source: trunk/gsdl3/src/java/org/greenstone/gsdl3/service/MapRetrieve.java@ 13576

Last change on this file since 13576 was 13270, checked in by shaoqun, 17 years ago

replace Category class which is deprecated with Logger class
  • Property svn:keywords set to Author Date Id Revision
File size: 35.4 KB
Line 
1package org.greenstone.gsdl3.service;
2
3// Greenstone classes
4import org.greenstone.gsdl3.util.*;
5
6// XML classes
7import org.w3c.dom.Document;
8import org.w3c.dom.Element;
9import org.w3c.dom.NodeList;
10
11// General Java classes
12import java.io.File;
13import java.io.*;
14import java.util.StringTokenizer;
15import java.util.Vector;
16import java.util.Set;
17import java.util.Iterator;
18import java.lang.reflect.Array;
19import java.util.Arrays;
20import java.util.ArrayList;
21import java.util.LinkedList;
22import javax.swing.tree.DefaultMutableTreeNode;
23
24import org.apache.log4j.*;
25
26public class MapRetrieve
27 extends ServiceRack {
28
29 static Logger logger = Logger.getLogger(org.greenstone.gsdl3.service.MapRetrieve.class.getName());
30
31 // the services on offer
32 protected static final String DOCUMENT_STRUCTURE_RETRIEVE_SERVICE = "DocumentStructureRetrieve";
33 protected static final String DOCUMENT_METADATA_RETRIEVE_SERVICE = "DocumentMetadataRetrieve";
34 protected static final String DOCUMENT_CONTENT_RETRIEVE_SERVICE = "DocumentContentRetrieve";
35
36 protected static final int DOCUMENT=1;
37
38 protected ArrayList index_name_list = null;
39 protected ArrayList index_display_list = null;
40 protected String files_home_dir = null;
41 protected String temp_files_dir = null;
42 //protected String temp_image_file = null;
43 //protected String temp_image_file2 = null;
44 protected final String jpg_ext = ".jpg";
45 protected String http_image_dir = null;
46 protected String http_temp_image_dir = null;
47 private LinkedList namesInList = new LinkedList();
48
49 private DefaultMutableTreeNode tree;
50
51 /** constructor */
52 public MapRetrieve() {}
53
54
55 /** configure this service */
56 public boolean configure(Element info, Element extra_info)
57 {
58 if (!super.configure(info, extra_info)){
59 return false;
60 }
61
62 logger.info("Configuring MapRetrieve...");
63 this.config_info = info;
64
65 // set up short_service_info_ - for now just has name and type
66 Element dmr_service = doc.createElement(GSXML.SERVICE_ELEM);
67 dmr_service.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_RETRIEVE);
68 dmr_service.setAttribute(GSXML.NAME_ATT, DOCUMENT_METADATA_RETRIEVE_SERVICE);
69 short_service_info.appendChild(dmr_service);
70
71 Element dcr_service = doc.createElement(GSXML.SERVICE_ELEM);
72 dcr_service.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_RETRIEVE);
73 dcr_service.setAttribute(GSXML.NAME_ATT, DOCUMENT_CONTENT_RETRIEVE_SERVICE);
74 short_service_info.appendChild(dcr_service);
75
76 Element dsr_service = doc.createElement(GSXML.SERVICE_ELEM);
77 dsr_service.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_RETRIEVE);
78 dsr_service.setAttribute(GSXML.NAME_ATT, DOCUMENT_STRUCTURE_RETRIEVE_SERVICE);
79 short_service_info.appendChild(dsr_service);
80
81 // set the files_home variable for this collection
82 this.files_home_dir = GSFile.collectionIndexDir(this.site_home, this.cluster_name)+ File.separator+"assoc"+File.separator;
83 this.temp_files_dir = GSFile.collectionBaseDir(this.site_home, this.cluster_name) + File.separator + "temp"+File.separator;
84
85 //this.files_home_dir + "maps" + File.separator + "temp" + File.separator;
86 //this.temp_image_file = this.temp_files_dir+"temp_";
87 //this.temp_image_file2 = this.temp_files_dir+"temp2_";
88
89
90 this.http_image_dir = this.site_http_address + "/collect/"+this.cluster_name+"/index/assoc/maps/";
91 this.http_temp_image_dir = this.site_http_address + "/collect/"+this.cluster_name+"/temp/";
92
93 this.index_name_list = new ArrayList();
94 this.index_display_list = new ArrayList();
95 Element index_list = (Element)GSXML.getChildByTagName(this.config_info, GSXML.INDEX_ELEM+GSXML.LIST_MODIFIER);
96 Element display_index_list = (Element)GSXML.getChildByTagName(extra_info, "search");
97 if (index_list != null && display_index_list != null) {
98 NodeList indexes = index_list.getElementsByTagName(GSXML.INDEX_ELEM);
99 for (int i=0; i<indexes.getLength(); i++) {
100 String name = ((Element)indexes.item(i)).getAttribute(GSXML.NAME_ATT);
101 // add the index name
102 this.index_name_list.add(name);
103 // now look for the display name
104 Element this_index = GSXML.getNamedElement(display_index_list, "index", "name", name);
105 if (this_index != null) {
106 Element disp = GSXML.getNamedElement(this_index, "displayItem", "name", "name");
107 if (disp != null) {
108 String display = GSXML.getNodeText(disp);
109 if (!display.equals("")) {
110 this.index_display_list.add(display);
111 continue;
112 }
113
114 }
115 }
116 // add the id as default text
117 this.index_display_list.add(name);
118
119 }
120 }
121
122 // look for document display format
123 String path = GSPath.appendLink(GSXML.DISPLAY_ELEM, GSXML.FORMAT_ELEM);
124 Element display_format = (Element)GSXML.getNodeByPath(extra_info, path);
125 if (display_format != null) {
126 this.format_info_map.put(DOCUMENT_CONTENT_RETRIEVE_SERVICE, this.doc.importNode(display_format, true));
127 // shoudl we make a copy?
