Package io.deephaven.io.streams

Class ByteBufferInputStream

java.lang.Object

java.io.InputStream

io.deephaven.io.streams.ByteBufferInputStream

All Implemented Interfaces:

Closeable, DataInput, AutoCloseable

public class ByteBufferInputStream
extends InputStream
implements DataInput

This is an InputStream implementation which reads from a java.nio.ByteBuffer. If a read operation crosses the end of the buffer, the BufferUnderflowException is converted to an EOFException. The stream contains no state other than that in in the buffer itself, so the buffer can be exchanged at will with the setBuffer() method.

Field Summary

Fields

Modifier and Type	Field	Description
protected ByteBuffer	buf	the buffer from which we read

Constructor Summary

Constructors

Constructor	Description
ByteBufferInputStream(ByteBuffer buf)	Construct a new stream which reads from a byte buffer/

Method Summary

Modifier and Type	Method	Description
int	available()
void	close()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	read(ByteBuffer dest, int length)
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()
short	readShort()
int	readUnsignedByte()
int	readUnsignedShort()
String	readUTF()
void	readUTF(@NotNull io.deephaven.base.string.cache.CharSequenceAdapterBuilder output)
String	readUTF(@NotNull io.deephaven.base.string.cache.CharSequenceAdapterBuilder output, @NotNull io.deephaven.base.string.cache.StringCache<String> cache)
void	reset()
void	setBuffer(ByteBuffer buf)	Set the buffer to be used for future read operations.
long	skip(long n)
int	skipBytes(int n)

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class java.lang.Object

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

Field Details

buf

protected ByteBuffer buf

the buffer from which we read

Constructor Details

ByteBufferInputStream

public ByteBufferInputStream(ByteBuffer buf)

Construct a new stream which reads from a byte buffer/

Method Details

setBuffer

public void setBuffer(ByteBuffer buf)

Set the buffer to be used for future read operations.

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

read

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

Overrides:

read in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class InputStream

Throws:

IOException

mark

public void mark(int readlimit)

Overrides:

mark in class InputStream

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream

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

readUTF

public String readUTF(@NotNull
 @NotNull io.deephaven.base.string.cache.CharSequenceAdapterBuilder output,
 @NotNull
 @NotNull io.deephaven.base.string.cache.StringCache<String> cache)
               throws IOException

Throws:

IOException

readUTF

public void readUTF(@NotNull
 @NotNull io.deephaven.base.string.cache.CharSequenceAdapterBuilder output)
             throws IOException

Throws:

IOException

read

public void read(ByteBuffer dest,
 int length)