io.netty.handler.codec.http.DefaultLastHttpContent Java Examples

private void handleThrowable(MicroservicesRegistryImpl currentMicroservicesRegistry, Throwable throwable,
                             Request request) {
    Optional<ExceptionMapper> exceptionMapper = currentMicroservicesRegistry.getExceptionMapper(throwable);
    if (exceptionMapper.isPresent()) {
        org.wso2.msf4j.Response msf4jResponse = new org.wso2.msf4j.Response(request);
        msf4jResponse.setEntity(exceptionMapper.get().toResponse(throwable));
        msf4jResponse.send();
    } else {
        log.warn("Unmapped exception", throwable);
        try {
            HttpCarbonMessage response = HttpUtil.createTextResponse(
                    javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR.getStatusCode(),
                    "Exception occurred :" + throwable.getMessage());
            response.setHeader("Content-type", "text/plain");
            response.addHttpContent(new DefaultLastHttpContent());
            request.respond(response);
        } catch (ServerConnectorException e) {
            log.error("Error while sending the response.", e);
        }
    }
}
 

@Override
public void beforeRequest(Channel clientChannel, HttpRequest httpRequest, HttpProxyInterceptPipeline pipeline) throws Exception {
  String acceptValue = httpRequest.headers().get(HttpHeaderNames.ACCEPT);
  if (acceptValue != null && acceptValue.contains("application/x-sniff-cookie")) {
    HttpResponse httpResponse = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK, new DefaultHttpHeaders());
    httpResponse.headers().set(HttpHeaderNames.CONTENT_LENGTH, 0);
    //https://developer.mozilla.org/zh-CN/docs/Web/HTTP/Headers/Access-Control-Expose-Headers
    AsciiString customHeadKey = AsciiString.cached("X-Sniff-Cookie");
    String cookie = pipeline.getHttpRequest().headers().get(HttpHeaderNames.COOKIE);
    httpResponse.headers().set(customHeadKey, cookie == null ? "" : cookie);
    httpResponse.headers().set(HttpHeaderNames.ACCESS_CONTROL_EXPOSE_HEADERS, customHeadKey);
    String origin = httpRequest.headers().get(HttpHeaderNames.ORIGIN);
    if (StringUtil.isNullOrEmpty(origin)) {
      String referer = httpRequest.headers().get(HttpHeaderNames.REFERER);
      URL url = new URL(referer);
      origin = url.getHost();
    }
    httpResponse.headers().set(HttpHeaderNames.ACCESS_CONTROL_ALLOW_ORIGIN, origin);
    httpResponse.headers().set(HttpHeaderNames.ACCESS_CONTROL_ALLOW_CREDENTIALS, true);
    clientChannel.writeAndFlush(httpResponse);
    clientChannel.writeAndFlush(new DefaultLastHttpContent());
    clientChannel.close();
  } else {
    super.beforeRequest(clientChannel, httpRequest, pipeline);
  }
}
 

/**
 * Create a CarbonMessage for a specific status code.
 *
 * @param status HTTP status code
 * @param msg message text
 * @return CarbonMessage representing the status
 */
public static HttpCarbonMessage createTextResponse(int status, String msg) {
    HttpCarbonMessage response = new HttpCarbonMessage(
            new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.valueOf(status)));
    response.setHttpStatusCode(status);
    if (msg != null) {
        response.setHeader(HttpHeaders.CONTENT_LENGTH, String.valueOf(msg.length()));
        byte[] msgArray = null;
        try {
            msgArray = msg.getBytes("UTF-8");
        } catch (UnsupportedEncodingException e) {
            throw new RuntimeException("Failed to get the byte array from responseValue", e);
        }
        ByteBuffer byteBuffer = ByteBuffer.allocate(msgArray.length);
        byteBuffer.put(msgArray);
        byteBuffer.flip();
        response.addHttpContent(new DefaultLastHttpContent(Unpooled.wrappedBuffer(byteBuffer)));
    } else {
        response.setHeader(HttpHeaders.CONTENT_LENGTH, "0");
    }
    return response;
}
 

