| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.hbase.replication; |
| |
| import java.util.List; |
| import org.apache.hadoop.hbase.HBaseInterfaceAudience; |
| import org.apache.hadoop.hbase.wal.WAL; |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting; |
| |
| /** |
| * A {@link ChainWALEntryFilter} for providing more flexible options |
| */ |
| @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.REPLICATION) |
| public class ChainWALEmptyEntryFilter extends ChainWALEntryFilter { |
| |
| private boolean filterEmptyEntry = false; |
| |
| public ChainWALEmptyEntryFilter(final WALEntryFilter... filters) { |
| super(filters); |
| } |
| |
| public ChainWALEmptyEntryFilter(final List<WALEntryFilter> filters) { |
| super(filters); |
| } |
| |
| @Override |
| public WAL.Entry filter(WAL.Entry entry) { |
| entry = super.filter(entry); |
| if (filterEmptyEntry && entry != null && entry.getEdit().isEmpty()) { |
| return null; |
| } |
| return entry; |
| } |
| |
| /** |
| * To allow the empty entries to get filtered, we want to set this optional flag to decide |
| * if we want to filter the entries which have no cells or all cells got filtered |
| * though {@link WALCellFilter}. |
| * |
| * @param filterEmptyEntry flag |
| */ |
| @VisibleForTesting |
| public void setFilterEmptyEntry(final boolean filterEmptyEntry) { |
| this.filterEmptyEntry = filterEmptyEntry; |
| } |
| } |