128 }
129
130 // load the 2-dimensional tree for searching
131 try{
132 ObjectInputStream objectin = new ObjectInputStream(new FileInputStream(this.files_home_dir+"nametree.dat"));
133 tree = (DefaultMutableTreeNode)objectin.readObject();
134 objectin.close();
135 }catch(IOException ioe){
136 ioe.printStackTrace();
137 }catch(ClassNotFoundException cnfe){
138 cnfe.printStackTrace();
139 }
140
141
142 return true;
143 }
144
145 /** */
146 protected Element getServiceDescription(String service, String lang, String subset)
147 {
148 if (service.equals(DOCUMENT_STRUCTURE_RETRIEVE_SERVICE)) {
149
150 Element tq_service = doc.createElement(GSXML.SERVICE_ELEM);
151 tq_service.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_QUERY);
152 tq_service.setAttribute(GSXML.NAME_ATT, DOCUMENT_STRUCTURE_RETRIEVE_SERVICE);
153 return tq_service;
154 }
155 else if (service.equals(DOCUMENT_METADATA_RETRIEVE_SERVICE)) {
156
157 Element tq_service = doc.createElement(GSXML.SERVICE_ELEM);
158 tq_service.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_QUERY);
159 tq_service.setAttribute(GSXML.NAME_ATT, DOCUMENT_METADATA_RETRIEVE_SERVICE);
160 return tq_service;
161 }
162 else if (service.equals(DOCUMENT_CONTENT_RETRIEVE_SERVICE)) {
163
164 Element tq_service = doc.createElement(GSXML.SERVICE_ELEM);
165 tq_service.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_QUERY);
166 tq_service.setAttribute(GSXML.NAME_ATT, DOCUMENT_CONTENT_RETRIEVE_SERVICE);
167 return tq_service;
168 }
169
170 return null;
171
172 }
173
174 /** Retrieve the structure of a document */
175 protected Element processDocumentStructureRetrieve(Element request)
176 {
177 // Create a new (empty) result message
178 Element result = doc.createElement(GSXML.RESPONSE_ELEM);
179 return result;
180 }
181
182 protected Element processDocumentMetadataRetrieve(Element request) {
183 // Create a new (empty) result message
184 try{
185 Element result = this.doc.createElement(GSXML.RESPONSE_ELEM);
186
187 String uid = request.getAttribute(GSXML.USER_ID_ATT);
188 if (uid.equals("")) {
189 logger.info("in metadata retrieve, uid = ''\n"+converter.getPrettyString(request));
190 }
191 result.setAttribute(GSXML.FROM_ATT, DOCUMENT_METADATA_RETRIEVE_SERVICE);
192 result.setAttribute(GSXML.TYPE_ATT, GSXML.REQUEST_TYPE_PROCESS);
193
194 // Get the parameters of the request
195 Element param_list = (Element) GSXML.getChildByTagName(request, GSXML.PARAM_ELEM+GSXML.LIST_MODIFIER);
196 if (param_list == null) {
197 logger.error("missing paramList.\n");
198 return result; // Return the empty result
199 }
200
201 // The metadata information required
202 Vector metadata_list = new Vector();
203 boolean all_metadata = false;
204 // Process the request parameters
205 Element param = (Element) param_list.getFirstChild();
206
207 while (param != null) {
208 // Identify the metadata information desired
209 if (param.getAttribute(GSXML.NAME_ATT).equals("metadata")) {
210 String metadata = GSXML.getValue(param);
211 if (metadata.equals("all")) {
212 all_metadata = true;
213 break;
214 }
215 metadata_list.add(metadata);
216 }
217 param = (Element) param.getNextSibling();
218 }
219
220 Element node_list = this.doc.createElement(GSXML.DOC_NODE_ELEM+GSXML.LIST_MODIFIER);
221 result.appendChild(node_list);
222
223 // Get the documents
224 Element request_node_list = (Element) GSXML.getChildByTagName(request, GSXML.DOC_NODE_ELEM+GSXML.LIST_MODIFIER);
225 if (request_node_list == null) {
226 logger.error(" DocumentMetadataRetrieve request had no "+GSXML.DOC_NODE_ELEM+GSXML.LIST_MODIFIER);
227 return result;
228 }
229
230 NodeList request_nodes = request_node_list.getChildNodes();
231
232 try{
233 //used just to ensure outfile is initialised
234 BufferedWriter outfile = new BufferedWriter(new FileWriter(this.temp_files_dir+"emptynothingness"));
235
236 for (int i = 0; i < request_nodes.getLength(); i++) {
237 Element request_node = (Element) request_nodes.item(i);
238 String node_id = request_node.getAttribute(GSXML.NODE_ID_ATT);
239 String place_data = "";
240 String year = "";
241 String coOrdinates = "";
242 String thumb = "";
243 String link = "";
244 int mapFreq = 0;
245 LinkedList place_data_list = new LinkedList();
246 LinkedList coOrdinates_list = new LinkedList();
247
248 //if this is a first displaying of the map
249 if(node_id.indexOf("```") != -1 && node_id.indexOf("imageChooser") == -1){
250 //get the number of query terms on this map
251 mapFreq = Integer.parseInt(node_id.substring(node_id.lastIndexOf('`',node_id.indexOf("```")-1)+1,node_id.indexOf("```")));
252 //get the place names on this map
253 place_data = node_id.substring(node_id.indexOf("```")+3,node_id.length());
