+#region
+/* -----------------------------------------------------------------------
+ * <copyright file="PithosMonitor.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.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 static readonly ILog Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+ private int _blockSize;
+ private string _blockHash;
+
[Import]
public IPithosSettings Settings{get;set;}
- [Import]
- public IStatusKeeper StatusKeeper { get; set; }
+ private IStatusKeeper _statusKeeper;
[Import]
- public IPithosWorkflow Workflow { get; set; }
+ public IStatusKeeper StatusKeeper
+ {
+ get { return _statusKeeper; }
+ set
+ {
+ _statusKeeper = value;
+ FileAgent.StatusKeeper = value;
+ }
+ }
+
+
+ private IPithosWorkflow _workflow;
[Import]
+ public IPithosWorkflow Workflow
+ {
+ get { return _workflow; }
+ set
+ {
+ _workflow = value;
+ FileAgent.Workflow = value;
+ }
+ }
+
public ICloudClient CloudClient { get; set; }
+ public IStatusNotification StatusNotification { get; set; }
+
+ //[Import]
+ public FileAgent FileAgent { get; private set; }
+
+ private WorkflowAgent _workflowAgent;
+
+ [Import]
+ public WorkflowAgent WorkflowAgent
+ {
+ get { return _workflowAgent; }
+ set
+ {
+ _workflowAgent = value;
+ FileAgent.WorkflowAgent = value;
+ }
+ }
+
+ [Import]
+ public NetworkAgent NetworkAgent { get; set; }
[Import]
- public ICloudClient CloudListeningClient { get; set; }
+ public PollAgent PollAgent { get; set; }
public string UserName { get; set; }
- public string ApiKey { get; set; }
+ private string _apiKey;
+ public string ApiKey
+ {
+ get { return _apiKey; }
+ set
+ {
+ _apiKey = value;
+ if (_accountInfo != null)
+ _accountInfo.Token = value;
+ }
+ }
+
+ private AccountInfo _accountInfo;
+
+
+
- private ServiceHost _statusService { get; set; }
- private FileSystemWatcher _watcher;
public bool Pause
{
- get { return _watcher == null || !_watcher.EnableRaisingEvents; }
+ get { return FileAgent.Pause; }
set
{
- if (_watcher!=null)
- _watcher.EnableRaisingEvents = !value;
+ FileAgent.Pause = value;
if (value)
{
StatusKeeper.SetPithosStatus(PithosStatus.SyncPaused);
+ StatusNotification.NotifyChange("Paused");
}
else
{
StatusKeeper.SetPithosStatus(PithosStatus.InSynch);
+ StatusNotification.NotifyChange("Synchronizing");
}
}
}
- public string RootPath { get; set; }
+ private string _rootPath;
+ public string RootPath
+ {
+ get { return _rootPath; }
+ set
+ {
+ _rootPath = String.IsNullOrWhiteSpace(value)
+ ? String.Empty
+ : value.ToLower();
+ }
+ }
CancellationTokenSource _cancellationSource;
- readonly BlockingCollection<WorkflowState> _fileEvents = new BlockingCollection<WorkflowState>();
- readonly BlockingCollection<WorkflowState> _uploadEvents = new BlockingCollection<WorkflowState>();
+ public PithosMonitor()
+ {
+ FileAgent = new FileAgent();
-
+ }
+ private bool _started;
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;
+
+ WorkflowAgent.StatusNotification = StatusNotification;
- if (_cancellationSource != null)
+ StatusNotification.NotifyChange("Starting");
+ if (_started)
{
if (!_cancellationSource.IsCancellationRequested)
return;
}
_cancellationSource = new CancellationTokenSource();
- var proxyUri = ProxyFromSettings();
- CloudClient.Proxy = proxyUri;
- //CloudClient.UsePithos = true;
- IndexLocalFiles(RootPath);
- StartMonitoringFiles(RootPath);
- StartStatusService();
+ CloudClient = new CloudFilesClient(UserName, ApiKey)
+ {UsePithos = true, AuthenticationUrl = AuthenticationUrl};
- StartNetwork();
- }
- private Uri ProxyFromSettings()
- {
- if (Settings.UseManualProxy)
- {
- var proxyUri = new UriBuilder
- {
- Host = Settings.ProxyServer,
- Port = Settings.ProxyPort
- };
- if (Settings.ProxyAuthentication)
- {
- proxyUri.UserName = Settings.ProxyUsername;
