CGS4854 Homework 4

Due Friday 4/19 (late 4/20 at 6am)

If you had any errors in the previous homework, then fix them, so that you don't lose points twice for the same mistake.

Apache

Start your Apache server.

Modify the style sheet from previous assignment.
Limit access to the styles directory to you and to me. Limit access before you create your style sheet. I do not want anyone but you and me to be able to see your style sheet at any time.

Change the default style for the entire page.
- Change the color of the text.
- Change the color of the background.
- Change the font-family. Use at least three possible fonts; the last font in the list should be a generic font family. Do not include more than one generic font family in the list.
Change the default style for the input and select tags.
- Use a serif font.
  - Use the font-family tag.
  - Choose at least two specific fonts and a generic font.
  - The last option in the list of fonts should be for the generic fantasy font.
  - Make the font twice as large as the default font. Use a relative measurement.
- Change the text color.
- Change the background color.
Change the default style for the cite tag.
- Use a relative size to make the size of the text 10% smaller than the body font. If the font is tiny, then you did something wrong.
- Use a different background color.
Create a style named alert that can only be used with cite tags.
- Use a relative size to make the size of the text 25% larger than the body font. Make sure you didn't make it smaller.
- Underline the text.
- Make the text bold.
Change the default ordering that is used for ol tags.
- Do not change the style for any li tags.
- Do not create a named style.
- Choose one of upper-roman, lower-roman, upper-alpha, lower-alpha.
Change the default ordering for nested ol tags (ol tags inside ol tags).
- Do not change the style for any li tags.
- Do not create a named style.
- Choose one of upper-roman, lower-roman, upper-alpha, lower-alpha, decimal (different from the ol ordering).
Create a style named indented that can only be used with paragraphs.
- Set the right margin. Use a relative measurement based on the height of the letter 'M'.
- Set the left margin. Use a relative measurement baes on the height of the letter 'x'.
Change the default styles for h1 and h2 tags.
- h1 and h2 headings should use a different font than the body. Use the font-family attribute and specify a very specific font, a more common font and a generic font. All of these must be different from the default fonts for the page.
- h1 and h2 headings should have center alignment.
- Change h1 headings as:
  - Make each letter upper case.
  - Change the background image.
  - Be sure the text color contrasts with the background image.
  - Turn on underline.
- Change h2 headings as:
  - Capitalized first letters for each word in the heading
  - Turn off the default bold style.
  - Change the text color.
  - Turn on italic.
Change the default style for unvisited hypertext links.
- Change the text color.
- Change the background-color.
- Turn off the underline.
- Make the font 4/5 the size of the the body font. Use a relative measurement.
Change the default style for visited hypertext links.
- Change the text color.
- Change the background-color.
- The other changes to the unvisited style will also cascade to this style.

Use the style sheet in all pages that can be accessed from Apache, including error pages and all the files for your username web application on Tomcat (except the manager).
Modify the docRoot/index.html file.
- Add some headings.
  - Create one h1 heading at the top of the page.
  - Use several h2 headings in the page. Place one before each of your paragraphs in the page. Make sure your paragraphs contain enough text so that the margin size can be observered.
  - Do not use a heading for an entire paragraph.
  - A heading should contain just a few words.
- Use several cite tags throughout the page.
- Use the alert style several times in the page.
- Use the indented style on one of the paragraphs.
- Add a nested, ordered list of webapps and error links.
  - The outer list should have two items: Web Apps and Errors.
  - Web Apps will have an inner list for the links to the manager and username webapps (and tutorials, if you have them).
  - Errors will have an inner list for the links that cause errors (not found and forbidden) and the link to the error folder.
Modify the error pages.
- Each error page should use the stylesheet.
- Add a heading to each page containing the error code
- Add a small image to each error page. Use a link from the root of the server, so the images will appear from anywhere in the site.

Complex Persistent Controller

Create a new package for this assignment in your username web app. Step-by-step instructions for the Complex Persistent Controller are available on the book's web site.

Do not change the files that were used for assignment 3.
- Assignment 3 should still be accessible from the web app.
- You may copy files from assignment 3 into this new package.
- You may import files from assignment 3, if they are unchanged.
Modify your application so that it can initialize and store complex form elements.
- Add all the necessary files to the shared package.
- Note that HellperBaseCh6 should be placed in the shared package.
- Add all the necessary JAR files to the Libraries folder.

Bean

Place the bean in the same package as the controller.
Add annotations so that the bean can be saved to a database.
- Annotate the class so that it can be saved to its own table.
- Add a key field to the bean or extend it from PersistentBase.
- Mark any properties that only have accessors so that they are not saved to the database.
You have a choice of new properties to add:
- You may add a radio group and a multiple selection list.
- You may add a checkbox group and a single selection list.
- If you want to add even more properties, you may; however, you must implement at least the two that I have specified in the choices above.
Add annotations:
- Mark any properties that return arrays so that they can be saved to the database in a separate table.
- Add annotations for radio groups, checkbox groups and select lists so that they can be initialized easily in a JSP.
The bean should implement required validation.
- The name of the bean class should be different than the name for the bean in Extra Credit 5 and Homework 3.
- Continue to implement all the validations from HW3.
- Validate that at least two options from the checkbox group or multiple selection list have been chosen.
  - Look at the Hibernate validations. There is one there that can help you.
  - Remember that these types of elements are nullable: if nothing is checked or selected, then there will be nothing in the query string. You will also need to validate that it is not null (size 0 is not the same as null).
- Validate that the radio group or single selection list has a valid option.
  - If the associated property in the bean is numeric, then use min and max to validate the range of the value.
  - If the associated property in the bean is a string, then user a regular expression to validate it. Validate that it matches one of the string values in the associated form element in the JSP. You will also need to validate that it is not null (size 0 is not the same as null).
- For each field that is to be validated, display information in the web page that indicates the correct format of the data to be entered.
- For all the other fields, you must implement either required validation or default validation.

