/**
* 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.hadoop.hdfsproxy;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import javax.servlet.http.HttpServletRequest;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.hdfs.protocol.ClientProtocol;
import org.apache.hadoop.hdfs.server.namenode.FileDataServlet;
import org.apache.hadoop.security.UnixUserGroupInformation;
/** {@inheritDoc} */
public class ProxyFileDataServlet extends FileDataServlet {
/** For java.io.Serializable */
private static final long serialVersionUID = 1L;
/** {@inheritDoc} */
@Override
protected URI createUri(FileStatus i, UnixUserGroupInformation ugi,
ClientProtocol nnproxy, HttpServletRequest request) throws IOException,
URISyntaxException {
return new URI(request.getScheme(), null, request.getServerName(), request
.getServerPort(), "/streamFile", "filename=" + i.getPath() + "&ugi="
+ ugi, null);
}
/** {@inheritDoc} */
@Override
protected UnixUserGroupInformation getUGI(HttpServletRequest request) {
return (UnixUserGroupInformation) request.getAttribute("authorized.ugi");
}
}