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Various languages are available in the portal package. The configuration below will define which languages shown in the "Change Language" section and made available to users.
The portal.war:/WEB-INF/conf/common/common-configuration.xml file of your installation contains the following section:
<component>
<key>org.exoplatform.services.resources.LocaleConfigService</key>
<type>org.exoplatform.services.resources.impl.LocaleConfigServiceImpl</type>
<init-params>
<value-param>
<name>locale.config.file</name>
<value>war:/conf/common/locales-config.xml</value>
</value-param>
</init-params>
</component>
This configuration points to the locale configuration file (portal.war:/WEB-INF/conf/common/locales-config.xml) that contains the following code:
<?xml version="1.0" encoding="UTF-8"?>
<locales-config>
<locale-config>
<locale>en</locale>
<output-encoding>UTF-8</output-encoding>
<input-encoding>UTF-8</input-encoding>
<description>Default configuration for english locale</description>
</locale-config>
<locale-config>
<locale>fr</locale>
<output-encoding>UTF-8</output-encoding>
<input-encoding>UTF-8</input-encoding>
<description>Default configuration for the french locale</description>
</locale-config>
<locale-config>
<locale>ar</locale>
<output-encoding>UTF-8</output-encoding>
<input-encoding>UTF-8</input-encoding>
<description>Default configuration for the arabic locale</description>
<orientation>rt</orientation>
</locale-config>
</locales-config>
locale: This has to be defined, such as http://ftp.ics.uci.edu-pub-ietf-http-related-iso639.txt. In this example, "ar" is Arabic.
output-encoding: This deals with the character encoding. It is recommended that UTF-8 be used.
input-encoding: In the Java implementation, the encoding parameters will be used for the request response stream. The input-encoding parameter will be used for requesting setCharacterEncoding(..).
description: Brief description of the language.
orientation: The default orientation of text and images is Left-To-Right. eXo Platform supports Right-To-Left orientation. Modifying the text orientation is explained in ???.