Example usage for io.netty.channel ChannelHandlerContext alloc

Introduction

In this page you can find the example usage for io.netty.channel ChannelHandlerContext alloc.

Prototype

ByteBufAllocator alloc();

Source Link

Document

Return the assigned ByteBufAllocator which will be used to allocate ByteBuf s.

Usage

From source file:uk.co.thinkofdeath.thinkcraft.bukkit.web.ResourcesServer.java

License:Apache License

@Override
public void handle(ChannelHandlerContext context, URI uri, FullHttpRequest request) throws Exception {
    File file = new File(plugin.getResourceDir(), uri.getPath().substring("/resources/".length()));
    if (!file.exists()) {
        sendHttpResponse(context, request, new DefaultFullHttpResponse(HTTP_1_1, NOT_FOUND));
        return;//from w ww.  java2  s. c  o m
    }

    String modified = request.headers().get(IF_MODIFIED_SINCE);
    if (modified != null && !modified.isEmpty()) {
        Date modifiedDate = format.parse(modified);

        if (modifiedDate.equals(plugin.getStartUpDate())) {
            sendHttpResponse(context, request, new DefaultFullHttpResponse(HTTP_1_1, NOT_MODIFIED));
            return;
        }
    }

    ByteBuf buffer;
    try (InputStream stream = new FileInputStream(file)) {
        ByteBufOutputStream out = new ByteBufOutputStream(context.alloc().buffer());
        IOUtils.copy(stream, out);
        buffer = out.buffer();
        out.close();
    }

    FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK, buffer);

    response.headers().set(DATE, format.format(new Date()));
    response.headers().set(LAST_MODIFIED, format.format(plugin.getStartUpDate()));

    if (uri.getPath().startsWith("/resources/assets")) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(new Date());
        calendar.add(Calendar.MONTH, 1);
        response.headers().set(EXPIRES, format.format(calendar.getTime()));
        response.headers().set(CACHE_CONTROL, "public, max-age=2592000");
    }

    String path = uri.getPath();
    String ext = path.substring(path.lastIndexOf('.') + 1);
    String type = mimeTypes.containsKey(ext) ? mimeTypes.get(ext) : "text/plain";
    if (type.startsWith("text/")) {
        type += "; charset=UTF-8";
    }
    response.headers().set(CONTENT_TYPE, type);
    response.headers().add("Access-Control-Allow-Origin", "*");
    sendHttpResponse(context, request, response);
}