Skip to content

Commit a624ffe

Browse files
author
pborissow
committed
- Updated Date parser to use the javaxt.utils.Date class if it is available. Falls back to the native Date parser if the javaxt-core is not found.
 - Added ability to create/output an RSS Document. See Feed.toXML() method. git-svn-id: svn://192.168.0.80/JavaXT/javaxt-rss@933 2c7b0aa6-e0b2-3c4e-bb4a-8b65b6c465ff
1 parent 62799b7 commit a624ffe

File tree

3 files changed

+166
-31
lines changed

3 files changed

+166
-31
lines changed

‎src/javaxt/rss/Feed.java

Lines changed: 72 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,8 @@
11
package javaxt.rss;
2+
import java.io.ByteArrayInputStream;
3+
import java.io.InputStream;
4+
import javax.xml.parsers.DocumentBuilder;
5+
import javax.xml.parsers.DocumentBuilderFactory;
26
import org.w3c.dom.*;
37

48
//******************************************************************************
@@ -26,7 +30,7 @@ public class Feed {
2630
//**************************************************************************
2731
//** Constructor
2832
//**************************************************************************
29-
protected Feed(){}
33+
public Feed(){}
3034

3135

3236
//**************************************************************************
@@ -123,9 +127,8 @@ public Location getLocation(){
123127
//**************************************************************************
124128
//** getLastUpdate
125129
//**************************************************************************
126-
public java.util.Date getLastUpdate(){
127-
return lastUpdate;
128-
}
130+
public java.util.Date getLastUpdate(){ return lastUpdate; }
131+
public void setLastUpdate(java.util.Date date){ this.lastUpdate = date; }
129132

130133

131134
//**************************************************************************
@@ -138,6 +141,15 @@ public Item[] getItems(){
138141
}
139142

140143

144+
//**************************************************************************
145+
//** addItem
146+
//**************************************************************************
147+
/** Used to add an RSS item to the Feed.
148+
*/
149+
public void addItem(Item item){
150+
items.add(item);
151+
}
152+
141153

142154
//**************************************************************************
143155
//** getRefreshInterval
@@ -149,7 +161,11 @@ public Item[] getItems(){
149161
public Integer getRefreshInterval(){
150162
return interval;
151163
}
152-
164+
165+
public void setRefreshInterval(Integer interval){
166+
this.interval = interval;
167+
}
168+
153169

154170
//**************************************************************************
155171
//** toString
@@ -166,5 +182,56 @@ public String toString(){
166182
}
167183
return out.toString();
168184
}
185+
186+
187+
//**************************************************************************
188+
//** toXML
189+
//**************************************************************************
190+
/** Returns an RSS/XML document for this Feed.
191+
*/
192+
public org.w3c.dom.Document toXML(){
193+
StringBuffer str = new StringBuffer("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
194+
str.append("<rss xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\" xmlns:atom=\"http://www.w3.org/2005/Atom\" version=\"2.0\" xmlns:media=\"http://search.yahoo.com/mrss/\">\n");
195+
str.append(" <channel>\n");
196+
str.append(" <title>" + getTitle() + "</title>\n");
197+
str.append(" <link>" + getLink() + "</link>\n");
198+
str.append(" <lastBuildDate>" + formatDate(lastUpdate==null ? new java.util.Date() : lastUpdate) + "</lastBuildDate>\n");
199+
str.append(" <generator>JavaXT RSS</generator>\n");
200+
str.append(" <ttl>" + (interval==null ? 15 : interval) + "</ttl>\n");
201+
for (Item item : items){
202+
str.append(item.toXML());
203+
}
204+
str.append(" </channel>\n");
205+
str.append("</rss>");
206+
207+
208+
return createDocument(str.toString());
209+
}
169210

211+
212+
//**************************************************************************
213+
//** createDocument
214+
//**************************************************************************
215+
private Document createDocument(String xml){
216+
try{
217+
DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
218+
DocumentBuilder builder = builderFactory.newDocumentBuilder();
219+
InputStream is = new ByteArrayInputStream(xml.getBytes("UTF-8"));
220+
return builder.parse(is);
221+
}
222+
catch(Exception e){
223+
//e.printStackTrace();
224+
return null;
225+
}
226+
}
227+
228+
229+
//**************************************************************************
230+
//** formatDate
231+
//**************************************************************************
232+
protected static String formatDate(java.util.Date date){
233+
java.text.DateFormat formatter = new java.text.SimpleDateFormat(
234+
"EEE, dd MMM yyyy HH:mm:ss zzz", java.util.Locale.US);
235+
return formatter.format(date);
236+
}
170237
}

‎src/javaxt/rss/Item.java

Lines changed: 67 additions & 18 deletions
Original file line numberDiff line numberDiff line change
@@ -11,7 +11,6 @@
1111

