Java CharsetUtil類代碼示例

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
@Override
@SuppressWarnings("unchecked")
protected SearchResponse createResponse(HttpContext<SearchRequest, SearchResponse> httpContext) throws IOException {
    if (httpContext == null) {
        throw new IllegalStateException("no http context");
    }
    HttpResponse httpResponse = httpContext.getHttpResponse();
    logger.info("{}", httpResponse.getContent().toString(CharsetUtil.UTF_8));
    BytesReference ref = new ChannelBufferBytesReference(httpResponse.getContent());
    Map<String, Object> map = JsonXContent.jsonXContent.createParser(ref).map();

    logger.info("{}", map);

    InternalSearchResponse internalSearchResponse = parseInternalSearchResponse(map);
    String scrollId = (String) map.get(SCROLL_ID);
    int totalShards = 0;
    int successfulShards = 0;
    if (map.containsKey(SHARDS)) {
        Map<String, ?> shards = (Map<String, ?>) map.get(SHARDS);
        totalShards = shards.containsKey(TOTAL) ? (Integer) shards.get(TOTAL) : -1;
        successfulShards = shards.containsKey(SUCCESSFUL) ? (Integer) shards.get(SUCCESSFUL) : -1;
    }
    int tookInMillis = map.containsKey(TOOK) ? (Integer) map.get(TOOK) : -1;
    ShardSearchFailure[] shardFailures = null;
    return new SearchResponse(internalSearchResponse, scrollId, totalShards, successfulShards, tookInMillis, shardFailures);
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
private static String readString(ChannelBuffer cb, int length)
{
    try
    {
        String str = cb.toString(cb.readerIndex(), length, CharsetUtil.UTF_8);
        cb.readerIndex(cb.readerIndex() + length);
        return str;
    }
    catch (IllegalStateException e)
    {
        // That's the way netty encapsulate a CCE
        if (e.getCause() instanceof CharacterCodingException)
            throw new ProtocolException("Cannot decode string as UTF8");
        else
            throw e;
    }
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
private static void sendHttpResponse(ChannelHandlerContext ctx, HttpRequest req, HttpResponse res)
{
	// Generate an error page if response status code is not OK (200).
	if (res.getStatus().getCode() != 200)
	{
		res.setContent(ChannelBuffers.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8));
		setContentLength(res, res.getContent().readableBytes());
	}
	
	// Send the response and close the connection if necessary.
	ChannelFuture f = ctx.getChannel().write(res);
	if (!isKeepAlive(req) || (res.getStatus().getCode() != 200))
	{
		f.addListener(ChannelFutureListener.CLOSE);
	}
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
static ByteBuffer encodeString(CharBuffer src, Charset charset) {
    final CharsetEncoder encoder = CharsetUtil.getEncoder(charset);
    final ByteBuffer dst = ByteBuffer.allocate(
            (int) ((double) src.remaining() * encoder.maxBytesPerChar()));
    try {
        CoderResult cr = encoder.encode(src, dst, true);
        if (!cr.isUnderflow()) {
            cr.throwException();
        }
        cr = encoder.flush(dst);
        if (!cr.isUnderflow()) {
            cr.throwException();
        }
    } catch (CharacterCodingException x) {
        throw new IllegalStateException(x);
    }
    dst.flip();
    return dst;
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
static String decodeString(ByteBuffer src, Charset charset) {
    final CharsetDecoder decoder = CharsetUtil.getDecoder(charset);
    final CharBuffer dst = CharBuffer.allocate(
            (int) ((double) src.remaining() * decoder.maxCharsPerByte()));
    try {
        CoderResult cr = decoder.decode(src, dst, true);
        if (!cr.isUnderflow()) {
            cr.throwException();
        }
        cr = decoder.flush(dst);
        if (!cr.isUnderflow()) {
            cr.throwException();
        }
    } catch (CharacterCodingException x) {
        throw new IllegalStateException(x);
    }
    return dst.flip().toString();
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
private void writeResponse(MessageEvent e) {
  HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
  response.setHeader(HttpHeaders.Names.CONTENT_TYPE, "application/json; charset=UTF-8");

  ChannelBuffer content = ChannelBuffers.dynamicBuffer();
  Writer writer = new OutputStreamWriter(new ChannelBufferOutputStream(content), CharsetUtil.UTF_8);
  reportAdapter.toJson(report.get(), writer);
  try {
    writer.close();
  } catch (IOException e1) {
    LOG.error("error writing resource report", e1);
  }
  response.setContent(content);
  ChannelFuture future = e.getChannel().write(response);
  future.addListener(ChannelFutureListener.CLOSE);
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
private static void sendStatus(HttpResponse response, @Nullable HttpRequest request, Channel channel, @Nullable String description) {
  response.setHeader(CONTENT_TYPE, "text/html");
  if (request == null || request.getMethod() != HttpMethod.HEAD) {
    String message = response.getStatus().toString();

    StringBuilder builder = new StringBuilder();
    builder.append("<!doctype html><title>").append(message).append("</title>").append("<h1 style=\"text-align: center\">").append(message).append("</h1>");
    if (description != null) {
      builder.append("<p>").append(description).append("</p>");
    }
    builder.append("<hr/><p style=\"text-align: center\">").append(StringUtil.notNullize(getServerHeaderValue(), "")).append("</p>");

    response.setContent(ChannelBuffers.copiedBuffer(builder, CharsetUtil.UTF_8));
  }
  send(response, channel, request);
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
@Override
@SuppressWarnings("unchecked")
protected SearchResponse createResponse(HttpInvocationContext<SearchRequest,SearchResponse> httpInvocationContext) throws IOException {
    if (httpInvocationContext == null) {
        throw new IllegalStateException("no http context");
    }
    HttpResponse httpResponse = httpInvocationContext.getHttpResponse();
    logger.info("{}", httpResponse.getContent().toString(CharsetUtil.UTF_8));
    BytesReference ref = new ChannelBufferBytesReference(httpResponse.getContent());
    Map<String,Object> map = JsonXContent.jsonXContent.createParser(ref).map();

    logger.info("{}", map);

    InternalSearchResponse internalSearchResponse = parseInternalSearchResponse(map);
    String scrollId = (String)map.get(SCROLL_ID);
    int totalShards = 0;
    int successfulShards = 0;
    if (map.containsKey(SHARDS)) {
        Map<String,?> shards = (Map<String,?>)map.get(SHARDS);
        totalShards =  shards.containsKey(TOTAL) ? (Integer)shards.get(TOTAL) : -1;
        successfulShards =  shards.containsKey(SUCCESSFUL) ? (Integer)shards.get(SUCCESSFUL) : -1;
    }
    int tookInMillis = map.containsKey(TOOK) ? (Integer)map.get(TOOK) : -1;
    ShardSearchFailure[] shardFailures = parseShardFailures(map);
    return new SearchResponse(internalSearchResponse, scrollId, totalShards, successfulShards, tookInMillis, shardFailures);
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
public static ByePacket decode(ChannelBuffer buffer, boolean hasPadding, byte innerBlocks, int length) {
    ByePacket packet = new ByePacket();
    int read = 0;
    for (int i = 0; i < innerBlocks; i++) {
        packet.addSsrc(buffer.readUnsignedInt());
        read += 4;
    }

    // Length is written in 32bit words, not octet count.
    int lengthInOctets = (length * 4);
    if (read < lengthInOctets) {
        byte[] reasonBytes = new byte[buffer.readUnsignedByte()];
        buffer.readBytes(reasonBytes);
        packet.reasonForLeaving = new String(reasonBytes, CharsetUtil.UTF_8);
        read += (1 + reasonBytes.length);
        if (read < lengthInOctets) {
            // Skip remaining bytes (used for padding). This takes care of both the null termination bytes (padding
            // of the 'reason for leaving' string and the packet padding bytes.
            buffer.skipBytes(lengthInOctets - read);
        }
    }

    return packet;
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
public void sendMessage(SipRequest request) throws Exception {

        // initial line
        StringBuffer buf = new StringBuffer(String.format("%s %s %s", request.getMethod().name(),
                request.getUri(), request.getVersion().toString()));
        buf.append(StringUtil.NEWLINE);

        // headers
        for (Map.Entry<String, List<String>> header : request.getHeaders().entrySet()) {
            buf.append(header.getKey());
            buf.append(": ");
            buf.append(StringUtils.arrayToDelimitedString(header.getValue().toArray(), "\n"));
            buf.append(StringUtil.NEWLINE);
        }
        buf.append(StringUtil.NEWLINE);