/**
 * Sends the provided {@code httpRequest} and verifies that the response is an echo of the {@code restMethod}.
 * @param channel the {@link EmbeddedChannel} to send the request over.
 * @param httpMethod the {@link HttpMethod} for the request.
 * @param restMethod the equivalent {@link RestMethod} for {@code httpMethod}. Used to check for correctness of
 *                   response.
 * @param isKeepAlive if the request needs to be keep-alive.
 * @throws IOException
 */
private void sendRequestCheckResponse(EmbeddedChannel channel, HttpMethod httpMethod, RestMethod restMethod,
    boolean isKeepAlive) throws IOException {
  long requestId = REQUEST_ID_GENERATOR.getAndIncrement();
  String uri = MockRestRequestService.ECHO_REST_METHOD + requestId;
  HttpRequest httpRequest = RestTestUtils.createRequest(httpMethod, uri, null);
  HttpUtil.setKeepAlive(httpRequest, isKeepAlive);
  channel.writeInbound(httpRequest);
  channel.writeInbound(new DefaultLastHttpContent());
  HttpResponse response = (HttpResponse) channel.readOutbound();
  assertEquals("Unexpected response status", HttpResponseStatus.OK, response.status());
  // MockRestRequestService echoes the RestMethod + request id.
  String expectedResponse = restMethod.toString() + requestId;
  assertEquals("Unexpected content", expectedResponse,
      RestTestUtils.getContentString((HttpContent) channel.readOutbound()));
  assertTrue("End marker was expected", channel.readOutbound() instanceof LastHttpContent);
}
 

@Test
public void shouldParseErrorWithDesignNotFound() throws Exception {
    String response = Resources.read("designdoc_notfound.json", this.getClass());
    HttpResponse responseHeader = new DefaultHttpResponse(HttpVersion.HTTP_1_1, new HttpResponseStatus(404, "Object Not Found"));
    HttpContent responseChunk1 = new DefaultLastHttpContent(Unpooled.copiedBuffer(response, CharsetUtil.UTF_8));

    ViewQueryRequest requestMock = mock(ViewQueryRequest.class);
    queue.add(requestMock);
    channel.writeInbound(responseHeader, responseChunk1);
    latch.await(1, TimeUnit.SECONDS);
    assertEquals(1, firedEvents.size());
    ViewQueryResponse inbound = (ViewQueryResponse) firedEvents.get(0);
    assertFalse(inbound.status().isSuccess());
    assertEquals(ResponseStatus.NOT_EXISTS, inbound.status());

    assertEquals(0, countAndRelease(inbound.rows()));

    String error = inbound.error().toBlocking().single();
    assertEquals("{\"errors\":[{\"error\":\"not_found\",\"reason\":\"Design document _design/designdoc not found\"}]}", error);

}
 

@Test
public void shouldParseErrorAfterRows() throws Exception {
    String response = Resources.read("error_rows.json", this.getClass());
    HttpResponse responseHeader = new DefaultHttpResponse(HttpVersion.HTTP_1_1, new HttpResponseStatus(200, "OK"));
    HttpContent responseChunk1 = new DefaultLastHttpContent(Unpooled.copiedBuffer(response, CharsetUtil.UTF_8));

    ViewQueryRequest requestMock = mock(ViewQueryRequest.class);
    queue.add(requestMock);
    channel.writeInbound(responseHeader, responseChunk1);
    latch.await(1, TimeUnit.SECONDS);
    assertEquals(1, firedEvents.size());
    ViewQueryResponse inbound = (ViewQueryResponse) firedEvents.get(0);
    assertTrue(inbound.status().isSuccess());

    assertEquals(10, countAndRelease(inbound.rows()));

    String error = inbound.error().toBlocking().single();
    Map<String, Object> parsed = DefaultObjectMapper.readValueAsMap(error);
    assertEquals(1, parsed.size());
    assertNotNull(parsed.get("errors"));
}
 

@Test
public void testEncodeDataEndAsClient() throws Exception {
    EmbeddedChannel ch = new EmbeddedChannel(new Http2StreamFrameToHttpObjectCodec(false));
    ByteBuf hello = Unpooled.copiedBuffer("hello world", CharsetUtil.UTF_8);
    LastHttpContent end = new DefaultLastHttpContent(hello, true);
    assertTrue(ch.writeOutbound(end));