- proxyUri.Password = Settings.ProxyPassword;
- }
- return proxyUri.Uri;
- }
- return null;
- }
+ _accountInfo = CloudClient.Authenticate();
+ _accountInfo.SiteUri = AuthenticationUrl;
+ _accountInfo.AccountPath = RootPath;
- private void IndexLocalFiles(string path)
- {
- 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
- {
- Trace.TraceInformation("[END] Inxed Local");
- }
- }
+ 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 void RestartInterruptedFiles()
- {
- var interruptedStates = new[] { FileOverlayStatus.Unversioned, FileOverlayStatus.Synch };
- 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);
-
- }
+ var policy=CloudClient.GetAccountPolicies(_accountInfo);
- 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);
+ StatusNotification.NotifyAccount(policy);
+ EnsurePithosContainers();
- var binding = new NetNamedPipeBinding(NetNamedPipeSecurityMode.None);
+ StatusKeeper.BlockHash = _blockHash;
+ StatusKeeper.BlockSize = _blockSize;
- _statusService.AddServiceEndpoint(typeof(IStatusService), binding, "net.pipe://localhost/pithos/statuscache");
- _statusService.AddServiceEndpoint(typeof (ISettingsService), binding, "net.pipe://localhost/pithos/settings");
+ StatusKeeper.StartProcessing(_cancellationSource.Token);
+ IndexLocalFiles();
+ //Extract the URIs from the string collection
+ var settings = Settings.Accounts.First(s => s.AccountName == _accountInfo.UserName);
+ var selectiveUrls=settings.SelectiveFolders.Cast<string>().Select(url => new Uri(url)).ToArray();
+ SetSelectivePaths(selectiveUrls,null,null);
+
+ StartWatcherAgent();
- //// Add a mex endpoint
- var smb = new ServiceMetadataBehavior
- {
- HttpGetEnabled = true,
- HttpGetUrl = new Uri("http://localhost:30000/pithos/mex")
- };
- _statusService.Description.Behaviors.Add(smb);
+ StartNetworkAgent();
+
+ WorkflowAgent.RestartInterruptedFiles(_accountInfo);
+ _started = true;
+ }
+ private void EnsurePithosContainers()
+ {
- _statusService.Open();
+ //Create the two default containers if they are missing
+ var pithosContainers = new List<string>{ 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 StopStatusService()
- {
- if (_statusService == null)
- return;
+ public string AuthenticationUrl { get; set; }
- if (_statusService.State == CommunicationState.Faulted)
- _statusService.Abort();
- else if (_statusService.State != CommunicationState.Closed)
- _statusService.Close();
- _statusService = null;
+ private void IndexLocalFiles()
+ {
+ StatusNotification.NotifyChange("Indexing Local Files");
+ using (ThreadContext.Stacks["Monitor"].Push("Indexing local files"))
+ {
+ Log.Info("START");
+ try
+ {
+ 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 (Exception exc)
+ {
+ Log.Error("[ERROR]", exc);
+ }
+ finally
+ {
+ Log.Info("[END]");
+ }
+ }
}
+
+
+
- private void StartNetwork()
+ /* private void StartWorkflowAgent()
{
+ WorkflowAgent.StatusNotification = StatusNotification;
- bool connected = NetworkListManager.IsConnectedToInternet;
+/* //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, StartNetwork);
+ Task.Factory.StartNewDelayed(10000, StartWorkflowAgent);
return;
- }
+ }#1#
try
{
- CloudClient.UsePithos = false;
- CloudClient.Authenticate(UserName, ApiKey);
-
- StartListening(RootPath);
- StartSending();
+ WorkflowAgent.Start();
}
catch (Exception)
{
//Faild to authenticate due to network or account error
//Retry after a while
- Task.Factory.StartNewDelayed(10000, StartNetwork);
+ Task.Factory.StartNewDelayed(10000, StartWorkflowAgent);
}
- }
-
- internal enum CloudActionType
- {
- Upload=0,
- Download,
- UploadUnconditional,
- DownloadUnconditional,
- DeleteLocal,
- DeleteCloud
- }
+ }*/
- internal class ListenerAction
+ internal class LocalFileComparer:EqualityComparer<CloudAction>
{
