| /** |
| * 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.metron.dataloads.hbase.mr; |
| |
| import org.apache.hadoop.hbase.client.*; |
| import org.apache.hadoop.hbase.io.ImmutableBytesWritable; |
| import org.apache.hadoop.hbase.mapreduce.TableMapper; |
| import org.apache.metron.enrichment.lookup.LookupKey; |
| import org.apache.metron.enrichment.lookup.accesstracker.AccessTracker; |
| import org.apache.metron.enrichment.lookup.accesstracker.AccessTrackerUtil; |
| |
| import java.io.IOException; |
| |
| public class PrunerMapper extends TableMapper<ImmutableBytesWritable, Delete> { |
| public static final String ACCESS_TRACKER_TABLE_CONF = "access_tracker_table"; |
| public static final String ACCESS_TRACKER_CF_CONF = "access_tracker_cf"; |
| public static final String TIMESTAMP_CONF = "access_tracker_timestamp"; |
| public static final String ACCESS_TRACKER_NAME_CONF = "access_tracker_name"; |
| AccessTracker tracker; |
| @Override |
| public void setup(Context context) throws IOException |
| { |
| String atTable = context.getConfiguration().get(ACCESS_TRACKER_TABLE_CONF); |
| String atCF = context.getConfiguration().get(ACCESS_TRACKER_CF_CONF); |
| String atName = context.getConfiguration().get(ACCESS_TRACKER_NAME_CONF); |
| HTable table = new HTable(context.getConfiguration(), atTable); |
| long timestamp = context.getConfiguration().getLong(TIMESTAMP_CONF, -1); |
| if(timestamp < 0) { |
| throw new IllegalStateException("Must specify a timestamp that is positive."); |
| } |
| try { |
| tracker = AccessTrackerUtil.INSTANCE.loadAll(AccessTrackerUtil.INSTANCE.loadAll(table, atCF, atName, timestamp)); |
| } catch (Throwable e) { |
| throw new IllegalStateException("Unable to load the accesstrackers from the directory", e); |
| } |
| } |
| |
| @Override |
| public void map(ImmutableBytesWritable key, Result value, Context context) throws IOException, InterruptedException { |
| if(tracker == null || key == null) { |
| throw new RuntimeException("Tracker = " + tracker + " key = " + key); |
| } |
| if(!tracker.hasSeen(toLookupKey(key.get()))) { |
| Delete d = new Delete(key.get()); |
| context.write(key, d); |
| } |
| } |
| |
| protected LookupKey toLookupKey(final byte[] bytes) { |
| return new LookupKey() { |
| @Override |
| public byte[] toBytes() { |
| return bytes; |
| } |
| |
| @Override |
| public void fromBytes(byte[] in) { |
| |
| } |
| |
| @Override |
| public String getIndicator() { |
| return null; |
| } |
| |
| @Override |
| public void setIndicator(String indicator) { |
| |
| } |
| }; |
| } |
| |
| } |