Switch between languages

How to link between the same content page in different languages: (short summary: retrieve current url - replace "language folder" name - link to new url)

Switch between siblings

One way to switch between languages is to check if the currently active content has a sibling, and if it does, link to that. An example of how you could implement this:

    <%@ page import="java.util.HashMap"%>
    <%@ page import="java.util.Map"%>
    <%@ page import="java.util.List"%>
    <%@ page import="org.opencms.jsp.CmsJspActionElement"%>
    <%@ page import="org.opencms.file.CmsObject"%>
    <%@ page import="org.opencms.main.CmsException"%>
    <%@ page import="org.opencms.flex.CmsFlexController"%>
    <%@ page import="org.opencms.file.CmsResourceFilter"%>
    <%@ page import="org.opencms.file.CmsResource"%>
 
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 
    <%
        CmsJspActionElement cms = new CmsJspActionElement(pageContext, request, response);
        CmsObject cmso          = CmsFlexController.getCmsObject(request);
        String strPagename      = cms.getRequestContext().getUri();
        String homePage         = "/playground/index.html";
        Map<String, String> linksByLocale = new HashMap<String, String>();
        linksByLocale.put("en", homePage);
        linksByLocale.put("de", homePage);
        linksByLocale.put("fr", homePage);
        linksByLocale.put("nl", homePage);
        try {
            List<CmsResource> siblings = cmso.readSiblings(strPagename, CmsResourceFilter.ALL);
            for (CmsResource sibling : siblings) {
                String uri = cmso.getSitePath(sibling);
                linksByLocale.put(cmso.readPropertyObject(sibling, "locale", true).getValue(), uri);
            }
        } catch (CmsException e) {
 
        }
    %>    
        <a href="<%= cms.link(linksByLocale.get("en")) %>">en</a><br/>
        <a href="<%= cms.link(linksByLocale.get("nl")) %>">nl</a><br/>
        <a href="<%= cms.link(linksByLocale.get("fr")) %>">fr</a><br/>
        <a href="<%= cms.link(linksByLocale.get("de")) %>">de</a><br/>

The above could be saved as a separate jsp element and then included in your templates.