StringDecoder Class — netty Architecture

Source Code

codec-base/src/main/java/io/netty/handler/codec/string/StringDecoder.java lines 55–80

@Sharable
public class StringDecoder extends MessageToMessageDecoder<ByteBuf> {

    // TODO Use CharsetDecoder instead.
    private final Charset charset;

    /**
     * Creates a new instance with the current system character set.
     */
    public StringDecoder() {
        this(Charset.defaultCharset());
    }

    /**
     * Creates a new instance with the specified character set.
     */
    public StringDecoder(Charset charset) {
        super(ByteBuf.class);
        this.charset = ObjectUtil.checkNotNull(charset, "charset");
    }

    @Override
    protected void decode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) throws Exception {
        out.add(msg.toString(charset));
    }
}