Class CountingInputStream

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable
    Direct Known Subclasses:
    ZipFile.StoredStatisticsStream

    public class CountingInputStream
    extends java.io.FilterInputStream
    Stream that tracks the number of bytes read.
    Since:
    1.3
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private long bytesRead  
      • Fields inherited from class java.io.FilterInputStream

        in
    • Constructor Summary

      Constructors 
      Constructor Description
      CountingInputStream​(java.io.InputStream in)  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      protected void count​(long read)
      Increments the counter of already read bytes.
      long getBytesRead()
      Returns the current number of bytes read from this stream.
      int read()  
      int read​(byte[] b)  
      int read​(byte[] b, int off, int len)  
      • Methods inherited from class java.io.FilterInputStream

        available, close, mark, markSupported, reset, skip
      • Methods inherited from class java.io.InputStream

        nullInputStream, readAllBytes, readNBytes, readNBytes, transferTo
      • Methods inherited from class java.lang.Object

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

      • bytesRead

        private long bytesRead
    • Constructor Detail

      • CountingInputStream

        public CountingInputStream​(java.io.InputStream in)
    • Method Detail

      • read

        public int read()
                 throws java.io.IOException
        Overrides:
        read in class java.io.FilterInputStream
        Throws:
        java.io.IOException
      • read

        public int read​(byte[] b)
                 throws java.io.IOException
        Overrides:
        read in class java.io.FilterInputStream
        Throws:
        java.io.IOException
      • read

        public int read​(byte[] b,
                        int off,
                        int len)
                 throws java.io.IOException
        Overrides:
        read in class java.io.FilterInputStream
        Throws:
        java.io.IOException
      • count

        protected final void count​(long read)
        Increments the counter of already read bytes. Doesn't increment if the EOF has been hit (read == -1)
        Parameters:
        read - the number of bytes read
      • getBytesRead

        public long getBytesRead()
        Returns the current number of bytes read from this stream.
        Returns:
        the number of read bytes