/*
* 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.ace.webui.vaadin;
import java.io.IOException;
import java.net.URL;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.osgi.framework.BundleContext;
import org.osgi.service.http.HttpContext;
import org.osgi.service.http.HttpService;
public class VaadinResourceHandler {
private static final String RESOURCE_PATH = "/VAADIN";
// Injected by Felix DM...
private volatile HttpService m_http;
private volatile BundleContext m_bundleContext;
public void start() throws Exception {
final HttpContext context = m_http.createDefaultHttpContext();
m_http.registerResources(RESOURCE_PATH, RESOURCE_PATH, new HttpContext() {
public String getMimeType(String name) {
return context.getMimeType(name);
}
/**
* ACE uses a slightly modified version of the 'reindeer' theme. To avoid having to copy all resources in
* the Vaadin jar, we only override the files we changed and do replace the theme name 'ace' with 'reindeer'
* before we go looking for the original files.
*
* When updating to a new Vaadin version, usually you need to copy the styles.css file from the original
* archive again and append the ACE changes to the end, as this file tends to change considerably between
* versions.
*/
public URL getResource(String name) {
URL resource = null;
// fix for ACE-156
if (!name.startsWith("/")) {
name = "/".concat(name);
}
String prefix = RESOURCE_PATH.concat("/");
if (name.startsWith(prefix)) {
String originalName = name.replace("/ace/", "/reindeer/");
resource = m_bundleContext.getBundle().getEntry(originalName);
if (resource == null) {
// try to find the resource in the Vaadin bundle instead
resource = com.vaadin.Application.class.getResource(originalName);
}
}
return resource;
}
public boolean handleSecurity(HttpServletRequest request, HttpServletResponse response) throws IOException {
return context.handleSecurity(request, response);
}
});
}
public void stop() throws Exception {
m_http.unregister(RESOURCE_PATH);
}
}