com.adobe.internal.io

Class ExtendedDataInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.io.DataInputStream

com.adobe.internal.io.ExtendedDataInputStream

All Implemented Interfaces:

Closeable, DataInput, AutoCloseable

public class ExtendedDataInputStream
extends DataInputStream

An extension of the DataInputStream providing more operations.

Constructor Summary

Constructors

Constructor and Description
ExtendedDataInputStream(InputStream in) Constructor.

Method Summary

Modifier and Type	Method and Description
int	readUnsigned3ByteInt() Read an unsigned integer from the contained input stream.
long	readUnsignedInt() Read an unsigned integer from the contained input stream.
void	skipFully(long n) Skips over and discards n bytes of data from the input stream.

Methods inherited from class java.io.DataInputStream

read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, readUTF, skipBytes

Methods inherited from class java.io.FilterInputStream

available, close, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtendedDataInputStream

public ExtendedDataInputStream(InputStream in)

Constructor.

Parameters:

in - the stream to wrap

Method Detail

readUnsignedInt

public long readUnsignedInt()
                     throws IOException

Read an unsigned integer from the contained input stream.

Returns:

the next four bytes of this input stream, interpreted as an unsigned 32-bit integer

Throws:

IOException - if an I/O error occurs

EOFException - if this input stream reaches the end before reading four bytes

readUnsigned3ByteInt

public int readUnsigned3ByteInt()
                         throws IOException

Read an unsigned integer from the contained input stream.

Returns:

the next three bytes of this input stream, interpreted as an unsigned 24-bit integer

Throws:

IOException - if an I/O error occurs

EOFException - if this input stream reaches the end before reading three bytes

skipFully

public void skipFully(long n)
               throws IOException

Skips over and discards n bytes of data from the input stream. This method attempts to fully skip the number of bytes specified.

Parameters:

n - the number of bytes to be skipped

Throws:

IOException - if an I/O error occurs

EOFException - if this input stream reaches the end before skipping the given number of bytes