Mercurial > dive4elements > framework
comparison artifact-database/src/main/java/de/intevation/artifactdatabase/state/StateEngine.java @ 104:26bfff409dd3
Added interfaces and engines used in concrete artifact packages.
artifacts/trunk@1289 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Thu, 03 Feb 2011 18:00:41 +0000 |
| parents | |
| children | ece0fdb07975 |
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| 103:1282cf96d3eb | 104:26bfff409dd3 |
|---|---|
| 1 package de.intevation.artifactdatabase.state; | |
| 2 | |
| 3 import java.util.HashMap; | |
| 4 import java.util.List; | |
| 5 import java.util.Map; | |
| 6 | |
| 7 import org.apache.log4j.Logger; | |
| 8 | |
| 9 /** | |
| 10 * The StateEngine stores all states for each Artifact. | |
| 11 * | |
| 12 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 13 */ | |
| 14 public class StateEngine { | |
| 15 | |
| 16 /** The logger used in this class. */ | |
| 17 private static Logger logger = Logger.getLogger(StateEngine.class); | |
| 18 | |
| 19 /** | |
| 20 * A map that contains the states of the artifacts. The key of this map is | |
| 21 * the name of an artifact, its value is a list of all states the artifact | |
| 22 * can reach. | |
| 23 */ | |
| 24 protected Map<String, List> states; | |
| 25 | |
| 26 | |
| 27 /** | |
| 28 * The default constructor. | |
| 29 */ | |
| 30 public StateEngine() { | |
| 31 states = new HashMap<String, List>(); | |
| 32 } | |
| 33 | |
| 34 | |
| 35 /** | |
| 36 * Add new states for a specific artifact. | |
| 37 * | |
| 38 * @param artifact The name of the artifact. | |
| 39 * @param states A list of states that the artifact can reach. | |
| 40 * | |
| 41 * @return true, if the states were added, otherwise false. | |
| 42 */ | |
| 43 public boolean addStates(String artifact, List states) { | |
| 44 List tmp = this.states.get(artifact); | |
| 45 | |
| 46 if (tmp != null) { | |
| 47 logger.info( | |
| 48 "States for the artifact '" + artifact + "' already stored."); | |
| 49 | |
| 50 return false; | |
| 51 } | |
| 52 | |
| 53 logger.debug("Add new states for the artifact '" + artifact + "'"); | |
| 54 return this.states.put(artifact, states) != null; | |
| 55 } | |
| 56 } | |
| 57 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |