Safe to say walmart uses …. Spring, Tomcat and …

September 25th, 2009

type Exception report


description The server encountered an internal error () that prevented it from fulfilling this request.


com.wm.weblib.sys.UserSessionExpiredException: WebFlowMap is missing in session.
org.owasp.stinger.StingerFilter.doFilter(Unknown Source)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.23 logs.

Some Title Any

May 20th, 2008

Technorati Profile

Grails Scaffolding as a <DL> Table

May 15th, 2008

I really like scaffolding in grails. However I don’t like the scaffolding for the create, edit, and show. So I decided to hack up the templates. I’m not sure if there is a better way to have custom scaffolding templates. Please post if you have a good way since over riding the default might not be the best approach.

Here’s my hacked up version to use the dl, dt, and dd for create.gsp and the style sheet. The style sheet is not perfect yet but soon will be very close.

<%= multiPart ? ' enctype="multipart/form-data"' : '' %>></code>
<div class="dialog"><fieldset>
<legend>Create ${className}</legend>

excludedProps = [’version’,
props = { !excludedProps.contains( }

Collections.sort(props, comparator.constructors[0].newInstance([domainClass] as Object[]))
props.each { p ->
if(p.type != Set.class) {
cp = domainClass.constrainedProperties[]
display = (cp ? cp.display : true)
if(display) { %>

<dl class=”table-display prop”> <dt class=”name”> <label for=”${}”>${p.naturalName}:</label> </dt> <dd class=”value \${hasErrors(bean:${domainClass.propertyName},field:’${}’,'errors’)}”> ${renderEditor(p)} </dd> </dl><%  }   }   } %>

<div class=”buttons”><span class=”button”><input class=”save” type=”submit” value=”Create” /></span></div>

Okay Word Press doesn’t do it justice.

fieldset {
border: 1px solid #336699;
font-family: Verdana;
font-size: 12px;
line-height: 15px;
margin: 0px 0px 5px;
padding: 0px 5px 8px;
float: left;

fieldset legend {
font-weight: bold;
padding: 5px;

.table-display dt {
float: right;
font-weight: bold;
margin: 0pt;
padding: 0.2em;
text-align: right;
margin-top: .3em;

.table-display dd {
margin: 0pt;
padding: 0.2em;

dl.table-display {
margin: 0.2em 0pt;
padding: 0pt;

dd input {
height: 100%;

dd select {

height: 100%;
width: 100px;

dd.errors {
background: #fff3f3;
border: 1px solid red;
color: #cc0000;
margin: 10px 0 5px 0;
padding: 5px 0 5px 0;

Have to find a plugin to display code better.

If someone wants a better copy just email me.

Grails One Domain many applications…. Bad Developer ?

April 21st, 2008

Hello …. I think this maybe one way of doing common domain with Grails for multiple applications. Say you have this adserver you are writing or some type of administration you need to do. Create Users , manage a bit-o-content whatever. Your site is moderately popular you get a few 10k hits or so. Why would I want my admins running on my production server sucking up the resources? I don’t so here’s what I’m doing.

I created three grails applications …. I may just cut this down to two and a groovy project later. But I like the framework making test and stuff.

I called one domain-gr , one admin-gr, and one client-gr.

Created a sym-link from the grails-app/domain from each of the domain-gr and the client-gr to the domain-gr/grails-app/domain

Created unique controller for each of my client and domain scaffolded them out changed my datasource to the same ds. BAM one domain two different apps. remember to grails -Dserver.port=9090 run-app on the second app.

Now I can host the admin app locally and the client on my prod server.

Yes …. Yes I know what about a plugin you say? Well I thought about that and I didn’t like the idea of reloading a plugin for a domain while in development. I guess I could roll the plugin later.

That’s my latest hack. Ask me about my layout div control for site-mesh sometime.

My question is anyone got a better way? Is this bad good or ugly. I like it for the DRY principle.


PS… Worked fine importing them into eclipse. I don’t think this will work on Windoze.

Grails PayPal IPN How I did it ….

