Class DOCParser
- java.lang.Object
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- com.logicaldoc.core.parser.AbstractParser
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- com.logicaldoc.core.parser.RTFParser
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- com.logicaldoc.core.parser.DOCParser
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- All Implemented Interfaces:
Parser
public class DOCParser extends RTFParser
Parses a MS Word (*.doc, *.dot) file to extract the text contained in the file. This class uses the external library HWPF provided by the Apache Jakarta POI project. Even though this library provides features to extract the document author and version, we do not use those features, because the library is known to be buggy. The important part is to get the text content, not extracting the author, date, etc. is not essential.- Since:
- 3.5
- Author:
- Michael Scholz, Sebastian Stein, Alessandro Gasparini - LogicalDOC
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Constructor Summary
Constructors Constructor Description DOCParser()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
countPages(InputStream input, String filename)
Counts the number of pages of the given binary document.String
parse(InputStream input, String filename, String encoding, Locale locale, String tenant, Document document, String fileVersion)
Extracts content for the text content of the given binary document.-
Methods inherited from class com.logicaldoc.core.parser.RTFParser
countPages, internalParse
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Methods inherited from class com.logicaldoc.core.parser.AbstractParser
parse, parse, parse
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Method Detail
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parse
public String parse(InputStream input, String filename, String encoding, Locale locale, String tenant, Document document, String fileVersion)
Description copied from interface:Parser
Extracts content for the text content of the given binary document. The content type and character encoding (if available and applicable) are given as arguments.The implementation can choose either to read and parse the given document immediately or to return a reader that does it incrementally. The only constraint is that the implementation must close the given stream latest when the returned reader is closed. The caller on the other hand is responsible for closing the returned reader.
The implementation should only throw an exception on transient errors, i.e. when it can expect to be able to successfully extract the text content of the same binary at another time. An effort should be made to recover from syntax errors and other similar problems.
This method should be thread-safe, i.e. it is possible that this method is invoked simultaneously by different threads to extract the text content of different documents. On the other hand the returned reader does not need to be thread-safe.
The parsing has to be completed before the seconds specified in the parser.timeout config. property.
- Specified by:
parse
in interfaceParser
- Overrides:
parse
in classAbstractParser
- Parameters:
input
- binary content from which to extract the textfilename
- name of the fileencoding
- character encodinglocale
- the localetenant
- name of the tenantdocument
- the document the file belongs to (optional)fileVersion
- the file version being processed (optional)- Returns:
- the extracted text
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countPages
public int countPages(InputStream input, String filename)
Description copied from interface:Parser
Counts the number of pages of the given binary document.- Specified by:
countPages
in interfaceParser
- Overrides:
countPages
in classRTFParser
- Parameters:
input
- binary content from which to extract the textfilename
- name of the file- Returns:
- the number of pages
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