X-Git-Url: https://code.grnet.gr/git/pithos-ms-client/blobdiff_plain/3c43ec9b31676dfbeb6f413a93bd64488d6e0e28..0f369429e94e6c8128658b8f45447abbb0b0a5ca:/trunk/Pithos.Core/PithosMonitor.cs
diff --git a/trunk/Pithos.Core/PithosMonitor.cs b/trunk/Pithos.Core/PithosMonitor.cs
index 27755f3..7ca5a30 100644
--- a/trunk/Pithos.Core/PithosMonitor.cs
+++ b/trunk/Pithos.Core/PithosMonitor.cs
@@ -1,718 +1,577 @@
+#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;
-using System.Collections.Concurrent;
using System.Collections.Generic;
using System.ComponentModel.Composition;
-using System.Diagnostics;
using System.Diagnostics.Contracts;
using System.IO;
using System.Linq;
-using System.Net.NetworkInformation;
-using System.Security.Cryptography;
-using System.ServiceModel.Description;
-using System.Text;
+using System.Reflection;
using System.Threading;
using System.Threading.Tasks;
-using Castle.ActiveRecord.Queries;
-using Microsoft.WindowsAPICodePack.Net;
+using Pithos.Core.Agents;
using Pithos.Interfaces;
-using System.ServiceModel;
+using Pithos.Network;
+using log4net;
namespace Pithos.Core
{
[Export(typeof(PithosMonitor))]
public class PithosMonitor:IDisposable
{
- private const string PithosContainer = "pithos";
- private const string TrashContainer = "trash";
+ private static readonly ILog Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
- [Import]
- public IPithosSettings Settings{get;set;}
-
- [Import]
- public IStatusKeeper StatusKeeper { get; set; }
+ private int _blockSize;
+ private string _blockHash;
[Import]
- public IPithosWorkflow Workflow { get; set; }
+ public IPithosSettings Settings{get;set;}
- [Import]
- public ICloudClient CloudClient { get; set; }
+ private IStatusKeeper _statusKeeper;
[Import]
- public ICloudClient CloudListeningClient { get; set; }
-
- public string UserName { get; set; }
- public string ApiKey { get; set; }
-
- private ServiceHost _statusService { get; set; }
-
- private FileSystemWatcher _watcher;
-
- public bool Pause
+ public IStatusKeeper StatusKeeper
{
- get { return _watcher == null || !_watcher.EnableRaisingEvents; }
+ get { return _statusKeeper; }
set
{
- if (_watcher!=null)
- _watcher.EnableRaisingEvents = !value;
- if (value)
- {
- StatusKeeper.SetPithosStatus(PithosStatus.SyncPaused);
- }
- else
- {
- StatusKeeper.SetPithosStatus(PithosStatus.InSynch);
- }
+ _statusKeeper = value;
+ FileAgent.StatusKeeper = value;
}
}
- public string RootPath { get; set; }
-
-
- CancellationTokenSource _cancellationSource;
-
- readonly BlockingCollection _fileEvents = new BlockingCollection();
- readonly BlockingCollection _uploadEvents = new BlockingCollection();
-
+ private IPithosWorkflow _workflow;
- public void Start()
+ [Import]
+ public IPithosWorkflow Workflow
{
-
- if (_cancellationSource != null)
+ get { return _workflow; }
+ set
{
- if (!_cancellationSource.IsCancellationRequested)
- return;
+ _workflow = value;
+ FileAgent.Workflow = value;
}
- _cancellationSource = new CancellationTokenSource();
-
- var proxyUri = ProxyFromSettings();
- CloudClient.Proxy = proxyUri;
- CloudClient.UsePithos = this.UsePithos;
- EnsurePithosContainers();
- StatusKeeper.StartProcessing(_cancellationSource.Token);
- IndexLocalFiles(RootPath);
- StartMonitoringFiles(RootPath);
+ }
- StartStatusService();
+ public ICloudClient CloudClient { get; set; }
- StartNetwork();
- }
+ public IStatusNotification StatusNotification { get; set; }
- private void EnsurePithosContainers()
- {
- CloudClient.UsePithos = this.UsePithos;
- CloudClient.Authenticate(UserName, ApiKey);
+ //[Import]
+ public FileAgent FileAgent { get; private set; }
- var pithosContainers = new[] {PithosContainer, TrashContainer};
- foreach (var container in pithosContainers)
- {
- if (!CloudClient.ContainerExists(container))
- CloudClient.CreateContainer(container);
- }
- }
+ private WorkflowAgent _workflowAgent;
- private Uri ProxyFromSettings()
- {
- if (Settings.UseManualProxy)
+ [Import]
+ public WorkflowAgent WorkflowAgent
+ {
+ get { return _workflowAgent; }
+ set
{
- var proxyUri = new UriBuilder
- {
- Host = Settings.ProxyServer,
- Port = Settings.ProxyPort
- };
- if (Settings.ProxyAuthentication)
- {
- proxyUri.UserName = Settings.ProxyUsername;
- proxyUri.Password = Settings.ProxyPassword;
- }
- return proxyUri.Uri;
+ _workflowAgent = value;
+ FileAgent.WorkflowAgent = value;
}
- return null;
}
+
+ [Import]
