haeaeae/duplicati
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
d8972b0f2b0b8fdc851c2c680876c8d2e2ba0bf2
duplicati/Duplicati/Library/Main/Database/LocalBackupDatabase.cs
T

680 lines
39 KiB
C#
Raw Blame History

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace Duplicati.Library.Main.Database
{
internal class LocalBackupDatabase : LocalDatabase
{
private class PathEntryKeeper
{
public DateTime Lastmodified;
public long FileID;
public long Filesize;
public string Metahash;
public long Metasize;
private SortedList<KeyValuePair<long, long>, long> m_versions;
public PathEntryKeeper(long fileId, DateTime lastmodified, long filesize, string metahash, long metasize)
{
this.FileID = fileId;
this.Lastmodified = lastmodified;
this.Filesize = filesize;
this.Metahash = metahash;
this.Metasize = metasize;
this.m_versions = null;
}
public long GetFilesetID(long blocksetId, long metadataId)
{
if (m_versions == null)
return -1;
long r;
if (!m_versions.TryGetValue(new KeyValuePair<long, long>(blocksetId, metadataId), out r))
return -1;
else
return r;
}
public void AddFilesetID(long blocksetId, long metadataId, long filesetId)
{
if (m_versions == null)
m_versions = new SortedList<KeyValuePair<long, long>, long>(1, new KeyValueComparer());
m_versions.Add(new KeyValuePair<long, long>(blocksetId, metadataId), filesetId);
}
private struct KeyValueComparer : IComparer<KeyValuePair<long, long>>
{
public int Compare(KeyValuePair<long, long> x, KeyValuePair<long, long> y)
{
return x.Key == y.Key ?
(x.Value == y.Value ?
0
: (x.Value < y.Value ? -1 : 1))
: (x.Key < y.Key ? -1 : 1);
}
}
}
private readonly System.Data.IDbCommand m_findblockCommand;
private readonly System.Data.IDbCommand m_findblocksetCommand;
private readonly System.Data.IDbCommand m_findfilesetCommand;
private readonly System.Data.IDbCommand m_findmetadatasetCommand;
private readonly System.Data.IDbCommand m_insertblockCommand;
private readonly System.Data.IDbCommand m_insertfileCommand;
private readonly System.Data.IDbCommand m_insertblocksetCommand;
private readonly System.Data.IDbCommand m_insertblocksetentryFastCommand;
private readonly System.Data.IDbCommand m_insertblocksetentryCommand;
private readonly System.Data.IDbCommand m_insertblocklistHashesCommand;
private readonly System.Data.IDbCommand m_insertmetadatasetCommand;
private readonly System.Data.IDbCommand m_selectfileSimpleCommand;
private readonly System.Data.IDbCommand m_selectfileHashCommand;
private readonly System.Data.IDbCommand m_selectblocklistHashesCommand;
private readonly System.Data.IDbCommand m_insertfileOperationCommand;
private PathLookupHelper<PathEntryKeeper> m_pathLookup;
private long m_missingBlockHashes;
private long m_filesetId;
public LocalBackupDatabase(string path, Options options)
: this(new LocalDatabase(path, "Backup", false), options)
{
this.ShouldCloseConnection = true;
}
public LocalBackupDatabase(LocalDatabase db, Options options)
: base(db)
{
m_findblockCommand = m_connection.CreateCommand();
m_insertblockCommand = m_connection.CreateCommand();
m_insertfileCommand = m_connection.CreateCommand();
m_insertblocksetCommand = m_connection.CreateCommand();
m_insertmetadatasetCommand = m_connection.CreateCommand();
m_findblocksetCommand = m_connection.CreateCommand();
m_findmetadatasetCommand = m_connection.CreateCommand();
m_findfilesetCommand = m_connection.CreateCommand();
m_insertblocksetentryCommand = m_connection.CreateCommand();
m_insertblocklistHashesCommand = m_connection.CreateCommand();
m_selectblocklistHashesCommand = m_connection.CreateCommand();
m_insertfileOperationCommand = m_connection.CreateCommand();
m_selectfileSimpleCommand = m_connection.CreateCommand();
m_selectfileHashCommand = m_connection.CreateCommand();
m_insertblocksetentryFastCommand = m_connection.CreateCommand();
m_findblockCommand.CommandText = @"SELECT ""ID"" FROM ""Block"" WHERE ""Hash"" = ? AND ""Size"" = ?";
m_findblockCommand.AddParameters(2);
m_findblocksetCommand.CommandText = @"SELECT ""ID"" FROM ""Blockset"" WHERE ""Fullhash"" = ? AND ""Length"" = ?";
m_findblocksetCommand.AddParameters(2);
m_findmetadatasetCommand.CommandText = @"SELECT ""A"".""ID"" FROM ""Metadataset"" A, ""BlocksetEntry"" B, ""Block"" C WHERE ""A"".""BlocksetID"" = ""B"".""BlocksetID"" AND ""B"".""BlockID"" = ""C"".""ID"" AND ""C"".""Hash"" = ? AND ""C"".""Size"" = ?";
m_findmetadatasetCommand.AddParameters(2);
m_findfilesetCommand.CommandText = @"SELECT ""ID"" FROM ""File"" WHERE ""BlocksetID"" = ? AND ""MetadataID"" = ? AND ""Path"" = ?";
m_findfilesetCommand.AddParameters(3);
m_insertblockCommand.CommandText = @"INSERT INTO ""Block"" (""Hash"", ""VolumeID"", ""Size"") VALUES (?, ?, ?); SELECT last_insert_rowid();";
m_insertblockCommand.AddParameters(3);
m_insertfileOperationCommand.CommandText = @"INSERT INTO ""FilesetEntry"" (""FilesetID"", ""FileID"", ""Lastmodified"") VALUES (?, ?, ?)";
m_insertfileOperationCommand.AddParameters(3);
m_insertfileCommand.CommandText = @"INSERT INTO ""File"" (""Path"",""BlocksetID"", ""MetadataID"") VALUES (?, ? ,?); SELECT last_insert_rowid();";
m_insertfileCommand.AddParameters(3);
m_insertblocksetCommand.CommandText = @"INSERT INTO ""Blockset"" (""Length"", ""FullHash"") VALUES (?, ?); SELECT last_insert_rowid();";
m_insertblocksetCommand.AddParameters(2);
m_insertblocksetentryFastCommand.CommandText = @"INSERT INTO ""BlocksetEntry"" (""BlocksetID"", ""Index"", ""BlockID"") VALUES (?,?,?)";
m_insertblocksetentryFastCommand.AddParameters(3);
m_insertblocksetentryCommand.CommandText = @"INSERT INTO ""BlocksetEntry"" (""BlocksetID"", ""Index"", ""BlockID"") SELECT ? AS A, ? AS B, ""ID"" FROM ""Block"" WHERE ""Hash"" = ? AND ""Size"" = ?";
m_insertblocksetentryCommand.AddParameters(4);
m_insertblocklistHashesCommand.CommandText = @"INSERT INTO ""BlocklistHash"" (""BlocksetID"", ""Index"", ""Hash"") VALUES (?, ?, ?)";
m_insertblocklistHashesCommand.AddParameters(3);
m_insertmetadatasetCommand.CommandText = @"INSERT INTO ""Metadataset"" (""BlocksetID"") VALUES (?); SELECT last_insert_rowid();";
m_insertmetadatasetCommand.AddParameter();
//Need a temporary table with path/lastmodified lookups
m_selectfileSimpleCommand.CommandText =
@" SELECT ""File"".""ID"" AS ""FileID"", ""FilesetEntry"".""Lastmodified"", ""FileBlockset"".""Length"", ""MetaBlockset"".""Fullhash"" AS ""Metahash"", ""MetaBlockset"".""Length"" AS ""Metasize"" " +
@" FROM ""File"", ""FilesetEntry"", ""Fileset"", ""Blockset"" ""FileBlockset"", ""Metadataset"", ""Blockset"" ""MetaBlockset"" " +
@" WHERE ""File"".""Path"" = ? " +
@" AND ""FilesetEntry"".""FileID"" = ""File"".""ID"" AND ""Fileset"".""ID"" = ""FilesetEntry"".""FilesetID"" " +
@" AND ""FileBlockset"".""ID"" = ""File"".""BlocksetID"" " +
@" AND ""Metadataset"".""ID"" = ""File"".""MetadataID"" AND ""MetaBlockset"".""ID"" = ""Metadataset"".""BlocksetID"" " +
@" ORDER BY ""Fileset"".""Timestamp"" DESC " +
@" LIMIT 1 ";
m_selectfileSimpleCommand.AddParameters(1);
m_selectfileHashCommand.CommandText = @"SELECT ""Blockset"".""Fullhash"" FROM ""Blockset"", ""File"" WHERE ""Blockset"".""ID"" = ""File"".""BlocksetID"" AND ""File"".""ID"" = ? ";
m_selectfileHashCommand.AddParameters(1);
m_selectblocklistHashesCommand.CommandText = @"SELECT ""Hash"" FROM ""BlocklistHash"" WHERE ""BlocksetID"" = ? ORDER BY ""Index"" ASC ";
m_selectblocklistHashesCommand.AddParameters(1);
}
/// <summary>
/// Builds the lookup tables. Call this method after deleting items, and before processing items
