1 | /**
|
---|
2 | *#########################################################################
|
---|
3 | *
|
---|
4 | * A component of the Gatherer application, part of the Greenstone digital
|
---|
5 | * library suite from the New Zealand Digital Library Project at the
|
---|
6 | * University of Waikato, New Zealand.
|
---|
7 | *
|
---|
8 | * <BR><BR>
|
---|
9 | *
|
---|
10 | * Author: John Thompson, Greenstone Digital Library, University of Waikato
|
---|
11 | *
|
---|
12 | * <BR><BR>
|
---|
13 | *
|
---|
14 | * Copyright (C) 1999 New Zealand Digital Library Project
|
---|
15 | *
|
---|
16 | * <BR><BR>
|
---|
17 | *
|
---|
18 | * This program is free software; you can redistribute it and/or modify
|
---|
19 | * it under the terms of the GNU General Public License as published by
|
---|
20 | * the Free Software Foundation; either version 2 of the License, or
|
---|
21 | * (at your option) any later version.
|
---|
22 | *
|
---|
23 | * <BR><BR>
|
---|
24 | *
|
---|
25 | * This program is distributed in the hope that it will be useful,
|
---|
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
28 | * GNU General Public License for more details.
|
---|
29 | *
|
---|
30 | * <BR><BR>
|
---|
31 | *
|
---|
32 | * You should have received a copy of the GNU General Public License
|
---|
33 | * along with this program; if not, write to the Free Software
|
---|
34 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
35 | *########################################################################
|
---|
36 | */
|
---|
37 | package org.greenstone.gatherer.collection;
|
---|
38 |
|
---|
39 | import java.io.*;
|
---|
40 | import java.util.*;
|
---|
41 | import javax.swing.*;
|
---|
42 | import javax.swing.tree.*;
|
---|
43 | import org.greenstone.gatherer.Gatherer;
|
---|
44 | import org.greenstone.gatherer.cdm.CollectionDesignManager;
|
---|
45 | import org.greenstone.gatherer.collection.BuildOptions;
|
---|
46 | import org.greenstone.gatherer.collection.CollectionManager;
|
---|
47 | import org.greenstone.gatherer.file.FileNode;
|
---|
48 | import org.greenstone.gatherer.msm.ElementWrapper;
|
---|
49 | import org.greenstone.gatherer.msm.GDMManager;
|
---|
50 | import org.greenstone.gatherer.msm.MetadataSetManager;
|
---|
51 | import org.greenstone.gatherer.msm.MSMUtils;
|
---|
52 | import org.greenstone.gatherer.util.StaticStrings;
|
---|
53 | import org.greenstone.gatherer.util.Utility;
|
---|
54 | import org.w3c.dom.*;
|
---|
55 |
|
---|
56 | /** Collection provides a common collection point for all the information about a certain collection build session. It keeps a record of several other managers that actually handle the content of the collection, such as metadata sets and metadata itself.
|
---|
57 | * @author John Thompson, Greenstone Digital Library, University of Waikato
|
---|
58 | * @version 2.3c
|
---|
59 | */
|
---|
60 | public class Collection {
|
---|
61 | /** A reference to the BuildOptions. */
|
---|
62 | public BuildOptions build_options;
|
---|
63 | /** A reference to the Collection Design Manager. */
|
---|
64 | public CollectionDesignManager cdm;
|
---|
65 | /** A reference to the Greenstone Directory Metadata Manager. */
|
---|
66 | public GDMManager gdm;
|
---|
67 | /** A reference to the Metadata Set Manager. */
|
---|
68 | public MetadataSetManager msm;
|
---|
69 | /** <i>true</i> if the currently loaded collection has been saved since the last significant change, <i>false</i> otherwise. */
|
---|
70 | private boolean saved = false;
|
---|
71 | /** The collectio configuration file for this collection. */
|
---|
72 | private CollectionConfiguration collect_cfg;
|
---|
73 | /** The document around which this collection class is based. */
|
---|
74 | private Document document;
|
---|
75 | /** The file the collection is in (the file may not actually exist, such in the case of a legacy collection)! */
|
---|
76 | private File file;
|
---|
77 | /** The name of the argument element. */
