private void _generateImagesIM(
FileVersion fileVersion,
File file,
int depth,
int dpi,
int height,
int width,
boolean thumbnail)
throws Exception {
// Generate images
String tempFileId =
DLUtil.getTempFileId(fileVersion.getFileEntryId(), fileVersion.getVersion());
IMOperation imOperation = new IMOperation();
imOperation.alpha("off");
imOperation.density(dpi, dpi);
if (height != 0) {
imOperation.adaptiveResize(width, height);
} else {
imOperation.adaptiveResize(width);
}
imOperation.depth(depth);
if (thumbnail) {
imOperation.addImage(file.getPath() + "[0]");
imOperation.addImage(getThumbnailTempFilePath(tempFileId));
} else {
imOperation.addImage(file.getPath());
imOperation.addImage(getPreviewTempFilePath(tempFileId, -1));
}
_convertCmd.run(imOperation);
// Store images
if (thumbnail) {
File thumbnailTempFile = getThumbnailTempFile(tempFileId);
try {
addFileToStore(
fileVersion.getCompanyId(), THUMBNAIL_PATH,
getThumbnailFilePath(fileVersion), thumbnailTempFile);
} finally {
FileUtil.delete(thumbnailTempFile);
}
} else {
// ImageMagick converts single page PDFs without appending an
// index. Rename file for consistency.
File singlePagePreviewFile = getPreviewTempFile(tempFileId, -1);
if (singlePagePreviewFile.exists()) {
singlePagePreviewFile.renameTo(getPreviewTempFile(tempFileId, 1));
}
int total = getPreviewTempFileCount(fileVersion);
for (int i = 0; i < total; i++) {
File previewTempFile = getPreviewTempFile(tempFileId, i + 1);
try {
addFileToStore(
fileVersion.getCompanyId(),
PREVIEW_PATH,
getPreviewFilePath(fileVersion, i + 1),
previewTempFile);
} finally {
FileUtil.delete(previewTempFile);
}
}
}
}
