public static bool TryLoadArchive()

in src/managed/DiffGen/ArchiveUtility/ArchiveLoader.cs [43:100]
48 lines of code
7 McCabe index (conditional complexity)

        public static bool TryLoadArchive(ArchiveLoaderContext context, out ArchiveTokenization tokens, IArchive archive)
        {
            var type = archive.GetType();

            context.Logger?.Log(context.LogLevel, "Testing if archive is format: {0}", type.FullName);

            if (context.TokenCache.ContainsKey(type))
            {
                tokens = context.TokenCache[type];
                context.Logger?.Log(context.LogLevel, "Found previously loaded tokens for type: {0}. ArchiveItem: {1}", type.FullName, tokens.ArchiveItem.GetSha256HashString());

                return true;
            }

            if (!archive.IsMatchingFormat())
            {
                context.Logger?.Log(context.LogLevel, "Archive is not of format: {0}", type.FullName);
                tokens = null;
                return false;
            }
            else
            {
                context.Logger?.Log(context.LogLevel, "Archive is of format: {0}", type.FullName);
            }

            // We may have already gotten tokens from determing if this was the same type
            if (context.TokenCache.ContainsKey(type))
            {
                tokens = context.TokenCache[type];
                return true;
            }

            if (context.CancellationToken != CancellationToken.None)
            {
                context.CancellationToken.ThrowIfCancellationRequested();
            }

            try
            {
                tokens = archive.Tokenize();

                context.TokenCache[type] = tokens;
                context.Logger?.Log(context.LogLevel, "Setting into Token Cache: ArchiveItem: {0}", tokens.ArchiveItem.GetSha256HashString());

                return true;
            }
            catch (FatalException)
            {
                throw;
            }
            catch (Exception e)
            {
                context.Logger?.LogError("Exception occurred while processing format: {0}", type.FullName);
                context.Logger?.LogError("Exception: {0}", e.ToString());
                tokens = null;
                return false;
            }
        }