if (availableChannels.size() == 1) {
            return availableChannels.iterator().next();
        }

        switch (strategy) {
        case ROUND_ROBIN:
            return selectRoundRobin(availableChannels);

        case LEAST_LOADED:
            return selectLeastLoaded(availableChannels);

        case WEIGHTED_RANDOM:
            return selectWeightedRandom(availableChannels);

        if (!filePath.startsWith("s3:")) {
            filePath = "s3://" + filePath;
        }

        return filePath;
    }

    /**
     * Returns the character set used for content encoding.
     * @return the charset
     */
    public String getCharset() {
        return charset;
    }

    /**
     * Sets the character set used for content encoding.

		if err != nil {
			return nil, err
		}

		return format, nil
	}

	// Return error when quorum unformatted disks - indicating we are
	// waiting for first server to be online.
	unformattedDisks := quorumUnformattedDisks(sErrs)
	if unformattedDisks && !firstDisk {
		return nil, errNotFirstDisk
	}

	// Return error when quorum unformatted disks but waiting for rest

    }

    @Override
    protected String getActionRole() {
        return ROLE;
    }

    /**
     * Show the index page.
     * @return The HTML response.
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index() {
        saveToken();
        return asListHtml();
    }

    /**
     * Upload a file.
     * @param form The upload form.

    public byte[] encrypto(final byte[] data, final Key key) {
        return encrypt(data, key);
    }

    /**
     * Encrypts the given text.
     *
     * @param text
     *            the text to encrypt
     * @return the encrypted text
     */
    public String encryptText(final String text) {
        try {
            return Base64Util.encode(encrypt(text.getBytes(charsetName)));

        case CrudMode.CREATE:
            return OptionalEntity.of(new AccessToken()).map(entity -> {
                entity.setCreatedBy(username);
                entity.setCreatedTime(currentTime);
                return entity;
            });
        case CrudMode.EDIT:
            if (form instanceof EditForm) {

        serveConnection(nextConnectionIndex++, socket, peek)
      }
    }
  }

  public override fun close() {
    if (closed) return
    closed = true

    if (!started) return // Nothing to shut down.
    val serverSocket = this.serverSocket ?: return // If this is null, start() must have failed.

    // Cause acceptConnections() to break out.
    serverSocket.closeQuietly()

    // Await shutdown.

         * @return this builder for method chaining
         */
        public SearchConditionBuilder offset(final int offset) {
            this.offset = offset;
            return this;
        }

        /**
         * Sets the maximum number of results to return.
         *
         * @param size the maximum number of results
         * @return this builder for method chaining
         */

    if (negative) {
      return accum;
    } else if (accum == Long.MIN_VALUE) {
      return null;
    } else {
      return -accum;
    }
  }

  private static final class LongConverter extends Converter<String, Long> implements Serializable {
    static final Converter<String, Long> INSTANCE = new LongConverter();

    @Override
    protected Long doForward(String value) {
      return Long.decode(value);
    }

		}
	}

	// If nilCount >= p.writeQuorum, we return nil. This is because HealFile() uses
	// CreateFile with p.writeQuorum=1 to accommodate healing of single disk.
	// i.e if we do no return here in such a case, reduceWriteQuorumErrs() would
	// return a quorum error to HealFile().
	nilCount := countErrs(p.errs, nil)
	if nilCount >= p.writeQuorum {
		return nil
	}