Component() — netty Function Reference

Architecture documentation for the Component() function in FixedCompositeByteBuf.java from the netty codebase.

Function java Buffer Search calls 1 called by 1

Entity Profile

Buffer→ Search→ Component() — netty Function Reference

Dependency Diagram

graph TD
  945846ae_77bc_776f_0c1e_106f4a68dfb3["Component()"]
  c3651b69_631a_1f76_b70c_086b089609c2["FixedCompositeByteBuf"]
  945846ae_77bc_776f_0c1e_106f4a68dfb3 -->|defined in| c3651b69_631a_1f76_b70c_086b089609c2
  f0de115a_8919_527d_c6d2_3304a2a6aaf0["Component()"]
  f0de115a_8919_527d_c6d2_3304a2a6aaf0 -->|calls| 945846ae_77bc_776f_0c1e_106f4a68dfb3
  f0de115a_8919_527d_c6d2_3304a2a6aaf0["Component()"]
  945846ae_77bc_776f_0c1e_106f4a68dfb3 -->|calls| f0de115a_8919_527d_c6d2_3304a2a6aaf0
  style 945846ae_77bc_776f_0c1e_106f4a68dfb3 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

buffer/src/main/java/io/netty/buffer/FixedCompositeByteBuf.java lines 229–250

    private Component findComponent(int index) {
        int readable = 0;
        for (int i = 0 ; i < buffers.length; i++) {
            Component comp = null;
            ByteBuf b = buffers[i];
            if (b instanceof Component) {
                comp = (Component) b;
                b = comp.buf;
            }
            readable += b.readableBytes();
            if (index < readable) {
                if (comp == null) {
                    // Create a new component and store it in the array so it not create a new object
                    // on the next access.
                    comp = new Component(i, readable - b.readableBytes(), b);
                    buffers[i] = comp;
                }
                return comp;
            }
        }
        throw new IllegalStateException();
    }