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1 package com.openedit.hittracker;
2
3 import java.io.IOException  ;
4 import java.io.Serializable ;
5 import java.util.ArrayList ;
6 import java.util.Collections ;
7 import java.util.Iterator ;
8 import java.util.List ;
9
10 public abstract class HitTracker implements Serializable
11 {
12 protected int fieldPage = 1;
13 protected int fieldHitsPerPage = 12;
14 protected int fieldCurrentHit;
15 protected SearchQuery fieldSearchQuery;
19
20 protected boolean fieldUseRandom;
21 protected List fieldRandomLookup;
22 protected String fieldOrdering;
23 protected String fieldIndexId;
24 protected int fieldMaxPageListing = 10;
25
26 public HitTracker()
27 {
28
29 }
30
31 public List getPartOfPageOfHits(int inStart, int inEnd) throws Exception
32 {
33 List page = new ArrayList ();
34 int count = ( getPage() -1 ) * getHitsPerPage(); count = count + inStart; for (int i = inStart; i < getHitsPerPage() && i < inEnd; i++)
37 {
38 if ( count < getTotal())
39 {
40 page.add(get(count));
41 count++;
42 }
43 }
44 return page;
45 }
46
47 public abstract Object get(int count) throws IOException ;
48
49 public List getPageOfHits() throws IOException
50 {
51 int inHitsPerPage = getHitsPerPage();
53 List page = new ArrayList (inHitsPerPage);
54 int count = ( getPage() -1 ) * inHitsPerPage; for (int i = 0; i < inHitsPerPage; i++)
56 {
57 if ( count < getTotal())
58 {
59 page.add(get(count));
60 count++;
61 }
62 else
63 {
64 break;
65 }
66 }
67 return page;
68 }
69 public List getPageInRows(int inColCount) throws Exception
70 {
71 return getPageInRows(getHitsPerPage(), inColCount);
72 }
73
74 public List getPageInRows(int inHitsPerPage, int inColCount) throws Exception
75 {
76 setHitsPerPage(inHitsPerPage);
78 List page = getPageOfHits();
79
80 double rowscount = (double)page.size() / (double)inColCount;
82
83 List rows = new ArrayList ();
84 for (int i = 0; i < rowscount; i++)
85 {
86 int start = i*inColCount;
87 int end = i*inColCount + inColCount;
88 List sublist = page.subList(start,Math.min( page.size(),end ));
89 rows.add(sublist);
90 }
91 return rows;
92 }
93
94 public int getHitsPerPage()
95 {
96 return fieldHitsPerPage;
97 }
98 public void setHitsPerPage(int inHitsPerPage)
99 {
100 if( fieldHitsPerPage != inHitsPerPage)
101 {
102 if( getPage() * inHitsPerPage > getTotal())
103 {
104 setPage(1);
105 }
106 }
107 fieldHitsPerPage = inHitsPerPage;
108 }
109 public int getPage()
110 {
111 return fieldPage;
112 }
113 public void setPage(int inPage)
114 {
115 fieldPage = inPage;
116 }
117 public abstract Iterator getAllHits();
119
120 public Iterator iterator()
121 {
122 return getAllHits();
123 }
124 public int getCurrentHit()
125 {
126 return fieldCurrentHit;
127 }
128 public void setCurrentHit(int inCurrentHit)
129 {
130 fieldCurrentHit = inCurrentHit;
131 }
132 public abstract boolean contains( Object inHit);
133
134 public abstract int getTotal();
135
136
137 public int size()
138 {
139 return getTotal();
140 }
141
142 public int getSize()
143 {
144 return getTotal();
145 }
146 public int getTotalPages()
147 {
148 double pages = (double)getTotal() / (double)getHitsPerPage();
149 if ( pages % 1 > 0)
150 {
151 pages++;
152 }
153 return (int)pages;
154 }
155 public Integer nextPage()
156 {
157 int page = getPage() + 1;
158 if ( page > getTotalPages())
159 {
160 return null;
161 }
162 else
163 {
164 return new Integer ( page);
165 }
166 }
167 public Integer prevPage()
168 {
169 int page = getPage() -1;
170 if ( page < 1)
171 {
172 return null;
173 }
174 else
175 {
176 return new Integer ( page);
177 }
178 }
179 public Integer getPageStart()
180 {
181 if( getTotal() == 0)
182 {
183 return null;
184 }
185 int start = (getPage()-1) * getHitsPerPage();
186 return new Integer (start+1);
187 }
188 public Integer getPageEnd()
189 {
190 if( getTotal() == 0)
191 {
192 return null;
193 }
194 int start = getPage() * getHitsPerPage();
195 if( start > getTotal())
196 {
197 return new Integer ( getTotal() );
198 }
199 return new Integer (start);
200
201 }
202 public SearchQuery getSearchQuery()
203 {
204 return fieldSearchQuery;
205 }
206 public String getQuery()
207 {
208 return getSearchQuery().toQuery();
209 }
210
215 public List linkRange()
216 {
217 int totalPages = getTotalPages();
218 int page = getPage();
219 int start = 1;
220
221 if( page < getMaxPageListing()/2) {
223 start = 1; }
225 else if( page + getMaxPageListing()/2 + 1 >= totalPages) {
227 start = 1+ totalPages - getMaxPageListing(); start = Math.max(1, start); }
230 else
231 {
232 start = 1 + page - getMaxPageListing()/2;
233 }
234
235 int count = Math.min(totalPages, getMaxPageListing()); List hits = new ArrayList (count);
237 for (int i = 0; i < count; i++)
238 {
239 hits.add( new Integer (start+i));
240 }
241 return hits;
242 }
243
244 public List linksBefore()
245 {
246 List range = linkRange();
247 int i = 0;
248 for (; i < range.size(); i++)
249 {
250 Integer in = (Integer )range.get(i);
251 if( in.intValue() >= getPage())
252 {
253 break;
254 }
255 }
256 return range.subList(0,i);
257
258 }
272 public List linksAfter()
273 {
274 if( getTotalPages() == getPage() )
275 {
276 return Collections.EMPTY_LIST;
277 }
278 List range = linkRange();
279 if( range.size() == 1) {
281 return Collections.EMPTY_LIST;
282 }
283 int start = 0;
284 for (int i=0; i < range.size(); i++)
285 {
286 Integer in = (Integer )range.get(i);
287 if( in.intValue() > getPage())
288 {
289 start = i;
290 break;
291 }
292 }
293 return range.subList(start,range.size());
294
295 }
314
315
343 public String getUserQuery()
344 {
345 return getSearchQuery().getInput("description");
346 }
347 public String getInput( String inKey)
348 {
349 return getSearchQuery().getInput(inKey );
350 }
351 public String getOrdering()
352 {
353 return getSearchQuery().getSortBy();
354 }
355 public String getIndexId()
356 {
357 return fieldIndexId;
358 }
359 public void setIndexId(String inIndexCounter)
360 {
361 fieldIndexId = inIndexCounter;
362 }
363
364 public int getMaxPageListing()
365 {
366 return fieldMaxPageListing;
367 }
368
369 public void setMaxPageListing(int inMaxPageListing)
370 {
371 fieldMaxPageListing = inMaxPageListing;
372 }
373
374 public String getFriendlyQuery()
375 {
376 return getSearchQuery().toFriendly();
377 }
378 public void setSearchQuery(SearchQuery inQuery)
379 {
380
381 fieldSearchQuery = inQuery;
382 }
383
384 }
385 |
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