Package org.apache.commons.vfs2.provider

Class AbstractRandomAccessStreamContent

java.lang.Object

org.apache.commons.vfs2.provider.AbstractRandomAccessContent

org.apache.commons.vfs2.provider.AbstractRandomAccessStreamContent

All Implemented Interfaces:

Closeable, DataInput, DataOutput, AutoCloseable, RandomAccessContent

public abstract class AbstractRandomAccessStreamContent
extends AbstractRandomAccessContent

Implements the part usable for all stream-based random access.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractRandomAccessStreamContent(RandomAccessMode mode)	Constructs a new instance for subclasses.

Method Summary

Modifier and Type	Method	Description
protected abstract DataInputStream	getDataInputStream()	Gets a DataInputStream.
InputStream	getInputStream()	Gets the input stream.
boolean	readBoolean()
byte	readByte()
char	readChar()
double	readDouble()
float	readFloat()
void	readFully(byte[] b)
void	readFully(byte[] b, int off, int len)
int	readInt()
long	readLong()
short	readShort()
int	readUnsignedByte()
int	readUnsignedShort()
String	readUTF()
void	setLength(long newLength)	Sets the length of this content.
int	skipBytes(int n)

Methods inherited from class org.apache.commons.vfs2.provider.AbstractRandomAccessContent

readLine, write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.vfs2.RandomAccessContent

close, getFilePointer, length, seek

Constructor Details

AbstractRandomAccessStreamContent

protected AbstractRandomAccessStreamContent(RandomAccessMode mode)

Constructs a new instance for subclasses.

Parameters:

mode - the RandomAccessMode.

Method Details

getDataInputStream

protected abstract DataInputStream getDataInputStream()
                                               throws IOException

Gets a DataInputStream.

Returns:

a DataInputStream.

Throws:

IOException - if an IO error occurs.

getInputStream

public InputStream getInputStream()
                           throws IOException

Description copied from interface: RandomAccessContent

Gets the input stream.

Notice: If you use RandomAccessContent.seek(long) you have to re-get the InputStream

Returns:

the InputStream.

Throws:

IOException - if an I/O error occurs.

readBoolean

public boolean readBoolean()
                    throws IOException

Throws:

IOException

readByte

public byte readByte()
              throws IOException

Throws:

IOException

readChar

public char readChar()
              throws IOException

Throws:

IOException

readDouble

public double readDouble()
                  throws IOException

Throws:

IOException

readFloat

public float readFloat()
                throws IOException

Throws:

IOException

readFully

public void readFully(byte[] b)
               throws IOException

Throws:

IOException

readFully

public void readFully(byte[] b,
 int off,
 int len)
               throws IOException

Throws:

IOException

readInt

public int readInt()
            throws IOException

Throws:

IOException

readLong

public long readLong()
              throws IOException

Throws:

IOException

readShort

public short readShort()
                throws IOException

Throws:

IOException

readUnsignedByte

public int readUnsignedByte()
                     throws IOException

Throws:

IOException

readUnsignedShort

public int readUnsignedShort()
                      throws IOException

Throws:

IOException

readUTF

public String readUTF()
               throws IOException

Throws:

IOException

setLength

public void setLength(long newLength)
               throws IOException

Description copied from interface: RandomAccessContent

Sets the length of this content.

If the newLength argument is smaller than RandomAccessContent.length(), the content is truncated.

If the newLength argument is greater than RandomAccessContent.length(), the content grows with undefined data.

Parameters:

newLength - The desired content length

Throws:

IOException - If an I/O error occurs

skipBytes

public int skipBytes(int n)
              throws IOException

Throws:

IOException