Speech Synthesizer Using Java TTS Library

1- Download The library (FreeTTS Speech library)
2- Unzip the files (mainly you will need only bin folder).
3- Add freetts.ja in lib directory into your classpath (or you can add them in Eclipse)
4- Write you Java program that will speak :)

Steps to Use mod_proxy_ajp to integrate Apache and Tomcat

Idea:


mod_proxy_ajp is a connector to connect Tomcat and Apache Httpd, it is activated from Apache Httpd. When it is activated the requests will be sent using AJP protocol into Tomcat and recieve results back.To test if the following steps works type the url that contains the folder you want to send its requests into Tomcat and the url has to change to the address given in the configuration (ajp).


Steps:

1.Enable the AJP connector for one or more tomcat installations by editing TOMCAT_HOME/conf/server.xml and uncommenting the AJP connector included with the default distribution:



2.uncomment the "LoadModule proxy_module ...." and "LoadModule proxy_ajp_module ...." in the file APACHE_HTTPD_HOME/conf/httpd.conf

3. Add the following lines

#The client makes ordinary requests for content in the name-space of the reverse proxy. The reverse proxy then decides where to send those requests, and returns the content as if it was itself the origin. a reverse proxy (using the ProxyPass directive with ProxyRequests Off)

<IfModule proxy_module>
ProxyRequests Off
#Activate reverse proxy
<Proxy *>
Order Deny,Allow
Allow from all
</Proxy>

ProxyPass /OATS ajp://localhost:8009/OATSMoodle
ProxyPassReverse /OATS ajp://localhost:8009/OATSMoodle

#OATS is which folder we will access in Apache in order to be passed into Tomcat address
Which is (OATSMoodle) in this case. When you type URL (or send requests) that contains OATS it will be send into "localhost:8080/OATSMoodle" which is the folder in Tomcat.
</IfModule>

Adding Perl CGI support into Apache server

Download ActivePerl from the internet

Modify the conf/httpd.con file in Apache


Add to the options in tag +ExecCGI, as follows


AcceptPathInfo On
Options FollowSymLinks +ExecCGI


Check that the file has

AddHandler cgi-script .cgi .pl


At the beginning of your program point where is your Perl executable are:

#!c:/program files/perl/bin/perl.exe

Just write your program and save it in .pl extension and access the file using

http://localhost/perlTest/hello.pl

Connecting Tomcat & Apache

Go the Tomcat Connectors (mod_jk) Downloads

mod_jk is a module that passes specific requests from Apache to Tomcat. Tomcat processes a request, and sends the response back through Apache.

Apache Tomcat JK 1.2.26 for WIN32

• mod_jk-1.2.26-apache-2.2.4.so is for Apache 2.2, and works with Apache 2.2.4 and later. Rename to mod_jk.so before putting it in your Apache2.2/modules directory.
• tells Apache that the module exists and where to find it using a LoadModule directive, in conf/httpd.conf file.
• The JkWorkersFile should point to the location of the file that specifies how mod_jk should connect to the Tomcat service and interact with the various worker processes created by Tomcat. tell Apache how to identify which Tomcat process to communicate and forward the request.

• JkWorkersFile /usr/local/apps/jakarta-tomcat-4/conf/workers.properties

• JkLogFile /usr/local/apache/logs/mod_jk.log
  
  JkLogLevel info
  
  JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "

• 
  

• The file contains
  

• workers.tomcat_home=/usr/local/apps/jakarta-tomcat-4
  
  workers.java_home=/usr/java1.4.1
  ps=/
  worker.list=ajp13
  worker.ajp13.port=8009
  worker.ajp13.host=localhost
  worker.ajp13.type=ajp13

That creates a connector called ajp13 (we'll need that in a minute), which is located on the local machine on port 8009. This is one of the standard ports listened to by Tomcat.

Forwarding Requests
The final step is to tell Apache which files should be assigned to Tomcat for processing and which of the workers to direct the request to. You do this using the JkMount directive, which effectively mounts a Tomcat worker process to a given file specification. For example, to redirect all requests for files ending in .jsp on this server to the worker identified as ajp13, you would use:

JkMount /*.jsp ajp13

The file specification uses Unix-like wildcard specifications, so we could have specified that all files be forwarded to Tomcat using:

JkMount /* ajp13

Testing it Out
To test out your installation, copy a suitable JSP or servlet into
your Web server directory and then try accessing it from a browser.
Remember that you must have both Tomcat and Apache running. Assuming
everything is working OK then you should get the desired result. If
there's an error, you'll need to check one of the various log files for
more information. To help you determine which one, look at the error
message reported in the browser.  

If the error was generated by Tomcat, then you need to check the Tomcat logs in the main Tomcat installation directory. It probably means either there is an error in your JSP or a class on which it relies or there is a problem with accessing the file in question. Because requests are forwarded to Tomcat immediately, a missing file will be reported by Tomcat, not Apache.

If it's an error generated by Apache, check the Apache logs and the mod_jk logs. If the error is reported in the mod_jk log, then it probably points to a problem with the configuration somewhere.

If you get an Internal Server Error from Apache, then check whether Tomcat is running before digging any deeper.

Ideas For Research

Ideas For Research

Create Website have all information about making the internet with Arabic contents accessible for everyone.

Accessibility for online museums

Voice guided Java 2 micro edition can be used to add programs to cell phones.

Apache Lenya : Open Source content managment system which output is accessible.

Dot Learn is and open source LMS

to make Java choose any natural language use (i18N).

www.esstt.rnu.tn/utic (webSign at university of Tunis)

How to setup your online course to fit your disability best.

Convert word,PDF into MP3 (www.read thewords.com)

Working Group in W3C, 4 hours per week

Adding rules for audio to read mathematical contents in a more meaningful way:

A^T (A transpose)
V^--> (vector V)

Firebug Ally accessibility extension

SUN open accessibility framework

it is hard for novice developer to remember all W3C, WCAG and section 508.

From the presentation of equation you can know what contents it presents and vice versa.

providing substitution within mathematical expression (replace complex sub-expressions with meaningful phrases) to give an overview of the equation.

Notes For My work

We need to have audio description while we move through different interfaces.

in human computer interaction Nielsen approach to evaluate user interface is the most useful one.

To identify cognitive learning styles use Felming and Mellis model.

Highlight has to start and end in space

Use ARIA for iframe to notify the user about the window when it appears

Ideas related to Data picker may be used to knwo how to make my iframe accessible.

To add web service to my work use Apache Axis

Latex in Windows

• download Tex distribution (usually MikTex (http://www.miktex.org/) )
• download and install the LeD latex editor

Using command line

• create using any text editor and save the file with extension (.tex)
• to create the div file that can be viewed use the command (latex file.tex)
• to convert div file into pdf (dvipdfm file.div)
• for Windows use the software MikTex

How to generate PDF file

if you want to convert the latex into pdf (in Miketex) it will not recognize the .eps pictures. You can press DVI-> PDF which will convert the file into pdf without the need to change all the picture files into png extension.

Using Led Editor

You will see the pdf result immediately on the right opf the screen, also you can click on the pdf to reach to specific pieces on the tex file.

Just press the green button (Latex Compilation)

How to use references file (bib) in LED editor?

Getting current Latex document to use your .bib file is not actually very difficult. At the end of your Latex file (that is, after the content, but before \end{document}, you need to place the following commands:

\bibliographystyle{plain}
\bibliography{sample}

where sample is sample.bib

Now in Led editor you never complie the .bib file, just the .tex file.

Open up the .tex file and compile it using Latex then compile it using Bibtex

You might then have to compile it again using Latex to finish the process.

Printing the URL Field

In order to printout URL’s, you can make use of the howpublished field. Try this: howpublished = {\url{http://texblog.wordpress.com}},
You will have to add the url-package to your tex-document: \usepackage{url}.

How to keep Capitalization in the title field?
surrounded by extra brackets to preserve the capitalization.without changing the way it appears in the bibliography. by adding extra curly brackets around some characters

How to Fix the problem of figures not shown in LED DVI viewer?

