Interface MetadataReader

  • All Known Implementing Classes:
    DefaultMetadataReader

    public interface MetadataReader
    Handles deserialization of metadata from some kind of textual format like XML.
    Author:
    Benjamin Bentmann
    • Field Detail

      • IS_STRICT

        static final String IS_STRICT
        The key for the option to enable strict parsing. This option is of type Boolean and defaults to true. If false, unknown elements will be ignored instead of causing a failure.
        See Also:
        Constant Field Values
    • Method Detail

      • read

        Metadata read​(File input,
                      Map<String,​?> options)
               throws IOException,
                      MetadataParseException
        Reads the metadata from the specified file.
        Parameters:
        input - The file to deserialize the metadata from, must not be null.
        options - The options to use for deserialization, may be null to use the default values.
        Returns:
        The deserialized metadata, never null.
        Throws:
        IOException - If the metadata could not be deserialized.
        MetadataParseException - If the input format could not be parsed.
      • read

        Metadata read​(Reader input,
                      Map<String,​?> options)
               throws IOException,
                      MetadataParseException
        Reads the metadata from the specified character reader. The reader will be automatically closed before the method returns.
        Parameters:
        input - The reader to deserialize the metadata from, must not be null.
        options - The options to use for deserialization, may be null to use the default values.
        Returns:
        The deserialized metadata, never null.
        Throws:
        IOException - If the metadata could not be deserialized.
        MetadataParseException - If the input format could not be parsed.
      • read

        Metadata read​(InputStream input,
                      Map<String,​?> options)
               throws IOException,
                      MetadataParseException
        Reads the metadata from the specified byte stream. The stream will be automatically closed before the method returns.
        Parameters:
        input - The stream to deserialize the metadata from, must not be null.
        options - The options to use for deserialization, may be null to use the default values.
        Returns:
        The deserialized metadata, never null.
        Throws:
        IOException - If the metadata could not be deserialized.
        MetadataParseException - If the input format could not be parsed.