com.sun.grizzly.nio.transport.TCPNIOConnection Maven / Gradle / Ivy
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package com.sun.grizzly.nio.transport;
import java.util.concurrent.Future;
import com.sun.grizzly.Buffer;
import com.sun.grizzly.CompletionHandler;
import com.sun.grizzly.ReadResult;
import com.sun.grizzly.WriteResult;
import com.sun.grizzly.nio.AbstractNIOConnection;
import com.sun.grizzly.IOEvent;
import com.sun.grizzly.nio.SelectorRunner;
import java.io.IOException;
import java.net.SocketAddress;
import java.nio.channels.SelectableChannel;
import java.nio.channels.SelectionKey;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.grizzly.Connection;
import com.sun.grizzly.Grizzly;
import com.sun.grizzly.impl.FutureImpl;
import com.sun.grizzly.streams.StreamReader;
import com.sun.grizzly.streams.StreamWriter;
import com.sun.grizzly.utils.conditions.Condition;
/**
* {@link com.sun.grizzly.Connection} implementation
* for the {@link TCPNIOTransport}
*
* @author Alexey Stashok
*/
public class TCPNIOConnection extends AbstractNIOConnection {
private Logger logger = Grizzly.logger;
private final TCPNIOStreamReader streamReader;
private final TCPNIOStreamWriter streamWriter;
private SocketAddress localSocketAddress;
private SocketAddress peerSocketAddress;
public TCPNIOConnection(TCPNIOTransport transport,
SelectableChannel channel) {
super(transport);
this.channel = channel;
readBufferSize = transport.getReadBufferSize();
writeBufferSize = transport.getWriteBufferSize();
resetAddresses();
streamReader = new TCPNIOStreamReader(this);
streamWriter = new TCPNIOStreamWriter(this);
}
@Override
protected void setSelectionKey(SelectionKey selectionKey) {
super.setSelectionKey(selectionKey);
}
@Override
protected void setSelectorRunner(SelectorRunner selectorRunner) {
super.setSelectorRunner(selectorRunner);
}
public StreamReader getStreamReader() {
return streamReader;
}
public StreamWriter getStreamWriter() {
return streamWriter;
}
protected void preClose() {
try {
transport.fireIOEvent(IOEvent.CLOSED, this);
} catch (IOException e) {
Grizzly.logger.log(Level.FINE, "Unexpected IOExcption occurred, " +
"when firing CLOSE event");
}
}
/**
* Returns the address of the endpoint this Connection is
* connected to, or null if it is unconnected.
* @return the address of the endpoint this Connection is
* connected to, or null if it is unconnected.
*/
public SocketAddress getPeerAddress() {
return peerSocketAddress;
}
/**
* Returns the local address of this Connection,
* or null if it is unconnected.
* @return the local address of this Connection,
* or null if it is unconnected.
*/
public SocketAddress getLocalAddress() {
return localSocketAddress;
}
protected void resetAddresses() {
if (channel != null) {
if (channel instanceof SocketChannel) {
localSocketAddress =
((SocketChannel) channel).socket().getLocalSocketAddress();
peerSocketAddress =
((SocketChannel) channel).socket().getRemoteSocketAddress();
} else if (channel instanceof ServerSocketChannel) {
localSocketAddress =
((ServerSocketChannel) channel).socket().getLocalSocketAddress();
peerSocketAddress = null;
}
}
}
@Override
public Future> read(final Buffer buffer,
final CompletionHandler> completionHandler,
final Condition> condition)
throws IOException {
final FutureImpl> future =
new FutureImpl>();
final ReadResult readResult =
new ReadResult(TCPNIOConnection.this,
buffer, getPeerAddress(), 0);
streamReader.notifyCondition(new Condition() {
@Override
public boolean check(final StreamReader streamReader) {
if (condition == null) {
return streamReader.hasAvailableData();
} else {
readResult.setReadSize(streamReader.availableDataSize());
return condition.check(readResult);
}
}
}, new CompletionHandler() {
@Override
public void cancelled(Connection connection) {
completionHandler.cancelled(connection);
future.cancel(false);
}
@Override
public void failed(Connection connection, Throwable throwable) {
completionHandler.failed(connection, throwable);
future.failure(throwable);
}
@Override
public void completed(Connection connection, Integer result) {
readResult.setReadSize(result);
if (completionHandler != null) {
completionHandler.completed(connection, readResult);
}
future.setResult(readResult); }
@Override
public void updated(Connection connection, Integer result) {
readResult.setReadSize(result);
completionHandler.updated(connection, readResult);
}
});
return future;
}
@Override
public Future> write(
final SocketAddress dstAddress, final Buffer buffer,
final CompletionHandler> completionHandler)
throws IOException {
final FutureImpl> future =
new FutureImpl>();
streamWriter.writeBuffer(buffer);
streamWriter.flush(new CompletionHandler() {
private final WriteResult writeResult =
new WriteResult(TCPNIOConnection.this,
buffer, getPeerAddress(), 0);
@Override
public void cancelled(Connection connection) {
completionHandler.cancelled(connection);
future.cancel(false);
}
@Override
public void failed(Connection connection, Throwable throwable) {
completionHandler.failed(connection, throwable);
future.failure(throwable);
}
@Override
public void completed(Connection connection, Integer result) {
writeResult.setWrittenSize(result);
if (completionHandler != null) {
completionHandler.completed(connection, writeResult);
}
future.setResult(writeResult);
}
@Override
public void updated(Connection connection, Integer result) {
writeResult.setWrittenSize(result);
completionHandler.updated(connection, writeResult);
}
});
return future;
}
}
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