        // content
        ChannelBuffer content = request.getContent();
        if (content.readable()) {
            buf.append(content.toString(CharsetUtil.UTF_8)).append(StringUtil.NEWLINE);
        }

        sendMessage(null, buf.toString());
    }
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
public static ChannelBuffer getContent( String webSocketLocation ) {
    return ChannelBuffers.copiedBuffer(
            "<html><head><title>Web Socket Test</title></head>" + NEWLINE + "<body>" + NEWLINE
                    + "<script type=\"text/javascript\">" + NEWLINE + "var socket;" + NEWLINE
                    + "if (window.WebSocket) {" + NEWLINE + "  socket = new WebSocket(\"" + webSocketLocation
                    + "/00000000-0000-0000-0000-000000000001/users/00000000-0000-0000-0000-000000000002?a=1\");"
                    + NEWLINE + "  socket.onmessage = function(event) { alert(event.data); };" + NEWLINE
                    + "  socket.onopen = function(event) { alert(\"Web Socket opened!\"); };" + NEWLINE
                    + "  socket.onclose = function(event) { alert(\"Web Socket closed.\"); };" + NEWLINE
                    + "} else {" + NEWLINE + "  alert(\"Your browser does not support Web Socket.\");" + NEWLINE
                    + "}" + NEWLINE + "" + NEWLINE + "function send(message) {" + NEWLINE
                    + "  if (!window.WebSocket) { return; }" + NEWLINE + "  if (socket.readyState == 1) {" + NEWLINE
                    + "    socket.send(message);" + NEWLINE + "  } else {" + NEWLINE
                    + "    alert(\"The socket is not open.\");" + NEWLINE + "  }" + NEWLINE + "}" + NEWLINE
                    + "</script>" + NEWLINE + "<form onsubmit=\"return false;\">" + NEWLINE
                    + "<input type=\"text\" name=\"message\" value=\"Hello, World!\"/>"
                    + "<input type=\"button\" value=\"Send Web Socket Data\" onclick=\"send(this.form.message" +
                    ".value)\" />" + NEWLINE + "</form>" + NEWLINE + "</body>" + NEWLINE + "</html>" + NEWLINE,
            CharsetUtil.US_ASCII );
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
public void start() {
    ExecutorService bossPool = Executors.newCachedThreadPool();
    log.info("Creating worker thread pool with " + workers + " threads.");
    ExecutorService workerPool = Executors.newFixedThreadPool(workers);
    bootstrap = new ServerBootstrap(new NioServerSocketChannelFactory(bossPool, workerPool));
    jmxRequestHandler = new JmxRequestHandler();
    bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
        public ChannelPipeline getPipeline() throws Exception {
            return Channels.pipeline(
                    new DelimiterBasedFrameDecoder(1024 * 1024, ChannelBuffers
                            .copiedBuffer("\n", CharsetUtil.UTF_8)), new StringDecoder(), new StringEncoder(),
                    jmxRequestHandler);
        };
    });
    bootstrap.bind(listenAddress);
    log.info("Starting listening to {}", listenAddress);
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
private void simpleResponse(HttpResponseStatus status, String body) {
    if (body == null) {
        simpleResponse(status);
        return;
    }
    HttpResponse response = prepareResponse(status);
    if (!body.endsWith("\n")) {
        body += "\n";
    }
    HttpHeaders.setContentLength(response, body.length());
    response.setContent(ChannelBuffers.copiedBuffer(body, CharsetUtil.UTF_8));
    sendResponse(response);
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
protected void sendError(ChannelHandlerContext ctx, String message,
    HttpResponseStatus status) {
  HttpResponse response = new DefaultHttpResponse(HTTP_1_1, status);
  response.setHeader(CONTENT_TYPE, "text/plain; charset=UTF-8");
  // Put shuffle version into http header
  response.setHeader(ShuffleHeader.HTTP_HEADER_NAME,
      ShuffleHeader.DEFAULT_HTTP_HEADER_NAME);
  response.setHeader(ShuffleHeader.HTTP_HEADER_VERSION,
      ShuffleHeader.DEFAULT_HTTP_HEADER_VERSION);
  response.setContent(
    ChannelBuffers.copiedBuffer(message, CharsetUtil.UTF_8));

  // Close the connection as soon as the error message is sent.
  ctx.getChannel().write(response).addListener(ChannelFutureListener.CLOSE);
}
 

import org.jboss.netty.util.CharsetUtil; //導入依賴的package包/類
private void writeResponse(MessageEvent e) 
{
    // Build the response object.
    HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
    
    response.setContent(ChannelBuffers.copiedBuffer(buf.toString(), CharsetUtil.UTF_8));
    response.setHeader(CONTENT_TYPE, "text/plain; charset=UTF-8");

    // Write the response.
    ChannelFuture future = e.getChannel().write(response);

    // Close the non-keep-alive connection after the write operation is done.
    future.addListener(ChannelFutureListener.CLOSE);
}