Package com.aowagie.text.pdf

Class OutputStreamEncryption

  • All Implemented Interfaces:
    java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable
    class OutputStreamEncryption
extends java.io.OutputStream

    • Constructor Summary

      Constructors 
      Constructor Description
      OutputStreamEncryption​(java.io.OutputStream out, byte[] key, int off, int len, int revision)
      Creates a new instance of OutputStreamCounter

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()
      Closes this output stream and releases any system resources associated with this stream.
      (package private) void finish()  
      void flush()
      Flushes this output stream and forces any buffered output bytes to be written out.
      void write​(byte[] b)
      Writes b.length bytes from the specified byte array to this output stream.
      void write​(byte[] b, int off, int len)
      Writes len bytes from the specified byte array starting at offset off to this output stream.
      void write​(int b)
      Writes the specified byte to this output stream.

      • Methods inherited from class java.io.OutputStream

        nullOutputStream

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • out

        private java.io.OutputStream out

      • sb

        private final byte[] sb

      • aes

        private boolean aes

      • finished

        private boolean finished

    • Constructor Detail

      • OutputStreamEncryption

        OutputStreamEncryption​(java.io.OutputStream out,
                       byte[] key,
                       int off,
                       int len,
                       int revision)
        Creates a new instance of OutputStreamCounter

    • Method Detail

      • close

        public void close()
           throws java.io.IOException
        Closes this output stream and releases any system resources associated with this stream. The general contract of close is that it closes the output stream. A closed stream cannot perform output operations and cannot be reopened.

        The close method of OutputStream does nothing.

        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Overrides:
        close in class java.io.OutputStream
        Throws:
        java.io.IOException - if an I/O error occurs.

      • flush

        public void flush()
           throws java.io.IOException
        Flushes this output stream and forces any buffered output bytes to be written out. The general contract of flush is that calling it is an indication that, if any bytes previously written have been buffered by the implementation of the output stream, such bytes should immediately be written to their intended destination.

        The flush method of OutputStream does nothing.

        Specified by:
        flush in interface java.io.Flushable
        Overrides:
        flush in class java.io.OutputStream
        Throws:
        java.io.IOException - if an I/O error occurs.

      • write

        public void write​(byte[] b)
           throws java.io.IOException
        Writes b.length bytes from the specified byte array to this output stream. The general contract for write(b) is that it should have exactly the same effect as the call write(b, 0, b.length).
        Overrides:
        write in class java.io.OutputStream
        Parameters:
        b - the data.
        Throws:
        java.io.IOException - if an I/O error occurs.
        See Also:
        OutputStream.write(byte[], int, int)

      • write

        public void write​(int b)
           throws java.io.IOException
        Writes the specified byte to this output stream. The general contract for write is that one byte is written to the output stream. The byte to be written is the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.

        Subclasses of OutputStream must provide an implementation for this method.

        Specified by:
        write in class java.io.OutputStream
        Parameters:
        b - the byte.
        Throws:
        java.io.IOException - if an I/O error occurs. In particular, an IOException may be thrown if the output stream has been closed.

      • write

        public void write​(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException
        Writes len bytes from the specified byte array starting at offset off to this output stream. The general contract for write(b, off, len) is that some of the bytes in the array b are written to the output stream in order; element b[off] is the first byte written and b[off+len-1] is the last byte written by this operation.

        The write method of OutputStream calls the write method of one argument on each of the bytes to be written out. Subclasses are encouraged to override this method and provide a more efficient implementation.

        If b is null, a NullPointerException is thrown.

        If off is negative, or len is negative, or off+len is greater than the length of the array b, then an IndexOutOfBoundsException is thrown.

        Overrides:
        write in class java.io.OutputStream
        Parameters:
        b - the data.
        off - the start offset in the data.
        len - the number of bytes to write.
        Throws:
        java.io.IOException - if an I/O error occurs. In particular, an IOException is thrown if the output stream is closed.

      • finish

        void finish()
     throws java.io.IOException
        Throws:
        java.io.IOException