254 //get the map metadata
255 node_id = node_id.substring(0,node_id.indexOf('`',node_id.indexOf("```")));
256
257 try{
258 // loop for each query term on the map
259 for(int r=0; r<mapFreq; r++){
260 // get title, type, location, and the string for creating the hyperlink for this query term
261 String title = place_data.substring(0,place_data.indexOf('`'));
262 String type = place_data.substring(place_data.indexOf('`')+1,place_data.indexOf('`',place_data.indexOf('`')+1));
263 String location = place_data.substring(place_data.indexOf('`',place_data.indexOf('`')+1)+1, place_data.indexOf('`',place_data.indexOf('`',place_data.indexOf('`')+1)+1));
264 if(place_data.indexOf("```") != -1)
265 link=place_data.substring(0,place_data.indexOf("```"));
266 else
267 link=place_data;
268 // resolve the type and location
269 type = getType(type);
270 location = getLocation(location);
271 // remove this query term from the string
272 if(place_data.indexOf("```") != -1)
273 place_data = place_data.substring(place_data.indexOf("```")+3,place_data.length());
274
275 //add the co-ordinates of this query term to the co-ordinates list
276 coOrdinates_list.add("`"+link.substring(link.lastIndexOf('`')+1,link.length())+"`"+link.substring(link.lastIndexOf('`',link.lastIndexOf('`')-1)+2,link.lastIndexOf('`')));
277
278 // add the title, type and location to the places list
279 place_data_list.add(title + ", " + type + ", " + location + ";");
280 }
281 }catch(StringIndexOutOfBoundsException sioobe){sioobe.printStackTrace();}
282 }
283
284 // Add the document to the list
285 Element new_node = (Element)this.doc.importNode(request_node, false);
286 node_list.appendChild(new_node);
287
288 // Add the requested metadata information
289 Element node_meta_list = this.doc.createElement(GSXML.METADATA_ELEM+GSXML.LIST_MODIFIER);
290 new_node.appendChild(node_meta_list);
291
292 // create the navigation thumbnails. This doesn't seem to work most of the time ???????
293 for (int m = 0; m < metadata_list.size(); m++) {
294 String metadata = (String) metadata_list.get(m);
295 thumb = "";
296 String value = "";
297 if(node_id.indexOf('.') != -1)
298 thumb = node_id.substring(0,node_id.indexOf('.'));
299 if(node_id.indexOf('`') != -1)
300 value = node_id.substring(node_id.lastIndexOf('`',node_id.lastIndexOf('`')-1)+1,node_id.lastIndexOf('`',node_id.lastIndexOf('`')-1)+5);
301 year = value;
302
303 place_data="";
304 if(place_data_list.size() != 0)
305 for(int q=0; q<mapFreq; q++){
306 link = (String)place_data_list.get(q);
307 if(q!=0){
308 place_data = place_data + "<br>" + link;
309 }
310 else{
311 place_data = link;
312 coOrdinates = "``";
313 }
314 coOrdinates = coOrdinates+(String)coOrdinates_list.get(q);
315 }
316
317 link = "<a href=\"?a=d&c="+this.cluster_name+"&d="+node_id+coOrdinates+"&dt=map\">";
318 thumb = "<img src=\""+this.http_image_dir + thumb + "thumb.jpg\" border=0>";
319 value = "<table><tr><td>"+link+"<p>"+place_data+"<br>"+value+"</a></td><td>"+link+thumb+"</a></td></tr></table>";
320 if(metadata.equals("Title"))
321 if(!(place_data.equals("")) && place_data.indexOf(", , ;")==-1 && node_id.indexOf("```")==-1)
322 GSXML.addMetadata(this.doc, node_meta_list, "Title", value);//metadata, value);
323 else
324 GSXML.addMetadata(this.doc, node_meta_list, metadata, "");
325
326 if(place_data.indexOf(", , ;")==-1){
327 if(i==0)
328 if(!(mapFreq==0)){
329 outfile = new BufferedWriter(new FileWriter(this.temp_files_dir+"links"+uid));
330 outfile.write("<table align=\"center\"><tr>");
331 }
332
333 if(!(mapFreq==0)){
334 if(i%7 == 0)
335 outfile.write("</tr><tr>");
336 outfile.write("<td align=\"center\">"+link+thumb+"</a><br>"+link+year+"</a></td>");
337 }
338
339 if(i == request_nodes.getLength()-1){
340 outfile.write("</tr></table><p>");
341 outfile.flush();
342 outfile.close();
343 }
344 }
345 }
346
347 }
348 }catch(IOException ioe){ioe.printStackTrace();}
349
350 return result;
351 }catch(Exception excep){excep.printStackTrace();}
352 return null;
353
354 }
355
356 protected Element processDocumentContentRetrieve(Element request){
357 // Create a new (empty) result message
358 Element result = doc.createElement(GSXML.RESPONSE_ELEM);
359 result.setAttribute(GSXML.FROM_ATT, DOCUMENT_CONTENT_RETRIEVE_SERVICE);
360 result.setAttribute(GSXML.TYPE_ATT, GSXML.REQUEST_TYPE_PROCESS);
361
362 String uid = request.getAttribute(GSXML.USER_ID_ATT);
363 String temp_image_file = this.temp_files_dir+"temp_"+uid+".jpg";
364 String temp_image_file2 = this.temp_files_dir+"temp_"+uid+"_2.jpg";
365
366 Element query_doc_list = (Element) GSXML.getChildByTagName(request, GSXML.DOC_NODE_ELEM+GSXML.LIST_MODIFIER);
