parse static method

DVAssetHttpPolicy parse(Object? section)

dartvel.web.server.http. A value of the wrong kind is the default rather than an error: the manifest is read by a server in production, where refusing to start over a cache setting is worse than ignoring it.

Implementation

static DVAssetHttpPolicy parse(Object? section) {
  final Map<Object?, Object?> m = section is Map ? section : const <Object?, Object?>{};
  int? seconds(Object? v) => v is num && v >= 0 ? v.toInt() : null;
  final Object? immutable = m['immutable'];
  final Object? documents = m['documents'];
  final Object? memory = m['memoryCacheMB'];
  return DVAssetHttpPolicy(
    maxAge: seconds(m['maxAge']),
    sMaxAge: seconds(m['sMaxAge']),
    staleWhileRevalidate: seconds(m['staleWhileRevalidate']),
    immutable: immutable is List
        ? <String>[for (final Object? g in immutable) if (g is String && g.isNotEmpty) g]
        : const <String>[],
    documents: documents is String && documents.trim().isNotEmpty ? documents.trim() : 'no-cache',
    memoryCacheBytes: memory is num && memory >= 0
        ? (memory * 1024 * 1024).round()
        : 16 * 1024 * 1024,
    diskCache: m['diskCache'] is bool ? m['diskCache']! as bool : true,
  );
}