I get the correct byte count reading it this way:
private byte[] getImageBytes(BlobData blobData) {
if (blobData == null) {
return null;
}
BlobKey blobKey = new BlobKey(blobData.getKey());
if (blobKey == null) {
return null;
}
long filesize = blobData.getSize();
long chunkSize = 1024;
long startIndex = 0;
long endIndex = chunkSize;
ByteArrayOutputStream out = new ByteArrayOutputStream();
if (filesize > 1024) {
boolean theend = false;
while (theend == false) {
if (endIndex == filesize) {
theend = true;
}
System.out.println("startIndex=" + startIndex + " endIndex=" +
endIndex);
byte[] b = blobstoreService.fetchData(blobKey, startIndex,
endIndex);
try {
out.write(b);
} catch (IOException e) {
e.printStackTrace();
}
startIndex = endIndex + 1;
endIndex = startIndex + chunkSize;
if (endIndex > filesize) {
endIndex = filesize;
}
}
} else {
byte[] b = blobstoreService.fetchData(blobKey, 0, 1024);
try {
out.write(b);
} catch (IOException e) {
e.printStackTrace();
}
}
byte[] filebytes = out.toByteArray();
System.out.println("getImageBytes(): filebytes size: " + filebytes.
length + " blobData.size=" + blobData.getSize());
return filebytes;
}
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