- public CloudActionType Action { get; set; }
- public FileInfo LocalFile { get; set; }
- public ObjectInfo CloudFile { get; set; }
-
- public Lazy<string> LocalHash { get; set; }
-
- public ListenerAction(CloudActionType action, FileInfo localFile, ObjectInfo cloudFile)
- {
- Action = action;
- LocalFile = localFile;
- CloudFile = cloudFile;
- LocalHash=new Lazy<string>(()=>Signature.CalculateHash(LocalFile.FullName),LazyThreadSafetyMode.ExecutionAndPublication);
- }
-
- }
-
- internal class LocalFileComparer:EqualityComparer<ListenerAction>
- {
- public override bool Equals(ListenerAction x, ListenerAction y)
+ public override bool Equals(CloudAction x, CloudAction y)
{
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 )
+ {
+ if (x.CloudFile.Hash == null & y.CloudFile.Hash != null)
+ return false;
+ if (x.CloudFile.Hash != null & y.CloudFile.Hash == null)
+ return false;
+ if (x.CloudFile.Hash == null & y.CloudFile.Hash == null)
+ return (x.CloudFile.Name == y.CloudFile.Name);
+ if (!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;
}
- public override int GetHashCode(ListenerAction obj)
+ public override int GetHashCode(CloudAction obj)
{
+ if (obj == null)
+ return 0;
var hash1 = (obj.LocalFile == null) ? int.MaxValue : obj.LocalFile.FullName.GetHashCode();
- var hash2 = (obj.CloudFile == null) ? int.MaxValue : obj.CloudFile.Hash.GetHashCode();
+ var hash2 = (obj.CloudFile == null) ? int.MaxValue : (obj.CloudFile.Hash ?? obj.CloudFile.Name??"").GetHashCode();
var hash3 = obj.Action.GetHashCode();
return hash1 ^ hash2 & hash3;
}
- }
-
- private BlockingCollection<ListenerAction> _networkActions=new BlockingCollection<ListenerAction>();
+ }
- private Timer timer;
-
- private void StartListening(string accountPath)
+ private void StartNetworkAgent()
{
-
- ProcessRemoteFiles(accountPath);
- Task.Factory.StartNew(ProcessListenerActions);
+ NetworkAgent.StatusNotification = StatusNotification;
- }
+ NetworkAgent.Start();
- private Task ProcessRemoteFiles(string accountPath)
- {
- Trace.TraceInformation("[LISTENER] Scheduled");
- return Task.Factory.StartNewDelayed(10000)
- .ContinueWith(t=>CloudClient.ListObjects("PITHOS"))
- .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);
- });
- }
+ PollAgent.AddAccount(_accountInfo);
- private void ProcessListenerActions()
- {
- foreach(var action in _networkActions.GetConsumingEnumerable())
- {
- Trace.TraceInformation("[ACTION] Start Processing {0}:{1}->{2}",action.Action,action.LocalFile,action.CloudFile);
- 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("PITHOS",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("PITHOS",action.CloudFile.Name,downloadPath);
- }
- }
- else
- DownloadCloudFile("PITHOS",action.CloudFile.Name,downloadPath);
- break;
- }
- Trace.TraceInformation("[ACTION] End Processing {0}:{1}->{2}", action.Action, action.LocalFile, action.CloudFile);
- }
- catch (Exception exc)
- {
- Trace.TraceError("[REQUEUE] {0} : {1} -> {2} due to exception\r\n{3}",
- action.Action, action.LocalFile,action.CloudFile,exc);
+ PollAgent.StatusNotification = StatusNotification;
- _networkActions.Add(action);
- }
- }
+ PollAgent.PollRemoteFiles();
}
-
-
- private void StartMonitoringFiles(string path)
+ //Make sure a hidden cache folder exists to store partial downloads
+ private static void CreateHiddenFolder(string rootPath, string folderName)
{
- _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);
- }
+ 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();
+
+ var folder = Path.Combine(rootPath, folderName);
+ if (!Directory.Exists(folder))
+ {
+ var info = Directory.CreateDirectory(folder);
+ info.Attributes |= FileAttributes.Hidden;
- private void ProcesFileEvents()
- {
- foreach (var state in _fileEvents.GetConsumingEnumerable())
