| /* |
| * 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.cassandra.audit; |
| |
| import java.nio.file.Paths; |
| import java.util.Map; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.primitives.Ints; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import net.openhft.chronicle.wire.WireOut; |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.apache.cassandra.utils.ObjectSizes; |
| import org.apache.cassandra.utils.binlog.BinLog; |
| import org.apache.cassandra.utils.concurrent.WeightedQueue; |
| |
| public class BinAuditLogger implements IAuditLogger |
| { |
| public static final long CURRENT_VERSION = 0; |
| public static final String AUDITLOG_TYPE = "audit"; |
| public static final String AUDITLOG_MESSAGE = "message"; |
| private static final Logger logger = LoggerFactory.getLogger(BinAuditLogger.class); |
| |
| private volatile BinLog binLog; |
| |
| public BinAuditLogger(Map<String, String> params) |
| { |
| AuditLogOptions auditLoggingOptions = DatabaseDescriptor.getAuditLoggingOptions(); |
| |
| this.binLog = new BinLog.Builder().path(Paths.get(auditLoggingOptions.audit_logs_dir)) |
| .rollCycle(auditLoggingOptions.roll_cycle) |
| .blocking(auditLoggingOptions.block) |
| .maxQueueWeight(auditLoggingOptions.max_queue_weight) |
| .maxLogSize(auditLoggingOptions.max_log_size) |
| .archiveCommand(auditLoggingOptions.archive_command) |
| .maxArchiveRetries(auditLoggingOptions.max_archive_retries) |
| .build(false); |
| } |
| |
| /** |
| * Stop the audit log leaving behind any generated files. |
| */ |
| public synchronized void stop() |
| { |
| try |
| { |
| logger.info("Deactivation of audit log requested."); |
| if (binLog != null) |
| { |
| logger.info("Stopping audit logger"); |
| binLog.stop(); |
| binLog = null; |
| } |
| } |
| catch (Exception e) |
| { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| public boolean isEnabled() |
| { |
| return binLog != null; |
| } |
| |
| @Override |
| public void log(AuditLogEntry auditLogEntry) |
| { |
| BinLog binLog = this.binLog; |
| if (binLog == null || auditLogEntry == null) |
| { |
| return; |
| } |
| binLog.logRecord(new Message(auditLogEntry.getLogString())); |
| } |
| |
| |
| @VisibleForTesting |
| public static class Message extends BinLog.ReleaseableWriteMarshallable implements WeightedQueue.Weighable |
| { |
| private final String message; |
| |
| public Message(String message) |
| { |
| this.message = message; |
| } |
| |
| protected long version() |
| { |
| return CURRENT_VERSION; |
| } |
| |
| protected String type() |
| { |
| return AUDITLOG_TYPE; |
| } |
| |
| @Override |
| public void writeMarshallablePayload(WireOut wire) |
| { |
| wire.write(AUDITLOG_MESSAGE).text(message); |
| } |
| |
| @Override |
| public void release() |
| { |
| |
| } |
| |
| @Override |
| public int weight() |
| { |
| return Ints.checkedCast(ObjectSizes.sizeOf(message)); |
| } |
| } |
| } |