Package org.apache.commons.io.input

Class BrokenReader

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable, java.lang.Readable
    public class BrokenReader
extends java.io.Reader
    Always throws an IOException from all the Reader methods where the exception is declared.

    This class is mostly useful for testing error handling.

    Since:
    2.7

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static BrokenReader INSTANCE
      A singleton instance using a default IOException.

    • Constructor Summary

      Constructors 
      Constructor Description
      BrokenReader()
      Creates a new reader that always throws an IOException.
      BrokenReader​(java.io.IOException exception)
      Creates a new reader that always throws the given exception.
      BrokenReader​(java.util.function.Supplier<java.io.IOException> exceptionSupplier)
      Creates a new reader that always throws an IOException

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()
      Throws the configured exception.
      void mark​(int readAheadLimit)
      Throws the configured exception.
      int read​(char[] cbuf, int off, int len)
      Throws the configured exception.
      boolean ready()
      Throws the configured exception.
      void reset()
      Throws the configured exception.
      long skip​(long n)
      Throws the configured exception.

      • Methods inherited from class java.io.Reader

        markSupported, nullReader, read, read, read, transferTo

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • INSTANCE

        public static final BrokenReader INSTANCE
        A singleton instance using a default IOException.
        Since:
        2.12.0

    • Constructor Detail

      • BrokenReader

        public BrokenReader()
        Creates a new reader that always throws an IOException.

      • BrokenReader

        public BrokenReader​(java.io.IOException exception)
        Creates a new reader that always throws the given exception.
        Parameters:
        exception - the exception to be thrown.

      • BrokenReader

        public BrokenReader​(java.util.function.Supplier<java.io.IOException> exceptionSupplier)
        Creates a new reader that always throws an IOException
        Parameters:
        exceptionSupplier - a supplier for the exception to be thrown.
        Since:
        2.12.0

    • Method Detail

      • close

        public void close()
           throws java.io.IOException
        Throws the configured exception.
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Specified by:
        close in class java.io.Reader
        Throws:
        java.io.IOException - always thrown

      • mark

        public void mark​(int readAheadLimit)
          throws java.io.IOException
        Throws the configured exception.
        Overrides:
        mark in class java.io.Reader
        Parameters:
        readAheadLimit - ignored
        Throws:
        java.io.IOException - always thrown

      • read

        public int read​(char[] cbuf,
                int off,
                int len)
         throws java.io.IOException
        Throws the configured exception.
        Specified by:
        read in class java.io.Reader
        Parameters:
        cbuf - ignored
        off - ignored
        len - ignored
        Returns:
        nothing
        Throws:
        java.io.IOException - always thrown

      • ready

        public boolean ready()
              throws java.io.IOException
        Throws the configured exception.
        Overrides:
        ready in class java.io.Reader
        Returns:
        nothing
        Throws:
        java.io.IOException - always thrown

      • reset

        public void reset()
           throws java.io.IOException
        Throws the configured exception.
        Overrides:
        reset in class java.io.Reader
        Throws:
        java.io.IOException - always thrown

      • skip

        public long skip​(long n)
          throws java.io.IOException
        Throws the configured exception.
        Overrides:
        skip in class java.io.Reader
        Parameters:
        n - ignored
        Returns:
        nothing
        Throws:
        java.io.IOException - always thrown