X-Git-Url: https://code.grnet.gr/git/pithos-ms-client/blobdiff_plain/bfc13ed8347269a909b77988f9e039c1d9017837..d78d765c9a999500ba4faa22fe21384481e2ec60:/trunk/Pithos.Core/FileState.cs?ds=sidebyside
diff --git a/trunk/Pithos.Core/FileState.cs b/trunk/Pithos.Core/FileState.cs
index b6911c3..2c3869a 100644
--- a/trunk/Pithos.Core/FileState.cs
+++ b/trunk/Pithos.Core/FileState.cs
@@ -1,43 +1,79 @@
-// -----------------------------------------------------------------------
-//
-// TODO: Update copyright text.
-//
-// -----------------------------------------------------------------------
-
+#region
+/* -----------------------------------------------------------------------
+ *
+ *
+ * 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.
+ *
+ * -----------------------------------------------------------------------
+ */
+#endregion
using System.Diagnostics.Contracts;
using System.IO;
+using System.Reflection;
using System.Threading.Tasks;
using Castle.ActiveRecord;
using Castle.ActiveRecord.Framework;
-using NHibernate.Engine;
+using Castle.ActiveRecord.Queries;
+using NHibernate.Criterion;
+using Pithos.Core.Agents;
using Pithos.Interfaces;
using Pithos.Network;
+using log4net;
namespace Pithos.Core
{
using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
+ using System.Collections.Generic;
///
/// TODO: Update summary.
///
[ActiveRecord]
- public class FileState:ActiveRecordLinqBase
+ public class FileState : ActiveRecordLinqBase
{
- private string _filePath;
- private IList _tags=new List();
+ private static readonly ILog Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+
+ private IList _tags = new List();
[PrimaryKey(PrimaryKeyType.Guid)]
public Guid Id { get; set; }
- [Property(Unique=true,UniqueKey="IX_FileState_FilePath")]
- public string FilePath
- {
- get { return _filePath; }
- set { _filePath = value.ToLower(); }
- }
+
+ [Property(Unique = true, UniqueKey = "IX_FileState_FilePath")]
+ public string FilePath { get; set; }
[Property]
public FileOverlayStatus OverlayStatus { get; set; }
@@ -45,80 +81,444 @@ namespace Pithos.Core
[Property]
public FileStatus FileStatus { get; set; }
- [Property]
- public string Checksum { get; set; }
+ private string _checksum;
+ ///
+ /// The tophash value of the file, calculated by using a Merkle hash with the SHA256 algorithm
+ ///
+ ///
+ /// The SHA256 algorithm is substantially more expenive than other algorithms.
+ /// Recalculating the Checksum should be avoided whenever possible.
+ ///
[Property]
- public string TopHash { get; set; }
+ public string Checksum
+ {
+ get
+ {
+ return _checksum;
+ }
+ set
+ {
+ _checksum = value;
+ }
+ }
+
+ private string _shortHash;
+
+ ///
+ /// An easy to calcualte hash over the entire file, used to detect file changes
+ ///
+ /// The algorithm used to calculate this hash should be cheap
+ [Property(NotNull=true,Default="")]
+ public string ShortHash
+ {
+ get
+ {
+ return _shortHash;
+ }
+ set
+ {
+ _shortHash = value;
+ }
+ }
+
[Property]
public long? Version { get; set; }
[Property]
public DateTime? VersionTimeStamp { get; set; }
-
- [HasMany(Cascade = ManyRelationCascadeEnum.AllDeleteOrphan, Lazy = true,Inverse=true)]
+
+ [Property]
+ public bool IsShared { get; set; }
+
+ [Property]
+ public string SharedBy { get; set; }
+
+ [Property]
+ public bool ShareWrite { get; set; }
+
+ [Property]
+ public bool IsFolder{ get; set; }
+
+ [HasMany(Cascade = ManyRelationCascadeEnum.AllDeleteOrphan, Lazy = true, Inverse = true)]
public IList Tags
{
- get { return _tags; }
- set { _tags=value;}
+ get { return _tags; }
+ set { _tags = value; }
+ }
+
+ [Property]
+ public DateTime Modified { get; set; }
+
+
+ public FileSystemInfo GetFileSystemInfo()
+ {
+ if (String.IsNullOrWhiteSpace(FilePath))
+ throw new InvalidOperationException();
+ Contract.EndContractBlock();
+
+ return Directory.Exists(FilePath) ?