+ public NetworkAgent NetworkAgent { get; set; }
+ [Import]
+ public PollAgent PollAgent { get; set; }
- private void IndexLocalFiles(string path)
+ public string UserName { get; set; }
+ private string _apiKey;
+ public string ApiKey
{
- Trace.TraceInformation("[START] Inxed Local");
- try
- {
- var files =
- from filePath in Directory.EnumerateFiles(path, "*", SearchOption.AllDirectories).AsParallel()
- select filePath;
- StatusKeeper.StoreUnversionedFiles(files);
-
- RestartInterruptedFiles();
- }
- catch (Exception exc)
- {
- Trace.TraceError("[ERROR] Index Local - {0}", exc);
- }
- finally
+ get { return _apiKey; }
+ set
{
- Trace.TraceInformation("[END] Inxed Local");
+ _apiKey = value;
+ if (_accountInfo != null)
+ _accountInfo.Token = value;
}
}
- private void RestartInterruptedFiles()
- {
- var interruptedStates = new[] { FileOverlayStatus.Unversioned, FileOverlayStatus.Modified };
- var filesQuery = from state in FileState.Queryable
- where interruptedStates.Contains(state.OverlayStatus)
- select new WorkflowState
- {
- Path = state.FilePath.ToLower(),
- FileName = Path.GetFileName(state.FilePath).ToLower(),
- Status=state.OverlayStatus==FileOverlayStatus.Unversioned?
- FileStatus.Created:
- FileStatus.Modified,
- TriggeringChange = state.OverlayStatus==FileOverlayStatus.Unversioned?
- WatcherChangeTypes.Created:
- WatcherChangeTypes.Changed
- };
- _uploadEvents.AddFromEnumerable(filesQuery,false);
-
- }
-
- private void StartStatusService()
- {
- // Create a ServiceHost for the CalculatorService type and provide the base address.
- var baseAddress = new Uri("net.pipe://localhost/pithos");
- _statusService = new ServiceHost(typeof(StatusService), baseAddress);
-
- var binding = new NetNamedPipeBinding(NetNamedPipeSecurityMode.None);
-
- _statusService.AddServiceEndpoint(typeof(IStatusService), binding, "net.pipe://localhost/pithos/statuscache");
- _statusService.AddServiceEndpoint(typeof (ISettingsService), binding, "net.pipe://localhost/pithos/settings");
-
-
- //// Add a mex endpoint
- var smb = new ServiceMetadataBehavior
- {
- HttpGetEnabled = true,
- HttpGetUrl = new Uri("http://localhost:30000/pithos/mex")
- };
- _statusService.Description.Behaviors.Add(smb);
+ private AccountInfo _accountInfo;
- _statusService.Open();
- }
-
- private void StopStatusService()
- {
- if (_statusService == null)
- return;
- if (_statusService.State == CommunicationState.Faulted)
- _statusService.Abort();
- else if (_statusService.State != CommunicationState.Closed)
- _statusService.Close();
- _statusService = null;
- }
- private void StartNetwork()
+ public bool Pause
{
-
- bool connected = NetworkListManager.IsConnectedToInternet;
- //If we are not connected retry later
- if (!connected)
+ get { return FileAgent.Pause; }
+ set
{
- Task.Factory.StartNewDelayed(10000, StartNetwork);
- return;
+ FileAgent.Pause = value;
}
+ }
- try
- {
- CloudClient.UsePithos = this.UsePithos;
- CloudClient.Authenticate(UserName, ApiKey);
-
- StartListening(RootPath);
- StartSending();
- }
- catch (Exception)
+ private string _rootPath;
+ public string RootPath
+ {
+ get { return _rootPath; }
+ set
{
- //Faild to authenticate due to network or account error
- //Retry after a while
- Task.Factory.StartNewDelayed(10000, StartNetwork);
+ _rootPath = String.IsNullOrWhiteSpace(value)
+ ? String.Empty
+ : value.ToLower();
}
}
- public bool UsePithos { get; set; }
- internal enum CloudActionType
+ CancellationTokenSource _cancellationSource;
+
+ public PithosMonitor()
{
- Upload=0,
- Download,
- UploadUnconditional,
- DownloadUnconditional,
- DeleteLocal,
- DeleteCloud
+ FileAgent = new FileAgent();
}
+ private bool _started;
- internal class ListenerAction
- {
- public CloudActionType Action { get; set; }
- public FileInfo LocalFile { get; set; }
- public ObjectInfo CloudFile { get; set; }
+ public void Start()
+ {
+ if (String.IsNullOrWhiteSpace(ApiKey))
+ throw new InvalidOperationException("The ApiKey is empty");
+ if (String.IsNullOrWhiteSpace(UserName))
+ throw new InvalidOperationException("The UserName is empty");
+ if (String.IsNullOrWhiteSpace(AuthenticationUrl))
+ throw new InvalidOperationException("The Authentication url is empty");
+ Contract.EndContractBlock();
+
+ //If the account doesn't have a valid path, don't start monitoring but don't throw either
+ if (String.IsNullOrWhiteSpace(RootPath))
+ //TODO; Warn user?
