public void SetupWriters(Guid[] includedWriters, Guid[] excludedWriters)
{
if (includedWriters != null && includedWriters.Length > 0)
{
_vssBackupComponents.EnableWriterClasses(includedWriters);
}
if (excludedWriters != null && excludedWriters.Length > 0)
{
_vssBackupComponents.DisableWriterClasses(excludedWriters);
}
try
{
_vssBackupComponents.GatherWriterMetadata();
}
finally
{
_vssBackupComponents.FreeWriterMetadata();
}
if (includedWriters == null)
{
return;
}
// check if writers got enabled
foreach (var writerGUID in includedWriters)
{
if (!_vssBackupComponents.WriterMetadata.Any(o => o.WriterId.Equals(writerGUID)))
{
throw new Exception(string.Format("Writer with GUID {0} was not added to VSS writer set.", writerGUID.ToString()));
}
}
}
/// <summary>
/// Constructs a new backup snapshot, using all the required disks
/// </summary>
/// <param name="sourcepaths">The folders that are about to be backed up</param>
/// <param name="options">A set of commandline options</param>
public WindowsSnapshot(string[] sourcepaths, Dictionary <string, string> options)
{
try
{
//Substitute for calling VssUtils.LoadImplementation(), as we have the dlls outside the GAC
string alphadir = Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "alphavss");
string alphadll = System.IO.Path.Combine(alphadir, VssUtils.GetPlatformSpecificAssemblyShortName() + ".dll");
IVssImplementation vss = (IVssImplementation)System.Reflection.Assembly.LoadFile(alphadll).CreateInstance("Alphaleonis.Win32.Vss.VssImplementation");
List <Guid> excludedWriters = new List <Guid>();
if (options.ContainsKey("vss-exclude-writers"))
{
foreach (string s in options["vss-exclude-writers"].Split(';'))
{
if (!string.IsNullOrEmpty(s) && s.Trim().Length > 0)
{
excludedWriters.Add(new Guid(s));
}
}
}
//Check if we should map any drives
bool useSubst = Utility.Utility.ParseBoolOption(options, "vss-use-mapping");
//Prepare the backup
m_backup = vss.CreateVssBackupComponents();
m_backup.InitializeForBackup(null);
if (excludedWriters.Count > 0)
{
m_backup.DisableWriterClasses(excludedWriters.ToArray());
}
m_backup.StartSnapshotSet();
m_sourcepaths = new string[sourcepaths.Length];
for (int i = 0; i < m_sourcepaths.Length; i++)
{
m_sourcepaths[i] = System.IO.Directory.Exists(sourcepaths[i]) ? Utility.Utility.AppendDirSeparator(sourcepaths[i]) : sourcepaths[i];
}
try
{
//Gather information on all Vss writers
m_backup.GatherWriterMetadata();
m_backup.FreeWriterMetadata();
}
catch
{
try { m_backup.FreeWriterMetadata(); }
catch { }
throw;
}
//Figure out which volumes are in the set
m_volumes = new Dictionary <string, Guid>(StringComparer.InvariantCultureIgnoreCase);
foreach (string s in m_sourcepaths)
{
string drive = Alphaleonis.Win32.Filesystem.Path.GetPathRoot(s);
if (!m_volumes.ContainsKey(drive))
{
if (!m_backup.IsVolumeSupported(drive))
{
throw new VssVolumeNotSupportedException(drive);
}
m_volumes.Add(drive, m_backup.AddToSnapshotSet(drive));
}
}
//Signal that we want to do a backup
m_backup.SetBackupState(false, true, VssBackupType.Full, false);
//Make all writers aware that we are going to do the backup
m_backup.PrepareForBackup();
//Create the shadow volumes
m_backup.DoSnapshotSet();
//Make a little lookup table for faster translation
m_volumeMap = new Dictionary <string, string>(StringComparer.InvariantCultureIgnoreCase);
foreach (KeyValuePair <string, Guid> kvp in m_volumes)
{
m_volumeMap.Add(kvp.Key, m_backup.GetSnapshotProperties(kvp.Value).SnapshotDeviceObject);
}
//If we should map the drives, we do that now and update the volumeMap
if (useSubst)
{
m_mappedDrives = new List <DefineDosDevice>();
foreach (string k in new List <string>(m_volumeMap.Keys))
{
try
{
DefineDosDevice d;
m_mappedDrives.Add(d = new DefineDosDevice(m_volumeMap[k]));
m_volumeMap[k] = Utility.Utility.AppendDirSeparator(d.Drive);
}
catch { }
}
}
}
catch
{
//In case we fail in the constructor, we do not want a snapshot to be active
try { Dispose(); }
catch { }
throw;
}
}
/// <summary>
/// Constructs a new backup snapshot, using all the required disks
/// </summary>
/// <param name="sourcepaths">The folders that are about to be backed up</param>
/// <param name="options">A set of commandline options</param>
public WindowsSnapshot(string[] sourcepaths, Dictionary <string, string> options)
{
try
{
//Substitute for calling VssUtils.LoadImplementation(), as we have the dlls outside the GAC
string alphadir = Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "alphavss");
string alphadll = System.IO.Path.Combine(alphadir, VssUtils.GetPlatformSpecificAssemblyShortName() + ".dll");
IVssImplementation vss = (IVssImplementation)System.Reflection.Assembly.LoadFile(alphadll).CreateInstance("Alphaleonis.Win32.Vss.VssImplementation");
var excludedWriters = new Guid[0];
if (options.ContainsKey("vss-exclude-writers"))
{
excludedWriters = options["vss-exclude-writers"].Split(';').Where(x => !string.IsNullOrWhiteSpace(x) && x.Trim().Length > 0).Select(x => new Guid(x)).ToArray();
}
//Check if we should map any drives
bool useSubst = Utility.Utility.ParseBoolOption(options, "vss-use-mapping");
//Prepare the backup
m_backup = vss.CreateVssBackupComponents();
m_backup.InitializeForBackup(null);
m_backup.SetContext(VssSnapshotContext.Backup);
m_backup.SetBackupState(false, true, VssBackupType.Full, false);
if (excludedWriters.Length > 0)
{
m_backup.DisableWriterClasses(excludedWriters.ToArray());
}
m_sourcepaths = sourcepaths.Select(x => Directory.Exists(x) ? Utility.Utility.AppendDirSeparator(x) : x).ToList();
List <string> hypervPaths;
try
{
m_backup.GatherWriterMetadata();
hypervPaths = PrepareHyperVBackup(options, m_backup.WriterMetadata.FirstOrDefault(o => o.WriterId.Equals(HyperVWriterGuid)));
}
finally
{
m_backup.FreeWriterMetadata();
}
if (hypervPaths != null)
{
m_sourcepaths.AddRange(hypervPaths);
}
//Sanity check for duplicate files/folders
var pathDuplicates = m_sourcepaths.GroupBy(x => x, Utility.Utility.ClientFilenameStringComparer)
.Where(g => g.Count() > 1).Select(y => y.Key).ToList();
foreach (var pathDuplicate in pathDuplicates)
{
Logging.Log.WriteMessage(string.Format("Removing duplicate source: {0}", pathDuplicate), Logging.LogMessageType.Information);
}
if (pathDuplicates.Count > 0)
{
m_sourcepaths = m_sourcepaths.Distinct(Utility.Utility.ClientFilenameStringComparer).OrderBy(a => a).ToList();
}
//Sanity check for multiple inclusions of the same files/folders
var pathIncludedPaths = m_sourcepaths.Where(x => m_sourcepaths.Where(y => y != x).Any(z => x.StartsWith(z, Utility.Utility.ClientFilenameStringComparision))).ToList();
foreach (var pathIncluded in pathIncludedPaths)
{
Logging.Log.WriteMessage(string.Format("Removing already included source: {0}", pathIncluded), Logging.LogMessageType.Information);
}
if (pathIncludedPaths.Count > 0)
{
m_sourcepaths = m_sourcepaths.Except(pathIncludedPaths, Utility.Utility.ClientFilenameStringComparer).ToList();
}
m_backup.StartSnapshotSet();
//Figure out which volumes are in the set
m_volumes = new Dictionary <string, Guid>(StringComparer.InvariantCultureIgnoreCase);
foreach (string s in m_sourcepaths)
{
string drive = Alphaleonis.Win32.Filesystem.Path.GetPathRoot(s);
if (!m_volumes.ContainsKey(drive))
{
if (!m_backup.IsVolumeSupported(drive))
{
throw new VssVolumeNotSupportedException(drive);
}
m_volumes.Add(drive, m_backup.AddToSnapshotSet(drive));
}
}
//Make all writers aware that we are going to do the backup
m_backup.PrepareForBackup();
//Create the shadow volumes