+ (FileSystemInfo)new DirectoryInfo(FilePath)
+ : new FileInfo(FilePath);
}
-// [HasMany(Cascade = ManyRelationCascadeEnum.AllDeleteOrphan, Lazy = true)]
-// public IList Hashes { get; set; }
+ public string GetRelativeUrl(AccountInfo accountInfo)
+ {
+ if (accountInfo==null)
+ throw new ArgumentNullException("accountInfo");
+ Contract.EndContractBlock();
-// [Property]
-// public byte[] HashmapHash { get; set; }
-
- public static FileState FindByFilePath(string absolutePath)
+ var fsi=GetFileSystemInfo();
+ return fsi.AsRelativeUrlTo(accountInfo.AccountPath);
+ }
+ /*public static FileState FindByFilePath(string absolutePath)
{
- return Queryable.FirstOrDefault(s => s.FilePath == absolutePath.ToLower());
+ if (string.IsNullOrWhiteSpace(absolutePath))
+ throw new ArgumentNullException("absolutePath");
+ Contract.EndContractBlock();
+ try
+ {
+
+
+
+ return Queryable.FirstOrDefault(s => s.FilePath == absolutePath);
+ }
+ catch (Exception ex)
+ {
+ Log.Error(ex.ToString());
+ throw;
+ }
+
+
+ }*/
+
+ /* public static void DeleteByFilePath(string absolutePath)
+ {
+ if (string.IsNullOrWhiteSpace(absolutePath))
+ throw new ArgumentNullException("absolutePath");
+ Contract.EndContractBlock();
+
+ ExecuteWithRetry((session, instance) =>
+ {
+ const string hqlDelete = "delete FileState where FilePath = :path";
+ var deletedEntities = session.CreateQuery(hqlDelete)
+ .SetString("path", absolutePath)
+ .ExecuteUpdate();
+ return deletedEntities;
+ }, null);
+
+ }*/
+
+ public static void StoreFileStatus(string absolutePath, FileStatus newStatus)
+ {
+ if (string.IsNullOrWhiteSpace(absolutePath))
+ throw new ArgumentNullException("absolutePath");
+ Contract.EndContractBlock();
+
+ ExecuteWithRetry((session, instance) =>
+ {
+ const string hqlUpdate = "update FileState set FileStatus= :status where FilePath = :path ";
+ var updatedEntities = session.CreateQuery(hqlUpdate)
+ .SetString("path", absolutePath)
+ .SetEnum("status", newStatus)
+ .ExecuteUpdate();
+ if (updatedEntities == 0)
+ {
+ var newState = new FileState
+ {
+ FilePath = absolutePath,
+ Id = Guid.NewGuid(),
+ FileStatus = newStatus,
+ IsFolder=Directory.Exists(absolutePath)
+ };
+ newState.CreateAndFlush();
+ }
+ return null;
+ }, null);
+
}
- public static Task CreateForAsync(string filePath,int blockSize,string algorithm)
+ /*public static void StoreOverlayStatus(string absolutePath, FileOverlayStatus newStatus)
{
- if (blockSize <= 0)
- throw new ArgumentOutOfRangeException("blockSize");
- if (String.IsNullOrWhiteSpace(algorithm))
- throw new ArgumentNullException("algorithm");
+ if (string.IsNullOrWhiteSpace(absolutePath))
+ throw new ArgumentNullException("absolutePath");
Contract.EndContractBlock();
+ ExecuteWithRetry((session, instance) =>
+ {
+ const string hqlUpdate =
+ "update FileState set OverlayStatus= :status where FilePath = :path ";
+ var updatedEntities = session.CreateQuery(hqlUpdate)
+ .SetString("path", absolutePath)
+ .SetEnum("status", newStatus)
+ .ExecuteUpdate();
+ if (updatedEntities == 0)
+ {
+ var newState = new FileState
+ {
+ FilePath = absolutePath,
+ Id = Guid.NewGuid(),
+ OverlayStatus = newStatus,
+ ShortHash = String.Empty,
+ IsFolder=Directory.Exists(absolutePath)
+ };
+ newState.CreateAndFlush();
+ }
+ return null;
+ }, null);
- var fileState = new FileState
- {
- FilePath = filePath,
- OverlayStatus = FileOverlayStatus.Unversioned,
- FileStatus = FileStatus.Created,
- Id=Guid.NewGuid()
- };
+ }
+*/
+ public static void StoreOverlayStatus(string absolutePath, FileOverlayStatus newStatus,string shortHash)
+ {
+ if (string.IsNullOrWhiteSpace(absolutePath))
+ throw new ArgumentNullException("absolutePath");
+ Contract.EndContractBlock();