367 if (query_doc_list == null) {
368 logger.error("DocumentContentRetrieve request specified no doc nodes.\n");
369 return result;
370 }
371
372 String legend_file = this.temp_files_dir+"legend_"+uid+".jpg";
373 String blank_file = this.files_home_dir + "blank.jpg";
374 Element doc_list = doc.createElement(GSXML.DOC_NODE_ELEM+GSXML.LIST_MODIFIER);
375 result.appendChild(doc_list);
376
377 // Get the documents
378 String[] doc_ids = GSXML.getAttributeValuesFromList(query_doc_list,
379 GSXML.NODE_ID_ATT);
380
381 for (int i = 0; i < doc_ids.length; i++) {
382 String doc_id = doc_ids[i];
383 // img_num is the name of the map file eg. 072.jpg
384 String img_num = doc_id.substring(0,doc_id.indexOf('.'));
385 // strings for inserting image in html
386 String img_left = "<img border=0 src=\""+this.http_temp_image_dir;
387 String doc_content = "";
388 String co_ordinates = "";
389 String img_size = "";
390 int height = 0;
391 int width = 0;
392 // the number for the legend image if adding locations to the map
393 int leg_num = 0;
394 double ratio = 0;
395
396 // if user has clicked on the map. This does not resolve maps that are not North oriented.
397 if(doc_id.indexOf("imageChooser")==0){
398 try{
399 doc_id = doc_id.substring(doc_id.indexOf('`')+1,doc_id.length());
400 img_num = doc_id.substring(0,doc_id.indexOf('.'));
401
402 // get the map size
403 String get_size[] = {"identify","-size","10000", temp_image_file};
404 Process proc;
405 proc = Runtime.getRuntime().exec(get_size);
406 BufferedReader br = new BufferedReader(new InputStreamReader(proc.getInputStream()));
407 img_size = br.readLine();
408 proc.waitFor();
409 img_size = img_size.substring(img_size.indexOf("JPEG")+5,img_size.indexOf(" ",img_size.indexOf("JPEG")+5));
410 width = Integer.parseInt(img_size.substring(0,img_size.indexOf("x")));
411 height = Integer.parseInt(img_size.substring(img_size.indexOf("x")+1,img_size.length()));
412
413 // scale image size according to the ratio
414 ratio = Double.parseDouble(doc_id.substring(doc_id.lastIndexOf('`',doc_id.indexOf("```")-1)+1,doc_id.indexOf("```")));
415 width = (int)(width*ratio);
416 height = (int)(height*ratio);
417
418 // get the position of the mouse click on the image
419 int xclick = Integer.parseInt(doc_id.substring(doc_id.indexOf("```")+3,doc_id.lastIndexOf('`')));
420 int yclick = Integer.parseInt(doc_id.substring(doc_id.lastIndexOf('`')+1,doc_id.length()));
421 doc_id = doc_id.substring(doc_id.indexOf('`')+1,doc_id.indexOf("```"));
422
423 // convert click position to percentage distance accross and down the image.
424 double xpercent = (xclick*1.0)/width;
425 double ypercent = (yclick*1.0)/height;
426
427 // get the top left and bottom right co-ordinates of the map
428 double ytop = Double.parseDouble(doc_id.substring(0,doc_id.indexOf('`')))*-1;
429 doc_id = doc_id.substring(doc_id.indexOf('`')+1,doc_id.length());
430 double xleft = Double.parseDouble(doc_id.substring(0,doc_id.indexOf('`')));
431 doc_id = doc_id.substring(doc_id.indexOf('`')+1,doc_id.length());
432 double ybot = Double.parseDouble(doc_id.substring(0,doc_id.indexOf('`')))*-1;
433 doc_id = doc_id.substring(doc_id.indexOf('`')+1,doc_id.length());
434 double xright = Double.parseDouble(doc_id.substring(0,doc_id.indexOf('`')));
435 doc_id = doc_id.substring(doc_id.indexOf('`')+1,doc_id.length());
436
437 // calculate the map co-ordinates of the mouse click
438 xpercent = ((xright-xleft)*xpercent)+xleft;
439 ypercent = ((ybot-ytop)*ypercent)+ytop;
440
441 // search the tree for nearby place names
442 namesInList.clear();
443 findName(xpercent, ypercent, 0.1, 0.1, tree, true);
444
445 int namesInArraySize = namesInList.size();
446 String returnNames[]=new String[namesInArraySize];
447
448 //put the names in an array
449 for(int ri=0; namesInList.size()>0; ri++){
450 returnNames[ri]=(String)namesInList.getFirst();
451 returnNames[ri] = returnNames[ri].substring(0,returnNames[ri].indexOf('`'));
452 namesInList.removeFirst();
453 }
454
455 //sort the names
456 Arrays.sort(returnNames);
457 doc_content = "\n<script>\nfunction openIt(loc){\n\topener.location=loc;\n\tself.close();\n}\n</script>";
458 for(int nameIndex=0; nameIndex < namesInArraySize; nameIndex++){
459 String tempName = returnNames[nameIndex];
460 //convert names with spaces for hyperlinks
461 if(returnNames[nameIndex].indexOf(' ') != -1){
462 returnNames[nameIndex] = returnNames[nameIndex].replaceAll(" ","+");
463 returnNames[nameIndex] = "%22"+returnNames[nameIndex]+"%22";
464 }
465 // add the place name to the html
