/**
* Copyright 2010 Marko Lavikainen
*
* 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 net.contextfw.web.application.internal.servlet;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import net.contextfw.web.application.component.Component;
/**
* Partly adapted from Guice 3 to provide identical path matching
*/
public class RegexUriMapping extends UriMapping {
private final Pattern pattern;
public RegexUriMapping(Class<? extends Component> viewClass,
String path,
InitServlet initServlet,
Map<String, Pattern> variables) {
super(viewClass, path, initServlet, Type.REGEX, variables);
this.pattern = Pattern.compile(path);
}
@Override
public boolean matches(String uri) {
return null != uri && this.pattern.matcher(uri).matches();
}
@Override
public String extractPath(String path) {
Matcher matcher = pattern.matcher(path);
if (matcher.matches() && matcher.groupCount() >= 1) {
int end = matcher.start(1);
if (end < path.length()) {
return path.substring(0, end);
}
}
return null;
}
}