Class PrefixedWriter

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

    class PrefixedWriter
    extends java.io.Writer
    Prefixes every new line with a given byte [], synchronizing multiple streams to emit consistent lines.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static char LF  
      private java.lang.StringBuilder lineBuffer  
      private int maxLineLength  
      private java.lang.String prefix  
      private java.io.Writer sink  
      • Fields inherited from class java.io.Writer

        lock
    • Constructor Summary

      Constructors 
      Constructor Description
      PrefixedWriter​(java.lang.String prefix, java.io.Writer sink, int maxLineLength)  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()  
      void completeLine()
      Complete the current line (emit LF if not at the start of the line already).
      void flush()  
      void write​(char[] cbuf, int off, int len)  
      void write​(int c)  
      • Methods inherited from class java.io.Writer

        append, append, append, write, write, write
      • Methods inherited from class java.lang.Object

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

      • sink

        private final java.io.Writer sink
      • prefix

        private final java.lang.String prefix
      • lineBuffer

        private final java.lang.StringBuilder lineBuffer
      • maxLineLength

        private final int maxLineLength
    • Constructor Detail

      • PrefixedWriter

        public PrefixedWriter​(java.lang.String prefix,
                              java.io.Writer sink,
                              int maxLineLength)
    • Method Detail

      • write

        public void write​(int c)
                   throws java.io.IOException
        Overrides:
        write in class java.io.Writer
        Throws:
        java.io.IOException
      • write

        public void write​(char[] cbuf,
                          int off,
                          int len)
                   throws java.io.IOException
        Specified by:
        write in class java.io.Writer
        Throws:
        java.io.IOException
      • flush

        public void flush()
                   throws java.io.IOException
        Specified by:
        flush in interface java.io.Flushable
        Specified by:
        flush in class java.io.Writer
        Throws:
        java.io.IOException
      • close

        public void close()
                   throws java.io.IOException
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Specified by:
        close in class java.io.Writer
        Throws:
        java.io.IOException
      • completeLine

        public void completeLine()
                          throws java.io.IOException
        Complete the current line (emit LF if not at the start of the line already).
        Throws:
        java.io.IOException