m_backup.DoSnapshotSet();
//Make a little lookup table for faster translation
m_volumeMap = new Dictionary <string, string>(StringComparer.InvariantCultureIgnoreCase);
foreach (KeyValuePair <string, Guid> kvp in m_volumes)
{
m_volumeMap.Add(kvp.Key, m_backup.GetSnapshotProperties(kvp.Value).SnapshotDeviceObject);
}
//If we should map the drives, we do that now and update the volumeMap
if (useSubst)
{
m_mappedDrives = new List <DefineDosDevice>();
foreach (string k in new List <string>(m_volumeMap.Keys))
{
try
{
DefineDosDevice d;
m_mappedDrives.Add(d = new DefineDosDevice(m_volumeMap[k]));
m_volumeMap[k] = Utility.Utility.AppendDirSeparator(d.Drive);
}
catch { }
}
}
}
catch
{
//In case we fail in the constructor, we do not want a snapshot to be active
try { Dispose(); }
catch { }
throw;
}
}
/// <summary>
/// Constructs a new backup snapshot, using all the required disks
/// </summary>
/// <param name="sources">Sources to determine which volumes to include in snapshot</param>
/// <param name="options">A set of commandline options</param>
public WindowsSnapshot(IEnumerable <string> sources, IDictionary <string, string> options)
{
try
{
// Substitute for calling VssUtils.LoadImplementation(), as we have the dlls outside the GAC
var assemblyLocation = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
if (assemblyLocation == null)
{
throw new InvalidOperationException();
}
var alphadir = Path.Combine(assemblyLocation, "alphavss");
var alphadll = Path.Combine(alphadir, VssUtils.GetPlatformSpecificAssemblyShortName() + ".dll");
var vss = (IVssImplementation)System.Reflection.Assembly.LoadFile(alphadll).CreateInstance("Alphaleonis.Win32.Vss.VssImplementation");
if (vss == null)
{
throw new InvalidOperationException();
}
var excludedWriters = new Guid[0];
if (options.ContainsKey("vss-exclude-writers"))
{
excludedWriters = options["vss-exclude-writers"].Split(';').Where(x => !string.IsNullOrWhiteSpace(x) && x.Trim().Length > 0).Select(x => new Guid(x)).ToArray();
}
//Check if we should map any drives
var useSubst = Utility.Utility.ParseBoolOption(options, "vss-use-mapping");
//Prepare the backup
m_backup = vss.CreateVssBackupComponents();
m_backup.InitializeForBackup(null);
m_backup.SetContext(VssSnapshotContext.Backup);
m_backup.SetBackupState(false, true, VssBackupType.Full, false);
if (excludedWriters.Length > 0)
{
m_backup.DisableWriterClasses(excludedWriters.ToArray());
}
try
{
m_backup.GatherWriterMetadata();
}
finally
{
m_backup.FreeWriterMetadata();
}
m_backup.StartSnapshotSet();
//Figure out which volumes are in the set
m_volumes = new Dictionary <string, Guid>(StringComparer.OrdinalIgnoreCase);
foreach (var s in sources)
{
var drive = AlphaFS.Path.GetPathRoot(s);
if (!m_volumes.ContainsKey(drive))
{
//TODO: that seems a bit harsh... we could fall-back to not using VSS for that volume only
if (!m_backup.IsVolumeSupported(drive))
{
throw new VssVolumeNotSupportedException(drive);
}
m_volumes.Add(drive, m_backup.AddToSnapshotSet(drive));
}
}
//Make all writers aware that we are going to do the backup
m_backup.PrepareForBackup();
//Create the shadow volumes
m_backup.DoSnapshotSet();
//Make a little lookup table for faster translation
m_volumeMap = new Dictionary <string, string>(StringComparer.OrdinalIgnoreCase);
foreach (var kvp in m_volumes)
{
m_volumeMap.Add(kvp.Key, m_backup.GetSnapshotProperties(kvp.Value).SnapshotDeviceObject);
}
m_volumeReverseMap = m_volumeMap.ToDictionary(x => x.Value, x => x.Key);
//If we should map the drives, we do that now and update the volumeMap
if (useSubst)
{
m_mappedDrives = new List <DefineDosDevice>();
foreach (var k in new List <string>(m_volumeMap.Keys))
{
try
{
DefineDosDevice d;
m_mappedDrives.Add(d = new DefineDosDevice(m_volumeMap[k]));
