Java tutorial
/* * 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.codec.http2; import io.netty.buffer.ByteBuf; import io.netty.channel.ChannelHandlerContext; import io.netty.util.internal.UnstableApi; import java.io.Closeable; import java.util.List; /** * Handler for inbound traffic on behalf of {@link Http2ConnectionHandler}. Performs basic protocol * conformance on inbound frames before calling the delegate {@link Http2FrameListener} for * application-specific processing. Note that frames of an unknown type (i.e. HTTP/2 extensions) * will skip all protocol checks and be given directly to the listener for processing. */ @UnstableApi public interface Http2ConnectionDecoder extends Closeable { /** * Sets the lifecycle manager. Must be called as part of initialization before the decoder is used. */ void lifecycleManager(Http2LifecycleManager lifecycleManager); /** * Provides direct access to the underlying connection. */ Http2Connection connection(); /** * Provides the local flow controller for managing inbound traffic. */ Http2LocalFlowController flowController(); /** * Set the {@link Http2FrameListener} which will be notified when frames are decoded. * <p> * This <strong>must</strong> be set before frames are decoded. */ void frameListener(Http2FrameListener listener); /** * Get the {@link Http2FrameListener} which will be notified when frames are decoded. */ Http2FrameListener frameListener(); /** * Called by the {@link Http2ConnectionHandler} to decode the next frame from the input buffer. */ void decodeFrame(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Http2Exception; /** * Gets the local settings for this endpoint of the HTTP/2 connection. */ Http2Settings localSettings(); /** * Indicates whether or not the first initial {@code SETTINGS} frame was received from the remote endpoint. */ boolean prefaceReceived(); @Override void close(); }