Mercurial > dive4elements > framework
comparison artifact-database/src/main/java/de/intevation/artifactdatabase/state/StateEngine.java @ 108:9ece61d918b1
Improved the StateEngine and the TransitionEngine to retrieve the reachable states of a current state.
artifacts/trunk@1297 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Mon, 07 Feb 2011 11:20:31 +0000 |
| parents | ece0fdb07975 |
| children | 2ce31a9414ff |
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| 107:39d9391059bd | 108:9ece61d918b1 |
|---|---|
| 23 */ | 23 */ |
| 24 protected Map<String, List> states; | 24 protected Map<String, List> states; |
| 25 | 25 |
| 26 | 26 |
| 27 /** | 27 /** |
| 28 * A map that contains all existing states. The key of this map is the ID of | |
| 29 * the state, its value is the state itself. | |
| 30 */ | |
| 31 protected Map<String, State> allStates; | |
| 32 | |
| 33 | |
| 34 /** | |
| 28 * The default constructor. | 35 * The default constructor. |
| 29 */ | 36 */ |
| 30 public StateEngine() { | 37 public StateEngine() { |
| 31 states = new HashMap<String, List>(); | 38 states = new HashMap<String, List>(); |
| 39 allStates = new HashMap<String, State>(); | |
| 40 } | |
| 41 | |
| 42 | |
| 43 /** | |
| 44 * This method adds a state into the map <i>allStates</i>. | |
| 45 * | |
| 46 * @param state The state to add. | |
| 47 */ | |
| 48 protected void addState(State state) { | |
| 49 allStates.put(state.getID(), state); | |
| 50 } | |
| 51 | |
| 52 | |
| 53 /** | |
| 54 * Returns the state based on its ID. | |
| 55 * | |
| 56 * @param stateId The ID of the desired state. | |
| 57 * | |
| 58 * @return the state. | |
| 59 */ | |
| 60 public State getState(String stateId) { | |
| 61 return allStates.get(stateId); | |
| 32 } | 62 } |
| 33 | 63 |
| 34 | 64 |
| 35 /** | 65 /** |
| 36 * Add new states for a specific artifact. | 66 * Add new states for a specific artifact. |
| 38 * @param artifact The name of the artifact. | 68 * @param artifact The name of the artifact. |
| 39 * @param states A list of states that the artifact can reach. | 69 * @param states A list of states that the artifact can reach. |
| 40 * | 70 * |
| 41 * @return true, if the states were added, otherwise false. | 71 * @return true, if the states were added, otherwise false. |
| 42 */ | 72 */ |
| 43 public boolean addStates(String artifact, List states) { | 73 public boolean addStates(String artifact, List<State> states) { |
| 44 List tmp = this.states.get(artifact); | 74 List tmp = this.states.get(artifact); |
| 45 | 75 |
| 46 if (tmp != null) { | 76 if (tmp != null) { |
| 47 logger.info( | 77 logger.info( |
| 48 "States for the artifact '" + artifact + "' already stored."); | 78 "States for the artifact '" + artifact + "' already stored."); |
| 49 | 79 |
| 50 return false; | 80 return false; |
| 81 } | |
| 82 | |
| 83 // add the state to the map with all existing states | |
| 84 for (State s: states) { | |
| 85 addState(s); | |
| 51 } | 86 } |
| 52 | 87 |
| 53 logger.debug("Add new states for the artifact '" + artifact + "'"); | 88 logger.debug("Add new states for the artifact '" + artifact + "'"); |
| 54 return this.states.put(artifact, states) != null; | 89 return this.states.put(artifact, states) != null; |
| 55 } | 90 } |