Friday, October 29, 2010
Wednesday, September 29, 2010
Career Path Finder...Highly informative
|
Friday, September 17, 2010
Going Green Begins At Home
A Beautiful Coffee
Monday, September 13, 2010
Saturday, September 04, 2010
Apache POI Cell Background Problem and Resolution
cell = currentRow.createCell(0); CellStyle cs = wb.createCellStyle(); cs.setFillForegroundColor(HSSFColor.ROSE.index); cs.setFillPattern(CellStyle.SOLID_FOREGROUND);
Monday, August 30, 2010
Monday, August 23, 2010
Handling DOJO FileUpload, JavaServlet and Cross Browser Issues
My use cases is as follows
2. Submit an AJAX Request to the Server and wait to receive an XML as response from server
3. Pick the request and handle it in Java Servlet
4. Send Response to the client
5. Handle the response and display the result in a text area
6. Handle IELets start of with Step 11. Design a form similar to this <form dojoType="dijit.form.Form" id="myForm" method="post" enctype="multipart/form-data">
<div>
<table width="100%">
<tr>
<td colspan="2">
<label class="firstLabel" for="name">Parameter 1</label>
<br>
<input type="text" id="url" name="url" style="width: 800px; padding-left: 0px" class="medium"
dojoType="dijit.form.ValidationTextBox"
required="true"
ucfirst="true" invalidMessage=""/>
</td>
</tr>
<tr>
<td id="uploadKeyStore" style="display:none;" >
<div id="uploadContainer" style="margin-top: 15px;">
<input type="hidden" name="MAX_FILE_SIZE" value="500000">
<!-- wrapping these in spans to be able to modify
parts of this form depending on what the
dojo.io.iframe.submit() does -->
<input type="file" class="medium" id="fileInput" name="uploadTestFile" style="width: 400px;">
</div>
<br/>
</td>
</tr>
</table>
</div> <div class="formAnswer">
<textarea style="width: 400px;height:500px" id="request" name="request" >
</textarea>
<textarea style="width: 400px; height:500px" id="response" name="response"></textarea>
</div>
<div dojoType="dijit.form.Button" id="start">
Submit
</div>
</form>
2. In your javascript make sure u add the following dojo.addOnLoad(function(){
dojo.query("#start").onclick(function(){
dojo.byId("response").value = "Waiting for the response.."
dojo.io.iframe.send({
url: this.url,
form : 'myForm',
method: "post",
handleAs: "xml",
"accept-charset" : "UTF-8",
enctype:"multipart/form-data",
handle: handleInitialResponse)
});
});
}
function handleInitialResponse(response){
//Code to be added
}3. Code the Java Servlet. I have used apache FileUpload library to do this as it offer facility to handle multiple types of request parameters Code example can be found in the apache site.
Important points to note when coding the servlet.
Your response type is very crucial.
If you choose to send response as plain text or html,
MAKE SURE YOU WRAP YOUR RESPONSE WITH A TEXT AREA BEFORE SENDING THE RESPONSE.
<textarea>[Your Response]</textarea>
response.setContentType("text/html");
This has serious limitation with IE7. Hence I would suggest not to go with this.
If you choose to send response as plain xml,
response.setContentType("text/xml");
NO NEED TO WRAP YOUR RESPONSE WITHIN A TEXT AREA
4. Handling the Servlet Response at the client keeping IE7 in mind Here comes the most trickest part.
If your response type is HTML, you are up for a party with IE7. I couldn't crack it and hence i worked around with xml. Make sure your handleAs element is "xml"
Define the response handler as below
function handleInitialResponse(response){
try {
// Gecko-based browsers, Safari, Opera.
dojo.byId("response").value = new XMLSerializer().serializeToString(response);
}
catch (e) {
try {
dojo.byId("response").value = response.xml ;
}
catch (e)
{//Strange Browser ??
alert('Xmlserializer not supported');
}
}
}
The code above is not compler friendly. Pls make sure you hit right basics to make the things work.
Saturday, August 14, 2010
Bottleneck
The pic below is not a car parking. The Grey block is the marker for the small lane which everyone in this pic trying to sneak into.. by the way i'm among the minority waiting in the actual route waiting sincerely for my turn.
Sunday, August 08, 2010
Sunday, August 01, 2010
Boundary Between Countries......
Hope the world celebrates Friendship.. for a long long time! Happy Friendship Day!
|
Saturday, July 31, 2010
'What is India?' - Know the answer from the world renowned intellectual giants
'What is India?' - Know the answer from the world renowned intellectual giants
Monday, July 05, 2010
Telugu Comedy-TV9.1 Comedy Crime Watch /Kishore : a 100 smiles
Wednesday, June 23, 2010
The Choice
There once lived a great mathematician in a village outside Ujjain. He was often called by the local king to advice on matters related to the
economy. His reputation had spread as far as Taxila in the North and Kanchi in the South. So it hurt him very much when the village headman told him, "You may be a great mathematician who advises the king on economic matters but your son does not know the value of gold or silver." The mathematician called his son and asked, "What is more valuable - gold or silver?" "Gold," said the son. "That is correct. Why is it then that the village headman makes fun of you, claims you do not know the value of gold or silver? He teases me every day. He mocks me before other village elders as a father who neglects his son. This hurts me. I feel everyone in the village is laughing behind my back because you do not know what is more valuable, gold or silver. Explain this to me, son." So the son of the mathematician told his father the reason why the village headman carried this impression. "Every day on my way to school, the village headman calls me to his house. There, in front of all village elders, he holds out a silver coin in one hand and a gold coin in other. He asks me to pick up the more valuable coin. I pick the silver coin. He laughs, the elders jeer, everyone makes fun of me. And then I go to school. This happens every day. That is why they tell you I do not know the value of gold or silver." The father was confused. His son knew the value of gold and silver, and yet when asked to choose between a gold coin and silver coin always picked the silver coin. "Why don't you pick up the gold coin?" he asked. In response, the son took the father to his room and showed him a box. In the box were at least a hundred silver coins. Turning to his father, the mathematician's son said, "The day I pick up the gold coin the game will stop. They will stop having fun and I will stop making money." Sometimes in life, we have to play the fool because our seniors and our peers, and sometimes even our juniors like it. That does not mean we lose in the game of life. It just means allowing others to win in one arena of the game, while we win in the other arena of the game. We have to choose which arena matters to us and which arenas do not.