Mercurial > dive4elements > framework
comparison artifact-database/src/main/java/org/dive4elements/artifactdatabase/DefaultArtifactContext.java @ 473:d0ac790a6c89 dive4elements-move
Moved directories to org.dive4elements
| author | Sascha L. Teichmann <teichmann@intevation.de> |
|---|---|
| date | Thu, 25 Apr 2013 10:57:18 +0200 |
| parents | artifact-database/src/main/java/de/intevation/artifactdatabase/DefaultArtifactContext.java@b77465617071 |
| children | 415df0fc4fa1 |
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| 472:783cc1b6b615 | 473:d0ac790a6c89 |
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| 1 /* | |
| 2 * Copyright (c) 2010 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 | |
| 9 package de.intevation.artifactdatabase; | |
| 10 | |
| 11 import java.util.HashMap; | |
| 12 | |
| 13 import org.w3c.dom.Document; | |
| 14 | |
| 15 import de.intevation.artifacts.GlobalContext; | |
| 16 | |
| 17 /** | |
| 18 * Default implementation of the context. | |
| 19 * Besides of the configuration it hosts a map to store key/value pairs. | |
| 20 * | |
| 21 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> | |
| 22 */ | |
| 23 public class DefaultArtifactContext implements GlobalContext | |
| 24 { | |
| 25 /** | |
| 26 * The global configuration document of the artifact database. | |
| 27 */ | |
| 28 protected Document config; | |
| 29 | |
| 30 /** | |
| 31 * Custom key/value pairs to be used globally in the whole server. | |
| 32 */ | |
| 33 protected HashMap map; | |
| 34 | |
| 35 /** | |
| 36 * Default constructor | |
| 37 */ | |
| 38 public DefaultArtifactContext() { | |
| 39 this(null); | |
| 40 } | |
| 41 | |
| 42 /** | |
| 43 * Constructor to create a context with a given global | |
| 44 * configuration document and an empty map of custom | |
| 45 * key/value pairs. | |
| 46 * @param config | |
| 47 */ | |
| 48 public DefaultArtifactContext(Document config) { | |
| 49 this.config = config; | |
| 50 map = new HashMap(); | |
| 51 } | |
| 52 | |
| 53 /** | |
| 54 * Fetch a custom value from the global key/value map using | |
| 55 * a given key. | |
| 56 * @param key The key. | |
| 57 * @return The stored value or null if no value was found under | |
| 58 * this key. | |
| 59 */ | |
| 60 public synchronized Object get(Object key) { | |
| 61 return map.get(key); | |
| 62 } | |
| 63 | |
| 64 /** | |
| 65 * Store a custom key/value pair in the global map. | |
| 66 * @param key The key to store | |
| 67 * @param value The value to store | |
| 68 * @return The old value registered under the key or null | |
| 69 * if none wa there before. | |
| 70 */ | |
| 71 public synchronized Object put(Object key, Object value) { | |
| 72 return map.put(key, value); | |
| 73 } | |
| 74 | |
| 75 /** | |
| 76 * Returns a reference to the global configuration document. | |
| 77 * @return The global configuration document. | |
| 78 */ | |
| 79 public Document getConfig() { | |
| 80 return config; | |
| 81 } | |
| 82 } | |
| 83 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |