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ProtobufDecoderNano Class — netty Architecture

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

Class java

Entity Profile

Dependency Diagram

graph TD
  5026f899_3152_4967_182c_1f98ed56e525["ProtobufDecoderNano"]
  b8c67c29_4d8c_9245_f7e5_b24e9c1301cf["ProtobufDecoderNano.java"]
  5026f899_3152_4967_182c_1f98ed56e525 -->|defined in| b8c67c29_4d8c_9245_f7e5_b24e9c1301cf
  47eeacfe_5665_cb3c_4a6e_ee86230a333a["ProtobufDecoderNano()"]
  5026f899_3152_4967_182c_1f98ed56e525 -->|method| 47eeacfe_5665_cb3c_4a6e_ee86230a333a
  1441d3aa_2ead_f9d4_ff1f_df2ff53ef6e7["decode()"]
  5026f899_3152_4967_182c_1f98ed56e525 -->|method| 1441d3aa_2ead_f9d4_ff1f_df2ff53ef6e7

Relationship Graph

Source Code

codec-protobuf/src/main/java/io/netty/handler/codec/protobuf/ProtobufDecoderNano.java lines 62–89

@Sharable
public class ProtobufDecoderNano extends MessageToMessageDecoder<ByteBuf> {
    private final Class<? extends MessageNano> clazz;
    /**
     * Creates a new instance.
     */
    public ProtobufDecoderNano(Class<? extends MessageNano> clazz) {
        super(ByteBuf.class);
        this.clazz = ObjectUtil.checkNotNull(clazz, "You must provide a Class");
    }

    @Override
    protected void decode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out)
            throws Exception {
        final byte[] array;
        final int offset;
        final int length = msg.readableBytes();
        if (msg.hasArray()) {
            array = msg.array();
            offset = msg.arrayOffset() + msg.readerIndex();
        } else {
            array = ByteBufUtil.getBytes(msg, msg.readerIndex(), length, false);
            offset = 0;
        }
        MessageNano prototype = clazz.getConstructor().newInstance();
        out.add(MessageNano.mergeFrom(prototype, array, offset, length));
    }
}

Defined In

Source

Frequently Asked Questions

What is the ProtobufDecoderNano class?
ProtobufDecoderNano is a class in the netty codebase, defined in codec-protobuf/src/main/java/io/netty/handler/codec/protobuf/ProtobufDecoderNano.java.
Where is ProtobufDecoderNano defined?
ProtobufDecoderNano is defined in codec-protobuf/src/main/java/io/netty/handler/codec/protobuf/ProtobufDecoderNano.java at line 62.

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