m_volumeMap[k] = Utility.Utility.AppendDirSeparator(d.Drive);
}
catch (Exception ex)
{
Logging.Log.WriteVerboseMessage(LOGTAG, "SubstMappingfailed", ex, "Failed to map VSS path {0} to drive", k);
}
}
}
}
catch
{
//In case we fail in the constructor, we do not want a snapshot to be active
try
{
Dispose();
}
catch (Exception ex)
{
Logging.Log.WriteVerboseMessage(LOGTAG, "VSSCleanupOnError", ex, "Failed during VSS error cleanup");
}
throw;
}
}
/// <summary>
/// Constructs a new backup snapshot, using all the required disks
/// </summary>
/// <param name="sourcepaths">The folders that are about to be backed up</param>
/// <param name="options">A set of commandline options</param>
public WindowsSnapshot(string[] sourcepaths, Dictionary<string, string> options)
{
try
{
//Substitute for calling VssUtils.LoadImplementation(), as we have the dlls outside the GAC
string alphadir = Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "alphavss");
string alphadll = System.IO.Path.Combine(alphadir, VssUtils.GetPlatformSpecificAssemblyName().Name + ".dll");
IVssImplementation vss = (IVssImplementation)System.Reflection.Assembly.LoadFile(alphadll).CreateInstance("Alphaleonis.Win32.Vss.VssImplementation");
List<Guid> excludedWriters = new List<Guid>();
if (options.ContainsKey("vss-exclude-writers"))
{
foreach (string s in options["vss-exclude-writers"].Split(';'))
if (!string.IsNullOrEmpty(s) && s.Trim().Length > 0)
excludedWriters.Add(new Guid(s));
}
//Check if we should map any drives
bool useSubst = Utility.Utility.ParseBoolOption(options, "vss-use-mapping");
//Prepare the backup
m_backup = vss.CreateVssBackupComponents();
m_backup.InitializeForBackup(null);
if (excludedWriters.Count > 0)
m_backup.DisableWriterClasses(excludedWriters.ToArray());
m_snapshotId = m_backup.StartSnapshotSet();
m_sourcepaths = new string[sourcepaths.Length];
for(int i = 0; i < m_sourcepaths.Length; i++)
m_sourcepaths[i] = Utility.Utility.AppendDirSeparator(sourcepaths[i]);
try
{
//Gather information on all Vss writers
using (IVssAsync async = m_backup.GatherWriterMetadata())
async.Wait();
m_backup.FreeWriterMetadata();
}
catch
{
try { m_backup.FreeWriterMetadata(); }
catch { }
throw;
}
//Figure out which volumes are in the set
m_volumes = new Dictionary<string, Guid>(StringComparer.InvariantCultureIgnoreCase);
foreach (string s in m_sourcepaths)
{
string drive = Alphaleonis.Win32.Filesystem.Path.GetPathRoot(s);
if (!m_volumes.ContainsKey(drive))
{
if (!m_backup.IsVolumeSupported(drive))
throw new VssVolumeNotSupportedException(drive);
m_volumes.Add(drive, m_backup.AddToSnapshotSet(drive));
}
}
//Signal that we want to do a backup
m_backup.SetBackupState(false, true, VssBackupType.Full, false);
//Make all writers aware that we are going to do the backup
using (IVssAsync async = m_backup.PrepareForBackup())
async.Wait();
//Create the shadow volumes
using (IVssAsync async = m_backup.DoSnapshotSet())
async.Wait();
//Make a little lookup table for faster translation
m_volumeMap = new Dictionary<string, string>(StringComparer.InvariantCultureIgnoreCase);
foreach(KeyValuePair<string, Guid> kvp in m_volumes)
m_volumeMap.Add(kvp.Key, m_backup.GetSnapshotProperties(kvp.Value).SnapshotDeviceObject);
//If we should map the drives, we do that now and update the volumeMap
if (useSubst)
{
m_mappedDrives = new List<DefineDosDevice>();
foreach (string k in new List<string>(m_volumeMap.Keys))
{
try
{
DefineDosDevice d;
m_mappedDrives.Add(d = new DefineDosDevice(m_volumeMap[k]));
m_volumeMap[k] = Utility.Utility.AppendDirSeparator(d.Drive);
}
catch { }
}
}
}
catch
{
//In case we fail in the constructor, we do not want a snapshot to be active
try { Dispose(); }
catch { }
throw;
}
}
