* @param acceptedRoles array of role names that can access the API
     */
    public void setAcceptedRoles(final String[] acceptedRoles) {
        this.acceptedRoles = acceptedRoles;
    }

    /**
     * Gets the server path with access token for API requests.
     *
     * @return the complete server path including the access token
     * @throws FessSystemException if no access token is available
     */

                }
                start = (pageNumber - 1) * form.getPageSize();
            }
        }
        form.start = start;

        return doSearch(form);
    }

    /**
     * Gets the display query.
     * @param form The search form.
     * @param labelTypeItems The list of label type items.
     * @return The display query.
     */

 * Given a request and cached response, this figures out whether to use the network, the cache, or
 * both.
 *
 * Selecting a cache strategy may add conditions to the request (like the "If-Modified-Since" header
 * for conditional GETs) or warnings to the cached response (if the cached data is potentially
 * stale).
 */
class CacheStrategy internal constructor(
  /** The request to send on the network, or null if this call doesn't use the network. */

       * Returns an input stream containing one or more certificate PEM files. This implementation just
       * embeds the PEM files in Java strings; most applications will instead read this from a resource
       * file that gets bundled with the application.
       */
      private fun trustedCertificatesInputStream(): InputStream {
        ... // Full source omitted. See sample.
      }

 *    125 : Mapped inline to the sequence: [b2a, b3].
 *    126 : Mapped inline to the sequence: [b2, b3a].
 *    127 : Mapped inline to the sequence: [b2a, b3a].
 *
 * The range goes until the beginning of the next range.
 *
 * When b2 and b3 are unused, their values are set to 0x2d ('-').
 *
 * Section Index (1,240 bytes)
 * ===========================
 *

        // First release drops usage to zero and releases transport
        session.release();
        verify(transport, times(1)).release();
        assertFalse(session.isInUse());

        // Next release goes below zero and throws
        RuntimeException ex = assertThrows(RuntimeCIFSException.class, session::release);
        assertTrue(ex.getMessage().contains("below zero"));

		return 0
	}
	return limit
}

func availableMemory() (available uint64) {
	available = 2048 * blockSizeV2 * 2 // Default to 4 GiB when we can't find the limits.

	if runtime.GOOS == "linux" {
		// Honor cgroup limits if set.
		limit := cgroupMemLimit()
		if limit > 0 {
			// A valid value is found, return its 90%
			available = (limit * 9) / 10
			return available
		}

	ifs, err := net.Interfaces()
	logger.FatalIf(err, "Unable to get IP addresses of this host")

	for _, interf := range ifs {
		addrs, err := interf.Addrs()
		if err != nil {
			continue
		}
		if runtime.GOOS == "windows" && interf.Flags&net.FlagUp == 0 {
			continue
		}

		for _, addr := range addrs {
			var ip net.IP
			switch v := addr.(type) {
			case *net.IPNet:
				ip = v.IP
			case *net.IPAddr:

    could use new flow control capacity before acknowledging it, causing strict HTTP/2 servers to
    fail the call.

 *  Fix: Recover gracefully when a coalesced connection immediately goes unhealthy.

## Version 3.14.2

_2019-05-19_

 *  Fix: Lock in a route when recovering from an HTTP/2 connection error. We had a bug where two

这里，请求 `/unicorns/yolo` 时，路径操作会触发 `UnicornException`。

但该异常将会被 `unicorn_exception_handler` 处理。

你会收到清晰的错误信息，HTTP 状态码为 `418`，JSON 内容如下：

```JSON
{"message": "Oops! yolo did something. There goes a rainbow..."}
```

/// note | 技术细节

也可以使用 `from starlette.requests import Request` 和 `from starlette.responses import JSONResponse`。