Class BlockUnmarshaller

java.lang.Object

org.jboss.marshalling.river.BlockUnmarshaller

All Implemented Interfaces:

Closeable, DataInput, ObjectInput, AutoCloseable, ByteInput, Unmarshaller

public final class BlockUnmarshaller
extends Object
implements Unmarshaller

Field Summary

Fields

Modifier and Type	Field	Description
private int	remaining
private final RiverUnmarshaller	riverUnmarshaller

Constructor Summary

Constructors

Constructor	Description
BlockUnmarshaller(RiverUnmarshaller riverUnmarshaller)

Method Summary

Modifier and Type	Method	Description
int	available()	Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream.
private StreamCorruptedException	badLeadByte(int leadByte)
void	clearClassCache()	Discard the class cache.
void	clearInstanceCache()	Discard the instance cache.
void	close()
(package private) void	endOfStream()
void	finish()	Finish unmarshalling from a stream.
(package private) boolean	inBlock()
int	read()	Reads the next byte of data from the input stream.
int	read(byte[] b)	Read some bytes from the input stream into the given array.
int	read(byte[] b, int off, int len)	Read some bytes from the input stream into the given array.
(package private) void	readBlockHeader(int leadByte)
boolean	readBoolean()
byte	readByte()
char	readChar()
double	readDouble()
float	readFloat()
void	readFully(byte[] b)
void	readFully(byte[] b, int off, int len)
int	readInt()
String	readLine()
long	readLong()
Object	readObject()
private Object	readObject(boolean unshared)
<T> T	readObject(Class<T> type)	Read and return an object, cast to a specific type.
Object	readObjectUnshared()	Read and return an unshared object.
<T> T	readObjectUnshared(Class<T> type)	Read and return an unshared object, cast to a specific type.
short	readShort()
(package private) void	readToEndBlockData()
int	readUnsignedByte()
int	readUnsignedShort()
String	readUTF()
(package private) int	remaining()
(package private) void	restore(int remaining)
long	skip(long n)	Skips over and discards up to n bytes of data from this input stream.
int	skipBytes(int n)
void	start(ByteInput newInput)	Begin unmarshalling from a stream.
(package private) int	tempEndOfStream()
(package private) void	unblock()
private static InvalidObjectException	wrongType(ClassCastException e, Class<?> expected, Class<?> actual)

Methods inherited from class Object

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

Field Details

riverUnmarshaller

private final RiverUnmarshaller riverUnmarshaller

remaining

private int remaining

Constructor Details

BlockUnmarshaller

BlockUnmarshaller(RiverUnmarshaller riverUnmarshaller)

Method Details

inBlock

boolean inBlock()

remaining

int remaining()

endOfStream

void endOfStream()

tempEndOfStream

int tempEndOfStream()

restore

void restore(int remaining)

unblock

void unblock()

readBlockHeader

void readBlockHeader(int leadByte)
              throws IOException

Throws:

IOException

readToEndBlockData

void readToEndBlockData()
                 throws IOException,
ClassNotFoundException

Throws:

IOException

ClassNotFoundException

badLeadByte

private StreamCorruptedException badLeadByte(int leadByte)

readObjectUnshared

public Object readObjectUnshared()
                          throws ClassNotFoundException,
IOException

Description copied from interface: Unmarshaller

Read and return an unshared object.

Specified by:

readObjectUnshared in interface Unmarshaller

Returns:

an unshared object

Throws:

ClassNotFoundException - if the class of a serialized object cannot be found

IOException - if an error occurs

readObject

public Object readObject()
                  throws ClassNotFoundException,
IOException

Specified by:

readObject in interface ObjectInput

Throws:

ClassNotFoundException

IOException

readObject

private Object readObject(boolean unshared)
                   throws ClassNotFoundException,
IOException

Throws:

ClassNotFoundException

IOException

read

public int read()
         throws IOException

Description copied from interface: ByteInput

Reads the next byte of data from the input stream. If no byte is available because the end of the stream has been reached, the value -1 is returned. This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

Specified by:

read in interface ByteInput

Specified by:

read in interface ObjectInput

Returns:

the next byte, or -1 if the end of stream has been reached

Throws:

IOException - if an error occurs

read

public int read(byte[] b)
         throws IOException

Description copied from interface: ByteInput

Read some bytes from the input stream into the given array. Returns the number of bytes actually read (possibly zero), or -1 if the end of stream has been reached.

Specified by:

read in interface ByteInput

Specified by:

read in interface ObjectInput

Parameters:

b - the destination array

Returns:

the number of bytes read (possibly zero), or -1 if the end of stream has been reached

Throws:

IOException - if an error occurs

read

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

Description copied from interface: ByteInput

Read some bytes from the input stream into the given array. Returns the number of bytes actually read (possibly zero), or -1 if the end of stream has been reached.

