/**
* 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.yarn.server.webproxy.amfilter;
import java.util.HashMap;
import java.util.Map;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.http.FilterContainer;
import org.apache.hadoop.http.FilterInitializer;
import org.apache.hadoop.http.HttpConfig;
import org.apache.hadoop.yarn.api.ApplicationConstants;
import org.apache.hadoop.yarn.webapp.util.WebAppUtils;
public class AmFilterInitializer extends FilterInitializer {
private static final String FILTER_NAME = "AM_PROXY_FILTER";
private static final String FILTER_CLASS = AmIpFilter.class.getCanonicalName();
@Override
public void initFilter(FilterContainer container, Configuration conf) {
Map<String, String> params = new HashMap<String, String>();
String proxy = WebAppUtils.getProxyHostAndPort(conf);
String[] parts = proxy.split(":");
params.put(AmIpFilter.PROXY_HOST, parts[0]);
params.put(AmIpFilter.PROXY_URI_BASE,
HttpConfig.getSchemePrefix() + proxy +
System.getenv(ApplicationConstants.APPLICATION_WEB_PROXY_BASE_ENV));
container.addFilter(FILTER_NAME, FILTER_CLASS, params);
}
}