1212
public class Item {
1313

14-
1514
private String title;
1615
private String description;
1716
private String author = null;
@@ -28,8 +27,9 @@ public class Item {
2827
//**************************************************************************
2928
//** Constructor
3029
//**************************************************************************
31-
protected Item(){}
32-
30+
public Item(){}
31+
32+
3333
//**************************************************************************
3434
//** Constructor
3535
//**************************************************************************
@@ -179,10 +179,7 @@ else if (nodeName.equals("long") || nodeName.equals(geoNS + ":long")){
179179
}
180180
}
181181

182-
183182

184-
185-
186183
//**************************************************************************
187184
//** getTitle
188185
//**************************************************************************
@@ -256,8 +253,8 @@ public void setLink(java.net.URL url){
256253
//**************************************************************************
257254
//** getDate
258255
//**************************************************************************
259-
/** Return the date/time stamp associated with the current entry. Uses the
260-
* pubDate if it exists. Otherwise, returns dc:date
256+
/** Return the date/time stamp associated with the current entry. Uses the
257+
* pubDate if it exists. Otherwise, returns dc:date
261258
*/
262259
public java.util.Date getDate(){
263260
return date;
@@ -300,14 +297,21 @@ public Location getLocation(){
300297
return location;
301298
}
302299

303-
304300

301+
//**************************************************************************
302+
//** getNodeList
303+
//**************************************************************************
304+
/** Returns the NodeList used to instantiate this class via the RSS Parser.
305+
* @deprecated This method will be removed in future releases.
306+
*/
305307
public NodeList getNodeList(){
306308
return nodeList;
307309
}
308310

309311

310-
312+
//**************************************************************************
313+
//** toString
314+
//**************************************************************************
311315
public String toString(){
312316
StringBuffer out = new StringBuffer();
313317
String br = "\r\n";
@@ -330,13 +334,58 @@ public String toString(){
330334
return out.toString();
331335
}
332336

333-
334-
// public String toXML(){
335-
//
336-
// java.text.DateFormat formatter = new java.text.SimpleDateFormat(
337-
// "EEE, dd MMM yyyy HH:mm:ss Z", java.util.Locale.ENGLISH);
338-
// String d = formatter.format(date);
339-
//
340-
// }
341337

338+
//**************************************************************************
339+
//** toXML
340+
//**************************************************************************
341+
/** Returns an XML fragment used by the Feed class to generate an RSS/XML
342+
* document.
343+
*/
344+
protected String toXML(){
345+
StringBuffer str = new StringBuffer();
346+
347+
java.util.HashMap<String, Object> info = new java.util.HashMap<String, Object>();
348+
349+
String title = getTitle();
350+
if (title!=null){
351+
title = title.trim();
352+
if (title.length()>0) info.put("title", title);
353+
}
354+
355+
String desc = getDescription();
356+
if (desc!=null){
357+
desc = desc.trim();
358+
if (desc.length()>0) info.put("description", desc);
359+
}
360+
361+
if (link!=null) info.put("link", link);
362+
if (date!=null) info.put("pubDate", date);
363+
364+
365+
if (!info.isEmpty()){
366+
str.append(" <item>\n");
367+
java.util.Iterator<String> it = info.keySet().iterator();
368+
while (it.hasNext()){
369+
String key = it.next();
370+
Object val = info.get(key);
371+
str.append(" <" + key + ">");
372+
if (val instanceof String){
373+
str.append("<![CDATA[");
374+
str.append(val);
375+
str.append("]]>");
376+
}
377+
else if (val instanceof java.util.Date){
378+
String d = Feed.formatDate((java.util.Date) val);
379+
str.append(d);
380+
}
381+
else{
382+
str.append(val);
383+
}
384+
str.append("</" + key + ">\n");
385+
}
386+
str.append(" </item>\n");
387+
}
388+
389+
return str.toString();
390+
}
342391
}

‎src/javaxt/rss/Parser.java

Lines changed: 27 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -209,20 +209,24 @@ private static boolean hasChildren(Node node){
209209

210210
private static String[] SupportedFormats = new String[] {
211211

212-
"EEE, d MMM yy HH:mm:ss z", // Mon, 07 Jun 76 13:02:09 EST
213212

214213
"EEE, d MMM yyyy HH:mm:ss z", // Mon, 7 Jun 1976 13:02:09 EST
215214
"EEE, dd MMM yyyy HH:mm:ss z", // Mon, 07 Jun 1976 13:02:09 EST
215+
"EEE, dd MMM yyyy HH:mm:ss", // Mon, 07 Jun 1976 13:02:09 EST
216216

217217
"EEE MMM dd HH:mm:ss z yyyy", // Mon Jun 07 13:02:09 EST 1976
218218
"EEE MMM d HH:mm:ss z yyyy", // Mon Jun 7 13:02:09 EST 1976
219219

220220
"EEE MMM dd HH:mm:ss yyyy", // Mon Jun 07 13:02:09 1976
221221
"EEE MMM d HH:mm:ss yyyy", // Mon Jun 7 13:02:09 1976
222222