466 doc_content = doc_content+"<a href=\"\" onClick=openIt('?a=q&sa=&rt=r&s=MapQuery&c="+this.cluster_name+"&startPage=1&s1.index=none&s1.maxDocs=10&s1.query="+returnNames[nameIndex]+"')>"+tempName+"</a><br>";
467 }
468
469 }catch(Exception ioexception){ioexception.printStackTrace();}
470 }
471 else{
472
473 try{
474 //file for converting image
475 BufferedWriter bw = new BufferedWriter(new FileWriter(this.temp_files_dir + "add_x_"+uid));;
476 Process proc;
477
478 // if a new search
479 if(doc_id.indexOf("```") != -1){
480 // copy requested map to temp.jpg
481 proc = Runtime.getRuntime().exec("cp "+this.files_home_dir+"maps"+File.separator+img_num+".jpg "+temp_image_file);
482 proc.waitFor();
483 }
484
485 //get the image size
486 String get_size[] = {"identify","-size","10000", temp_image_file};
487 proc = Runtime.getRuntime().exec(get_size);
488 BufferedReader br = new BufferedReader(new InputStreamReader(proc.getInputStream()));
489 img_size = br.readLine();
490 proc.waitFor();
491 img_size = img_size.substring(img_size.indexOf("JPEG")+5,img_size.indexOf(" ",img_size.indexOf("JPEG")+5));
492 if (img_size.indexOf("+")!=-1) {
493 img_size = img_size.substring(0, img_size.indexOf("+"));
494 }
495 width = Integer.parseInt(img_size.substring(0,img_size.indexOf("x")));
496 height = Integer.parseInt(img_size.substring(img_size.indexOf("x")+1,img_size.length()));
497
498 // if a new search
499 if(doc_id.indexOf("```") != -1){
500 co_ordinates = doc_id.substring(doc_id.indexOf("```")+2, doc_id.length());
501 // get the number of places to mark on the map
502 int x_number = Integer.parseInt(doc_id.substring(doc_id.lastIndexOf('`',doc_id.indexOf("```")-1)+1,doc_id.indexOf("```")));
503
504 //write the convert command
505 bw.write("convert -font helvetica -fill red -pointsize 48 ");
506
507 for(int xi=0; xi<x_number; xi++){
508
509 // get the co-ordinates of the place name
510 double xco = Double.parseDouble(co_ordinates.substring(co_ordinates.lastIndexOf('`',co_ordinates.lastIndexOf('`')-1)+1,co_ordinates.lastIndexOf('`',co_ordinates.lastIndexOf('`')-1)+7));
511 double yco = Double.parseDouble(co_ordinates.substring(co_ordinates.lastIndexOf('`')+1,co_ordinates.length()));
512 if(xi != x_number-1)
513 co_ordinates = co_ordinates.substring(0,co_ordinates.lastIndexOf('`',co_ordinates.lastIndexOf('`')-1));
514
515 int index = 0;
516 index = doc_id.indexOf('`')+2;
517
518 // get the zoom ratio and the top left and bottom right co-ordinates of the map
519 ratio = 0.4;
520 double tly = Double.parseDouble(doc_id.substring(index,index+5));
521 index = doc_id.indexOf('`',index)+1;
522 double tlx = Double.parseDouble(doc_id.substring(index,index+6));
523 index = doc_id.indexOf('`',index)+2;
524 double bry = Double.parseDouble(doc_id.substring(index,index+5));
525 index = doc_id.indexOf('`',index)+1;
526 double brx = Double.parseDouble(doc_id.substring(index,index+6));
527 index = doc_id.indexOf('`',index)+1;
528 double orient = Double.parseDouble(doc_id.substring(index,doc_id.indexOf('`',index)));
529
530 // find the centre of the map
531 double xcent = ((brx-tlx)/2)+tlx;
532 double ycent = ((bry-tly)/2)+tly;
533
534 // get the orientation of the map
535 orient = Math.toRadians(orient);
536
537 // rotate the co-ordinates around the centre of the map
538 xco=xco-xcent;
539 yco=yco-ycent;
540 double oldx=xco;
541 xco=xco*Math.cos(orient)-yco*Math.sin(orient);
542 yco=oldx*Math.sin(orient)+yco*Math.cos(orient);
543 xco=xco+xcent;
544 yco=yco+ycent;
545 xco = (xco-tlx)/(brx-tlx);
546 yco = (yco-tly)/(bry-tly);
547
548 // calculate the pixels for placing the mark
549 width = (int)(xco*width)-5;
550 height = (int)(yco*height)-5;
551
552 // write the options for convert
553 bw.write("-draw 'text "+width+","+height+" \"x\"' ");
554 bw.flush();
555
556 // reset the width and height variables for the image
557 width = Integer.parseInt(img_size.substring(0,img_size.indexOf("x")));
558 height = Integer.parseInt(img_size.substring(img_size.indexOf("x")+1,img_size.length()));
559 }
560 doc_id = doc_id.substring(0,doc_id.lastIndexOf('`',doc_id.indexOf("```")-1));
561
562 // write the end of the convert command, then command for zooming image to the right level, then command to copy the blank image over legend.jpg
563 bw.write(temp_image_file+" "+temp_image_file+";convert -scale "+((int)(ratio*width))+"x"+((int)(ratio*height))+" "+temp_image_file+" "+temp_image_file2+";cp "+blank_file +" "+legend_file);
564
565 // reset legend number
566 leg_num = 0;
567 }
568
569 else
570 // if changing zoom level
571 if(doc_id.substring(doc_id.lastIndexOf('`'),doc_id.length()).indexOf('.')!=-1){
572 // get the ratio
573 ratio = Double.parseDouble(doc_id.substring(doc_id.lastIndexOf('`')+1,doc_id.length()));
