Class HtmlEncodingDetector

All Implemented Interfaces:
Serializable, EncodingDetector

public class HtmlEncodingDetector extends Object implements EncodingDetector
Character encoding detector for determining the character encoding of a HTML document based on the potential charset parameter found in a Content-Type http-equiv meta tag somewhere near the beginning. Especially useful for determining the type among multiple closely related encodings (ISO-8859-*) for which other types of encoding detection are unreliable.
Apache Tika 1.2
See Also:
  • Constructor Details

    • HtmlEncodingDetector

      public HtmlEncodingDetector()
  • Method Details

    • detect

      public Charset detect(InputStream input, Metadata metadata) throws IOException
      Description copied from interface: EncodingDetector
      Detects the character encoding of the given text document, or null if the encoding of the document can not be detected.

      If the document input stream is not available, then the first argument may be null. Otherwise the detector may read bytes from the start of the stream to help in encoding detection. The given stream is guaranteed to support the mark feature and the detector is expected to mark the stream before reading any bytes from it, and to reset the stream before returning. The stream must not be closed by the detector.

      The given input metadata is only read, not modified, by the detector.

      Specified by:
      detect in interface EncodingDetector
      input - text document input stream, or null
      metadata - input metadata for the document
      detected character encoding, or null
      IOException - if the document input stream could not be read
    • getMarkLimit

      public int getMarkLimit()
    • setMarkLimit

      @Field public void setMarkLimit(int markLimit)
      How far into the stream to read for charset detection. Default is 8192.
      markLimit -