hadoop HttpRequestLog 源码
haddop HttpRequestLog 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/http/HttpRequestLog.java
/**
* 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.http;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jetty.server.CustomRequestLog;
import org.eclipse.jetty.server.RequestLog;
import org.eclipse.jetty.server.Slf4jRequestLogWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* RequestLog object for use with Http
*/
public class HttpRequestLog {
public static final Logger LOG =
LoggerFactory.getLogger(HttpRequestLog.class);
private static final Map<String, String> serverToComponent;
static {
Map<String, String > map = new HashMap<String, String>();
map.put("cluster", "resourcemanager");
map.put("hdfs", "namenode");
map.put("node", "nodemanager");
serverToComponent = Collections.unmodifiableMap(map);
}
public static RequestLog getRequestLog(String name) {
String lookup = serverToComponent.get(name);
if (lookup != null) {
name = lookup;
}
String loggerName = "http.requests." + name;
Slf4jRequestLogWriter writer = new Slf4jRequestLogWriter();
writer.setLoggerName(loggerName);
return new CustomRequestLog(writer, CustomRequestLog.EXTENDED_NCSA_FORMAT);
}
private HttpRequestLog() {
}
}
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