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TestNumReadsRecvByteBufAllocator Class — netty Architecture

Architecture documentation for the TestNumReadsRecvByteBufAllocator class in TestChannelInitializer.java from the netty codebase.

Class java

Entity Profile

Dependency Diagram

graph TD
  ead91d8a_8f94_e725_b13c_1ef2f0315bdd["TestNumReadsRecvByteBufAllocator"]
  a1d4214d_7c3f_2a95_0423_d9c11fead4b0["TestChannelInitializer.java"]
  ead91d8a_8f94_e725_b13c_1ef2f0315bdd -->|defined in| a1d4214d_7c3f_2a95_0423_d9c11fead4b0
  28aa52f6_1180_e087_a53b_84ed9f6eb5d4["TestNumReadsRecvByteBufAllocator()"]
  ead91d8a_8f94_e725_b13c_1ef2f0315bdd -->|method| 28aa52f6_1180_e087_a53b_84ed9f6eb5d4
  f1e0ebf3_4803_e35b_ca61_2d627c7fbced["ExtendedHandle()"]
  ead91d8a_8f94_e725_b13c_1ef2f0315bdd -->|method| f1e0ebf3_4803_e35b_ca61_2d627c7fbced

Relationship Graph

Source Code

codec-http2/src/test/java/io/netty/handler/codec/http2/TestChannelInitializer.java lines 53–121

    static final class TestNumReadsRecvByteBufAllocator implements RecvByteBufAllocator {
        private final AtomicInteger numReads;
        private TestNumReadsRecvByteBufAllocator(AtomicInteger numReads) {
            this.numReads = numReads;
        }

        @Override
        public ExtendedHandle newHandle() {
            return new ExtendedHandle() {
                private int attemptedBytesRead;
                private int lastBytesRead;
                private int numMessagesRead;
                @Override
                public ByteBuf allocate(ByteBufAllocator alloc) {
                    return alloc.ioBuffer(guess(), guess());
                }

                @Override
                public int guess() {
                    return 1; // only ever allocate buffers of size 1 to ensure the number of reads is controlled.
                }

                @Override
                public void reset(ChannelConfig config) {
                    numMessagesRead = 0;
                }

                @Override
                public void incMessagesRead(int numMessages) {
                    numMessagesRead += numMessages;
                }

                @Override
                public void lastBytesRead(int bytes) {
                    lastBytesRead = bytes;
                }

                @Override
                public int lastBytesRead() {
                    return lastBytesRead;
                }

                @Override
                public void attemptedBytesRead(int bytes) {
                    attemptedBytesRead = bytes;
                }

                @Override
                public int attemptedBytesRead() {
                    return attemptedBytesRead;
                }

                @Override
                public boolean continueReading() {
                    return numMessagesRead < numReads.get();
                }

                @Override
                public boolean continueReading(UncheckedBooleanSupplier maybeMoreDataSupplier) {
                    return continueReading();
                }

                @Override
                public void readComplete() {
                    // Nothing needs to be done or adjusted after each read cycle is completed.
                }
            };
        }
    }

Defined In

Source

Frequently Asked Questions

What is the TestNumReadsRecvByteBufAllocator class?
TestNumReadsRecvByteBufAllocator is a class in the netty codebase, defined in codec-http2/src/test/java/io/netty/handler/codec/http2/TestChannelInitializer.java.
Where is TestNumReadsRecvByteBufAllocator defined?
TestNumReadsRecvByteBufAllocator is defined in codec-http2/src/test/java/io/netty/handler/codec/http2/TestChannelInitializer.java at line 53.

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