    Http2DataFrame dataFrame = ch.readOutbound();
    try {
        assertThat(dataFrame.content().toString(CharsetUtil.UTF_8), is("hello world"));
        assertTrue(dataFrame.isEndStream());
    } finally {
        dataFrame.release();
    }

    assertThat(ch.readOutbound(), is(nullValue()));
    assertFalse(ch.finish());
}
 

@Test
public void testUpgradeDataEndWithTrailers() throws Exception {
    EmbeddedChannel ch = new EmbeddedChannel(new Http2StreamFrameToHttpObjectCodec(true));
    ByteBuf hello = Unpooled.copiedBuffer("hello world", CharsetUtil.UTF_8);
    LastHttpContent trailers = new DefaultLastHttpContent(hello, true);
    HttpHeaders headers = trailers.trailingHeaders();
    headers.set("key", "value");
    assertTrue(ch.writeOutbound(trailers));

    Http2DataFrame dataFrame = ch.readOutbound();
    try {
        assertThat(dataFrame.content().toString(CharsetUtil.UTF_8), is("hello world"));
        assertFalse(dataFrame.isEndStream());
    } finally {
        dataFrame.release();
    }

    Http2HeadersFrame headerFrame = ch.readOutbound();
    assertThat(headerFrame.headers().get("key").toString(), is("value"));
    assertTrue(headerFrame.isEndStream());

    assertThat(ch.readOutbound(), is(nullValue()));
    assertFalse(ch.finish());
}
 

@Test
public void shouldParseErrorWithEmptyRows() throws Exception {
    String response = Resources.read("error_empty_rows.json", this.getClass());
    HttpResponse responseHeader = new DefaultHttpResponse(HttpVersion.HTTP_1_1, new HttpResponseStatus(200, "OK"));
    HttpContent responseChunk1 = new DefaultLastHttpContent(Unpooled.copiedBuffer(response, CharsetUtil.UTF_8));

    ViewQueryRequest requestMock = mock(ViewQueryRequest.class);
    queue.add(requestMock);
    channel.writeInbound(responseHeader, responseChunk1);
    latch.await(1, TimeUnit.SECONDS);
    assertEquals(1, firedEvents.size());
    ViewQueryResponse inbound = (ViewQueryResponse) firedEvents.get(0);
    assertTrue(inbound.status().isSuccess());

    assertEquals(0, countAndRelease(inbound.rows()));

    String error = inbound.error().toBlocking().single();
    Map<String, Object> parsed = DefaultObjectMapper.readValueAsMap(error);
    assertEquals(1, parsed.size());
    assertNotNull(parsed.get("errors"));
}
 

@Test
public void testUpgradeDataEnd() throws Exception {
    EmbeddedChannel ch = new EmbeddedChannel(new Http2StreamFrameToHttpObjectCodec(true));
    ByteBuf hello = Unpooled.copiedBuffer("hello world", CharsetUtil.UTF_8);
    LastHttpContent end = new DefaultLastHttpContent(hello, true);
    assertTrue(ch.writeOutbound(end));

    Http2DataFrame dataFrame = ch.readOutbound();
    try {
        assertThat(dataFrame.content().toString(CharsetUtil.UTF_8), is("hello world"));
        assertTrue(dataFrame.isEndStream());
    } finally {
        dataFrame.release();
    }

    assertThat(ch.readOutbound(), is(nullValue()));
    assertFalse(ch.finish());
}
 

@Test
public void shouldDecodeSuccessfulGetDesignDocumentResponse() throws Exception {
    String response = Resources.read("designdoc_success.json", this.getClass());
    HttpResponse responseHeader = new DefaultHttpResponse(HttpVersion.HTTP_1_1, new HttpResponseStatus(200, "OK"));
    HttpContent responseChunk = new DefaultLastHttpContent(Unpooled.copiedBuffer(response, CharsetUtil.UTF_8));

    GetDesignDocumentRequest requestMock = mock(GetDesignDocumentRequest.class);
    when(requestMock.name()).thenReturn("name");
    when(requestMock.development()).thenReturn(true);
    queue.add(requestMock);
    channel.writeInbound(responseHeader, responseChunk);
    latch.await(1, TimeUnit.SECONDS);
    assertEquals(1, firedEvents.size());
    GetDesignDocumentResponse inbound = (GetDesignDocumentResponse) firedEvents.get(0);

    assertTrue(inbound.status().isSuccess());
    assertEquals("name", inbound.name());
    assertEquals(true, inbound.development());
    assertEquals(response, inbound.content().toString(CharsetUtil.UTF_8));
    ReferenceCountUtil.releaseLater(inbound);
}
 

@Test
public void testFormEncodeIncorrect() throws Exception {
    LastHttpContent content = new DefaultLastHttpContent(
            Unpooled.copiedBuffer("project=netty&&project=netty", CharsetUtil.US_ASCII));
    DefaultHttpRequest req = new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.POST, "/");
    HttpPostRequestDecoder decoder = new HttpPostRequestDecoder(req);
    try {
        decoder.offer(content);
        fail();
    } catch (HttpPostRequestDecoder.ErrorDataDecoderException e) {
        assertTrue(e.getCause() instanceof IllegalArgumentException);
    } finally {
        decoder.destroy();
        content.release();
    }
}
 

@Test
public void testEncodeDataEndWithTrailersAsClient() throws Exception {
    EmbeddedChannel ch = new EmbeddedChannel(new Http2StreamFrameToHttpObjectCodec(false));
    ByteBuf hello = Unpooled.copiedBuffer("hello world", CharsetUtil.UTF_8);
    LastHttpContent trailers = new DefaultLastHttpContent(hello, true);
    HttpHeaders headers = trailers.trailingHeaders();
    headers.set("key", "value");
    assertTrue(ch.writeOutbound(trailers));

    Http2DataFrame dataFrame = ch.readOutbound();
    try {
        assertThat(dataFrame.content().toString(CharsetUtil.UTF_8), is("hello world"));
        assertFalse(dataFrame.isEndStream());
    } finally {
        dataFrame.release();
    }

    Http2HeadersFrame headerFrame = ch.readOutbound();
    assertThat(headerFrame.headers().get("key").toString(), is("value"));
    assertTrue(headerFrame.isEndStream());

    assertThat(ch.readOutbound(), is(nullValue()));
    assertFalse(ch.finish());
}
 

/**
 * Splits the given {@code contentBytes} into {@code numChunks} chunks and stores them in {@code httpContents}.
 * @param contentBytes the content that needs to be split.
 * @param numChunks the number of chunks to split {@code contentBytes} into.
 * @param httpContents the {@link List<HttpContent>} that will contain all the content in parts.
 * @param useCopyForcingByteBuf if {@code true}, uses {@link CopyForcingByteBuf} instead of the default
 *                              {@link ByteBuf}.
 */
private void splitContent(byte[] contentBytes, int numChunks, List<HttpContent> httpContents,
    boolean useCopyForcingByteBuf) {
  int individualPartSize = contentBytes.length / numChunks;
  ByteBuf content;
  for (int addedContentCount = 0; addedContentCount < numChunks - 1; addedContentCount++) {
    if (useCopyForcingByteBuf) {
      content =
          CopyForcingByteBuf.wrappedBuffer(contentBytes, addedContentCount * individualPartSize, individualPartSize);
    } else {
      content = Unpooled.wrappedBuffer(contentBytes, addedContentCount * individualPartSize, individualPartSize);
    }
    httpContents.add(new DefaultHttpContent(content));
  }
  if (useCopyForcingByteBuf) {
    content =
        CopyForcingByteBuf.wrappedBuffer(contentBytes, (numChunks - 1) * individualPartSize, individualPartSize);
  } else {
    content = Unpooled.wrappedBuffer(contentBytes, (numChunks - 1) * individualPartSize, individualPartSize);
  }
  httpContents.add(new DefaultLastHttpContent(content));
}
 

/**
 * Tests for POST request that has no content.
 * @throws Exception
 */
@Test
public void zeroSizeContentTest() throws Exception {
  Channel channel = new MockChannel();
  NettyRequest nettyRequest = createNettyRequest(HttpMethod.POST, "/", null, channel);
  HttpContent httpContent = new DefaultLastHttpContent();

  nettyRequest.addContent(httpContent);
  assertEquals("Reference count is not as expected", 2, httpContent.refCnt());

  ByteBufferAsyncWritableChannel writeChannel = new ByteBufferAsyncWritableChannel();
  ReadIntoCallback callback = new ReadIntoCallback();
  Future<Long> future = nettyRequest.readInto(writeChannel, callback);
  assertEquals("There should be no content", 0, writeChannel.getNextChunk().remaining());
  writeChannel.resolveOldestChunk(null);
  closeRequestAndValidate(nettyRequest, channel);
  writeChannel.close();
  assertEquals("Reference count of http content has changed", 1, httpContent.refCnt());
  callback.awaitCallback();
  if (callback.exception != null) {
    throw callback.exception;
  }
  long futureBytesRead = future.get();
  assertEquals("Total bytes read does not match (callback)", 0, callback.bytesRead);
  assertEquals("Total bytes read does not match (future)", 0, futureBytesRead);
}
 