April 20th, 2008

After a bit of searching for a quick and dirty on Paypal and Grails my search came up blank. After making sure I wasn’t going to reinvent the wheel. I prodded off to fine the default jsp and servlet version which I did and it was very straight forward. Some of the code below is still used from that version.

Domain Object for paypal ipn:

class Ipn {
        String last_name
        String address_name
        String txn_type
        String receiver_email
        String address_city
        String residence_country
        String payment_gross
        String payment_date
        String address_zip
        String payment_status
        String address_street
        String first_name
        String payer_email
        String payer_id
        String verify_sign
        String payment_type
        String business
        String address_country_code
        String mc_fee
        String address_status
        String quantity
        String notify_version
        String mc_currency
        String custom
        String address_state
        String payment_fee
        String payer_status
        String shipping
        String item_name
        String tax
        String charset
        String item_number
        String invoice
        String mc_gross
        String txn_id
        String receiver_id
        String address_country
SenderController ....
 def paypal = {
                    String amount = params.paymentOptions
                    String itemType
                            itemType = "Whatever Order"
                    def now = new Date()
                    SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddmm")

                    String invoice = "P"+params.userid+params.year+params.make+sdf.format(now)
                    String postString = "?"+"cmd=_xclick"+"&"
                    postString += "“+”&”
                    postString += “item_name=”+itemType+”&”
                    postString += “amount=”+params.paymentOptions+”&”
                    postString += “custom=”+params.custom+”&”
                    postString += “invoice=”+invoice+”&”

                    postString += “notify_url=” + “&”
		    postString += "return=“+params.userid


class IpnController {

        def allowedMethods = [delete:'POST', save:'POST', update:'POST']
        EmailerService emailerService
        def index = {
                        def ipn = new Ipn(params)
                        Enumeration en = request.getParameterNames();
                        String str = "cmd=_notify-validate";
                                String paramName = (String)en.nextElement();
                                String paramValue = request.getParameter(paramName);
                                str = str + "&" + paramName + "=" + URLEncoder.encode(paramValue);
                        URL u = new URL("“);
                        URLConnection uc = u.openConnection();
                        PrintWriter pw = new PrintWriter(uc.getOutputStream());

                        BufferedReader br = new BufferedReader(new InputStreamReader(uc.getInputStream()));
                        String res = br.readLine();

                        def foo = MyDomainFoo.get( params.custom )

//                        check notification validation
                        if(res.equals(”VERIFIED”)) {
                                //send email
                                def email = [

                                     to: [ ‘‘ ],
                                     subject: ‘Yadada duh’ + ipn.invoice ,
                                     text:  Information’ 

                                     + ‘nOrder Payment Status: VERIFIED’
                             // sendEmails expects a List
                                //update estimate to Validated
                        else if(res.equals(”INVALID”)) {
                                //send email bad here
                        else {
                                println(”LOG:: Something bad happened with” + ipn.custom)

There it is in a nut-shell. It's not the cleanest but it works and works well.
What I would recommend if you  are doing some paypal stuff with grails would be to do the following.
 In your Config.groovy class use the following:
paypalurl = "http://localhost:8080/local-pay/foo"
analytics = "off"
environments {
   test {
	paypalurl = ""
   production {
	   analytics = "on"
	   paypalurl = "”

and use the grailsApplication.config.paypalurl convention so you can seperate the test from the production.
For Dev I used a mix of stuff with a selenium test for  checking the call from paypal. below is one I use in my test calls.
?shipping=0.00&txn_id=573053526782394N&mc_fee=0.39&charset=windows-1252&address_country=United States&item_name=Stuff they bought&payment_status=Completed&address_state=FL&address_street=payer address&verify_sign=A2Aln3iC.testuffthatsunreadablegx2Elkzx&address_status=confirmed&payment_fee=0.39&payment_gross=233.99&quantity=1&first_name=payername&address_city=payercity&address_country_code=US&item_number=&mc_currency=USD&residence_country=US& Doyle&controller=ipn&txn_type=web_accept&payer_status=unverified&last_name=Doyle&payment_type=instant&invoice=W2008041358&payer_id=V636&receiver_id=6VX7YJ&payment_date=20:59:18 Apr 13, 2008 PDT&mc_gross=2.99&tax=0.00&notify_version=2.4&address_zip=12345&
 Also fix the business from test to production.
Need to make this a plugin....
Questions, Comments, and Improvements Accepted below...

update nice guide on how olaf descripes IPN IPN Diagram From the Dzone Dzone Link

MQ Series 6 on Ubuntu

April 17th, 2008

This is just a quick post about installing MQ on Ubuntu. Since Hardy is coming out in less than a week I’ll need to do it again.