Controller Helper

Use a unique name, other than "helper" and different than the one for Tutorial 5, to save the controller helper in the session.
Change the name of the accessor for the bean to something other than getData.
Modify jspLocation so that it returns the correct path for JSPs.
Write the current record to the database when the process button is clicked.
- Do not retrieve records in this method.
- Write an information message to the log file containing the id of the record that is being written to the database.
Add a button method for the view page (described below). Read the records from the database and make them available in the request for next JSP.
- Do not save to the database in this method.
- Write a debug message to the log file that contains the number of records that were retrieved from the database.
- Write a warning message to the log file if no records were retrieved from the database.
Treat GET requests as the start of a new transaction.
- Always show the edit page when a GET request is made.
- Do not read the old data from the session when a GET request is made.
Treat POST requests as the continuation of a transaction.
- Show the appropriate page based on the button that was clicked.
- Read the old data from the session and copy it into the bean.
Use a name other than "database" to store the database records in the request.
When you are debugging your application, set the log level to debug. When you submit the assignment, change the log level to error.

JSPs

There should be no hidden fields in any of the JSPs.
Use the Apache style sheet for all your JSPs.
The JSPs should be in a hidden directory, but not in the same directory as the controller. Move the JSPs to an appropriate subdirectory of WEB-INF (not under classes).
Modify all the EL statements so that they refer to the new name that you used to store the helper in the session and the new name you used for the bean accessor.
Modify Edit.jsp
- Use a table to organize the input elements so that they appear in orderly columns. Place all the labels in one column and all the input boxes in the second column.
- Be sure that your new input elements are initialized with the values from the bean.
- Display error messages for all properties that are not valid. Place all error messages inside a cite tag with the class set to alert. The errors should stand out on the page, based on your style sheet.
- Be sure that your new input elements are initialized with the values from the bean. This means that radio groups and check box groups should be checked according to the values that are in the bean; the same is true for selection lists.
Modify the confirm page.
- Use the cite tag to display the values from the bean.
- Use nested ordered lists to display all the data in the bean. Those elements that return arrays will use the inner nested list to display all its values.
Modify Process.jsp.
- Use the cite tag to display the values from the bean.
- Use nested ordered list to display all the data in the bean. Those elements that return arrays will use the inner nested list to display all its values.
- Only display the current record from the bean.
- Do not display all the records from the database in this page.
- If you do not have one, add a button that returns to the edit page to start a new request. When the edit page appears, the current values should NOT appear in the input elements.
- Add a button that sends the user to the view page.
Add a new page named View.jsp.
- Use a table to display all the data from the database.
  - The first row in the database should use a th tag for each column name.
  - Use an unordered list to display those elements that have multiple values.
- Add a button that returns to the edit page so the user can change the values that were just saved. When the edit page appears, the current values should appear in the input elements in the page.
- Add a button that returns to the edit page to start a new request. When the edit page appears, the current values should NOT appear in the input elements.

Be sure there is a hypertext link in the index.jsp page to the controller. Use a relative link.

The web app must use the secure web.xml file and should only allow you and me to access your application: Edit tomcat users

Be sure to modify the project so that the .java files are placed in the WAR file: Configuring WAR File

After the app is running in NetBeans, upload it and run it on ocelot: Uploading a WAR file

Submitting the Assignment

Clean and Build your web application. After doing this, navigate to the WAR file in NetBeans and verify that the .java files are included: View WAR File

Since you are using a log file that is in the web application, you will need to shut down Tomcat before you can do a Clean and Build.
Open the Services (Runtime in 5.5) folder and open the Servers folder.
Right-click the Tomcat server and select Stop.
Now you can do a Clean and Build.

In the operating system (not in NetBeans) navigate to the dist folder in the NetBeans project.

Deploy the WAR file on ocelot: Deploy a WAR File

After deploying, open the WEB-INF/logs directory in winscp or on ocelot.
Change the permission of the error.log file to 606. This will allow Tomcat to write to the file.
Use the manager to stop your web application and then start it again. This will force it to reread the web.xml file so that the logger can be initialized.
Access your application and visit all the pages, then verify that some new messages have been added to the log file.

To hand in the assignment, zip the following directories into one ZIP file and upload it.

Please delete your old ZIP file that you used to submit homework.
rm ~/username.zip
Replacing username with your user name.
Please use the following command to compress your cgs4854/webapps/username folder.
zip -r ~/username ~/cgs4854/webapps/username -x \*.jar \*.zip \*.war
Replacing username with your user name. This will create a file named username.zip. It contains the username web application.
Please use the following command to compress your cgs4854/serverRoot folder.
zip -r ~/username ~/cgs4854/serverRoot -x \*.jar \*.zip \*.war
Replacing username with your user name. This will add the serverRoot folder to username.zip.
Please use the following command to compress your cgs4854/docRoot folder.
zip -r ~/username ~/cgs4854/docRoot -x \*.jar \*.zip \*.war
Replacing username with your user name. This will add the docRoot folder to username.zip.
Check the size of the ZIP file, it should be less than 3 MB. If it is not, then you probably have another ZIP file stored in the ZIP archive. Delete it and re-zip.
You then have a choice for submitting the file.
- If you are logged onto ocelot, use my uploading program to upload the file. Enter this command at the command prompt:
  ~downeyt/cs/public/webftp/webftp.pl
- If you are using winscp, then download the zip file to your computer; then, upload the file to me: Submitting homework on-line via the Web.
Upload the file as binary.

Be sure that all your files and subdirectories are included in the zip file.
After uploading, do not modify your files on ocelot until after your assignment has been graded.