001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.servicemix.jbi.util;
018
019 import java.io.UnsupportedEncodingException;
020 import java.net.URI;
021 import java.net.URISyntaxException;
022 import java.net.URLDecoder;
023 import java.net.URLEncoder;
024 import java.util.ArrayList;
025 import java.util.Collections;
026 import java.util.HashMap;
027 import java.util.Iterator;
028 import java.util.List;
029 import java.util.Map;
030
031 /**
032 * @version $Revision$
033 */
034 public class URISupport {
035
036 public static class CompositeData {
037 String scheme;
038
039 String path;
040
041 URI components[];
042
043 Map parameters;
044
045 String fragment;
046
047 String host;
048
049 public URI[] getComponents() {
050 return components;
051 }
052
053 public String getFragment() {
054 return fragment;
055 }
056
057 public Map getParameters() {
058 return parameters;
059 }
060
061 public String getScheme() {
062 return scheme;
063 }
064
065 public String getPath() {
066 return path;
067 }
068
069 public String getHost() {
070 return host;
071 }
072
073 public URI toURI() throws URISyntaxException {
074 StringBuffer sb = new StringBuffer();
075 if (scheme != null) {
076 sb.append(scheme);
077 sb.append(':');
078 }
079
080 if (host != null && host.length() != 0) {
081 sb.append(host);
082 } else {
083 sb.append('(');
084 for (int i = 0; i < components.length; i++) {
085 if (i != 0) {
086 sb.append(',');
087 }
088 sb.append(components[i].toString());
089 }
090 sb.append(')');
091 }
092
093 if (path != null) {
094 sb.append('/');
095 sb.append(path);
096 }
097 if (!parameters.isEmpty()) {
098 sb.append("?");
099 sb.append(createQueryString(parameters));
100 }
101 if (fragment != null) {
102 sb.append("#");
103 sb.append(fragment);
104 }
105 return new URI(sb.toString());
106 }
107 }
108
109 public static Map parseQuery(String uri) throws URISyntaxException {
110 try {
111 Map rc = new HashMap();
112 if (uri != null) {
113 String[] parameters = uri.split("&");
114 for (int i = 0; i < parameters.length; i++) {
115 int p = parameters[i].indexOf("=");
116 if (p >= 0) {
117 String name = URLDecoder.decode(parameters[i].substring(0, p), "UTF-8");
118 String value = URLDecoder.decode(parameters[i].substring(p + 1), "UTF-8");
119 rc.put(name, value);
120 } else {
121 rc.put(parameters[i], null);
122 }
123 }
124 }
125 return rc;
126 } catch (UnsupportedEncodingException e) {
127 throw (URISyntaxException) new URISyntaxException(e.toString(), "Invalid encoding").initCause(e);
128 }
129 }
130
131 public static Map parseParamters(URI uri) throws URISyntaxException {
132 return uri.getQuery() == null ? Collections.EMPTY_MAP : parseQuery(stripPrefix(uri.getQuery(), "?"));
133 }
134
135 /**
136 * Removes any URI query from the given uri
137 */
138 public static URI removeQuery(URI uri) throws URISyntaxException {
139 return createURIWithQuery(uri, null);
140 }
141
142 /**
143 * Creates a URI with the given query
144 */
145 public static URI createURIWithQuery(URI uri, String query) throws URISyntaxException {
146 return new URI(uri.getScheme(), uri.getUserInfo(), uri.getHost(), uri.getPort(), uri.getPath(), query, uri.getFragment());
147 }
148
149 public static CompositeData parseComposite(URI uri) throws URISyntaxException {
150
151 CompositeData rc = new CompositeData();
152 rc.scheme = uri.getScheme();
153 String ssp = stripPrefix(uri.getSchemeSpecificPart().trim(), "//").trim();
154
155 parseComposite(uri, rc, ssp);
156
157 rc.fragment = uri.getFragment();
158 return rc;
159 }
160
161 /**
162 * @param uri
163 * @param rc
164 * @param ssp
165 * @param p
166 * @throws URISyntaxException
167 */
168 private static void parseComposite(URI uri, CompositeData rc, String ssp) throws URISyntaxException {
169 String componentString;
170 String params;
171
172 if (!checkParenthesis(ssp)) {
173 throw new URISyntaxException(uri.toString(), "Not a matching number of '(' and ')' parenthesis");
174 }
175
176 int p;
