1 /*
2 * Copyright 2008 The Kuali Foundation
3 *
4 * Licensed under the Educational Community License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.opensource.org/licenses/ecl2.php
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.kuali.ole.sys.document.service.impl;
17
18 import java.util.HashSet;
19 import java.util.List;
20 import java.util.Set;
21
22 import org.kuali.ole.sys.document.service.AccountingLineTableTransformation;
23 import org.kuali.ole.sys.document.web.AccountingLineTableCell;
24 import org.kuali.ole.sys.document.web.AccountingLineTableRow;
25
26 /**
27 * Rendering transformation which removes any empty cells and rows from a table
28 */
29 public class RemoveEmptyCellsAndRowsRenderingTransformationImpl implements AccountingLineTableTransformation {
30
31 /**
32 * Removes any empty cells and rows from this table
33 * @param rows the table rows to render
34 */
35 public void transformRows(List<AccountingLineTableRow> rows) {
36 Set<AccountingLineTableRow> rowsToRemove = new HashSet<AccountingLineTableRow>();
37 for (AccountingLineTableRow row : rows) {
38 removeEmptyCells(row);
39 if (row.isEmpty()) {
40 rowsToRemove.add(row);
41 }
42 }
43 rows.removeAll(rowsToRemove);
44 }
45
46 /**
47 * Removes all empty cells from a given row
48 * @param row the row to remove empty cells from
49 */
50 public void removeEmptyCells(AccountingLineTableRow row) {
51 Set<AccountingLineTableCell> cellsToRemove = new HashSet<AccountingLineTableCell>();
52 for (AccountingLineTableCell cell : row.getCells()) {
53 if (cell.isEmpty()) {
54 cellsToRemove.add(cell);
55 }
56 }
57 row.getCells().removeAll(cellsToRemove);
58 }
59 }