I just tried a pdf embedded within a .doc, and Tika extracted it. I didn't
test an mp3 so your mileage might vary.
Might want to use Tika (instructions below) or dive into its guts for
inspiration on using HWPF directly
(org.apache.tika.parser.microsoft.WordExtractor and
org.apache.tika.parser.microsoft.AbstractPOIFSExtractor) both in the parsers
jar.
If you are going the Tika route:
Create a class that implements EmbeddedResourceHandler and override "handle"
with something like this:
1) @Override
2) public void handle(String embeddedFileName, MediaType mediaType,
InputStream is) {
3)
4) System.err.println("in handle: " + mediaType);
5) if (embeddedFileName == null || embeddedFileName.equals("")){
6) embeddedFileName = "unnamed_file_"+num;
7) }
8) //in case the "embeddedFileName" comes with path information,
make sure to take just the name
9) String actualName = new File(embeddedFileName).getName();
10) File outFile = //figure out what you want to call the file
11) System.out.println("about to extract " + outFile);
12) OutputStream os = null;
13) try{
14) os = new FileOutputStream(outFile);
15) System.out.println("about to extract " + outFile);
16) IOUtils.copy(is, os);
17) os.flush();
18) } catch (IOException e){
19) /* add logging*/
20) } finally {
21) if (os != null){
22) try{
23) os.close();
24) } catch (IOException e){
25) //swallow
26) }
27) }
28) }
29)
30) }
Then call tika like this (assuming you've named your EmbeddedResourceHandler
"WithinDirectoryEmbeddedHandler"):
TikaInputStream is = TikaInputStream.get(f);
ParserContainerExtractor containerExtractor = new
ParserContainerExtractor();
containerExtractor.extract(is, new ParserContainerExtractor(),
new WithinDirectoryEmbeddedHandler(f));
is.close();
From: Chris Bamford [mailto:[email protected]]
Sent: Friday, June 07, 2013 8:32 AM
To: POI Users List
Subject: Extracting embedded files from HWPF docs
Hi guys,
Is there a way to extract files embedded into Word docs (.doc, not .docx),
using the HWPF package?
I understand that I can extract Pictures with
document.getPicturesTable().getAllPictures();
But I am specifically interested in non-pictures file too (e.g. MP3).
Thanks,
- Chris
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