Specified by:

read in interface ByteInput

Specified by:

read in interface ObjectInput

Parameters:

b - the destination array

off - the offset into the array into which data should be read

len - the number of bytes to attempt to fill in the destination array

Returns:

the number of bytes read (possibly zero), or -1 if the end of stream has been reached

Throws:

IOException - if an error occurs

skip

public long skip(long n)
          throws IOException

Description copied from interface: ByteInput

Skips over and discards up to n bytes of data from this input stream. If the end of stream is reached, this method returns 0 in order to be consistent with InputStream.skip(long).

Specified by:

skip in interface ByteInput

Specified by:

skip in interface ObjectInput

Parameters:

n - the number of bytes to attempt to skip

Returns:

the number of bytes skipped

Throws:

IOException - if an error occurs

available

public int available()
              throws IOException

Description copied from interface: ByteInput

Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream.

Specified by:

available in interface ByteInput

Specified by:

available in interface ObjectInput

Returns:

the number of bytes

Throws:

IOException - if an error occurs

readFully

public void readFully(byte[] b)
               throws IOException

Specified by:

readFully in interface DataInput

Throws:

IOException

readFully

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

Specified by:

readFully in interface DataInput

Throws:

IOException

skipBytes

public int skipBytes(int n)
              throws IOException

Specified by:

skipBytes in interface DataInput

Throws:

IOException

readBoolean

public boolean readBoolean()
                    throws IOException

Specified by:

readBoolean in interface DataInput

Throws:

IOException

readByte

public byte readByte()
              throws IOException

Specified by:

readByte in interface DataInput

Throws:

IOException

readUnsignedByte

public int readUnsignedByte()
                     throws IOException

Specified by:

readUnsignedByte in interface DataInput

Throws:

IOException

readShort

public short readShort()
                throws IOException

Specified by:

readShort in interface DataInput

Throws:

IOException

readUnsignedShort

public int readUnsignedShort()
                      throws IOException

Specified by:

readUnsignedShort in interface DataInput

Throws:

IOException

readChar

public char readChar()
              throws IOException

Specified by:

readChar in interface DataInput

Throws:

IOException

readInt

public int readInt()
            throws IOException

Specified by:

readInt in interface DataInput

Throws:

IOException

readLong

public long readLong()
              throws IOException

Specified by:

readLong in interface DataInput

Throws:

IOException

readFloat

public float readFloat()
                throws IOException

Specified by:

readFloat in interface DataInput

Throws:

IOException

readDouble

public double readDouble()
                  throws IOException

Specified by:

readDouble in interface DataInput

Throws:

IOException

readLine

public String readLine()
                throws IOException

Specified by:

readLine in interface DataInput

Throws:

IOException

readUTF

public String readUTF()
               throws IOException

Specified by:

readUTF in interface DataInput

Throws:

IOException

clearInstanceCache

public void clearInstanceCache()
                        throws IOException

Description copied from interface: Unmarshaller

Discard the instance cache.

Specified by:

clearInstanceCache in interface Unmarshaller

Throws:

IOException - if an error occurs

clearClassCache

public void clearClassCache()
                     throws IOException

Description copied from interface: Unmarshaller

Discard the class cache. Implicitly also discards the instance cache.

Specified by:

clearClassCache in interface Unmarshaller

Throws:

IOException - if an error occurs

start

public void start(ByteInput newInput)
           throws IOException

Description copied from interface: Unmarshaller

Begin unmarshalling from a stream.

Specified by:

start in interface Unmarshaller

Parameters:

newInput - the new stream

Throws:

IOException - if an error occurs during setup, such as an invalid header

finish

public void finish()
            throws IOException

Description copied from interface: Unmarshaller

Finish unmarshalling from a stream. Any transient class or instance cache is discarded.

Specified by:

finish in interface Unmarshaller

Throws:

IOException - if an error occurs

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface ObjectInput

Throws:

IOException

readObject

public <T> T readObject(Class<T> type)
                 throws ClassNotFoundException,
IOException

Description copied from interface: Unmarshaller

Read and return an object, cast to a specific type.

Specified by:

readObject in interface Unmarshaller

Type Parameters:

T - the object type

Parameters:

type - the object class

Returns:

the object read from the stream

Throws:

ClassNotFoundException - if the class of a serialized object cannot be found

IOException - if an error occurs

readObjectUnshared

public <T> T readObjectUnshared(Class<T> type)
                         throws ClassNotFoundException,
IOException

Description copied from interface: Unmarshaller

Read and return an unshared object, cast to a specific type.

Specified by:

readObjectUnshared in interface Unmarshaller

Type Parameters:

T - the object type

Parameters:

type - the object class

Returns:

an unshared object

Throws:

ClassNotFoundException - if the class of a serialized object cannot be found

IOException - if an error occurs

wrongType

private static InvalidObjectException wrongType(ClassCastException e,
 Class<?> expected,
 Class<?> actual)