| /* |
| * 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.streaming; |
| |
| import java.util.UUID; |
| |
| import com.google.common.base.Predicate; |
| import com.google.common.base.Predicates; |
| |
| import org.apache.cassandra.io.sstable.format.SSTableReader; |
| import org.apache.cassandra.io.sstable.metadata.StatsMetadata; |
| import org.apache.cassandra.repair.PreviewRepairConflictWithIncrementalRepairException; |
| import org.apache.cassandra.repair.consistent.ConsistentSession; |
| import org.apache.cassandra.repair.consistent.LocalSession; |
| import org.apache.cassandra.service.ActiveRepairService; |
| |
| public enum PreviewKind |
| { |
| NONE(0, (sstable) -> { |
| throw new RuntimeException("Can't get preview predicate for preview kind NONE"); |
| }), |
| ALL(1, Predicates.alwaysTrue()), |
| UNREPAIRED(2, sstable -> !sstable.isRepaired()), |
| REPAIRED(3, new PreviewRepairedSSTablePredicate()); |
| |
| private final int serializationVal; |
| private final Predicate<SSTableReader> predicate; |
| |
| PreviewKind(int serializationVal, Predicate<SSTableReader> predicate) |
| { |
| assert ordinal() == serializationVal; |
| this.serializationVal = serializationVal; |
| this.predicate = predicate; |
| } |
| |
| public int getSerializationVal() |
| { |
| return serializationVal; |
| } |
| |
| public static PreviewKind deserialize(int serializationVal) |
| { |
| return values()[serializationVal]; |
| } |
| |
| public boolean isPreview() |
| { |
| return this != NONE; |
| } |
| |
| public String logPrefix() |
| { |
| return isPreview() ? "preview repair" : "repair"; |
| } |
| |
| public String logPrefix(UUID sessionId) |
| { |
| return '[' + logPrefix() + " #" + sessionId.toString() + ']'; |
| } |
| |
| public Predicate<SSTableReader> predicate() |
| { |
| return predicate; |
| } |
| |
| private static class PreviewRepairedSSTablePredicate implements Predicate<SSTableReader> |
| { |
| public boolean apply(SSTableReader sstable) |
| { |
| // grab the metadata before checking pendingRepair since this can be nulled out at any time |
| StatsMetadata sstableMetadata = sstable.getSSTableMetadata(); |
| if (sstableMetadata.pendingRepair != null) |
| { |
| LocalSession session = ActiveRepairService.instance.consistent.local.getSession(sstableMetadata.pendingRepair); |
| if (session == null) |
| return false; |
| else if (session.getState() == ConsistentSession.State.FINALIZED) |
| return true; |
| else if (session.getState() != ConsistentSession.State.FAILED) |
| throw new PreviewRepairConflictWithIncrementalRepairException(String.format("SSTable %s is marked pending for non-finalized incremental repair session %s, failing preview repair", sstable, sstableMetadata.pendingRepair)); |
| } |
| return sstableMetadata.repairedAt != ActiveRepairService.UNREPAIRED_SSTABLE; |
| } |
| } |
| } |