+ return;
- public Lazy LocalHash { get; set; }
+ WorkflowAgent.StatusNotification = StatusNotification;
- public ListenerAction(CloudActionType action, FileInfo localFile, ObjectInfo cloudFile)
+ StatusNotification.NotifyChange("Starting");
+ if (_started)
{
- Action = action;
- LocalFile = localFile;
- CloudFile = cloudFile;
- LocalHash=new Lazy(()=>Signature.CalculateHash(LocalFile.FullName),LazyThreadSafetyMode.ExecutionAndPublication);
+ if (!_cancellationSource.IsCancellationRequested)
+ return;
}
-
- }
+ _cancellationSource = new CancellationTokenSource();
- internal class LocalFileComparer:EqualityComparer
- {
- public override bool Equals(ListenerAction x, ListenerAction y)
+ lock (this)
{
- if (x.Action != y.Action)
- return false;
- if (x.LocalFile != null && y.LocalFile != null && !x.LocalFile.FullName.Equals(y.LocalFile.FullName))
- return false;
- if (x.CloudFile != null && y.CloudFile != null && !x.CloudFile.Hash.Equals(y.CloudFile.Hash))
- return false;
- if (x.CloudFile == null ^ y.CloudFile == null ||
- x.LocalFile == null ^ y.LocalFile == null)
- return false;
- return true;
+ CloudClient = new CloudFilesClient(UserName, ApiKey)
+ {UsePithos = true, AuthenticationUrl = AuthenticationUrl};
+ _accountInfo = CloudClient.Authenticate();
}
+ _accountInfo.SiteUri = AuthenticationUrl;
+ _accountInfo.AccountPath = RootPath;
- public override int GetHashCode(ListenerAction obj)
- {
- var hash1 = (obj.LocalFile == null) ? int.MaxValue : obj.LocalFile.FullName.GetHashCode();
- var hash2 = (obj.CloudFile == null) ? int.MaxValue : obj.CloudFile.Hash.GetHashCode();
- var hash3 = obj.Action.GetHashCode();
- return hash1 ^ hash2 & hash3;
- }
- }
- private BlockingCollection _networkActions=new BlockingCollection();
+ var pithosFolder = Path.Combine(RootPath, FolderConstants.PithosContainer);
+ if (!Directory.Exists(pithosFolder))
+ Directory.CreateDirectory(pithosFolder);
+ //Create the cache folder and ensure it is hidden
+ CreateHiddenFolder(RootPath, FolderConstants.CacheFolder);
- private Timer timer;
+ var policy=CloudClient.GetAccountPolicies(_accountInfo);
- private void StartListening(string accountPath)
- {
+ StatusNotification.NotifyAccount(policy);
+ EnsurePithosContainers();
+
+ StatusKeeper.BlockHash = _blockHash;
+ StatusKeeper.BlockSize = _blockSize;
- ProcessRemoteFiles(accountPath);
+ StatusKeeper.StartProcessing(_cancellationSource.Token);
+ IndexLocalFiles();
+ //Extract the URIs from the string collection
+ var settings = Settings.Accounts.First(s => s.AccountKey == _accountInfo.AccountKey );
+ var selectiveUrls=settings.SelectiveFolders.Cast().Select(url => new Uri(url)).ToArray();
- Task.Factory.StartNew(ProcessListenerActions);
-
- }
+ SetSelectivePaths(selectiveUrls,null,null);
+
+ StartWatcherAgent();
- private Task ProcessRemoteFiles(string accountPath)
- {
- Trace.TraceInformation("[LISTENER] Scheduled");
- return Task.Factory.StartNewDelayed(10000)
- .ContinueWith(t=>CloudClient.ListObjects(PithosContainer))
- .ContinueWith(task =>
- {
- Trace.TraceInformation("[LISTENER] Start Processing");
-
- var remoteObjects = task.Result;
-/*
- if (remoteObjects.Count == 0)
- return;
-*/
-
- var pithosDir = new DirectoryInfo(accountPath);
-
- var remoteFiles = from info in remoteObjects
- select info.Name.ToLower();
-
- var onlyLocal = from localFile in pithosDir.EnumerateFiles()
- where !remoteFiles.Contains(localFile.Name.ToLower())
- select new ListenerAction(CloudActionType.UploadUnconditional, localFile,null);
-
-
-
- var localNames = from info in pithosDir.EnumerateFiles()
- select info.Name.ToLower();
-
- var onlyRemote = from upFile in remoteObjects
