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package com.sun.enterprise.server.ss.provider;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.AsynchronousCloseException;
import java.util.Hashtable;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.enterprise.server.ss.spi.ASSocketFacadeUtils;
import com.sun.logging.LogDomains;
/**
* NIO based SocketImpl implementation used by java.net.ServerSocket.
*/
public final class ASServerSocketImpl extends java.net.SocketImpl {
private static final Logger logger = LogDomains.getLogger(LogDomains.CORE_LOGGER);
private java.net.InetAddress hostToBind;
private int portToBind;
private ServerSocketChannel ssc;
private ServerSocket ss;
private Selector selector;
private Hashtable options = new Hashtable();
public int available() throws IOException {
throw new UnsupportedOperationException(
"available() not supported in ASServerSocketImpl");
}
public void connect(java.lang.String s,int i) throws IOException {
throw new UnsupportedOperationException(
"connect() not supported in ASServerSocketImpl");
}
public void connect(java.net.InetAddress ia,int i)
throws IOException {
throw new UnsupportedOperationException(
"connect() not supported in ASServerSocketImpl");
}
public void connect(java.net.SocketAddress sa,int i)
throws IOException {
throw new UnsupportedOperationException(
"connect() not supported in ASServerSocketImpl");
}
public java.io.InputStream getInputStream() throws IOException {
throw new UnsupportedOperationException(
"getInputStream() not supported in ASServerSocketImpl");
}
public java.io.OutputStream getOutputStream() throws IOException {
throw new UnsupportedOperationException(
"getOutputStream() not supported in ASServerSocketImpl");
}
public void shutdownInput() throws IOException {
throw new UnsupportedOperationException(
"shutdownInput() not supported in ASServerSocketImpl");
}
public void shutdownOutput() throws IOException {
throw new UnsupportedOperationException(
"shutdownOutput() not supported in ASServerSocketImpl");
}
public boolean supportsUrgentData() {
throw new UnsupportedOperationException(
"supportsUrgentData() not supported in ASServerSocketImpl");
}
public void sendUrgentData(int i) throws IOException {
throw new UnsupportedOperationException(
"sendUrgentData() not supported in ASServerSocketImpl");
}
public void close() throws IOException {
if (ss != null && !ss.isClosed()) {
try {
ServerSocketChannel channelToClose = ssc;
ServerSocket socketToClose = ss;
if (ssc instanceof ASServerSocketChannel) {
ASServerSocketChannel assc =
(ASServerSocketChannel) ssc;
channelToClose = (ServerSocketChannel) assc.getActualChannel();
socketToClose = ssc.socket();
}
ASSocketFacadeUtils.getASSocketService().close(portToBind,
socketToClose, channelToClose);
} catch (IOException e) {
if ( logger.isLoggable(Level.FINE) ) {
logger.log(Level.FINE, ""+ e.getMessage(),e);
}
}
}
}
public void create(boolean stream) throws IOException {
// No-op: stream is always true when called from ServerSocket
}
public void bind(java.net.InetAddress host, int port) throws IOException {
hostToBind = host;
portToBind = port;
// actual binding happens in listen() below, because listen() is
// called after bind() by java.net.ServerSocket.java.
}
public void listen(int backlog) throws IOException {
// Check for services that are not lazily initialized
if (!ASSocketFacadeUtils.getASSocketService().exists(portToBind)) {
ssc = ServerSocketChannel.open();
ss = ssc.socket();
} else {
ssc = ASSocketFacadeUtils.getASSocketService().
getServerSocketChannel(portToBind);
ss = ASSocketFacadeUtils.getASSocketService().
getServerSocket(portToBind);
}
InetSocketAddress isa = new InetSocketAddress(hostToBind, portToBind);
ss.bind(isa, backlog);
localport = ss.getLocalPort();
address = ss.getInetAddress();
}
public void accept(java.net.SocketImpl si) throws IOException {
try {
Socket sock = ss.accept();
((ASClientSocketImpl)si).setClientSocket(sock);
} catch (AsynchronousCloseException ase) {
SocketException se = new SocketException(ase.getMessage());
se.initCause(ase);
throw se;
}
}
public void setOption(int opt,java.lang.Object val ) throws SocketException{
if ( logger.isLoggable(Level.FINE) ) {
logger.log(java.util.logging.Level.FINE, "In ASServerSocketImpl.setOption, opt = "
+opt+" val = "+val, new Exception());
}
//Consider only those options that are settable in a ServerSocket
switch (opt) {
case SO_TIMEOUT:
if (val == null || (!(val instanceof Integer)))
throw new SocketException("Bad parameter for SO_TIMEOUT");
int tmp = ((Integer) val).intValue();
if (tmp < 0)
throw new IllegalArgumentException("timeout < 0");
ss.setSoTimeout( tmp );
break;
case SO_RCVBUF:
if (val == null || !(val instanceof Integer) ||
!(((Integer)val).intValue() > 0)) {
throw new SocketException("bad parameter for SO_SNDBUF " +
"or SO_RCVBUF");
}
ss.setReceiveBufferSize( ((Integer) val).intValue() );
break;
case SO_REUSEADDR:
if (val == null || !(val instanceof Boolean))
throw new SocketException("bad parameter for SO_REUSEADDR");
if (ss != null)
ss.setReuseAddress( ((Boolean)val).booleanValue() );
break;
default:
throw new SocketException("unrecognized TCP option: " + opt);
}
}
public Object getOption(int opt) throws SocketException {
ServerSocket localss = ss;
try {
if (localss == null) {
try {
localss = ServerSocketChannel.open().socket();
} catch (Exception e) {
}
}
switch (opt) {
case SO_TIMEOUT:
try {
return new Integer(localss.getSoTimeout());
} catch( IOException ioe ) {
throw new SocketException(ioe.getMessage()) ;
}
case SO_RCVBUF:
return new Integer(localss.getReceiveBufferSize());
case SO_REUSEADDR:
return new Boolean(localss.getReuseAddress());
default:
throw new SocketException("unrecognized TCP option: " + opt);
}
} finally {
if (localss != ss) {
try {
localss.close();
} catch (Throwable e) {
}
}
}
}
}