/// </summary>
/// <param name="options">The option settings</param>
public void BuildLookupTable(Options options)
{
if (options.UseFilepathCache)
m_pathLookup = new PathLookupHelper<PathEntryKeeper>(true);
//Populate the lookup tables
using (var cmd = m_connection.CreateCommand())
{
//Need a temporary table with path/lastmodified lookups
var scantableDefinition =
@"SELECT ""A1"".""ID"" AS ""FileID"", ""A1"".""Lastmodified"" AS ""Lastmodified"", ""A1"".""Path"" AS ""Path"", ""C"".""Length"" AS ""Length"", ""F"".""Fullhash"" AS ""Metahash"", ""F"".""Length"" AS ""Metasize"", ""A1"".""BlocksetID"" " +
@" FROM (SELECT ""File"".""ID"", ""File"".""BlocksetID"", ""File"".""MetadataID"", ""FilesetEntry"".""Lastmodified"", ""File"".""Path"", ""Fileset"".""Timestamp"" " +
@" FROM ""FilesetEntry"", ""Fileset"", ""File"" WHERE ""Fileset"".""ID"" = ""FilesetEntry"".""FilesetID"" AND ""File"".""ID"" = ""FilesetEntry"".""FileID"" " +
@" ) ""A1"" LEFT JOIN " +
@" (SELECT ""File"".""Path"", ""Fileset"".""Timestamp"" " +
@" FROM ""FilesetEntry"", ""Fileset"", ""File"" WHERE ""Fileset"".""ID"" = ""FilesetEntry"".""FilesetID"" AND ""File"".""ID"" = ""FilesetEntry"".""FileID"" " +
@" ) ""A2"" ON ""A1"".""Path"" = ""A2"".""Path"" AND ""A1"".""Timestamp"" < ""A2"".""Timestamp"" " +
@" , ""Blockset"" ""C"", ""Metadataset"" ""E"", ""Blockset"" ""F"" " +
@" WHERE ""A2"".""Path"" IS NULL " +
@" AND ""C"".""ID"" = ""A1"".""BlocksetID"" " +
@" AND ""A1"".""MetadataID"" = ""E"".""ID"" " +
@" AND ""F"".""ID"" = ""E"".""BlocksetID"" ";
if (m_pathLookup != null)
using(new Logging.Timer("Build path lastmodified lookup table"))
using (var rd = cmd.ExecuteReader(string.Format(@" SELECT ""FileID"", ""Lastmodified"", ""Length"", ""Path"", ""Metahash"", ""Metasize"" FROM ({0}) WHERE ""BlocksetID"" >= 0 ", scantableDefinition)))
while (rd.Read())
{
var id = rd.GetInt64(0);
var lastmodified = new DateTime(rd.GetInt64(1), DateTimeKind.Utc);
var filesize = rd.GetInt64(2);
var path = rd.GetString(3);
var metahash = rd.GetString(4);
var metasize = rd.GetInt64(5);
m_pathLookup.Insert(path, new PathEntryKeeper(id, lastmodified, filesize, metahash, metasize));
}
if (m_pathLookup != null)
try
{
using(new Logging.Timer("Build path lookup table"))
using (var rd = cmd.ExecuteReader(string.Format(@" SELECT ""Path"", ""BlocksetID"", ""MetadataID"", ""ID"" FROM ""File"" ")))
while (rd.Read())
{
var path = rd.GetValue(0).ToString();
var blocksetid = rd.GetInt64(1);
var metadataid = rd.GetInt64(2);
var filesetid = rd.GetInt64(3);
PathEntryKeeper r;
if (!m_pathLookup.TryFind(path, out r))
{
r = new PathEntryKeeper(-1, new DateTime(0, DateTimeKind.Utc), -1, null, -1);
r.AddFilesetID(blocksetid, metadataid, filesetid);
m_pathLookup.Insert(path, r);
}
else
r.AddFilesetID(blocksetid, metadataid, filesetid);
}
}
catch (Exception ex)
{
throw new InvalidDataException("Duplicate file entries detected, run repair to fix it", ex);
}
m_missingBlockHashes = cmd.ExecuteScalarInt64(@"SELECT COUNT (*) FROM (SELECT DISTINCT ""Block"".""Hash"", ""Block"".""Size"" FROM ""Block"", ""RemoteVolume"" WHERE ""RemoteVolume"".""ID"" = ""Block"".""VolumeID"" AND ""RemoteVolume"".""State"" NOT IN (?,?,?,?))", 0, RemoteVolumeState.Temporary.ToString(), RemoteVolumeState.Uploading.ToString(), RemoteVolumeState.Uploaded.ToString(), RemoteVolumeState.Verified.ToString());
var tc = cmd.ExecuteScalarInt64(@"SELECT COUNT(*) FROM ""Remotevolume"" WHERE ""ID"" IN (SELECT DISTINCT ""VolumeID"" FROM ""Block"") AND ""State"" NOT IN (?, ?, ?, ?);", 0, RemoteVolumeState.Temporary.ToString(), RemoteVolumeState.Uploading.ToString(), RemoteVolumeState.Uploaded.ToString(), RemoteVolumeState.Verified.ToString());
if (tc > 0)
