public static ZipDirectory FromArchive(IArchive archive)
{
ZipDirectory root = new ZipDirectory();
Dictionary<string, ZipDirectory> directories = new Dictionary<string, ZipDirectory>
{
{"", root}
};
foreach (IArchiveEntry entry in archive.Entries)
{
string entryKey = entry.Key.Trim('/');
string directoryPath = entryKey.Substring(0, entryKey.LastIndexOf('/') + 1);
string entryName = entryKey.Substring(entryKey.LastIndexOf('/') + 1);
ZipDirectory container = directories[directoryPath];
if (entry.IsDirectory)
{
ZipDirectory newDirectory = new ZipDirectory();
container.Directories.Add(entryName, newDirectory);
directories.Add(entry.Key, newDirectory);
}
else
{
container.Files.Add(entryName, entry);
}
}
return root;
}
private async Task ReadCollectionFromZip(IArchiveEntry entry, ZipDirectory currentDirectory, string currentPath, Dictionary<string, IArchiveEntry> resourceEntries, Indiagram parent)
{
using (Stream entryStream = entry.OpenEntryStream())
{
XDocument xmlDocument = XDocument.Load(entryStream);
XElement rootElement = xmlDocument.Element("indiagram");
if (rootElement != null)
{
// the current element is an indiagram, just read it
await CreateIndiagramFromXml(rootElement, false, parent, async (key, type) =>
{
return await Task.Run(() =>
{
if (resourceEntries.ContainsKey(key))
{
return resourceEntries[key].OpenEntryStream();
}
throw new IndexOutOfRangeException(string.Format("Key {0} is not available in resources", key));
});
});
}
else
{
// the current element is a category, read it + process its children
rootElement = xmlDocument.Element("category");
if (rootElement == null)
{
return;
}
Indiagram category = await CreateIndiagramFromXml(rootElement, true, parent, async (key, type) =>
{
return await Task.Run(() =>
{
if (resourceEntries.ContainsKey(key))
{
return resourceEntries[key].OpenEntryStream();
}
throw new IndexOutOfRangeException(string.Format("Key {0} is not available in resources", key));
});
});
XElement indiagramsElement = rootElement.Element("indiagrams");
if (indiagramsElement == null)
{
return;
}
foreach (XElement child in indiagramsElement.Elements("indiagram"))
{
// look for the entry
string directoryName = Path.GetDirectoryName(child.Value);
string fileName = Path.GetFileName(child.Value);
ZipDirectory directory = GetSubZipDirectory(currentDirectory, currentPath, directoryName);
if (directory.Files.ContainsKey(fileName))
{
await ReadCollectionFromZip(directory.Files[fileName], directory, directoryName, resourceEntries, category);
}
else
{
throw new IndexOutOfRangeException("file names mismatch");
}
}
}
}
}
private ZipDirectory GetSubZipDirectory(ZipDirectory current, string currentPath, string expectedPath)
{
if (string.Equals(currentPath, expectedPath, StringComparison.CurrentCultureIgnoreCase))
{
return current;
}
ZipDirectory sub = GetSubZipDirectory(current, currentPath, Path.GetDirectoryName(expectedPath));
string dirName = Path.GetFileName(expectedPath);
if (sub.Directories.ContainsKey(dirName))
{
return sub.Directories[dirName];
}
throw new IndexOutOfRangeException("directory names mismatch");
}