+#region
+/* -----------------------------------------------------------------------
+ * <copyright file="StatusAgent.cs" company="GRNet">
+ *
+ * Copyright 2011-2012 GRNET S.A. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and
+ * documentation are those of the authors and should not be
+ * interpreted as representing official policies, either expressed
+ * or implied, of GRNET S.A.
+ * </copyright>
+ * -----------------------------------------------------------------------
+ */
+#endregion
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.Diagnostics.Contracts;
using System.IO;
using System.Linq;
+using System.Reflection;
+using System.Security.Cryptography;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Castle.ActiveRecord;
+using Castle.ActiveRecord.Framework;
using Castle.ActiveRecord.Framework.Config;
+using NHibernate.ByteCode.Castle;
+using NHibernate.Cfg;
+using NHibernate.Cfg.Loquacious;
+using NHibernate.Dialect;
using Pithos.Interfaces;
using Pithos.Network;
using log4net;
+using Environment = System.Environment;
namespace Pithos.Core.Agents
{
[Export(typeof(IStatusChecker)),Export(typeof(IStatusKeeper))]
public class StatusAgent:IStatusChecker,IStatusKeeper
{
+ private static readonly ILog Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
[System.ComponentModel.Composition.Import]
public IPithosSettings Settings { get; set; }
private Agent<Action> _persistenceAgent;
- private static readonly ILog Log = LogManager.GetLogger("StatusAgent");
public StatusAgent()
{
var appDataPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
- _pithosDataPath = Path.Combine(appDataPath , "Pithos");
+ _pithosDataPath = Path.Combine(appDataPath , "GRNET\\PITHOS");
if (!Directory.Exists(_pithosDataPath))
Directory.CreateDirectory(_pithosDataPath);
+
+ var dbPath = Path.Combine(_pithosDataPath, "pithos.db");
+
+ MigrateOldDb(dbPath, appDataPath);
+
+
var source = GetConfiguration(_pithosDataPath);
ActiveRecordStarter.Initialize(source,typeof(FileState),typeof(FileTag));
+
ActiveRecordStarter.UpdateSchema();
- if (!File.Exists(Path.Combine(_pithosDataPath ,"pithos.db")))
+
+ if (!File.Exists(dbPath))
ActiveRecordStarter.CreateSchema();
CreateTrigger();
}
+
+ private static void MigrateOldDb(string dbPath, string appDataPath)
+ {
+ if(String.IsNullOrWhiteSpace(dbPath))
+ throw new ArgumentNullException("dbPath");
+ if(String.IsNullOrWhiteSpace(appDataPath))
+ throw new ArgumentNullException("appDataPath");
+ Contract.EndContractBlock();
+
+ var oldDbPath = Path.Combine(appDataPath, "Pithos", "pithos.db");
+ var oldDbInfo = new FileInfo(oldDbPath);
+ if (oldDbInfo.Exists && !File.Exists(dbPath))
+ {
+ Log.InfoFormat("Moving database from {0} to {1}",oldDbInfo.FullName,dbPath);
+ var oldDirectory = oldDbInfo.Directory;
+ oldDbInfo.MoveTo(dbPath);
+
+ if (Log.IsDebugEnabled)
+ Log.DebugFormat("Deleting {0}",oldDirectory.FullName);
+
+ oldDirectory.Delete(true);
+ }
+ }
+
private void CreateTrigger()
{
using (var connection = GetConnection())
{
Log.ErrorFormat("[ERROR] STATE \n{0}", ex);
}
+ queue.NotifyComplete(action);
// ReSharper disable AccessToModifiedClosure
queue.DoAsync(loop);
// ReSharper restore AccessToModifiedClosure
{
_persistenceAgent.Stop();
}
-
+
public void ProcessExistingFiles(IEnumerable<FileInfo> existingFiles)
{
where missingStates.Contains(state.Id)
select new { File = default(FileInfo), State = state };
- var pairs = currentFiles.Union(deletedFiles);
+ var pairs = currentFiles.Union(deletedFiles).ToList();
- foreach(var pair in pairs)
+ using (var shortHasher = HashAlgorithm.Create("sha1"))
{
- var fileState = pair.State;
- var file = pair.File;
- if (fileState == null)
- {
- //This is a new file
- var fullPath = pair.File.FullName;
- var createState = FileState.CreateForAsync(fullPath, BlockSize, BlockHash);
- createState.ContinueWith(state => _persistenceAgent.Post(state.Result.Create));
- }
- else if (file == null)
+ foreach (var pair in pairs)
{
- //This file was deleted while we were down. We should mark it as deleted
- //We have to go through UpdateStatus here because the state object we are using
- //was created by a different ORM session.
