/// <summary>
/// Retrieves the storage location from the database for the specified study. Checks if the filesystem is writable.
/// </summary>
/// <param name="location">The output storage location</param>
/// <param name="partitionKey">The primark key of the ServerPartition table.</param>
/// <param name="studyInstanceUid">The Study Instance UID of the study</param>
/// <param name="cache">Should the study location be cached?</param>
/// <param name="restore">If nearline, should the study be restored?</param>
/// <returns></returns>
public void GetWritableStudyStorageLocation(ServerEntityKey partitionKey, string studyInstanceUid, StudyRestore restore, StudyCache cache, out StudyStorageLocation location)
{
using (var context = new ServerExecutionContext())
{
string reason;
if (cache == StudyCache.True)
{
location = _storageLocationCache.GetCachedStudy(partitionKey, studyInstanceUid);
if (location != null)
{
if (CheckFilesystemWriteable(location.FilesystemKey, out reason))
{
return;
}
}
}
else
{
location = null;
}
IQueryStudyStorageLocation procedure = context.ReadContext.GetBroker <IQueryStudyStorageLocation>();
StudyStorageLocationQueryParameters parms = new StudyStorageLocationQueryParameters
{
ServerPartitionKey = partitionKey,
StudyInstanceUid = studyInstanceUid
};
IList <StudyStorageLocation> locationList = procedure.Find(parms);
bool found = false;
FilesystemNotWritableException x = new FilesystemNotWritableException();
foreach (StudyStorageLocation studyLocation in locationList)
{
if (CheckFilesystemWriteable(studyLocation.FilesystemKey, out reason))
{
location = studyLocation;
if (cache == StudyCache.True)
{
_storageLocationCache.AddCachedStudy(location);
}
return;
}
found = true;
x.Reason = reason;
x.Path = studyLocation.StudyFolder;
}
if (found)
{
throw x;
}
CheckForStudyRestore(context.ReadContext, partitionKey, studyInstanceUid, restore);
}
}
/// <summary>
/// Retrieves the storage location from the database for the specified study. Checks if the filesystem is readable.
/// </summary>
/// <param name="partitionKey"></param>
/// <param name="studyInstanceUid"></param>
/// <param name="restore"></param>
/// <param name="cache"></param>
/// <param name="location"></param>
public void GetReadableStudyStorageLocation(ServerEntityKey partitionKey, string studyInstanceUid, StudyRestore restore, StudyCache cache,
out StudyStorageLocation location)
{
using (ServerExecutionContext context = new ServerExecutionContext())
{
// Get the cached value, if it exists, otherwise fall down and recheck
// and handle any nearline issues below
location = _storageLocationCache.GetCachedStudy(partitionKey, studyInstanceUid);
if (location != null)
{
string reason;
if (CheckFilesystemReadable(location.FilesystemKey, out reason))
{
return;
}
}
IQueryStudyStorageLocation procedure = context.ReadContext.GetBroker <IQueryStudyStorageLocation>();
StudyStorageLocationQueryParameters parms = new StudyStorageLocationQueryParameters
{
StudyInstanceUid = studyInstanceUid,
ServerPartitionKey = partitionKey
};
IList <StudyStorageLocation> locationList = procedure.Find(parms);
bool foundStudy = false;
FilesystemNotReadableException x = new FilesystemNotReadableException();
foreach (StudyStorageLocation studyLocation in locationList)
{
string reason;
if (CheckFilesystemReadable(studyLocation.FilesystemKey, out reason))
{
location = studyLocation;
if (cache == StudyCache.True)
{
_storageLocationCache.AddCachedStudy(location);
}
return;
}
foundStudy = true;
x.Path = studyLocation.FilesystemPath;
x.Reason = reason;
}
if (foundStudy)
{
throw x;
}
CheckForStudyRestore(context.ReadContext, partitionKey, studyInstanceUid, restore);
}
}
