netty5/handler/src/main/java/io/netty/handler/ssl/JdkDefaultApplicationProtocolNegotiator.java
田欧 6222101924 migrate java8: use lambda and method reference (#8781)
Motivation:

We can use lambdas now as we use Java8.

Modification:

use lambda function for all package, #8751 only migrate transport package.

Result:

Code cleanup.
2019-01-29 14:06:05 +01:00

56 lines
1.9 KiB
Java

/*
* Copyright 2014 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.handler.ssl;
import java.util.Collections;
import java.util.List;
import javax.net.ssl.SSLEngine;
/**
* The {@link JdkApplicationProtocolNegotiator} to use if you do not care about NPN or ALPN and are using
* {@link SslProvider#JDK}.
*/
final class JdkDefaultApplicationProtocolNegotiator implements JdkApplicationProtocolNegotiator {
public static final JdkDefaultApplicationProtocolNegotiator INSTANCE =
new JdkDefaultApplicationProtocolNegotiator();
private static final SslEngineWrapperFactory DEFAULT_SSL_ENGINE_WRAPPER_FACTORY =
(engine, applicationNegotiator, isServer) -> engine;
private JdkDefaultApplicationProtocolNegotiator() {
}
@Override
public SslEngineWrapperFactory wrapperFactory() {
return DEFAULT_SSL_ENGINE_WRAPPER_FACTORY;
}
@Override
public ProtocolSelectorFactory protocolSelectorFactory() {
throw new UnsupportedOperationException("Application protocol negotiation unsupported");
}
@Override
public ProtocolSelectionListenerFactory protocolListenerFactory() {
throw new UnsupportedOperationException("Application protocol negotiation unsupported");
}
@Override
public List<String> protocols() {
return Collections.emptyList();
}
}