Check the gsdll32.dll path in LED->menu->Configuration->options->Application->DVI viewer->GSDL32.dll directory. Make sure that the path points to the right GSView bin directory.

Wrapping Figures

Although not normally the case in academic writing, an author may prefer that some floats do not break the flow of text, but instead allow text to wrap around it. (Obviously, this effect only looks decent when the figure in question is significantly narrower than the text width.) The package wrapfig was developed for this very task.

To use wrapfig, you must first add \usepackage{wrapfig} to the preamble. This then gives you access to the \begin{wrapfigure}{alignment}{width} command. Alignment can be either l for left, or r for right. The width is obviously the width of the figure. An example:

\begin{wrapfigure}{r}{40mm}
\begin{center}
\includegraphics{toucan.eps}
\end{center}
\caption{The Toucan}
\end{wrapfigure}




Make a folder tree myowntexmf\tex\latex\mystyles

Put the file in mystyles and then add myowntexmf as a new local root
in miktex settings.



Errors

1. "Misplaced alignment tab character &".

2. In LaTeX, the "&" character is used for tabbing (alignment) in certain environments, but it is not a legal character on its own; that is what the first line of the error message above is saying - that the character "&" is being used somewhere it shouldn't. Click "Go To Error" to go to the place where the compiler thinks there is an error in the editing window.

Increase Heap in Eclipse

From Eclipse
Project -> Properties->Run/Debug setting -> Edit ->Arguments ->VM arguments (-Xmx256M)

From command line
java -Xms32m -Xmx128m

In Tomcat

Edit bin/Catalania.bat add -Xmx256m to JAVA_OPTS

Eclipse + Servlet +Tomcat

For Tomcat version 6.0 and Eclipse version 3.3.0

You have to manually import context.xml from location
C:\Tomcat-6.0\conf\
to
MyWorkspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\conf
and then changes to
Context reloadable="true"
and
privileged="true"

Now how to run servlets on Eclipse:

1- New "Dynamic web Project"
2- new -> Target run time -> choose tomcat server and its main folder as the source path.
3- R-click on the project -> new ->servlet (no need to have package name)
4- R-click on the servelt Java file and Run-as server

For the servlet to work the class file has to be in
 /tomcat/webapps/project/web-inf/classes

and the HTML file (with FORM METHOD=GET ACTION="Hello"  , where Hello is the servlet name)can be in
 
 /tomcat/webapps/project/

You can have multiple servlets defined inside web.xml, each one will be inside the servet tag.

Servlets

1. Servlets are simply .class files, i.e., compiled .java files.
2. Servlet files are stored in the WEB-INF/classes subdirectory of the main web application directory. In this case the .class files for the examples web app is stored in %TOMCAT_HOME%/webapps/examples/WEB-INF/classes.
3. So when the user requests

   http://localhost:8080/examples/servlet/HelloWorldExample

   Tomcat runs

   %TOMCAT_HOME%/webapps/examples/WEB-INF/classes/HelloWorldExample.class

• Create a folder inside webppas of Tomcat server (star, for example)
  
• "\WEB-INF\classes" is the folder to keep Servlet class files
• 'web.xml' is saved in the '/WEB-INF' folder
• Compile command

javac -cp %CATALINA_HOME%\lib\servlet-api.jar TestServlet.java


The url to access the servlet , after starting Tomcat server

http://localhost:8080/star/TestServlet

------------------------------------------------
1- must run Tomcat server then try http://localhost:8080 to verify it works
2- There is a specific structure for the files
/webapps/myApp/WEB-INF/classes/ will contain java classes
/webapps/myApp/WEB-INF/src/ will contain the source
/webapps/myApp/script/ will contain other script code

3-assign your servlet class to a package, for example at the beginning of the Java file
package org.oats;


4- Need to tell were the servlets resides (the path classes) using web.xml
which is saved in /webapps/myApp/WEB-INF/web.xml



Ontology
Ontology


org.oats.OntologyServlet



Finally, again in the web.xml file, add:


Ontology


/Ontology



That says "When you see the URL /Ontology, call the Servlet name "Ontology",
which is mapped to the 'org.oats.OntologyServlet' class".


