package org.drools.grid.service.directory.impl;
import java.io.Serializable;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.drools.grid.CoreServicesLookup;
import org.drools.grid.Grid;
import org.drools.grid.GridServiceDescription;
import org.drools.grid.MessageReceiverHandlerFactoryService;
import org.drools.grid.internal.responsehandlers.BlockingMessageResponseHandler;
import org.drools.grid.io.Conversation;
import org.drools.grid.io.ConversationManager;
import org.drools.grid.io.MessageReceiverHandler;
import org.drools.grid.io.impl.CommandImpl;
import org.drools.grid.service.directory.Address;
import org.drools.grid.service.directory.WhitePages;
public class WhitePagesClient
implements
WhitePages,
MessageReceiverHandlerFactoryService {
private Grid grid;
public WhitePagesClient(Grid grid) {
this.grid = grid;
}
public GridServiceDescription<WhitePages> getGsd() {
return this.grid.get( CoreServicesLookup.class ).lookup( WhitePages.class );
}
public static Object sendMessage(ConversationManager conversationManager,
Serializable addr,
String id,
Object body) {
InetSocketAddress[] sockets = null;
if ( addr instanceof InetSocketAddress[] ) {
sockets = (InetSocketAddress[]) addr;
} else if ( addr instanceof InetSocketAddress ) {
sockets = new InetSocketAddress[1];
sockets[0] = (InetSocketAddress) addr;
}
BlockingMessageResponseHandler handler = new BlockingMessageResponseHandler();
Exception exception = null;
Conversation conv = null;
for ( InetSocketAddress socket : sockets ) {
try {
conv = conversationManager.startConversation( "",
socket,
id );
conv.sendMessage( body,
handler );
exception = null;
} catch ( Exception e ) {
exception = e;
if ( conv != null ) {
conv.endConversation();
}
}
if ( exception == null ) {
break;
}
}
if ( exception != null ) {
throw new RuntimeException( "Unable to send message",
exception );
}
try {
return handler.getMessage().getBody();
} finally {
conv.endConversation();
}
}
public GridServiceDescription create(String serviceDescriptionId) {
GridServiceDescription<WhitePages> wpGsd = getGsd();
InetSocketAddress[] sockets = (InetSocketAddress[]) ((Address) wpGsd.getAddresses().get( "socket" )).getObject();
CommandImpl cmd = new CommandImpl( "WhitePages.create",
Arrays.asList( new Object[]{serviceDescriptionId} ) );
ConversationManager convm = this.grid.get( ConversationManager.class );
GridServiceDescription gsd = (GridServiceDescription) sendMessage( convm,
sockets,
wpGsd.getId(),
cmd );
return new GridServiceDescriptionClient( gsd,
wpGsd,
convm );
}
public GridServiceDescription lookup(String serviceDescriptionId) {
GridServiceDescription<WhitePages> wpGsd = getGsd();
InetSocketAddress[] sockets = (InetSocketAddress[]) ((Address) wpGsd.getAddresses().get( "socket" )).getObject();
CommandImpl cmd = new CommandImpl( "WhitePages.lookup",
Arrays.asList( new Object[]{serviceDescriptionId} ) );
ConversationManager convm = this.grid.get( ConversationManager.class );
GridServiceDescription gsd = (GridServiceDescription) sendMessage( convm,
sockets,
wpGsd.getId(),
cmd );
return (gsd == null) ? gsd : new GridServiceDescriptionClient( gsd,
wpGsd,
convm );
}
public void remove(String serviceDescriptionId) {
GridServiceDescription<WhitePages> wpGsd = getGsd();
InetSocketAddress[] sockets = (InetSocketAddress[]) ((Address) wpGsd.getAddresses().get( "socket" )).getObject();
CommandImpl cmd = new CommandImpl( "WhitePages.remove",
Arrays.asList( new Object[]{serviceDescriptionId} ) );
ConversationManager convm = this.grid.get( ConversationManager.class );
sendMessage( convm,
sockets,
wpGsd.getId(),
cmd );
}
public MessageReceiverHandler getMessageReceiverHandler() {
return new WhitePagesServer( this );
}
public void registerSocketService(Grid grid,
String id,
String ip,
int port) {
WhitePagesImpl.doRegisterSocketService( grid,
id,
ip,
port );
}
}