Love, hold, and protect your PDBs.

hybris links

2014-08-11T11:33:00.003-07:00

Bye!

Create a component:
https://wiki.hybris.com/display/release4/B2B+Customization+of+WCMS+Module+Elements

Create template page
https://wiki.hybris.com/display/accdoc/How+To+Add+a+New+CMS+Page+Template+-+Tutorial

i need this:
http://docs.spring.io/spring-framework/docs/current/spring-framework-reference/html/beans.html

Memory dump

2014-05-06T04:31:00.003-07:00

./jmap -heap:format=b pid

will create a heap.bin file. May be analysed using jvisualvm.

copy all files of type in one place

2013-10-29T01:40:00.000-07:00

find ../liferay/ -name *.war -print0 | xargs -0 cp -t .

liferay 2

2013-09-13T08:47:00.001-07:00

I know.. i know i didn't write for a long time.. but i was muddling some liferay .. and i had i thought...

What's good about ext-plugins?
you can have only one....

liferay

2012-10-05T12:23:00.002-07:00

may be usefull ( best practice ) : http://blog.orange11.nl/2012/05/03/liferay-sdk-development-best-practices/

looks more usefull
http://www.liferay.com/community/wiki/-/wiki/Main/Optimal+Liferay+Core+Development+with+IntelliJ

it works :)
http://www.liferay.com/web/mika.koivisto/blog/-/blogs/12322618

start tomcat for remote debut: catalina.sh jpda run

vpn client for linux: http://www.linuxplanet.com/linuxplanet/tutorials/7271/1

from ppk to key for ssh: http://thanosk.net/content/conver-putty-ppk-key-ssh-key

create a sftp user http://solderintheveins.co.uk/2011/03/ubuntu-sftp-only-account-how-to/
http://archive.networknewz.com/networknewz-10-20030707AuthenticatingbyPublicKeyOpenSSH.html

create private/public keys http://www.cyberciti.biz/faq/ssh-password-less-login-with-dsa-publickey-authentication/

tomcat6 java.lang.OutOfMemoryError: PermGen space

2012-08-20T04:03:00.000-07:00

These params must be updated to these values:

-XX:PermSize=256m

-XX:MaxPermSize=256m

Where can i can add these params?

/etc/tomcat6.config

There is a line called JAVA_OPTIONS. Add the new params before the closing ".

Using only PermSize it should look like this:

JAVA_OPTS="${JAVA_OPTS} -Djavax.sql.DataSource.Factory=org.apache.commons.dbcp.BasicDataSourceFactory -XX:PermSize=256m"

netstat -tulpn | grep port

ps pid

kill pid

tomcat as a service: /etc/init.d/tomcat6 stop

tar -zcvf archive-name.tar.gz directory-name
tar xvf /data/package.tar /usr


  ProxyPass ajp://localhost:8009/foo
  ProxyPassReverse ajp://localhost:8009/foo

And then in your server.xml:

XFCE ( 4.10 XUbuntu / Mint 13 XFCE ) Maximize window by Double clicking title bar

2012-07-16T11:36:00.002-07:00

I found this bug report which looks like fixed:
- [xfce]Double click title bar actions use different speed than text selection

Anyway, on my configuration, i have a cheap , no brand, "laser mouse", this is not working.

I found in the bug comments these instructions which worked for me:

XFCEMenu -> Setting -> Settings Editor

xfwm4 -> general

double_click_time = 400 

xsettings -> Net

DoubleClickTime = 400

Effective Java

2012-03-14T13:56:00.001-07:00

http://www.youtube.com/watch?v=V1vQf4qyMXg

http://static.springsource.org/spring/docs/2.5.x/api/org/springframework/test/util/ReflectionTestUtils.html

It's nice to use with Junit. It helps to set private members.

