XProtocolFinder.java

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package org.glassfish.grizzly.config;

import org.glassfish.grizzly.Buffer;
import org.glassfish.grizzly.filterchain.FilterChainContext;
import org.glassfish.grizzly.portunif.PUContext;
import org.glassfish.grizzly.portunif.ProtocolFinder;

/**
 *
 * @author oleksiys
 */
public class XProtocolFinder implements ProtocolFinder {

    private final static String name = "X-protocol";
    private byte[] signature = name.getBytes(XProtocolFilter.CHARSET);


    @Override
    public Result find(PUContext puContext, FilterChainContext ctx) {
        
        final Buffer buffer = ctx.getMessage();

        if (buffer.remaining() < signature.length) {
            return Result.NEED_MORE_DATA;
        }

        final int start = buffer.position();

        for (int i = 0; i < signature.length; i++) {
            if (buffer.get(i + start) != signature[i]) {
                return Result.NOT_FOUND;
            }
        }

        return Result.FOUND;
    }
}