Method create

api/src/main/java/io/grpc/Uri.java:214–281

Creates a URI from a string assumed to be valid. Useful for defining URI constants in code. Not for user input. @throws IllegalArgumentException if 's' is not a valid RFC 3986 URI.

(String s)

   * @throws IllegalArgumentException if 's' is not a valid RFC 3986 URI.
   */
  public static Uri create(String s) {
    Builder builder = new Builder();
    int i = 0;
    final int n = s.length();

    // 3.1. Scheme: Look for a ':' before '/', '?', or '#'.
    int schemeColon = -1;
    for (; i < n; ++i) {
      char c = s.charAt(i);
      if (c == ':') {
        schemeColon = i;
        break;
      } else if (c == '/' || c == '?' || c == '#') {
        break;
      }
    }
    if (schemeColon < 0) {
      throw new IllegalArgumentException("Missing required scheme.");
    }
    builder.setRawScheme(s.substring(0, schemeColon));

    // 3.2. Authority. Look for '//' then keep scanning until '/', '?', or '#'.
    i = schemeColon + 1;
    if (i + 1 < n && s.charAt(i) == '/' && s.charAt(i + 1) == '/') {
      // "//" just means we have an authority. Skip over it.
      i += 2;

      int authorityStart = i;
      for (; i < n; ++i) {
        char c = s.charAt(i);
        if (c == '/' || c == '?' || c == '#') {
          break;
        }
      }
      builder.setRawAuthority(s.substring(authorityStart, i));
    }

    // 3.3. Path: Whatever is left before '?' or '#'.
    int pathStart = i;
    for (; i < n; ++i) {
      char c = s.charAt(i);
      if (c == '?' || c == '#') {
        break;
      }
    }
    builder.setRawPath(s.substring(pathStart, i));

    // 3.4. Query, if we stopped at '?'.
    if (i < n && s.charAt(i) == '?') {
      i++; // Skip '?'
      int queryStart = i;
      for (; i < n; ++i) {
        char c = s.charAt(i);
        if (c == '#') {
          break;
        }
      }
      builder.setRawQuery(s.substring(queryStart, i));