- where !localNames.Contains(upFile.Name.ToLower())
- select new ListenerAction(CloudActionType.DownloadUnconditional,null,upFile);
-
-
- var commonObjects = from upFile in remoteObjects
- join localFile in pithosDir.EnumerateFiles()
- on upFile.Name.ToLower() equals localFile.Name.ToLower()
- select new ListenerAction(CloudActionType.Download, localFile, upFile);
-
- var uniques =
- onlyLocal.Union(onlyRemote).Union(commonObjects)
- .Except(_networkActions,new LocalFileComparer());
-
- _networkActions.AddFromEnumerable(uniques, false);
-
- Trace.TraceInformation("[LISTENER] End Processing");
-
- }
- ).ContinueWith(t=>
- {
- if (t.IsFaulted)
- {
- Trace.TraceError("[LISTENER] Exception: {0}",t.Exception);
- }
- else
- {
- Trace.TraceInformation("[LISTENER] Finished");
- }
- ProcessRemoteFiles(accountPath);
- });
+ StartNetworkAgent();
+
+ WorkflowAgent.RestartInterruptedFiles(_accountInfo);
+ _started = true;
}
- private void ProcessListenerActions()
+ private void EnsurePithosContainers()
{
- foreach(var action in _networkActions.GetConsumingEnumerable())
- {
- Trace.TraceInformation("[ACTION] Start Processing {0}:{1}->{2}",action.Action,action.LocalFile,action.CloudFile.Name);
- var localFile = action.LocalFile;
- var cloudFile = action.CloudFile;
- var downloadPath = (cloudFile == null)? String.Empty
- : Path.Combine(RootPath,cloudFile.Name);
- try
- {
- switch (action.Action)
- {
- case CloudActionType.UploadUnconditional:
-
- UploadCloudFile(localFile.Name,localFile.Length,localFile.FullName,action.LocalHash.Value);
- break;
- case CloudActionType.DownloadUnconditional:
- DownloadCloudFile(PithosContainer,cloudFile.Name,downloadPath);
- break;
- case CloudActionType.Download:
- if (File.Exists(downloadPath))
- {
- if (cloudFile.Hash !=action.LocalHash.Value)
- {
- var lastLocalTime =localFile.LastWriteTime;
- var lastUpTime =cloudFile.Last_Modified;
- if (lastUpTime <=lastLocalTime)
- {
- //Files in conflict
- StatusKeeper.SetFileOverlayStatus(downloadPath,FileOverlayStatus.Conflict);
- }
- else
- DownloadCloudFile(PithosContainer,action.CloudFile.Name,downloadPath);
- }
- }
- else
- DownloadCloudFile(PithosContainer,action.CloudFile.Name,downloadPath);
- break;
- }
- Trace.TraceInformation("[ACTION] End Processing {0}:{1}->{2}", action.Action, action.LocalFile, action.CloudFile.Name);
- }
- catch (Exception exc)
- {
- Trace.TraceError("[REQUEUE] {0} : {1} -> {2} due to exception\r\n{3}",
- action.Action, action.LocalFile,action.CloudFile,exc);
- _networkActions.Add(action);
+ //Create the two default containers if they are missing
+ var pithosContainers = new List{ FolderConstants.TrashContainer,FolderConstants.PithosContainer};
+ foreach (var container in pithosContainers)
+ {
+ var info=CloudClient.GetContainerInfo(UserName, container);
+ if (info == ContainerInfo.Empty)
+ {
+ CloudClient.CreateContainer(UserName, container);
+ info = CloudClient.GetContainerInfo(UserName, container);
}
+ _blockSize = info.BlockSize;
+ _blockHash = info.BlockHash;
+ _accountInfo.BlockSize = _blockSize;
+ _accountInfo.BlockHash = _blockHash;
}
}
-
-
- private void StartMonitoringFiles(string path)
- {
- _watcher = new FileSystemWatcher(path);
- _watcher.Changed += OnFileEvent;
- _watcher.Created += OnFileEvent;
- _watcher.Deleted += OnFileEvent;
- _watcher.Renamed += OnRenameEvent;
- _watcher.EnableRaisingEvents = true;
-
- Task.Factory.StartNew(ProcesFileEvents,_cancellationSource.Token);
- }
+ public string AuthenticationUrl { get; set; }
- private void ProcesFileEvents()
+ private void IndexLocalFiles()
{
- foreach (var state in _fileEvents.GetConsumingEnumerable())
+ using (ThreadContext.Stacks["Operation"].Push("Indexing local files"))
{
+
try
{
- var networkState=StatusKeeper.GetNetworkState(state.Path);
- //Skip if the file is already being downloaded or uploaded and
- //the change is create or modify
- if (networkState != NetworkState.None &&
- (
- state.TriggeringChange==WatcherChangeTypes.Created ||
- state.TriggeringChange==WatcherChangeTypes.Changed
- ))
- continue;
- UpdateFileStatus(state);
- UpdateOverlayStatus(state);
- UpdateFileChecksum(state);
- _uploadEvents.Add(state);
+ //StatusNotification.NotifyChange("Indexing Local Files");
+ Log.Info("Start local indexing");
+ StatusNotification.SetPithosStatus(PithosStatus.LocalSyncing,"Indexing Local Files");
+
+ var cachePath = Path.Combine(RootPath, FolderConstants.CacheFolder);
+ var directory = new DirectoryInfo(RootPath);
+ var files =
+ from file in directory.EnumerateFiles("*", SearchOption.AllDirectories)
+ where !file.FullName.StartsWith(cachePath, StringComparison.InvariantCultureIgnoreCase) &&
+ !file.Extension.Equals("ignore", StringComparison.InvariantCultureIgnoreCase)
+ select file;
+ StatusKeeper.ProcessExistingFiles(files);
+
}
- catch (OperationCanceledException exc)
+ catch (Exception exc)
{
- Trace.TraceError("[ERROR] File Event Processing:\r{0}", exc);
- throw;
+ Log.Error("[ERROR]", exc);
}
- catch (Exception exc)
+ finally
{
- Trace.TraceError("[ERROR] File Event Processing:\r{0}",exc);
+ Log.Info("[END]");
}
+ StatusNotification.SetPithosStatus(PithosStatus.LocalComplete,"Indexing Completed");
}
}
- private void StartSending()
- {
- Task.Factory.StartNew(() =>
- {
- foreach (var state in _uploadEvents.GetConsumingEnumerable())
- {
- try
- {
- SynchToCloud(state);
- }
- catch (OperationCanceledException)
- {
- throw;
- }
- catch(Exception ex)
- {
- Trace.TraceError("[ERROR] Synch for {0}:\r{1}",state.FileName,ex);
- }
- }
-
- },_cancellationSource.Token);
- }
+
+
- private WorkflowState SynchToCloud(WorkflowState state)
+ /* private void StartWorkflowAgent()
{
- if (state.Skip)
- return state;
- string path = state.Path;
- string fileName = Path.GetFileName(path);
+ WorkflowAgent.StatusNotification = StatusNotification;
+
+/* //On Vista and up we can check for a network connection
+ bool connected=Environment.OSVersion.Version.Major < 6 || NetworkListManager.IsConnectedToInternet;
+ //If we are not connected retry later
+ if (!connected)
+ {
+ Task.Factory.StartNewDelayed(10000, StartWorkflowAgent);
+ return;
+ }#1#
- switch(state.Status)
+ try
{
- case FileStatus.Created:
- case FileStatus.Modified:
- var info = new FileInfo(path);
- long fileSize = info.Length;
- UploadCloudFile(fileName, fileSize, path,state.Hash);
- break;
- case FileStatus.Deleted:
- DeleteCloudFile(fileName);
- break;
- case FileStatus.Renamed:
- RenameCloudFile(state);
- break;
+ WorkflowAgent.Start();
}
- return state;
- }
+ catch (Exception)
+ {
+ //Faild to authenticate due to network or account error
+ //Retry after a while
+ Task.Factory.StartNewDelayed(10000, StartWorkflowAgent);
+ }
+ }*/
+
- private void RenameCloudFile(WorkflowState state)
+ private void StartNetworkAgent()
{
- this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Modified);
+ NetworkAgent.StatusNotification = StatusNotification;
+ //TODO: The Network and Poll agents are not account specific
+ //They should be moved outside PithosMonitor
+ NetworkAgent.Start();
+ PollAgent.AddAccount(_accountInfo);
- CloudClient.MoveObject(PithosContainer, state.OldFileName,PithosContainer, state.FileName);
+ PollAgent.StatusNotification = StatusNotification;
- this.StatusKeeper.SetFileStatus(state.Path, FileStatus.Unchanged);