+
+ ExecuteWithRetry((session, instance) =>
+ {
+ const string hqlUpdate =
+ "update FileState set OverlayStatus= :status where FilePath = :path ";
+ var updatedEntities = session.CreateQuery(hqlUpdate)
+ .SetString("path", absolutePath)
+ .SetEnum("status", newStatus)
+ .ExecuteUpdate();
+ if (updatedEntities == 0)
+ {
+ var newState = new FileState
+ {
+ FilePath = absolutePath,
+ Id = Guid.NewGuid(),
+ OverlayStatus = newStatus,
+ ShortHash = shortHash??String.Empty,
+ IsFolder=Directory.Exists(absolutePath)
+ };
+ newState.CreateAndFlush();
+ }
+ return null;
+ }, null);
+
+ }
+
+/*
+ public static void UpdateStatus(string absolutePath, FileStatus fileStatus, FileOverlayStatus overlayStatus)
+ {
+ if (string.IsNullOrWhiteSpace(absolutePath))
+ throw new ArgumentNullException("absolutePath");
+ Contract.EndContractBlock();
+
+ ExecuteWithRetry((session, instance) =>
+ {
+ const string hqlUpdate =
+ "update FileState set OverlayStatus= :overlayStatus, FileStatus= :fileStatus where FilePath = :path ";
+ var updatedEntities = session.CreateQuery(hqlUpdate)
+ .SetString("path", absolutePath)
+ .SetEnum("fileStatus", fileStatus)
+ .SetEnum("overlayStatus", overlayStatus)
+ .ExecuteUpdate();
+ return updatedEntities;
+ }, null);
+
+ }
+*/
+
+/*
+ public static void UpdateStatus(string absolutePath, FileStatus fileStatus)
+ {
+ if (string.IsNullOrWhiteSpace(absolutePath))
+ throw new ArgumentNullException("absolutePath");
+ Contract.EndContractBlock();
+
+ ExecuteWithRetry((session, instance) =>
+ {
+ const string hqlUpdate =
+ "update FileState set FileStatus= :fileStatus where FilePath = :path ";
+ var updatedEntities = session.CreateQuery(hqlUpdate)
+ .SetString("path", absolutePath)
+ .SetEnum("fileStatus", fileStatus)
+ .ExecuteUpdate();
+ return updatedEntities;
+ }, null);
+
+ }
+
+*/
+ public static void RenameState(string oldPath, string newPath)
+ {
+ if (string.IsNullOrWhiteSpace(oldPath))
+ throw new ArgumentNullException("oldPath");
+ Contract.EndContractBlock();
+
+ ExecuteWithRetry((session, instance) =>
+ {
+ const string hqlUpdate =
+ "update FileState set FilePath= :newPath where FilePath = :oldPath ";
+ var updatedEntities = session.CreateQuery(hqlUpdate)
+ .SetString("oldPath", oldPath)
+ .SetString("newPath", newPath)
+ .ExecuteUpdate();
+ return updatedEntities;
+ }, null);
+
+ }
+
+ /* public static void UpdateStatus(Guid id, FileStatus fileStatus)
+ {
+
+ ExecuteWithRetry((session, instance) =>
+ {
+ const string hqlUpdate =
+ "update FileState set FileStatus= :fileStatus where Id = :id ";
+ var updatedEntities = session.CreateQuery(hqlUpdate)
+ .SetGuid("id", id)
+ .SetEnum("fileStatus", fileStatus)
+ .ExecuteUpdate();
+ return updatedEntities;
+ }, null);
+ }*/
+
+ public static void UpdateChecksum(string absolutePath, string shortHash, string checksum)
+ {
+ if (string.IsNullOrWhiteSpace(absolutePath))
+ throw new ArgumentNullException("absolutePath");
+ Contract.EndContractBlock();
+ ExecuteWithRetry((session, instance) =>
+ {
+ const string hqlUpdate = "update FileState set Checksum= :checksum,ShortHash=:shortHash where FilePath = :path ";
+ var updatedEntities = session.CreateQuery(hqlUpdate)
+ .SetString("path", absolutePath)
+ .SetString("checksum", checksum)
+ .SetString("shortHash", shortHash)
+ .ExecuteUpdate();
+ return updatedEntities;
+ }, null);
- return fileState.UpdateHashesAsync(blockSize,algorithm);
}
- public Task UpdateHashesAsync(int blockSize,string algorithm)
+ public static void ChangeRootPath(string oldPath, string newPath)
{
- if (blockSize<=0)
- throw new ArgumentOutOfRangeException("blockSize");
- if (String.IsNullOrWhiteSpace(algorithm))
- throw new ArgumentNullException("algorithm");
+ if (String.IsNullOrWhiteSpace(oldPath))
+ throw new ArgumentNullException("oldPath");
+ if (!Path.IsPathRooted(oldPath))
+ throw new ArgumentException("oldPath must be an absolute path", "oldPath");
+ if (string.IsNullOrWhiteSpace(newPath))
+ throw new ArgumentNullException("newPath");
+ if (!Path.IsPathRooted(newPath))
+ throw new ArgumentException("newPath must be an absolute path", "newPath");
Contract.EndContractBlock();
- //Skip updating the hash for folders
- if (Directory.Exists(FilePath))
- return Task.Factory.StartNew(() => this);
+ //Ensure the paths end with the same character
+ if (!oldPath.EndsWith("\\"))
+ oldPath = oldPath + "\\";
+ if (!newPath.EndsWith("\\"))
+ newPath = newPath + "\\";
+
+ ExecuteWithRetry((session, instance) =>
+ {
+ const string hqlUpdate =
+ "update FileState set FilePath = replace(FilePath,:oldPath,:newPath) where FilePath like :oldPath || '%' ";
+ var renames = session.CreateQuery(hqlUpdate)
+ .SetString("oldPath", oldPath)
+ .SetString("newPath", newPath)
+ .ExecuteUpdate();
+ return renames;
+ }, null);
+ }
+
+ public static FileState CreateFor(FileSystemInfo info)
+ {
+ if(info==null)
+ throw new ArgumentNullException("info");
+ Contract.EndContractBlock();
+
+ if (info is DirectoryInfo)
+ return new FileState
+ {
+ FilePath = info.FullName,
+ OverlayStatus = FileOverlayStatus.Unversioned,
+ FileStatus = FileStatus.Created,
+ ShortHash=String.Empty,
+ Id = Guid.NewGuid()
+ };
+
+
+ var shortHash = ((FileInfo)info).ComputeShortHash();
+ var fileState = new FileState
+ {
+ FilePath = info.FullName,
+ OverlayStatus = FileOverlayStatus.Unversioned,
+ FileStatus = FileStatus.Created,
+ ShortHash=shortHash,
+ Id = Guid.NewGuid()
+ };
+ return fileState;
+ }
+
- return Task.Factory.StartNew(() =>
- {
- Checksum = Signature.CalculateMD5(FilePath);
- TopHash =
- Signature.CalculateTreeHash(FilePath, blockSize, algorithm)
- .TopHash.ToHashString();
- })
- .ContinueWith(
- t => this);
+ private static void ExecuteWithRetry(NHibernateDelegate call, object state)
+ {
+ int retries = 3;
+ while (retries > 0)
+ try
+ {
+ using (new SessionScope())
+ {
+ Execute(call, state);
+ return;
+ }
+ }
+ catch (ActiveRecordException )
+ {
+ retries--;
+ if (retries <= 0)
+ throw;
+ }
+ }
+
+ ///
+ /// Mark Unversioned all FileState rows from the database whose path
+ /// starts with one of the removed paths
+ ///
+ ///
+ public static void UnversionPaths(List removed)
+ {
+ if (removed == null)
+ return;
+ if (removed.Count == 0)
+ return;
+
+ //Create a disjunction (list of OR statements
+ var disjunction = new Disjunction();
+ foreach (var path in removed)
+ {
+ //with the restriction FileState.FilePath like '@path%'
+ disjunction.Add(Restrictions.On(s => s.FilePath)
+ .IsLike(path, MatchMode.Start));
+ }
+
+ //Generate a query from the disjunction
+ var query=QueryOver.Of().Where(disjunction);
+
+ ExecuteWithRetry((session,instance)=>
+ {
+ using (var t=session.BeginTransaction())
+ {
+ var states = query.GetExecutableQueryOver(session).List();
+ foreach (var state in states)
+ {
+ state.FileStatus = FileStatus.Unversioned;
+ state.OverlayStatus = FileOverlayStatus.Unversioned;
+ state.Update();
+ }
+ t.Commit();
+ }
+ return null;
+ },null);
}
+
}
[ActiveRecord("Tags")]
@@ -137,23 +537,5 @@ namespace Pithos.Core
public FileState FileState { get; set; }
}
-
- /* [ActiveRecord("hashes")]
- public class FileHash : ActiveRecordLinqBase
- {
- [PrimaryKey]
- public int Id { get; set; }
-
- [Property]
- public int Order { get; set; }
-
- [Property]
- public byte[] Value { get; set; }
-
- [BelongsTo("FileStateID")]
- public FileState FileState { get; set; }
-
- }*/
-
-
+
}