private void initialize()

in axis-rt-core/src/main/java/org/apache/axis/types/URI.java [488:589]
65 lines of code
30 McCabe index (conditional complexity)

  private void initialize(URI p_base, String p_uriSpec, boolean allowNonAbsoluteURI)
      throws MalformedURIException {
      
      String uriSpec = p_uriSpec;
      int uriSpecLen = (uriSpec != null) ? uriSpec.length() : 0;
      
      if (p_base == null && uriSpecLen == 0) {
          if (allowNonAbsoluteURI) {
              m_path = "";
              return;
          }
          throw new MalformedURIException("Cannot initialize URI with empty parameters.");
      }
      
      // just make a copy of the base if spec is empty
      if (uriSpecLen == 0) {
          initialize(p_base);
          return;
      }
      
      int index = 0;
      
      // Check for scheme, which must be before '/', '?' or '#'.
      int colonIdx = uriSpec.indexOf(':');
      if (colonIdx != -1) {
          final int searchFrom = colonIdx - 1;
          // search backwards starting from character before ':'.
          int slashIdx = uriSpec.lastIndexOf('/', searchFrom);
          int queryIdx = uriSpec.lastIndexOf('?', searchFrom);
          int fragmentIdx = uriSpec.lastIndexOf('#', searchFrom);
          
          if (colonIdx == 0 || slashIdx != -1 || 
              queryIdx != -1 || fragmentIdx != -1) {
              // A standalone base is a valid URI according to spec
              if (colonIdx == 0 || (p_base == null && fragmentIdx != 0 && !allowNonAbsoluteURI)) {
                  throw new MalformedURIException("No scheme found in URI.");
              }
          }
          else {
              initializeScheme(uriSpec);
              index = m_scheme.length()+1;
              
              // Neither 'scheme:' or 'scheme:#fragment' are valid URIs.
              if (colonIdx == uriSpecLen - 1 || uriSpec.charAt(colonIdx+1) == '#') {
                  throw new MalformedURIException("Scheme specific part cannot be empty.");   
              }
          }
      }
      else if (p_base == null && uriSpec.indexOf('#') != 0 && !allowNonAbsoluteURI) {
          throw new MalformedURIException("No scheme found in URI.");    
      }
      
      // Two slashes means we may have authority, but definitely means we're either
      // matching net_path or abs_path. These two productions are ambiguous in that
      // every net_path (except those containing an IPv6Reference) is an abs_path. 
      // RFC 2396 resolves this ambiguity by applying a greedy left most matching rule. 
      // Try matching net_path first, and if that fails we don't have authority so 
      // then attempt to match abs_path.
      //
      // net_path = "//" authority [ abs_path ]
      // abs_path = "/"  path_segments
      if (((index+1) < uriSpecLen) &&
          (uriSpec.charAt(index) == '/' && uriSpec.charAt(index+1) == '/')) {
          index += 2;
          int startPos = index;
          
          // Authority will be everything up to path, query or fragment
          char testChar = '\0';
          while (index < uriSpecLen) {
              testChar = uriSpec.charAt(index);
              if (testChar == '/' || testChar == '?' || testChar == '#') {
                  break;
              }
              index++;
          }
          
          // Attempt to parse authority. If the section is an empty string
          // this is a valid server based authority, so set the host to this
          // value.
          if (index > startPos) {
              // If we didn't find authority we need to back up. Attempt to
              // match against abs_path next.
              if (!initializeAuthority(uriSpec.substring(startPos, index))) {
                  index = startPos - 2;
              }
          }
          else {
              m_host = "";
          }
      }
      
      initializePath(uriSpec, index);
      
      // Resolve relative URI to base URI - see RFC 2396 Section 5.2
      // In some cases, it might make more sense to throw an exception
      // (when scheme is specified is the string spec and the base URI
      // is also specified, for example), but we're just following the
      // RFC specifications
      if (p_base != null) {
          absolutize(p_base);
      }
  }