public void Update(SetInfo set)
{
SetInfo oldSet;
if (!sets.TryGetValue(set.ID, out oldSet))
{
sets.Add(set.ID, set);
}
else if (oldSet.Modified < set.Modified || oldSet.Terms == null || oldSet.Terms.Count == 0)
{
sets[set.ID] = set;
}
}
public void AddSetInfo(SetInfo si)
{
SetInfo existing;
if (sets.TryGetValue(si.ID, out existing) && existing.Modified > si.Modified)
{
return;
}
if (!sets.ContainsKey(si.ID))
{
sets[si.ID] = si;
}
}
void LoadIndex()
{
try {
using (var stream = storage.OpenFile("Index", FileMode.Open)) {
using (var reader = new BinaryReader(stream)) {
string accessToken = reader.ReadString();
string userName = reader.ReadString();
var tokenExpiry = new DateTime(reader.ReadInt64());
Credentials = new Credentials(accessToken, userName, tokenExpiry);
string profileImage = reader.ReadString();
ProfileImage = string.IsNullOrEmpty(profileImage) ? null : new Uri(profileImage, UriKind.Absolute);
indexDate = new DateTime(reader.ReadInt64());
int setCount = reader.ReadInt32();
sets = new Dictionary <long, SetInfo>();
while (setCount-- > 0)
{
var si = new SetInfo {
ID = reader.ReadInt64(),
Title = reader.ReadString(),
Author = reader.ReadString(),
Description = reader.ReadString(),
Uri = new Uri(reader.ReadString()),
TermCount = reader.ReadInt32(),
Created = new DateTime(reader.ReadInt64()),
Modified = new DateTime(reader.ReadInt64()),
TermLanguageCode = reader.ReadBoolean() ? reader.ReadString() : null,
DefinitionLanguageCode = reader.ReadBoolean() ? reader.ReadString() : null,
Subjects = new List <string>()
};
int subjectCount = reader.ReadInt32();
while (subjectCount-- > 0)
{
si.Subjects.Add(reader.ReadString());
}
si.Visibility = reader.ReadString();
si.Editable = reader.ReadString();
si.HasAccess = reader.ReadBoolean();
bool hasTerms = reader.ReadBoolean();
sets[si.ID] = si;
/*if (hasTerms)
* LoadSetTerms(si.ID);*/
}
int groupCount = reader.ReadInt32();
groups = new Dictionary <long, GroupInfo>();
while (groupCount-- > 0)
{
var gi = new GroupInfo {
ID = reader.ReadInt64(),
Name = reader.ReadString(),
Description = reader.ReadString(),
Created = new DateTime(reader.ReadInt64()),
UserCount = reader.ReadInt32(),
IsPublic = reader.ReadBoolean(),
HasAccess = reader.ReadBoolean(),
HasPassword = reader.ReadBoolean(),
HasDiscussion = reader.ReadBoolean(),
MemberAddSets = reader.ReadBoolean(),
Sets = new List <SetInfo>()
};
int groupSetCount = reader.ReadInt32();
while (groupSetCount-- > 0)
{
SetInfo si;
if (!sets.TryGetValue(reader.ReadInt64(), out si))
{
throw new CacheException("Unknown group specified as member of a group");
}
// Don't need to make a copy; GroupInfo is a value type
gi.Sets.Add(si);
}
groups[gi.ID] = gi;
}
mySets = ReadList(reader, r => r.ReadInt64());
favouriteSets = ReadList(reader, r => r.ReadInt64());
recentSets = ReadList(reader, r => r.ReadInt64());
}
}
} catch (IsolatedStorageException e) {
// The only non-fatal error.
throw new CacheIndexMissingException("Unable to load application cache because the master cache file is missing", e);
} catch (IOException) {
// Might as well delete the cache.
storage.DeleteFile("Index");
// We can't have a partially-loaded cache.
sets = new Dictionary <long, SetInfo>();
groups = new Dictionary <long, GroupInfo>();
mySets = new List <long>();
recentSets = new List <long>();
favouriteSets = new List <long>();
// I suppose if we managed to load credentials, we can use them.
// Thus, no need to reset them.
}
}
