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Http2MultiplexClientUpgradeTest Class — netty Architecture

Architecture documentation for the Http2MultiplexClientUpgradeTest class in Http2MultiplexClientUpgradeTest.java from the netty codebase.

Class java

Entity Profile

Dependency Diagram

graph TD
  e84355c5_9733_4b97_b606_02dd7b61b869["Http2MultiplexClientUpgradeTest"]
  69c421b0_c1bc_4be4_2821_dd870a92fcd7["Http2MultiplexClientUpgradeTest.java"]
  e84355c5_9733_4b97_b606_02dd7b61b869 -->|defined in| 69c421b0_c1bc_4be4_2821_dd870a92fcd7
  f365f19d_5f44_eab1_7a34_ef96c13ebaf3["C()"]
  e84355c5_9733_4b97_b606_02dd7b61b869 -->|method| f365f19d_5f44_eab1_7a34_ef96c13ebaf3
  33073bdf_dc12_309b_bed9_712e5237cce6["ChannelHandler()"]
  e84355c5_9733_4b97_b606_02dd7b61b869 -->|method| 33073bdf_dc12_309b_bed9_712e5237cce6
  c61774d3_7923_e8ff_f42b_e13be660735e["upgradeHandlerGetsActivated()"]
  e84355c5_9733_4b97_b606_02dd7b61b869 -->|method| c61774d3_7923_e8ff_f42b_e13be660735e
  cc66d897_65f5_07ed_a181_c3df1a30a909["clientUpgradeWithoutUpgradeHandlerThrowsHttp2Exception()"]
  e84355c5_9733_4b97_b606_02dd7b61b869 -->|method| cc66d897_65f5_07ed_a181_c3df1a30a909

Relationship Graph

Source Code

codec-http2/src/test/java/io/netty/handler/codec/http2/Http2MultiplexClientUpgradeTest.java lines 30–96

public abstract class Http2MultiplexClientUpgradeTest<C extends Http2FrameCodec> {

    @ChannelHandler.Sharable
    static final class NoopHandler extends ChannelInboundHandlerAdapter {
        @Override
        public void channelActive(ChannelHandlerContext ctx) {
            ctx.channel().close();
        }
    }

    private static final class UpgradeHandler extends ChannelInboundHandlerAdapter {
        Http2Stream.State stateOnActive;
        int streamId;
        boolean channelInactiveCalled;

        @Override
        public void channelActive(ChannelHandlerContext ctx) throws Exception {
            Http2StreamChannel ch = (Http2StreamChannel) ctx.channel();
            stateOnActive = ch.stream().state();
            streamId = ch.stream().id();
            super.channelActive(ctx);
        }

        @Override
        public void channelInactive(ChannelHandlerContext ctx) throws Exception {
            channelInactiveCalled = true;
            super.channelInactive(ctx);
        }
    }

    protected abstract C newCodec(ChannelHandler upgradeHandler);

    protected abstract ChannelHandler newMultiplexer(ChannelHandler upgradeHandler);

    @Test
    public void upgradeHandlerGetsActivated() throws Exception {
        UpgradeHandler upgradeHandler = new UpgradeHandler();
        C codec = newCodec(upgradeHandler);
        EmbeddedChannel ch = new EmbeddedChannel(codec, newMultiplexer(upgradeHandler));

        codec.onHttpClientUpgrade();

        assertFalse(upgradeHandler.stateOnActive.localSideOpen());
        assertTrue(upgradeHandler.stateOnActive.remoteSideOpen());
        assertNotNull(codec.connection().stream(Http2CodecUtil.HTTP_UPGRADE_STREAM_ID).getProperty(codec.streamKey));
        assertEquals(Http2CodecUtil.HTTP_UPGRADE_STREAM_ID, upgradeHandler.streamId);
        assertTrue(ch.finishAndReleaseAll());
        assertTrue(upgradeHandler.channelInactiveCalled);
    }

    @Test
    public void clientUpgradeWithoutUpgradeHandlerThrowsHttp2Exception() throws Http2Exception {
        final C codec = newCodec(null);
        final EmbeddedChannel ch = new EmbeddedChannel(codec, newMultiplexer(null));

        assertThrows(Http2Exception.class, new Executable() {
            @Override
            public void execute() throws Http2Exception {
                try {
                    codec.onHttpClientUpgrade();
                } finally {
                    ch.finishAndReleaseAll();
                }
            }
        });
    }
}

Defined In

Source

Frequently Asked Questions

What is the Http2MultiplexClientUpgradeTest class?
Http2MultiplexClientUpgradeTest is a class in the netty codebase, defined in codec-http2/src/test/java/io/netty/handler/codec/http2/Http2MultiplexClientUpgradeTest.java.
Where is Http2MultiplexClientUpgradeTest defined?
Http2MultiplexClientUpgradeTest is defined in codec-http2/src/test/java/io/netty/handler/codec/http2/Http2MultiplexClientUpgradeTest.java at line 30.

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