Class LzssOutputStream

  • All Implemented Interfaces:
    java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

    public class LzssOutputStream
    extends java.io.OutputStream
    ?f?[?^?? LZSS???k???????? ?w???????? PostLzssEncoder ???o?????????k?p?o???X?g???[???B
     -- revision history --
     $Log: LzssOutputStream.java,v $
     Revision 1.2  2002/12/06 00:00:00  dangan
     [change]
         flush() ?? write() ???????S?????f?[?^?? 
         ???}?????? PostLzssEncoder ???o?????????????C???B
     [maintenance]
         slide???????? DictionarySize ?o?C?g?????????????C???B
    
     Revision 1.1  2002/10/20 00:00:00  dangan
     [bug fix]
         ?????????? flush() ?????? ?A?}?? flush() ??????
         ( lastsearchret ?? NEEDSEARCH ?????? encode() ???????????? )
         ?????? 1?o?C?g????????????B
         flush() ???? putLength() ???l??????????????????
         ?????@?\???j???????????? searchAndPut ???s????????????C???B
         flush() ???? TextBuffer ????????MaxMatch?o?C?g???f?[?^???o????????????????B
    
     Revision 1.0  2002/07/25 00:00:00  dangan
     add to version control
     [bug fix]
         getMatchLen() ?? searchret >> 22 ?????~?????}???? 
         searchret >>> 22 ????????????????C???B
     [maintenance]
         LhaUtil.createInstance() ???g?p??????
         ???????? Factory.createInstance() ???g?p?????B
         ?\?[?X????
         ?^?u?p?~
         ???C?Z???X????C??
    
     
    Version:
    $Revision: 1.2 $
    Author:
    $Author: dangan $
    • Field Summary

      Fields 
      Modifier and Type Field Description
      static int NOMATCH
      searchret ???}???l???????????A ???????????A???l?????????v???????????????????????????B
    • Constructor Summary

      Constructors 
      Constructor Description
      LzssOutputStream​(PostLzssEncoder encoder)
      write() ?????????????}???????f?[?^?? LZSS?????k???A???k?????f?[?^?? encoder???o?????? ?o???X?g???[?????\?z?????B
      LzssOutputStream​(PostLzssEncoder encoder, java.lang.String LzssSearchMethodClassName)
      write() ?????????????}???????f?[?^?? LZSS?????k???A???k?????f?[?^?? encoder???o?????? ?o???X?g???[?????\?z?????B
      LzssOutputStream​(PostLzssEncoder encoder, java.lang.String LzssSearchMethodClassName, java.lang.Object[] LzssSearchMethodExtraArguments)
      write() ?????????????}???????f?[?^?? LZSS?????k???A???k?????f?[?^?? encoder???o?????? ?o???X?g???[?????\?z?????B
    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()
      ?}???N???X?????????????S?????f?[?^?????}?????? PostLzssEncoder ???o???? ?}???o???X?g???[?????A ???}???????X?g???[????????A ?g?p??????????\?[?X???J???????B
      static int createSearchReturn​(int matchlen, int matchpos)
      search ???????l?????????B search ?????v???u?????????A???v?????????????????????? ?????????????????????A???v???u?????v?????K?v???r?b?g???? ??????}???????p???? int?^???????????????B ?????????????????????????????????????B ?}?????????????????l???? ???v???u?????v?????????o???????? getMatchLen?A getMatchPos ???g?p?????B
      void flush()
      ???k?@?\???????????????S?????f?[?^?? ???}?????? PostLzssEncoder ???o?????A ???}?????? PostLzssEncoder ?? flush() ?????B
      ?}???????A?o???????f?[?^???I?[?t?????? ?????? search() ???g?p???????????k??x???????????B ???? flush() ??????????????~?????k?????????????B ?}???? flush() ???????u?t???????f?[?^?p?^?????????? MaxMatch ??????????f?[?^?p?^?????g?p?????????A ???????????s???S???????????B ?}?????k???????????A?????????????k???????X?????????????????????A ?????????????????R?[?h?? LZ ???k???S???s??????B
      static int getMatchLen​(int searchret)
      createSearchReturn ?????????? search???????l???? ???v?????????o???B
      static int getMatchPos​(int searchret)
      createSearchReturn ?????????? search???????l???? ???v???u???????o???B
      void write​(byte[] buffer)
      ???k?@?\?? buffer ?????f?[?^???S???o???????B
      ??????PostLzssEncoder ???f?[?^???n?????????? TextBuffer ???????????????????A flush ???????I???o?????w?????????????B
      void write​(byte[] buffer, int index, int length)
      ???k?@?\?? buffer ???? index ???? length?o?C?g???f?[?^???o???????B
      ??????PostLzssEncoder ???f?[?^???n?????????? TextBuffer ???????????????????A flush ???????I???o?????w?????????????B
      void write​(int data)
      ???k?@?\??1?o?C?g???f?[?^???o???????B
      ??????PostLzssEncoder ???f?[?^???n?????????? TextBuffer ???????????????????A flush ???????I???o?????w?????????????B
      • Methods inherited from class java.io.OutputStream

        nullOutputStream
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • NOMATCH

        public static final int NOMATCH
        searchret ???}???l???????????A ???????????A???l?????????v???????????????????????????B
        See Also:
        Constant Field Values
    • Constructor Detail

      • LzssOutputStream

        public LzssOutputStream​(PostLzssEncoder encoder)
        write() ?????????????}???????f?[?^?? LZSS?????k???A???k?????f?[?^?? encoder???o?????? ?o???X?g???[?????\?z?????B
        Parameters:
        encoder - LZSS???k?f?[?^?o???X?g???[??
      • LzssOutputStream

        public LzssOutputStream​(PostLzssEncoder encoder,
                                java.lang.String LzssSearchMethodClassName)
        write() ?????????????}???????f?[?^?? LZSS?????k???A???k?????f?[?^?? encoder???o?????? ?o???X?g???[?????\?z?????B
        Parameters:
        encoder - LZSS???k?f?[?^?o???X?g???[??
        LzssSearchMethodClassName - LzssSearchMethod ?????????????p?b?P?[?W???????????N???X??
        Throws:
        java.lang.NoClassDefFoundError - LzssSearchMethodClassName ???^?????????N???X?? ????????????????B
        java.lang.InstantiationError - LzssSearchMethodClassName ???^?????????N???X?? abstract class ???????????C???X?^???X????????????????B
        java.lang.NoSuchMethodError - LzssSearchMethodClassName ???^?????????N???X?? ?R???X?g???N?^ LzssSearchMethod( int, int, int, byte[], int ) ?????????????
      • LzssOutputStream

        public LzssOutputStream​(PostLzssEncoder encoder,
                                java.lang.String LzssSearchMethodClassName,
                                java.lang.Object[] LzssSearchMethodExtraArguments)
        write() ?????????????}???????f?[?^?? LZSS?????k???A???k?????f?[?^?? encoder???o?????? ?o???X?g???[?????\?z?????B
        Parameters:
        encoder - LZSS???k?f?[?^?o???X?g???[??
        LzssSearchMethodClassName - LzssSearchMethod ?????????????p?b?P?[?W???????????N???X??
        Throws:
        java.lang.NoClassDefFoundError - LzssSearchMethodClassName ???^?????????N???X?? ????????????????B
        java.lang.InstantiationError - LzssSearchMethodClassName ???^?????????N???X?? abstract class ???????????C???X?^???X????????????????B
        java.lang.NoSuchMethodError - LzssSearchMethodClassName ???^?????????N???X?? ?R???X?g???N?^ LzssSearchMethod( int, int, int, byte[] ) ?????????????
    • Method Detail

      • write

        public void write​(int data)
                   throws java.io.IOException
        ???k?@?\??1?o?C?g???f?[?^???o???????B
        ??????PostLzssEncoder ???f?[?^???n?????????? TextBuffer ???????????????????A flush ???????I???o?????w?????????????B
        Specified by:
        write in class java.io.OutputStream
        Parameters:
        data - 1?o?C?g???f?[?^
        Throws:
        java.io.IOException - ???o???G???[?????????????
      • write

        public void write​(byte[] buffer)
                   throws java.io.IOException
        ???k?@?\?? buffer ?????f?[?^???S???o???????B
        ??????PostLzssEncoder ???f?[?^???n?????????? TextBuffer ???????????????????A flush ???????I???o?????w?????????????B
        Overrides:
        write in class java.io.OutputStream
        Parameters:
        buffer - ?f?[?^???i?[???????o?b?t?@
        Throws:
        java.io.IOException - ???o???G???[?????????????
      • write

        public void write​(byte[] buffer,
                          int index,
                          int length)
                   throws java.io.IOException
        ???k?@?\?? buffer ???? index ???? length?o?C?g???f?[?^???o???????B
        ??????PostLzssEncoder ???f?[?^???n?????????? TextBuffer ???????????????????A flush ???????I???o?????w?????????????B
        Overrides:
        write in class java.io.OutputStream
        Parameters:
        buffer - ?f?[?^???i?[???????o?b?t?@
        index - buffer???f?[?^?J?n???u
        length - buffer???f?[?^??????
        Throws:
        java.io.IOException - ???o???G???[?????????????
      • flush

        public void flush()
                   throws java.io.IOException
        ???k?@?\???????????????S?????f?[?^?? ???}?????? PostLzssEncoder ???o?????A ???}?????? PostLzssEncoder ?? flush() ?????B
        ?}???????A?o???????f?[?^???I?[?t?????? ?????? search() ???g?p???????????k??x???????????B ???? flush() ??????????????~?????k?????????????B ?}???? flush() ???????u?t???????f?[?^?p?^?????????? MaxMatch ??????????f?[?^?p?^?????g?p?????????A ???????????s???S???????????B ?}?????k???????????A?????????????k???????X?????????????????????A ?????????????????R?[?h?? LZ ???k???S???s??????B
          public void wrongCompress( InputStream in, LzssOutputSteam out ){
              int r;
              while( 0 <= r = in.read() ){
                  out.write( r );
                  out.flush();
              }
          }
         
        ?????A?}?????\?b?h?? PostLzssEncoder.flush() ???????o?????? flush() ??????????????~???A?o???f?[?^?????????????\?????????B
        Specified by:
        flush in interface java.io.Flushable
        Overrides:
        flush in class java.io.OutputStream
        Throws:
        java.io.IOException - ???o???G???[?????????????
        See Also:
        PostLzssEncoder.flush()
      • close

        public void close()
                   throws java.io.IOException
        ?}???N???X?????????????S?????f?[?^?????}?????? PostLzssEncoder ???o???? ?}???o???X?g???[?????A ???}???????X?g???[????????A ?g?p??????????\?[?X???J???????B
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Overrides:
        close in class java.io.OutputStream
        Throws:
        java.io.IOException - ???o???G???[?????????????
      • createSearchReturn

        public static final int createSearchReturn​(int matchlen,
                                                   int matchpos)
        search ???????l?????????B search ?????v???u?????????A???v?????????????????????? ?????????????????????A???v???u?????v?????K?v???r?b?g???? ??????}???????p???? int?^???????????????B ?????????????????????????????????????B ?}?????????????????l???? ???v???u?????v?????????o???????? getMatchLen?A getMatchPos ???g?p?????B
        Parameters:
        matchlen - ???v??
        matchpos - ???v???u
        Returns:
        ???v???????v???u????????????search???????l
      • getMatchLen

        public static final int getMatchLen​(int searchret)
        createSearchReturn ?????????? search???????l???? ???v?????????o???B
        Parameters:
        searchret - search ???????l
        Returns:
        ???v??
      • getMatchPos

        public static final int getMatchPos​(int searchret)
        createSearchReturn ?????????? search???????l???? ???v???u???????o???B
        Parameters:
        searchret - search ???????l
        Returns:
        ???v???u