public void SetItems(List <string> spoPaths)
{
foreach (IVssExamineWriterMetadata writer in backup.WriterMetadata)
{
foreach (string spo in spoPaths)
{
try{
Logger.Append(Severity.TRIVIA, "Searching writer and/or component matching " + spo + ", current writer=" + writer.InstanceName);
int index = spo.IndexOf(writer.WriterName);
if (index < 0 && spo != "*")
{
continue;
}
bool found = false;
// First we check that the writer's status is OK, else we don't add it to avoid failure of complete snapshot if it's not
bool writerOk = false;
foreach (VssWriterStatusInfo status in backup.WriterStatus)
{
if (status.Name == writer.WriterName)
{
if (status.State == VssWriterState.Stable)
{
// if we get there it means that we are ready to add the wanted component to VSS set
writerOk = true;
Metadata.Metadata.Add(writer.WriterName, writer.SaveAsXml());
}
else
{
Logger.Append(Severity.ERROR, "***Cannot add writer " + status.Name + " to snapshot set,"
+ " status=" + status.State.ToString() + ". Backup data managed by this writer may not be consistent. Restore will be hazardous.");
if (OperatingSystemInfo.IsAtLeast(OSVersionName.WindowsServer2003))
{
backup.DisableWriterClasses(new Guid[] { writer.WriterId });
}
}
}
}
bool addAllComponents = false;
if (spo.Length == index + writer.WriterName.Length || spo == "*" || spo == "" + writer.WriterName + @"\*")
{
addAllComponents = true;
}
// exclude items indicated by writer
foreach (VssWMFileDescription file in writer.ExcludeFiles)
{
BasePath bp = new BasePath();
bp.Type = "FS";
bp.Path = file.Path;
bp.ExcludePolicy.Add(file.FileSpecification);
//bp.ExcludedPaths = writer.E
bp.Recursive = file.IsRecursive;
BasePaths.Add(bp);
}
foreach (IVssWMComponent component in writer.Components)
{
found = false;
Console.WriteLine("***createvolsnapshot : current component is :" + component.LogicalPath + @"\" + component.ComponentName);
if ((!addAllComponents) && spo.IndexOf(component.LogicalPath + @"\" + component.ComponentName) < 0)
{
continue;
}
Logger.Append(Severity.TRIVIA, "***Asked to recursively select all '" + writer.WriterName + "' writer's components");
if (OperatingSystemInfo.IsAtLeast(OSVersionName.WindowsServer2003))
{
foreach (VssWMDependency dep in component.Dependencies)
{
Logger.Append(Severity.TRIVIA, "***Component " + component.ComponentName + " depends on component " + dep.ComponentName + " TODO TODO TODO add it automatically");
}
}
if (component.Selectable)
{
backup.AddComponent(writer.InstanceId, writer.WriterId, component.Type, component.LogicalPath, component.ComponentName);
}
//Logger.Append (Severity.INFO, "***Added writer '"+writer.WriterName+"' component "+component.ComponentName);
this.ExplodedComponents.Add(writer.WriterName + @"\" + component.LogicalPath + @"\" + component.ComponentName);
found = true;
// Second we need to find every drive containing files necessary for writer's backup
// and add them to drives list, in case they weren't explicitely selected as part of backuppaths
List <VssWMFileDescription> componentFiles = new List <VssWMFileDescription>();
componentFiles.AddRange(component.Files);
componentFiles.AddRange(component.DatabaseFiles);
componentFiles.AddRange(component.DatabaseLogFiles);
foreach (VssWMFileDescription file in componentFiles)
{
if (string.IsNullOrEmpty(file.Path))
{
continue;
}
//Console.WriteLine ("***component file path="+file.Path+", alt backuplocation="+file.AlternateLocation
// +", backuptypemask="+file.BackupTypeMask.ToString()+", spec="+file.FileSpecification+", recursive="+file.IsRecursive);
BasePath bp = new BasePath();
bp.Path = file.Path;
bp.Type = "FS"; //BasePath.PathType.FS;
bp.IncludePolicy.Add(file.FileSpecification);
bp.Recursive = file.IsRecursive;
BasePaths.Add(bp);
}