|
---|
78 | static final private String ARGUMENT = "Argument";
|
---|
79 | static final private String BASE_COLLECTION = "base_collection";
|
---|
80 | /** The name of the build element. */
|
---|
81 | static final private String BUILD = "Build";
|
---|
82 | /** The name of the build config element. */
|
---|
83 | static final private String BUILD_CONFIG = "BuildConfig";
|
---|
84 | /** The name of the collection xml template. */
|
---|
85 | static final private String COLLECTION_XML_TEMPLATE = "xml/template.col";
|
---|
86 | /** The name of the directory mappings element. */
|
---|
87 | static final private String DIRECTORY_MAPPINGS = "DirectoryMappings";
|
---|
88 | /** The name of the file attribute. */
|
---|
89 | static final private String FILE = "file";
|
---|
90 | /** The name of the import element. */
|
---|
91 | static final private String IMPORT = "Import";
|
---|
92 | /** The name of the imported attribute. */
|
---|
93 | static final private String IMPORTED = "imported";
|
---|
94 | /** The name of the mapping element. */
|
---|
95 | static final private String MAPPING = "Mapping";
|
---|
96 | /** The name of the name attribute. */
|
---|
97 | static final private String NAME = "name";
|
---|
98 | /** The name of the true value. */
|
---|
99 | static final private String TRUE = "true";
|
---|
100 | /** Constructor. */
|
---|
101 | public Collection(File collection_xml) {
|
---|
102 | this.file = collection_xml;
|
---|
103 | // Try to load this collections details.
|
---|
104 | document = Utility.parse(collection_xml, false);
|
---|
105 | // If that fails load the default settings for a collection.
|
---|
106 | if(document == null) {
|
---|
107 | document = Utility.parse(COLLECTION_XML_TEMPLATE, true);
|
---|
108 | }
|
---|
109 | // Point the Configuration class at our gatherer config arguments.
|
---|
110 | Gatherer.config.setCollectionConfiguration(document);
|
---|
111 | // We also attempt to parse the collection configuration file.
|
---|
112 | collect_cfg = new CollectionConfiguration(new File(collection_xml.getParentFile(), Utility.CONFIG_DIR));
|
---|
113 | // Finally create all of the child managers that are directly dependant on a collection
|
---|
114 | build_options = new BuildOptions(getBuildValues(), getImportValues());
|
---|
115 | }
|
---|
116 | /** Add a special directory mapping. */
|
---|
117 | public boolean addDirectoryMapping(String name, File file) {
|
---|
118 | boolean result = false;
|
---|
119 | try {
|
---|
120 | Element document_element = document.getDocumentElement();
|
---|
121 | Element directory_mappings_element = (Element) MSMUtils.getNodeFromNamed(document_element, DIRECTORY_MAPPINGS);
|
---|
122 | // Ensure the name isn't already in use.
|
---|
123 | boolean found = false;
|
---|
124 | NodeList mappings = directory_mappings_element.getElementsByTagName(MAPPING);
|
---|
125 | for(int i = 0; !found && i < mappings.getLength(); i++) {
|
---|
126 | Element mapping_element = (Element) mappings.item(i);
|
---|
127 | if(mapping_element.getAttribute(NAME).equalsIgnoreCase(name)) {
|
---|
128 | found = true;
|
---|
129 | }
|
---|
130 | mapping_element = null;
|
---|
131 | }
|
---|
132 | // Otherwise add the mapping.
|
---|
133 | if(!found) {
|
---|
134 | Element mapping_element = document.createElement(MAPPING);
|
---|
135 | mapping_element.setAttribute(NAME, name);
|
---|
136 | mapping_element.setAttribute(FILE, file.toString());
|
---|
137 | directory_mappings_element.appendChild(mapping_element);
|
---|
138 | result = true;
|
---|
139 | mapping_element = null;
|
---|
140 | }
|
---|
141 | mappings = null;
|
---|
142 | directory_mappings_element = null;
|
---|
143 | document_element = null;
|
---|
144 | saved = false;
|
---|
145 | }
|
---|
146 | catch (Exception error) {
|
---|
147 | Gatherer.printStackTrace(error);
|
---|
148 | }
|
---|
149 | return result;
|
---|
150 | }
|
---|
151 |
|
---|
152 | /** Destructor.