RESTful controllers and error handling and validation

2012-03-07T00:03:00.001-08:00

I found this info about the error handling in restful controllers

http://blog.cuttleworks.com/2011/12/spring-restful-controllers-and-error-handling/
http://blog.zenika.com/index.php?post/2011/05/18/Error-handling-with-REST
http://blog.goyello.com/2011/12/16/enhancements-spring-mvc31/

first link is about changing the model and view to a JSON model and view.
But do not implement AnnotatedExceptionResolver as it will conflict with @Valid.
It's working without it anyway.

Mainly on controller can be added annotated methods which can return the http error code and some other useful info about the error.

ex:

@ExceptionHandler(EmptyResultDataAccessException.class)
@ResponseStatus(value=HttpStatus.NOT_FOUND,reason="Contact not found")
public void notFound() { }

how to install a .rpm on ubuntu

2012-02-09T01:40:00.000-08:00

sudo apt-get install alien dpkg-dev debhelper build-essential
sudo alien packagename.rpm
sudo dpkg -i packagename.deb

source: howtogeek.com

Linux, add user to group

2011-12-28T13:08:00.000-08:00

usermod -G groupname username

gnome 3.2 shortcuts

2011-11-20T03:23:00.001-08:00

Super key: Switch between overview and desktop

Alt+F1: Switch between overview and desktop

Alt+F2: Pop up command dialog

Alt+Tab: Pop up application switcher

Alt+Shift+Tab: Cycle in reverse direction in the application switcher

Alt+[key above Tab]: Switch between windows of the same application in Alt+Tab

Ctrl+Alt+Tab: Pop up accessibility switcher

Ctrl+Shift+Alt+R: Start and end screencast recording

Ctrl+Alt+Up/Down arrow: Switch between workspaces

Ctrl+Alt+Shift+Up/Down arrow: Move the current window to a different workspace

Alt+Tab: Pop up application switcher

Alt+[key above Tab]: Switch between windows of the same application in Alt+Tab

As much as i hate Ubuntu, I am not ready to move along, but soon...

jQuery: select an element by an ID that has characters like comma and dots

2011-11-09T23:45:00.000-08:00

The solution can be found here:

Mainly:

You have to tell jQuery to treat these characters literally rather than as CSS notation, they must be "escaped" by placing two backslashes in front of them.

 // Does not work
 $("#some:id")
 
 // Works!
 $("#some\\:id")

 // Does not work
 $("#some.id")
 
 // Works!
 $("#some\\.id")

 A little helper function that may help alot :

 function jq(myid) { 
   return '#' + myid.replace(/(:|\.)/g,'\\$1');
 }

The function can be used like so:
$( jq('some.id') )

install npm for node.js

2011-11-01T12:54:00.000-07:00

On ubuntu when installing npm package manager, it fails with

npm ERR! error installing npm@1.0.103 Error: EACCES, Permission denied '../lib/node_modules/npm/bin/npm-cli.js'

npm ERR! error rolling back npm@1.0.103 Error: ENOTEMPTY, Directory not empty '/usr/local/lib/node_modules/npm/node_modules'

npm ERR! Error: EACCES, Permission denied '../lib/node_modules/npm/bin/npm-cli.js'
npm ERR! Report this *entire* log at:
npm ERR!
npm ERR! or email it to:
npm ERR!
npm ERR!
npm ERR! System Linux 3.0.0-12-generic
npm ERR! command "/usr/local/bin/node" "/tmp/npm.8484/package/cli.js" "install" "-gf"
npm ERR! cwd /tmp/npm.8484/package
npm ERR! node -v v0.4.12
npm ERR! npm -v 1.0.103
npm ERR! path ../lib/node_modules/npm/bin/npm-cli.js
npm ERR! code EACCES
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! /tmp/npm.8484/package/npm-debug.log
npm not ok

I found the solution here:
https://github.com/isaacs/npm/issues/1612

curl http://npmjs.org/install.sh | sudo clean=no sh

How to install SUN JDK 7.0 on Ubuntu 11.10

2011-10-16T01:07:00.000-07:00

It looks like the Sun Java was removed from the Ubuntu repositories...