+ Log.InfoFormat("Created cache Folder: {0}", folder);
+ }
+ else
{
- 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);
- }
- catch (OperationCanceledException exc)
- {
- Trace.TraceError("[ERROR] File Event Processing:\r{0}", exc);
- throw;
- }
- catch (Exception exc)
+ var info = new DirectoryInfo(folder);
+ if ((info.Attributes & FileAttributes.Hidden) == 0)
{
- Trace.TraceError("[ERROR] File Event Processing:\r{0}",exc);
- }
+ info.Attributes |= FileAttributes.Hidden;
+ Log.InfoFormat("Reset cache folder to hidden: {0}", folder);
+ }
}
}
- 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 StartWatcherAgent()
{
- if (state.Skip)
- return state;
- string path = state.Path;
- string fileName = Path.GetFileName(path);
+ AgentLocator<FileAgent>.Register(FileAgent,RootPath);
- switch(state.Status)
- {
- 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;
- }
- return state;
+ FileAgent.StatusKeeper = StatusKeeper;
+ FileAgent.Workflow = Workflow;
+ FileAgent.CachePath = Path.Combine(RootPath, FolderConstants.CacheFolder);
+ FileAgent.Start(_accountInfo, RootPath);
}
- private void RenameCloudFile(WorkflowState state)
+ public void Stop()
{
- this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Synch);
+ AgentLocator<FileAgent>.Remove(RootPath);
-
-
- CloudClient.MoveObject("PITHOS", state.OldFileName, state.FileName);
-
- this.StatusKeeper.SetFileStatus(state.Path, FileStatus.Unchanged);
- this.StatusKeeper.SetFileOverlayStatus(state.Path, FileOverlayStatus.Normal);
- Workflow.RaiseChangeNotification(state.Path);
+ if (FileAgent!=null)
+ FileAgent.Stop();
+ FileAgent = null;
}
- private void DeleteCloudFile(string fileName)
- {
- Contract.Requires(!Path.IsPathRooted(fileName));
- this.StatusKeeper.SetFileOverlayStatus(fileName, FileOverlayStatus.Synch);
- CloudClient.DeleteObject("PITHOS", fileName);
- this.StatusKeeper.ClearFileStatus(fileName);
- this.StatusKeeper.RemoveFileOverlayStatus(fileName);
+ ~PithosMonitor()
+ {
+ Dispose(false);
}
- private void DownloadCloudFile(string container, string fileName, string localPath)
+ public void Dispose()
{
- 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();
+ Dispose(true);
+ GC.SuppressFinalize(this);
}
- private void UploadCloudFile(string fileName, long fileSize, string path,string hash)
+ protected virtual void Dispose(bool disposing)
{
- Contract.Requires(!Path.IsPathRooted(fileName));
-
- StatusKeeper.SetNetworkState(fileName,NetworkState.Uploading);
-
- //Even if GetObjectInfo times out, we can proceed with the upload
- var info = CloudClient.GetObjectInfo("PITHOS", fileName);
- Task.Factory.StartNew(() =>
+ if (disposing)
{
- if (hash != info.Hash)
- {
- Task.Factory.StartNew(() =>
- this.StatusKeeper.SetFileOverlayStatus(path, FileOverlayStatus.Synch))
- .ContinueWith(t =>
- CloudClient.PutObject("PITHOS", fileName, path, hash));
- }
- else
- {
- this.StatusKeeper.StoreInfo(path,info);
- }
+ Stop();
}
- )
- .ContinueWith(t =>
- this.StatusKeeper.SetFileState(path, FileStatus.Unchanged, FileOverlayStatus.Normal))
- .ContinueWith(t=>
- this.StatusKeeper.SetNetworkState(path,NetworkState.None))
- .Wait();
- Workflow.RaiseChangeNotification(path);
}
- private Dictionary<WatcherChangeTypes, FileStatus> _statusDict = new Dictionary<WatcherChangeTypes, FileStatus>
- {
- {WatcherChangeTypes.Created,FileStatus.Created},
- {WatcherChangeTypes.Changed,FileStatus.Modified},
- {WatcherChangeTypes.Deleted,FileStatus.Deleted},
- {WatcherChangeTypes.Renamed,FileStatus.Renamed}
- };
- private WorkflowState UpdateFileStatus(WorkflowState state)
+ public void MoveFileStates(string oldPath, string newPath)
{
- 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 (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.Status = Workflow.SetFileStatus(path, status);
