| /*- |
| * Copyright (C) 2002, 2018, Oracle and/or its affiliates. All rights reserved. |
| * |
| * This file was distributed by Oracle as part of a version of Oracle Berkeley |
| * DB Java Edition made available at: |
| * |
| * http://www.oracle.com/technetwork/database/database-technologies/berkeleydb/downloads/index.html |
| * |
| * Please see the LICENSE file included in the top-level directory of the |
| * appropriate version of Oracle Berkeley DB Java Edition for a copy of the |
| * license and additional information. |
| */ |
| |
| package com.sleepycat.je.cleaner; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import com.sleepycat.bind.tuple.LongBinding; |
| import com.sleepycat.bind.tuple.TupleBase; |
| import com.sleepycat.bind.tuple.TupleInput; |
| import com.sleepycat.bind.tuple.TupleOutput; |
| import com.sleepycat.je.DatabaseEntry; |
| import com.sleepycat.je.dbi.DatabaseId; |
| import com.sleepycat.je.utilint.VLSN; |
| |
| /** |
| */ |
| public class ReservedFileInfo { |
| public final VLSN firstVLSN; |
| public final VLSN lastVLSN; |
| public final Set<DatabaseId> dbIds; |
| |
| ReservedFileInfo(final VLSN firstVLSN, |
| final VLSN lastVLSN, |
| final Set<DatabaseId> dbIds) { |
| this.firstVLSN = firstVLSN; |
| this.lastVLSN = lastVLSN; |
| this.dbIds = dbIds; |
| } |
| |
| public static Long entryToKey(final DatabaseEntry entry) { |
| return LongBinding.entryToLong(entry); |
| } |
| |
| public static void keyToEntry(Long key, final DatabaseEntry entry) { |
| LongBinding.longToEntry(key, entry); |
| } |
| |
| public static ReservedFileInfo entryToObject(final DatabaseEntry entry) { |
| final TupleInput input = TupleBase.entryToInput(entry); |
| input.readByte(); /* Future flags. */ |
| final VLSN firstVLSN = new VLSN(input.readPackedLong()); |
| final VLSN lastVLSN = new VLSN(input.readPackedLong()); |
| final Set<DatabaseId> dbIds = new HashSet<>(); |
| final int nDbs = input.readPackedInt(); |
| for (int i = 0; i < nDbs; i += 1) { |
| dbIds.add(new DatabaseId(input.readPackedLong())); |
| } |
| return new ReservedFileInfo(firstVLSN, lastVLSN, dbIds); |
| } |
| |
| public static void objectToEntry(final ReservedFileInfo info, |
| final DatabaseEntry entry) { |
| final TupleOutput output = new TupleOutput(); |
| output.writeByte(0); /* Future flags. */ |
| output.writePackedLong(info.firstVLSN.getSequence()); |
| output.writePackedLong(info.lastVLSN.getSequence()); |
| output.writePackedInt(info.dbIds.size()); |
| for (final DatabaseId id : info.dbIds) { |
| output.writePackedLong(id.getId()); |
| } |
| TupleBase.outputToEntry(output, entry); |
| } |
| } |