|
---|
153 | * @see org.greenstone.gatherer.collection.CollectionModel */
|
---|
154 | public void destroy() {
|
---|
155 | cdm.destroy();
|
---|
156 | gdm.destroy();
|
---|
157 | msm.destroy();
|
---|
158 | Gatherer.config.setCollectionConfiguration(null);
|
---|
159 | cdm = null;
|
---|
160 | document = null;
|
---|
161 | gdm = null;
|
---|
162 | msm = null;
|
---|
163 | }
|
---|
164 |
|
---|
165 | /** Determine the path to the base collection.
|
---|
166 | * @return the path as a String
|
---|
167 | */
|
---|
168 | public String getBaseCollection() {
|
---|
169 | return getString(BASE_COLLECTION);
|
---|
170 | }
|
---|
171 |
|
---|
172 | /** Determine the number of documents and folders in this collection. */
|
---|
173 | public int getCount() {
|
---|
174 | return getCount((TreeNode)Gatherer.c_man.getRecordSet().getRoot(), true, true);
|
---|
175 | }
|
---|
176 |
|
---|
177 | /** Calculates the number of documents in this collection. */
|
---|
178 | public int getDocumentCount() {
|
---|
179 | return getCount((TreeNode)Gatherer.c_man.getRecordSet().getRoot(), false, true);
|
---|
180 | }
|
---|
181 | /** Retrieve the description of this collection.
|
---|
182 | * @return The description as a <strong>String</strong>.
|
---|
183 | */
|
---|
184 | public String getDescription() {
|
---|
185 | return collect_cfg.getDescription();
|
---|
186 | }
|
---|
187 |
|
---|
188 | public String getCollectionType() {
|
---|
189 | return collect_cfg.getBuildType();
|
---|
190 | }
|
---|
191 |
|
---|
192 | public String getSearchTypes() {
|
---|
193 | return collect_cfg.getSearchTypes();
|
---|
194 | }
|
---|
195 | /** Retrieve a specific directory mapping associated with this collection.
|
---|
196 | * @param name The name of the mapping to retrieve as a <strong>String</strong>.
|
---|
197 | * @return The <strong>File</strong> this name maps to, or <i>null</i> if no such mapping.
|
---|
198 | */
|
---|
199 | /* private File getDirectoryMapping(String name) {
|
---|
200 | File result = null;
|
---|
201 | try {
|
---|
202 | Element document_element = document.getDocumentElement();
|
---|
203 | Element directory_mappings_element = (Element) MSMUtils.getNodeFromNamed(document_element, DIRECTORY_MAPPINGS);
|
---|
204 | // Ensure the name isn't already in use.
|
---|
205 | boolean found = false;
|
---|
206 | NodeList mappings = directory_mappings_element.getElementsByTagName(MAPPING);
|
---|
207 | for(int i = 0; !found && i < mappings.getLength(); i++) {
|
---|
208 | Element mapping_element = (Element) mappings.item(i);
|
---|
209 | if(mapping_element.getAttribute(NAME).equalsIgnoreCase(name)) {
|
---|
210 | result = new File(MSMUtils.getValue(mapping_element));
|
---|
211 | found = true;
|
---|
212 | }
|
---|
213 | mapping_element = null;
|
---|
214 | }
|
---|
215 | mappings = null;
|
---|
216 | directory_mappings_element = null;
|
---|
217 | document_element = null;
|
---|
218 | }
|
---|
219 | catch(Exception error) {
|
---|
220 | Gatherer.printStackTrace(error);
|
---|
221 | }
|
---|
222 | return result;
|
---|
223 | } */
|
---|
224 | /** Retrieve the special directory mappings associated with this collection.
|
---|
225 | * @return A <strong>HashMap</strong> containing mappings from names to directories.
|
---|
226 | */
|
---|
227 | public HashMap getDirectoryMappings() {
|
---|
228 | HashMap special_directories = new HashMap();
|
---|
229 | try {
|
---|
230 | Element document_element = document.getDocumentElement();
|
---|
231 | Element directory_mappings_element = (Element) MSMUtils.getNodeFromNamed(document_element, DIRECTORY_MAPPINGS);
|
---|
232 | // Ensure the name isn't already in use.