- this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Normal);
- Workflow.RaiseChangeNotification(state.Path);
+ PollAgent.PollRemoteFiles();
}
- private void DeleteCloudFile(string fileName)
+ //Make sure a hidden cache folder exists to store partial downloads
+ private static void CreateHiddenFolder(string rootPath, string folderName)
{
- Contract.Requires(!Path.IsPathRooted(fileName));
+ if (String.IsNullOrWhiteSpace(rootPath))
+ throw new ArgumentNullException("rootPath");
+ if (!Path.IsPathRooted(rootPath))
+ throw new ArgumentException("rootPath");
+ if (String.IsNullOrWhiteSpace(folderName))
+ throw new ArgumentNullException("folderName");
+ Contract.EndContractBlock();
- this.StatusKeeper.SetFileOverlayStatus(fileName, FileOverlayStatus.Modified);
+ var folder = Path.Combine(rootPath, folderName);
+ if (!Directory.Exists(folder))
+ {
+ var info = Directory.CreateDirectory(folder);
+ info.Attributes |= FileAttributes.Hidden;
- CloudClient.MoveObject(PithosContainer,fileName,TrashContainer,fileName);
- this.StatusKeeper.ClearFileStatus(fileName);
- this.StatusKeeper.RemoveFileOverlayStatus(fileName);
+ Log.InfoFormat("Created cache Folder: {0}", folder);
+ }
+ else
+ {
+ var info = new DirectoryInfo(folder);
+ if ((info.Attributes & FileAttributes.Hidden) == 0)
+ {
+ info.Attributes |= FileAttributes.Hidden;
+ Log.InfoFormat("Reset cache folder to hidden: {0}", folder);
+ }
+ }
}
- private void DownloadCloudFile(string container, string fileName, string localPath)
- {
- StatusKeeper.SetNetworkState(localPath,NetworkState.Downloading);
- CloudClient.GetObject(container, fileName, localPath)
- .ContinueWith(t=>
- CloudClient.GetObjectInfo(container,fileName))
- .ContinueWith(t=>
- StatusKeeper.StoreInfo(fileName,t.Result))
- .ContinueWith(t=>
- StatusKeeper.SetNetworkState(localPath,NetworkState.None))
- .Wait();
- }
+
- private void UploadCloudFile(string fileName, long fileSize, string path,string hash)
+
+ private void StartWatcherAgent()
{
- Contract.Requires(!Path.IsPathRooted(fileName));
+ if (Log.IsDebugEnabled)
+ Log.DebugFormat("Start Folder Monitoring [{0}]",RootPath);
- StatusKeeper.SetNetworkState(fileName,NetworkState.Uploading);
+ AgentLocator.Register(FileAgent,RootPath);
- //Even if GetObjectInfo times out, we can proceed with the upload
- var info = CloudClient.GetObjectInfo(PithosContainer, fileName);
- Task.Factory.StartNew(() =>
- {
- if (hash != info.Hash)
- {
- Task.Factory.StartNew(() =>
- this.StatusKeeper.SetFileOverlayStatus(path, FileOverlayStatus.Modified))
- .ContinueWith(t =>
- CloudClient.PutObject(PithosContainer, fileName, path, hash));
- }
- else
- {
- this.StatusKeeper.StoreInfo(path,info);
- }
- }
- )
- .ContinueWith(t =>
- this.StatusKeeper.SetFileState(path, FileStatus.Unchanged, FileOverlayStatus.Normal))
- .ContinueWith(t=>
- this.StatusKeeper.SetNetworkState(path,NetworkState.None))
- .Wait();
- Workflow.RaiseChangeNotification(path);
+ FileAgent.IdleTimeout = Settings.FileIdleTimeout;
+ FileAgent.StatusKeeper = StatusKeeper;
+ FileAgent.StatusNotification = StatusNotification;
+ FileAgent.Workflow = Workflow;
+ FileAgent.CachePath = Path.Combine(RootPath, FolderConstants.CacheFolder);
+ FileAgent.Start(_accountInfo, RootPath);
}
- private Dictionary _statusDict = new Dictionary
+ public void Stop()
{
- {WatcherChangeTypes.Created,FileStatus.Created},
- {WatcherChangeTypes.Changed,FileStatus.Modified},
- {WatcherChangeTypes.Deleted,FileStatus.Deleted},
- {WatcherChangeTypes.Renamed,FileStatus.Renamed}
- };
+ AgentLocator.Remove(RootPath);
- private WorkflowState UpdateFileStatus(WorkflowState state)