Install rpm

*Your mount steps may vary.

mkdir tmp-mq
sudo mount -t iso9660 -r -o loop /media/FIRELITE/ISO/WMQ_600.iso ~/tmp-mq/
rpm -ivh –nodeps MQSeriesRuntime-6.0.0-0.i386.rpm
rpm -ivh –nodeps MQSeriesServer-6.0.0-0.i386.rpm
rpm -ivh –nodeps MQSeriesJava-6.0.0-0.i386.rpm
rpm -ivh –nodeps MQSeriesSamples-6.0.0-0.i386.rpm
rpm -ivh –nodeps MQSeriesMan-6.0.0-0.i386.rpm
rpm -ivh –nodeps MQSeriesIES30-6.0.0-0.i386.rpm
rpm -ivh –nodeps MQSeriesConfig-6.0.0-0.i386.rpm

Rinse and repeat the steps above for the patches from IBM.

su - mqm from root

Create a Queue Manager :

crtmqm TEST

strmqcfg -c

Add your self to the MQM Group.

You should be good to go.

Launching the MQ Explorer.

create a workspace in your home mine is called mq-ws


Use the workspace you created in the above step.

You should be golden now. Much props to Nacho M. for the rpm stuff.


Incremental code review (ICR)

February 7th, 2008

I suggested that we start doing weekly code reviews on two projects that I’m currently developing on. So we are on week three of one and week one of another. This is a break from the norm where we normally do the code reviews when we are done coding. I’ve been screaming for incremental code reviews for along time.

Some Do’s:

  1. Have the review at least once a week when coding heavy.
  2. Do include the designer or the business expert. (We have caught minor and major items before they became bugs/defects!)
  3. Everyone takes turns showing their code.
  4. Check the egos and the clubs at the door.
  5. Use a separate machine not the developers machine. You  will be surprised at what you find or don’t.
  6. Make sure the machine has access to your CVS or whatever you are using. That way comments and code changes are checked in when you are done with the code review. Never let anyone take a note to change it later.
  7. Ask questions.


  1. Better team and code cohesion.
  2. Catching bugs early in the design.
  3. A true status of where we are.
  4. Pressure to keep the code in synch all the time.

That’s about it for right now. We have caught some holes in the design that would not have been caught until test. I think anyone can apply ICR to whatever methodology the subscribe to e.g. waterfall , agile … etc. We also seem to have a more complete earlier?

I guess I should add that one team has four and the other has three.

Don’t do the review if you don’t have the business people involved.

Refactoring Even Faster …. with method draging in eclipse ….

January 10th, 2008

Today I was doing some refactoring in RAD (Rational Application Developer) and found my self looking over in the package explorer thinking gee I’ll have to move that method over to the class I just created to get rid of the two classes I’m factoring out. I looked over and thought I should be able to just drag it down into the other class. BAM like a champ when I grabbed that green orb it moved right over when I plopped it down on the new class, updated all the reference just like I would have done it via ALT+SHIFT+V and navigate around to the class I wanted it to go. Normally I’m a keyboard Jedi but I guess I’ll be making an exception.

Home page … revamp

December 11th, 2007

Finally added the hook from my home page to my blog. This should be much better now. Have to fix the special characters … things to do things to do.

It’s over for the home button … Browser Consolidation

December 6th, 2007

Yeah… I killed the home button on my browser. I never use it. If I really want to go home I’ll just use the ctrl + home key. Also, moved location to the top level. Saving myself a few pixels in height.small-fox