throw new InvalidDataException("Detected blocks that are not reachable in the block table");
}
}
/// <summary>
/// Adds a block to the local database, returning a value indicating if the value presents a new block
/// </summary>
/// <param name="key">The block key</param>
/// <param name="archivename">The name of the archive that holds the data</param>
/// <returns>True if the block should be added to the current output</returns>
public bool AddBlock (string key, long size, long volumeid, System.Data.IDbTransaction transaction = null)
{
m_findblockCommand.Transaction = transaction;
m_findblockCommand.SetParameterValue(0, key);
m_findblockCommand.SetParameterValue(1, size);
var r = m_findblockCommand.ExecuteScalarInt64(-1);
if (r == -1L)
{
m_insertblockCommand.Transaction = transaction;
m_insertblockCommand.SetParameterValue(0, key);
m_insertblockCommand.SetParameterValue(1, volumeid);
m_insertblockCommand.SetParameterValue(2, size);
r = m_insertblockCommand.ExecuteScalarInt64();
return true;
}
else
{
//Update lookup cache if required
return false;
}
}
/// <summary>
/// Adds a blockset to the database, returns a value indicating if the blockset is new
/// </summary>
/// <param name="filehash">The hash of the blockset</param>
/// <param name="size">The size of the blockset</param>
/// <param name="fragmentoffset">The fragmentoffset for the last block</param>
/// <param name="fragmenthash">The hash of the fragment</param>
/// <param name="hashes">The list of hashes</param>
/// <param name="blocksetid">The id of the blockset, new or old</param>
/// <returns>True if the blockset was created, false otherwise</returns>
public bool AddBlockset(string filehash, long size, int blocksize, IEnumerable<string> hashes, IEnumerable<string> blocklistHashes, out long blocksetid, System.Data.IDbTransaction transaction = null)
{
m_findblocksetCommand.Transaction = transaction;
blocksetid = m_findblocksetCommand.ExecuteScalarInt64(null, -1, filehash, size);
if (blocksetid != -1)
return false; //Found it
using(var tr = new TemporaryTransactionWrapper(m_connection, transaction))
{
m_insertblocksetCommand.Transaction = tr.Parent;
m_insertblocksetCommand.SetParameterValue(0, size);
m_insertblocksetCommand.SetParameterValue(1, filehash);
blocksetid = m_insertblocksetCommand.ExecuteScalarInt64();
long ix = 0;
if (blocklistHashes != null)
{
m_insertblocklistHashesCommand.SetParameterValue(0, blocksetid);
m_insertblocklistHashesCommand.Transaction = tr.Parent;
foreach(var bh in blocklistHashes)
{
m_insertblocklistHashesCommand.SetParameterValue(1, ix);
m_insertblocklistHashesCommand.SetParameterValue(2, bh);
m_insertblocklistHashesCommand.ExecuteNonQuery();
ix++;
}
}
m_insertblocksetentryCommand.SetParameterValue(0, blocksetid);
m_insertblocksetentryCommand.Transaction = tr.Parent;
m_insertblocksetentryFastCommand.SetParameterValue(0, blocksetid);
m_insertblocksetentryFastCommand.Transaction = tr.Parent;
ix = 0;
long remainsize = size;
foreach(var h in hashes)
{
var exsize = remainsize < blocksize ? remainsize : blocksize;
var found = false;
if (!found)
{
m_insertblocksetentryCommand.SetParameterValue(1, ix);
m_insertblocksetentryCommand.SetParameterValue(2, h);
m_insertblocksetentryCommand.SetParameterValue(3, exsize);
var c = m_insertblocksetentryCommand.ExecuteNonQuery();
if (c != 1)
throw new Exception(string.Format("Unexpected result count: {0}, expected {1}", c, 1));
}
ix++;
remainsize -= blocksize;
}
tr.Commit();
}
return true;
}
/// <summary>
/// Adds a metadata set to the database, and returns a value indicating if the record was new
/// </summary>
/// <param name="hash">The metadata hash</param>
/// <param name="metadataid">The id of the metadata set</param>
/// <returns>True if the set was added to the database, false otherwise</returns>
