1 /*
2 * Copyright 2014 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License, version 2.0 (the
5 * "License"); you may not use this file except in compliance with the License. You may obtain a
6 * copy of the License at:
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software distributed under the License
11 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
12 * or implied. See the License for the specific language governing permissions and limitations under
13 * the License.
14 */
15 package io.netty.handler.codec.http2;
16
17 import io.netty.buffer.ByteBuf;
18 import io.netty.channel.ChannelHandlerContext;
19 import io.netty.util.internal.UnstableApi;
20
21 import java.io.Closeable;
22 import java.util.List;
23
24 /**
25 * Handler for inbound traffic on behalf of {@link Http2ConnectionHandler}. Performs basic protocol
26 * conformance on inbound frames before calling the delegate {@link Http2FrameListener} for
27 * application-specific processing. Note that frames of an unknown type (i.e. HTTP/2 extensions)
28 * will skip all protocol checks and be given directly to the listener for processing.
29 */
30 @UnstableApi
31 public interface Http2ConnectionDecoder extends Closeable {
32
33 /**
34 * Sets the lifecycle manager. Must be called as part of initialization before the decoder is used.
35 */
36 void lifecycleManager(Http2LifecycleManager lifecycleManager);
37
38 /**
39 * Provides direct access to the underlying connection.
40 */
41 Http2Connection connection();
42
43 /**
44 * Provides the local flow controller for managing inbound traffic.
45 */
46 Http2LocalFlowController flowController();
47
48 /**
49 * Set the {@link Http2FrameListener} which will be notified when frames are decoded.
50 * <p>
51 * This <strong>must</strong> be set before frames are decoded.
52 */
53 void frameListener(Http2FrameListener listener);
54
55 /**
56 * Get the {@link Http2FrameListener} which will be notified when frames are decoded.
57 */
58 Http2FrameListener frameListener();
59
60 /**
61 * Called by the {@link Http2ConnectionHandler} to decode the next frame from the input buffer.
62 */
63 void decodeFrame(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Http2Exception;
64
65 /**
66 * Gets the local settings for this endpoint of the HTTP/2 connection.
67 */
68 Http2Settings localSettings();
69
70 /**
71 * Indicates whether or not the first initial {@code SETTINGS} frame was received from the remote endpoint.
72 */
73 boolean prefaceReceived();
74
75 @Override
76 void close();
77 }
以上源码来自： 即时通讯网 - 即时通讯开发者社区！