This is how Java can be installed from Oracle site:

1. Download the tar.gz file for linux,ex: jdk-7-linux-i586.tar.gz from Oracle

2. Untar and copy it where the open java is installed: /usr/lib/jvm/

sudo tar -zxvf ~/Downloads/jdk-7-linux-i586.tar.gz -C /usr/lib/jvm/

3. Add the new java installation to the java alternative lists:

sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.7.0/jre/bin/java 1

4. Make the added installation the default one
sudo update-alternatives --config java

5. Choose the sun java option, in my case it was 2.

6. Test using java -version.

my java path: /usr/lib/jvm/jdk1.7.0/jre/bin/java

---------------------------------------------------------

Install maven directly from Apache site.

1. download and untar mvn.

sudo tar -zxvf ~/Downloads/mvn.tar.gz -C /usr/local/apache-maven

2. edit /etc/profile( add Java Home / MVN home, and add bin to Path )

JAVA_HOME=/usr/lib/jvm/jdk1.7.0
export PATH=$PATH:$JAVA_HOME/bin

M2_HOME=/usr/local/apache-maven/apache-maven-2.2.1
export M2=$M2_HOME/bin
export PATH=$PATH:M2

---------------------------------------------------------

edit /etc/environment ex:

PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/home/flgor/tools/jdk1.6.0_31/bin"
JAVA_HOME="/home/flgor/tools/jdk1.6.0_31"
M2_HOME="/usr/share/maven2"

add java to firefox:
cd /usr/lib/firefox-10.0.1/plugins

sudo ln -s /home/flgor/tools/jdk1.6.0_31/jre/lib/i386/libnpjp2.so .

Ubuntu 11.10 and gnome shell 3.2

2011-10-15T13:33:00.000-07:00

Ubuntu 11.10 was released yesterday i guess...

It has a lot of nice reviews, but from my point of view it's not that piece of art.

I find Unity still in the sucking position. CompizConfig it's a must in order to tweak a little... but compiz config crashes and in few clicks i made Unity menus to disappear forever.

The proprietary drivers does not install correctly... The post release one does not install at all, and the older one crashes with gnome 3.

What i find very nice is gnome shell. Gnome 3.2 really deserve a try.

-How to install gnome shell 3.2:
Go into Ubuntu software center, search for gnomeshell, click install.
Install gnome tweak. ( same way )

For moment do not install the recommended ATI drivers.

Here is a link from Ati site how to install the drivers manually:
http://wiki.cchtml.com/index.php/Ubuntu_Oneiric_Installation_Guide

ToDo: Try Fedora 16 with gnome shell when it will be released.

How to add an application to activities Gnome 3:
http://bloggezmoy.com/2011/05/17/how-to-add-an-application-to-the-gnome-3-application-launcher/

Node.js helpful links ( moved from clipboard )

2011-09-21T13:52:00.000-07:00

node-js openssl error:

http://blog.andyhoff.com/nodejs-could-not-autodetect-openssl-support

how to include socket.io into html / jsp ( check the html code )

http://stackoverflow.com/questions/6785979/socket-io-0-7-7-client-issues-require-socket-io-client-js-not-working?answertab=votes#tab-top

Final answer can be found on socket.io wiki:
https://github.com/LearnBoost/Socket.IO/wiki/How-do-I-serve-the-client

node-js get post data:

http://stackoverflow.com/questions/4295782/node-js-extracting-post-data

json on node-js:

http://onemoredigit.com/post/2132782467/node-js-websockets-and-talking-json

disconnect, reconnect ( create client socket with {'force new connection': true} )
http://stackoverflow.com/questions/7499463/socket-io-works-first-time-not-second-time-onwards?answertab=votes#tab-top

Node helpful http request link
http://nodejs.org/docs/v0.4.8/api/all.html#http.request

