public LowLevelHttpResponse execute()

in google-http-client/src/main/java/com/google/api/client/http/javanet/NetHttpRequest.java [52:102]
46 lines of code
10 McCabe index (conditional complexity)

  public LowLevelHttpResponse execute() throws IOException {
    HttpURLConnection connection = this.connection;
    // write content
    if (getStreamingContent() != null) {
      String contentType = getContentType();
      if (contentType != null) {
        addHeader("Content-Type", contentType);
      }
      String contentEncoding = getContentEncoding();
      if (contentEncoding != null) {
        addHeader("Content-Encoding", contentEncoding);
      }
      long contentLength = getContentLength();
      if (contentLength >= 0) {
        addHeader("Content-Length", Long.toString(contentLength));
      }
      String requestMethod = connection.getRequestMethod();
      if ("POST".equals(requestMethod) || "PUT".equals(requestMethod)) {
        connection.setDoOutput(true);
        // see http://developer.android.com/reference/java/net/HttpURLConnection.html
        if (contentLength >= 0 && contentLength <= Integer.MAX_VALUE) {
          connection.setFixedLengthStreamingMode((int) contentLength);
        } else {
          connection.setChunkedStreamingMode(0);
        }
        OutputStream out = connection.getOutputStream();
        try {
          getStreamingContent().writeTo(out);
        } finally {
          out.close();
        }
      } else {
        // cannot call setDoOutput(true) because it would change a GET method to POST
        // for HEAD, OPTIONS, DELETE, or TRACE it would throw an exceptions
        Preconditions.checkArgument(
            contentLength == 0, "%s with non-zero content length is not supported", requestMethod);
      }
    }
    // connect
    boolean successfulConnection = false;
    try {
      connection.connect();
      NetHttpResponse response = new NetHttpResponse(connection);
      successfulConnection = true;
      return response;
    } finally {
      if (!successfulConnection) {
        connection.disconnect();
      }
    }
  }