Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/DataFacet.java @ 7471:fff862f4ef76
Experimental caching of datacage recommendations. The respective hook is called a lot and running the datacage over and over again when loading data can be expensive. So the generated recommendations are cached for some time.
Hopefully this improves the overall speed of loading data from the datacage.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Wed, 30 Oct 2013 15:26:21 +0100 |
parents | af13ceeba52a |
children | 8c64617a7991 |
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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.model; import org.dive4elements.artifacts.Artifact; import org.dive4elements.artifacts.CallContext; import org.dive4elements.artifactdatabase.state.Facet; import org.dive4elements.river.artifacts.D4EArtifact; import org.dive4elements.river.artifacts.states.DefaultState.ComputeType; public class DataFacet extends BlackboardDataFacet { protected ComputeType type; protected String hash; protected String stateId; /** Trivial constructor. */ public DataFacet() { } /** * Defaults to ADVANCE Compute type. * @param name Name of the facet. * @param description maybe localized description of the facet. */ public DataFacet(String name, String description) { this(name, description, ComputeType.ADVANCE); } public DataFacet(String name, String description, ComputeType type) { this(name, description, type, null); } public DataFacet( String name, String description, ComputeType type, String hash ) { super(name, description); this.type = type; this.hash = hash; } public DataFacet( String name, String description, ComputeType type, String hash, String stateId ) { super(name, description); this.type = type; this.hash = hash; this.stateId = stateId; } public DataFacet( int index, String name, String description, ComputeType type, String hash, String stateId ) { super(index, name, description); this.type = type; this.hash = hash; this.stateId = stateId; } /** * Return computation result. */ @Override public Object getData(Artifact artifact, CallContext context) { D4EArtifact flys = (D4EArtifact)artifact; String theHash = (hash != null) ? hash : flys.hash(); return (stateId != null && stateId.length() > 0) ? flys.compute(context, theHash, stateId, type, false) : flys.compute(context, theHash, type, false); } /** * Return a deep copy. */ @Override public Facet deepCopy() { DataFacet copy = new DataFacet(); copy.set(this); copy.type = type; copy.hash = hash; copy.stateId = stateId; return copy; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :