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java.lang.Objectorg.apache.mina.core.polling.AbstractPollingIoProcessor<NioSession>
org.apache.mina.transport.socket.nio.NioProcessor
public final class NioProcessor
TODO Add documentation
Nested Class Summary | |
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protected static class |
NioProcessor.IoSessionIterator<NioSession>
An encapsulating iterator around the Selector.selectedKeys() or
the Selector.keys() iterator; |
Field Summary |
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Fields inherited from class org.apache.mina.core.polling.AbstractPollingIoProcessor |
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wakeupCalled |
Constructor Summary | |
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NioProcessor(Executor executor)
Creates a new instance of NioProcessor. |
Method Summary | |
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protected Iterator<NioSession> |
allSessions()
Get an Iterator for the list of IoSession polled by this
IoProcessor |
protected void |
destroy(NioSession session)
Destroy the underlying client socket handle |
protected void |
doDispose()
Dispose the resources used by this IoProcessor for polling the
client connections. |
protected SessionState |
getState(NioSession session)
Get the state of a session (preparing, open, closed) |
protected void |
init(NioSession session)
Initialize the polling of a session. |
protected boolean |
isBrokenConnection()
Check that the select() has not exited immediately just because of a broken connection. |
protected boolean |
isInterestedInRead(NioSession session)
is this session registered for reading |
protected boolean |
isInterestedInWrite(NioSession session)
is this session registered for writing |
protected boolean |
isReadable(NioSession session)
Is the session ready for reading |
protected boolean |
isSelectorEmpty()
Say if the list of IoSession polled by this IoProcessor
is empty |
protected boolean |
isWritable(NioSession session)
Is the session ready for writing |
protected int |
read(NioSession session,
IoBuffer buf)
Reads a sequence of bytes from a IoSession into the given
IoBuffer . |
protected void |
registerNewSelector()
In the case we are using the java select() method, this method is used to trash the buggy selector and create a new one, registering all the sockets on it. |
protected int |
select()
poll those sessions forever |
protected int |
select(long timeout)
poll those sessions for the given timeout |
protected Iterator<NioSession> |
selectedSessions()
Get an Iterator for the list of IoSession found selected
by the last call of {@link AbstractPollingIoProcessor#select(int) |
protected void |
setInterestedInRead(NioSession session,
boolean isInterested)
register a session for reading |
protected void |
setInterestedInWrite(NioSession session,
boolean isInterested)
register a session for writing |
protected int |
transferFile(NioSession session,
FileRegion region,
int length)
Write a part of a file to a IoSession , if the underlying API
isn't supporting system calls like sendfile(), you can throw a
UnsupportedOperationException so the file will be send using
usual AbstractPollingIoProcessor.write(AbstractIoSession, IoBuffer, int) call. |
protected void |
wakeup()
Interrupt the {@link AbstractPollingIoProcessor#select(int) call. |
protected int |
write(NioSession session,
IoBuffer buf,
int length)
Write a sequence of bytes to a IoSession , means to be called when
a session was found ready for writing. |
Methods inherited from class org.apache.mina.core.polling.AbstractPollingIoProcessor |
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add, dispose, flush, isDisposed, isDisposing, remove, updateTrafficControl, updateTrafficMask |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public NioProcessor(Executor executor)
executor
- Method Detail |
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protected void doDispose() throws Exception
AbstractPollingIoProcessor
IoProcessor
for polling the
client connections. The implementing class doDispose method will be called.
