| 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.event; |
| 16 | |
| 17 | import net.sourceforge.hiveboard.EventType; |
| 18 | |
| 19 | /** |
| 20 | * Utility class used to help building common constraints using the HiveEvents |
| 21 | * OCL language. |
| 22 | * @author Jean-Francois Poilpret |
| 23 | */ |
| 24 | public final class Constraints |
| 25 | { |
| 26 | static public String eventTypeWho(int who, EventType... types) |
| 27 | { |
| 28 | return "(" + eventType(types) + " && event.who == " + who + ")"; |
| 29 | } |
| 30 | |
| 31 | static public String eventTypeWhere(int where, EventType... types) |
| 32 | { |
| 33 | return "(" + eventType(types) + " && event.where == " + where + ")"; |
| 34 | } |
| 35 | |
| 36 | static public String eventType(EventType... types) |
| 37 | { |
| 38 | StringBuffer constraint = new StringBuffer(); |
| 39 | constraint.append("(event.type == '"); |
| 40 | constraint.append(types[0].name()); |
| 41 | constraint.append("'"); |
| 42 | for (int i = 1; i < types.length; i++) |
| 43 | { |
| 44 | constraint.append(" || event.type == '"); |
| 45 | constraint.append(types[i].name()); |
| 46 | constraint.append("'"); |
| 47 | } |
| 48 | constraint.append(")"); |
| 49 | return constraint.toString(); |
| 50 | } |
| 51 | |
| 52 | private Constraints() |
| 53 | { |
| 54 | } |
| 55 | } |