Node useful link:
http://nodeguide.com/beginner.html

qt application: mount iso files on xubuntu

2011-08-29T12:24:00.000-07:00

Info: a new version xisomount002 was released on code.google http://code.google.com/p/xisomount/downloads/detail?name=xisomount002&can=2&q=


X Iso Mount Application version 0.02

The application can be downloaded from qt-app.org . This is the link: http://qt-apps.org/content/show.php/X+Iso+Mount?content=145408&PHPSESSID=91a9d9296e91784a7230773f612be5ef

The project code can be found here:
http://code.google.com/p/xisomount/

A linux executabil can be found here:
http://code.google.com/p/xisomount/downloads/list

Instalation:
Download application from the above location.
sudo chmod a+x xisomount
./xisomount

Obs:
This may be the final version for moment. I don't have any plans to do add more functionality as the application serves me well enough. I will add new releases when I will move to another linux distribution or when new major qt version will be launched.

High lvl overview:
The whole application is a Qt GUI around these commands:
- sudo mount -o loop isoFileName.iso mountLocation
- sudo umount mountLocation
- mount -l -t udf

Done:
-text aria with all mounted dvds
-added vlc and thunar buttons ( works with mount location line edit )
-drag and drop events
-systray icon
-basic functionality

In progress:
- application will read start param if present ( an iso file path ).
- only one instance of the application is allowed.

Backlog:
-change text aria with a table view ( for mounted dvds )
-add help
-implement all the menus submenus.
-create a deb.
-only one instance of the application is allowed.

Tutorial: adding authentication to Spring MVC

2011-08-26T13:49:00.000-07:00

in progress ( will take some time ).

Spring Data Migrate from M2 to M3

2011-08-09T09:13:00.000-07:00

Spring Data and Mongo tutorial was created using 1.0.0.M2.
The new spring data version 1.0.0.M3 comes with alot of improvements.

These are the changes needed to update the project to M3

Update pom.xm

< properties > 
     < tiles.version > 2.2.2 < /tiles.version > 
     < spring.data.mongo.version > 1.0.0.M3 < /spring.data.mongo.version > 
 < /properties > 

 < dependency > 
 < groupId > org.springframework.data < /groupId > 
     < artifactId > spring-data-mongodb < /artifactId > 
     < version > ${spring.data.mongo.version} < /version > 
 < /dependency > 

 < repositories > 
     < repository > 
     < id > spring-milestone < /id > 
     < name > Spring Maven MILESTONE Repository < /name > 
     < url > http://maven.springframework.org/milestone < /url > 
 < /repository > 

 < /repositories >

Also, MongoTemplate no longer takes a default collection name. The collection name is now either specified when the method is invoked or inferred from the Java class, either the class name or via mapping metadata.
So, mongo-configuration.xml will look like this:

< bean id="mongoTemplate" class="org.springframework.data.document.mongodb.MongoTemplate" > 
     < constructor-arg ref="mongo"/ > 
     < constructor-arg name="databaseName" value="usersdb"/ > 		  
 < /bean >

The ref attribute from mongoTemplate specifies which mongo:mongo object should be used. A more detailed exemple about this can be found into the M3 documentation. Different mongoTemplate beans can have different mongo objects ( mongo servers ).

Tip ( when using multiple databases into the same project ):
MongoTemplate is mapped over a database.

Instantiate mongoTemplate beans using the id attribute also.
The id can be passed to the mongo:repositories using mongo-template-ref attribute like this:

< mongo:repositories base-package="com.application.repositories1" mongo-template-ref="mongoTemplateId1"/>
< mongo:repositories base-package="com.application.repositories2" mongo-template-ref="mongoTemplateId2"/>

If the mongo-template-ref is not defined it will be used by spring only one mongoTemplate when creating repositories and all the collections will go into one database.

Spring 3 MVC and MongoDB using SpringData

2011-08-05T06:43:00.000-07:00

How to create a Spring MVC project with SpringData and MongoDB database from scratch.

