/**
* Overrides parsing the URL to validate constraints on well formed archive syntax.
*
* @see URLStreamHandler#parseURL(java.net.URL, java.lang.String, int, int)
*/
@Override
protected void parseURL(URL url, String specification, int start, int limit) {
super.parseURL(url, specification, start, limit);
// There needs to be another URL protocol right after the archive
// protocol, and not a "/".
//
if (start > limit || specification.charAt(start) == '/') {
throw new IllegalArgumentException(
"archive protocol must be immediately followed by another URL protocol " + specification);
}
// There must be at least one archive path.
//
int archiveSeparator = specification.indexOf("!/", start);
if (archiveSeparator < 0) {
throw new IllegalArgumentException(
"missing archive separators " + specification.substring(start, limit));
}
// Parse to count the archive paths that must will be delegated to the
// nested URL based on the number of schemes at the start.
//
for (int i = start, end = specification.indexOf('/', start) - 1;
(i = specification.indexOf(':', i)) < end;
++i) {
// There should be at least one archive separator per scheme.
//
archiveSeparator = specification.indexOf("!/", archiveSeparator + 2);
if (archiveSeparator < 0) {
throw new IllegalArgumentException("too few archive separators " + specification);
}
}
}
/**
* Parse the <code>string</code>str into <code>URL</code> u which already have the context
* properties. The string generally have the following format: <code>
* <center>/c:/windows/win.ini</center></code>.
*
* @param u The URL object that's parsed into
* @param str The string equivalent of the specification URL
* @param start The index in the spec string from which to begin parsing
* @param end The index to stop parsing
* @see java.net.URLStreamHandler#toExternalForm(URL)
* @see java.net.URL
*/
@Override
protected void parseURL(URL u, String str, int start, int end) {
if (end < start) {
return;
}
String parseString = ""; // $NON-NLS-1$
if (start < end) {
parseString = str.substring(start, end).replace('\\', '/');
}
super.parseURL(u, parseString, 0, parseString.length());
}
// Overrides URLStreamHandler
protected void parseURL(URL u, String spec, int start, int limit) {
super.parseURL(u, spec.replace(File.separatorChar, '/'), start, limit);
}
@Override
protected void parseURL(URL u, String spec, int start, int end) {
uri = spec.substring(start, end);
super.parseURL(u, spec, start, end);
}