- {
- string path = state.Path;
- FileStatus status = _statusDict[state.TriggeringChange];
- var oldStatus = Workflow.StatusKeeper.GetFileStatus(path);
- if (status == oldStatus)
- {
- state.Status = status;
- state.Skip = true;
- return state;
- }
- if (state.Status == FileStatus.Renamed)
- Workflow.ClearFileStatus(path);
+ if (FileAgent!=null)
+ FileAgent.Stop();
+ FileAgent = null;
+ }
- state.Status = Workflow.SetFileStatus(path, status);
- return state;
+
+ ~PithosMonitor()
+ {
+ Dispose(false);
}
- private WorkflowState UpdateOverlayStatus(WorkflowState state)
- {
- if (state.Skip)
- return state;
+ public void Dispose()
+ {
+ Dispose(true);
+ GC.SuppressFinalize(this);
+ }
- switch (state.Status)
+ protected virtual void Dispose(bool disposing)
+ {
+ if (disposing)
{
- case FileStatus.Created:
- case FileStatus.Modified:
- this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Modified);
- break;
- case FileStatus.Deleted:
- this.StatusKeeper.RemoveFileOverlayStatus(state.Path);
- break;
- case FileStatus.Renamed:
- this.StatusKeeper.RemoveFileOverlayStatus(state.OldPath);
- this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Modified);
- break;
- case FileStatus.Unchanged:
- this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Normal);
- break;
+ Stop();
}
-
- if (state.Status==FileStatus.Deleted)
- Workflow.RaiseChangeNotification(Path.GetDirectoryName(state.Path));
- else
- Workflow.RaiseChangeNotification(state.Path);
- return state;
}
- private WorkflowState UpdateFileChecksum(WorkflowState state)
+ public void MoveFileStates(string oldPath, string newPath)
{
- if (state.Skip)
- return state;
-
- if (state.Status == FileStatus.Deleted)
- return state;
-
- string path = state.Path;
- string hash = Signature.CalculateHash(path);
-
- StatusKeeper.UpdateFileChecksum(path, hash);
+ 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();
- state.Hash = hash;
- return state;
+ StatusKeeper.ChangeRoots(oldPath, newPath);
}
-
-
- private FileSystemEventArgs CalculateSignature(FileSystemEventArgs arg)
+ public void SetSelectivePaths(Uri[] uris,Uri[] added, Uri[] removed)
{
- Debug.WriteLine(String.Format("{0} {1} {2}", arg.ChangeType, arg.Name, arg.FullPath), "INFO");
- return arg;
- }
+ //Convert the uris to paths
+ var selectivePaths = UrisToFilePaths(uris);
+
+ FileAgent.SelectivePaths=selectivePaths;
+ WorkflowAgent.SelectivePaths = selectivePaths;
+ PollAgent.SetSyncUris(_accountInfo.AccountKey,uris);
+
+ var removedPaths = UrisToFilePaths(removed);
+ UnversionSelectivePaths(removedPaths);
- void OnFileEvent(object sender, FileSystemEventArgs e)
- {
- _fileEvents.Add(new WorkflowState{Path=e.FullPath,FileName = e.Name,TriggeringChange=e.ChangeType});
}
- void OnRenameEvent(object sender, RenamedEventArgs e)
+ ///
+ /// Mark all unselected paths as Unversioned
+ ///
+ ///
+ private void UnversionSelectivePaths(List removed)
{
- _fileEvents.Add(new WorkflowState { OldPath=e.OldFullPath,OldFileName=e.OldName,
- Path = e.FullPath, FileName = e.Name, TriggeringChange = e.ChangeType });
- }
+ if (removed == null)
+ return;
- public void Stop()
- {
- if (_watcher != null)
- {
- _watcher.Changed -= OnFileEvent;
- _watcher.Created -= OnFileEvent;
- _watcher.Deleted -= OnFileEvent;
- _watcher.Renamed -= OnRenameEvent;
- _watcher.Dispose();
- }
- _watcher = null;
- _fileEvents.CompleteAdding();
- if (timer != null)
- timer.Dispose();
- timer = null;
- StopStatusService();
+ //Ensure we remove any file state below the deleted folders
+ FileState.UnversionPaths(removed);
}
- ~PithosMonitor()
+ ///
+ /// Return a list of absolute filepaths from a list of Uris