Pre requests:
- eclipse and maven plugin for eclipse
- maven ( command line, optional )
- mongodb
- java jdk 1.6

In eclipse create a new maven project
- File - New - Others - Maven - Maven Project
- Check create a simple project
- select .war and fill the blanks

At the end of this process you should have a java project and minimal pom.xml
Add the spring, springdata and mongodb dependencies in pom.xml

Create controler, service, model and repository packages.

Model package will include simple POJO classes. These classes will be modeled over the mongoDB collections.

User.java Class:

package com.flgor.model;

import org.springframework.data.annotation.Id;

public class User {
 @Id
 String id;
 String name;
 String password; 
 public String getId() {
  return id;
 }
 public void setId(String id) {
  this.id = id;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public String getPassword() {
  return password;
 }
 public void setPassword(String password) {
  this.password = password;
 }
}

Repository package will contain only interfaces. These interfaces will extend MongoRepository interface.
Into these interfaces we can declare Query methods. ( check springdata documentation for details )

This is an exemple:

IUserRepository.java class:

package com.flgor.repository;

import java.util.List;
import org.springframework.data.document.mongodb.repository.MongoRepository;
import com.flgor.model.User;

public interface IUserRepository extends MongoRepository< User, String > {
 List< User > findByName(String user);
}

In the next file are created the mongoTemplate and the mongorepositories beans.

mongo-config.xml

< ?xml version="1.0" encoding="UTF-8"?  >         
< beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
 xmlns:mongo="http://www.springframework.org/schema/data/mongo"
 xsi:schemaLocation="http://www.springframework.org/schema/beans 
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/data/mongo
      http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd" >         

 < mongo:repositories base-package="com.flgor.repository" / >         

 < mongo:mongo host="localhost" port="27017" / >         

 < bean id="mongoTemplate" class="org.springframework.data.document.mongodb.MongoTemplate" >         
  < constructor-arg ref="mongo" / >         
  < constructor-arg name="databaseName" value="tutorialDB" / >         
  < constructor-arg name="defaultCollectionName" value="user" / >         
 < /bean >         
< /beans >

Using spring data ( mongotemplate and mongorepository ) it's very eazy and natural to work over the mongo database.

Next is a simple service.java exemple (service package ). It's implemented mongo collection clean, insert, findall and find by name inside the initialise method.

package com.flgor.service;

import java.util.List;

import javax.annotation.PostConstruct;

import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.document.mongodb.MongoTemplate;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;



import com.flgor.model.User;
import com.flgor.repository.IProductRepository;
import com.flgor.repository.IUserRepository;
import com.flgor.model.Product;

@Repository
@Transactional
public class ApplicationService {

 @Autowired
 private IProductRepository productRepository;

 @Autowired
 private IUserRepository userRepository;

 @Autowired
 private MongoTemplate mongoTemplate;

 private final static Logger logger = Logger
   .getLogger(ApplicationService.class);

 @PostConstruct
 public void initialise() {
  // Clean User and Product Database
  mongoTemplate.dropCollection("user");
  productRepository.deleteAll();

  // Add an user using MongoRepository
  User user = new User();
  user.setName("admin");
  user.setPassword("admin");
  userRepository.save(user);

  // Add products using MongoTemplate
  for (int i = 0; i  <  10; i++) {
   Product product = new Product();
   product.setName("product " + i);
   product.setPrice((float) (i * 100));
   mongoTemplate.save("product", product);
  }

  List < Product >  productList = productRepository.findAll();
  for (Product prod : productList) {
   logger.info(prod.getName());
  }

  // findByName is only declared in IUserRepository
  // the magic is done automatically by Spring
  List < User >  userList = userRepository.findByName("admin");
  logger.info("First user is: " + userList.get(0).getName());
 }
}

For moment controller it's not implemented. Also there is no viewer resolver.
Start mongodb (./bin/mongod )
Start the tutorial with mvn tomcat:run
mvn clean install may help.

