| /** |
| * 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.triggers; |
| |
| import java.io.InputStream; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Properties; |
| |
| import org.apache.cassandra.schema.TableMetadata; |
| import org.apache.cassandra.schema.Schema; |
| import org.apache.cassandra.db.Mutation; |
| import org.apache.cassandra.db.partitions.Partition; |
| import org.apache.cassandra.db.partitions.PartitionUpdate; |
| import org.apache.cassandra.io.util.FileUtils; |
| import org.apache.cassandra.utils.FBUtilities; |
| import org.apache.cassandra.utils.TimeUUID; |
| |
| public class AuditTrigger implements ITrigger |
| { |
| private static final String AUDIT_PROPERTIES_FILE_NAME = "AuditTrigger.properties"; |
| |
| private final Properties properties; |
| private final String auditKeyspace; |
| private final String auditTable; |
| |
| public AuditTrigger() |
| { |
| properties = loadProperties(); |
| auditKeyspace = properties.getProperty("keyspace"); |
| auditTable = properties.getProperty("table"); |
| } |
| |
| public Collection<Mutation> augment(Partition update) |
| { |
| TableMetadata metadata = Schema.instance.getTableMetadata(auditKeyspace, auditTable); |
| PartitionUpdate.SimpleBuilder audit = PartitionUpdate.simpleBuilder(metadata, TimeUUID.Generator.nextTimeUUID()); |
| |
| audit.row() |
| .add("keyspace_name", update.metadata().keyspace) |
| .add("table_name", update.metadata().name) |
| .add("primary_key", update.metadata().partitionKeyType.getString(update.partitionKey().getKey())); |
| |
| return Collections.singletonList(audit.buildAsMutation()); |
| } |
| |
| private static Properties loadProperties() |
| { |
| Properties properties = new Properties(); |
| InputStream stream = AuditTrigger.class.getClassLoader().getResourceAsStream(AUDIT_PROPERTIES_FILE_NAME); |
| try |
| { |
| properties.load(stream); |
| } |
| catch (Exception e) |
| { |
| throw new RuntimeException(e); |
| } |
| finally |
| { |
| FileUtils.closeQuietly(stream); |
| } |
| return properties; |
| } |
| } |