- _persistenceAgent.Post(()=> UpdateStatusDirect(fileState.Id, FileStatus.Deleted));
- }
- else
- {
- //This file has a matching state. Need to check for possible changes
- var hashString = file.CalculateHash(BlockSize,BlockHash);
- //If the hashes don't match the file was changed
- if (fileState.Checksum != hashString)
+ var fileState = pair.State;
+ var file = pair.File;
+ if (fileState == null)
{
- _persistenceAgent.Post(() => UpdateStatusDirect(fileState.Id, FileStatus.Modified));
- }
+ //This is a new file
+ var createState = FileState.CreateFor(file);
+ _persistenceAgent.Post(createState.Create);
+ }
+ else if (file == null)
+ {
+ //This file was deleted while we were down. We should mark it as deleted
+ //We have to go through UpdateStatus here because the state object we are using
+ //was created by a different ORM session.
+ _persistenceAgent.Post(() => UpdateStatusDirect(fileState.Id, FileStatus.Deleted));
+ }
+ else
+ {
+ //This file has a matching state. Need to check for possible changes
+ //To check for changes, we use the cheap (in CPU terms) SHA1 algorithm
+ //on the entire file.
+
+ var hashString = file.ComputeShortHash(shortHasher);
+ //TODO: Need a way to attach the hashes to the filestate so we don't
+ //recalculate them each time a call to calculate has is made
+ //We can either store them to the filestate or add them to a
+ //dictionary
+
+ //If the hashes don't match the file was changed
+ if (fileState.ShortHash != hashString)
+ {
+ _persistenceAgent.Post(() => UpdateStatusDirect(fileState.Id, FileStatus.Modified));
+ }
+ }
}
- };
+ }
+
}
+
+
private int UpdateStatusDirect(Guid id, FileStatus status)
{
command.Parameters.AddWithValue("path", path);
var affected = command.ExecuteNonQuery();
+ if (affected == 0)
+ {
+ var createdState = FileState.CreateFor(FileInfoExtensions.FromPath(path));
+ createdState.FileStatus = status;
+ createdState.Create();
+ }
return affected;
}
}
}
}
- private int UpdateStatusDirect(string absolutePath, FileStatus fileStatus, FileOverlayStatus overlayStatus)
+ private int UpdateStatusDirect(string absolutePath, FileStatus fileStatus, FileOverlayStatus overlayStatus, string conflictReason)
{
using (log4net.ThreadContext.Stacks["StatusAgent"].Push("UpdateStatusDirect"))
{
using (
var command =
new SQLiteCommand(
- "update FileState set OverlayStatus= :overlayStatus, FileStatus= :fileStatus where FilePath = :path COLLATE NOCASE ",
+ "update FileState set OverlayStatus= :overlayStatus, FileStatus= :fileStatus,ConflictReason= :conflictReason where FilePath = :path COLLATE NOCASE ",
connection))
{
command.Parameters.AddWithValue("path", absolutePath);
command.Parameters.AddWithValue("fileStatus", fileStatus);
command.Parameters.AddWithValue("overlayStatus", overlayStatus);
+ command.Parameters.AddWithValue("conflictReason", conflictReason);
var affected = command.ExecuteNonQuery();
+ if (affected == 0)
+ {
+ var createdState=FileState.CreateFor(FileInfoExtensions.FromPath(absolutePath));
+ createdState.FileStatus = fileStatus;
+ createdState.OverlayStatus = overlayStatus;
+ createdState.ConflictReason = conflictReason;
+ createdState.Create();
+ }
return affected;
}
}
}
- private PithosStatus _pithosStatus=PithosStatus.InSynch;
-
- public void SetPithosStatus(PithosStatus status)
- {
- _pithosStatus = status;
- }
-
- public PithosStatus GetPithosStatus()
- {
- return _pithosStatus;
- }
private readonly string _pithosDataPath;
{
using (var connection = GetConnection())
- using (var command = new SQLiteCommand("select Id, FilePath, OverlayStatus,FileStatus ,Checksum ,Version ,VersionTimeStamp,IsShared ,SharedBy ,ShareWrite from FileState where FilePath=:path COLLATE NOCASE", connection))