//backup.SetBackupSucceeded(writer.InstanceId, writer.WriterId, component.Type, component.LogicalPath, component.ComponentName, false);
//Logger.Append(Severity.TRIVIA, "Added writer/component "+spo);
//break;
}
//metadata.Metadata.Add(writer.SaveAsXml());
// Retrieve Backup Components Document
//Metadata.Metadata.Add("bcd", backup.SaveAsXml());
if (found == false)
{
Logger.Append(Severity.WARNING, "Could not find VSS component " + spo + " which was part of backup paths");
}
}
catch (Exception e) {
Console.WriteLine(" *** SetItems() : error " + e.Message);
}
}
}
//backup.BackupComplete();
backup.FreeWriterStatus();
backup.FreeWriterMetadata();
backup.AbortBackup();
backup.Dispose();
}
public ISnapshot[] CreateVolumeSnapShot(List <FileSystem> volumes, string[] spoPaths, SnapshotSupportedLevel level)
{
using (new Alphaleonis.Win32.Security.PrivilegeEnabler(Privilege.Backup, Privilege.Restore)){
//PrivilegesManager pm = new PrivilegesManager();
//pm.Grant();
VssBackupType vssLevel = VssBackupType.Full;
if (level == SnapshotSupportedLevel.Full)
{
vssLevel = VssBackupType.Full;
}
else if (level == SnapshotSupportedLevel.Incremental)
{
vssLevel = VssBackupType.Incremental;
}
else if (level == SnapshotSupportedLevel.Differential)
{
vssLevel = VssBackupType.Differential;
}
else if (level == SnapshotSupportedLevel.TransactionLog)
{
vssLevel = VssBackupType.Log;
}
ArrayList snapshots = new ArrayList();
Metadata = new SPOMetadata();
bool snapshotSuccedeed = false;
try{
IVssImplementation vss = VssUtils.LoadImplementation();
backup = vss.CreateVssBackupComponents();
Logger.Append(Severity.DEBUG, "0/6 Initializing Snapshot (" + ((spoPaths == null)? "NON-component mode" : "component mode") + ", level " + level + ")");
backup.InitializeForBackup(null);
if (spoPaths == null) // component-less snapshot set
{
backup.SetBackupState(false, true, VssBackupType.Full, false);
}
else
{
backup.SetBackupState(true, true, vssLevel, (vssLevel == VssBackupType.Full)?false:true);
}
if (OperatingSystemInfo.IsAtLeast(OSVersionName.WindowsServer2003))
{
// The only context supported on Windows XP is VssSnapshotContext.Backup
backup.SetContext(VssSnapshotContext.AppRollback /*|VssSnapshotContext.All*/);
}
Logger.Append(Severity.DEBUG, "1/6 Gathering writers metadata and status");
using (IVssAsync async = backup.GatherWriterMetadata()){
async.Wait();
async.Dispose();
}
// gather writers status before adding backup set components
using (IVssAsync async = backup.GatherWriterStatus()){
async.Wait();
async.Dispose();
}
Logger.Append(Severity.DEBUG, "2/6 Adding writers and components");
// Now we add the components (vss writers, writer paths/params) of this snapshot set
if (spoPaths != null)
{
foreach (IVssExamineWriterMetadata writer in backup.WriterMetadata)
{
foreach (string spo in spoPaths)
{
//Logger.Append (Severity.TRIVIA, "Searching writer and/or component matching "+spo);
int index = spo.IndexOf(writer.WriterName);
if (index < 0 && spo != "*")
{
continue;
}
bool found = false;
Logger.Append(Severity.TRIVIA, "Found matching writer " + writer.WriterName + ", instance name=" + writer.InstanceName);
// First we check that the writer's status is OK, else we don't add it to avoid failure of complete snapshot if it's not
bool writerOk = false;
foreach (VssWriterStatusInfo status in backup.WriterStatus)
{
if (status.Name == writer.WriterName)
{
Logger.Append(Severity.TRIVIA, "Checking required writer " + status.Name
+ ", status=" + status.State.ToString() + ", error state=" + status.Failure.ToString());
if (status.State == VssWriterState.Stable && status.Failure == VssError.Success) // if we get there it means that we are ready to add the wanted component to VSS set
{
writerOk = true;
}
else
{
