Using ParseContext to Control Parsing

The ParseContext is used to configure parsing for a given file.

The general use is 

parseContext.set(MyClass.class, new MyClass());
parser.parse(inputStream, contentHandler, metadata, parseContext);

General

The following uses apply to several parsers:

  1. Handling embedded files
    1a. EmbeddedDocumentExtractor – for handling embedded files, the user can specify a custom EmbeddedDocumentExtractor.

1b. Parser – if the user fails to pass in an EmbeddedDocumentExtractor, the parsers will look for a Parser.class in the ParseContext, and Tika will build a ParsingEmbeddedDocumentExtractor based on that Parser automatically.
1c. NOTE: As of Tika 1.15, if the user doesn't specify an EmbeddedDocumentExtractor.class or a Parser.class, a ParsingEmbeddedDocumentExtractor will be automatically added with an AutoDetectParser. Before Tika 1.15, if a user failed to pass in an EmbeddedDocumentExtractor or a Parser, Tika would skip embedded files.

2. XMLParsing – Users can send in their own XMLReader (StAX), SAXParser (SAX), SAXParserFactory (SAX) or DocumentBuilder (DOM). Parsers that use XML parsing will use these resources for XML parsing.

3. PasswordProvider – If you know the password to password protected files, you can send in a PasswordProvider via the ParseContext.

4. ExecutorService – For parsers that use an ExecutorService, users can pass in their own ExecutorService.

Parser Specific

  1. HtmlParser

2. TesseractOcrParser

3. PDFParser

4. Microsoft Parser (as of Tika 1.15)

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