Dear all,
I am running into OOM issues when trying to handle powerpoint files containing
large sound and image files. The problem occurs during the constructor phase
as it appears to attempt to load all files into memory at once.
Is there an alternative approach I can use whereby the data of embedded files /
images can written out to streams instead? I notice Word / HWPF has such a
facility with this method:
/**
* Returns picture object tied to specified CharacterRun
* @param run
* @param fillBytes if true, Picture will be returned with filled byte array
that represent picture's contents. If you don't want
* to have that byte array in memory but only write picture's contents to
stream, pass false and then use Picture.writeImageContent
* @see Picture#writeImageContent(java.io.OutputStream)
* @return a Picture object if picture exists for specified CharacterRun,
null otherwise. PicturesTable.hasPicture is used to determine this.
* @see #hasPicture(org.apache.poi.hwpf.usermodel.CharacterRun)
*/
public Picture extractPicture(CharacterRun run, boolean fillBytes) {
if (hasPicture(run)) {
return new Picture(run.getPicOffset(), _dataStream, fillBytes);
}
return null;
}
Thanks so much for any pointers.
- Chris
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