+ ///
+ ///
+ ///
+ private List UrisToFilePaths(IEnumerable uris)
{
- Dispose(false);
- }
+ if (uris == null)
+ return new List();
- public void Dispose()
- {
- Dispose(true);
- GC.SuppressFinalize(this);
+ var own = (from uri in uris
+ where uri.ToString().StartsWith(_accountInfo.StorageUri.ToString())
+ let relativePath = _accountInfo.StorageUri.MakeRelativeUri(uri).RelativeUriToFilePath()
+ //Trim the account name
+ select Path.Combine(RootPath, relativePath.After(_accountInfo.UserName + '\\'))).ToList();
+ var others= (from uri in uris
+ where !uri.ToString().StartsWith(_accountInfo.StorageUri.ToString())
+ let relativePath = _accountInfo.StorageUri.MakeRelativeUri(uri).RelativeUriToFilePath()
+ //Trim the account name
+ select Path.Combine(RootPath,"others-shared", relativePath)).ToList();
+ return own.Union(others).ToList();
}
- protected virtual void Dispose(bool disposing)
+
+ public ObjectInfo GetObjectInfo(string filePath)
{
- if (disposing)
+ if (String.IsNullOrWhiteSpace(filePath))
+ throw new ArgumentNullException("filePath");
+ Contract.EndContractBlock();
+
+ var file=new FileInfo(filePath);
+ string relativeUrl;//=file.AsRelativeUrlTo(this.RootPath);
+ var relativePath = file.AsRelativeTo(RootPath);
+
+ string accountName,container;
+
+ var parts=relativePath.Split('\\');
+
+ var accountInfo = _accountInfo;
+ if (relativePath.StartsWith(FolderConstants.OthersFolder))
+ {
+ accountName = parts[1];
+ container = parts[2];
+ relativeUrl = String.Join("/", parts.Splice(3));
+ //Create the root URL for the target account
+ var oldName = UserName;
+ var absoluteUri = _accountInfo.StorageUri.AbsoluteUri;
+ var nameIndex=absoluteUri.IndexOf(oldName, StringComparison.Ordinal);
+ var root=absoluteUri.Substring(0, nameIndex);
+
+ accountInfo = new AccountInfo
+ {
+ UserName = accountName,
+ AccountPath = Path.Combine(accountInfo.AccountPath, parts[0], parts[1]),
+ StorageUri = new Uri(root + accountName),
+ BlockHash=accountInfo.BlockHash,
+ BlockSize=accountInfo.BlockSize,
+ Token=accountInfo.Token
+ };
+ }
+ else
{
- Stop();
+ accountName = UserName;
+ container = parts[0];
+ relativeUrl = String.Join("/", parts.Splice(1));
}
+
+ var client = new CloudFilesClient(accountInfo);
+ var objectInfo=client.GetObjectInfo(accountName, container, relativeUrl);
+ return objectInfo;
}
+
+ public Task GetContainerInfo(string filePath)
+ {
+ if (String.IsNullOrWhiteSpace(filePath))
+ throw new ArgumentNullException("filePath");
+ Contract.EndContractBlock();
+ var file=new FileInfo(filePath);
+ var relativePath = file.AsRelativeTo(RootPath);
+
+ string accountName,container;
+
+ var parts=relativePath.Split('\\');
+
+ var accountInfo = _accountInfo;
+ if (relativePath.StartsWith(FolderConstants.OthersFolder))
+ {
+ accountName = parts[1];
+ container = parts[2];
+ //Create the root URL for the target account
+ var oldName = UserName;
+ var absoluteUri = _accountInfo.StorageUri.AbsoluteUri;
+ var nameIndex=absoluteUri.IndexOf(oldName, StringComparison.Ordinal);
+ var root=absoluteUri.Substring(0, nameIndex);
+
+ accountInfo = new AccountInfo
+ {
+ UserName = accountName,
+ AccountPath = Path.Combine(accountInfo.AccountPath, parts[0], parts[1]),
+ StorageUri = new Uri(root + accountName),
+ BlockHash=accountInfo.BlockHash,
+ BlockSize=accountInfo.BlockSize,
+ Token=accountInfo.Token
+ };
+ }
+ else
+ {
+ accountName = UserName;
+ container = parts[0];
+ }
+ return Task.Factory.StartNew(() =>
+ {
+ var client = new CloudFilesClient(accountInfo);
+ var containerInfo = client.GetContainerInfo(accountName, container);
+ return containerInfo;
+ });
+ }
}
}