@Test
public void addContentChunk_adds_last_chunk_trailing_headers() {
    // given
    RequestInfoImpl<?> requestInfo = RequestInfoImpl.dummyInstanceForUnknownRequests();
    requestInfo.isCompleteRequestWithAllChunks = false;
    LastHttpContent lastChunk = new DefaultLastHttpContent(Unpooled.copiedBuffer(UUID.randomUUID().toString(), CharsetUtil.UTF_8));
    String headerKey = UUID.randomUUID().toString();
    List<String> headerVal = Arrays.asList(UUID.randomUUID().toString(), UUID.randomUUID().toString());
    lastChunk.trailingHeaders().add(headerKey, headerVal);

    // when
    requestInfo.addContentChunk(lastChunk);

    // then
    assertThat(requestInfo.trailingHeaders.names().size(), is(1));
    assertThat(requestInfo.trailingHeaders.getAll(headerKey), is(headerVal));
}
 

@Test
public void addContentChunk_adds_chunk_content_length_to_rawContentLengthInBytes() throws IOException {
    // given
    RequestInfoImpl<?> requestInfo = RequestInfoImpl.dummyInstanceForUnknownRequests();
    requestInfo.isCompleteRequestWithAllChunks = false;
    String chunk1String = UUID.randomUUID().toString();
    String lastChunkString = UUID.randomUUID().toString();
    byte[] chunk1Bytes = chunk1String.getBytes();
    byte[] lastChunkBytes = lastChunkString.getBytes();
    HttpContent chunk1 = new DefaultHttpContent(Unpooled.copiedBuffer(chunk1Bytes));
    HttpContent lastChunk = new DefaultLastHttpContent(Unpooled.copiedBuffer(lastChunkBytes));

    // when
    requestInfo.addContentChunk(chunk1);
    requestInfo.addContentChunk(lastChunk);

    // then
    assertThat(requestInfo.contentChunks.size(), is(2));
    assertThat(requestInfo.isCompleteRequestWithAllChunks(), is(true));
    assertThat(requestInfo.getRawContentLengthInBytes(), is(chunk1Bytes.length + lastChunkBytes.length));
}
 

@Test
public void shouldDecodeListDesignDocumentsResponse() throws Exception {
    HttpResponse responseHeader = new DefaultHttpResponse(HttpVersion.HTTP_1_1, new HttpResponseStatus(200, "OK"));
    HttpContent responseChunk1 = new DefaultHttpContent(Unpooled.copiedBuffer("foo", CharsetUtil.UTF_8));
    HttpContent responseChunk2 = new DefaultLastHttpContent(Unpooled.copiedBuffer("bar", CharsetUtil.UTF_8));

    GetDesignDocumentsRequest requestMock = mock(GetDesignDocumentsRequest.class);
    requestQueue.add(requestMock);
    channel.writeInbound(responseHeader, responseChunk1, responseChunk2);

    assertEquals(1, eventSink.responseEvents().size());
    GetDesignDocumentsResponse event = (GetDesignDocumentsResponse) eventSink.responseEvents().get(0).getMessage();

    assertEquals(ResponseStatus.SUCCESS, event.status());
    assertEquals("foobar", event.content());
    assertTrue(requestQueue.isEmpty());
}
 

@Test
public void shouldDecodeFlushNotEnabledResponse() throws Exception {
    String content = "{\"_\":\"Flush is disabled for the bucket\"}";
    HttpResponse responseHeader = new DefaultHttpResponse(HttpVersion.HTTP_1_1,
        new HttpResponseStatus(400, "Bad Request"));
    HttpContent responseChunk = new DefaultLastHttpContent(Unpooled.copiedBuffer(content, CharsetUtil.UTF_8));

    FlushRequest requestMock = mock(FlushRequest.class);
    requestQueue.add(requestMock);
    channel.writeInbound(responseHeader, responseChunk);

    assertEquals(1, eventSink.responseEvents().size());
    FlushResponse event = (FlushResponse) eventSink.responseEvents().get(0).getMessage();

    assertEquals(ResponseStatus.INVALID_ARGUMENTS, event.status());
    assertEquals("{\"_\":\"Flush is disabled for the bucket\"}", event.content());
    assertTrue(requestQueue.isEmpty());
}
 

