public StructureHelper RetrieveStructureTree(FileInfo sourceFile)
{
try
{
byte[] buffer;
using (FileStream fs = new FileStream(sourceFile.FullName, FileMode.Open, FileAccess.Read))
using (BinaryReader br = new BinaryReader(fs))
{
buffer = br.ReadBytes((int)sourceFile.Length);
}
byte[] decompressed = Decompress(buffer);
StructureHelper sh = JsonConvert.DeserializeObject <StructureHelper>(Encoding.UTF8.GetString(decompressed));
foreach (ProfileEntry item in sh.StructureEntries)
{
if (item.RecordNumber == 0)
{
continue;
}
foreach (ProfileEntry parentItem in sh.StructureEntries)
{
if (parentItem.RecordNumber == item.ParentRecordNumber)
{
item.Parent = parentItem;
break;
}
}
}
return(sh);
}
catch { return(null); }
}
protected bool PersistStructureTree(StructureHelper source, string fileName)
{
uint marker = 0;
foreach (ProfileEntry item in source.StructureEntries)
{
item.RecordNumber = marker++;
}
foreach (ProfileEntry item in source.StructureEntries)
{
ProfileEntry parent = item.Parent;
if (parent != null)
{
item.ParentRecordNumber = parent.RecordNumber;
}
}
if (!fileName.EndsWith(".gz"))
{
fileName += ".gz";
}
byte[] bytesToCompress = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(source));
using (FileStream fileToCompress = File.Create(fileName))
using (GZipStream compressionStream = new GZipStream(fileToCompress, CompressionMode.Compress))
{
compressionStream.Write(bytesToCompress, 0, bytesToCompress.Length);
}
return(true);
}
private void PopulateInfoTree(string structureName)
{
int structureSize = 0;
try
{
structureSize = (int)_profile.GetStructureSize(structureName);
if (structureSize == -1)
{
return;
}
}
catch (Exception)
{
return;
}
_profileEntries.Clear();
// first let's see if it already exists
FileInfo cachedFile = new FileInfo(_dataProvider.CacheFolder + "\\structure_" + structureName + ".gz");
if (cachedFile.Exists)
{
StructureHelper cachedMap = RetrieveStructureTree(cachedFile);
if (cachedMap != null)
{
foreach (ProfileEntry item in cachedMap.StructureEntries)
{
_profileEntries.Add(item);
}
}
NotifyPropertyChange("ProfileTreeItems");
return;
}
string realName = structureName.TrimStart(new char[] { '_' });
ProfileEntry root = new ProfileEntry();
root.Name = realName + " [" + structureSize + "]";
root.Parent = null;
root.IsExpanded = true;
root.Offset = 0;
root.Length = (uint)structureSize;
_profileEntries.Add(root);
PopulateNode(structureName, root, 0);
NotifyPropertyChange("ProfileTreeItems");
// persist the tree records to save time next time
StructureHelper sh = new StructureHelper();
sh.StructureEntries = new List <ProfileEntry>();
foreach (ProfileEntry e in _profileEntries)
{
sh.StructureEntries.Add(e);
}
PersistStructureTree(sh, _dataProvider.CacheFolder + "\\structure_" + structureName);
}