223+
"EEE MMM dd yyyy HH:mm:ss z", //"Mon Jun 07 2013 00:00:00 GMT-0500 (Eastern Standard Time)"
224+
225+
"yyyy-MM-dd HH:mm:ss.SSS Z", // 1976-06-07 13:02:36.000 America/New_York
223226
"yyyy-MM-dd HH:mm:ss.SSSZ", // 1976-06-07 01:02:09.000-0500
224227
"yyyy-MM-dd HH:mm:ss.SSS", // 1976-06-07 01:02:09.000
225228

229+
"yyyy-MM-dd HH:mm:ss Z", // 1976-06-07 13:02:36 America/New_York
226230
"yyyy-MM-dd HH:mm:ssZ", // 1976-06-07 13:02:36-0500
227231
"yyyy-MM-dd HH:mm:ss", // 1976-06-07 01:02:09
228232

@@ -239,7 +243,7 @@ private static boolean hasChildren(Node node){
239243
"dd-MMM-yy h:mm:ss a", // 07-Jun-76 1:02:09 PM
240244
//"d-MMM-yy h:mm:ss a", // 7-Jun-76 1:02:09 PM
241245

242-
246+
"yyyy-MM-dd HH:mm Z", // 1976-06-07 13:02 America/New_York"
243247
"yyyy-MM-dd HH:mmZ", // 1976-06-07T13:02-0500
244248
"yyyy-MM-dd HH:mm", // 1976-06-07T13:02
245249
"yyyy-MM-dd", // 1976-06-07
@@ -253,7 +257,14 @@ private static boolean hasChildren(Node node){
253257
"M/d/yy h:mm:ss a", // 6/7/1976 1:02:09 PM
254258
"M/d/yy h:mm a", // 6/7/1976 1:02 PM
255259

260+
"MM/dd/yy HH:mm:ss Z", // 06/07/1976 13:02:09 America/New_York
261+
"MM/dd/yy HH:mm:ss", // 06/07/1976 13:02:09
262+
"MM/dd/yy HH:mm Z", // 06/07/1976 13:02 America/New_York
263+
"MM/dd/yy HH:mm", // 06/07/1976 13:02
264+
265+
"MM/dd/yyyy HH:mm:ss Z", // 06/07/1976 13:02:09 America/New_York
256266
"MM/dd/yyyy HH:mm:ss", // 06/07/1976 13:02:09
267+
"MM/dd/yyyy HH:mm Z", // 06/07/1976 13:02 America/New_York
257268
"MM/dd/yyyy HH:mm", // 06/07/1976 13:02
258269

259270
"M/d/yy", // 6/7/76
@@ -274,6 +285,15 @@ private static boolean hasChildren(Node node){
274285
protected static java.util.Date getDate(String date) throws java.text.ParseException {
275286

276287
try{
288+
//Try to parse the date using the javaxt-core library
289+
Class Date = new ClassLoader("javaxt.utils.Date", "javaxt-core.jar").load();
290+
java.lang.reflect.Constructor constructor = Date.getDeclaredConstructor(new Class[] {String.class});
291+
java.lang.reflect.Method method = Date.getDeclaredMethod("getDate");
292+
Object instance = constructor.newInstance(new Object[] { date });
293+
return (java.util.Date) method.invoke(instance);
294+
}
295+
catch(Exception e){
296+
277297

278298
//Special Case: Java fails to parse the "T" in strings like
279299
//"1976-06-07T01:02:09.000" and "1976-06-07T13:02-0500"
@@ -285,23 +305,22 @@ protected static java.util.Date getDate(String date) throws java.text.ParseExcep
285305

286306

287307
//Loop through all known date formats and try to convert the string to a date
288-
for (int i=0; i<SupportedFormats.length; i++){
308+
for (String format : SupportedFormats){
289309

290310
//Special Case: Java fails to parse the "Z" in "1976-06-07 00:00:00Z"
291-
if (date.endsWith("Z") && SupportedFormats[i].endsWith("Z")){
311+
if (date.endsWith("Z") && format.endsWith("Z")){
292312
date = date.substring(0, date.length()-1) + "UTC";
293313
}
294314

295315
try{
296-
return parseDate(date, SupportedFormats[i]);
316+
return parseDate(date, format);
297317
}
298-
catch(java.text.ParseException e){
318+
catch(java.text.ParseException ex){
299319
}
300320
}
301321

302322
}
303-
catch(Exception e){
304-
}
323+
305324

306325
//If we're still here, throw an exception
307326
throw new java.text.ParseException("Failed to parse date: " + date, 0);

0 commit comments

Comments
 (0)
pFad - Phonifier reborn

Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.

Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.


Alternative Proxies:

Alternative Proxy

pFad Proxy

pFad v3 Proxy

pFad v4 Proxy