@Test
public void addDecoderReplaysLastHttp() {
	ByteBuf buf = Unpooled.copiedBuffer("{\"foo\":1}", CharsetUtil.UTF_8);
	EmbeddedChannel channel = new EmbeddedChannel();
	new HttpClientOperations(() -> channel, ConnectionObserver.emptyListener(),
			ClientCookieEncoder.STRICT, ClientCookieDecoder.STRICT)
			.addHandler(new JsonObjectDecoder());
	channel.writeInbound(new DefaultLastHttpContent(buf));

	MatcherAssert.assertThat(channel.pipeline().names().iterator().next(), is("JsonObjectDecoder$extractor"));

	Object content = channel.readInbound();
	MatcherAssert.assertThat(content, instanceOf(ByteBuf.class));
	((ByteBuf) content).release();

	content = channel.readInbound();
	MatcherAssert.assertThat(content, instanceOf(LastHttpContent.class));
	((LastHttpContent) content).release();

	MatcherAssert.assertThat(channel.readInbound(), nullValue());
}
 

@Test
public void addNamedDecoderReplaysLastHttp() {
	ByteBuf buf = Unpooled.copiedBuffer("{\"foo\":1}", CharsetUtil.UTF_8);
	EmbeddedChannel channel = new EmbeddedChannel();
	new HttpClientOperations(() -> channel, ConnectionObserver.emptyListener(),
			ClientCookieEncoder.STRICT, ClientCookieDecoder.STRICT)
			.addHandler("json", new JsonObjectDecoder());
	channel.writeInbound(new DefaultLastHttpContent(buf));

	MatcherAssert.assertThat(channel.pipeline().names().iterator().next(), is("json$extractor"));

	Object content = channel.readInbound();
	MatcherAssert.assertThat(content, instanceOf(ByteBuf.class));
	((ByteBuf) content).release();

	content = channel.readInbound();
	MatcherAssert.assertThat(content, instanceOf(LastHttpContent.class));
	((LastHttpContent) content).release();

	MatcherAssert.assertThat(channel.readInbound(), nullValue());
}
 

@Test
public void addEncoderReplaysLastHttp() {
	ByteBuf buf = Unpooled.copiedBuffer("{\"foo\":1}", CharsetUtil.UTF_8);
	EmbeddedChannel channel = new EmbeddedChannel();
	new HttpClientOperations(() -> channel, ConnectionObserver.emptyListener(),
			ClientCookieEncoder.STRICT, ClientCookieDecoder.STRICT)
			.addHandler(new JsonObjectDecoder());
	channel.writeInbound(new DefaultLastHttpContent(buf));

	MatcherAssert.assertThat(channel.pipeline().names().iterator().next(), is("JsonObjectDecoder$extractor"));

	Object content = channel.readInbound();
	MatcherAssert.assertThat(content, instanceOf(ByteBuf.class));
	((ByteBuf) content).release();

	content = channel.readInbound();
	MatcherAssert.assertThat(content, instanceOf(LastHttpContent.class));
	((LastHttpContent) content).release();

	MatcherAssert.assertThat(channel.readInbound(), nullValue());
}
 

@Test
public void addNamedEncoderReplaysLastHttp() {
	ByteBuf buf = Unpooled.copiedBuffer("{\"foo\":1}", CharsetUtil.UTF_8);
	EmbeddedChannel channel = new EmbeddedChannel();
	new HttpClientOperations(() -> channel, ConnectionObserver.emptyListener(),
			ClientCookieEncoder.STRICT, ClientCookieDecoder.STRICT)
			.addHandler("json", new JsonObjectDecoder());
	channel.writeInbound(new DefaultLastHttpContent(buf));

	MatcherAssert.assertThat(channel.pipeline().names().iterator().next(), is("json$extractor"));

	Object content = channel.readInbound();
	MatcherAssert.assertThat(content, instanceOf(ByteBuf.class));
	((ByteBuf) content).release();

	content = channel.readInbound();
	MatcherAssert.assertThat(content, instanceOf(LastHttpContent.class));
	((LastHttpContent) content).release();