177 int intialParen = ssp.indexOf("(");
178 if (intialParen == 0) {
179 rc.host = ssp.substring(0, intialParen);
180 p = rc.host.indexOf("/");
181 if (p >= 0) {
182 rc.path = rc.host.substring(p);
183 rc.host = rc.host.substring(0, p);
184 }
185 p = ssp.lastIndexOf(")");
186 componentString = ssp.substring(intialParen + 1, p);
187 params = ssp.substring(p + 1).trim();
188
189 } else {
190 componentString = ssp;
191 params = "";
192 }
193
194 String components[] = splitComponents(componentString);
195 rc.components = new URI[components.length];
196 for (int i = 0; i < components.length; i++) {
197 rc.components[i] = new URI(components[i].trim());
198 }
199
200 p = params.indexOf("?");
201 if (p >= 0) {
202 if (p > 0) {
203 rc.path = stripPrefix(params.substring(0, p), "/");
204 }
205 rc.parameters = parseQuery(params.substring(p + 1));
206 } else {
207 if (params.length() > 0) {
208 rc.path = stripPrefix(params, "/");
209 }
210 rc.parameters = Collections.EMPTY_MAP;
211 }
212 }
213
214 /**
215 * @param componentString
216 * @return
217 */
218 private static String[] splitComponents(String str) {
219 List<String> l = new ArrayList<String>();
220
221 int last = 0;
222 int depth = 0;
223 char chars[] = str.toCharArray();
224 for (int i = 0; i < chars.length; i++) {
225 switch (chars[i]) {
226 case '(':
227 depth++;
228 break;
229 case ')':
230 depth--;
231 break;
232 case ',':
233 if (depth == 0) {
234 String s = str.substring(last, i);
235 l.add(s);
236 last = i + 1;
237 }
238 break;
239 default:
240 break;
241 }
242 }
243
244 String s = str.substring(last);
245 if (s.length() != 0) {
246 l.add(s);
247 }
248
249 String rc[] = new String[l.size()];
250 l.toArray(rc);
251 return rc;
252 }
253
254 public static String stripPrefix(String value, String prefix) {
255 if (value.startsWith(prefix)) {
256 return value.substring(prefix.length());
257 }
258 return value;
259 }
260
261 public static URI stripScheme(URI uri) throws URISyntaxException {
262 return new URI(stripPrefix(uri.getSchemeSpecificPart().trim(), "//"));
263 }
264
265 public static String createQueryString(Map options) throws URISyntaxException {
266 try {
267 if (options.size() > 0) {
268 StringBuffer rc = new StringBuffer();
269 boolean first = true;
270 for (Iterator iter = options.keySet().iterator(); iter.hasNext();) {
271 if (first) {
272 first = false;
273 } else {
274 rc.append("&");
275 }
276 String key = (String) iter.next();
277 String value = (String) options.get(key);
278 rc.append(URLEncoder.encode(key, "UTF-8"));
279 rc.append("=");
280 rc.append(URLEncoder.encode(value, "UTF-8"));
281 }
282 return rc.toString();
283 } else {
284 return "";
285 }
286 } catch (UnsupportedEncodingException e) {
287 throw (URISyntaxException) new URISyntaxException(e.toString(), "Invalid encoding").initCause(e);
288 }
289 }
290
291 /**
292 * Creates a URI from the original URI and the remaining paramaters
293 *
294 * @throws URISyntaxException
295 */
296 public static URI createRemainingURI(URI originalURI, Map params) throws URISyntaxException {
297 String s = createQueryString(params);
298 if (s.length() == 0) {
299 s = null;
300 }
301 return createURIWithQuery(originalURI, s);
302 }
303
304 public static URI changeScheme(URI bindAddr, String scheme) throws URISyntaxException {
305 return new URI(scheme, bindAddr.getUserInfo(), bindAddr.getHost(), bindAddr.getPort(),
306 bindAddr.getPath(), bindAddr.getQuery(), bindAddr.getFragment());
307 }
308
309 public static boolean checkParenthesis(String str) {
310 boolean result = true;
311 if (str != null) {
312 int open = 0;
313 int closed = 0;
314
315 int i = str.indexOf('(');
316 while (i >= 0) {
317 open++;
318 i = str.indexOf('(', i + 1);
319 }
320 i = str.indexOf(')');
321 while (i >= 0) {
322 closed++;
323 i = str.indexOf(')', i + 1);
324 }
325 result = open == closed;
326 }
327 return result;
328 }
329
330 public int indexOfParenthesisMatch(String str) {
331 int result = -1;
332
333 return result;
334 }
335
336 }