/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.wicket.examples.requestmapper;
import java.util.List;
import java.util.Locale;
import org.apache.wicket.Session;
import org.apache.wicket.core.request.mapper.HomePageMapper;
import org.apache.wicket.request.IRequestHandler;
import org.apache.wicket.request.IRequestMapper;
import org.apache.wicket.request.Request;
import org.apache.wicket.request.Url;
import org.apache.wicket.request.component.IRequestablePage;
/**
* An {@link IRequestMapper} that handles requests to the home page ('/') and appends the string
* representation of the current session locale in the URL
*
* <p>
* I.e. a request to http://example.com/app will end up in http://example.com/app/en_US
*/
public class CustomHomeMapper extends HomePageMapper
{
/**
* Constructor.
*
* @param pageClass
* the class of the home page
*/
public CustomHomeMapper(final Class<? extends IRequestablePage> pageClass)
{
super(pageClass);
}
/**
* Sets the current session Locale as first segment in the Url.
*
* @see org.apache.wicket.core.request.mapper.HomePageMapper#mapHandler(org.apache.wicket.request.IRequestHandler)
*/
public Url mapHandler(IRequestHandler requestHandler)
{
Url homeUrl = super.mapHandler(requestHandler);
if (homeUrl != null)
{
String locale = Session.get().getLocale().toString();
homeUrl.getSegments().add(0, locale);
}
return homeUrl;
}
/**
* Removes the leading segment if it a valid Locale
*
* @see org.apache.wicket.core.request.mapper.HomePageMapper#mapRequest(org.apache.wicket.request.Request)
*/
public IRequestHandler mapRequest(Request request)
{
IRequestHandler requestHandler = null;
Url url = request.getUrl();
List<String> segments = url.getSegments();
if (segments.size() == 1)
{
String localeAsString = segments.get(0);
Locale locale = LocaleHelper.parseLocale(localeAsString);
if (locale != null)
{
Session.get().setLocale(locale);
segments.remove(0);
Request requestWithoutLocale = request.cloneWithUrl(url);
requestHandler = super.mapRequest(requestWithoutLocale);
}
}
return requestHandler;
}
/**
* If there is just one url segment (the locale?!) then return a bigger compatibility score than
* {@link HomePageMapper#getCompatibilityScore(Request)}
*
* @see org.apache.wicket.core.request.mapper.HomePageMapper#getCompatibilityScore(org.apache.wicket.request.Request)
*/
public int getCompatibilityScore(Request request)
{
return request.getUrl().getSegments().size() == 1 ? 1 : 0;
}
}