@Override
    public void write(IApimanBuffer chunk) {
        if (bodyHandler != null) {
            bodyHandler.handle(chunk);
        }
    }
@see io.apiman.gateway.engine.io.IWriteStream#write(io.apiman.gateway.engine.io.IApimanBuffer)
gateway/engine/core/src/main/java/io/apiman/gateway/engine/io/AbstractStream.java