public static ResourcePath parse(String pathString) { String rootElement; int lastIndex; if (pathString.startsWith(WINDOWS_NETWORK_ROOT)) { rootElement = WINDOWS_NETWORK_ROOT; lastIndex = 2; } else if (pathString.startsWith("/")) { rootElement = ""; lastIndex = 1; } else { char first = pathString.charAt(0); if (pathString.length() > 1 && pathString.charAt(1) == ':' && Character.isLetter(first)) { rootElement = Character.toUpperCase(first) + ":"; lastIndex = 2; if (pathString.length() > 2 && (pathString.charAt(2) == '/' || pathString.charAt(2) == '\\')) { lastIndex = 3; } } else { throw new IllegalArgumentException( "The path string [" + pathString + "] is not an absolute path starting at a drive root"); } } DynamicArray<String> results = tokenizePathFragment(pathString, lastIndex); results = normalizePath(results); return construct(rootElement, results, results.size() - 1); }
private static DynamicArray<String> normalizePath(DynamicArray<String> pathElements) { DynamicArray<String> results = new DynamicArray<String>(pathElements.size()); for (int i = 0; i < pathElements.size; i++) { String s = (String) pathElements.data[i]; if (s.equals(".") || s.equals("/") || s.equals("\\") || s.equals("")) { // no-op } else if (s.equals("..")) { // TODO - Throw if no more elements results.remove(results.size() - 1); } else { results.add(s); } } return results; }
private static String[] split(String fqn) { String theRest = fqn; DynamicArray<String> parts = new DynamicArray<String>(); while (theRest != null) { int iParam = theRest.indexOf('<'); int iDot = theRest.indexOf('.'); int iArray = theRest.indexOf('['); String part; if (iParam == 0) { if (iArray > 0) { part = theRest.substring(0, iArray); theRest = iArray < theRest.length() ? theRest.substring(iArray) : null; } else { if (theRest.charAt(theRest.length() - 1) != '>') { throw new RuntimeException("\"" + theRest + "\" does not end with '>'"); } part = theRest; theRest = null; } } else if (iArray == 0) { part = theRest.substring(0, 2); theRest = part.length() == theRest.length() ? null : theRest.substring(2); } else if (iParam > 0) { if (iDot > 0 && iDot < iParam) { part = theRest.substring(0, iDot); theRest = iDot + 1 < theRest.length() ? theRest.substring(iDot + 1) : null; } else { part = theRest.substring(0, iParam); theRest = iParam < theRest.length() ? theRest.substring(iParam) : null; } } else if (iDot > 0) { part = theRest.substring(0, iDot); theRest = iDot + 1 < theRest.length() ? theRest.substring(iDot + 1) : null; } else { part = theRest; theRest = null; } parts.add(StringCache.get(part)); } return parts.toArray(new String[parts.size()]); }