private void ModelToJpegsThread(object objparam)
{
ModelToJpegsParameters param = objparam as ModelToJpegsParameters;
try
{
while (true)
{
if (param.model.version == -1) // someone told us to stop.
{
return;
}
int nWhichToProcess = -1;
lock (param.locker)
{
nWhichToProcess = param.iItemLatest;
param.iItemLatest++;
if (nWhichToProcess < param.model.list.Count)
{
Form1.g_status = "Downloading " + (nWhichToProcess + 1) + " of " + param.model.list.Count + "...";
}
else
{
return;
}
}
ModelItemToJpeg(param.model.list[nWhichToProcess], param.sDir);
}
}
catch (Exception e)
{
param.model.version = -1; // tell everyone else to stop.
string s = e.ToString().Replace("Exception", "").Replace("exception", "");
System.Diagnostics.Debug.Assert(false);
MessageBox.Show(s);
}
}
private void ModelToJpegs(BookmarkBucketObjectModel obj, string sDir)
{
if (obj == null || obj.list.Count == 0) return;
sDir += "\\out";
if (Directory.Exists(sDir)) throw new BookmarkBucketException("'out' directory already exists.");
Directory.CreateDirectory(sDir);
// first, make sure we won't overwrite files.
foreach (BookmarkBucketItem item in obj.list)
{
if (item.sFile.Length == 0 || item.sUrl.Length == 0)
throw new BookmarkBucketException("Missing url or title.");
if (!BookmarkBucketCore.looksLikeAUrl(item.sUrl))
throw new BookmarkBucketException("invalid url");
if (File.Exists(sDir + "\\" + item.GetNameWithoutExtension() + ".jpeg"))
throw new BookmarkBucketException("Jpeg for '" + item.GetNameWithoutExtension() + "' already exists.");
if (File.Exists(sDir + "\\" + item.GetNameWithoutExtension() + ".png"))
throw new BookmarkBucketException("Png for '" + item.GetNameWithoutExtension() + "' already exists.");
if (File.Exists(sDir + "\\" + item.GetNameWithoutExtension() + ".html"))
throw new BookmarkBucketException("Html for '" + item.GetNameWithoutExtension() + "' already exists.");
}
// test write access.
try { File.WriteAllText(sDir + "\\!!temp!!.test", "test"); }
catch (IOException) { throw new BookmarkBucketException("Apparently no write access here..."); }
finally { if (File.Exists(sDir + "\\!!temp!!.test")) File.Delete(sDir + "\\!!temp!!.test"); }
// use my own threadpool instead of c#'s because I want to limit number of threads running.
int nThreads = 4;
ModelToJpegsParameters param = new ModelToJpegsParameters { iItemLatest = 0, locker = new object(), model = obj, sDir = sDir };
Thread[] threads = new Thread[nThreads];
for (int i = 0; i < nThreads; i++)
{
threads[i] = new Thread(new ParameterizedThreadStart(this.ModelToJpegsThread));
threads[i].Start(param);
}
// wait for all threads to complete. note that obj.version will be negative if an error occurred.
for (int i = 0; i < nThreads; i++)
threads[i].Join();
}
private void ModelToJpegs(BookmarkBucketObjectModel obj, string sDir)
{
if (obj == null || obj.list.Count == 0)
{
return;
}
sDir += "\\out";
if (Directory.Exists(sDir))
{
throw new BookmarkBucketException("'out' directory already exists.");
}
Directory.CreateDirectory(sDir);
// first, make sure we won't overwrite files.
foreach (BookmarkBucketItem item in obj.list)
{
if (item.sFile.Length == 0 || item.sUrl.Length == 0)
{
throw new BookmarkBucketException("Missing url or title.");
}
if (!BookmarkBucketCore.looksLikeAUrl(item.sUrl))
{
throw new BookmarkBucketException("invalid url");
}
if (File.Exists(sDir + "\\" + item.GetNameWithoutExtension() + ".jpeg"))
{
throw new BookmarkBucketException("Jpeg for '" + item.GetNameWithoutExtension() + "' already exists.");
}
if (File.Exists(sDir + "\\" + item.GetNameWithoutExtension() + ".png"))
{
throw new BookmarkBucketException("Png for '" + item.GetNameWithoutExtension() + "' already exists.");
}
if (File.Exists(sDir + "\\" + item.GetNameWithoutExtension() + ".html"))
{
throw new BookmarkBucketException("Html for '" + item.GetNameWithoutExtension() + "' already exists.");
}
}
// test write access.
try { File.WriteAllText(sDir + "\\!!temp!!.test", "test"); }
catch (IOException) { throw new BookmarkBucketException("Apparently no write access here..."); }
finally { if (File.Exists(sDir + "\\!!temp!!.test"))
{
File.Delete(sDir + "\\!!temp!!.test");
}
}
// use my own threadpool instead of c#'s because I want to limit number of threads running.
int nThreads = 4;
ModelToJpegsParameters param = new ModelToJpegsParameters {
iItemLatest = 0, locker = new object(), model = obj, sDir = sDir
};
Thread[] threads = new Thread[nThreads];
for (int i = 0; i < nThreads; i++)
{
threads[i] = new Thread(new ParameterizedThreadStart(this.ModelToJpegsThread));
threads[i].Start(param);
}
// wait for all threads to complete. note that obj.version will be negative if an error occurred.
for (int i = 0; i < nThreads; i++)
{
threads[i].Join();
}
}
