Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/states/MinMaxState.java @ 7637:49a92f7e2017
issue1020: Do not set a data with value null, this breaks stuff further
down the road.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
---|---|
date | Tue, 03 Dec 2013 12:25:57 +0100 |
parents | af13ceeba52a |
children | e4606eae8ea5 |
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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.states; import org.w3c.dom.Element; import org.apache.log4j.Logger; import org.dive4elements.artifacts.Artifact; import org.dive4elements.artifacts.CallContext; import org.dive4elements.artifacts.common.ArtifactNamespaceContext; import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator; import org.dive4elements.artifactdatabase.ProtocolUtils; import org.dive4elements.river.artifacts.D4EArtifact; /** * State that holds minimun and maximum (for validation). * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public abstract class MinMaxState extends DefaultState { private static final Logger logger = Logger.getLogger(MinMaxState.class); @Override protected void appendItems( Artifact artifact, ElementCreator creator, String name, CallContext context, Element select ) { D4EArtifact flys = (D4EArtifact) artifact; select.setAttributeNS( ArtifactNamespaceContext.NAMESPACE_URI, "art:type", getType()); String[] defMinMax = getDefaults(artifact, name); Element min = ProtocolUtils.createArtNode( creator, "min", new String[] { "value", "default" }, new String[] { String.valueOf(getLower(flys)), defMinMax[0] }); Element max = ProtocolUtils.createArtNode( creator, "max", new String[] { "value", "default" }, new String[] { String.valueOf(getUpper(flys)), defMinMax[1] }); select.appendChild(min); select.appendChild(max); } /** * @param cc * @param name * @param value * @param type * * @return */ @Override protected String getLabelFor( CallContext cc, String name, String value, String type ) { if (type.indexOf("range") > 0) { String[] minmax = extractRangeAsString(value); if (minmax != null) { return minmax[0] + " - " + minmax[1]; } } return super.getLabelFor(cc, name, value, type); } /** * Returns a string array with [min,max] from <i>rawValue</i>. * <i>rawValue</i> should be a string like "1999;2001". * * @param rawValue A string with min and max separated by a ';'. * * @return the min and max as string array ([min,max]). */ protected String[] extractRangeAsString(String rawValue) { return rawValue.split(";"); } /** * This method returns the default values for min and max. If the static * field DefaultState.USE_DEFAULTS is set, the minimum and maximum inserted * by the user is returned as string. Otherwise, the absolute minimum and * maximum are returned. * * @param artifact The D4EArtifact. * @param name The name of the parameter. * * @return a string array [min,max] that contains the minimum and maximum * values for the parameter <i>name</i>. */ protected String[] getDefaults(Artifact artifact, String name) { if (DefaultState.USE_DEFAULTS) { String[] tmp = getMinMaxByParameter(artifact, name); return tmp != null ? tmp : getMinMaxDefaults(artifact, name); } else { return getMinMaxDefaults(artifact, name); } } /** * Returns a string array with minimum and maximum inserted by the user as * [min,max]. * * @param artifact The D4EArtifact that stores the parameter. * @param name The name of the parameter for raw min/max value string. * * @return a string array [min,max]. */ protected String[] getMinMaxByParameter(Artifact artifact, String name) { D4EArtifact flys = (D4EArtifact) artifact; String rawValue = flys.getDataAsString(name); if (rawValue == null) { logger.debug("No value for '" + rawValue + "' existing."); return null; } logger.debug("Raw value for '" + name + "' = " + rawValue); return extractRangeAsString(rawValue); } /** * Returns a string array with absolute minimum and maximum as [min,max]. * * @param artifact The D4EArtifact (not used in this implementation). * @param name The parameter name (not used in this implementation). * * @return a string array [min,max]. */ protected String[] getMinMaxDefaults(Artifact artifact, String name) { D4EArtifact flys = (D4EArtifact) artifact; Object lower = getLower(flys); Object upper = getUpper(flys); return new String[] { String.valueOf(lower), String.valueOf(upper) }; } protected abstract Object getLower(D4EArtifact flys); protected abstract Object getUpper(D4EArtifact flys); protected abstract String getType(); } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :