Top Description Fields Constructors Methods
org.xnio.conduits

public final Class BlockingStreamSourceConduit

extends AbstractStreamSourceConduit<StreamSourceConduit>
Class Inheritance
Imports
java.io.IOException, java.nio.ByteBuffer, java.nio.channels.FileChannel, org.xnio.channels.StreamSinkChannel
A stream source conduit which can switch into and out of blocking mode.
Author
David M. Lloyd

Field Summary

Modifier and TypeField and Description
private boolean
resumed

Constructor Summary

AccessConstructor and Description
public
BlockingStreamSourceConduit(final StreamSourceConduit
the delegate conduit to set
next)

Construct a new instance.

Method Summary

Modifier and TypeMethod and Description
public boolean
isReadResumed()

Overrides org.xnio.conduits.AbstractSourceConduit.isReadResumed.

Implements org.xnio.conduits.SourceConduit.isReadResumed.

Determine whether read notifications are currently enabled.

public int
read(final ByteBuffer
the buffer to fill with data from the conduit
dst)

Overrides org.xnio.conduits.AbstractStreamSourceConduit.read.

Implements org.xnio.conduits.StreamSourceConduit.read.

Read a sequence of bytes from this conduit to the given buffer.

public long
read(final ByteBuffer[]
the buffers to fill with data from the conduit
dsts, final int
the offset into the buffer array
offs, final int
the number of buffers to fill
len)

Overrides org.xnio.conduits.AbstractStreamSourceConduit.read.

Implements org.xnio.conduits.StreamSourceConduit.read.

Read a sequence of bytes from this conduit to the given buffers.

public void
resumeReads()

Overrides org.xnio.conduits.AbstractSourceConduit.resumeReads.

Implements org.xnio.conduits.SourceConduit.resumeReads.

Indicate that the conduit's ReadReadyHandler should be invoked as soon as data can be read without blocking.

public void
suspendReads()

Overrides org.xnio.conduits.AbstractSourceConduit.suspendReads.

Implements org.xnio.conduits.SourceConduit.suspendReads.

Indicate that calling the conduit's ReadReadyHandler should be suspended.

public long
transferTo(final long
the position within the file from which the transfer is to begin
position, final long
the number of bytes to be transferred
count, final FileChannel
the file to write to
target)

Overrides org.xnio.conduits.AbstractStreamSourceConduit.transferTo.

Implements org.xnio.conduits.StreamSourceConduit.transferTo.

Transfers bytes into the given file from this channel.

public long
transferTo(final long
the number of bytes to be transferred
count, final ByteBuffer
the buffer to copy through.
throughBuffer, final StreamSinkChannel
the destination to write to
target)

Overrides org.xnio.conduits.AbstractStreamSourceConduit.transferTo.

Implements org.xnio.conduits.StreamSourceConduit.transferTo.

Transfers bytes into the given channel target.

public void
wakeupReads()

Overrides org.xnio.conduits.AbstractSourceConduit.wakeupReads.

Implements org.xnio.conduits.SourceConduit.wakeupReads.

Indicate that the conduit's ReadReadyHandler should be invoked immediately, and then again as soon as data can be read without blocking.

Field Detail

resumedback to summary
private boolean resumed

Constructor Detail

BlockingStreamSourceConduitback to summary
public BlockingStreamSourceConduit(final StreamSourceConduit next)

Construct a new instance.

Parameters
next:StreamSourceConduit

the delegate conduit to set

Method Detail

isReadResumedback to summary
public boolean isReadResumed()

Overrides org.xnio.conduits.AbstractSourceConduit.isReadResumed.

Implements org.xnio.conduits.SourceConduit.isReadResumed.

Doc from org.xnio.conduits.SourceConduit.isReadResumed.

Determine whether read notifications are currently enabled.

Returns:boolean

true if read notifications are enabled

readback to summary
public int read(final ByteBuffer dst) throws IOException

Overrides org.xnio.conduits.AbstractStreamSourceConduit.read.

