org.glassfish.grizzly.utils.EchoFilter Maven / Gradle / Ivy

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package org.glassfish.grizzly.utils;

import org.glassfish.grizzly.Buffer;
import org.glassfish.grizzly.filterchain.BaseFilter;
import org.glassfish.grizzly.filterchain.FilterChainContext;
import org.glassfish.grizzly.filterchain.NextAction;
import java.io.IOException;
import java.util.logging.Filter;
import java.util.logging.Logger;
import org.glassfish.grizzly.Connection;
import org.glassfish.grizzly.Grizzly;
import java.util.logging.Level;

/**
 * Echo {@link Filter} implementation
 * 
 * @author Alexey Stashok
 */
public class EchoFilter extends BaseFilter {

    private static final Logger logger = Grizzly.logger(EchoFilter.class);

    @Override
    public NextAction handleRead(final FilterChainContext ctx)
            throws IOException {
        final Object message = ctx.getMessage();
        final Connection connection = ctx.getConnection();
        final Object address = ctx.getAddress();

        if (logger.isLoggable(Level.FINEST)) {
            logger.log(Level.FINEST, "EchoFilter. connection={0} dstAddress={1} message={2}",
                    new Object[]{connection, address, message});
        }
        
        if (message instanceof Buffer) {
            ((Buffer) message).allowBufferDispose(true);
        }

        ctx.write(address, message, null);

        return ctx.getStopAction();
    }
}