/*
* Copyright 2011 <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
*
* Licensed 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.ocpsoft.rewrite.servlet.config;
import java.io.IOException;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletResponse;
import org.ocpsoft.rewrite.config.Configuration;
import org.ocpsoft.rewrite.config.ConfigurationBuilder;
import org.ocpsoft.rewrite.config.Direction;
import org.ocpsoft.rewrite.context.EvaluationContext;
import org.ocpsoft.rewrite.servlet.config.rule.CDN;
import org.ocpsoft.rewrite.servlet.http.event.HttpServletRewrite;
/**
* @author <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
*
*/
public class CDNConfigurationProvider extends HttpConfigurationProvider
{
@Override
public int priority()
{
return 0;
}
/**
* <b>Outbound:</b><br>
* -----------<br>
* If URL matches path convert the URL to the form specified by resource.
*/
@Override
public Configuration getConfiguration(final ServletContext context)
{
Configuration config = ConfigurationBuilder
.begin()
/*
* Set up our rule (This does the work.)
*/
.addRule(CDN.relocate("{p}jquery{s}.js")
.to("http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"))
.where("p").matches(".*")
.where("s").matches(".*")
.addRule(CDN.relocate("{p}foo-{version}.js")
.to("http://mycdn.com/foo-{version}.js"))
.where("p").matches(".*")
.where("version").matches(".*")
// URL without a schema
.addRule(CDN.relocate("{*}/angular.min.js")
.to("//ajax.googleapis.com/ajax/libs/angularjs/1.0.6/angular.min.js"))
/*
* Now send a response to our test case containing the relocated resource.
*/
.addRule().when(Direction.isInbound().and(Path.matches("/relocate")))
.perform(new HttpOperation() {
@Override
public void performHttp(final HttpServletRewrite event, final EvaluationContext context)
{
try {
HttpServletResponse response = event.getResponse();
response.getWriter().write(response.encodeURL("/jquery.min.js"));
response.getWriter().write(response.encodeURL("/something/foo-1.2.3.js"));
response.getWriter().write("[" + response.encodeURL("/somewwhere/angular.min.js") + "]");
SendStatus.code(200).perform(event, context);
}
catch (IOException e) {
throw new RuntimeException(e);
}
}
});
return config;
}
}