| 1 | // Copyright 2004-2007 Jean-Francois Poilpret |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package net.sourceforge.hiveboard.view; |
| 16 | |
| 17 | import java.util.Comparator; |
| 18 | |
| 19 | import net.sourceforge.hiveboard.Board; |
| 20 | import net.sourceforge.hiveboard.Event; |
| 21 | import net.sourceforge.hiveboard.EventType; |
| 22 | import net.sourceforge.hiveboard.event.ConstraintEventFilter; |
| 23 | import net.sourceforge.hiveboard.event.Constraints; |
| 24 | import net.sourceforge.hiveboard.event.EventsPriorities; |
| 25 | import net.sourceforge.hiveboard.event.PersistentDeferredConsumer; |
| 26 | import net.sourceforge.hiveboard.main.IdentityHolder; |
| 27 | import net.sourceforge.hiveboard.model.BoardRepository; |
| 28 | import net.sourceforge.hiveevents.Channel; |
| 29 | import net.sourceforge.hiveevents.Filter; |
| 30 | import net.sourceforge.hivegui.table.DefaultDataListModel; |
| 31 | |
| 32 | public class BoardListModel extends DefaultDataListModel<Board> |
| 33 | { |
| 34 | public BoardListModel( BoardRepository repository, |
| 35 | IdentityHolder holder, |
| 36 | Channel<Event> eventChannel) |
| 37 | { |
| 38 | super(Board.class, new BoardComparator()); |
| 39 | setRows(repository.getBoards()); |
| 40 | _identity = holder; |
| 41 | |
| 42 | // Add events listeners |
| 43 | int priority = EventsPriorities.BOARD_LIST_UPDATE; |
| 44 | String constraint = Constraints.eventType( EventType.EVT_CREATE_BOARD, |
| 45 | EventType.EVT_BOARD_ADD_PARTICIPANT); |
| 46 | Filter<Event> filter = new ConstraintEventFilter(constraint); |
| 47 | PersistentDeferredConsumer consumer = new PersistentDeferredConsumer() |
| 48 | { |
| 49 | @Override protected void pushEvent(Event event) |
| 50 | { |
| 51 | if (event.getBoard() != null) |
| 52 | { |
| 53 | addRow(event.getBoard()); |
| 54 | } |
| 55 | } |
| 56 | }; |
| 57 | eventChannel.registerPushConsumer(priority, filter, consumer); |
| 58 | |
| 59 | constraint = Constraints.eventType(EventType.EVT_MODIFY_BOARD); |
| 60 | filter = new ConstraintEventFilter(constraint); |
| 61 | consumer = new PersistentDeferredConsumer() |
| 62 | { |
| 63 | @Override protected void pushEvent(Event event) |
| 64 | { |
| 65 | boardModified(event.getBoard()); |
| 66 | } |
| 67 | }; |
| 68 | eventChannel.registerPushConsumer(priority, filter, consumer); |
| 69 | |
| 70 | constraint = Constraints.eventType(EventType.EVT_DESTROY_BOARD) + |
| 71 | " || (" + |
| 72 | Constraints.eventTypeWho( |
| 73 | _identity.getId(), EventType.EVT_BOARD_DEL_PARTICIPANT) + |
| 74 | ")"; |
| 75 | filter = new ConstraintEventFilter(constraint); |
| 76 | consumer = new PersistentDeferredConsumer() |
| 77 | { |
| 78 | @Override protected void pushEvent(Event event) |
| 79 | { |
| 80 | removeRow(findBoard(event.getWhere())); |
| 81 | } |
| 82 | }; |
| 83 | eventChannel.registerPushConsumer(priority, filter, consumer); |
| 84 | |
| 85 | constraint = Constraints.eventType(EventType.EVT_MODIFY_ACCOUNT); |
| 86 | filter = new ConstraintEventFilter(constraint); |
| 87 | consumer = new PersistentDeferredConsumer() |
| 88 | { |
| 89 | @Override protected void pushEvent(Event event) |
| 90 | { |
| 91 | accountModified(event.getAccount().getId()); |
| 92 | } |
| 93 | }; |
| 94 | eventChannel.registerPushConsumer(priority, filter, consumer); |
| 95 | } |
| 96 | |
| 97 | private void boardModified(Board board) |
| 98 | { |
| 99 | if (board.getParticipants().contains(_identity.getId())) |
| 100 | { |
| 101 | int index = findBoard(board.getId()); |
| 102 | if (index >= 0) |
| 103 | { |
| 104 | // Normal modification on board to which self already participates |
| 105 | // No need to use event.getBoard() which is a temporary object, |
| 106 | // the right board is already updated by BoardRepository, so |
| 107 | // we just need to notify the change to the model |
| 108 | // NB: setRow(getRow()) is ugly but necessary currently because |
| 109 | // it is the only way to make sure that the list is always sorted |
| 110 | setRow(index, getRow(index)); |
| 111 | } |
| 112 | else |
| 113 | { |
| 114 | // Modification includes adding self to list of participants |
| 115 | addRow(board); |
| 116 | } |
| 117 | } |
| 118 | else |
| 119 | { |
| 120 | // Modification includes removal of self from participants |
| 121 | removeRow(findBoard(board.getId())); |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | private void accountModified(int account) |
| 126 | { |
| 127 | int index = 0; |
| 128 | for (Board board: _items) |
| 129 | { |
| 130 | if (board.getInitiator() == account) |
| 131 | { |
| 132 | fireRowsModified(index, index); |
| 133 | } |
| 134 | index++; |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | public int findBoard(int id) |
| 139 | { |
| 140 | int index = 0; |
| 141 | for (Board board: _items) |
| 142 | { |
| 143 | if (board.getId() == id) |
| 144 | { |
| 145 | return index; |
| 146 | } |
| 147 | index++; |
| 148 | } |
| 149 | return -1; |
| 150 | } |
| 151 | |
| 152 | static private class BoardComparator implements Comparator<Board> |
| 153 | { |
| 154 | public int compare(Board b1, Board b2) |
| 155 | { |
| 156 | int diff = b1.getName().compareTo(b2.getName()); |
| 157 | if (diff != 0) |
| 158 | { |
| 159 | return diff; |
| 160 | } |
| 161 | return b1.getId() - b2.getId(); |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | final private IdentityHolder _identity; |
| 166 | } |