5- the two main methods to implement in servlets are doGet and doPost

Mod Python (using python in the web)

Mod_python is an Apache module that embeds the Python interpreter within the server. With mod_python you can write web-based applications in Python that will run many times faster than traditional CGI and will have access to advanced features such as ability to retain database connections and other data between hits and access to Apache internals.

ModPython

How to install:

1-Download binaries for windows
2-run the installer (must have installed Python and Apache server , with same versions compatabile with the version of modPython)
3- Choose place of where Python is installed
4- Add the line into conf/httpd.conf
LoadModule python_module modules/mod_python.so

5- Add the following as a new Directory tags in the file conf/httpd.conf (Directory is a tag < >)

Directory "E:\moodle\moodle\PythonTest"
AddHandler mod_python .py
PythonHandler mptest
PythonDebug On
/Directory

Now to test it create a file with .py inside the root of apache, it will execute the function with the name handler.

To Work With forms

PythonHandler mod_python.publisher

It will pass the form into the the .py file into the function name index(), with the same names of the fields.

How to use protege OWL API in Eclipse

1-Create Java Project
2-Goto Project->Properties-> Java Build Paths

Libraries tab, click add external JARS and go
inside Protege directory ->select all jar files.
inside Protege directory ->Plugins inside (edu.stanford.smi.protegex.owl) select all jar files.
Also
Select protege.api from /protege/


in Java code

import edu.stanford.smi.protegex.owl.ProtegeOWL;
import edu.stanford.smi.protegex.owl.model.*;

Tomcat With Eclipse

1- Install Eclipse JEE
2- Windows -> Preferences -> Java -> Installed JRE (must be the JDK folder)
3- Download “Sysdeo Tomcat Lanucher” and unzip the folder into “Eclipse\Plugins”
4- In the command line “eclipse –clean”
5- Window -> Preference -> Tomcat (Select version and home folder of Tomcat)

Installing Tomcat

Most people will just want to download the preconfigured Tomcat version, set JAVA_HOME and CLASSPATH, and they are done.

2. Set the JAVA_HOME Variable

Next, you must set the JAVA_HOME environment variable to tell Tomcat where to find Java. Failing to properly set this variable prevents Tomcat from compiling JSP pages. This variable should list the base JDK installation directory, not the bin subdirectory. For example, on almost any version of Windows, if you use JDK 1.5_08, you might put the following line in your C:\autoexec.bat file.

set JAVA_HOME=C:\Program Files\Java\jdk1.5.0_08


On Windows XP, you could also go to the Start menu, select Control Panel, choose System, click on the Advanced tab, press the Environment Variables button at the bottom, and enter the JAVA_HOME variable and value directly. On Windows 2000 and NT, you do Start, Settings, Control Panel, System, then Environment. However, you can use C:\autoexec.bat on those versions of Windows also (unless a system administrator h as set your PC to ignore it).

3. Set Your CLASSPATH

Since servlets and JSP are not part of the Java 2 platform, standard edition, you have to identify the servlet classes to the compiler. The server already knows about the servlet classes, but the compiler (i.e., javac) you use for development probably doesn't. So, if you don't set your CLASSPATH (either via an environment variable, an operating system setting, or an IDE setting), attempts to compile servlets, tag libraries, filters, Web app listeners, or other classes that use the servlet and JSP APIs will fail with error messages about unknown classes. Here are the standard Tomcat locations:

* install_dir/common/lib/servlet-api.jar
* install_dir/common/lib/jsp-api.jar

You need to include both files in your CLASSPATH.

Now, in addition to the servlet JAR file, you also need to put your development directory in the CLASSPATH. Although this is not necessary for simple packageless servlets, once you gain experience you will almost certainly use packages. Compiling a file that is in a package and that uses another class in a user-defined package requires the CLASSPATH to include the directory that is at the top of the package hierarchy. In this case, that's the development directory I just discussed. Forgetting this setting is perhaps the most common mistake made by beginning servlet programmers!

Finally, you should include "." (the current directory) in the CLASSPATH. Otherwise, you will only be able to compile packageless classes that are in the top-level development directory.