574 // write the command for scaling image
575 bw.write("convert -scale "+((int)(ratio*width))+"x"+((int)(ratio*height))+" "+temp_image_file+" "+temp_image_file2);
576 doc_id = doc_id.substring(0,doc_id.lastIndexOf('`'));
577 }
578
579 // if adding locations to map
580 else{
581
582 // get the location type to add
583 String restricter= doc_id.substring(doc_id.lastIndexOf('`')+1,doc_id.length());
584 doc_id = doc_id.substring(0,doc_id.lastIndexOf('`'));
585
586 // get the number for the legend image
587 leg_num = Integer.parseInt(doc_id.substring(doc_id.lastIndexOf('`')+1,doc_id.length()));
588 doc_id = doc_id.substring(0,doc_id.lastIndexOf('`'));
589
590 //open file for location type
591 BufferedReader inType = new BufferedReader(new FileReader(this.files_home_dir + "place_types"+File.separator + restricter + ".txt"));
592
593 //check through the file and add any places that are in the bounds of this map.
594
595 // check value. set to true if a place to add is found
596 boolean add_place_type = false;
597
598 int index = 0;
599 index = doc_id.indexOf('`')+2;
600 // get zoom ratio
601 ratio = Double.parseDouble(doc_id.substring(doc_id.lastIndexOf('`')+1,doc_id.length()));
602 // get top left and bottom right co-ordinates of the map
603 double tly = Double.parseDouble(doc_id.substring(index,index+5));
604 index = doc_id.indexOf('`',index)+1;
605 double tlx = Double.parseDouble(doc_id.substring(index,index+6));
606 index = doc_id.indexOf('`',index)+2;
607 double bry = Double.parseDouble(doc_id.substring(index,index+5));
608 index = doc_id.indexOf('`',index)+1;
609 double brx = Double.parseDouble(doc_id.substring(index,index+6));
610 index = doc_id.indexOf('`',index)+1;
611 // get orientation of the map
612 double orient = Double.parseDouble(doc_id.substring(index,doc_id.indexOf('`',index)));
613 // calculate centre of map
614 double xcent = ((brx-tlx)/2)+tlx;
615 double ycent = ((bry-tly)/2)+tly;
616 orient = Math.toRadians(orient);
617
618 String type_point = "";
619 double xco = 0.0;
620 double yco = 0.0;
621
622 // read the file
623 while(inType.ready()){
624 //read a line
625 type_point = inType.readLine();
626
627 // get the co-ordinates of the point
628 xco = Double.parseDouble(type_point.substring(type_point.lastIndexOf('`')+1,type_point.length()));
629 yco = Double.parseDouble(type_point.substring(type_point.lastIndexOf('`',type_point.lastIndexOf('`')-1)+2,type_point.lastIndexOf('`')));
630
631 // if it is within the co-ordinates of the map
632 if(xco >= tlx && xco < brx && yco >= tly && yco < bry){
633 // rotate the point around the centre according to map orientation
634 xco=xco-xcent;
635 yco=yco-ycent;
636 double oldx=xco;
637 xco=xco*Math.cos(orient)-yco*Math.sin(orient);
638 yco=oldx*Math.sin(orient)+yco*Math.cos(orient);
639 xco=xco+xcent;
640 yco=yco+ycent;
641 // get the pixels for where to place the mark
642 xco = (xco-tlx)/(brx-tlx);
643 yco = (yco-tly)/(bry-tly);
644 width = (int)(xco*width)-5;
645 height = (int)(yco*height)-5;
646
647 //if this is the first point to be added
648 if(!add_place_type){
649 // write the initial convert command
650 bw.write("convert -font helvetica -fill red -pointsize 36 ");
651 // toggle check value
652 add_place_type = true;
653 }
654
655 // write the options for the convert command
656 bw.write("-draw 'text "+width+","+height+" \""+leg_num+"\"' ");
657 bw.flush();
658
659 // reset width and height variables for the image
660 width = Integer.parseInt(img_size.substring(0,img_size.indexOf("x")));
661 height = Integer.parseInt(img_size.substring(img_size.indexOf("x")+1,img_size.length()));
662 }
663 }
664
665 //if there are places to mark on the map
666 if(add_place_type){
667 // finish the convert command and write command for scaling image
668 bw.write(temp_image_file+" "+temp_image_file+";convert -scale "+((int)(ratio*width))+"x"+((int)(ratio*height))+" "+temp_image_file+" "+temp_image_file2);
669
670 // open file for converting the legend command
671 BufferedWriter buf = new BufferedWriter(new FileWriter(this.temp_files_dir+"add_l_"+uid));
672 if(leg_num == 1)
673 buf.write("cp "+blank_file +" "+legend_file+";");
674 // write the command for adding to the legend
675 buf.write("convert -font helvetica -fill red -pointsize 12 -draw 'text 15,"+(leg_num*15+20)+" \""+leg_num+" "+getType(restricter)+"\"' "+legend_file+" "+legend_file);
676 buf.flush();
677 buf.close();
678 // execute the command for the legend image
679 proc = Runtime.getRuntime().exec("sh "+this.temp_files_dir+"add_l_"+uid);
680 proc.waitFor();
681 }
682 inType.close();
683 }
684 bw.flush();
685 bw.close();
686
687 // execute the convert commands etc.
688 proc = Runtime.getRuntime().exec("sh "+this.temp_files_dir+"add_x_"+uid);
689 proc.waitFor();
690
691 }catch(Exception ioe){ioe.printStackTrace();}
692
693 //write the html for the document
694
695 String doc_content_head = "?a=d&c="+this.cluster_name+"&dt=map&d=";
696 doc_content = "<td valign=\"top\"><script>document.write('"+img_left+"legend_"+uid+".jpg"+"?'+new Date().getTime())</script>\"></td>";
697 doc_content = doc_content+"<td><script>document.write('"+img_left+"temp_"+uid+"_2.jpg?'+new Date().getTime())</script>\" onclick=\"imgClickHandler(event, this, '"+img_num+"')\"></td>";
698
699 // replace _httpimg_ with the correct address
700 doc_content = "<table><tr>"+doc_content+"</tr></table>";
701
702 String javascript = getJavascript(ratio, doc_id, leg_num);
703
704 doc_content = "<center>You are currently viewing the map at "+(int)(ratio*100)+"%<br>Select a radio button for a new zoom level.</center>"+javascript+doc_content;
705 doc_content = doc_content.replaceAll("zoomhead", doc_content_head);
706 doc_content = doc_content.replaceAll("placeChooserImage", doc_content_head+"imageChooser`"+doc_id+"`"+ratio);
707
708 // read the file for the navigation thumbnails
709 try{
710 BufferedReader infile = new BufferedReader(new FileReader(this.temp_files_dir+"links"+uid));
711 doc_content = doc_content + infile.readLine();
712 infile.close();
713 }catch(Exception ioexc){ioexc.printStackTrace();}
714 }
715
716 // put the html in a text node
717 Element text_doc = doc.createElement(GSXML.DOC_NODE_ELEM);
718 text_doc.setAttribute(GSXML.NODE_ID_ATT, doc_id);
719 GSXML.addDocText(doc, text_doc, doc_content);
720 doc_list.appendChild(text_doc);
721
722 }
723 return result;
724 }
725
726 // resolves location codes for places from LINZ database
727 private String getLocation(String location){
728 String read;
729 try{
730 BufferedReader in = new BufferedReader(new FileReader(this.files_home_dir+"files"+File.separator+"landdist.txt"));
731 in.readLine();
732 while(in.ready()){
733 read = in.readLine();
734 if(read.substring(0,2).equals(location)){
735 in.close();
736 return read.substring(3, read.length());
737 }
738 }
739 }catch(Exception e){}
740 return "";
741 }
742
743 // resolves type codes for the LINZ database
744 private String getType(String type){
745 String read;
746 try{
747 BufferedReader in = new BufferedReader(new FileReader(this.files_home_dir+"files"+File.separator+"pointdes.txt"));
748 in.readLine();
749 while(in.ready()){
750 read = in.readLine();
751 if(read.substring(0,read.indexOf('`')).toLowerCase().equals(type.toLowerCase())){
752 in.close();
753 return read.substring(read.indexOf('`')+1, read.indexOf(':'));
754 }
755 }
756 }catch(Exception e){}
757 return "";
758 }
759
760 //recursive pre-order traversal of the 2-dimensional tree
761 // x & y are co-ordinates of mouse click, xoff & yoff are the distance in degrees away from x & y to search,
762 // d is the current node of the tree, xcomp controls whether searching is by x co-ordinate or y co-ordinate.
763 private void findName(double x, double y, double xoff, double yoff, DefaultMutableTreeNode d, boolean xcomp){
764 //if a leaf node return. All leaf nodes are empty
765 if(d.isLeaf())
766 return;
767 //get coordinates of the current node
768 double xco = Double.parseDouble(((String)d.getUserObject()).substring(((String)d.getUserObject()).length()-6,((String)d.getUserObject()).length()));
769 double yco = Double.parseDouble(((String)d.getUserObject()).substring(((String)d.getUserObject()).length()-12,((String)d.getUserObject()).length()-7));
770 //if in range
771 if((x-xoff)<xco && (x+xoff)>xco && (y-yoff)<yco && (y+yoff)>yco){
772 //add to list
773 namesInList.addFirst((String)d.getUserObject());
774 }
775 //if comparing the x axis
776 if(xcomp){
777 //if need to search left subtree
778 if((x-xoff)<xco)
779 findName(x,y,xoff,yoff,(DefaultMutableTreeNode)d.getChildAt(0),!xcomp);
780 //if need to search right subtree
781 if((x+xoff)>xco)
782 findName(x,y,xoff,yoff,(DefaultMutableTreeNode)d.getChildAt(1),!xcomp);
783 }
784 else{
785 //if need to search left subtree
786 if((y-yoff)<yco)
787 findName(x,y,xoff,yoff,(DefaultMutableTreeNode)d.getChildAt(0),!xcomp);
788 //if need to search right subtree
789 if((y+yoff)>yco)
790 findName(x,y,xoff,yoff,(DefaultMutableTreeNode)d.getChildAt(1),!xcomp);
791 }
792 }
793
794 // a whole lot of stuff for the html that is hidden at the bottom here because it clutters more than I already have further up!
