public Documents RasterizeMany(RasterizationTarget[] targets, string guid, Person uploader,
Organization organization)
{
Documents result = new Documents();
int pageCountTotal = 0;
int pageCountRunning = 0;
foreach (RasterizationTarget target in targets)
{
pageCountTotal += GetPageCount(target.FullyQualifiedFileName);
}
foreach (RasterizationTarget target in targets)
{
int pdfPageCount = GetPageCount(target.FullyQualifiedFileName); // cached
// Create progress range
ProgressRange range = new ProgressRange
{
Minimum = pageCountRunning * 100 / pageCountTotal,
Maximum = (pageCountRunning + pdfPageCount) * 100 / pageCountTotal
};
// Request one conversion
Documents docs = RasterizeOne(target.FullyQualifiedFileName, target.ClientFileName, guid, uploader,
organization, range);
// Update pages converted
pageCountRunning += pdfPageCount;
// Finally, ask the backend to do the high-res conversions, but now we have the basic, fast ones
if (docs.Count > 0)
{
RasterizeDocumentHiresOrder backendOrder = new RasterizeDocumentHiresOrder(docs[0]);
backendOrder.Create();
}
}
// Set progress to 100% to avoid rounding errors freezing the UI at 99%
BroadcastProgress(organization, guid, 100);
return(result);
}
public Documents RasterizeOne(string fullyQualifiedFileName, string clientFileName, string guid, Person uploader, Organization organization = null, ProgressRange progressRange = null)
{
int pdfPageCount = GetPageCount(fullyQualifiedFileName);
string relativeFileName = fullyQualifiedFileName.Substring(Document.StorageRoot.Length);
Process process = Process.Start("bash",
"-c \"gs -dNOPAUSE -dBATCH -sDEVICE=png16m -r75 -sOutputFile=" + fullyQualifiedFileName + "-%04d.png " +
fullyQualifiedFileName + "\"");
Documents documents = new Documents();
if (progressRange == null)
{
progressRange = new ProgressRange();
}
int pageCounter = 1; // the first produced page will be numbered ONE, not ImageMagick's zero
string testPageFileName = String.Format("{0}-{1:D4}.png", relativeFileName, pageCounter);
string lastPageFileName = testPageFileName;
// Convert works by first calling imagemagick that creates /tmp/magick-* files
int lastProgress = progressRange.Minimum;
int progress = progressRange.Minimum;
while (pageCounter <= pdfPageCount)
{
while (!File.Exists(Document.StorageRoot + testPageFileName))
{
// Wait for file to appear
if (!process.HasExited)
{
process.WaitForExit(250);
}
/* -- old ImageMagick-dependent code
* if (pageCounter == 0)
* {
* // If first page hasn't appeared yet, check for the Magick temp files
*
* int currentMagickCount = Directory.GetFiles("/tmp", "magick-*").Count();
* int currentFilePercentage = currentMagickCount * 50 / pdfPageCount;
* if (currentFilePercentage > 50)
* {
* currentFilePercentage = 50; // we may be not the only one converting right now
* }
*
* progress = progressRange.Minimum + currentFilePercentage * 100 / progressRange.Range;
* if (progress > lastProgress) // can't use Not-Equal; temp files slowly deleted before next step
* {
* BroadcastProgress(organization, guid, progress);
* lastProgress = progress;
* }
* }*/
}
progress = progressRange.Minimum + ((pageCounter + 1) * progressRange.Range / pdfPageCount);
if (progress > lastProgress)
{
BroadcastProgress(organization, guid, progress);
lastProgress = progress;
}
// If the page# file that has appeared is 2+, then the preceding file is ready
if (pageCounter > 1)
{
long fileLength = new FileInfo(Document.StorageRoot + lastPageFileName).Length;
documents.Add(Document.Create(lastPageFileName,
clientFileName + " {{LOCPAGE-" + (pageCounter - 1).ToString(CultureInfo.InvariantCulture) + "-" + pdfPageCount.ToString(CultureInfo.InvariantCulture) + "}}",
fileLength, guid, null, uploader));
// Set to readonly, lock out changes, permit all read
Syscall.chmod(Document.StorageRoot + lastPageFileName,
FilePermissions.S_IRUSR | FilePermissions.S_IRGRP | FilePermissions.S_IROTH);
// Prepare to save the next file
lastPageFileName = testPageFileName;
}
// Increase the page counter and the file we're looking for
pageCounter++;
testPageFileName = String.Format("{0}-{1:D4}.png", relativeFileName, pageCounter);
}
// We've seen the last page being written -- wait for process to exit to assure it's complete
if (!process.HasExited)
{
process.WaitForExit();
}
// Save the last page
long fileLengthLastPage = new FileInfo(Document.StorageRoot + lastPageFileName).Length;
documents.Add(Document.Create(lastPageFileName,
clientFileName + " {{LOCPAGE-" + pdfPageCount.ToString(CultureInfo.InvariantCulture) + "-" + pdfPageCount.ToString(CultureInfo.InvariantCulture) + "}}",