public bool AddMetadataset(string filehash, long size, int blocksize, IEnumerable<string> blockhashes, IEnumerable<string> blocklisthashes, out long metadataid, System.Data.IDbTransaction transaction = null)
{
if (size > 0)
{
m_findmetadatasetCommand.Transaction = transaction;
metadataid = m_findmetadatasetCommand.ExecuteScalarInt64(null, -1, filehash, size);
if (metadataid != -1)
return false;
long blocksetid;
AddBlockset(filehash, size, blocksize, blockhashes, blocklisthashes, out blocksetid, transaction);
using (var tr = new TemporaryTransactionWrapper(m_connection, transaction))
{
m_insertmetadatasetCommand.Transaction = tr.Parent;
m_insertmetadatasetCommand.SetParameterValue(0, blocksetid);
metadataid = m_insertmetadatasetCommand.ExecuteScalarInt64();
tr.Commit();
}
return true;
}
metadataid = -2;
return false;
}
/// <summary>
/// Adds a file record to the database
/// </summary>
/// <param name="filename">The path to the file</param>
/// <param name="lastmodified">The time the file was modified</param>
/// <param name="blocksetID">The ID of the hashkey for the file</param>
/// <param name="metadataID">The ID for the metadata</param>
/// <param name="transaction">The transaction to use for insertion, or null for no transaction</param>
/// <param name="operationId">The operationId to use, or -1 to use the current operation</param>
public void AddFile(string filename, DateTime lastmodified, long blocksetID, long metadataID, System.Data.IDbTransaction transaction)
{
var fileidobj = -1L;
PathEntryKeeper entry = null;
var entryFound = false;
if (m_pathLookup != null)
{
if (entryFound = (m_pathLookup.TryFind(filename, out entry) && entry != null))
{
var fid = entry.GetFilesetID(blocksetID, metadataID);
if (fid >= 0)
fileidobj = fid;
}
}
else
{
m_findfilesetCommand.Transaction = transaction;
m_findfilesetCommand.SetParameterValue(0, blocksetID);
m_findfilesetCommand.SetParameterValue(1, metadataID);
m_findfilesetCommand.SetParameterValue(2, filename);
fileidobj = m_findfilesetCommand.ExecuteScalarInt64();
}
if (fileidobj == -1)
{
using(var tr = new TemporaryTransactionWrapper(m_connection, transaction))
{
m_insertfileCommand.Transaction = tr.Parent;
m_insertfileCommand.SetParameterValue(0, filename);
m_insertfileCommand.SetParameterValue(1, blocksetID);
m_insertfileCommand.SetParameterValue(2, metadataID);
fileidobj = m_insertfileCommand.ExecuteScalarInt64();
tr.Commit();
// We do not need to update this, because we will not ask for the same file twice
if (m_pathLookup != null)
{
if (!entryFound)
{
entry = new PathEntryKeeper(-1, new DateTime(0, DateTimeKind.Utc), -1, null, -1);
entry.AddFilesetID(blocksetID, metadataID, fileidobj);
m_pathLookup.Insert(filename, entry);
}
else
entry.AddFilesetID(blocksetID, metadataID, fileidobj);
}
}
}
m_insertfileOperationCommand.Transaction = transaction;
m_insertfileOperationCommand.SetParameterValue(0, m_filesetId);
m_insertfileOperationCommand.SetParameterValue(1, fileidobj);
m_insertfileOperationCommand.SetParameterValue(2, lastmodified.ToUniversalTime().Ticks);
m_insertfileOperationCommand.ExecuteNonQuery();
}
public void AddUnmodifiedFile(long fileid, DateTime lastmodified, System.Data.IDbTransaction transaction = null)
{
m_insertfileOperationCommand.Transaction = transaction;
m_insertfileOperationCommand.SetParameterValue(0, m_filesetId);
m_insertfileOperationCommand.SetParameterValue(1, fileid);
m_insertfileOperationCommand.SetParameterValue(2, lastmodified.ToUniversalTime().Ticks);
m_insertfileOperationCommand.ExecuteNonQuery();
}
public void AddDirectoryEntry(string path, long metadataID, DateTime lastmodified, System.Data.IDbTransaction transaction = null)
{
