Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/SedimentDensityArtifact.java @ 9425:3f49835a00c3
Extended CrossSectionFacet so it may fetch different data from within the artifact result.
Also allows to have acces to the potentially already computed artifact result via its normal computation cache.
author | gernotbelger |
---|---|
date | Fri, 17 Aug 2018 15:31:02 +0200 |
parents | 5e38e2924c07 |
children | 0a5239a1e46e |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.artifacts; import java.util.ArrayList; import java.util.List; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.dive4elements.artifactdatabase.state.DefaultOutput; import org.dive4elements.artifactdatabase.state.Facet; import org.dive4elements.artifactdatabase.state.FacetActivity; import org.dive4elements.artifactdatabase.state.State; import org.dive4elements.artifacts.Artifact; import org.dive4elements.artifacts.ArtifactFactory; import org.dive4elements.artifacts.CallMeta; import org.dive4elements.artifacts.common.utils.XMLUtils; import org.dive4elements.river.artifacts.states.DefaultState.ComputeType; import org.dive4elements.river.artifacts.model.minfo.SedimentDensityFacet; import org.dive4elements.river.artifacts.model.minfo.SedimentDensityFactory; import org.dive4elements.river.artifacts.resources.Resources; import org.dive4elements.river.artifacts.states.StaticState; import org.dive4elements.river.artifacts.model.FacetTypes; /** Artifact to access sediment density measurements. */ public class SedimentDensityArtifact extends StaticD4EArtifact implements FacetTypes { /** The log for this class. */ private static Logger log = Logger.getLogger(SedimentDensityArtifact.class); /** Artifact key name. */ private static final String NAME = "sedimentdensity"; /** Spawn only inactive facets. */ static { // TODO: Move to configuration. FacetActivity.Registry.getInstance() .register(NAME, FacetActivity.INACTIVE); } /** Need to give the state an id. */ public static final String STATIC_STATE_NAME = "state.sedimentdensity.static"; /** One and only state to be in. */ protected transient State state = null; protected String DATA_ID = "ID"; /** * Trivial Constructor. */ public SedimentDensityArtifact() { log.debug("SedimentDensityArtifact.SedimentDensityArtifact"); } /** Get artifact key name. */ @Override public String getName() { return NAME; } private Object getSedimentDensity() { log.debug("SedimentDensityArtifact.getSedimentDensity"); Integer id = getDataAsInteger(DATA_ID); // TODO use cache if possible return SedimentDensityFactory.getSedimentDensityUncached(id); } private State newDensityState() { return new StaticState(STATIC_STATE_NAME) { public Object staticCompute(List<Facet> facets) { return getSedimentDensity(); } }; } /** Create a new state with bogus output. */ protected State spawnState() { state = newDensityState(); List<Facet> fs = getFacets(STATIC_STATE_NAME); DefaultOutput output = new DefaultOutput( "general", "general", "image/png", fs, "chart"); state.getOutputs().add(output); return state; } /** * Gets called from factory, to set things up. */ @Override public void setup( String identifier, ArtifactFactory factory, Object context, CallMeta callMeta, Document data, List<Class> loadFacets) { log.debug("SedimentDensityArtifact.setup"); state = newDensityState(); if (log.isDebugEnabled()) { log.debug(XMLUtils.toString(data)); } List<Facet> fs = new ArrayList<Facet>(); String code = getDatacageIDValue(data); if (code != null) { double[] depth = SedimentDensityFactory.getDepth( Integer.valueOf(code)); String name = Resources.getMsg( callMeta, "sedimentdensity", "sedimentdensity"); name += " " + depth[0] + " - " + depth[1] + " cm"; Facet facet = new SedimentDensityFacet( 0, SEDIMENT_DENSITY, name, ComputeType.ADVANCE, state.getID(), "hash" ); fs.add(facet); addFacets(state.getID(), fs); addStringData(DATA_ID, code); } else { log.error("No id given."); } spawnState(); super.setup(identifier, factory, context, callMeta, data, loadFacets); } /** * Get a list containing the one and only State. * @param context ignored. * @return list with one and only state. */ @Override protected List<State> getStates(Object context) { ArrayList<State> states = new ArrayList<State>(); states.add(getState()); return states; } /** * Get the "current" state (there is but one). * @param cc ignored. * @return the "current" (only possible) state. */ @Override public State getCurrentState(Object cc) { return getState(); } /** * Get the only possible state. * @return the state. */ protected State getState() { return getState(null, null); } /** * Get the state. * @param context ignored. * @param stateID ignored. * @return the state. */ @Override protected State getState(Object context, String stateID) { return (state != null) ? state : spawnState(); } /** * Called via setup. Overridden to avoid cloning all data. * * @param artifact The master-artifact. */ @Override protected void initialize( Artifact artifact, Object context, CallMeta meta) { log.debug("SedimentDensityArtifact.initialize"); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :