ingo@137: package de.intevation.flys.artifacts.states;
ingo@137: 
ingo@322: import java.util.Map;
ingo@322: 
ingo@137: import org.apache.log4j.Logger;
ingo@137: 
ingo@137: import org.w3c.dom.Element;
ingo@137: 
ingo@313: import de.intevation.artifacts.Artifact;
ingo@137: import de.intevation.artifacts.CallContext;
ingo@137: 
ingo@137: import de.intevation.artifacts.common.utils.XMLUtils;
ingo@137: 
ingo@137: import de.intevation.artifactdatabase.ProtocolUtils;
ingo@137: import de.intevation.artifactdatabase.data.StateData;
ingo@137: 
ingo@319: import de.intevation.flys.model.Gauge;
ingo@319: import de.intevation.flys.model.River;
ingo@319: import de.intevation.flys.model.Wst;
ingo@319: 
ingo@319: import de.intevation.flys.artifacts.FLYSArtifact;
ingo@319: import de.intevation.flys.artifacts.model.WstFactory;
ingo@137: import de.intevation.flys.artifacts.resources.Resources;
ingo@137: 
ingo@137: /**
ingo@137:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@137:  */
ingo@322: public class WQSelect extends RangeState {
ingo@137: 
ingo@137:     /** The logger used in this class.*/
ingo@137:     private static Logger logger = Logger.getLogger(WQSelect.class);
ingo@137: 
ingo@137: 
ingo@137:     /** The default step width for Qs.*/
ingo@137:     public static final String DEFAULT_STEP_Q = "50";
ingo@137: 
ingo@137:     /** The default step width for Qs.*/
ingo@137:     public static final String DEFAULT_STEP_W = "30";
ingo@137: 
ingo@322:     /** The name of the 'mode' field. */
ingo@322:     public static final String WQ_MODE = "wq_mode";
ingo@322: 
ingo@322:     /** The name of the 'from' field. */
ingo@322:     public static final String WQ_FROM = "wq_from";
ingo@322: 
ingo@322:     /** The name of the 'to' field. */
ingo@322:     public static final String WQ_TO = "wq_to";
ingo@322: 
ingo@322:     /** The name of the 'step' field. */
ingo@322:     public static final String WQ_STEP = "wq_step";
ingo@322: 
ingo@137:     /**
ingo@137:      * The default constructor that initializes an empty State object.
ingo@137:      */
ingo@137:     public WQSelect() {
ingo@137:     }
ingo@137: 
ingo@137:     protected Element createData(
ingo@137:         XMLUtils.ElementCreator cr,
ingo@313:         Artifact    artifact,
ingo@137:         StateData   data,
ingo@137:         CallContext context)
ingo@137:     {
ingo@137:         Element select = ProtocolUtils.createArtNode(
ingo@137:             cr, "select", null, null);
ingo@137: 
ingo@137:         cr.addAttr(select, "name", data.getName(), true);
ingo@137: 
ingo@137:         Element label = ProtocolUtils.createArtNode(
ingo@137:             cr, "label", null, null);
ingo@137: 
ingo@137:         Element choices = ProtocolUtils.createArtNode(
ingo@137:             cr, "choices", null, null);
ingo@137: 
ingo@137:         label.setTextContent(Resources.getMsg(
ingo@137:             context.getMeta(),
ingo@137:             data.getName(),
ingo@137:             data.getName()));
ingo@137: 
ingo@137:         select.appendChild(label);
ingo@137: 
ingo@137:         return select;
ingo@137:     }
ingo@137: 
ingo@137: 
ingo@137:     protected Element[] createItems(
ingo@137:         XMLUtils.ElementCreator cr,
ingo@313:         Artifact    artifact,
ingo@137:         String      name,
ingo@137:         CallContext context)
ingo@137:     {
ingo@137:         // TODO Insert correct min/max values!