|
---|
233 | boolean found = false;
|
---|
234 | NodeList mappings = directory_mappings_element.getElementsByTagName(MAPPING);
|
---|
235 | for(int i = 0; !found && i < mappings.getLength(); i++) {
|
---|
236 | Element mapping_element = (Element) mappings.item(i);
|
---|
237 | String name = mapping_element.getAttribute(NAME);
|
---|
238 | File file = new File(mapping_element.getAttribute(FILE));
|
---|
239 | special_directories.put(name, file);
|
---|
240 | file = null;
|
---|
241 | name = null;
|
---|
242 | mapping_element = null;
|
---|
243 | }
|
---|
244 | mappings = null;
|
---|
245 | directory_mappings_element = null;
|
---|
246 | document_element = null;
|
---|
247 | }
|
---|
248 | catch(Exception error) {
|
---|
249 | Gatherer.printStackTrace(error);
|
---|
250 | }
|
---|
251 | return special_directories;
|
---|
252 | }
|
---|
253 | /** Retrieve the authors email for this collection.
|
---|
254 | * @return The email as a <strong>String</strong>.
|
---|
255 | */
|
---|
256 | public String getEmail() {
|
---|
257 | return collect_cfg.getCreator();
|
---|
258 | }
|
---|
259 | /** Counts the number of folders used in the current record set. */
|
---|
260 | /* private int getFolderCount() {
|
---|
261 | return getCount((TreeNode)Gatherer.c_man.getRecordSet().getRoot(), true, false);
|
---|
262 | } */
|
---|
263 | /** Determine if this collection has had an import action run upon it since the last major change.
|
---|
264 | * @return <i>true</i> if an import has occured, <i>false</i> otherwise.
|
---|
265 | */
|
---|
266 | /* private boolean getImported() {
|
---|
267 | return get(IMPORTED);
|
---|
268 | } */
|
---|
269 | /** Retrieve the short name for this collection.
|
---|
270 | * @return The name as a <strong>String</strong>.
|
---|
271 | */
|
---|
272 | public String getName() {
|
---|
273 | return file.getParentFile().getName();
|
---|
274 | }
|
---|
275 | /** Determine if this collection has been saved since the last major change.
|
---|
276 | * @return <i>true</i> if it has been saved recently, <i>false</i> otherwise.
|
---|
277 | */
|
---|
278 | public boolean getSaved() {
|
---|
279 | return saved;
|
---|
280 | }
|
---|
281 | /** Retrieve the title of this collection.
|
---|
282 | * @return The title as a <strong>String</strong>.
|
---|
283 | */
|
---|
284 | public String getTitle() {
|
---|
285 | return collect_cfg.getName();
|
---|
286 | }
|
---|
287 | /** Remove a previously defined special directory mapping.
|
---|
288 | * @param name The name of the mapping to remove as a <strong>String</strong>.
|
---|
289 | * @return The <strong>File</strong> of the mapping removed.
|
---|
290 | */
|
---|
291 | public File removeDirectoryMapping(String name) {
|
---|
292 | File file = null;
|
---|
293 | try {
|
---|
294 | Element document_element = document.getDocumentElement();
|
---|
295 | Element directory_mappings_element = (Element) MSMUtils.getNodeFromNamed(document_element, DIRECTORY_MAPPINGS);
|
---|
296 | // Ensure the name isn't already in use.
|
---|
297 | boolean found = false;
|
---|
298 | NodeList mappings = directory_mappings_element.getElementsByTagName(MAPPING);
|
---|
299 | for(int i = 0; !found && i < mappings.getLength(); i++) {
|
---|
300 | Element mapping_element = (Element) mappings.item(i);
|
---|
301 | if(mapping_element.getAttribute(NAME).equalsIgnoreCase(name)) {
|
---|
302 | file = new File(MSMUtils.getValue(mapping_element));
|
---|
303 | directory_mappings_element.removeChild(mapping_element);
|
---|
304 | found = true;
|
---|
305 | }
|
---|
306 | mapping_element = null;
|
---|
307 | }
|
---|
308 | mappings = null;
|
---|
309 | directory_mappings_element = null;
|
---|
310 | document_element = null;
|
---|
311 | saved = false;
|
---|
312 | }
|
---|
313 | catch(Exception error) {
|
---|
314 | Gatherer.printStackTrace(error);
|
---|
315 | }
|
---|
316 | return file;
|
---|
317 | }
|
---|
318 | /** Save this xml document to the given file. */
|
---|
319 | public void save() {
|
---|
320 | Utility.export(document, file);
|
---|
321 | }
|
---|
322 |
|
---|
323 | public void setBaseCollection(String base_collection) {
|
---|
324 | set(BASE_COLLECTION, base_collection);
|
---|
325 | }
|
---|
326 |
|
---|
327 | /** Set the value of imported to the given value.