AddFile(path, lastmodified, FOLDER_BLOCKSET_ID, metadataID, transaction);
}
public void AddSymlinkEntry(string path, long metadataID, DateTime lastmodified, System.Data.IDbTransaction transaction = null)
{
AddFile(path, lastmodified, SYMLINK_BLOCKSET_ID, metadataID, transaction);
}
public long GetFileEntry(string path, out DateTime oldModified, out long lastFileSize, out string oldMetahash, out long oldMetasize)
{
if (m_pathLookup != null)
{
PathEntryKeeper tmp;
if (m_pathLookup.TryFind(path, out tmp) && tmp != null && tmp.FileID >= 0)
{
oldModified = tmp.Lastmodified;
lastFileSize = tmp.Filesize;
oldMetahash = tmp.Metahash;
oldMetasize = tmp.Metasize;
return tmp.FileID;
}
else
{
oldModified = new DateTime(0, DateTimeKind.Utc);
lastFileSize = -1;
oldMetahash = null;
oldMetasize = -1;
return -1;
}
}
else
{
m_selectfileSimpleCommand.SetParameterValue(0, path);
using(var rd = m_selectfileSimpleCommand.ExecuteReader())
if (rd.Read())
{
oldModified = new DateTime(rd.GetInt64(1), DateTimeKind.Utc);
lastFileSize = rd.GetInt64(2);
oldMetahash = rd.GetString(3);
oldMetasize = rd.GetInt64(4);
return rd.GetInt64(0);
}
else
{
oldModified = new DateTime(0, DateTimeKind.Utc);
lastFileSize = -1;
oldMetahash = null;
oldMetasize = -1;
return -1;
}
}
}
public string GetFileHash(long fileid)
{
m_selectfileHashCommand.SetParameterValue(0, fileid);
var r = m_selectfileHashCommand.ExecuteScalar();
if (r == null || r == DBNull.Value)
return null;
return r.ToString();
}
public void WriteFileset(Volumes.FilesetVolumeWriter filesetvolume, System.Data.IDbTransaction transaction)
{
WriteFileset(filesetvolume, transaction, m_filesetId);
}
public override void Dispose ()
{
m_pathLookup = null;
base.Dispose();
}
private long GetPreviousFilesetID(System.Data.IDbCommand cmd)
{
return GetPreviousFilesetID(cmd, OperationTimestamp, m_filesetId);
}
private long GetPreviousFilesetID(System.Data.IDbCommand cmd, DateTime timestamp, long filesetid)
{
var lastFilesetId = cmd.ExecuteScalarInt64(@"SELECT ""ID"" FROM ""Fileset"" WHERE ""Timestamp"" < ? AND ""ID"" != ? ORDER BY ""Timestamp"" DESC ", -1, NormalizeDateTimeToEpochSeconds(timestamp), filesetid);
return lastFilesetId;
}
internal void UpdateChangeStatistics(BackupResults results)
{
using(var cmd = m_connection.CreateCommand())
{
var lastFilesetId = GetPreviousFilesetID(cmd);
results.AddedFolders = cmd.ExecuteScalarInt64(@"SELECT COUNT(*) FROM ""File"" INNER JOIN ""FilesetEntry"" ON ""File"".""ID"" = ""FilesetEntry"".""FileID"" WHERE ""FilesetEntry"".""FilesetID"" = ? AND ""File"".""BlocksetID"" = ? AND NOT ""File"".""Path"" IN (SELECT ""Path"" FROM ""File"" INNER JOIN ""FilesetEntry"" ON ""File"".""ID"" = ""FilesetEntry"".""FileID"" WHERE ""FilesetEntry"".""FilesetID"" = ?)", 0, m_filesetId, FOLDER_BLOCKSET_ID, lastFilesetId);
results.AddedSymlinks = cmd.ExecuteScalarInt64(@"SELECT COUNT(*) FROM ""File"" INNER JOIN ""FilesetEntry"" ON ""File"".""ID"" = ""FilesetEntry"".""FileID"" WHERE ""FilesetEntry"".""FilesetID"" = ? AND ""File"".""BlocksetID"" = ? AND NOT ""File"".""Path"" IN (SELECT ""Path"" FROM ""File"" INNER JOIN ""FilesetEntry"" ON ""File"".""ID"" = ""FilesetEntry"".""FileID"" WHERE ""FilesetEntry"".""FilesetID"" = ?)", 0, m_filesetId, SYMLINK_BLOCKSET_ID, lastFilesetId);
results.DeletedFolders = cmd.ExecuteScalarInt64(@"SELECT COUNT(*) FROM ""File"" INNER JOIN ""FilesetEntry"" ON ""File"".""ID"" = ""FilesetEntry"".""FileID"" WHERE ""FilesetEntry"".""FilesetID"" = ? AND ""File"".""BlocksetID"" = ? AND NOT ""File"".""Path"" IN (SELECT ""Path"" FROM ""File"" INNER JOIN ""FilesetEntry"" ON ""File"".""ID"" = ""FilesetEntry"".""FileID"" WHERE ""FilesetEntry"".""FilesetID"" = ?)", 0, lastFilesetId, FOLDER_BLOCKSET_ID, m_filesetId);