Implements org.xnio.conduits.StreamSourceConduit.read.

Doc from org.xnio.conduits.StreamSourceConduit.read.

Read a sequence of bytes from this conduit to the given buffer.

Parameters
dst:ByteBuffer

the buffer to fill with data from the conduit

Returns:int

the number of bytes (possibly 0) that were actually transferred, or -1 if the end of input was reached or this conduit's terminateReads() method was previously called

Exceptions
IOException:
if an error occurs
readback to summary
public long read(final ByteBuffer[] dsts, final int offs, final int len) throws IOException

Overrides org.xnio.conduits.AbstractStreamSourceConduit.read.

Implements org.xnio.conduits.StreamSourceConduit.read.

Doc from org.xnio.conduits.StreamSourceConduit.read.

Read a sequence of bytes from this conduit to the given buffers.

Parameters
dsts:ByteBuffer[]

the buffers to fill with data from the conduit

offs:int

the offset into the buffer array

len:int

the number of buffers to fill

Returns:long

the number of bytes (possibly 0) that were actually transferred, or -1 if the end of input was reached or this conduit's terminateReads() method was previously called

Exceptions
IOException:
if an error occurs
resumeReadsback to summary
public void resumeReads()

Overrides org.xnio.conduits.AbstractSourceConduit.resumeReads.

Implements org.xnio.conduits.SourceConduit.resumeReads.

Doc from org.xnio.conduits.SourceConduit.resumeReads.

Indicate that the conduit's ReadReadyHandler should be invoked as soon as data can be read without blocking.

suspendReadsback to summary
public void suspendReads()

Overrides org.xnio.conduits.AbstractSourceConduit.suspendReads.

Implements org.xnio.conduits.SourceConduit.suspendReads.

Doc from org.xnio.conduits.SourceConduit.suspendReads.

Indicate that calling the conduit's ReadReadyHandler should be suspended.

transferToback to summary
public long transferTo(final long position, final long count, final FileChannel target) throws IOException

Overrides org.xnio.conduits.AbstractStreamSourceConduit.transferTo.

Implements org.xnio.conduits.StreamSourceConduit.transferTo.

Doc from org.xnio.conduits.StreamSourceConduit.transferTo.

Transfers bytes into the given file from this channel.

Parameters
position:long

the position within the file from which the transfer is to begin

count:long

the number of bytes to be transferred

target:FileChannel

the file to write to

Returns:long

the number of bytes (possibly 0) that were actually transferred

Exceptions
IOException:
if an I/O error occurs
transferToback to summary
public long transferTo(final long count, final ByteBuffer throughBuffer, final StreamSinkChannel target) throws IOException

Overrides org.xnio.conduits.AbstractStreamSourceConduit.transferTo.

Implements org.xnio.conduits.StreamSourceConduit.transferTo.

Doc from org.xnio.conduits.StreamSourceConduit.transferTo.

Transfers bytes into the given channel target. On entry, throughBuffer will be cleared. On exit, the buffer will be flipped for emptying, and may possibly be empty or may contain data. If this method returns a value less than count, then the remaining data in throughBuffer may contain data read from this channel which must be written to target to complete the operation.

Parameters
count:long

the number of bytes to be transferred

throughBuffer:ByteBuffer

the buffer to copy through.

target:StreamSinkChannel

the destination to write to

Returns:long

the number of bytes (possibly 0) that were actually transferred, or -1 if the end of input was reached

Exceptions
IOException:
if an I/O error occurs
wakeupReadsback to summary
public void wakeupReads()

Overrides org.xnio.conduits.AbstractSourceConduit.wakeupReads.

Implements org.xnio.conduits.SourceConduit.wakeupReads.

Doc from org.xnio.conduits.SourceConduit.wakeupReads.

Indicate that the conduit's ReadReadyHandler should be invoked immediately, and then again as soon as data can be read without blocking.