Logger.Append(Severity.ERROR, "Cannot add writer " + status.Name + " to snapshot set,"
+ " status=" + status.State.ToString() + ". Backup data managed by this writer may not be consistent");
if (LogEvent != null)
{
LogEvent(this, new LogEventArgs(820, Severity.WARNING, status.Name + ", Status=" + status.State.ToString() + ", Failure=" + status.Failure.ToString()));
}
}
}
}
if (!writerOk)
{
if (OperatingSystemInfo.IsAtLeast(OSVersionName.WindowsServer2003))
{
backup.DisableWriterClasses(new Guid[] { writer.WriterId });
}
continue;
}
bool addAllComponents = false;
if (spo.Length == index + writer.WriterName.Length || spo == "*" || spo == "" + writer.WriterName + @"\*")
{
addAllComponents = true;
}
foreach (IVssWMComponent component in writer.Components)
{
found = false;
//Console.WriteLine("createvolsnapshot : current component is :"+component.LogicalPath+@"\"+component.ComponentName);
if ((!addAllComponents) && spo.IndexOf(component.LogicalPath + @"\" + component.ComponentName) < 0)
{
continue;
}
//Logger.Append (Severity.TRIVIA, "Asked to recursively select all '"+writer.WriterName+"' writer's components");
if (OperatingSystemInfo.IsAtLeast(OSVersionName.WindowsServer2003))
{
foreach (VssWMDependency dep in component.Dependencies)
{
Logger.Append(Severity.TRIVIA, "Component " + component.ComponentName + " depends on component " + dep.ComponentName);
}
}
if (component.Selectable)
{
backup.AddComponent(writer.InstanceId, writer.WriterId, component.Type, component.LogicalPath, component.ComponentName);
}
Logger.Append(Severity.INFO, "Added writer '" + writer.WriterName + "' component " + component.ComponentName);
found = true;
// Second we need to find every drive containing files necessary for writer's backup
// and add them to drives list, in case they weren't explicitely selected as part of backuppaths
List <VssWMFileDescription> componentFiles = new List <VssWMFileDescription>();
componentFiles.AddRange(component.Files);
componentFiles.AddRange(component.DatabaseFiles);
componentFiles.AddRange(component.DatabaseLogFiles);
foreach (VssWMFileDescription file in componentFiles)
{
if (string.IsNullOrEmpty(file.Path))
{
continue;
}
//Console.WriteLine ("component file path="+file.Path+", alt backuplocation="+file.AlternateLocation
// +", backuptypemask="+file.BackupTypeMask.ToString()+", spec="+file.FileSpecification+", recursive="+file.IsRecursive);
// TODO : Reuse GetInvolvedDrives (put it into VolumeManager class)
string drive = file.Path.Substring(0, 3).ToUpper();
if (drive.Contains(":") && drive.Contains("\\"))
{
var searchedVol = from FileSystem vol in volumes
where vol.MountPoint.Contains(drive)
select vol;
//if(!volumes.Contains(drive)){
if (searchedVol == null)
{
Logger.Append(Severity.INFO, "Select VSS component " + component.LogicalPath
+ @"\" + component.ComponentName + " requires snapshotting of drive " + drive + ", adding it to the list.");
volumes.Add(searchedVol.First());
}
break;
}
}
//Logger.Append(Severity.TRIVIA, "Added writer/component "+spo);
//break;
}
//metadata.Metadata.Add(writer.SaveAsXml());
Metadata.Metadata.Add(writer.WriterName, writer.SaveAsXml());
if (found == false)
{
Logger.Append(Severity.WARNING, "Could not find VSS component " + spo + " which was part of backup paths");
}
}
}
}
Logger.Append(Severity.DEBUG, "3/6 Preparing Snapshot ");
//backup.SetBackupState(false, true, VssBackupType.Full, false);
Guid snapID = backup.StartSnapshotSet();
//Guid volID = new Guid();
foreach (FileSystem volume in volumes)
{
VSSSnapshot snapshot = new VSSSnapshot();
snapshot.Type = this.Name;
Logger.Append(Severity.DEBUG, "Preparing Snapshot of " + volume.MountPoint);
if (volume.MountPoint != null && backup.IsVolumeSupported(volume.MountPoint))
{