Here are two representative methods of setting the CLASSPATH. They assume that your development directory is C:\Servlets+JSP. Replace install_dir with the actual Tomcat installation path (e.g., C:\apache-tomcat-6.0.10). Also, be sure to use the appropriate case for the filenames, and enclose your pathnames in double quotes if they contain spaces.

Any Windows Version from Windows 98/Me Onward. Use the autoexec.bat file.

* Sample code: (Note that this all goes on one line with no spaces--it is broken here only for readability.)
set CLASSPATH=.;
C:\Servlets+JSP;
install_dir\common\lib\servlet-api.jar;
install_dir\common\lib\jsp-api.jar
* Sample file to download and modify: autoexec.bat

Note that these examples represent only one approach for setting the CLASSPATH. Many Java integrated development environments have global or project-specific settings that accomplish the same result. But these settings are totally IDE-specific and won't be discussed here. Another alternative is to make a .bat file or ant build script whereby -classpath ... is automatically appended onto calls to javac.

Windows NT/2000/XP. You could use the autoexec.bat file as above, or you can use system settings. On WinXP, go to the Start menu and select Control Panel, then System, then the Advanced tab, then the Environment Variables button. On Win2K/WinNT, go to the Start menu and select Settings, then Control Panel, then System, then Environment. Either way, enter the CLASSPATH value from the previous bullet.

Autoexec.bat
set PATH="C:\Program Files\Java\jdk1.5.0_08\bin";%PATH%
set JAVA_HOME=C:\Program Files\Java\jdk1.5.0_08
set CLASSPATH=.;C:\apache-tomcat-6.0.10\lib\servlet-api.jar;C:\apache-tomcat-6.0.10\lib\jsp-api.jar;C:\apache-tomcat-6.0.10\lib\el-api.jar;C:\Servlets+JSP;..;..\..

How to Import .SQL Dump File into MySQL

This tutorial goes through the steps of how to import a SQL script file into a MySQL database. The computer setup I'm using for this step-by-step guide includes Windows XP Professional and MySQL 5.0, however you should also be able to use this same process for importing SQL dump files with MySQL 4.1.

1. Open the MySQL Command Line Client and type in your password, and press Enter to login. See Figure 1.

2. Change to the database you want to use for importing the .sql file data into. Do this by typing

USE your_database_name

and press Enter. See Figure 2.

For example the full line would look like: mysql> USE myTestDatabase

3. Now locate the .sql file you want to execute. For instance if the file is located in the main local C: drive directory and the .sql script file name is currentSqlTable.sql, (See Figure 3) you would type the following:

\. C:\currentSqlTable.sql

and press Enter to execute the sql script file.

For example, the full line would look like: mysql> \. C:\ currentSqlTable.sql

Note: You can use either the source or \. command to execute a SQL script file. For instance:

mysql> source file_name
mysql> \. file_name

Ideas about tagging

Using Moodle we can add new features only by adding new modules (activities) or blocks. To add the new tagging feature for all facilities in Moodle this is not possible using these 2 features. Because currently tagging is only related with textfields defined from some place related to the tag defined (interests, blogs). We need to have a more intuitive way for adding new tags for every component in Moodle and to have it saved in some repository.

What happened when the user click on the tag button (delicious) on the tool bar of the explorer, we need to do similar thing from a link from inside the web page. This type of tagging will be only for the whole web page, but in order to tag specific parts of the web page we need something to specify that (keystroke when we reach specific part of the page, new menu item when mouse is clicked ). Remember that whatever you tag it will be one of two things (whole page, specific anchor link in the page).

Tag Cloud Ideas

how to make tag cloud accessible?

how many tags associated with each tag is presented or we can use a text that describe how popular is that tag.
we can just use classes to define the different sizes (we can identify there sizes explicitly using the class attribute).

use of an ordered list as the tag cloud structure, or play with voice volume when the font size changes.

screen reader user doesn't get when a size "step" has changed

sort by frequency is another solution.