The applicationService output at startup:

1423 [main] INFO  com.flgor.service.ApplicationService  - product 0
1423 [main] INFO  com.flgor.service.ApplicationService  - product 1
1423 [main] INFO  com.flgor.service.ApplicationService  - product 2
1423 [main] INFO  com.flgor.service.ApplicationService  - product 3
1423 [main] INFO  com.flgor.service.ApplicationService  - product 4
1423 [main] INFO  com.flgor.service.ApplicationService  - product 5
1423 [main] INFO  com.flgor.service.ApplicationService  - product 6
1423 [main] INFO  com.flgor.service.ApplicationService  - product 7
1423 [main] INFO  com.flgor.service.ApplicationService  - product 8
1423 [main] INFO  com.flgor.service.ApplicationService  - product 9
1440 [main] INFO  com.flgor.service.ApplicationService  - First user is: admin

Into the the mongo database will be crated a user collection( with 1 entry ) and product collection( with 10 entries).

A tipical servletName-servlet.xml for SPRING MVC project:

< ?xml version="1.0" encoding="UTF-8"?  >  
 < beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
 xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
 xsi:schemaLocation="http://www.springframework.org/schema/beans      
                  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                  http://www.springframework.org/schema/context
                  http://www.springframework.org/schema/context/spring-context-3.0.xsd
               http://www.springframework.org/schema/mvc 
               http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd" > 

  < import resource="classpath:tutorialApplicationContext.xml" / > 

  < context:annotation-config / > 
  < context:component-scan base-package="com.flgor" / > 
  < mvc:annotation-driven / > 
 < /beans >

This is how the pom.xml should look like.

< project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" > 
  < modelVersion > 4.0.0 < /modelVersion > 
  < groupId > com.flgor < /groupId > 
  < artifactId > tutorial < /artifactId > 
  < version > 0.0.1 < /version > 
  < packaging > war < /packaging > 
  < name > mongotutorial < /name > 
  < description > spring data tutorial < /description > 

  < dependencies > 
   < dependency > 
    < groupId > javax.annotation < /groupId > 
    < artifactId > jsr250-api < /artifactId > 
    < version > 1.0 < /version > 
   < /dependency > 
   < dependency > 
    < groupId > jstl < /groupId > 
    < artifactId > jstl < /artifactId > 
    < version > 1.1.2 < /version > 
    < type > jar < /type > 
    < scope > compile < /scope > 
   < /dependency > 
   < dependency > 
    < groupId > taglibs < /groupId > 
    < artifactId > standard < /artifactId > 
    < version > 1.1.2 < /version > 
    < type > jar < /type > 
    < scope > compile < /scope > 
   < /dependency > 
   < dependency > 
    < groupId > junit < /groupId > 
    < artifactId > junit < /artifactId > 
    < version > 4.8.1 < /version > 
    < type > jar < /type > 
    < scope > compile < /scope > 
   < /dependency > 
   < dependency > 
    < groupId > log4j < /groupId > 
    < artifactId > log4j < /artifactId > 
    < version > 1.2.14 < /version > 
    < type > jar < /type > 
    < scope > compile < /scope > 
   < /dependency > 
   < dependency > 
    < groupId > org.springframework < /groupId > 
    < artifactId > spring-web < /artifactId > 
    < version > 3.0.5.RELEASE < /version > 
    < type > jar < /type > 
    < scope > compile < /scope > 
   < /dependency > 
   < dependency > 
    < groupId > org.springframework < /groupId > 
    < artifactId > spring-core < /artifactId > 
    < version > 3.0.5.RELEASE < /version > 
    < type > jar < /type > 
    < scope > compile < /scope > 
   < /dependency > 
   < dependency > 
    < groupId > org.springframework < /groupId > 
    < artifactId > spring-tx < /artifactId > 
    < version > 3.0.5.RELEASE < /version > 
    < type > jar < /type > 
    < scope > compile < /scope > 
   < /dependency > 
   < dependency > 
    < groupId > org.springframework < /groupId > 
    < artifactId > spring-webmvc < /artifactId > 
    < version > 3.0.5.RELEASE < /version > 
    < type > jar < /type > 
    < scope > compile < /scope > 
   < /dependency > 
   < dependency > 
    < groupId > org.springframework < /groupId > 
    < artifactId > spring-aop < /artifactId > 
    < version > 3.0.5.RELEASE < /version > 
    < type > jar < /type > 
    < scope > compile < /scope > 
   < /dependency > 
   < dependency > 
    < groupId > org.springframework.data < /groupId > 
    < artifactId > spring-data-mongodb < /artifactId > 
    < version > 1.0.0.M2 < /version > 
   < /dependency > 
  < /dependencies > 