795 private String getJavascript(double ratio, String doc_id, int leg_num)
796 {
797 String javascript = "\n<script>\nfunction imgClickHandler (evt, img, num) {\n\tif (window.event){\n\t\tvar chooserString = 'placeChooserImage' + '```' + window.event.offsetX + '`' + window.event.offsetY\n\t\tmywindow = window.open(chooserString,'Choose','width=600, height=500, scrollbars=yes, resizable=yes, toolbar=no, location=no, status=yes, menubar=no');\n\t\t//alert(window.event.offsetX + ':' + window.event.offsetY + ':' + num);\n\t}\n\telse if (evt.target) {\n\t\tvar coords = {x: 0, y: 0 };\n\t\tvar el = evt.target;\n\t\tdo {\n\t\t\tcoords.x += el.offsetLeft;\n\t\t\tcoords.y += el.offsetTop;\n\t\t}\n\t\twhile ((el = el.offsetParent));\n\t\tvar offsetX = evt.clientX - coords.x;\n\t\tvar offsetY = evt.clientY - coords.y;\n\t\talert(offsetX + ':' + offsetY + ':' + num);\n\t}\n}\nfunction leapTo (link)\n{\n\tvar new_url=link;\n\tif ( (new_url != \"\") && (new_url != null) ) \n\t\twindow.location=new_url;\n\telse \n\t\talert(\"You must make a selection.\");\n}\nfunction jumpTo (front,link,back)\n{\n\tvar new_url=front+link+back;\n\tif ( (new_url != \"\") && (new_url != null) ) \n\t\twindow.location=new_url;\n\telse \n\t\talert(\"You must make a selection.\");\n}// Deactivate Cloaking -->\n</script>";
798
799 String radioButtons = "\n<center><FORM>";
800 if(ratio != 0.4)
801 radioButtons = radioButtons + "\n\t<INPUT TYPE=\"radio\" NAME=\"buttons1\" onClick=\"leapTo('zoomhead"+doc_id+"`0.4')\">40%";
802 if(ratio != 0.5)
803 radioButtons = radioButtons + "\n\t<INPUT TYPE=\"radio\" NAME=\"buttons1\" onClick=\"leapTo('zoomhead"+doc_id+"`0.5')\">50%";
804 if(ratio != 0.6)
805 radioButtons = radioButtons + "\n\t<INPUT TYPE=\"radio\" NAME=\"buttons1\" onClick=\"leapTo('zoomhead"+doc_id+"`0.6')\">60%";
806 if(ratio != 0.7)
807 radioButtons = radioButtons + "\n\t<INPUT TYPE=\"radio\" NAME=\"buttons1\" onClick=\"leapTo('zoomhead"+doc_id+"`0.7')\">70%";
808 if(ratio != 0.8)
809 radioButtons = radioButtons + "\n\t<INPUT TYPE=\"radio\" NAME=\"buttons1\" onClick=\"leapTo('zoomhead"+doc_id+"`0.8')\">80%";
810 if(ratio != 0.9)
811 radioButtons = radioButtons + "\n\t<INPUT TYPE=\"radio\" NAME=\"buttons1\" onClick=\"leapTo('zoomhead"+doc_id+"`0.9')\">90%";
812 if(ratio != 1.0)
813 radioButtons = radioButtons + "\n\t<INPUT TYPE=\"radio\" NAME=\"buttons1\" onClick=\"leapTo('zoomhead"+doc_id+"`1.0')\">100%";
814 radioButtons = radioButtons + "\n</FORM></center>";
815
816 leg_num = leg_num+1;
817
818 String doc_link = "?a=d&c="+this.cluster_name+"&dt=map&d="+doc_id+"`"+ratio+"`"+leg_num+"`";
819
820 StringBuffer dropDownBox = new StringBuffer();
821
822 dropDownBox.append("Add Locations Of Type: <form name=\"myForm\"><select name=\"s1index\" onChange=\"jumpTo('");
823 dropDownBox.append(doc_link);
824 dropDownBox.append("',document.myForm.s1index.options[document.myForm.s1index.selectedIndex].value,'')\">\n");
825
826 for (int i=0; i<this.index_name_list.size(); i++) {
827 String name = (String)this.index_name_list.get(i);
828 dropDownBox.append("<option value=\"");
829 dropDownBox.append(name);
830 dropDownBox.append("\">");
831 String display = (String)this.index_display_list.get(i);
832 dropDownBox.append(display);
833 dropDownBox.append("\n");
834 }
835 // for each option, Malcolm had onClick=\"leapTo('"+doc_link+name+"')\" - dont seem to need this
836 dropDownBox.append("</select></form>\n");
837
838 return javascript + radioButtons + dropDownBox;
839 }
840}
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