing name to the database.
*/
boolean nameOk(Database db, String name){
boolean result = !name.equals("");
if (result)
result = db.addName(name);
return result;
}
/*
* Checks if a value entered as answer is OK. Answers should be between 1 and 10.
*/
boolean valueOk(int value){
return value > 0 && value <11;
}
private FormGenerator formGenerator = new FormGenerator();
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
* Default constructor.
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// Try with resources to create a connection, will ensure close is always called.
try(Database db = new Database()) {
public Survey() {
}
/*
* Checks first if name includes characters (i.e. is longer than zero
* characters) and then
* if so if the name is possible to add to
* the database. It is not possible to add an already existing name to the
* database.
*/
boolean nameOk(Database db, String name) {
boolean result = !name.equals("");
if (result)
result = db.addName(name);
return result;
}
/*
* Checks if a value entered as answer is OK. Answers should be between 1 and
* 10.
*/
boolean valueOk(int value) {
return value > 0 && value < 11;
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// Try with resources to create a connection, will ensure close is always
// called.
try (Database db = new Database()) {
// Get the session
HttpSession session = request.getSession(true);
int state = 0;
String name;
boolean sessionShouldBeEnded = false;
// Decide which state the session is in
if (session.isNew())
state = NEED_NAME;
else {
state = (Integer) session.getAttribute("state");
}
// Get a writer, which will be used to write the next page for the user
// Get a writer, which will be used to write the next page for the user
PrintWriter out = response.getWriter();
// Start the page, print the HTML header and start the body part of the page
out.println("<html>");
out.println("<head><title> FANTASTIC WEB APPLICATION </title></head>");
out.println("<body>");
switch (state){
case NEED_NAME: // First state: get user name
name = request.getParameter("user"); // get the string that the user entered in the form
if (name != null) {
if (nameOk(db, name)) {
session.setAttribute("name", name); // save the name in the session
state = NEED_PROJECT_INFO;
switch (state) {
case NEED_NAME: // First state: get user name
name = request.getParameter("user"); // get the string that the user entered in the form
if (name != null) {
if (nameOk(db, name)) {
session.setAttribute("name", name); // save the name in the session
state = NEED_PROJECT_INFO;
out.println(formGenerator.projectDetailsRequestForm());
} else {
out.println("That was not a valid name. Maybe it is already taken by someone else.");
out.println(formGenerator.nameRequestForm());
}
} else { // name was null, probably because no form has been filled out yet. Display
// form.
out.println(formGenerator.nameRequestForm());
}
break;
case NEED_PROJECT_INFO:
name = (String) session.getAttribute("name");
String description = request.getParameter("proj_desc");
String proj_name = request.getParameter("proj_name");
System.out.println("description: " + description);
if (description != null) {
state = NEED_PROJECT_DATA;
db.addProjectDetails(proj_name, description);
out.println(formGenerator.projectDataRequestForm());
} else {
out.println(formGenerator.projectDetailsRequestForm());
}
break;
case NEED_PROJECT_DATA:
int s11 = 0, s12 = 0, s13 = 0, s14 = 0;
name = (String) session.getAttribute("name");
String s11String = request.getParameter("s11");
String s14String = request.getParameter("s14");
String s12String = request.getParameter("s12");
String s13String = request.getParameter("s13");
if (s11String == null)
out.println(formGenerator.projectDataRequestForm()); // first time
else {
out.println("That was not a valid name. Maybe it is already taken by someone else.");
out.println(formGenerator.nameRequestForm());
}
}else{ // name was null, probably because no form has been filled out yet. Display form.
out.println(formGenerator.nameRequestForm());
}
break;
case NEED_PROJECT_INFO:
name = (String) session.getAttribute("name");
String description = request.getParameter("proj_desc");
String proj_name = request.getParameter("proj_name");
System.out.println("description: " + description);
if (description != null) {
state = NEED_PROJECT_DATA;
db.addProjectDetails(proj_name, description);
out.println(formGenerator.projectDataRequestForm());
} else {
out.println(formGenerator.projectDetailsRequestForm());
}
break;
case NEED_PROJECT_DATA:
int s11 = 0, s12 = 0, s13 = 0, s14 = 0;
name = (String) session.getAttribute("name");
String s11String = request.getParameter("s11");
String s14String = request.getParameter("s14");
String s12String = request.getParameter("s12");
String s13String = request.getParameter("s13");
if (s11String==null)
out.println(formGenerator.projectDataRequestForm()); // first time
else {
boolean valuesOk = true;
try {
s11 = Integer.parseInt(s11String);
s12 = Integer.parseInt(s12String);
s13 = Integer.parseInt(s13String);
s14 = Integer.parseInt(s14String);
boolean valuesOk = true;
try {
s11 = Integer.parseInt(s11String);
s12 = Integer.parseInt(s12String);
s13 = Integer.parseInt(s13String);
s14 = Integer.parseInt(s14String);
String str = s11String+s12String+s13String;
} catch (NumberFormatException e) {
valuesOk = false;
String str = s11String + s12String + s13String;
} catch (NumberFormatException e) {
valuesOk = false;
}
valuesOk = valuesOk && valueOk(s11) && valueOk(s12) && valueOk(s13) && valueOk(s14);
// display the next page
if (valuesOk) {
int sum = s11 + s12 + s13 + s14;
db.addAnswer(name, s11String, s12String, s13String, s14String);
// This is only to show that it is possible to do something with the values.
// It is of course meaningless to calculate the sum.
out.println("<p> Hello " + name);
out.println("<p> The sum of the values you entered is " + sum);
sessionShouldBeEnded = true;
} else {
out.println("The values you entered were not OK");
out.println(formGenerator.projectDataRequestForm());
}
}
valuesOk = valuesOk && valueOk(s11) && valueOk(s12) && valueOk(s13) && valueOk(s14);
// display the next page
if (valuesOk){
int sum = s11 + s12 + s13 + s14;
db.addAnswer(name, s11String, s12String, s13String, s14String);
// This is only to show that it is possible to do something with the values.
// It is of course meaningless to calculate the sum.
out.println("<p> Hello " + name);
out.println("<p> The sum of the values you entered is " + sum);
sessionShouldBeEnded = true;
} else {
out.println("The values you entered were not OK");
out.println(formGenerator.projectDataRequestForm());
}
}
break;
break;
}
// Save the state in the session until next time doGet is requested
session.setAttribute("state", state);
// Print the end of the HTML-page
out.println("</body></html>");
if (sessionShouldBeEnded)
session.invalidate();
} catch(SQLException ex) {
session.invalidate();
} catch (SQLException ex) {
// If Database.close for any reason fails.
throw new ServletException(ex);
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}