Example usage for io.netty.handler.codec.http2 Http2Flags Http2Flags

Introduction

In this page you can find the example usage for io.netty.handler.codec.http2 Http2Flags Http2Flags.

Prototype

public Http2Flags(short value) 

Source Link

Usage

From source file:com.netty.grpc.proxy.demo.handler.GrpcProxyBackendHandler.java

License:Apache License

@Override
public void channelRead(final ChannelHandlerContext ctx, Object msg) {
    ByteBuf buf = (ByteBuf) msg;/* w w  w . j  a  va  2 s.  co m*/
    System.out.println("channelRead:" + ByteBufUtil.hexDump((buf)));
    while (buf.readableBytes() > 0) {

        int payload = buf.readUnsignedMedium();
        int frameType = buf.readByte();
        Http2Flags flags = new Http2Flags(buf.readUnsignedByte());
        int streamId = readUnsignedInt(buf);
        ByteBuf payloadBuf = buf.readBytes(payload);
        ByteBuf copy = ctx.alloc().buffer();
        System.out.println("frame_type:" + frameType + "," + ByteBufUtil.hexDump((payloadBuf)));
        switch (frameType) {
        case Http2FrameTypes.SETTINGS:
            handleSettingFrame(ctx, flags);
            break;
        case Http2FrameTypes.WINDOW_UPDATE:
            handleWindowsUpdateFrame(ctx);
            break;
        case Http2FrameTypes.HEADERS:

            copy.writeMedium(payload);
            copy.writeByte(frameType);
            copy.writeByte(flags.value());
            copy.writeInt(streamId);
            copy.writeBytes(payloadBuf);
            forward(ctx, copy);
            break;
        case Http2FrameTypes.DATA:
            copy.writeMedium(payload);
            copy.writeByte(frameType);
            copy.writeByte(flags.value());
            copy.writeInt(streamId);
            copy.writeBytes(payloadBuf);
            forward(ctx, copy);
            break;
        default:
            break;

        }
    }

}

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From source file:com.netty.grpc.proxy.demo.handler.GrpcProxyFrontendHandler.java

License:Apache License

private void readFrame(final ChannelHandlerContext ctx, ByteBuf buf) {
    if (first) {/*from w  w  w .  j a  v  a2 s  . co  m*/
        try {
            readClientPrefaceString(buf);
        } catch (Http2Exception e) {
            e.printStackTrace();
        }
        first = false;
    }

    while (buf.readableBytes() > 0) {

        int payload = buf.readUnsignedMedium();
        int frameType = buf.readByte();
        Http2Flags flags = new Http2Flags(buf.readUnsignedByte());
        int streamId = readUnsignedInt(buf);
        ByteBuf payloadBuf = buf.readBytes(payload);
        ByteBuf copy = ctx.alloc().buffer();
        switch (frameType) {
        case Http2FrameTypes.SETTINGS:
            handleSettingFrame(ctx, flags);
            break;
        case Http2FrameTypes.WINDOW_UPDATE:
            handleWindowsUpdateFrame(ctx);
            break;
        case Http2FrameTypes.HEADERS:

            copy.writeMedium(payload);
            copy.writeByte(frameType);
            copy.writeByte(flags.value());
            copy.writeInt(streamId);
            copy.writeBytes(payloadBuf);
            handleHeaderFrame(ctx, copy, streamId);
            break;
        case Http2FrameTypes.DATA:
            copy.writeMedium(payload);
            copy.writeByte(frameType);
            copy.writeByte(flags.value());
            copy.writeInt(streamId);
            copy.writeBytes(payloadBuf);
            handleDataFrame(ctx, copy, streamId);
            break;
        default:
            break;

        }
    }
}

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From source file:io.vertx.core.http.Http2ServerTest.java

License:Open Source License

@Test
public void testUnknownFrame() throws Exception {
    Buffer expectedSend = TestUtils.randomBuffer(500);
    Buffer expectedRecv = TestUtils.randomBuffer(500);
    Context ctx = vertx.getOrCreateContext();
    server.requestHandler(req -> {/* w w w . j  ava  2s.c  om*/
        req.customFrameHandler(frame -> {
            assertOnIOContext(ctx);
            assertEquals(10, frame.type());
            assertEquals(253, frame.flags());
            assertEquals(expectedSend, frame.payload());
            req.response().writeCustomFrame(12, 134, expectedRecv).end();
        });
    });
    startServer(ctx);
    TestClient client = new TestClient();
    ChannelFuture fut = client.connect(DEFAULT_HTTPS_PORT, DEFAULT_HTTPS_HOST, request -> {
        int id = request.nextStreamId();
        request.decoder.frameListener(new Http2EventAdapter() {
            int status = 0;

            @Override
            public void onHeadersRead(ChannelHandlerContext ctx, int streamId, Http2Headers headers,
                    int streamDependency, short weight, boolean exclusive, int padding, boolean endStream)
                    throws Http2Exception {
                int s = status++;
                vertx.runOnContext(v -> {
                    assertEquals(0, s);
                });
            }

            @Override
            public void onUnknownFrame(ChannelHandlerContext ctx, byte frameType, int streamId,
                    Http2Flags flags, ByteBuf payload) {
                int s = status++;
                Buffer recv = Buffer.buffer(payload.copy());
                vertx.runOnContext(v -> {
                    assertEquals(1, s);
                    assertEquals(12, frameType);
                    assertEquals(134, flags.value());
                    assertEquals(expectedRecv, recv);
                });
            }

            @Override
            public int onDataRead(ChannelHandlerContext ctx, int streamId, ByteBuf data, int padding,
                    boolean endOfStream) throws Http2Exception {
                int len = data.readableBytes();
                int s = status++;
                vertx.runOnContext(v -> {
                    assertEquals(2, s);
                    assertEquals(0, len);
                    assertTrue(endOfStream);
                    testComplete();
                });
                return data.readableBytes() + padding;
            }
        });
        request.encoder.writeHeaders(request.context, id, GET("/"), 0, false, request.context.newPromise());
        request.encoder.writeFrame(request.context, (byte) 10, id, new Http2Flags((short) 253),
                expectedSend.getByteBuf(), request.context.newPromise());
        request.context.flush();
    });
    fut.sync();
    await();
}

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From source file:io.vertx.core.http.impl.VertxHttp2ConnectionHandler.java

License:Open Source License

private void _writeFrame(Http2Stream stream, byte type, short flags, ByteBuf payload) {
    encoder().writeFrame(ctx, type, stream.id(), new Http2Flags(flags), payload, ctx.newPromise());
    ctx.flush();//w ww  . j  a v  a2s  . c  o  m
}

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