/** Resolve a child path against a parent path. */
public Path(Path parent, Path child) {
// Add a slash to parent's path so resolution is compatible with URI's
URI parentUri = parent.uri;
String parentPath = parentUri.getPath();
if (!(parentPath.equals("/") || parentPath.equals(""))) {
try {
parentUri =
new URI(
parentUri.getScheme(),
parentUri.getAuthority(),
parentUri.getPath() + "/",
null,
parentUri.getFragment());
} catch (URISyntaxException e) {
throw new IllegalArgumentException(e);
}
}
URI resolved = parentUri.resolve(child.uri);
initialize(
resolved.getScheme(), resolved.getAuthority(),
resolved.getPath(), resolved.getFragment());
}
/**
* Construct a path from a String. Path strings are URIs, but with unescaped elements and some
* additional normalization.
*/
public Path(String pathString) {
checkPathArg(pathString);
// We can't use 'new URI(String)' directly, since it assumes things are
// escaped, which we don't require of Paths.
// add a slash in front of paths with Windows drive letters
if (hasWindowsDrive(pathString, false)) pathString = "/" + pathString;
// parse uri components
String scheme = null;
String authority = null;
int start = 0;
// parse uri scheme, if any
int colon = pathString.indexOf(':');
int slash = pathString.indexOf('/');
if ((colon != -1) && ((slash == -1) || (colon < slash))) { // has a scheme
scheme = pathString.substring(0, colon);
start = colon + 1;
}
// parse uri authority, if any
if (pathString.startsWith("//", start) && (pathString.length() - start > 2)) { // has authority
int nextSlash = pathString.indexOf('/', start + 2);
int authEnd = nextSlash > 0 ? nextSlash : pathString.length();
authority = pathString.substring(start + 2, authEnd);
start = authEnd;
}
// uri path is the rest of the string -- query & fragment not supported
String path = pathString.substring(start, pathString.length());
initialize(scheme, authority, path, null);
}
/** Construct a Path from components. */
public Path(String scheme, String authority, String path) {
checkPathArg(path);
initialize(scheme, authority, path, null);
}