fileLengthLastPage, guid, null, uploader));
// Set to readonly, lock out changes, permit all read
Syscall.chmod(Document.StorageRoot + lastPageFileName,
FilePermissions.S_IRUSR | FilePermissions.S_IRGRP | FilePermissions.S_IROTH);
return(documents);
}
public Documents RasterizeOne(string fullyQualifiedFileName, string clientFileName, string guid, Person uploader, Organization organization = null, ProgressRange progressRange = null)
{
int pdfPageCount = GetPageCount(fullyQualifiedFileName);
string relativeFileName = fullyQualifiedFileName.Substring(Document.StorageRoot.Length);
Process process = Process.Start("bash",
"-c \"convert -density 75 -background white -alpha remove " + fullyQualifiedFileName +
" " + fullyQualifiedFileName + "-%04d.png\"");
Documents documents = new Documents();
if (progressRange == null)
{
progressRange = new ProgressRange();
}
int pageCounter = 0; // the first produced page will be zero
string testPageFileName = String.Format("{0}-{1:D4}.png", relativeFileName, pageCounter);
string lastPageFileName = testPageFileName;
// Convert works by first calling imagemagick that creates /tmp/magick-* files
int lastProgress = progressRange.Minimum;
int progress = progressRange.Minimum;
while (pageCounter < pdfPageCount)
{
while (!File.Exists(Document.StorageRoot + testPageFileName))
{
// Wait for file to appear
if (!process.HasExited)
{
process.WaitForExit(250);
}
if (pageCounter == 0)
{
// If first page hasn't appeared yet, check for the Magick temp files
int currentMagickCount = Directory.GetFiles("/tmp", "magick-*").Count();
int currentFilePercentage = currentMagickCount * 50 / pdfPageCount;
if (currentFilePercentage > 50)
{
currentFilePercentage = 50; // we may be not the only one converting right now
}
progress = progressRange.Minimum + currentFilePercentage * 100 / progressRange.Range;
if (progress > lastProgress) // can't use Not-Equal; temp files slowly deleted before next step
{
BroadcastProgress(organization, guid, progress);
lastProgress = progress;
}
}
}
progress = progressRange.Minimum + progressRange.Range / 2 + ((pageCounter + 1) * progressRange.Range / pdfPageCount) / 2;
if (progress > lastProgress)
{
BroadcastProgress(organization, guid, progress);
lastProgress = progress;
}
// If the page# file that has appeared is 1+, then the preceding file is ready
if (pageCounter > 0)
{
long fileLength = new FileInfo(Document.StorageRoot + lastPageFileName).Length;
documents.Add(Document.Create(lastPageFileName,
clientFileName + " {{LOCPAGE-" + (pageCounter).ToString(CultureInfo.InvariantCulture) + "-" + pdfPageCount.ToString(CultureInfo.InvariantCulture) + "}}",
fileLength, guid, null, uploader));
// Set to readonly, lock out changes, permit all read
Syscall.chmod(Document.StorageRoot + lastPageFileName,
FilePermissions.S_IRUSR | FilePermissions.S_IRGRP | FilePermissions.S_IROTH);
// Prepare to save the next file
lastPageFileName = testPageFileName;
}
// Increase the page counter and the file we're looking for
pageCounter++;
testPageFileName = String.Format("{0}-{1:D4}.png", relativeFileName, pageCounter);
}
// We've seen the last page being written -- wait for process to exit to assure it's complete
if (!process.HasExited)
{
process.WaitForExit();
}
// Save the last page
long fileLengthLastPage = new FileInfo(Document.StorageRoot + lastPageFileName).Length;
documents.Add(Document.Create(lastPageFileName,
clientFileName + " {{LOCPAGE-" + (pageCounter).ToString(CultureInfo.InvariantCulture) + "-" + pdfPageCount.ToString(CultureInfo.InvariantCulture) + "}}",
fileLengthLastPage, guid, null, uploader));
// Set to readonly, lock out changes, permit all read
Syscall.chmod(Document.StorageRoot + lastPageFileName,
FilePermissions.S_IRUSR | FilePermissions.S_IRGRP | FilePermissions.S_IROTH);
/* -- OLD CODE BELOW --
* process.WaitForExit();
*
* int pageCounter = 0; // the first produced page will be zero
*
* // Create all document records
*
*
* while (pageCounter < pdfPageCount)
* {
* string pageFileName = String.Format("{0}-{1:D4}.png", relativeFileName, pageCounter);
*
* if (File.Exists(Document.StorageRoot + pageFileName))
* {
* long fileLength = new FileInfo(Document.StorageRoot + pageFileName).Length;
*
* documents.Add(Document.Create(pageFileName,
* clientFileName + " " + (pageCounter + 1).ToString(CultureInfo.InvariantCulture) + "/" + pdfPageCount.ToString(CultureInfo.InvariantCulture),
* fileLength, guid, null, uploader));
*
* Syscall.chmod(Document.StorageRoot + pageFileName,
* FilePermissions.S_IRUSR | FilePermissions.S_IRGRP | FilePermissions.S_IROTH);
*
* }
*
* pageCounter++;
* } */
return(documents);
}