results.DeletedSymlinks = cmd.ExecuteScalarInt64(@"SELECT COUNT(*) FROM ""File"" INNER JOIN ""FilesetEntry"" ON ""File"".""ID"" = ""FilesetEntry"".""FileID"" WHERE ""FilesetEntry"".""FilesetID"" = ? AND ""File"".""BlocksetID"" = ? AND NOT ""File"".""Path"" IN (SELECT ""Path"" FROM ""File"" INNER JOIN ""FilesetEntry"" ON ""File"".""ID"" = ""FilesetEntry"".""FileID"" WHERE ""FilesetEntry"".""FilesetID"" = ?)", 0, lastFilesetId, SYMLINK_BLOCKSET_ID, m_filesetId);
var subqueryNonFiles = @"SELECT ""File"".""Path"", ""Blockset"".""Fullhash"" FROM ""File"", ""FilesetEntry"", ""Metadataset"", ""Blockset"" WHERE ""File"".""ID"" = ""FilesetEntry"".""FileID"" AND ""Metadataset"".""ID"" = ""File"".""MetadataID"" AND ""File"".""BlocksetID"" = ? AND ""Metadataset"".""BlocksetID"" = ""Blockset"".""ID"" AND ""FilesetEntry"".""FilesetID"" = ? ";
results.ModifiedFolders = cmd.ExecuteScalarInt64(@"SELECT COUNT(*) FROM (" + subqueryNonFiles + @") A, (" + subqueryNonFiles + @") B WHERE ""A"".""Path"" = ""B"".""Path"" AND ""A"".""Fullhash"" != ""B"".""Fullhash"" ", 0, lastFilesetId, FOLDER_BLOCKSET_ID, m_filesetId, FOLDER_BLOCKSET_ID);
results.ModifiedSymlinks = cmd.ExecuteScalarInt64(@"SELECT COUNT(*) FROM (" + subqueryNonFiles + @") A, (" + subqueryNonFiles + @") B WHERE ""A"".""Path"" = ""B"".""Path"" AND ""A"".""Fullhash"" != ""B"".""Fullhash"" ", 0, lastFilesetId, SYMLINK_BLOCKSET_ID, m_filesetId, SYMLINK_BLOCKSET_ID);
var tmpName1 = "TmpFileList-" + Library.Utility.Utility.ByteArrayAsHexString(Guid.NewGuid().ToByteArray());
var tmpName2 = "TmpFileList-" + Library.Utility.Utility.ByteArrayAsHexString(Guid.NewGuid().ToByteArray());
try
{
var subqueryFiles = @"SELECT ""File"".""Path"", ""A"".""Fullhash"" AS ""Filehash"", ""B"".""Fullhash"" AS ""Metahash"" FROM ""File"", ""FilesetEntry"", ""Blockset"" A, ""Blockset"" B, ""Metadataset"" WHERE ""File"".""ID"" = ""FilesetEntry"".""FileID"" AND ""A"".""ID"" = ""File"".""BlocksetID"" AND ""FilesetEntry"".""FilesetID"" = ? AND ""File"".""MetadataID"" = ""Metadataset"".""ID"" AND ""Metadataset"".""BlocksetID"" = ""B"".""ID"" ";
cmd.ExecuteNonQuery(string.Format(@"CREATE TEMPORARY TABLE ""{0}"" AS " + subqueryFiles, tmpName1), lastFilesetId);
cmd.ExecuteNonQuery(string.Format(@"CREATE TEMPORARY TABLE ""{0}"" AS " + subqueryFiles, tmpName2), m_filesetId);
results.AddedFiles = cmd.ExecuteScalarInt64(string.Format(@"SELECT COUNT(*) FROM ""File"" INNER JOIN ""FilesetEntry"" ON ""File"".""ID"" = ""FilesetEntry"".""FileID"" WHERE ""FilesetEntry"".""FilesetID"" = ? AND ""File"".""BlocksetID"" != ? AND ""File"".""BlocksetID"" != ? AND NOT ""File"".""Path"" IN (SELECT ""Path"" FROM ""{0}"")", tmpName1), 0, m_filesetId, FOLDER_BLOCKSET_ID, SYMLINK_BLOCKSET_ID);
results.DeletedFiles = cmd.ExecuteScalarInt64(string.Format(@"SELECT COUNT(*) FROM ""{0}"" WHERE ""{0}"".""Path"" NOT IN (SELECT ""Path"" FROM ""File"" INNER JOIN ""FilesetEntry"" ON ""File"".""ID"" = ""FilesetEntry"".""FileID"" WHERE ""FilesetEntry"".""FilesetID"" = ?)", tmpName1), 0, m_filesetId);
results.ModifiedFiles = cmd.ExecuteScalarInt64(string.Format(@"SELECT COUNT(*) FROM ""{0}"" A, ""{1}"" B WHERE ""A"".""Path"" = ""B"".""Path"" AND (""A"".""Filehash"" != ""B"".""Filehash"" OR ""A"".""Metahash"" != ""B"".""Metahash"")", tmpName1, tmpName2), 0);
}
finally
{
try { cmd.ExecuteNonQuery(string.Format(@"DROP TABLE IF EXISTS ""{0}"";", tmpName1)); }
catch (Exception ex) { m_result.AddWarning("Dispose temp table error", ex); }
try { cmd.ExecuteNonQuery(string.Format(@"DROP TABLE IF EXISTS ""{0}"";", tmpName2)); }
catch (Exception ex) { m_result.AddWarning("Dispose temp table error", ex); }
}
}
}
public void AppendFilesFromPreviousSet(System.Data.IDbTransaction transaction, IEnumerable<string> deleted)
{
