| 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.util; |
| 16 | |
| 17 | import net.sourceforge.hiveboard.Account; |
| 18 | import net.sourceforge.hiveboard.Board; |
| 19 | import net.sourceforge.hiveboard.Event; |
| 20 | import net.sourceforge.hiveboard.EventType; |
| 21 | import net.sourceforge.hiveboard.event.ConstraintEventFilter; |
| 22 | import net.sourceforge.hiveboard.event.Constraints; |
| 23 | import net.sourceforge.hiveboard.event.DeferredConsumer; |
| 24 | import net.sourceforge.hiveboard.event.EventsPriorities; |
| 25 | import net.sourceforge.hiveboard.model.AccountRepository; |
| 26 | import net.sourceforge.hiveevents.Channel; |
| 27 | import net.sourceforge.hiveevents.Filter; |
| 28 | import net.sourceforge.hivegui.table.DefaultDataListModel; |
| 29 | |
| 30 | public abstract class AbstractParticipantListModel extends DefaultDataListModel<Participant> |
| 31 | { |
| 32 | protected AbstractParticipantListModel(Board board, AccountRepository repository) |
| 33 | { |
| 34 | super(Participant.class, new ParticipantComparator()); |
| 35 | _repository = repository; |
| 36 | _board = board; |
| 37 | } |
| 38 | |
| 39 | protected void installConsumers(Channel<Event> eventChannel) |
| 40 | { |
| 41 | String constraint; |
| 42 | |
| 43 | // account modifications |
| 44 | _consumerModifyAccount = new DeferredConsumer() |
| 45 | { |
| 46 | @Override protected void pushEvent(Event event) |
| 47 | { |
| 48 | updateParticipant(event.getWho(), true); |
| 49 | } |
| 50 | }; |
| 51 | constraint = Constraints.eventType(EventType.EVT_MODIFY_ACCOUNT); |
| 52 | registerConsumer(eventChannel, constraint, _consumerModifyAccount); |
| 53 | |
| 54 | // writer |
| 55 | _consumerGive = new DeferredConsumer() |
| 56 | { |
| 57 | @Override protected void pushEvent(Event event) |
| 58 | { |
| 59 | // First update the previous writer |
| 60 | updateParticipant(_writer, false); |
| 61 | // Then set new writer |
| 62 | _writer = event.getWho(); |
| 63 | updateParticipant(_writer, false); |
| 64 | } |
| 65 | }; |
| 66 | constraint = Constraints.eventTypeWhere(_board.getId(), EventType.EVT_GIVE_TOKEN); |
| 67 | registerConsumer(eventChannel, constraint, _consumerGive); |
| 68 | } |
| 69 | |
| 70 | static protected void registerConsumer( Channel<Event> channel, |
| 71 | String constraint, |
| 72 | DeferredConsumer consumer) |
| 73 | { |
| 74 | Filter<Event> filter = new ConstraintEventFilter(constraint); |
| 75 | channel.registerPushConsumer( EventsPriorities.PARTICIPANTS_LIST_UPDATE, |
| 76 | filter, |
| 77 | consumer); |
| 78 | } |
| 79 | |
| 80 | protected void updateParticipant(int who, boolean refresh) |
| 81 | { |
| 82 | int index = findParticipant(who); |
| 83 | if (index >= 0) |
| 84 | { |
| 85 | if (refresh) |
| 86 | { |
| 87 | setRow(index, createParticipant(who)); |
| 88 | } |
| 89 | else |
| 90 | { |
| 91 | fireRowsModified(index, index); |
| 92 | } |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | protected Participant createParticipant(int id) |
| 97 | { |
| 98 | Account account = _repository.getAccount(id); |
| 99 | if (account == null) |
| 100 | { |
| 101 | return null; |
| 102 | } |
| 103 | else |
| 104 | { |
| 105 | return new Participant(account, _board); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | protected int findParticipant(int id) |
| 110 | { |
| 111 | int index = 0; |
| 112 | for (Participant participant: _items) |
| 113 | { |
| 114 | if (participant.getAccount().getId() == id) |
| 115 | { |
| 116 | return index; |
| 117 | } |
| 118 | index++; |
| 119 | } |
| 120 | return -1; |
| 121 | } |
| 122 | |
| 123 | protected final AccountRepository _repository; |
| 124 | protected final Board _board; |
| 125 | protected int _writer; |
| 126 | protected DeferredConsumer _consumerModifyAccount; |
| 127 | protected DeferredConsumer _consumerGive; |
| 128 | } |