displaytag titleKey not fetching values from .properties file

[Ajay Kamble]

Hi All,

I have a simple Servlet/JSP/JSTL project deployed on WebSphere 6.1.

I am using displaytag to do pagination. I want to assign column titles from resource bundles, hence I used titleKey attribute, but for some reason the values are not displayed.

Here is my displaytag code

   
   <display:table name="accounts" class="salestable" cellpadding="1" cellspacing="1">
	 	<display:column titleKey="displayAccounts.th.accountName" property="account_Legal_Name__c"></display:column>
	 	<display:column titleKey="displayAccounts.th.CSN" property="account_CSN__c"></display:column>
	 	<display:column titleKey="displayAccounts.th.address" property="primary_Street__c"></display:column>
	 	<display:column titleKey="displayAccounts.th.city" property="primary_City__c"></display:column>
	 	<display:column titleKey="displayAccounts.th.zipcode" property="primary_Zip__c"></display:column>
	 	<display:column titleKey="displayAccounts.th.state" property="primary_State_Province__c"></display:column>
	 	<display:column titleKey="displayAccounts.th.country" property="primary_Country__c"></display:column>
	 	<display:column titleKey="displayAccounts.th.accountStatus" property="account_Status_Flag__c"></display:column>
	 	<display:column titleKey="displayAccounts.th.companyID" property="company_Integration_ID__c"></display:column>
	 </display:table>

Here is how I am setting my resource bundle (JSTL way),

  
    <fmt:setBundle var="sfbundle" basename="com.example.ApplicationResources" scope="session" />

My column titles just show Capitalized property names, that is title key is not working. But my JSTL fmt messages are properly displayed.

   
 <fmt:message bundle="${sfbundle}" key="displayAccounts.th.accountName" />
 

My properties file name is ApplicationResources_en.properties.

Can anyone please suggest why titleKey is not working here?

Regards,
Ajay

[Dilip Natarajan]

I ran into a similar problem
I use an Spring/Struts application

1)the solution will be to add the Displaytag.properties to classpath say if you use an IDE add it to Src directory or if you are using a build script make it to fall in the classes directory

2) Displaytag.properties should have this entry

Struts: (say you are using a Applicationresources.properties)
locale.provider=org.displaytag.localization.I18nStrutsAdapter

similar way for other frameworks

Hope this helps others too who are facing this

[Urmi Garad]

I was also facing this problem for Struts2 web application. Please use following steps to solve your problem

1) The solution will be to add the displaytag.properties to the path where ApplicationResource.properties is saved

2) displaytag.properties should have the below lines

#To read the displaytag titlekey value from ApplicationResources.properties
locale.provider=com.web.displaytag.resourceslookup.I18nStruts2Adapter
locale.resolver=com.web.displaytag.resourceslookup.I18nStruts2Adapter

3) Copy the below code to a new java class "I18nStruts2Adapter" at "com.web.displaytag.resourceslookup"(package path can be change as per your package structure) in your project.

package com.web.displaytag.resourceslookup;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.LocaleProvider;
import com.opensymphony.xwork2.TextProvider;
import com.opensymphony.xwork2.util.ValueStack;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts2.views.jsp.TagUtils;
import org.displaytag.Messages;
import org.displaytag.localization.I18nResourceProvider;
import org.displaytag.localization.LocaleResolver;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.Tag;
import java.util.Iterator;
import java.util.Locale;


public class I18nStruts2Adapter implements LocaleResolver, I18nResourceProvider {

    /**
     * prefix/suffix for missing entries.
     */
    public static final String UNDEFINED_KEY = "???"; //$NON-NLS-1$

    /**
     * logger.
     */
    private static Log log = LogFactory.getLog(I18nStruts2Adapter.class);

    /**
     * @see LocaleResolver#resolveLocale(javax.servlet.http.HttpServletRequest)
     */
    public Locale resolveLocale(HttpServletRequest request) {

        Locale result = null;
        ValueStack stack = ActionContext.getContext().getValueStack();

        Iterator iterator = stack.getRoot().iterator();
        while (iterator.hasNext()) {
            Object o = iterator.next();

            if (o instanceof LocaleProvider) {
                LocaleProvider lp = (LocaleProvider) o;
                result = lp.getLocale();

                break;
            }
        }

        if (result == null) {
            log.debug("Missing LocalProvider actions, init locale to default");
            result = Locale.getDefault();
        }

        return result;
    }

    /**
     * @see I18nResourceProvider#getResource(String, String,
     *      javax.servlet.jsp.tagext.Tag , javax.servlet.jsp.PageContext)
     */
    public String getResource(String resourceKey, String defaultValue, Tag tag,
            PageContext pageContext) {

        // if resourceKey isn't defined either, use defaultValue
        String key = (resourceKey != null) ? resourceKey : defaultValue;
        System.out.println("Key :"+key);
        String message = null;
        ValueStack stack = TagUtils.getStack(pageContext);
        Iterator iterator = stack.getRoot().iterator();

        while (iterator.hasNext()) {
            Object o = iterator.next();

            if (o instanceof TextProvider) {
                TextProvider tp = (TextProvider) o;
                message = tp.getText(key);

                break;
            }
        }

        // if user explicitely added a titleKey we guess this is an error
        if (message == null && resourceKey != null) {
            log.debug(Messages
                    .getString("Localization.missingkey", resourceKey)); //$NON-NLS-1$
            message = UNDEFINED_KEY + resourceKey + UNDEFINED_KEY;
        }

        return message;
    }

}

Hope this will helps to other struts2 user who are facing this problem. Happy Coding !!!