/*
* Copyright 2010 reto.
*
* 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.
* under the License.
*/
package org.apache.clerezza.web.fileserver;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.WebApplicationException;
import org.wymiwyg.commons.util.dirbrowser.PathNode;
/**
* An abstract superclass of jax-rs resources serving files. Subclasses
* overwrite the <code>getPathNode</code>-method to return the root of their
* hierachy.
*
* @author reto
*/
public abstract class AbstractFileServer {
/**
* This method return the root of the served hierarchy. For example
* if the instance is to server all Files in /var/www, this method would
* return an instance of org.wymiwyg.commons.util.dirbrowser.FilePathNode
* initialized with "/var/www".
*
* @return the root of the served hierarchy
*/
protected abstract PathNode getRootNode();
@Path("{path:.*}")
@GET
public PathNode getNode(@PathParam("path") String path) {
String[] pathSections = path.split("/");
PathNode current = getRootNode();
for (String pathSection : pathSections) {
current = current.getSubPath(pathSection);
if (!current.exists()) {
throw new WebApplicationException(404);
}
}
return current;
}
}