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1
21 package com.jaspersoft.jasperserver.war.tags;
22
23 import java.io.*;
24 import java.util.*;
25
26 import javax.servlet.ServletContext  ;
27 import javax.servlet.jsp.JspException ;
28 import javax.servlet.jsp.PageContext ;
29 import javax.servlet.jsp.tagext.TagSupport ;
30 import javax.servlet.http.HttpServletRequest ;
31
32 import org.apache.commons.logging.Log;
33 import org.apache.commons.logging.LogFactory;
34 import org.springframework.web.context.WebApplicationContext;
35 import org.springframework.web.context.support.WebApplicationContextUtils;
36
37 import com.jaspersoft.jasperserver.war.common.JasperServerConst;
38 import com.jaspersoft.jasperserver.war.common.JasperServerConstImpl;
39 import com.jaspersoft.jasperserver.api.metadata.common.service.RepositoryService;
40 import com.jaspersoft.jasperserver.api.metadata.user.service.ObjectPermissionService;
41 import com.jaspersoft.jasperserver.api.common.domain.ExecutionContext;
42 import com.jaspersoft.jasperserver.api.common.domain.impl.ExecutionContextImpl;
43
44 import com.jaspersoft.jasperserver.api.metadata.user.domain.User;
45 import com.jaspersoft.jasperserver.api.metadata.user.domain.Role;
46 import com.jaspersoft.jasperserver.api.metadata.user.domain.ObjectPermission;
47
48
56 public class PaginationTag extends TagSupport {
57
58 private String retrvPerm = null;
59 private String htmlOP = null;
60 private List objectList = null;
61 private String resPerPage = null;
62
63 private static final Log log = LogFactory.getLog(PaginationTag.class);
64
65
70 public List getObjectList() {
71 return objectList;
72 }
73
74
79 public void setObjectList(List objectList) {
80 this.objectList = objectList;
81 }
82
83
84
89 public String getHtmlOP() {
90 return htmlOP;
91 }
92
93
98 public void setHtmlOP(String str) {
99 this.htmlOP = str;
100 }
101
102
107 public String getRetrvPerm() {
108 return retrvPerm;
109 }
110
111
116 public void setRetrvPerm(String str) {
117 this.retrvPerm = str;
118 }
119
120
125 public String getResPerPage() {
126 return resPerPage;
127 }
128
129
134 public void setResPerPage(String str) {
135 this.resPerPage = str;
136 }
137
138
142 public int doStartTag() throws JspException {
143
144 HttpServletRequest req = (HttpServletRequest ) pageContext.getRequest();
145 List displayList = null;
146 int resultsPerPage = -1;
147
148 if(resPerPage != null && resPerPage.trim().length() != 0)
149 resultsPerPage = Integer.parseInt(resPerPage);
150
151 if(resultsPerPage <= 0)
152 resultsPerPage = Integer.parseInt(JasperServerConst.RESULTS_PER_PAGE);
153
154 if(objectList == null || objectList.size() == 0) {
155 log.info(" *** Search result object is NULL *** ");
156 return SKIP_BODY;
157 }
158
159 int currentPageSet = -1;
161 String strCurrPageSet = req.getParameter("currentpageset");
162 if(strCurrPageSet == null || strCurrPageSet.trim().length() == 0 || strCurrPageSet.trim().equals("null")) {
163 currentPageSet = 1;
164 } else {
165 currentPageSet = Integer.parseInt(strCurrPageSet);
166 }
167
168 boolean dispNextSet = false;
169 int totObjects = objectList.size();
170 int objListStIndex = -1, objListEndIndex = -1;
171 List objListCopy = new ArrayList(objectList);
172 int totalPageSets = getFirstLastSetDisplay(objectList.size(), resultsPerPage);
