Monday, September 8, 2008

How to set up an Eclipse console for multilingual support

  1. In your code insert the following:

Locale loc = new Locale("ko", "KR");


In this example I created an instance of Korean Locale, for the sake of example. Second line means, set Korean Locale as default. After those lines of code you can put your business logic.

To get the Eclipse console to display characters in an encoding other than your system default encoding, you need to do the following:

  1. Set the file encoding on the target VM in the Arguments Tab of the Run? dialog ("-Dfile.encoding=UTF-8").

  1. Set the console encoding to match the encoding you set on the target VM in the Common tab of the Run? dialog.

  • Open Run Dialog ...

  • Type "-Dfile.encoding=UTF-8" in the VM arguments

  • Select UTF-8 in the Common tab

That's it. Enjoy.

Tuesday, August 26, 2008

Some ICEFaces tags

First at all, why i've chosen an ICEFaces? There are some reasons and here they are:
1. It supports Ajax
2. It looks very cool
3. It works well
4. Integrated with Eclipse
5. It is possible to combine another frameworks like Spring, Struts and even more.

The first control i would rather speak about is ice:selectonelistbox
The control looks like this:

The corresponding listbox tag looks like this:
ice:selectOneListbox id="SlctFileListBoxID" title="files" size="5"
value="#{buttonclick.fileSelected}" partialSubmit="true"
style="width:100%;overflow: auto;"
f:selectItems id="SlctFilesItms"
value="#{buttonclick.filesListItems}" />
I missed "<" sign because it's not correctly showing on the blog page How does it render on the html page?
<select class="iceSelOneLb" 
="iceSubmitPartial(form, this, event);"
="width:100%;overflow: auto;"
<option value="allclasses-frame.html">allclasses-frame.htmloption>

What we need in backing bean...
String fileSelected = "";
protected SelectItem[] FILES_ITEMS;

public SelectItem[] getFilesListItems() {
try {
FILES_ITEMS = new SelectItem[getFiles().length];
for (int i = 0; i < getFiles().length; i++) {
FILES_ITEMS[i] = new SelectItem(getFiles()[i]);
} catch (Exception e) {

public void fileChanged(ValueChangeEvent event) {
if(event.getNewValue()!= null){
fileSelected = (String) event.getNewValue();
System.out.println("Clicked value: " + event.getNewValue());
public String getFileSelected() {
return fileSelected;

public void setFileSelected(String fileSelected) {
this.fileSelected = fileSelected;

That's it indeed.
But isn't actually. Something is incomplete...
And now time for theory.
The values—allclasses-frame.html ,Driver.html and so on.—are transmitted as request parameter values when a selection is made from the menu and the menu’s form is subsequently
submitted. Those values are also used as labels for the menu items. Sometimes you want to specify different values for request parameter values and item labels, so f:selectItems also has an itemLabel attribute:
f:selectItems itemValue="2008" itemLabel="Have a good day"/>

A single f:selectItems tag is usually better than multiple f:selectItem tags. If the number of items changes, you ought to adapt only Java code whether you use f:selectItems, whereas f:selectItem may entail to change both Java code and JSF pages.

That's all.

Sunday, May 18, 2008

Spring LDAP

When we're writing the intranet web application we should implement some authentification mechanism. There are a lot of ways to do it, but a more conveniently just to use a Spring LDAP framework. Here are the steps to set up this structure.
1. Download Spring LDAP form the site:
2. Create Java Project;
2.1 Create package com.ldap.examples;
3. Import to it following jars:
i. commons-lang.jar
ii. commons-logging.jar
iii. commons-pool.jar
iv. ldapbp.jar
v. spring-beans.jar
vi. spring-context.jar
vii. spring-core.jar
viii. spring-dao.jar
ix. spring-jdbc.jar
x. spring-ldap-1.2.1.jar
4. Create PersonDao interface:

package com.ldap.examples;
import java.util.List;
public interface PersonDao {
public List getAllContactNames();
public List getContactDetails(String commonName,String lastName);
public List getPersonMail(String mail);

5. Create Java's class that implemets PersonDao interface

package com.ldap.examples;
import java.util.List;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.ldap.core.LdapTemplate;
import org.springframework.ldap.filter.AndFilter;
import org.springframework.ldap.filter.EqualsFilter;
public class PersonDaoImpl implements PersonDao {
private LdapTemplate ldapTemplate;
public void setLdapTemplate(LdapTemplate ldapTemplate) {
this.ldapTemplate = ldapTemplate;
* @param args
public static void main(String[] args) {
Resource resource = new ClassPathResource("com/ldap/examples/springldap.xml");
BeanFactory factory = new XmlBeanFactory(resource);
LdapTemplate ldapContact = (LdapTemplate) factory.getBean("ldapTemplate");
PersonDaoImpl my = new PersonDaoImpl();
public List getAllContactNames() {
// TODO Auto-generated method stub
return null;
public List getPersonMail(String mail) {
AndFilter andFilter = new AndFilter();
andFilter.and(new EqualsFilter("objectclass","person"));
andFilter.and(new EqualsFilter("mail",mail));
System.out.println("LDAP Query " + andFilter.encode());
return"", andFilter.encode(),new ContactAttributeMapper());
public List getContactDetails(String commonName, String lastName) {
// TODO Auto-generated method stub
return null;

6. Create springldap.xml
-??xml version="1.0" encoding="UTF-8"?>
-??!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" -"">
-?bean id="contextSource"
-?property name="url" value="ldap://ldapServerIPorName:389" />
-?property name="base" value="" />
-?bean id="ldapTemplate" class="org.springframework.ldap.core.LdapTemplate">
-?constructor-arg ref="contextSource" />
-?bean id="ldapContact"
-?property name="ldapTemplate" ref="ldapTemplate" />
Change ? to the < (Blogger bug???)
Put this file into package.
7. Create ContactDTO java's class

package com.ldap.examples;
public class ContactDTO {
String commonName;
String lastName;
String description;
String mail;
public String getCommonName() {
return commonName;
public void setCommonName(String commonName) {
this.commonName = commonName;
public String getDescription() {
return description;
public void setDescription(String description) {
this.description = description;
public String getLastName() {
System.out.println("Last name: " + lastName);
return lastName;
public void setLastName(String lastName) {
this.lastName = lastName;
public String toString() {
StringBuffer contactDTOStr = new StringBuffer("Person=[");
contactDTOStr.append(" Mail = " + mail);
contactDTOStr.append(", Common Name = " + commonName);
contactDTOStr.append(", Last Name = " + lastName);
contactDTOStr.append(", Description = " + description);
contactDTOStr.append(" ]");
return contactDTOStr.toString();
public String getMail() {
System.out.println("Mail: " + mail);
return mail;
public void setMail(String mail) {
this.mail = mail;

8. Create ContactAttributeMapper

package com.ldap.examples;
import javax.naming.NamingException;
import org.springframework.ldap.core.AttributesMapper;

public class ContactAttributeMapper implements AttributesMapper{
public Object mapFromAttributes(Attributes attributes) throws NamingException {
ContactDTO contactDTO = new ContactDTO();
String commonName = (String)attributes.get("cn").get();
if(commonName != null)
String lastName = (String)attributes.get("sn").get();
if(lastName != null)
Attribute description = attributes.get("description");
if(description != null)
Attribute mail = attributes.get("mail");
if(mail != null){
contactDTO.setMail((String) mail.get());
return contactDTO;

That's all. Thanks to the Spring LDAP team!!!

Tuesday, March 25, 2008

How to integrate ICEfaces with WTP?

Ok. After almost a week of attempts to integrate ICEFaces v.1.6.2 with WTP (Eurora based on Eclipse 3.3) i still succeeded. The steps which have been described were not correct. The correct steps (at least for me) are:
1. As usual, Java 2 EE 5/6;
2. Eclipse IDE for Java EE Developers - Eurora 3.3.1
3. ICEFaces - and
4. Unzip all files from step 3.
5. In the Eclipse, go to Help -> Software Updates -> Find and Install
6. In the Features Updates check Search for new features to install
7. Click Next
8. In the Update sites to visit check Eurora site
9. Click Finish
10.Check all relevant updates and install
11. Repeat the step 5 - 7
12. Click New Local Site...
13. Select the directory where has been unzipped ICEFaces
14. Click OK
15. Select this location in the sites to include in search
16. Click Finish
17. Install the ICEfaces
So it's all.
Now you are able to use these faces into your project.