private static void SaveCacheData()
{
BibliographerSettings settings;
string datadir;
settings = new BibliographerSettings("apps.bibliographer");
datadir = settings.GetString("data-directory");
Cleanup_invalid_dirs();
try {
Monitor.Enter(sections);
StreamWriter stream = new StreamWriter(new FileStream(datadir + "/cachedata", FileMode.OpenOrCreate, FileAccess.Write));
for (int section = 0; section < sections.Count; section++)
{
stream.WriteLine("[{0}]", ((CacheSection)sections[section]).section);
for (int key = 0; key < ((CacheSection)sections[section]).keys.Count; key++)
{
stream.WriteLine("{0} {1}", ((KeySection)((CacheSection)sections[section]).keys[key]).key, ((KeySection)((CacheSection)sections[section]).keys[key]).filename);
}
}
stream.Close();
Monitor.Exit(sections);
} catch (DirectoryNotFoundException e) {
WriteLine(10, e.Message);
WriteLine(1, "Directory ~/.local/share/bibliographer/ not found! Creating it...");
Directory.CreateDirectory(datadir);
} catch (Exception e) {
WriteLine(1, "Unhandled exception whilst trying to save cache: {0}", e);
}
}
public static string AddToCache(string section, string key)
{
BibliographerSettings settings;
KeySection kSection;
CacheSection cSection;
Random random;
string datadir, filename;
settings = new BibliographerSettings("apps.bibliographer");
kSection = LookupKey(section, key);
if (kSection != null)
{
return(kSection.filename);
}
cSection = LookupSection(section);
if (cSection == null)
{
// add a new section
sections.Add(new CacheSection(section));
sections.Sort(new SectionCompare());
cSection = LookupSection(section);
if (cSection == null)
{
WriteLine(5, "Failing to add a new section in cache, that's messed up... :-(");
return("");
}
}
datadir = settings.GetString("data-directory");
random = new Random();
do
{
filename = datadir + "/cache/";
const string chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
for (int i = 0; i < 20; i++)
{
filename = filename + chars[random.Next() % chars.Length];
}
bool ok = false;
try {
FileStream stream = new FileStream(filename, FileMode.CreateNew, FileAccess.Write);
stream.Close();
ok = true;
} catch (DirectoryNotFoundException e) {
WriteLine(10, e.Message);
try {
Directory.CreateDirectory(datadir);
} catch (Exception e2) {
WriteLine(10, e2.Message);
}
try {
Directory.CreateDirectory(datadir + "/cache");
} catch (Exception e2) {
WriteLine(10, e2.Message);
WriteLine(1, "Failed to create directory {0}", datadir + "/cache");
}
} catch (IOException e) {
WriteLine(10, e.Message);
// file already exists
}
if (ok)
{
break;
}
} while (true);
cSection.keys.Add(new KeySection(key, filename));
cSection.keys.Sort(new KeyCompare());
SaveCacheData();
return(filename);
}
private static void LoadCacheData()
{
BibliographerSettings settings;
CacheSection curSection;
StreamReader stream;
string datadir;
settings = new BibliographerSettings("apps.bibliographer");
datadir = settings.GetString("data-directory");
sections = new ArrayList();
try {
stream = new StreamReader(new FileStream(datadir + "/cachedata", FileMode.Open, FileAccess.Read));
// cache opened! let's read some data...
curSection = null;
while (stream.Peek() > -1)
{
string line = stream.ReadLine();
if (line != "")
{
if (line[0] == '[')
{
// new section
char[] splits = { '[', ']' };
string sectionName = line.Split(splits)[1];
// check that we don't already have this section name
bool found = false;
for (int i = 0; i < sections.Count; i++)
{
if (((CacheSection)sections[i]).section == sectionName)
{
found = true;
break;
}
}
if (found)
{
WriteLine(5, "Duplicate section {0} in cache file!", sectionName);
curSection = null;
continue;
}
if (curSection != null)
{
curSection.keys.Sort(new KeyCompare());
sections.Add(curSection);
}
curSection = new CacheSection(sectionName);
}
else
{
if (curSection == null)
{
// no active section, so skip
continue;
}
string[] fields = line.Split(' ');
curSection.keys.Add(new KeySection(fields[0], fields[1]));
}
}
}
stream.Close();
if (curSection != null)
{
sections.Add(curSection);
}
sections.Sort(new SectionCompare());
} catch (DirectoryNotFoundException e) {
WriteLine(10, e.Message);
WriteLine(1, "Directory ~/.local/share/bibliographer/ not found! Creating it...");
Directory.CreateDirectory(datadir);
} catch (FileNotFoundException e) {
WriteLine(10, e.Message);
// no cache, no problem-o :-)
}
}
