DebugFilter.java

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package org.young.isocket.filter;

import java.io.IOException;

import org.glassfish.grizzly.filterchain.BaseFilter;
import org.glassfish.grizzly.filterchain.FilterChain;
import org.glassfish.grizzly.filterchain.FilterChainContext;
import org.glassfish.grizzly.filterchain.NextAction;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Implementation of {@link FilterChain} filter, which replies with the request
 * message.
 * 
 * @author Alexey Stashok
 */
public class DebugFilter extends BaseFilter {

    private static final Logger logger = LoggerFactory.getLogger(DebugFilter.class);

    /**
     * Handle just read operation, when some message has come and ready to be
     * processed.
     *
     * @param ctx Context of {@link FilterChainContext} processing
     * @return the next action
     * @throws java.io.IOException
     */
    @Override
    public NextAction handleRead(FilterChainContext ctx) throws IOException {
        // Peer address is used for non-connected UDP Connection :)
        final Object peerAddress = ctx.getAddress();

        final Object message = ctx.getMessage();

        if (logger.isDebugEnabled())
            logger.debug("address:{},message:{}", new Object[] { peerAddress, message });

        //ctx.write(peerAddress, message, null);

        return ctx.getInvokeAction();
    }
}