Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/CollectionMonitor.java @ 7464:f16dce7a2407
Simplified recommendattion monitor code a bit.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Wed, 30 Oct 2013 11:57:04 +0100 |
parents | 505b05e223b1 |
children | fff862f4ef76 |
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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.HashMap; import java.util.List; import java.util.Map; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import org.dive4elements.artifacts.Artifact; import org.dive4elements.artifacts.ArtifactNamespaceContext; import org.dive4elements.artifacts.CallContext; import org.dive4elements.artifacts.Hook; import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator; import org.dive4elements.artifactdatabase.state.Output; import org.dive4elements.river.artifacts.datacage.Recommendations; /** Monitors collection changes. */ public class CollectionMonitor implements Hook { @Override public void setup(Node cfg) { } @Override public void execute(Artifact artifact, CallContext context, Document doc) { D4EArtifact flys = (D4EArtifact) artifact; // Do not generate recommendations for a loaded artifact. String out = flys.getBoundToOut(); if (out != null && !out.isEmpty()) { return; } NodeList results = doc.getElementsByTagNameNS( ArtifactNamespaceContext.NAMESPACE_URI, "result"); if (results.getLength() < 1) { return; } Element result = (Element)results.item(0); ElementCreator creator = new ElementCreator( doc, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); Element recommended = creator.create("recommended-artifacts"); String[] outs = extractOutputNames(flys, context); Map<String, Object> params = getNoneUserSpecificParameters(flys, context); Recommendations rec = Recommendations.getInstance(); // TODO For newer official-lines recommendations we actually // need user-id (null here). rec.recommend(flys, null, outs, params, recommended); result.appendChild(recommended); } /** * Get outputnames from current state (only the ones for which * facets exist). */ public static String[] extractOutputNames( D4EArtifact flys, CallContext context) { if (flys instanceof ChartArtifact) { return new String[0]; } List<Output> outs = flys.getCurrentOutputs(context); int num = outs == null ? 0 : outs.size(); String[] names = new String[num]; for (int i = 0; i < num; i++) { names[i] = outs.get(i).getName(); } return names; } /** * Creates Map from Strings "recommended" to "true". */ protected Map<String, Object> getNoneUserSpecificParameters( D4EArtifact flys, CallContext context) { Map<String, Object> params = new HashMap<String, Object>(1); params.put("recommended", "true"); return params; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :