root / trunk / Pithos.Core / Agents / CloudTransferAction.cs @ 4f6d51d4
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using System; |
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using System.Diagnostics.Contracts; |
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using System.IO; |
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using System.Threading; |
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using Pithos.Interfaces; |
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using Pithos.Network; |
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|
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namespace Pithos.Core.Agents |
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{ |
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public enum CloudActionType |
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{ |
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MustSynch, |
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UploadUnconditional, |
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DownloadUnconditional, |
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DeleteLocal, |
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DeleteCloud, |
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RenameCloud |
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} |
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|
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public class CloudAction |
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{ |
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public AccountInfo AccountInfo { get; set; } |
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public CloudActionType Action { get; set; } |
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public FileSystemInfo LocalFile { get; set; } |
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public ObjectInfo CloudFile { get; set; } |
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public FileState FileState { get; set; } |
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public string Container { get; set; } |
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|
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|
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public Lazy<string> LocalHash { get; protected set; } |
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private Lazy<string> _topHash; |
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public Lazy<string> TopHash |
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{ |
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get { return _topHash; } |
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set { _topHash = value; } |
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} |
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|
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|
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[ContractInvariantMethod] |
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private void Invariants() |
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{ |
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Contract.Invariant(AccountInfo!=null); |
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} |
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|
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protected CloudAction(AccountInfo accountInfo,CloudActionType action) |
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{ |
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if (accountInfo==null) |
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throw new ArgumentNullException("accountInfo"); |
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Contract.EndContractBlock(); |
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|
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Action = action; |
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AccountInfo = accountInfo; |
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} |
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|
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public CloudAction(AccountInfo accountInfo, CloudActionType action, FileSystemInfo localFile, ObjectInfo cloudFile, FileState state, int blockSize, string algorithm) |
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: this(accountInfo,action) |
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{ |
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LocalFile = localFile; |
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CloudFile = cloudFile; |
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FileState = state; |
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if (LocalFile != null) |
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{ |
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|
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LocalHash = new Lazy<string>(() => LocalFile.CalculateHash(blockSize,algorithm), |
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LazyThreadSafetyMode.ExecutionAndPublication); |
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} |
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} |
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|
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//Calculate the download path for the cloud file |
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public string GetDownloadPath() |
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{ |
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if (CloudFile == null) |
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return String.Empty; |
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var filePath = CloudFile.RelativeUrlToFilePath(AccountInfo.UserName); |
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return Path.Combine(AccountInfo.AccountPath, filePath); |
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} |
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|
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public override string ToString() |
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{ |
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return String.Format("{0}:{1}->{2}", this.Action, this.LocalFile.FullName, this.CloudFile.Name); |
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} |
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} |
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|
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public class CloudDownloadAction:CloudAction |
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{ |
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public CloudDownloadAction(AccountInfo accountInfo, ObjectInfo cloudFile) |
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:base(accountInfo,CloudActionType.DownloadUnconditional) |
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{ |
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if (String.IsNullOrWhiteSpace(cloudFile.Container)) |
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throw new ArgumentException("CloudFile.Container","cloudFile"); |
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Contract.EndContractBlock(); |
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|
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CloudFile = cloudFile; |
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} |
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|
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[ContractInvariantMethod] |
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private void Invariants() |
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{ |
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Contract.Invariant(!String.IsNullOrWhiteSpace(CloudFile.Container)); |
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} |
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|
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public override string ToString() |
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{ |
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return String.Format("{0}: _ <- {1}", this.Action, this.CloudFile.Name); |
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} |
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|
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} |
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public class CloudDeleteAction:CloudAction |
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{ |
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public CloudDeleteAction(AccountInfo accountInfo,FileSystemInfo fileInfo, FileState fileState) |
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: this(accountInfo,new ObjectInfo(accountInfo.AccountPath,accountInfo.UserName,fileInfo),fileState) |
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{ |
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} |
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|
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public CloudDeleteAction(AccountInfo accountInfo, ObjectInfo cloudFile, FileState fileState) |
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: base(accountInfo,CloudActionType.DeleteCloud) |
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{ |
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CloudFile = cloudFile; |
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FileState = fileState; |
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} |
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|
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public CloudDeleteAction(CloudAction action) |
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: this(action.AccountInfo,action.CloudFile,action.FileState) |
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{} |
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|
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[ContractInvariantMethod] |
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private void Invariants() |
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{ |
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Contract.Invariant(!String.IsNullOrWhiteSpace(CloudFile.Container)); |
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} |
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|
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public override string ToString() |
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{ |
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return String.Format("{0}: _ ->{1}", this.Action, this.CloudFile.Name); |
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} |
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|
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} |
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|
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public class CloudUploadAction:CloudAction |
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{ |
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public CloudUploadAction(AccountInfo accountInfo, FileSystemInfo fileInfo, FileState state, int blockSize, string algorithm) |
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: base(accountInfo, CloudActionType.UploadUnconditional, fileInfo, |
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new ObjectInfo(accountInfo.AccountPath, accountInfo.UserName,fileInfo), state, blockSize, algorithm) |
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{ |
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} |
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|
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[ContractInvariantMethod] |
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private void Invariants() |
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{ |
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Contract.Invariant(!String.IsNullOrWhiteSpace(CloudFile.Container)); |
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} |
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|
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} |
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|
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public class CloudMoveAction:CloudAction |
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{ |
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public ObjectInfo OldCloudFile { get; set; } |
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|
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public FileSystemInfo OldLocalFile { get; set; } |
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public CloudMoveAction(AccountInfo accountInfo, CloudActionType action, FileSystemInfo oldFile, FileSystemInfo newFile) |
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:base(accountInfo,action) |
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{ |
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LocalFile = newFile; |
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CloudFile = new ObjectInfo(accountInfo.AccountPath, accountInfo.UserName, newFile); |
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OldLocalFile = oldFile; |
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OldCloudFile = new ObjectInfo(accountInfo.AccountPath, accountInfo.UserName, oldFile); |
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//This is a rename operation, a hash will not be used |
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LocalHash = new Lazy<string>(() => String.Empty, LazyThreadSafetyMode.ExecutionAndPublication); |
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} |
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|
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public override string ToString() |
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{ |
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return String.Format("{0}:{1}->{2}", this.Action, OldCloudFile.Name, CloudFile.Name); |
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} |
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|
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} |
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} |