package org.glassfish.grizzly.http2;
import java.util.Arrays;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.net.ssl.SSLEngine;
import org.glassfish.grizzly.Connection;
import org.glassfish.grizzly.Grizzly;
import org.glassfish.grizzly.npn.AlpnClientNegotiator;
class AlpnClientNegotiatorImpl extends AlpnNegotiatorBase implements AlpnClientNegotiator {
private final static Logger LOGGER = Grizzly.logger(AlpnClientNegotiatorImpl.class);
private final Http2ClientFilter filter;
public AlpnClientNegotiatorImpl(final Http2ClientFilter filter) {
this.filter = filter;
}
@Override
public String[] getProtocols(final SSLEngine sslEngine) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "Alpn getProtocols. Connection={0}, protocols={1}",
new Object[]{AlpnSupport.getConnection(sslEngine), Arrays.toString(SUPPORTED_PROTOCOLS)});
}
return SUPPORTED_PROTOCOLS.clone();
}
@Override
public void protocolSelected(final SSLEngine sslEngine, final String selectedProtocol) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "Alpn protocolSelected. Connection={0}, protocol={1}",
new Object[]{AlpnSupport.getConnection(sslEngine), selectedProtocol});
}
final Connection connection = AlpnSupport.getConnection(sslEngine);
if (HTTP2.equals(selectedProtocol)) {
final Http2Session http2Session =
filter.createClientHttp2Session(connection);
http2Session.getHttp2State().setDirectUpgradePhase();
http2Session.sendPreface();
} else {
Http2State.create(connection).setNeverHttp2();
}
}
}