173
174 if(totObjects > currentPageSet*JasperServerConst.PAGE_SET_COUNT*resultsPerPage) {
175 dispNextSet = true;
176 objListStIndex = (currentPageSet-1)*JasperServerConst.PAGE_SET_COUNT*resultsPerPage;
177 objListEndIndex = currentPageSet*JasperServerConst.PAGE_SET_COUNT*resultsPerPage - 1;
178 objectList = objectList.subList(objListStIndex, objListEndIndex+1);
179 totObjects = objectList.size();
180 } else {
181 objListStIndex = (currentPageSet-1)*JasperServerConst.PAGE_SET_COUNT*resultsPerPage;
182 objListEndIndex = totObjects - 1;
183 objectList = objectList.subList(objListStIndex, objListEndIndex+1);
184 totObjects = objectList.size();
185 }
186
187 int totPages = totObjects/resultsPerPage;
188 if(totObjects%resultsPerPage != 0)
189 totPages += 1;
190
191 int pagenumber = -1, startIndex = -1, endIndex = -1, hrefPageNo = -1;
192 String pageNo = req.getParameter("currentpageno");
193
194 if(pageNo == null || pageNo.trim().length() == 0 || pageNo.trim().equals("null")) {
195 pagenumber = 1;
196 } else {
197 pagenumber = Integer.parseInt(pageNo);
198 }
199
200 if(currentPageSet == 1) {
202 if(totObjects <= (pagenumber-1)*(resultsPerPage)) {
203 pagenumber = pagenumber - 1;
204 }
205 } else {
206 if(totObjects <= ((pagenumber%((currentPageSet-1)*(JasperServerConst.PAGE_SET_COUNT)))-1)*(resultsPerPage)) {
207 pagenumber = pagenumber - 1;
208 }
209 }
210
211 StringBuffer sbf = new StringBuffer ();
212 for(int ix = 1; ix <= totPages; ix++) {
213 hrefPageNo = ((currentPageSet-1)*JasperServerConst.PAGE_SET_COUNT) + ix;
214 if(hrefPageNo == pagenumber) {
215 sbf.append("<font color=\"#003399\" style=\"size:11px;\">" + hrefPageNo + "</font>" + " ");
216 } else {
217 sbf.append("<a HREF=\"javascript:pagenoclick(");
218 sbf.append(hrefPageNo + ");\"");
219 sbf.append(">" + hrefPageNo + "</a> ");
220 }
221 }
222
223 int pagenumber_bkup = pagenumber;
224 pagenumber = pagenumber - ((currentPageSet-1) * JasperServerConst.PAGE_SET_COUNT);
225
226 startIndex = ((pagenumber-1)*resultsPerPage);
227 if(totObjects < pagenumber*(resultsPerPage))
228 endIndex = totObjects - 1;
229 else
230 endIndex = (pagenumber*resultsPerPage) - 1;
231
232 displayList = new ArrayList();
233 for(int iy = startIndex; iy <= endIndex; iy++) {
234 displayList.add(objectList.get(iy));
235 }
236
237 sbf.append(" ");
238 sbf.append("<input type=\"hidden\" name=\"currentpageno\" value=\"" + pagenumber_bkup + "\"/>");
239 req.setAttribute("displayList", displayList);
240
241 if(currentPageSet > 1) {
243 sbf.insert(0, "<a HREF=\"javascript:prevSetclick(" + (currentPageSet-1) + ");\"" + "> Prev Set " + "</a>");
244 }
245
246 if(currentPageSet > 2) {
248 sbf.insert(0, "<a HREF=\"javascript:prevSetclick(1);\"> First Set " + "</a>");
249 }
250
251 if(dispNextSet) {
253 sbf.append(" <a HREF=\"javascript:nextSetclick(" + (currentPageSet+1) + ");\"");
254 sbf.append("> Next Set" + "</a>" + " ");
255 }
256
257 if(currentPageSet <= (totalPageSets - 2)) {
259 sbf.append(" <a HREF=\"javascript:nextSetclick(" + totalPageSets + ");\"");
260 sbf.append("> Last Set" + "</a>" + " ");
261 }
262
263 sbf.append("<input type=\"hidden\" name=\"currentpageset\" value=\"" + currentPageSet + "\"" + "/>");
265
266 if(getRetrvPerm() != null && getRetrvPerm().equals("yes")) {
