sascha@403: package de.intevation.artifactdatabase.state;
sascha@403: 
sascha@403: import de.intevation.artifacts.Artifact;
sascha@403: 
sascha@403: import java.util.HashMap;
sascha@403: import java.util.Map;
sascha@403: 
sascha@403: public interface FacetActivity
sascha@403: {
sascha@403:     public static final FacetActivity ACTIVE = new FacetActivity() {
sascha@403:         @Override
sascha@403:         public boolean isInitialActive(
sascha@403:             Artifact artifact,
sascha@403:             Facet    facet,
sascha@403:             String   output
sascha@403:         ) {
sascha@403:             return true;
sascha@403:         }
sascha@403:     };
sascha@403: 
sascha@403:     public static final FacetActivity INACTIVE = new FacetActivity() {
sascha@403:         @Override
sascha@403:         public boolean isInitialActive(
sascha@403:             Artifact artifact,
sascha@403:             Facet    facet,
sascha@403:             String   output
sascha@403:         ) {
sascha@403:             return false;
sascha@403:         }
sascha@403:     };
sascha@403: 
sascha@403:     boolean isInitialActive(Artifact artifact, Facet facet, String output);
sascha@403: 
sascha@403:     public static final class Registry {
sascha@403: 
sascha@403:         private static final Registry INSTANCE = new Registry();
sascha@403: 
sascha@403:         private Map<String, FacetActivity> activities;
sascha@403: 
sascha@403:         private Registry() {
sascha@403:             activities = new HashMap<String, FacetActivity>();
sascha@403:         }
sascha@403: 
sascha@404:         public static Registry getInstance() {
sascha@403:             return INSTANCE;
sascha@403:         }
sascha@403: 
sascha@403:         public synchronized FacetActivity getActivity(String key) {
sascha@403:             FacetActivity activity = activities.get(key);
sascha@403:             return activity != null ? activity : ACTIVE;
sascha@403:         }
sascha@403: 
sascha@403:         public synchronized void register(String key, FacetActivity activity) {
sascha@403:             activities.put(key, activity);
sascha@403:         }
sascha@403:     }
sascha@403: }
sascha@403: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :