Package org.apache.pdfbox.filter

Class ASCII85InputStream

java.lang.Object
java.io.InputStream
java.io.FilterInputStream
org.apache.pdfbox.filter.ASCII85InputStream
All Implemented Interfaces:
Closeable, AutoCloseable
final class ASCII85InputStream extends FilterInputStream
This class represents an ASCII85 stream.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private byte[]
    ascii
     
    private byte[]
    b
     
    private boolean
    eof
     
    private int
    index
     
    private int
    n
     
    private static final char
    NEWLINE
     
    private static final char
    OFFSET
     
    private static final char
    PADDING_U
     
    private static final char
    RETURN
     
    private static final char
    SPACE
     
    private static final char
    TERMINATOR
     
    private static final char
    Z
     

    Fields inherited from class java.io.FilterInputStream

    in

  • Constructor Summary

    Constructors
    Constructor
    Description
    ASCII85InputStream(InputStream is)
    Constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    available()
    Unsupported.
    void
    close()
    This will close the underlying stream and release any resources.
    void
    mark(int readlimit)
    Unsupported.
    boolean
    markSupported()
    non supported interface methods.
    int
    read()
    This will read the next byte from the stream.
    int
    read(byte[] data, int offset, int len)
    This will read a chunk of data.
    void
    reset()
    Unsupported.
    long
    skip(long nValue)
    Unsupported.

    Methods inherited from class java.io.FilterInputStream

    read

    Methods inherited from class java.lang.Object

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

  • Field Details

  • Constructor Details

    • ASCII85InputStream

      ASCII85InputStream(InputStream is)
      Constructor.
      Parameters:
      is - The input stream to actually read from.

  • Method Details

    • read

      public int read() throws IOException
      This will read the next byte from the stream.
      Overrides:
      read in class FilterInputStream
      Returns:
      The next byte read from the stream.
      Throws:
      IOException - If there is an error reading from the wrapped stream.

    • read

      public int read(byte[] data, int offset, int len) throws IOException
      This will read a chunk of data.
      Overrides:
      read in class FilterInputStream
      Parameters:
      data - The buffer to write data to.
      offset - The offset into the data stream.
      len - The number of byte to attempt to read.
      Returns:
      The number of bytes actually read.
      Throws:
      IOException - If there is an error reading data from the underlying stream.

    • close

      public void close() throws IOException
      This will close the underlying stream and release any resources.
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface Closeable
      Overrides:
      close in class FilterInputStream
      Throws:
      IOException - If there is an error closing the underlying stream.

    • markSupported

      public boolean markSupported()
      non supported interface methods.
      Overrides:
      markSupported in class FilterInputStream
      Returns:
      False always.

    • skip

      public long skip(long nValue)
      Unsupported.
      Overrides:
      skip in class FilterInputStream
      Parameters:
      nValue - ignored.
      Returns:
      Always zero.

    • available

      public int available()
      Unsupported.
      Overrides:
      available in class FilterInputStream
      Returns:
      Always zero.

    • mark

      public void mark(int readlimit)
      Unsupported.
      Overrides:
      mark in class FilterInputStream
      Parameters:
      readlimit - ignored.

    • reset

      public void reset() throws IOException
      Unsupported.
      Overrides:
      reset in class FilterInputStream
      Throws:
      IOException - telling that this is an unsupported action.