Package com.jalios.io

Class SizeLimitInputStream

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable
    public class SizeLimitInputStream
extends java.io.FilterInputStream
    InputStream Filter that will throw an SizeLimitExceededException if the wrapped stream exceed the byte count specified in constructor.

    • Field Summary

      • Fields inherited from class java.io.FilterInputStream

        in

    • Constructor Summary

      Constructors 
      Constructor Description
      SizeLimitInputStream​(java.io.InputStream in, long limit)
      Constructs a new SizeLimitInputStreamFilter.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int read()
      Reads the next byte of data adding to the count of bytes received if a byte is successfully read.
      int read​(byte[] b)
      Reads a number of bytes into the byte array, keeping count of the number read.
      int read​(byte[] b, int off, int len)
      Reads a number of bytes into the byte array at a specific offset, keeping count of the number read.
      long skip​(long length)
      Skips the stream over the specified number of bytes, adding the skipped amount to the count.

      • Methods inherited from class java.io.FilterInputStream

        available, close, mark, markSupported, reset

      • 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

    • Constructor Detail

      • SizeLimitInputStream

        public SizeLimitInputStream​(java.io.InputStream in,
                            long limit)
        Constructs a new SizeLimitInputStreamFilter.
        Parameters:
        in - the InputStream to delegate to
        limit - the number of bytes accepted by the filter before throwing an exception

    • Method Detail

      • read

        public int read​(byte[] b)
         throws java.io.IOException
        Reads a number of bytes into the byte array, keeping count of the number read.
        Overrides:
        read in class java.io.FilterInputStream
        Parameters:
        b - the buffer into which the data is read, not null
        Returns:
        the total number of bytes read into the buffer, -1 if end of stream
        Throws:
        java.io.IOException - if an I/O error occurs
        See Also:
        InputStream.read(byte[])

      • read

        public int read​(byte[] b,
                int off,
                int len)
         throws java.io.IOException
        Reads a number of bytes into the byte array at a specific offset, keeping count of the number read.
        Overrides:
        read in class java.io.FilterInputStream
        Parameters:
        b - the buffer into which the data is read, not null
        off - the start offset in the buffer
        len - the maximum number of bytes to read
        Returns:
        the total number of bytes read into the buffer, -1 if end of stream
        Throws:
        java.io.IOException - if an I/O error occurs
        See Also:
        InputStream.read(byte[], int, int)

      • read

        public int read()
         throws java.io.IOException
        Reads the next byte of data adding to the count of bytes received if a byte is successfully read.
        Overrides:
        read in class java.io.FilterInputStream
        Returns:
        the byte read, -1 if end of stream
        Throws:
        java.io.IOException - if an I/O error occurs
        See Also:
        InputStream.read()

      • skip

        public long skip​(long length)
          throws java.io.IOException
        Skips the stream over the specified number of bytes, adding the skipped amount to the count.
        Overrides:
        skip in class java.io.FilterInputStream
        Parameters:
        length - the number of bytes to skip
        Returns:
        the actual number of bytes skipped
        Throws:
        java.io.IOException - if an I/O error occurs
        See Also:
        InputStream.skip(long)