/
HeadersFilter.java
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/
HeadersFilter.java
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package org.glassfish.grizzly.bm;
import java.io.IOException;
import org.glassfish.grizzly.filterchain.FilterChainContext;
import org.glassfish.grizzly.filterchain.NextAction;
import org.glassfish.grizzly.http.HttpBaseFilter;
import org.glassfish.grizzly.http.HttpContent;
import org.glassfish.grizzly.http.HttpPacket;
import org.glassfish.grizzly.http.HttpRequestPacket;
import org.glassfish.grizzly.http.HttpResponsePacket;
import org.glassfish.grizzly.http.util.FastHttpDateFormat;
import org.glassfish.grizzly.http.util.Header;
/**
* Must be added just before the HttpServerFilter i.e. second to last in the filter chain.
*
* @author zloster
*
*/
public class HeadersFilter extends HttpBaseFilter {
@Override
protected void bind(HttpRequestPacket request, HttpResponsePacket response) {
// This is never called. I don't know why.
super.bind(request, response);
}
@Override
public NextAction handleRead(FilterChainContext ctx) throws IOException {
// Taken from HttpServerFilter
final Object message = ctx.getMessage();
if (HttpPacket.isHttp(message)) {
// Otherwise cast message to a HttpContent
final HttpContent httpContent = (HttpContent) message;
final HttpRequestPacket request = (HttpRequestPacket) httpContent.getHttpHeader();
final HttpResponsePacket response = request.getResponse();
response.setHeader(Header.Server, Server.SERVER_VERSION);
response.setHeader(Header.Date, FastHttpDateFormat.getCurrentDate());
}
return super.handleRead(ctx);
}
}