public static List <ConversationListObject> GetConvsFromIndividualFiles()
{
byte[] data = null;
List <ConversationListObject> convList = null;
using (IsolatedStorageFile store = IsolatedStorageFile.GetUserStoreForApplication())
{
if (!store.DirectoryExists(CONVERSATIONS_DIRECTORY))
{
return(null);
}
string[] files = store.GetFileNames(CONVERSATIONS_DIRECTORY + "\\*");
if (files == null || files.Length == 0)
{
return(null);
}
convList = new List <ConversationListObject>(files.Length);
foreach (string fileName in files)
{
if (fileName == "Convs" || fileName == "Convs_bkp" || fileName == "_Convs")
{
continue;
}
using (var file = store.OpenFile(CONVERSATIONS_DIRECTORY + "\\" + fileName, FileMode.Open, FileAccess.Read))
{
using (var reader = new BinaryReader(file))
{
ConversationListObject co = new ConversationListObject();
co.ReadVer_Latest(reader); // we know we have to read from latest file system
if (IsValidConv(co))
{
convList.Add(co);
}
}
}
}
}
convList.Sort();
return(convList);
}
/// <summary>
/// this function will automatically read which read function version should be used to read file
/// </summary>
/// <returns></returns>
public static List <ConversationListObject> getAllConvs()
{
List <ConversationListObject> convList = null;
// when reading a file , nobody should write it
lock (readWriteLock)
{
using (IsolatedStorageFile store = IsolatedStorageFile.GetUserStoreForApplication())
{
if (!store.DirectoryExists(CONVERSATIONS_DIRECTORY))
{
return(null);
}
string fname;
if (store.FileExists(CONVERSATIONS_DIRECTORY + "\\" + "Convs"))
{
fname = CONVERSATIONS_DIRECTORY + "\\" + "Convs";
}
else if (store.FileExists(CONVERSATIONS_DIRECTORY + "\\" + "Convs_bkp"))
{
fname = CONVERSATIONS_DIRECTORY + "\\" + "Convs_bkp";
}
else
{
return(null);
}
using (var file = store.OpenFile(fname, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (var reader = new BinaryReader(file))
{
int count = 0;
try
{
count = reader.ReadInt32();
}
catch
{
}
if (count > 0)
{
bool isLessThanEqualTo_1500 = false;
if (Utils.compareVersion(App.CURRENT_VERSION, "1.5.0.0") != 1) // current_ver <= 1.5.0.0
{
isLessThanEqualTo_1500 = true;
}
convList = new List <ConversationListObject>(count);
for (int i = 0; i < count; i++)
{
ConversationListObject item = new ConversationListObject();
try
{
if (isLessThanEqualTo_1500)
{
item.ReadVer_1_4_0_0(reader);
}
else
{
item.ReadVer_Latest(reader);
}
}
catch
{
item = null;
}
if (IsValidConv(item))
{
convList.Add(item);
}
}
convList.Sort();
}
reader.Close();
}
try
{
file.Close();
file.Dispose();
}
catch { }
}
store.Dispose();
}
return(convList);
}
}
