Package nxt.util

Class CountingInputReader

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable, java.lang.Readable
    public class CountingInputReader
extends java.io.FilterReader
    CountingInputReader extends Reader to count the number of characters read

    • Field Summary

      • Fields inherited from class java.io.FilterReader

        in

      • Fields inherited from class java.io.Reader

        lock

    • Constructor Summary

      Constructors 
      Constructor Description
      CountingInputReader​(java.io.Reader reader, long limit)
      Create a CountingInputReader for the supplied Reader

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      long getCount()
      Return the total number of characters read
      int read()
      Read a single character
      int read​(char[] cbuf)
      Read characters into an array
      int read​(char[] cbuf, int off, int len)
      Read characters into an arry starting at the specified offset
      long skip​(long n)
      Skip characters in the input stream

      • Methods inherited from class java.io.FilterReader

        close, mark, markSupported, ready, reset

      • Methods inherited from class java.io.Reader

        nullReader, read, transferTo

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • CountingInputReader

        public CountingInputReader​(java.io.Reader reader,
                           long limit)
        Create a CountingInputReader for the supplied Reader
        Parameters:
        reader - Input reader
        limit - Maximum number of characters to be read

    • Method Detail

      • read

        public int read()
         throws java.io.IOException
        Read a single character
        Overrides:
        read in class java.io.FilterReader
        Returns:
        Character or -1 if end of stream reached
        Throws:
        java.io.IOException - I/O error occurred

      • read

        public int read​(char[] cbuf)
         throws java.io.IOException
        Read characters into an array
        Overrides:
        read in class java.io.Reader
        Parameters:
        cbuf - Character array
        Returns:
        Number of characters read or -1 if end of stream reached
        Throws:
        java.io.IOException - I/O error occurred

      • read

        public int read​(char[] cbuf,
                int off,
                int len)
         throws java.io.IOException
        Read characters into an arry starting at the specified offset
        Overrides:
        read in class java.io.FilterReader
        Parameters:
        cbuf - Character array
        off - Starting offset
        len - Number of characters to be read
        Returns:
        Number of characters read or -1 if end of stream reached
        Throws:
        java.io.IOException - I/O error occurred

      • skip

        public long skip​(long n)
          throws java.io.IOException
        Skip characters in the input stream
        Overrides:
        skip in class java.io.FilterReader
        Parameters:
        n - Number of characters to skip
        Returns:
        Number of characters skipped or -1 if end of stream reached
        Throws:
        java.io.IOException - I/O error occurred

      • getCount

        public long getCount()
        Return the total number of characters read
        Returns:
        Character count