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package com.sun.xml.ws.transport.tcp.server;

import com.sun.istack.NotNull;
import com.sun.istack.Nullable;
import com.sun.xml.ws.transport.tcp.io.Connection;
import com.sun.xml.ws.transport.tcp.util.ChannelContext;
import com.sun.xml.ws.transport.tcp.util.ConnectionSession;
import com.sun.xml.ws.transport.tcp.util.SessionCloseListener;
import java.util.HashMap;
import java.util.Map;

/**
 * @author Alexey Stashok
 */
public final class ServerConnectionSession extends ConnectionSession {
    private Map<Integer, ChannelContext> channelId2context = 
            new HashMap<Integer, ChannelContext>();
    
    private int channelCounter;
    
    public ServerConnectionSession(final Connection connection, final SessionCloseListener<ServerConnectionSession> sessionCloseListener) {
        super(connection, sessionCloseListener);
        channelCounter = 1;
        init();
    }
    
    public void registerChannel(@NotNull final ChannelContext context) {
        channelId2context.put(context.getChannelId(), context);
    }
    
    public @Nullable ChannelContext findWSServiceContextByChannelId(final int channelId) {
        return channelId2context.get(channelId);
    }
    
    public void deregisterChannel(final int channelId) {
        channelId2context.remove(channelId);
    }

    public void deregisterChannel(@NotNull final ChannelContext context) {
        deregisterChannel(context.getChannelId());
    }
    
    public void close() {
        super.close();

        channelId2context = null;
    }

    public int getChannelsAmount() {
        return channelId2context.size();
    }
    
    public synchronized int getNextAvailChannelId() {
        return channelCounter++;
    }    

}