AppendFilesFromPreviousSet(transaction, deleted, m_filesetId, -1, OperationTimestamp);
}
public void AppendFilesFromPreviousSet(System.Data.IDbTransaction transaction, IEnumerable<string> deleted, long filesetid, long prevId, DateTime timestamp)
{
using(var cmd = m_connection.CreateCommand())
using (var tr = new TemporaryTransactionWrapper(m_connection, transaction))
{
long lastFilesetId = prevId < 0 ? GetPreviousFilesetID(cmd, timestamp, filesetid) : prevId;
cmd.Transaction = tr.Parent;
cmd.ExecuteNonQuery( @"INSERT INTO ""FilesetEntry"" (""FilesetID"", ""FileID"", ""Lastmodified"") SELECT ? AS ""FilesetID"", ""FileID"", ""Lastmodified"" FROM (SELECT DISTINCT ""FilesetID"", ""FileID"", ""Lastmodified"" FROM ""FilesetEntry"" WHERE ""FilesetID"" = ? AND ""FileID"" NOT IN (SELECT ""FileID"" FROM ""FilesetEntry"" WHERE ""FilesetID"" = ?)) ", filesetid, lastFilesetId, filesetid);
if (deleted != null)
{
cmd.CommandText = @"DELETE FROM ""FilesetEntry"" WHERE ""FilesetID"" = ? AND ""FileID"" IN (SELECT ""ID"" FROM ""File"" WHERE ""Path"" = ?) ";
cmd.AddParameter(filesetid);
cmd.AddParameter();
foreach (string s in deleted)
{
cmd.SetParameterValue(1, s);
cmd.ExecuteNonQuery();
}
}
tr.Commit();
}
}
/// <summary>
/// Creates a timestamped backup operation to correctly associate the fileset with the time it was created.
/// </summary>
/// <param name="volumeid">The ID of the fileset volume to update</param>
/// <param name="timestamp">The timestamp of the operation to create</param>
/// <param name="transaction">An optional external transaction</param>
public override long CreateFileset(long volumeid, DateTime timestamp, System.Data.IDbTransaction transaction = null)
{
return m_filesetId = base.CreateFileset(volumeid, timestamp, transaction);
}
public IEnumerable<KeyValuePair<long, DateTime>> GetIncompleteFilesets(System.Data.IDbTransaction transaction)
{
using(var cmd = m_connection.CreateCommand())
{
cmd.Transaction = transaction;
using(var rd = cmd.ExecuteReader(@"SELECT DISTINCT ""Fileset"".""ID"", ""Fileset"".""Timestamp"" FROM ""Fileset"", ""RemoteVolume"" WHERE ""RemoteVolume"".""ID"" = ""Fileset"".""VolumeID"" AND ""Fileset"".""ID"" IN (SELECT ""FilesetID"" FROM ""FilesetEntry"") AND (""RemoteVolume"".""State"" = ""Uploading"" OR ""RemoteVolume"".""State"" = ""Temporary"")"))
while(rd.Read())
{
yield return new KeyValuePair<long, DateTime>(
rd.GetInt64(0),
ParseFromEpochSeconds(rd.GetInt64(1)).ToLocalTime()
);
}
}
}
public IRemoteVolume GetRemoteVolumeFromName(string name)
{
using(var cmd = m_connection.CreateCommand())
using(var rd = cmd.ExecuteReader(@"SELECT ""Name"", ""Hash"", ""Size"" FROM ""RemoteVolume"" WHERE ""Name"" = ?", name))
if (rd.Read())
return new RemoteVolume(rd.GetValue(0).ToString(), rd.GetValue(1).ToString(), rd.ConvertValueToInt64(2));
else
return null;
}
public IEnumerable<string> GetMissingIndexFiles()
{
using(var cmd = m_connection.CreateCommand())
using(var rd = cmd.ExecuteReader(@"SELECT ""Name"" FROM ""RemoteVolume"" WHERE ""Type"" = ? AND NOT ""ID"" IN (SELECT ""BlockVolumeID"" FROM ""IndexBlockLink"") AND ""State"" IN (?,?)", RemoteVolumeType.Blocks.ToString(), RemoteVolumeState.Uploaded.ToString(), RemoteVolumeState.Verified.ToString()))
while (rd.Read())
yield return rd.GetValue(0).ToString();
}
public void LinkFilesetToVolume(long filesetid, long volumeid, System.Data.IDbTransaction transaction)
{
using(var cmd = m_connection.CreateCommand())
{
cmd.Transaction = transaction;
var c = cmd.ExecuteNonQuery(@"UPDATE ""Fileset"" SET ""VolumeID"" = ? WHERE ""ID"" = ?", volumeid, filesetid);
if (c != 1)
throw new Exception(string.Format("Failed to link filesetid {0} to volumeid {1}", filesetid, volumeid));
}
}
}
}
Reference in New Issue View Git Blame Copy Permalink