doDispose
in class AbstractPollingIoProcessor<NioSession>
Exception
- if some low level IO error occursprotected int select(long timeout) throws Exception
AbstractPollingIoProcessor
select
in class AbstractPollingIoProcessor<NioSession>
timeout
- milliseconds before the call timeout if no event appear
Exception
- if some low level IO error occursprotected int select() throws Exception
AbstractPollingIoProcessor
select
in class AbstractPollingIoProcessor<NioSession>
Exception
- if some low level IO error occursprotected boolean isSelectorEmpty()
AbstractPollingIoProcessor
IoSession
polled by this IoProcessor
is empty
isSelectorEmpty
in class AbstractPollingIoProcessor<NioSession>
IoProcessor
protected void wakeup()
AbstractPollingIoProcessor
wakeup
in class AbstractPollingIoProcessor<NioSession>
protected Iterator<NioSession> allSessions()
AbstractPollingIoProcessor
Iterator
for the list of IoSession
polled by this
IoProcessor
allSessions
in class AbstractPollingIoProcessor<NioSession>
Iterator
of IoSession
protected Iterator<NioSession> selectedSessions()
AbstractPollingIoProcessor
Iterator
for the list of IoSession
found selected
by the last call of {@link AbstractPollingIoProcessor#select(int)
selectedSessions
in class AbstractPollingIoProcessor<NioSession>
Iterator
of IoSession
read for I/Os operationprotected void init(NioSession session) throws Exception
AbstractPollingIoProcessor
init
in class AbstractPollingIoProcessor<NioSession>
session
- the IoSession
to add to the polling
Exception
- any exception thrown by the underlying system callsprotected void destroy(NioSession session) throws Exception
AbstractPollingIoProcessor
destroy
in class AbstractPollingIoProcessor<NioSession>
session
- the IoSession
Exception
- any exception thrown by the underlying system callsprotected void registerNewSelector() throws IOException
registerNewSelector
in class AbstractPollingIoProcessor<NioSession>
IOException
- If we got an exceptionprotected boolean isBrokenConnection() throws IOException
isBrokenConnection
in class AbstractPollingIoProcessor<NioSession>
IOException
- If we got an exceptionprotected SessionState getState(NioSession session)
getState
in class AbstractPollingIoProcessor<NioSession>
session
- the IoSession
to inspect
protected boolean isReadable(NioSession session)
AbstractPollingIoProcessor
isReadable
in class AbstractPollingIoProcessor<NioSession>
session
- the session queried
protected boolean isWritable(NioSession session)
AbstractPollingIoProcessor
isWritable
in class AbstractPollingIoProcessor<NioSession>
session
- the session queried
protected boolean isInterestedInRead(NioSession session)
AbstractPollingIoProcessor
isInterestedInRead
in class AbstractPollingIoProcessor<NioSession>
session
- the session queried
protected boolean isInterestedInWrite(NioSession session)
AbstractPollingIoProcessor
isInterestedInWrite
in class AbstractPollingIoProcessor<NioSession>
session
- the session queried
protected void setInterestedInRead(NioSession session, boolean isInterested) throws Exception
setInterestedInRead
in class AbstractPollingIoProcessor<NioSession>
session
- the session registeredisInterested
- true for registering, false for removing
Exception
protected void setInterestedInWrite(NioSession session, boolean isInterested) throws Exception
setInterestedInWrite
in class AbstractPollingIoProcessor<NioSession>
session
- the session registeredisInterested
- true for registering, false for removing
Exception
protected int read(NioSession session, IoBuffer buf) throws Exception
AbstractPollingIoProcessor
IoSession
into the given
IoBuffer
. Is called when the session was found ready for reading.
read
in class AbstractPollingIoProcessor<NioSession>
session
- the session to readbuf
- the buffer to fill
Exception
- any exception thrown by the underlying system callsprotected int write(NioSession session, IoBuffer buf, int length) throws Exception
AbstractPollingIoProcessor
IoSession
, means to be called when
a session was found ready for writing.
write
in class AbstractPollingIoProcessor<NioSession>
session
- the session to writebuf
- the buffer to writelength
- the number of bytes to write can be superior to the number of
bytes remaining in the buffer
Exception
- any exception thrown by the underlying system callsprotected int transferFile(NioSession session, FileRegion region, int length) throws Exception
AbstractPollingIoProcessor
IoSession
, if the underlying API
isn't supporting system calls like sendfile(), you can throw a
UnsupportedOperationException
so the file will be send using
usual AbstractPollingIoProcessor.write(AbstractIoSession, IoBuffer, int)
call.
transferFile
in class AbstractPollingIoProcessor<NioSession>
session
- the session to writeregion
- the file region to writelength
- the length of the portion to send
Exception
- any exception thrown by the underlying system calls
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