- return state;
+ StatusKeeper.ChangeRoots(oldPath, newPath);
}
- private WorkflowState UpdateOverlayStatus(WorkflowState state)
- {
- if (state.Skip)
- return state;
-
- switch (state.Status)
- {
- 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;
- }
+ public void SetSelectivePaths(Uri[] uris,Uri[] added, Uri[] removed)
+ {
+ //Convert the uris to paths
+ var selectivePaths = UrisToFilePaths(uris);
+
+ FileAgent.SelectivePaths=selectivePaths;
+ PollAgent.SetSyncUris(uris);
+
+ var removedPaths = UrisToFilePaths(removed);
+ UnversionSelectivePaths(removedPaths);
- if (state.Status==FileStatus.Deleted)
- Workflow.RaiseChangeNotification(Path.GetDirectoryName(state.Path));
- else
- Workflow.RaiseChangeNotification(state.Path);
- return state;
}
-
- private WorkflowState UpdateFileChecksum(WorkflowState state)
+ /// <summary>
+ /// Mark all unselected paths as Unversioned
+ /// </summary>
+ /// <param name="removed"></param>
+ private void UnversionSelectivePaths(List<string> removed)
{
- 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 (removed == null)
+ return;
- state.Hash = hash;
- return state;
+ //Ensure we remove any file state below the deleted folders
+ FileState.UnversionPaths(removed);
}
-
- private FileSystemEventArgs CalculateSignature(FileSystemEventArgs arg)
+ /// <summary>
+ /// Return a list of absolute filepaths from a list of Uris
+ /// </summary>
+ /// <param name="uris"></param>
+ /// <returns></returns>
+ private List<string> UrisToFilePaths(IEnumerable<Uri> uris)
{
- Debug.WriteLine(String.Format("{0} {1} {2}", arg.ChangeType, arg.Name, arg.FullPath), "INFO");
- return arg;
- }
+ if (uris == null)
+ return new List<string>();
- void OnFileEvent(object sender, FileSystemEventArgs e)
- {
- _fileEvents.Add(new WorkflowState{Path=e.FullPath,FileName = e.Name,TriggeringChange=e.ChangeType});
+ return (from uri in uris
+ let relativePath = _accountInfo.StorageUri
+ .MakeRelativeUri(uri)
+ .RelativeUriToFilePath()
+ //Trim the account name
+ select Path.Combine(RootPath, relativePath.After(_accountInfo.UserName + '\\'))).ToList();
}
- void OnRenameEvent(object sender, RenamedEventArgs e)
- {
- _fileEvents.Add(new WorkflowState { OldPath=e.OldFullPath,OldFileName=e.OldName,
- Path = e.FullPath, FileName = e.Name, TriggeringChange = e.ChangeType });
- }
- public void Stop()
+ public ObjectInfo GetObjectInfo(string filePath)
{
- if (_watcher != null)
+ 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
{
- _watcher.Changed -= OnFileEvent;
- _watcher.Created -= OnFileEvent;
- _watcher.Deleted -= OnFileEvent;
- _watcher.Renamed -= OnRenameEvent;
- _watcher.Dispose();
+ accountName = UserName;
+ container = parts[0];
+ relativeUrl = String.Join("/", parts.Splice(1));
}
- _watcher = null;
- _fileEvents.CompleteAdding();
- if (timer != null)
- timer.Dispose();
- timer = null;
- StopStatusService();
- }
-
-
- ~PithosMonitor()
- {
- Dispose(false);
+
+ var client = new CloudFilesClient(accountInfo);
+ var objectInfo=client.GetObjectInfo(accountName, container, relativeUrl);
+ return objectInfo;
}
-
- public void Dispose()
+
+ public Task<ContainerInfo> GetContainerInfo(string filePath)
{
- Dispose(true);
- GC.SuppressFinalize(this);
- }
+ if (String.IsNullOrWhiteSpace(filePath))
+ throw new ArgumentNullException("filePath");
+ Contract.EndContractBlock();
- protected virtual void Dispose(bool disposing)
- {
- if (disposing)
+ 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
{
- Stop();
+ accountName = UserName;
+ container = parts[0];
}
- }
-
+ return Task.Factory.StartNew(() =>
+ {
+ var client = new CloudFilesClient(accountInfo);
+ var containerInfo = client.GetContainerInfo(accountName, container);
+ return containerInfo;
+ });
+ }
}
}