268 req.setAttribute("displayPermList", setPermissionToObjects(displayList));
269 }
270
271 setHtmlOP(sbf.toString());
272 return SKIP_BODY;
273 }
274
275
279 public int doEndTag() {
280 if(getHtmlOP()==null || getHtmlOP().trim().length()==0)
281 setHtmlOP(" ");
282 pageContext.setAttribute("pageLinks", htmlOP);
283 return EVAL_PAGE;
284 }
285
286
291 protected Hashtable setPermissionToObjects(List displayList) {
292
293 if(displayList == null || displayList.size() == 0) {
294 return null;
295 }
296
297 try {
298 HttpServletRequest req = (HttpServletRequest ) pageContext.getRequest();
299 ServletContext servletContext = pageContext.getServletContext();
300 WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);
301 RepositoryService repository = (RepositoryService) wac.getBean("repositoryService");
302 ObjectPermissionService objPermService = (ObjectPermissionService)wac.getBean("objectPermissionService");
303
304 ExecutionContext context = new ExecutionContextImpl();
305 Hashtable objPermList = new Hashtable();
306 String objectIdentifier = req.getParameter("resource");
307 Object targetObject = null;
308 if(objectIdentifier != null && objectIdentifier.trim().length() != 0) {
309 targetObject = repository.getResource(context, objectIdentifier);
310
311 if (targetObject == null) {
312 targetObject = repository.getFolder(context, objectIdentifier);
313 }
314 }
315
316 if (targetObject == null) {
317 log.warn("PaginationTag.setPermissionToObjects: *** targetObject resource is NULL *** ");
318 return objPermList;
319 } else {
320 log.debug("PaginationTag.setPermissionToObjects: targetObject - " + targetObject);
321 }
322
323 ListIterator iterator = displayList.listIterator();
324
325 while (iterator.hasNext()) {
326 Object recpObject = iterator.next();
327
328 String objPermKey = null;
329
330 if (recpObject instanceof User) {
331 objPermKey = ((User) recpObject).getUsername();
332 } else if (recpObject instanceof Role) {
333 objPermKey = ((Role) recpObject).getRoleName();
334 } else {
335 log.warn("PaginationTag.setPermissionToObjects: recipient object ignored " + recpObject);
336 }
337
338 if (objPermKey != null) {
339 Integer permissionToDisplay = new Integer (-1);
340
341 List lstPermns = objPermService.getObjectPermissionsForObjectAndRecipient(context, targetObject, recpObject);
342 if (lstPermns != null && lstPermns.size() > 0) {
343 ObjectPermission objPermission = (ObjectPermission) lstPermns.get(0);
344
345
347 if (objPermission != null && objPermission.getPermissionRecipient() != null) {
348 permissionToDisplay = new Integer (objPermission.getPermissionMask());
349 }
350 }
351 objPermList.put(objPermKey, permissionToDisplay.toString());
352 log.debug("PaginationTag.setPermissionToObjects: object:" + recpObject + ", " + objPermKey + " - permission: " + permissionToDisplay);
353 }
354 }
355 return objPermList;
356 } catch (Exception _ex) {
357 _ex.printStackTrace();
358 }
359 return null;
360 }
361
362
368 private int getFirstLastSetDisplay(int objSize, int resultsPerPage) {
369 int tot_Page_Sets = objSize/(JasperServerConst.PAGE_SET_COUNT * resultsPerPage);
370 if(objSize%(JasperServerConst.PAGE_SET_COUNT * resultsPerPage) != 0)
371 tot_Page_Sets += 1;
372 return tot_Page_Sets;
373 }
374
375 }
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