Andrea,
I’m about to commit an example (see TIKA-1674). In about 10 minutes, look
for org.apache.tika.example.ExtractEmbeddedFiles in the tika-examples module.
I’m still a bit stumped though on why my example isn’t working recursively.
It is only pulling out the children of the input document. Stay tuned to
TIKA-1674 for follow up on that.
Best,
Tim
From: Andrea Asta [mailto:[email protected]]
Sent: Tuesday, July 07, 2015 6:22 AM
To: [email protected]
Subject: Re: Extract PDF inline images
Hi Tim,
thanks for your response, but I can't find a complete solution.
I've created a class using the same FileEmbeddedDocumentExtractor from TikaCLI,
and now I'm trying to do a sample main program with a PDF containing some
images.
This is my code, but I can't have any image stored and the methods of
DocumentExtractor are never called using debugger.
Thanks
Andrea
RecursiveParserWrapper parser = new RecursiveParserWrapper(
new AutoDetectParser(),
new BasicContentHandlerFactory(HANDLER_TYPE.XML, -1)
);
Metadata metadata = new Metadata();
ParseContext context = new ParseContext();
FileEmbeddedDocumentExtractor extractor = new FileEmbeddedDocumentExtractor();
context.set(FileEmbeddedDocumentExtractor.class, extractor);
PDFParserConfig config = new PDFParserConfig();
config.setExtractInlineImages(true);
config.setExtractUniqueInlineImagesOnly(true);
context.set(org.apache.tika.parser.pdf.PDFParserConfig.class, config);
context.set(org.apache.tika.parser.Parser.class, new AutoDetectParser());
InputStream is = PdfRecursiveExample.class.getResourceAsStream("/my.PDF");
ToXMLContentHandler handler = new ToXMLContentHandler(new FileOutputStream(new
File("out.txt")), "UTF-8");
parser.parse(is, handler, metadata, context);
2015-07-06 12:59 GMT+02:00 Allison, Timothy B.
<[email protected]<mailto:[email protected]>>:
Hi Andrea,
The RecursiveParserWrapper, as you found, is only for extracted content and
metadata. It was designed to cache metadata and content from embedded
documents so that you can easily keep those two things together for each
embedded document.
To extract the raw bytes from embedded files, try implementing an
EmbeddedDocumentExtractor and passing that into the ParseContext. Take a look
at
http://svn.apache.org/repos/asf/tika/trunk/tika-server/src/main/java/org/apache/tika/server/resource/UnpackerResource.java
and specifically the inner class MyEmbeddedDocument extractor for an example.
As another example, look at
http://svn.apache.org/repos/asf/tika/trunk/tika-app/src/main/java/org/apache/tika/cli/TikaCLI.java,
and specifically the inner class: FileEmbeddedDocumentExtractor
Basically, in ParseEmbedded, just copy the InputStream to a FileOutputStream,
and you should be good to go.
public boolean shouldParseEmbedded(Metadata metadata) {
return true;
}
public void parseEmbedded(InputStream inputStream, ContentHandler
contentHandler, Metadata metadata, boolean b) throws SAXException, IOException {
Best,
Tim
From: Andrea Asta [mailto:[email protected]<mailto:[email protected]>]
Sent: Monday, July 06, 2015 6:11 AM
To: [email protected]<mailto:[email protected]>
Subject: Extract PDF inline images
Hello,
I'm trying to store the inline images from a PDF to a local folder, but can't
find any valid example. I can only use the RecursiveParserWrapper to get all
the available metadata, but not the binary image content.
This is my code:
RecursiveParserWrapper parser = new RecursiveParserWrapper(
new AutoDetectParser(),
new BasicContentHandlerFactory(HANDLER_TYPE.XML, -1)
);
Metadata metadata = new Metadata();
ParseContext context = new ParseContext();
PDFParserConfig config = new PDFParserConfig();
PDFParser p;
config.setExtractInlineImages(true);
config.setExtractUniqueInlineImagesOnly(false);
context.set(org.apache.tika.parser.pdf.PDFParserConfig.class, config);
context.set(org.apache.tika.parser.Parser.class, parser);
InputStream is = PdfRecursiveExample.class.getResourceAsStream("/BA200PDE.PDF");
//parsing the file
ToXMLContentHandler handler = new ToXMLContentHandler(new FileOutputStream(new
File("out.txt")), "UTF-8");
parser.parse(is, handler, metadata, context);
How can I store each image file to a folder?
Thanks
Andrea