Accessible Tags and Tag Clouds

It is important to make tags and tag clouds accessible, because they represent information about the use of this information amnog all users in the web.
To make tag cloud accessible we could make the screen reader read the tags according to the font size (not in the alphabetical order). Also it is important to provide the users with tags and related tags in an accessible way.
range of class names from not-popular through ultra-popular

1. 44 photos are tagged with 125 Shaftesbury Avenue


2. 2 photos are tagged with airline food


3. 344 photos are tagged with austin


4. 12 photos are tagged with bad joke



5. 52 photos are tagged with brighton


6. 12 photos are tagged with cowboy hat


7. 67 photos are tagged with fireworks


8. 2 photos are tagged with fozziebear



9. 85 photos are tagged with ironbridge



10. 12 photos are tagged with jukebox


11. 72 photos are tagged with leave a message


12. 26 photos are tagged with lego



13. 151 photos are tagged with London



14. 25 photos are tagged with microformats


15. 107 photos are tagged with Pub Standards


16. 355 photos are tagged with San Francisco



17. 194 photos are tagged with sxsw


18. 13 photos are tagged with The hair of Christian Heilmann



19. 1 photo is tagged with The reflection of the hair of Christian Heilmann


20. 2 photos are tagged with yaarrrrrrrrrrrrrrrrr

Moodle Tags

add dictionary and spell checker for the entered tags.

symbolic link linux

http://help.hardhathosting.com/question.php/95

What Are Screening Techniques?

Screening techniques are simple activities to help identify potential accessibility barriers in product designs. Most screening techniques involve interacting with a product with one or more physical or sensory abilities eliminated or modified; for example, wearing thick gloves to limit your dexterity, and wearing low vision glasses or blindfolds to limit your vision.

http://www.uiaccess.com/accessucd/screening.html

Moodle Demo

http://demo.moodle.org/

Setting up Eclipse to work on Moodle

http://docs.moodle.org/en/Development:Setting_up_Eclipse

ELGG, Social Networking

Elgg is an open-source social networking platform. It offers blogging, networking, community, collecting of news using feeds aggregation and file sharing features. Everything can be shared among users with access controls and everything can be cataloged by tags as well.
http://www.elgg.org/

Video: Add tag to moodle

http://www.youtube.com/watch?v=YwNuC3XkCQo

Plugins

Moodle has about 22 different types of plugins last time I counted. Plugins can generally be self-contained in a single directory containing scripts, images, stylesheets and language files all in one package that can be dropped into the Moodle script directory in the right place. After that the admin just needs to visit the admin page to install them.

Most plugins work in one of two ways, they either provide a lib.php filled with common functions and some scripts with standard names, or they subclass a proto-plugin and override a few method functions to achieve their goals.

The best way to learn is to pick an example from the core code that is similar to what you want to do and start playing with it. There are also some template plugins to help get you started.

Firefox Web Developer Extension

The Web Developer extension adds a menu and a toolbar to the browser with various web developer tools.
http://chrispederick.com/work/web-developer/

Fluid, improve accessibility of e-learning

What is Fluid?

Fluid is a worldwide collaborative project to help improve the usability and accessibility of community open source projects with a focus on academic software for universities. We are developing and will freely distribute a library of sharable customizable user interfaces designed to improve the user experience of web applications.

http://fluidproject.org/

Accessibilityy Evaluation

automatic tests, like Hera (http://www.sidar.org/hera/index.php.pt), W3C markup validation service (http://validator.w3.org/) and W3C CSS validation service (http://jigsaw.w3.org/css-validator).

For manual tests I used firefox web developer tool and fangs extension, as well as opera browser and screen reader jaws for windows.

Online Survey Managment system

http://www.makesurvey.net

The most popular folksonomy sites:

http://questsin.net/

http://www.flickr.com/

http://www.metafilter.com/

http://www.technorati.com/

http://del.icio.us/

Ideas

Having all the alt text of the images,acronym and video captions in a database of the web site and when we reuse the images we get the same alt text from that database.

wizard that will create a user profile in the database for each user, and it will be used to customize the settings of the system each time the user log into the system.

Screen reader

JAWS, some are using Blindows with Webformator and Thunder.