+ using (var command = new SQLiteCommand("select Id, FilePath, OverlayStatus,FileStatus ,Checksum ,ShortHash,Version ,VersionTimeStamp,IsShared ,SharedBy ,ShareWrite from FileState where FilePath=:path COLLATE NOCASE", connection))
{
command.Parameters.AddWithValue("path", path);
OverlayStatus =reader.IsDBNull(2)?FileOverlayStatus.Unversioned: (FileOverlayStatus) reader.GetInt64(2),
FileStatus = reader.IsDBNull(3)?FileStatus.Missing:(FileStatus) reader.GetInt64(3),
Checksum = reader.IsDBNull(4)?"":reader.GetString(4),
- Version = reader.IsDBNull(5)?default(long):reader.GetInt64(5),
- VersionTimeStamp = reader.IsDBNull(6)?default(DateTime):reader.GetDateTime(6),
- IsShared = !reader.IsDBNull(7) && reader.GetBoolean(7),
- SharedBy = reader.IsDBNull(8)?"":reader.GetString(8),
- ShareWrite = !reader.IsDBNull(9) && reader.GetBoolean(9)
+ ShortHash= reader.IsDBNull(5)?"":reader.GetString(5),
+ Version = reader.IsDBNull(6)?default(long):reader.GetInt64(6),
+ VersionTimeStamp = reader.IsDBNull(7)?default(DateTime):reader.GetDateTime(7),
+ IsShared = !reader.IsDBNull(8) && reader.GetBoolean(8),
+ SharedBy = reader.IsDBNull(9)?"":reader.GetString(9),
+ ShareWrite = !reader.IsDBNull(10) && reader.GetBoolean(10)
};
/*
var state = new FileState
return connection;
}
- public void SetFileOverlayStatus(string path, FileOverlayStatus overlayStatus)
+ /* public void SetFileOverlayStatus(string path, FileOverlayStatus overlayStatus)
{
if (String.IsNullOrWhiteSpace(path))
throw new ArgumentNullException("path");
Contract.EndContractBlock();
_persistenceAgent.Post(() => FileState.StoreOverlayStatus(path,overlayStatus));
+ }*/
+
+ public Task SetFileOverlayStatus(string path, FileOverlayStatus overlayStatus, string shortHash = null)
+ {
+ if (String.IsNullOrWhiteSpace(path))
+ throw new ArgumentNullException("path");
+ if (!Path.IsPathRooted(path))
+ throw new ArgumentException("The path must be rooted","path");
+ Contract.EndContractBlock();
+
+ return _persistenceAgent.PostAndAwait(() => FileState.StoreOverlayStatus(path,overlayStatus,shortHash));
}
/* public void RenameFileOverlayStatus(string oldPath, string newPath)
_persistenceAgent.Post(() =>FileState.RenameState(oldPath, newPath));
}*/
- public void SetFileState(string path, FileStatus fileStatus, FileOverlayStatus overlayStatus)
+ public void SetFileState(string path, FileStatus fileStatus, FileOverlayStatus overlayStatus, string conflictReason)
{
if (String.IsNullOrWhiteSpace(path))
throw new ArgumentNullException("path");
Debug.Assert(!path.Contains(FolderConstants.CacheFolder));
Debug.Assert(!path.EndsWith(".ignore"));
- _persistenceAgent.Post(() => UpdateStatusDirect(path, fileStatus, overlayStatus));
+ _persistenceAgent.Post(() => UpdateStatusDirect(path, fileStatus, overlayStatus, conflictReason));
}
/*
else
{
command.CommandText =
- "INSERT INTO FileState (Id,FilePath,Checksum,Version,VersionTimeStamp,FileStatus,OverlayStatus) VALUES (:id,:path,:checksum,:version,:versionTimeStamp,:fileStatus,:overlayStatus)";
+ "INSERT INTO FileState (Id,FilePath,Checksum,Version,VersionTimeStamp,ShortHash,FileStatus,OverlayStatus,ObjectID) VALUES (:id,:path,:checksum,:version,:versionTimeStamp,:shortHash,:fileStatus,:overlayStatus,:objectID)";
command.Parameters.AddWithValue("id", Guid.NewGuid());
}
command.Parameters.AddWithValue("path", path);
- command.Parameters.AddWithValue("checksum", objectInfo.Hash);
+ command.Parameters.AddWithValue("checksum", objectInfo.X_Object_Hash);
+ command.Parameters.AddWithValue("shortHash", objectInfo.ETag);
command.Parameters.AddWithValue("version", objectInfo.Version);
- command.Parameters.AddWithValue("versionTimeStamp",
- objectInfo.VersionTimestamp);
+ command.Parameters.AddWithValue("versionTimeStamp", objectInfo.VersionTimestamp);
