Mercurial > dive4elements > framework
comparison artifact-database/src/main/java/de/intevation/artifactdatabase/ArtifactCallContext.java @ 219:cabe4c02ab64
Refactored the CallContextImpl - there are two concrete classes for Artifacts and ArtifactCollections now.
artifacts/trunk@1559 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Thu, 24 Mar 2011 16:16:51 +0000 |
| parents | |
| children | a8a06bbe306c |
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| 218:70cbbe144931 | 219:cabe4c02ab64 |
|---|---|
| 1 /* | |
| 2 * Copyright (c) 2010, 2011 by Intevation GmbH | |
| 3 * | |
| 4 * This program is free software under the LGPL (>=v2.1) | |
| 5 * Read the file LGPL.txt coming with the software for details | |
| 6 * or visit http://www.gnu.org/licenses/ if it does not exist. | |
| 7 */ | |
| 8 package de.intevation.artifactdatabase; | |
| 9 | |
| 10 import org.apache.log4j.Logger; | |
| 11 | |
| 12 import de.intevation.artifacts.CallMeta; | |
| 13 | |
| 14 import de.intevation.artifactdatabase.Backend.PersistentArtifact; | |
| 15 | |
| 16 | |
| 17 /** | |
| 18 * Class that implements the call context handed to the methods calls | |
| 19 * describe(), feed(), etc. of the artifact. | |
| 20 * | |
| 21 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> | |
| 22 */ | |
| 23 public class ArtifactCallContext extends AbstractCallContext { | |
| 24 | |
| 25 private static Logger logger = Logger.getLogger(ArtifactCallContext.class); | |
| 26 | |
| 27 | |
| 28 /** | |
| 29 * Error message issued if an artifact wants to translate itself | |
| 30 * into a none valid persistent state. | |
| 31 */ | |
| 32 public static final String INVALID_CALL_STATE = "Invalid after call state"; | |
| 33 | |
| 34 /** | |
| 35 * Error message issued if one tries to remove a requested artifact | |
| 36 * from the list of artifacts running in background which is | |
| 37 * not in this list. | |
| 38 */ | |
| 39 public static final String NOT_IN_BACKGROUND = "Not in background"; | |
| 40 | |
| 41 | |
| 42 /** | |
| 43 * The persistence wrapper around the living artifact | |
| 44 */ | |
| 45 protected PersistentArtifact artifact; | |
| 46 | |
| 47 | |
| 48 public ArtifactCallContext( | |
| 49 ArtifactDatabaseImpl artifactDatabase, | |
| 50 int action, | |
| 51 CallMeta callMeta, | |
| 52 Object context, | |
| 53 PersistentArtifact artifact) | |
| 54 { | |
| 55 super(artifactDatabase, action, callMeta, context); | |
| 56 | |
| 57 this.artifact = artifact; | |
| 58 } | |
| 59 | |
| 60 | |
| 61 public void afterCall(int action) { | |
| 62 this.action = action; | |
| 63 if (action == BACKGROUND) { | |
| 64 database.addIdToBackground(artifact.getId()); | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 | |
| 69 public void afterBackground(int action) { | |
| 70 if (this.action != BACKGROUND) { | |
| 71 throw new IllegalStateException(NOT_IN_BACKGROUND); | |
| 72 } | |
| 73 database.fromBackground(artifact, action); | |
| 74 } | |
| 75 | |
| 76 | |
| 77 public Long getTimeToLive() { | |
| 78 return artifact.getTTL(); | |
| 79 } | |
| 80 | |
| 81 | |
| 82 /** | |
| 83 * Dispatches and executes the persistence action after | |
| 84 * the return of the concrete artifact call. | |
| 85 */ | |
| 86 public void postCall() { | |
| 87 switch (action) { | |
| 88 case NOTHING: | |
| 89 break; | |
| 90 case TOUCH: | |
| 91 artifact.touch(); | |
| 92 break; | |
| 93 case STORE: | |
| 94 artifact.store(); | |
| 95 break; | |
| 96 case BACKGROUND: | |
| 97 logger.warn( | |
| 98 "BACKGROUND processing is not fully implemented, yet!"); | |
| 99 artifact.store(); | |
| 100 break; | |
| 101 default: | |
| 102 logger.error(INVALID_CALL_STATE + ": " + action); | |
| 103 throw new IllegalStateException(INVALID_CALL_STATE); | |
| 104 } | |
| 105 } | |
| 106 } | |
| 107 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |