Class GenericXMLWriter

All Implemented Interfaces:
IExtensibleWriter, IXMLWriter

public class GenericXMLWriter extends XMLWriterBase
Generic handler for marshalling text document to a writer. This is the most general output handler since it can be used with any character encoding and and output writer.
Author:
Dennis M. Sosnoski
  • Field Details

    • m_writer

      private Writer m_writer
      Writer for text output.
    • m_escaper

      private ICharacterEscaper m_escaper
      Escaper for character data content output.
    • m_indent

      private boolean m_indent
      Indent tags for pretty-printed text.
    • m_indentBase

      private int m_indentBase
      Base number of characters in indent sequence (end of line only).
    • m_indentPerLevel

      private int m_indentPerLevel
      Number of extra characters in indent sequence per level of nesting.
    • m_indentSequence

      private char[] m_indentSequence
      Raw text for indentation sequences.
  • Constructor Details

    • GenericXMLWriter

      public GenericXMLWriter(String[] uris)
      Constructor.
      Parameters:
      uris - ordered array of URIs for namespaces used in document (must be constant; the value in position 0 must always be the empty string "", and the value in position 1 must always be the XML namespace "http://www.w3.org/XML/1998/namespace")
    • GenericXMLWriter

      public GenericXMLWriter(GenericXMLWriter base, String[] uris)
      Copy constructor. This takes the writer from a supplied instance, while setting a new array of namespace URIs. It's intended for use when invoking one binding from within another binding.
      Parameters:
      base - instance to be used as base for writer
      uris - ordered array of URIs for namespaces used in document (see GenericXMLWriter(String[]))
  • Method Details

    • setOutput

      public void setOutput(Writer outw, ICharacterEscaper escaper)
      Set output writer and escaper. If an output writer is currently open when this is called the existing writer is flushed and closed, with any errors ignored.
      Parameters:
      outw - writer for document data output
      escaper - character escaper for chosen encoding
    • setIndentSpaces

      public void setIndentSpaces(int count, String newline, char indent)
      Set nesting indentation. This is advisory only, and implementations of this interface are free to ignore it. The intent is to indicate that the generated output should use indenting to illustrate element nesting.
      Parameters:
      count - number of character to indent per level, or disable indentation if negative (zero means new line only)
      newline - sequence of characters used for a line ending (null means use the single character '\n')
      indent - whitespace character used for indentation
    • writeMarkup

      protected void writeMarkup(String text) throws IOException
      Write markup text to output. Markup text can be written directly to the output without the need for any escaping.
      Specified by:
      writeMarkup in class XMLWriterBase
      Parameters:
      text - markup text to be written
      Throws:
      IOException - if error writing to document
    • writeMarkup

      protected void writeMarkup(char chr) throws IOException
      Write markup character to output. Markup text can be written directly to the output without the need for any escaping.
      Specified by:
      writeMarkup in class XMLWriterBase
      Parameters:
      chr - markup character to be written
      Throws:
      IOException - if error writing to document
    • defineNamespace

      protected void defineNamespace(int index, String prefix)
      Report that namespace has been defined.
      Specified by:
      defineNamespace in class XMLWriterNamespaceBase
      Parameters:
      index - post-translation namespace URI index number
      prefix - prefix used for namespace
    • undefineNamespace

      protected void undefineNamespace(int index)
      Report that namespace has been undefined.
      Specified by:
      undefineNamespace in class XMLWriterNamespaceBase
      Parameters:
      index - post-translation namespace URI index number
    • writePrefix

      protected void writePrefix(int index) throws IOException
      Write namespace prefix to output. This internal method is used to handle translation of namespace indexes to internal form, and also to throw an exception when an undeclared prefix is used.
      Specified by:
      writePrefix in class XMLWriterBase
      Parameters:
      index - namespace URI index number
      Throws:
      IOException - if error writing to document
    • writeAttributeText

      protected void writeAttributeText(String text) throws IOException
      Write attribute text to output. This needs to write the text with any appropriate escaping.
      Specified by:
      writeAttributeText in class XMLWriterBase
      Parameters:
      text - attribute value text to be written
      Throws:
      IOException - if error writing to document
    • writeTextContent

      public void writeTextContent(String text) throws IOException
      Write ordinary character data text content to document. This needs to write the text with any appropriate escaping.
      Parameters:
      text - content value text
      Throws:
      IOException - on error writing to document
    • writeCData

      public void writeCData(String text) throws IOException
      Write CDATA text to document. This needs to write the text with any appropriate escaping.
      Parameters:
      text - content value text
      Throws:
      IOException - on error writing to document
    • indent

      public void indent(int bias) throws IOException
      Request output indent. Output the line end sequence followed by the appropriate number of indent characters.
      Specified by:
      indent in class XMLWriterBase
      Parameters:
      bias - indent depth difference (positive or negative) from current element nesting depth
      Throws:
      IOException - on error writing to document
    • indent

      public void indent() throws IOException
      Request output indent. Output the line end sequence followed by the appropriate number of indent characters for the current nesting level.
      Throws:
      IOException - on error writing to document
    • flush

      public void flush() throws IOException
      Flush document output. Forces out all output generated to this point.
      Specified by:
      flush in interface IXMLWriter
      Specified by:
      flush in class XMLWriterBase
      Throws:
      IOException - on error writing to document
    • close

      public void close() throws IOException
      Close document output. Completes writing of document output, including closing the output medium.
      Specified by:
      close in interface IXMLWriter
      Specified by:
      close in class XMLWriterBase
      Throws:
      IOException - on error writing to document
    • createChildWriter

      public IXMLWriter createChildWriter(String[] uris)
      Create a child writer instance to be used for a separate binding. The child writer inherits the stream and encoding from this writer, while using the supplied namespace URIs.
      Parameters:
      uris - ordered array of URIs for namespaces used in document (see GenericXMLWriter(String[]))
      Returns:
      child writer