Example usage for io.netty.util CharsetUtil decoder

Introduction

In this page you can find the example usage for io.netty.util CharsetUtil decoder.

Prototype

public static CharsetDecoder decoder(Charset charset) 

Source Link

Document

Returns a cached thread-local CharsetDecoder for the specified Charset .

Usage

From source file:io.gatling.netty.util.ahc.ByteBufUtils.java

License:Apache License

private static CharBuffer decode(ByteBuf src, Charset charset) {
    int readerIndex = src.readerIndex();
    int len = src.readableBytes();
    final CharsetDecoder decoder = CharsetUtil.decoder(charset);
    CharBuffer dst = pooledCharBuffer(len, decoder);
    if (src.nioBufferCount() == 1) {
        // Use internalNioBuffer(...) to reduce object creation.
        // BEWARE: NOT THREAD-SAFE
        decode(decoder, src.internalNioBuffer(readerIndex, len), dst);
    } else {/*ww  w  . j  a  v  a2 s  .c  o  m*/
        // We use a heap buffer as CharsetDecoder is most likely able to use a fast-path if src and dst buffers
        // are both backed by a byte array.
        ByteBuf buffer = src.alloc().heapBuffer(len);
        try {
            buffer.writeBytes(src, readerIndex, len);
            // Use internalNioBuffer(...) to reduce object creation.
            decode(decoder, buffer.internalNioBuffer(buffer.readerIndex(), len), dst);
        } finally {
            // Release the temporary buffer again.
            buffer.release();
        }
    }
    dst.flip();
    return dst;
}

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