  < build > 
   < finalName > spring-tutorial < /finalName > 
   < plugins > 
    < plugin > 
     < groupId > org.apache.maven.plugins < /groupId > 
     < artifactId > maven-compiler-plugin < /artifactId > 
     < version > 2.3.2 < /version > 
     < configuration > 
      < source > 1.5 < /source > 
      < target > 1.5 < /target > 
     < /configuration > 
    < /plugin > 
   < /plugins > 
  < /build > 

  < repositories > 
   < repository > 
    < id > spring-maven-milestone < /id > 
    < name > Springframework Maven Repository < /name > 
    < url > http://maven.springframework.org/milestone < /url > 
   < /repository > 
  < /repositories > 

 < /project >

The whole project can be downloaded from this location:
http://code.google.com/p/bet-alarm/downloads/list

Use Import -> Maven -> Existing Maven Project to import the project.

Used links:
http://static.springsource.org/spring-data/data-document/docs/1.0.0.M3/reference/html/
http://krams915.blogspot.com/2011/04/spring-data-mongodb-revision-for-100m2.html

Spring Property Placeholder Configurer using multiple files from resources

2011-08-02T23:43:00.000-07:00

A property resource configurer that resolves placeholders in bean property values of context definitions. It pulls values from a properties file into bean definitions.

Property "location" is used when we have only one property file, but "locations" accept a list of property files.

ApplicationContext xml should look like this when using "locations":

    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:database.properties</value>
                <value>classpath:authentication.properties</value>
            </list>
        </property>
    </bean>

Now we can use property files as usual:
Ex:
1. inside authentication.properties
fileBased.userList = userslist

2. injecting the property into other bean from application context xml:
<bean name="myBean" class="com.package.mybean"
        init-method="readUserLists">
        <property name="userLocation" value="${fileBased.userList}"/>
    </bean>

include HTML code on blogger.com in 2 eazy steps

2011-07-15T07:20:00.000-07:00

1. Replace < with < and > with >

2. Profit. :)

Edit:
In order to use syntaxhighlighter check this link:
syntax highlighting tutorial

I almost moved the blog to wordpress because of the syntax highlither.

http://net.tutsplus.com/tutorials/html-css-techniques/quick-tip-how-to-add-syntax-highlighting-to-any-project/

jsp, new line convert from java to html

2011-07-15T07:03:00.000-07:00

Problem:"\n" is not recognized by jsp as new line char.

Solution:
Inside the jsp file

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<% pageContext.setAttribute("newLineChar", "\n"); %>
<% pageContext.setAttribute("newLineHtml", "< br />"); %>

Use fn:replace to change from \n to <br \>
<c:out value="${fn:replace(loggedObject.stack, newLineChar, newLineHtml )}" escapeXml="false"/>

log4j tip:
do not use logger.info( e ); //where e is exception use logger.info("",e);
Using first method the error stack is not included, where stack is the most valuable info.

Spring Datastore Document and MongoDB

2011-07-13T11:08:00.000-07:00

http://static.springsource.org/spring-data/data-document/docs/1.0.0.M2/reference/html/#d0e3049