	MatcherAssert.assertThat(channel.readInbound(), nullValue());
}
 

@Test
public void testBuildContent()
    throws Exception {
  HttpRequest nettyRequest = new DefaultFullHttpRequest(HttpVersion.HTTP_1_0, HttpMethod.GET, "www.google.com");
  RecordedHttpRequestBuilder recordedHttpRequestBuilder = new RecordedHttpRequestBuilder(nettyRequest);

  String charset = "UTF-8";
  String str1 = "first content";
  HttpContent httpContent1 = new DefaultHttpContent(Unpooled.copiedBuffer(str1.getBytes(charset)));
  recordedHttpRequestBuilder.appendHttpContent(httpContent1);
  String str2 = "second content";
  HttpContent httpContent2 = new DefaultHttpContent(Unpooled.copiedBuffer(str2.getBytes(charset)));
  recordedHttpRequestBuilder.appendHttpContent(httpContent2);

  String lastStr = "Last chunk";
  HttpContent lastContent = new DefaultLastHttpContent(Unpooled.copiedBuffer(lastStr.getBytes(charset)));
  recordedHttpRequestBuilder.appendHttpContent(lastContent);

  RecordedHttpRequest recordedHttpRequest = recordedHttpRequestBuilder.build();
  Assert
      .assertEquals((str1 + str2 + lastStr).getBytes(charset), recordedHttpRequest.getHttpBody().getContent(charset));
}
 

@Test
public void testBuild()
    throws IOException {
  HttpResponse httpResponse = new DefaultFullHttpResponse(HttpVersion.HTTP_1_0, HttpResponseStatus.GATEWAY_TIMEOUT);
  RecordedHttpResponseBuilder recordedHttpResponseBuilder = new RecordedHttpResponseBuilder(httpResponse);

  String charset = "UTF-8";
  String str1 = "Hello world";
  HttpContent httpContent1 = new DefaultHttpContent(Unpooled.copiedBuffer(str1.getBytes(charset)));
  recordedHttpResponseBuilder.appendHttpContent(httpContent1);
  String str2 = "second content";
  HttpContent httpContent2 = new DefaultHttpContent(Unpooled.copiedBuffer(str2.getBytes(charset)));
  recordedHttpResponseBuilder.appendHttpContent(httpContent2);

  String lastStr = "Last chunk";
  HttpContent lastContent = new DefaultLastHttpContent(Unpooled.copiedBuffer(lastStr.getBytes(charset)));
  recordedHttpResponseBuilder.appendHttpContent(lastContent);
  RecordedHttpResponse recordedHttpResponse = recordedHttpResponseBuilder.build();
  Assert.assertEquals(recordedHttpResponse.getStatus(), HttpResponseStatus.GATEWAY_TIMEOUT.code());
  Assert.assertEquals((str1 + str2 + lastStr).getBytes(charset),
      recordedHttpResponse.getHttpBody().getContent(charset));
}
 

@Test
public void shouldDecodeNotFoundBucketConfigResponse() throws Exception {
    HttpResponse responseHeader = new DefaultHttpResponse(HttpVersion.HTTP_1_1,
        new HttpResponseStatus(404, "Object Not Found"));
    HttpContent responseChunk = new DefaultLastHttpContent(Unpooled.copiedBuffer("Not found.", CharsetUtil.UTF_8));

    BucketConfigRequest requestMock = mock(BucketConfigRequest.class);
    requestQueue.add(requestMock);
    channel.writeInbound(responseHeader, responseChunk);

    assertEquals(1, eventSink.responseEvents().size());
    BucketConfigResponse event = (BucketConfigResponse) eventSink.responseEvents().get(0).getMessage();

    assertEquals(ResponseStatus.NOT_EXISTS, event.status());
    assertEquals("Not found.", event.config());
    assertTrue(requestQueue.isEmpty());
}
 

@Test
public void shouldDecodeSuccessBucketConfigResponse() throws Exception {
    HttpResponse responseHeader = new DefaultHttpResponse(HttpVersion.HTTP_1_1, new HttpResponseStatus(200, "OK"));
    HttpContent responseChunk1 = new DefaultHttpContent(Unpooled.copiedBuffer("foo", CHARSET));
    HttpContent responseChunk2 = new DefaultLastHttpContent(Unpooled.copiedBuffer("bar", CHARSET));

