233 throw new IllegalArgumentException("Invalid port number :" +
234 port);
235 start = i;
236 // If the authority is defined then the path is defined by the
237 // spec only; See RFC 2396 Section 5.2.4.
238 if (authority != null && authority.length() > 0)
239 path = "";
240 }
241
242 if (host == null) {
243 host = "";
244 }
245
246 // Parse the file path if any
247 if (start < limit) {
248 if (spec.charAt(start) == '/') {
249 path = spec.substring(start, limit);
250 } else if (path != null && path.length() > 0) {
251 isRelPath = true;
252 int ind = path.lastIndexOf('/');
253 String seperator = "";
254 if (ind == -1 && authority != null)
255 seperator = "/";
256 path = path.substring(0, ind + 1) + seperator +
257 spec.substring(start, limit);
258
259 } else {
260 String seperator = (authority != null) ? "/" : "";
261 path = seperator + spec.substring(start, limit);
262 }
263 } else if (queryOnly && path != null) {
264 int ind = path.lastIndexOf('/');
265 if (ind < 0)
266 ind = 0;
267 path = path.substring(0, ind) + "/";
268 }
269 if (path == null)
270 path = "";
271
272 if (isRelPath) {
273 // Remove embedded /./
274 while ((i = path.indexOf("/./")) >= 0) {
275 path = path.substring(0, i) + path.substring(i + 2);
276 }
277 // Remove embedded /../ if possible
278 i = 0;
279 while ((i = path.indexOf("/../", i)) >= 0) {
280 /*
281 * A "/../" will cancel the previous segment and itself,
297 if ((limit = path.lastIndexOf('/', i - 1)) >= 0) {
298 path = path.substring(0, limit+1);
299 } else {
300 break;
301 }
302 }
303 // Remove starting .
304 if (path.startsWith("./") && path.length() > 2)
305 path = path.substring(2);
306
307 // Remove trailing .
308 if (path.endsWith("/."))
309 path = path.substring(0, path.length() -1);
310 }
311
312 setURL(u, protocol, host, port, authority, userInfo, path, query, ref);
313 }
314
315 /**
316 * Returns the default port for a URL parsed by this handler. This method
317 * is meant to be overidden by handlers with default port numbers.
318 * @return the default port for a {@code URL} parsed by this handler.
319 * @since 1.3
320 */
321 protected int getDefaultPort() {
322 return -1;
323 }
324
325 /**
326 * Provides the default equals calculation. May be overidden by handlers
327 * for other protocols that have different requirements for equals().
328 * This method requires that none of its arguments is null. This is
329 * guaranteed by the fact that it is only called by java.net.URL class.
330 * @param u1 a URL object
331 * @param u2 a URL object
332 * @return {@code true} if the two urls are
333 * considered equal, ie. they refer to the same
334 * fragment in the same file.
335 * @since 1.3
336 */
337 protected boolean equals(URL u1, URL u2) {
338 String ref1 = u1.getRef();
339 String ref2 = u2.getRef();
340 return (ref1 == ref2 || (ref1 != null && ref1.equals(ref2))) &&
341 sameFile(u1, u2);
342 }
343
344 /**
345 * Provides the default hash calculation. May be overidden by handlers for
346 * other protocols that have different requirements for hashCode
347 * calculation.
348 * @param u a URL object
349 * @return an {@code int} suitable for hash table indexing
350 * @since 1.3
351 */
352 protected int hashCode(URL u) {
353 int h = 0;
354
355 // Generate the protocol part.
356 String protocol = u.getProtocol();
357 if (protocol != null)
358 h += protocol.hashCode();
359
360 // Generate the host part.
361 InetAddress addr = getHostAddress(u);
362 if (addr != null) {
363 h += addr.hashCode();
364 } else {
365 String host = u.getHost();
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233 throw new IllegalArgumentException("Invalid port number :" +
234 port);
235 start = i;
236 // If the authority is defined then the path is defined by the
237 // spec only; See RFC 2396 Section 5.2.4.
238 if (authority != null && authority.length() > 0)
239 path = "";
240 }
241
242 if (host == null) {
243 host = "";
244 }
245
246 // Parse the file path if any
247 if (start < limit) {
248 if (spec.charAt(start) == '/') {
249 path = spec.substring(start, limit);
250 } else if (path != null && path.length() > 0) {
251 isRelPath = true;
252 int ind = path.lastIndexOf('/');
253 String separator = "";
254 if (ind == -1 && authority != null)
255 separator = "/";
256 path = path.substring(0, ind + 1) + separator +
257 spec.substring(start, limit);
258
259 } else {
260 String separator = (authority != null) ? "/" : "";
261 path = separator + spec.substring(start, limit);
262 }
263 } else if (queryOnly && path != null) {
264 int ind = path.lastIndexOf('/');
265 if (ind < 0)
266 ind = 0;
267 path = path.substring(0, ind) + "/";
268 }
269 if (path == null)
270 path = "";
271
272 if (isRelPath) {
273 // Remove embedded /./
274 while ((i = path.indexOf("/./")) >= 0) {
275 path = path.substring(0, i) + path.substring(i + 2);
276 }
277 // Remove embedded /../ if possible
278 i = 0;
279 while ((i = path.indexOf("/../", i)) >= 0) {
280 /*
281 * A "/../" will cancel the previous segment and itself,
297 if ((limit = path.lastIndexOf('/', i - 1)) >= 0) {
298 path = path.substring(0, limit+1);
299 } else {
300 break;
301 }
302 }
303 // Remove starting .
304 if (path.startsWith("./") && path.length() > 2)
305 path = path.substring(2);
306
307 // Remove trailing .
308 if (path.endsWith("/."))
309 path = path.substring(0, path.length() -1);
310 }
311
312 setURL(u, protocol, host, port, authority, userInfo, path, query, ref);
313 }
314
315 /**
316 * Returns the default port for a URL parsed by this handler. This method
317 * is meant to be overridden by handlers with default port numbers.
318 * @return the default port for a {@code URL} parsed by this handler.
319 * @since 1.3
320 */
321 protected int getDefaultPort() {
322 return -1;
323 }
324
325 /**
326 * Provides the default equals calculation. May be overridden by handlers
327 * for other protocols that have different requirements for equals().
328 * This method requires that none of its arguments is null. This is
329 * guaranteed by the fact that it is only called by java.net.URL class.
330 * @param u1 a URL object
331 * @param u2 a URL object
332 * @return {@code true} if the two urls are
333 * considered equal, ie. they refer to the same
334 * fragment in the same file.
335 * @since 1.3
336 */
337 protected boolean equals(URL u1, URL u2) {
338 String ref1 = u1.getRef();
339 String ref2 = u2.getRef();
340 return (ref1 == ref2 || (ref1 != null && ref1.equals(ref2))) &&
341 sameFile(u1, u2);
342 }
343
344 /**
345 * Provides the default hash calculation. May be overridden by handlers for
346 * other protocols that have different requirements for hashCode
347 * calculation.
348 * @param u a URL object
349 * @return an {@code int} suitable for hash table indexing
350 * @since 1.3
351 */
352 protected int hashCode(URL u) {
353 int h = 0;
354
355 // Generate the protocol part.
356 String protocol = u.getProtocol();
357 if (protocol != null)
358 h += protocol.hashCode();
359
360 // Generate the host part.
361 InetAddress addr = getHostAddress(u);
362 if (addr != null) {
363 h += addr.hashCode();
364 } else {
365 String host = u.getHost();
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