com.oracle.svm.core.jdk.resources

Class ByteArrayChannel

java.lang.Object

com.oracle.svm.core.jdk.resources.ByteArrayChannel

All Implemented Interfaces:

Closeable, AutoCloseable, ByteChannel, Channel, ReadableByteChannel, SeekableByteChannel, WritableByteChannel

public class ByteArrayChannel
extends Object
implements SeekableByteChannel

This class is copy of class jdk.nio.zipfs.ByteArrayChannel. There are two reasons why we cannot substitute this class:

• This class doesn't exists on JDK8.
• On JDK11, we need to extends this class, and in case of substitution, it's not possible because substituted class is final

Method Summary

Modifier and Type	Method and Description
void	close()
boolean	isOpen()
long	position()
SeekableByteChannel	position(long position)
int	read(ByteBuffer dst)
long	size()
byte[]	toByteArray() Creates a newly allocated byte array.
SeekableByteChannel	truncate(long size)
int	write(ByteBuffer src)

Methods inherited from class java.lang.Object

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

Method Detail

isOpen

public boolean isOpen()

Specified by:

isOpen in interface Channel

position

public long position()
              throws IOException

Specified by:

position in interface SeekableByteChannel

Throws:

IOException

position

public SeekableByteChannel position(long position)
                             throws IOException

Specified by:

position in interface SeekableByteChannel

Throws:

IOException

read

public int read(ByteBuffer dst)
         throws IOException

Specified by:

read in interface ReadableByteChannel

Specified by:

read in interface SeekableByteChannel

Throws:

IOException

truncate

public SeekableByteChannel truncate(long size)
                             throws IOException

Specified by:

truncate in interface SeekableByteChannel

Throws:

IOException

write

public int write(ByteBuffer src)
          throws IOException

Specified by:

write in interface SeekableByteChannel

Specified by:

write in interface WritableByteChannel

Throws:

IOException

size

public long size()
          throws IOException

Specified by:

size in interface SeekableByteChannel

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Channel

Throws:

IOException

toByteArray

public byte[] toByteArray()

Creates a newly allocated byte array. Its size is the current size of this channel and the valid contents of the buffer have been copied into it.

Returns:

the current contents of this channel, as a byte array.