command.Parameters.AddWithValue("fileStatus", FileStatus.Unchanged);
- command.Parameters.AddWithValue("overlayStatus",
- FileOverlayStatus.Normal);
+ command.Parameters.AddWithValue("overlayStatus", FileOverlayStatus.Normal);
+ command.Parameters.AddWithValue("objectID",objectInfo.UUID);
var affected = command.ExecuteNonQuery();
return;
if (!Path.IsPathRooted(path))
throw new ArgumentException("The path must be rooted", "path");
Contract.EndContractBlock();
-
+ //TODO: May throw if the agent is cleared for some reason. Should never happen
_persistenceAgent.Post(() => DeleteFolderDirect(path));
}
return children;
}
+ public void EnsureFileState(string path)
+ {
+ var existingState = GetStateByFilePath(path);
+ if (existingState != null)
+ return;
+ var fileInfo = FileInfoExtensions.FromPath(path);
+ using (new SessionScope())
+ {
+ var newState = FileState.CreateFor(fileInfo);
+ newState.FileStatus=FileStatus.Missing;
+ _persistenceAgent.PostAndAwait(newState.CreateAndFlush).Wait();
+ }
+
+ }
+
private int DeleteDirect(string filePath)
{
using (log4net.ThreadContext.Stacks["StatusAgent"].Push("DeleteDirect"))
using (var connection = GetConnection())
{
- var command = new SQLiteCommand("delete from FileState where FilePath = :path or FilePath like :path + '/%' COLLATE NOCASE",
+ var command = new SQLiteCommand(@"delete from FileState where FilePath = :path or FilePath like :path || '\%' COLLATE NOCASE",
connection);
command.Parameters.AddWithValue("path", filePath);
}
}
- public void UpdateFileChecksum(string path, string checksum)
+ public void UpdateFileChecksum(string path, string shortHash, string checksum)
{
if (String.IsNullOrWhiteSpace(path))
throw new ArgumentNullException("path");
throw new ArgumentException("The path must be rooted", "path");
Contract.EndContractBlock();
- _persistenceAgent.Post(() => FileState.UpdateChecksum(path, checksum));
+ _persistenceAgent.Post(() => FileState.UpdateChecksum(path, shortHash,checksum));
}
+
+ public void CleanupOrphanStates()
+ {
+ //Orphan states are those that do not correspond to an account, ie. their paths
+ //do not start with the root path of any registered account
+
+ var roots=(from account in Settings.Accounts
+ select account.RootPath).ToList();
+
+ var allStates = from state in FileState.Queryable
+ select state.FilePath;
+
+ foreach (var statePath in allStates)
+ {
+ if (!roots.Any(root=>statePath.StartsWith(root,StringComparison.InvariantCultureIgnoreCase)))
+ this.DeleteDirect(statePath);
+ }
+ }
+
+ public void CleanupStaleStates(AccountInfo accountInfo, List<ObjectInfo> objectInfos)
+ {
+ if (accountInfo == null)
+ throw new ArgumentNullException("accountInfo");
+ if (objectInfos == null)
+ throw new ArgumentNullException("objectInfos");
+ Contract.EndContractBlock();
+
+
+
+ //Stale states are those that have no corresponding local or server file
+
+
+ var agent=FileAgent.GetFileAgent(accountInfo);
+
+ var localFiles=agent.EnumerateFiles();
+ var localSet = new HashSet<string>(localFiles);
+
+ //RelativeUrlToFilePath will fail for
+ //infos of accounts, containers which have no Name
+
+ var serverFiles = from info in objectInfos
+ where info.Name != null
+ select Path.Combine(accountInfo.AccountPath,info.RelativeUrlToFilePath(accountInfo.UserName));
+ var serverSet = new HashSet<string>(serverFiles);
+
+ var allStates = from state in FileState.Queryable
+ where state.FilePath.StartsWith(agent.RootPath)
+ select state.FilePath;
+ var stateSet = new HashSet<string>(allStates);
+ stateSet.ExceptWith(serverSet);
+ stateSet.ExceptWith(localSet);
+
+ foreach (var remainder in stateSet)
+ {
+ DeleteDirect(remainder);
+ }
+
+
+ }
}
projects / pithos-ms-client / blobdiff