    BucketConfigRequest requestMock = mock(BucketConfigRequest.class);
    requestQueue.add(requestMock);
    channel.writeInbound(responseHeader, responseChunk1, responseChunk2);
    channel.readInbound();

    assertEquals(1, eventSink.responseEvents().size());
    BucketConfigResponse event = (BucketConfigResponse) eventSink.responseEvents().get(0).getMessage();

    assertEquals(ResponseStatus.SUCCESS, event.status());
    assertEquals("foobar", event.config());
    assertTrue(requestQueue.isEmpty());
}
 

/**
 * Write the entity to the carbon message.
 */
@Override
public void writeData(HttpCarbonMessage carbonMessage, Object entity, String mediaType, int chunkSize,
                      HttpCarbonMessage responder) {
    mediaType = (mediaType != null) ? mediaType : MediaType.WILDCARD;
    ByteBuffer byteBuffer = BeanConverter.getConverter(mediaType).convertToMedia(entity);
    carbonMessage.addHttpContent(new DefaultLastHttpContent(Unpooled.wrappedBuffer(byteBuffer)));
    if (chunkSize == Response.NO_CHUNK) {
        carbonMessage.setHeader(HttpHeaderNames.CONTENT_LENGTH.toString(), String.valueOf(byteBuffer.remaining()));
    } else {
        carbonMessage.setHeader(HttpHeaderNames.TRANSFER_ENCODING.toString(), CHUNKED);
    }
    carbonMessage.setHeader(HttpHeaderNames.CONTENT_TYPE.toString(), mediaType);
    try {
        responder.respond(carbonMessage);
    } catch (ServerConnectorException e) {
        throw new RuntimeException("Error while sending the response.", e);
    }
}
 

@Test
public void shouldDecodeProfileInfo() throws Exception {
    String response = Resources.read("with_timings_profile.json", this.getClass());
    HttpResponse responseHeader = new DefaultHttpResponse(HttpVersion.HTTP_1_1, new HttpResponseStatus(200, "OK"));
    HttpContent responseChunk = new DefaultLastHttpContent(Unpooled.copiedBuffer(response, CharsetUtil.UTF_8));

    GenericQueryRequest requestMock = mock(GenericQueryRequest.class);
    queue.add(requestMock);
    channel.writeInbound(responseHeader, responseChunk);
    latch.await(1, TimeUnit.SECONDS);
    assertEquals(1, firedEvents.size());
    GenericQueryResponse inbound = (GenericQueryResponse) firedEvents.get(0);

    final AtomicInteger invokeCounter1 = new AtomicInteger();
    latch = new CountDownLatch(1);
    inbound.profileInfo().subscribe(
            new Action1<ByteBuf>() {
                @Override
                public void call(ByteBuf buf) {
                    invokeCounter1.incrementAndGet();
                    buf.release();
                }
            },
            new Action1<Throwable>() {
                @Override
                public void call(Throwable err) {
                    latch.countDown();
                }
            },
            new Action0() {
                @Override
                public void call() {
                    latch.countDown();
                }
            }
    );
    latch.await(1, TimeUnit.SECONDS);
    assertEquals(1, invokeCounter1.get());
}
 

@Test
public void shouldDecodeEmptyViewQueryResponse() throws Exception {
    String response = Resources.read("query_empty.json", this.getClass());
    HttpResponse responseHeader = new DefaultHttpResponse(HttpVersion.HTTP_1_1, new HttpResponseStatus(200, "OK"));
    HttpContent responseChunk = new DefaultLastHttpContent(Unpooled.copiedBuffer(response, CharsetUtil.UTF_8));

    ViewQueryRequest requestMock = mock(ViewQueryRequest.class);
    queue.add(requestMock);
    channel.writeInbound(responseHeader, responseChunk);
    latch.await(1, TimeUnit.SECONDS);
    assertEquals(1, firedEvents.size());
    ViewQueryResponse inbound = (ViewQueryResponse) firedEvents.get(0);

    assertTrue(inbound.status().isSuccess());
    assertTrue(inbound.rows().toList().toBlocking().single().isEmpty());

    final AtomicInteger called = new AtomicInteger();
    inbound.info().toBlocking().forEach(new Action1<ByteBuf>() {
        @Override
        public void call(ByteBuf byteBuf) {
            called.incrementAndGet();
            assertEquals("{\"total_rows\":7303}", byteBuf.toString(CharsetUtil.UTF_8));
            ReferenceCountUtil.releaseLater(byteBuf);
        }
    });
    assertEquals(1, called.get());
}