|
---|
328 | * @param value The new value for imported, <i>true</i> if the collection has been imported successfully, <i>false</i> otherwise.
|
---|
329 | */
|
---|
330 | public void setImported(boolean value) {
|
---|
331 | set(IMPORTED, value);
|
---|
332 | saved = false;
|
---|
333 | }
|
---|
334 | /** Set the value of saved to the given value.
|
---|
335 | * @param value The new value for saved, <i>true</i> if the collection has been saved recently, <i>false</i> otherwise.
|
---|
336 | */
|
---|
337 | public void setSaved(boolean value) {
|
---|
338 | saved = value;
|
---|
339 | }
|
---|
340 | /** Set the value of title to the given value.
|
---|
341 | * @param title The new <strong>String</strong> title.
|
---|
342 | */
|
---|
343 | public void setTitle(String title) {
|
---|
344 | collect_cfg.setName(title);
|
---|
345 | }
|
---|
346 | /** Method called to return a textual representation of a class, which in this case is the collections title.
|
---|
347 | * @return A <strong>String</strong> containing the collections title.
|
---|
348 | */
|
---|
349 | public String toString() {
|
---|
350 | return collect_cfg.getName();
|
---|
351 | }
|
---|
352 | /** Get the value of a collection argument. */
|
---|
353 | private boolean get(String name) {
|
---|
354 | boolean result = false;
|
---|
355 | try {
|
---|
356 | Element document_element = document.getDocumentElement();
|
---|
357 | NodeList arguments = document_element.getElementsByTagName(ARGUMENT);
|
---|
358 | boolean found = false;
|
---|
359 | for(int i = 0; !found && i < arguments.getLength(); i++) {
|
---|
360 | Element argument_element = (Element) arguments.item(i);
|
---|
361 | if(argument_element.getParentNode() == document_element) {
|
---|
362 | if(argument_element.getAttribute(NAME).equalsIgnoreCase(name)) {
|
---|
363 | String value = MSMUtils.getValue(argument_element);
|
---|
364 | if(value.equalsIgnoreCase(TRUE)) {
|
---|
365 | result = true;
|
---|
366 | }
|
---|
367 | found = true;
|
---|
368 | value = null;
|
---|
369 | }
|
---|
370 | }
|
---|
371 | argument_element = null;
|
---|
372 | }
|
---|
373 | arguments = null;
|
---|
374 | document_element = null;
|
---|
375 | }
|
---|
376 | catch (Exception error) {
|
---|
377 | Gatherer.printStackTrace(error);
|
---|
378 | }
|
---|
379 | return result;
|
---|
380 | }
|
---|
381 |
|
---|
382 | /** Get the value of a collection argument. */
|
---|
383 | private String getString(String name) {
|
---|
384 | String result = "";
|
---|
385 | try {
|
---|
386 | Element document_element = document.getDocumentElement();
|
---|
387 | NodeList arguments = document_element.getElementsByTagName(ARGUMENT);
|
---|
388 | boolean found = false;
|
---|
389 | for(int i = 0; !found && i < arguments.getLength(); i++) {
|
---|
390 | Element argument_element = (Element) arguments.item(i);
|
---|
391 | if(argument_element.getParentNode() == document_element) {
|
---|
392 | if(argument_element.getAttribute(NAME).equalsIgnoreCase(name)) {
|
---|
393 | result = MSMUtils.getValue(argument_element);
|
---|
394 | found = true;
|
---|
395 | }
|
---|
396 | }
|
---|
397 | argument_element = null;
|
---|
398 | }
|
---|
399 | arguments = null;
|
---|
400 | document_element = null;
|
---|
401 | }
|
---|
402 | catch (Exception error) {
|
---|
403 | Gatherer.printStackTrace(error);
|
---|
404 | }
|
---|
405 | return result;
|
---|
406 | }
|
---|
407 |
|
---|
408 | /** Method to retrieve the current build options associated with this Collection. */
|
---|
409 | private Element getBuildValues() {
|
---|
410 | Element build_values_element = null;
|
---|
411 | try {
|
---|
412 | Element document_element = document.getDocumentElement();
|
---|
413 | Element build_config_element = (Element) MSMUtils.getNodeFromNamed(document_element, BUILD_CONFIG);
|
---|
414 | build_values_element = (Element) MSMUtils.getNodeFromNamed(build_config_element, BUILD);
|
---|
415 | build_config_element = null;
|
---|
416 | document_element = null;
|
---|
417 | }
|
---|
418 | catch (Exception error) {
|
---|
419 | Gatherer.printStackTrace(error);
|
---|
420 | }
|
---|
421 | return build_values_element;
|
---|
422 | }
|
---|
423 |
|
---|
424 | /** Count either documents or folders, depending on the state of the given boolean. */
|
---|
425 | private int getCount(TreeNode node, boolean count_folders, boolean count_files) {
|
---|
426 | int count = 0;
|
---|
427 | File file = ((FileNode)node).getFile();
|
---|
428 | if(file.isFile() && count_files) {
|
---|
429 | count++;
|
---|
430 | }
|
---|
431 | else if(file.isDirectory() && count_folders) {
|
---|
432 | count++;
|
---|
433 | }
|
---|
434 | for(int i = 0; i < node.getChildCount(); i++) {
|
---|
435 | count = count + getCount(node.getChildAt(i), count_folders, count_files);
|
---|
436 | }
|
---|
437 | return count;
|
---|
438 | }
|
---|
439 |
|
---|
440 | /** Method to retrieve the current import options associated with this Collection. */
|
---|
441 | public Element getImportValues() {
|
---|
442 | Element import_values_element = null;
|
---|
443 | try {
|
---|
444 | Element document_element = document.getDocumentElement();
|
---|
445 | Element build_config_element = (Element) MSMUtils.getNodeFromNamed(document_element, BUILD_CONFIG);
|
---|
446 | import_values_element = (Element) MSMUtils.getNodeFromNamed(build_config_element, IMPORT);
|
---|
447 | build_config_element = null;
|
---|
448 | document_element = null;
|
---|
449 | }
|
---|
450 | catch (Exception error) {
|
---|
451 | Gatherer.printStackTrace(error);
|
---|
452 | }
|
---|
453 | return import_values_element;
|
---|
454 | }
|
---|
455 |
|
---|
456 | /** Set the value of a collection argument. */
|
---|
457 | private void set(String name, boolean value) {
|
---|
458 | set(name, (value ? StaticStrings.TRUE_STR : StaticStrings.FALSE_STR));
|
---|
459 | }
|
---|
460 |
|
---|
461 | private void set(String name, String value) {
|
---|
462 | try {
|
---|
463 | Element document_element = document.getDocumentElement();
|
---|
464 | NodeList arguments = document_element.getElementsByTagName(ARGUMENT);
|
---|
465 | boolean found = false;
|
---|
466 | for(int i = 0; !found && i < arguments.getLength(); i++) {
|
---|
467 | Element argument_element = (Element) arguments.item(i);
|
---|
468 | if(argument_element.getParentNode() == document_element) {
|
---|
469 | if(argument_element.getAttribute(NAME).equalsIgnoreCase(name)) {
|
---|
470 | // Strip any current value nodes.
|
---|
471 | while(argument_element.hasChildNodes()) {
|
---|
472 | argument_element.removeChild(argument_element.getFirstChild());
|
---|
473 | }
|
---|
474 | // Append new value
|
---|
475 | argument_element.appendChild(document.createTextNode(value));
|
---|
476 | found = true;
|
---|
477 | }
|
---|
478 | }
|
---|
479 | argument_element = null;
|
---|
480 | }
|
---|
481 | // Append it
|
---|
482 | if(!found) {
|
---|
483 | Element argument_element = document.createElement(ARGUMENT);
|
---|
484 | argument_element.setAttribute(NAME, name);
|
---|
485 | argument_element.appendChild(document.createTextNode(value));
|
---|
486 | document_element.appendChild(argument_element);
|
---|
487 | argument_element = null;
|
---|
488 | }
|
---|
489 | arguments = null;
|
---|
490 | document_element = null;
|
---|
491 | }
|
---|
492 | catch (Exception error) {
|
---|
493 | Gatherer.printStackTrace(error);
|
---|
494 | }
|
---|
495 | }
|
---|
496 | }
|
---|