snapshot.Id = backup.AddToSnapshotSet(volume.MountPoint);
snapshot.Path = volume.MountPoint;
}
else // return the fake provider to get at least a degraded backup, better than nothing
{
Logger.Append(Severity.WARNING, "Volume '" + volume.MountPoint + "' is not snapshottable (or null). Backup will be done without snapshot, risks of data inconsistancy.");
ISnapshotProvider fakeSnapProvider = SnapshotProvider.GetProvider("NONE");
List <FileSystem> fakeList = new List <FileSystem>();
fakeList.Add(volume);
snapshot = (VSSSnapshot)fakeSnapProvider.CreateVolumeSnapShot(fakeList, null, SnapshotSupportedLevel.Full)[0];
}
if (snapshot.Id == System.Guid.Empty)
{
Logger.Append(Severity.ERROR, "Unable to add drive " + volume.MountPoint + " to snapshot set (null guid)");
}
else
{
Logger.Append(Severity.TRIVIA, "Drive " + volume.MountPoint + " will be snapshotted to " + snapshot.Id);
}
snapshots.Add(snapshot);
}
Logger.Append(Severity.DEBUG, "4/6 Calling Prepare...");
using (IVssAsync async = backup.PrepareForBackup()){
async.Wait();
async.Dispose();
}
Logger.Append(Severity.DEBUG, "5/6 Snapshotting volumes");
using (IVssAsync async = backup.DoSnapshotSet()){
async.Wait();
async.Dispose();
}
//if(OperatingSystemInfo.IsAtLeast(OSVersionName.WindowsServer2003))
foreach (IVssExamineWriterMetadata w in backup.WriterMetadata)
{
foreach (IVssWMComponent comp in w.Components)
{
try{
backup.SetBackupSucceeded(w.InstanceId, w.WriterId, comp.Type, comp.LogicalPath, comp.ComponentName, true);
Logger.Append(Severity.TRIVIA, "Component " + comp.ComponentName + " has been notified about backup success.");
}
catch (Exception) {
//Logger.Append (Severity.WARNING, "Could not notify component "+comp.ComponentName+" about backup completion : "+se.Message);
}
}
}
//Node.Misc.VSSObjectHandle.StoreObject(backup);
try{
//on XP backupcomplete consider that we have done with the snapshot and releases it.
//if(OperatingSystemInfo.IsAtLeast(OSVersionName.WindowsServer2003)){
backup.BackupComplete();
Metadata.Metadata.Add("_bcd_", backup.SaveAsXml());
//}
}catch (Exception bce) {
Logger.Append(Severity.WARNING, "Error calling VSS BackupComplete() : " + bce.Message);
}
using (IVssAsync async = backup.GatherWriterStatus()){
async.Wait();
async.Dispose();
}
Logger.Append(Severity.DEBUG, "6/6 Successfully shapshotted volume(s) ");
foreach (ISnapshot sn in snapshots)
{
if (sn.Id == Guid.Empty)
{
continue;
}
sn.MountPoint = backup.GetSnapshotProperties(sn.Id).SnapshotDeviceObject;
sn.TimeStamp = Utilities.Utils.GetUtcUnixTime(backup.GetSnapshotProperties(sn.Id).CreationTimestamp.ToUniversalTime());
/*
* DirectoryInfo snapMountPoint = Directory.CreateDirectory( Path.Combine(Utilities.ConfigManager.GetValue("Backups.TempFolder"), "snapshot_"+sn.Id));
* Logger.Append(Severity.DEBUG, "Mounting shapshotted volume '"+sn.Name+"' to '"+snapMountPoint.FullName+"'");
* backup.ExposeSnapshot(sn.Id, null, VssVolumeSnapshotAttributes.ExposedLocally, snapMountPoint.FullName);
* //sn.Path = snapMountPoint.FullName+Path.DirectorySeparatorChar;
* //sn.Path = @"\\?\Volume{"+sn.Id+"}"+Path.DirectorySeparatorChar;*/
}
}
catch (Exception e) {
try{
//backup.BackupComplete();
backup.AbortBackup();
}
catch (Exception ae) {
Logger.Append(Severity.ERROR, "Error trying to cancel VSS snapshot set : " + ae.Message);
}
// TODO !! report snapshoty failure to hub task
Logger.Append(Severity.ERROR, "Error creating snapshot :'" + e.Message + " ---- " + e.StackTrace + "'. Backup will continue without snapshot. Backup of VSS components will fail. !TODO! report that to hub");
backup.Dispose();
throw new Exception(e.Message);
}
finally{
// TODO !!! reactivate dispose
//backup.Dispose();
//pm.Revoke();
}
return((ISnapshot[])snapshots.ToArray(typeof(ISnapshot)));
}
}