gitorious.org Git - online-glom:gwt-glom.git/blob - src/main/java/org/glom/web/server/ConfiguredDocument.java

1 /*

3 *

4 * This file is part of GWT-Glom.

5 *

6 * GWT-Glom is free software: you can redistribute it and/or modify it

7 * under the terms of the GNU Lesser General Public License as published by the

8 * Free Software Foundation, either version 3 of the License, or (at your

9 * option) any later version.

10 *

11 * GWT-Glom is distributed in the hope that it will be useful, but WITHOUT

12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License

14 * for more details.

15 *

16 * You should have received a copy of the GNU Lesser General Public License

17 * along with GWT-Glom. If not, see <http://www.gnu.org/licenses/>.

18 */

19

20 package org.glom.web.server;

21

22 import java.beans.PropertyVetoException;

23 import java.sql.Connection;

24 import java.sql.SQLException;

25 import java.util.ArrayList;

26

27 import org.glom.libglom.Document;

28 import org.glom.libglom.Field;

29 import org.glom.libglom.FieldFormatting;

30 import org.glom.libglom.FieldVector;

31 import org.glom.libglom.Glom;

32 import org.glom.libglom.LayoutGroupVector;

33 import org.glom.libglom.LayoutItemVector;

34 import org.glom.libglom.LayoutItem_Field;

35 import org.glom.libglom.LayoutItem_Notebook;

36 import org.glom.libglom.LayoutItem_Portal;

37 import org.glom.libglom.NumericFormat;

38 import org.glom.libglom.Relationship;

39 import org.glom.libglom.StringVector;

40 import org.glom.web.server.database.DetailsDBAccess;

41 import org.glom.web.server.database.ListViewDBAccess;

42 import org.glom.web.server.database.RelatedListDBAccess;

43 import org.glom.web.server.database.RelatedListNavigation;

44 import org.glom.web.shared.DataItem;

45 import org.glom.web.shared.DocumentInfo;

46 import org.glom.web.shared.GlomNumericFormat;

47 import org.glom.web.shared.NavigationRecord;

48 import org.glom.web.shared.layout.Formatting;

49 import org.glom.web.shared.layout.LayoutGroup;

50 import org.glom.web.shared.layout.LayoutItem;

51 import org.glom.web.shared.layout.LayoutItemField;

52 import org.glom.web.shared.layout.LayoutItemNotebook;

53 import org.glom.web.shared.layout.LayoutItemPortal;

54

55 import com.mchange.v2.c3p0.ComboPooledDataSource;

56

57 /**

58 * A class to hold configuration information for a given Glom document. This class is used to retrieve layout

59 * information from libglom and data from the underlying PostgreSQL database.

60 *

61 * @author Ben Konrath <ben@bagu.org>

62 *

63 */

64 final class ConfiguredDocument {

65

66 private Document document;

67 private ComboPooledDataSource cpds;

68 private boolean authenticated = false;

69 private String documentID;

70

71 @SuppressWarnings("unused")

72 private ConfiguredDocument() {

73 // disable default constructor

74 }

75

76 ConfiguredDocument(Document document) throws PropertyVetoException {

77

78 // load the jdbc driver

79 cpds = new ComboPooledDataSource();

80

81 // We don't support sqlite or self-hosting yet.

82 if (document.get_hosting_mode() != Document.HostingMode.HOSTING_MODE_POSTGRES_CENTRAL) {

83 Log.fatal("Error configuring the database connection." + " Only central PostgreSQL hosting is supported.");

84 // FIXME: Throw exception?

85 }

86

87 try {

88 cpds.setDriverClass("org.postgresql.Driver");

89 } catch (PropertyVetoException e) {

90 Log.fatal("Error loading the PostgreSQL JDBC driver."

91 + " Is the PostgreSQL JDBC jar available to the servlet?", e);

92 throw e;

93 }

94

95 // setup the JDBC driver for the current glom document

96 cpds.setJdbcUrl("jdbc:postgresql://" + document.get_connection_server() + ":" + document.get_connection_port()

97 + "/" + document.get_connection_database());

98

99 this.document = document;

100 }

101

102 /**

103 * Sets the username and password for the database associated with the Glom document.

104 *

105 * @return true if the username and password works, false otherwise

106 */

107 boolean setUsernameAndPassword(String username, String password) throws SQLException {

108 cpds.setUser(username);

109 cpds.setPassword(password);

110

111 int acquireRetryAttempts = cpds.getAcquireRetryAttempts();

112 cpds.setAcquireRetryAttempts(1);

113 Connection conn = null;

114 try {

115 // FIXME find a better way to check authentication

116 // it's possible that the connection could be failing for another reason

117 conn = cpds.getConnection();

118 authenticated = true;

119 } catch (SQLException e) {

120 Log.info(Utils.getFileName(document.get_file_uri()), e.getMessage());

121 Log.info(Utils.getFileName(document.get_file_uri()),

122 "Connection Failed. Maybe the username or password is not correct.");

123 authenticated = false;

124 } finally {

125 if (conn != null)

126 conn.close();

127 cpds.setAcquireRetryAttempts(acquireRetryAttempts);

128 }

129 return authenticated;

130 }

131

132 Document getDocument() {

133 return document;

134 }

135

136 ComboPooledDataSource getCpds() {

137 return cpds;

138 }

139

140 boolean isAuthenticated() {

141 return authenticated;

142 }

143

144 String getDocumentID() {

145 return documentID;

146 }

147

148 void setDocumentID(String documentID) {

149 this.documentID = documentID;

150 }

151

152 /**

153 * @return

154 */

155 DocumentInfo getDocumentInfo() {

156 DocumentInfo documentInfo = new DocumentInfo();

157

158 // get arrays of table names and titles, and find the default table index

159 StringVector tablesVec = document.get_table_names();

160

161 int numTables = Utils.safeLongToInt(tablesVec.size());

162 // we don't know how many tables will be hidden so we'll use half of the number of tables for the default size

163 // of the ArrayList

164 ArrayList<String> tableNames = new ArrayList<String>(numTables / 2);

165 ArrayList<String> tableTitles = new ArrayList<String>(numTables / 2);

166 boolean foundDefaultTable = false;

167 int visibleIndex = 0;

168 for (int i = 0; i < numTables; i++) {

169 String tableName = tablesVec.get(i);

170 if (!document.get_table_is_hidden(tableName)) {

171 tableNames.add(tableName);

172 // JNI is "expensive", the comparison will only be called if we haven't already found the default table

173 if (!foundDefaultTable && tableName.equals(document.get_default_table())) {

174 documentInfo.setDefaultTableIndex(visibleIndex);

175 foundDefaultTable = true;

176 }

177 tableTitles.add(document.get_table_title(tableName));

178 visibleIndex++;

179 }

180 }

181

182 // set everything we need

183 documentInfo.setTableNames(tableNames);

184 documentInfo.setTableTitles(tableTitles);

185 documentInfo.setTitle(document.get_database_title());

186

187 return documentInfo;

188 }

189

190 /*

191 * Gets the layout group for the list view using the defined layout list in the document or the table fields if

192 * there's no defined layout group for the list view.

193 */

194 private org.glom.libglom.LayoutGroup getValidListViewLayoutGroup(String tableName) {

195

196 LayoutGroupVector layoutGroupVec = document.get_data_layout_groups("list", tableName);

197

198 int listViewLayoutGroupSize = Utils.safeLongToInt(layoutGroupVec.size());

199 org.glom.libglom.LayoutGroup libglomLayoutGroup = null;

200 if (listViewLayoutGroupSize > 0) {

201 // a list layout group is defined; we can use the first group as the list

202 if (listViewLayoutGroupSize > 1)

203 Log.warn(documentID, tableName, "The size of the list layout group is greater than 1. "

204 + "Attempting to use the first item for the layout list view.");

205

206 libglomLayoutGroup = layoutGroupVec.get(0);

207 } else {

208 // a list layout group is *not* defined; we are going make a libglom layout group from the list of fields

209 Log.info(documentID, tableName,

210 "A list layout is not defined for this table. Displaying a list layout based on the field list.");

211

212 FieldVector fieldsVec = document.get_table_fields(tableName);

213 libglomLayoutGroup = new org.glom.libglom.LayoutGroup();

214 for (int i = 0; i < fieldsVec.size(); i++) {

215 Field field = fieldsVec.get(i);

216 LayoutItem_Field layoutItemField = new LayoutItem_Field();

217 layoutItemField.set_full_field_details(field);

218 libglomLayoutGroup.add_item(layoutItemField);

219 }

220 }

221

222 return libglomLayoutGroup;

223 }

224

225 ArrayList<DataItem[]> getListViewData(String tableName, int start, int length, boolean useSortClause,

226 int sortColumnIndex, boolean isAscending) {

227 // Validate the table name.

228 tableName = getTableNameToUse(tableName);

229

230 // Get the libglom LayoutGroup that represents the list view.

231 org.glom.libglom.LayoutGroup libglomLayoutGroup = getValidListViewLayoutGroup(tableName);

232

233 // Create a database access object for the list view.

234 ListViewDBAccess listViewDBAccess = new ListViewDBAccess(document, documentID, cpds, tableName,

235 libglomLayoutGroup);

236

237 // Return the data.

238 return listViewDBAccess.getData(start, length, useSortClause, sortColumnIndex, isAscending);

239 }

240

241 DataItem[] getDetailsData(String tableName, String primaryKeyValue) {

242 // Validate the table name.

243 tableName = getTableNameToUse(tableName);

244

245 DetailsDBAccess detailsDBAccess = new DetailsDBAccess(document, documentID, cpds, tableName);

246

247 return detailsDBAccess.getData(primaryKeyValue);

248 }

249

250 ArrayList<DataItem[]> getRelatedListData(String tableName, String relationshipName, String foreignKeyValue,

251 int start, int length, boolean useSortClause, int sortColumnIndex, boolean isAscending) {

252 // Validate the table name.

253 tableName = getTableNameToUse(tableName);

254

255 // Create a database access object for the related list

256 RelatedListDBAccess relatedListDBAccess = new RelatedListDBAccess(document, documentID, cpds, tableName,

257 relationshipName);

258

259 // Return the data

260 return relatedListDBAccess.getData(start, length, foreignKeyValue, useSortClause, sortColumnIndex, isAscending);

261 }

262

263 ArrayList<LayoutGroup> getDetailsLayoutGroup(String tableName) {

264 // Validate the table name.

265 tableName = getTableNameToUse(tableName);

266

267 // Get the details layout group information for each LayoutGroup in the LayoutGroupVector

268 LayoutGroupVector layoutGroupVec = document.get_data_layout_groups("details", tableName);

269 ArrayList<LayoutGroup> layoutGroups = new ArrayList<LayoutGroup>();

270 for (int i = 0; i < layoutGroupVec.size(); i++) {

271 org.glom.libglom.LayoutGroup libglomLayoutGroup = layoutGroupVec.get(i);

272

273 // satisfy the precondition of getDetailsLayoutGroup(String, org.glom.libglom.LayoutGroup)

274 if (libglomLayoutGroup == null)

275 continue;

276

277 layoutGroups.add(getDetailsLayoutGroup(tableName, libglomLayoutGroup));

278 }

279

280 return layoutGroups;

281 }

282

283 LayoutGroup getListViewLayoutGroup(String tableName) {

284 // Validate the table name.

285 tableName = getTableNameToUse(tableName);

286

287 org.glom.libglom.LayoutGroup libglomLayoutGroup = getValidListViewLayoutGroup(tableName);

288

289 return getListLayoutGroup(tableName, libglomLayoutGroup);

290 }

291

292 /*

293 * Gets the expected row count for a related list.

294 */

295 int getRelatedListRowCount(String tableName, String relationshipName, String foreignKeyValue) {

296 // Validate the table name.

297 tableName = getTableNameToUse(tableName);

298

299 // Create a database access object for the related list

300 RelatedListDBAccess relatedListDBAccess = new RelatedListDBAccess(document, documentID, cpds, tableName,

301 relationshipName);

302

303 // Return the row count

304 return relatedListDBAccess.getExpectedResultSize(foreignKeyValue);

305 }

306

307 NavigationRecord getSuitableRecordToViewDetails(String tableName, String relationshipName, String primaryKeyValue) {

308 // Validate the table name.

309 tableName = getTableNameToUse(tableName);

310

311 RelatedListNavigation relatedListNavigation = new RelatedListNavigation(document, documentID, cpds, tableName,

312 relationshipName);

313

314 return relatedListNavigation.getNavigationRecord(primaryKeyValue);

315 }

316

317 /*

318 * Gets a LayoutGroup DTO for the given table name and libglom LayoutGroup. This method can be used for the main

319 * list view table and for the related list table.

320 */

321 private LayoutGroup getListLayoutGroup(String tableName, org.glom.libglom.LayoutGroup libglomLayoutGroup) {

322 LayoutGroup layoutGroup = new LayoutGroup();

323 int primaryKeyIndex = -1;

324

325 // look at each child item

326 LayoutItemVector layoutItemsVec = libglomLayoutGroup.get_items();

327 int numItems = Utils.safeLongToInt(layoutItemsVec.size());

328 for (int i = 0; i < numItems; i++) {

329 org.glom.libglom.LayoutItem libglomLayoutItem = layoutItemsVec.get(i);

330

331 // TODO add support for other LayoutItems (Text, Image, Button etc.)

332 LayoutItem_Field libglomLayoutItemField = LayoutItem_Field.cast_dynamic(libglomLayoutItem);

333 if (libglomLayoutItemField != null) {

334 layoutGroup.addItem(convertToGWTGlomLayoutItemField(libglomLayoutItemField, true));

335 Field field = libglomLayoutItemField.get_full_field_details();

336 if (field.get_primary_key())

337 primaryKeyIndex = i;

338 } else {

339 Log.info(documentID, tableName,

340 "Ignoring unknown list LayoutItem of type " + libglomLayoutItem.get_part_type_name() + ".");

341 continue;

342 }

343 }

344

345 // set the expected result size for list view tables

346 LayoutItem_Portal libglomLayoutItemPortal = LayoutItem_Portal.cast_dynamic(libglomLayoutGroup);

347 if (libglomLayoutItemPortal == null) {

348 // libglomLayoutGroup is a list view

349 ListViewDBAccess listViewDBAccess = new ListViewDBAccess(document, documentID, cpds, tableName,

350 libglomLayoutGroup);

351 layoutGroup.setExpectedResultSize(listViewDBAccess.getExpectedResultSize());

352 }

353

354 // Set the primary key index for the table

355 if (primaryKeyIndex < 0) {

356 // Add a LayoutItemField for the primary key to the end of the item list in the LayoutGroup because it

357 // doesn't already contain a primary key.

358 Field primaryKey = null;

359 FieldVector fieldsVec = document.get_table_fields(tableName);

360 for (int i = 0; i < Utils.safeLongToInt(fieldsVec.size()); i++) {

361 Field field = fieldsVec.get(i);

362 if (field.get_primary_key()) {

363 primaryKey = field;

364 break;

365 }

366 }

367 if (primaryKey != null) {

368 LayoutItem_Field libglomLayoutItemField = new LayoutItem_Field();

369 libglomLayoutItemField.set_full_field_details(primaryKey);

370 layoutGroup.addItem(convertToGWTGlomLayoutItemField(libglomLayoutItemField, false));

371 layoutGroup.setPrimaryKeyIndex(layoutGroup.getItems().size() - 1);

372 layoutGroup.setHiddenPrimaryKey(true);

373 } else {

374 Log.error(document.get_database_title(), tableName,

375 "A primary key was not found in the FieldVector for this table. Navigation buttons will not work.");

376 }

377

378 } else {

379 layoutGroup.setPrimaryKeyIndex(primaryKeyIndex);

380 }

381

382 layoutGroup.setTableName(tableName);

383

384 return layoutGroup;

385 }

386

387 /*

388 * Gets a recursively defined Details LayoutGroup DTO for the specified libglom LayoutGroup object. This is used for

389 * getting layout information for the details view.

390 *

391 * @param documentID Glom document identifier

392 *

393 * @param tableName table name in the specified Glom document

394 *

395 * @param libglomLayoutGroup libglom LayoutGroup to convert

396 *

397 * @precondition libglomLayoutGroup must not be null

398 *

399 * @return {@link LayoutGroup} object that represents the layout for the specified {@link

400 * org.glom.libglom.LayoutGroup}

401 */

402 private LayoutGroup getDetailsLayoutGroup(String tableName, org.glom.libglom.LayoutGroup libglomLayoutGroup) {

403 LayoutGroup layoutGroup = new LayoutGroup();

404 layoutGroup.setColumnCount(Utils.safeLongToInt(libglomLayoutGroup.get_columns_count()));

405 String layoutGroupTitle = libglomLayoutGroup.get_title();

406 if (layoutGroupTitle.isEmpty())

407 layoutGroup.setName(libglomLayoutGroup.get_name());

408 else

409 layoutGroup.setTitle(layoutGroupTitle);

410

411 // look at each child item

412 LayoutItemVector layoutItemsVec = libglomLayoutGroup.get_items();

413 for (int i = 0; i < layoutItemsVec.size(); i++) {

414 org.glom.libglom.LayoutItem libglomLayoutItem = layoutItemsVec.get(i);

415

416 // just a safety check

417 if (libglomLayoutItem == null)

418 continue;

419

420 org.glom.web.shared.layout.LayoutItem layoutItem = null;

421 org.glom.libglom.LayoutGroup group = org.glom.libglom.LayoutGroup.cast_dynamic(libglomLayoutItem);

422 if (group != null) {

423 // libglomLayoutItem is a LayoutGroup

424 LayoutItem_Portal libglomLayoutItemPortal = LayoutItem_Portal.cast_dynamic(group);

425 if (libglomLayoutItemPortal != null) {

426 // group is a LayoutItem_Portal

427 LayoutItemPortal layoutItemPortal = new LayoutItemPortal();

428 Relationship relationship = libglomLayoutItemPortal.get_relationship();

429 if (relationship != null) {

430 layoutItemPortal.setNavigationType(convertToGWTGlomNavigationType(libglomLayoutItemPortal

431 .get_navigation_type()));

432

433 layoutItemPortal.setTitle(libglomLayoutItemPortal.get_title_used("")); // parent title not

434 // relevant

435 LayoutGroup tempLayoutGroup = getListLayoutGroup(tableName, libglomLayoutItemPortal);

436 for (org.glom.web.shared.layout.LayoutItem item : tempLayoutGroup.getItems()) {

437 // TODO EDITING If the relationship does not allow editing, then mark all these fields as

438 // non-editable. Check relationship.get_allow_edit() to see if it's editable.

439 layoutItemPortal.addItem(item);

440 }

441 layoutItemPortal.setPrimaryKeyIndex(tempLayoutGroup.getPrimaryKeyIndex());

442 layoutItemPortal.setHiddenPrimaryKey(tempLayoutGroup.hasHiddenPrimaryKey());

443 layoutItemPortal.setName(libglomLayoutItemPortal.get_relationship_name_used());

444 layoutItemPortal.setTableName(relationship.get_from_table());

445 layoutItemPortal.setFromField(relationship.get_from_field());

446

447 // Set whether or not the related list will need to show the navigation buttons.

448 // This was ported from Glom: Box_Data_Portal::get_has_suitable_record_to_view_details()

449 StringBuffer navigationTableName = new StringBuffer();

450 LayoutItem_Field navigationRelationship = new LayoutItem_Field(); // Ignored.

451 libglomLayoutItemPortal.get_suitable_table_to_view_details(navigationTableName,

452 navigationRelationship, document);

453 layoutItemPortal.setAddNavigation(!(navigationTableName.toString().isEmpty()));

454 }

455

456 // Note: empty layoutItemPortal used if relationship is null

457 layoutItem = layoutItemPortal;

458

459 } else {

460 // libglomLayoutItem is a LayoutGroup

461 LayoutItem_Notebook libglomLayoutItemNotebook = LayoutItem_Notebook.cast_dynamic(group);

462 if (libglomLayoutItemNotebook != null) {

463 // group is a LayoutItem_Notebook

464 LayoutGroup tempLayoutGroup = getDetailsLayoutGroup(tableName, libglomLayoutItemNotebook);

465 LayoutItemNotebook layoutItemNotebook = new LayoutItemNotebook();

466 for (LayoutItem item : tempLayoutGroup.getItems()) {

467 layoutItemNotebook.addItem(item);

468 }

469 layoutItemNotebook.setName(tableName);

470 layoutItem = layoutItemNotebook;

471 } else {

472 // group is *not* a LayoutItem_Portal or a LayoutItem_Notebook

473 // recurse into child groups

474 layoutItem = getDetailsLayoutGroup(tableName, group);

475 }

476 }

477 } else {

478 // libglomLayoutItem is *not* a LayoutGroup

479 // create LayoutItem DTOs based on the the libglom type

480 // TODO add support for other LayoutItems (Text, Image, Button etc.)

481 LayoutItem_Field libglomLayoutItemField = LayoutItem_Field.cast_dynamic(libglomLayoutItem);

482 if (libglomLayoutItemField != null) {

483

484 LayoutItemField layoutItemField = convertToGWTGlomLayoutItemField(libglomLayoutItemField, true);

485

486 // Set the full field details with updated field details from the document.

487 libglomLayoutItemField.set_full_field_details(document.get_field(

488 libglomLayoutItemField.get_table_used(tableName), libglomLayoutItemField.get_name()));

489

490 // Determine if the field should have a navigation button and set this in the DTO.

491 Relationship fieldUsedInRelationshipToOne = new Relationship();

492 boolean addNavigation = Glom.layout_field_should_have_navigation(tableName, libglomLayoutItemField,

493 document, fieldUsedInRelationshipToOne);

494 layoutItemField.setAddNavigation(addNavigation);

495

496 // Set the the name of the table to navigate to if navigation should be enabled.

497 if (addNavigation) {

498 // It's not possible to directly check if fieldUsedInRelationshipToOne is

499 // null because of the way that the glom_sharedptr macro works. This workaround accomplishes the

500 // same task.

501 String tableNameUsed;

502 try {

503 Relationship temp = new Relationship();

504 temp.equals(fieldUsedInRelationshipToOne); // this will throw an NPE if

505 // fieldUsedInRelationshipToOne is null

506 // fieldUsedInRelationshipToOne is *not* null

507 tableNameUsed = fieldUsedInRelationshipToOne.get_to_table();

508

509 } catch (NullPointerException e) {

510 // fieldUsedInRelationshipToOne is null

511 tableNameUsed = libglomLayoutItemField.get_table_used(tableName);

512 }

513

514 // Set the navigation table name only if it's not different than the current table name.

515 if (!tableName.equals(tableNameUsed)) {

516 layoutItemField.setNavigationTableName(tableNameUsed);

517 }

518 }

519

520 layoutItem = layoutItemField;

521

522 } else {

523 Log.info(documentID, tableName,

524 "Ignoring unknown details LayoutItem of type " + libglomLayoutItem.get_part_type_name()

525 + ".");

526 continue;

527 }

528 }

529

530 layoutGroup.addItem(layoutItem);

531 }

532

533 return layoutGroup;

534 }

535

536 private GlomNumericFormat convertNumbericFormat(NumericFormat libglomNumericFormat) {

537 GlomNumericFormat gnf = new GlomNumericFormat();

538 gnf.setUseAltForegroundColourForNegatives(libglomNumericFormat.getM_alt_foreground_color_for_negatives());

539 gnf.setCurrencyCode(libglomNumericFormat.getM_currency_symbol());

540 gnf.setDecimalPlaces(Utils.safeLongToInt(libglomNumericFormat.getM_decimal_places()));

541 gnf.setDecimalPlacesRestricted(libglomNumericFormat.getM_decimal_places_restricted());

542 gnf.setUseThousandsSeparator(libglomNumericFormat.getM_use_thousands_separator());

543 return gnf;

544 }

545

546 private Formatting convertFormatting(FieldFormatting libglomFormatting) {

547 Formatting formatting = new Formatting();

548

549 // horizontal alignment

550 Formatting.HorizontalAlignment horizontalAlignment;

551 switch (libglomFormatting.get_horizontal_alignment()) {

552 case HORIZONTAL_ALIGNMENT_LEFT:

553 horizontalAlignment = Formatting.HorizontalAlignment.HORIZONTAL_ALIGNMENT_LEFT;

554 case HORIZONTAL_ALIGNMENT_RIGHT:

555 horizontalAlignment = Formatting.HorizontalAlignment.HORIZONTAL_ALIGNMENT_RIGHT;

556 case HORIZONTAL_ALIGNMENT_AUTO:

557 default:

558 horizontalAlignment = Formatting.HorizontalAlignment.HORIZONTAL_ALIGNMENT_AUTO;

559 }

560 formatting.setHorizontalAlignment(horizontalAlignment);

561

562 // text colour

563 String foregroundColour = libglomFormatting.get_text_format_color_foreground();

564 if (foregroundColour != null && !foregroundColour.isEmpty())

565 formatting.setTextFormatColourForeground(convertGdkColorToHtmlColour(foregroundColour));

566 String backgroundColour = libglomFormatting.get_text_format_color_background();

567 if (backgroundColour != null && !backgroundColour.isEmpty())

568 formatting.setTextFormatColourBackground(convertGdkColorToHtmlColour(backgroundColour));

569

570 // multiline

571 if (libglomFormatting.get_text_format_multiline()) {

572 formatting.setTextFormatMultilineHeightLines(Utils.safeLongToInt(libglomFormatting

573 .get_text_format_multiline_height_lines()));

574 }

575

576 return formatting;

577 }

578

579 private LayoutItemField convertToGWTGlomLayoutItemField(LayoutItem_Field libglomLayoutItemField,

580 boolean includeFormatting) {

581 LayoutItemField layoutItemField = new LayoutItemField();

582

583 // set type

584 layoutItemField.setType(convertToGWTGlomFieldType(libglomLayoutItemField.get_glom_type()));

585

586 // set title and name

587 layoutItemField.setTitle(libglomLayoutItemField.get_title_or_name());

588 layoutItemField.setName(libglomLayoutItemField.get_name());

589

590 if (includeFormatting) {

591 FieldFormatting glomFormatting = libglomLayoutItemField.get_formatting_used();

592 Formatting formatting = convertFormatting(glomFormatting);

593

594 // create a GlomNumericFormat DTO for numeric values

595 if (libglomLayoutItemField.get_glom_type() == org.glom.libglom.Field.glom_field_type.TYPE_NUMERIC) {

596 formatting.setGlomNumericFormat(convertNumbericFormat(glomFormatting.getM_numeric_format()));

597 }

598 layoutItemField.setFormatting(formatting);

599 }

600

601 return layoutItemField;

602 }

603

604 /*

605 * This method converts a Field.glom_field_type to the equivalent ColumnInfo.FieldType. The need for this comes from

606 * the fact that the GWT FieldType classes can't be used with RPC and there's no easy way to use the java-libglom

607 * Field.glom_field_type enum with RPC. An enum identical to FieldFormatting.glom_field_type is included in the

608 * ColumnInfo class.

609 */

610 private LayoutItemField.GlomFieldType convertToGWTGlomFieldType(Field.glom_field_type type) {

611 switch (type) {

612 case TYPE_BOOLEAN:

613 return LayoutItemField.GlomFieldType.TYPE_BOOLEAN;

614 case TYPE_DATE:

615 return LayoutItemField.GlomFieldType.TYPE_DATE;

616 case TYPE_IMAGE:

617 return LayoutItemField.GlomFieldType.TYPE_IMAGE;

618 case TYPE_NUMERIC:

619 return LayoutItemField.GlomFieldType.TYPE_NUMERIC;

620 case TYPE_TEXT:

621 return LayoutItemField.GlomFieldType.TYPE_TEXT;

622 case TYPE_TIME:

623 return LayoutItemField.GlomFieldType.TYPE_TIME;

624 case TYPE_INVALID:

625 Log.info("Returning TYPE_INVALID.");

626 return LayoutItemField.GlomFieldType.TYPE_INVALID;

627 default:

628 Log.error("Recieved a type that I don't know about: " + Field.glom_field_type.class.getName() + "."

629 + type.toString() + ". Returning " + LayoutItemField.GlomFieldType.TYPE_INVALID.toString() + ".");

630 return LayoutItemField.GlomFieldType.TYPE_INVALID;

631 }

632 }

633

634 /*

635 * Converts a Gdk::Color (16-bits per channel) to an HTML colour (8-bits per channel) by discarding the least

636 * significant 8-bits in each channel.

637 */

638 private String convertGdkColorToHtmlColour(String gdkColor) {

639 if (gdkColor.length() == 13)

640 return gdkColor.substring(0, 3) + gdkColor.substring(5, 7) + gdkColor.substring(9, 11);

641 else if (gdkColor.length() == 7) {

642 // This shouldn't happen but let's deal with it if it does.

643 Log.warn(documentID,

644 "Expected a 13 character string but received a 7 character string. Returning received string.");

645 return gdkColor;

646 } else {

647 Log.error("Did not receive a 13 or 7 character string. Returning black HTML colour code.");

648 return "#000000";

649 }

650 }

651

652 /*

653 * This method converts a LayoutItem_Portal.navigation_type from java-libglom to the equivalent

654 * LayoutItemPortal.NavigationType from Online Glom. This conversion is required because the LayoutItem_Portal class

655 * from java-libglom can't be used with GWT-RPC. An enum identical to LayoutItem_Portal.navigation_type from

656 * java-libglom is included in the LayoutItemPortal data transfer object.

657 */

658 private LayoutItemPortal.NavigationType convertToGWTGlomNavigationType(

659 LayoutItem_Portal.navigation_type navigationType) {

660 switch (navigationType) {

661 case NAVIGATION_NONE:

662 return LayoutItemPortal.NavigationType.NAVIGATION_NONE;

663 case NAVIGATION_AUTOMATIC:

664 return LayoutItemPortal.NavigationType.NAVIGATION_AUTOMATIC;

665 case NAVIGATION_SPECIFIC:

666 return LayoutItemPortal.NavigationType.NAVIGATION_SPECIFIC;

667 default:

668 Log.error("Recieved an unknown NavigationType: " + LayoutItem_Portal.navigation_type.class.getName() + "."

669 + navigationType.toString() + ". Returning " + LayoutItemPortal.NavigationType.NAVIGATION_AUTOMATIC

670 + ".");

671 return LayoutItemPortal.NavigationType.NAVIGATION_AUTOMATIC;

672 }

673 }

674

675 /**

676 * Gets the table name to use when accessing the database and the document. This method guards against SQL injection

677 * attacks by returning the default table if the requested table is not in the database or if the table name has not

678 * been set.

679 *

680 * @param tableName

681 * The table name to validate.

682 * @return The table name to use.

683 */

684 private String getTableNameToUse(String tableName) {

685 if (tableName == null || tableName.isEmpty() || !document.get_table_is_known(tableName)) {

686 return document.get_default_table();

687 }

688 return tableName;

689 }

690

691 }