| /** |
| * 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.hdfs.server.namenode.top; |
| |
| import java.net.InetAddress; |
| |
| import com.google.common.base.Preconditions; |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.hdfs.server.namenode.AuditLogger; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.hadoop.hdfs.server.namenode.top.metrics.TopMetrics; |
| |
| /** |
| * An {@link AuditLogger} that sends logged data directly to the metrics |
| * systems. It is used when the top service is used directly by the name node |
| */ |
| @InterfaceAudience.Private |
| public class TopAuditLogger implements AuditLogger { |
| public static final Logger LOG = LoggerFactory.getLogger(TopAuditLogger.class); |
| |
| private final TopMetrics topMetrics; |
| |
| public TopAuditLogger(TopMetrics topMetrics) { |
| Preconditions.checkNotNull(topMetrics, "Cannot init with a null " + |
| "TopMetrics"); |
| this.topMetrics = topMetrics; |
| } |
| |
| @Override |
| public void initialize(Configuration conf) { |
| } |
| |
| @Override |
| public void logAuditEvent(boolean succeeded, String userName, |
| InetAddress addr, String cmd, String src, String dst, FileStatus status) { |
| try { |
| topMetrics.report(succeeded, userName, addr, cmd, src, dst, status); |
| } catch (Throwable t) { |
| LOG.error("An error occurred while reflecting the event in top service, " |
| + "event: (cmd={},userName={})", cmd, userName); |
| } |
| |
| if (LOG.isDebugEnabled()) { |
| final StringBuilder sb = new StringBuilder(); |
| sb.append("allowed=").append(succeeded).append("\t"); |
| sb.append("ugi=").append(userName).append("\t"); |
| sb.append("ip=").append(addr).append("\t"); |
| sb.append("cmd=").append(cmd).append("\t"); |
| sb.append("src=").append(src).append("\t"); |
| sb.append("dst=").append(dst).append("\t"); |
| if (null == status) { |
| sb.append("perm=null"); |
| } else { |
| sb.append("perm="); |
| sb.append(status.getOwner()).append(":"); |
| sb.append(status.getGroup()).append(":"); |
| sb.append(status.getPermission()); |
| } |
| LOG.debug("------------------- logged event for top service: " + sb); |
| } |
| } |
| |
| } |