ingo@319:         double[] minmaxW = determineMinMaxW(artifact);
ingo@319:         double[] minmaxQ = determineMinMaxQ(artifact);
ingo@137: 
ingo@137:         if (name.equals("wq_from")) {
ingo@319:             Element minW = createItem(
ingo@319:                 cr, new String[] {"minW", new Double(minmaxW[0]).toString()});
ingo@319:             Element minQ = createItem(
ingo@319:                 cr, new String[] {"minQ", new Double(minmaxQ[0]).toString()});
ingo@137:             return new Element[] { minW, minQ };
ingo@137:         }
ingo@137:         else if (name.equals("wq_to")) {
ingo@319:             Element maxW = createItem(
ingo@319:                 cr, new String[] {"maxW", new Double(minmaxW[1]).toString()});
ingo@319:             Element maxQ = createItem(
ingo@319:                 cr, new String[] {"maxQ", new Double(minmaxQ[1]).toString()});
ingo@137:             return new Element[] { maxW, maxQ };
ingo@137:         }
ingo@137:         else {
ingo@137:             Element stepW = createItem(cr, new String[] {"stepW", DEFAULT_STEP_W});
ingo@137:             Element stepQ = createItem(cr, new String[] {"stepQ", DEFAULT_STEP_Q});
ingo@137:             return new Element[] { stepW, stepQ };
ingo@137:         }
ingo@137:     }
ingo@137: 
ingo@137: 
ingo@137:     protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
ingo@137:         Element item  = ProtocolUtils.createArtNode(cr, "item", null, null);
ingo@137:         Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
ingo@137:         Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
ingo@137: 
ingo@137:         String[] arr = (String[]) obj;
ingo@137: 
ingo@137:         label.setTextContent(arr[0]);
ingo@137:         value.setTextContent(arr[1]);
ingo@137: 
ingo@137:         item.appendChild(label);
ingo@137:         item.appendChild(value);
ingo@137: 
ingo@137:         return item;
ingo@137:     }
ingo@137: 
ingo@137: 
ingo@137:     protected String getUIProvider() {
ingo@137:         return "wq_panel";
ingo@137:     }
ingo@319: 
ingo@319: 
ingo@319:     /**
ingo@319:      * Determines the min and max W value for the current gauge. If no min and
ingo@319:      * max values could be determined, this method will return
ingo@319:      * [Double.MIN_VALUE, Double.MAX_VALUE].
ingo@319:      *
ingo@319:      * @param artifact The FLYSArtifact.
ingo@319:      *
ingo@319:      * @return the min and max W values for the current gauge.
ingo@319:      */
ingo@319:     protected double[] determineMinMaxW(Artifact artifact) {
ingo@319:         logger.debug("WQSelect.determineCurrentGauge");
ingo@319: 
ingo@319:         Gauge    gauge   = ((FLYSArtifact) artifact).getGauge();
ingo@320:         double[] minmaxW = gauge != null ? gauge.determineMinMaxW() : null;
ingo@319: 
ingo@319:         double minW = minmaxW != null ? minmaxW[0] : Double.MIN_VALUE;
ingo@319:         double maxW = minmaxW != null ? minmaxW[1] : Double.MAX_VALUE;
ingo@319: 
ingo@319:         return new double[] { minW, maxW };
ingo@319:     }
ingo@319: 
ingo@319: 
ingo@319:     /**
ingo@319:      * Determines the min and max Q value for the current gauge. If no min and
ingo@319:      * max values could be determined, this method will return
ingo@319:      * [Double.MIN_VALUE, Double.MAX_VALUE].
ingo@319:      *
ingo@319:      * @param artifact The FLYSArtifact.
ingo@319:      *
ingo@319:      * @return the min and max Q values for the current gauge.
ingo@319:      */
ingo@319:     protected double[] determineMinMaxQ(Artifact artifact) {
ingo@319:         logger.debug("WQSelect.determineMinMaxQ");
ingo@319: 
ingo@319:         FLYSArtifact flysArtifact = (FLYSArtifact) artifact;
ingo@319: 
ingo@319:         River    river = flysArtifact.getRiver();
ingo@319:         Gauge    gauge = flysArtifact.getGauge();
ingo@319:         Wst      wst   = WstFactory.getWst(river);
ingo@319: 
ingo@320:         double[] minmaxQ = gauge != null
ingo@320:             ? wst.determineMinMaxQ(gauge.getRange())
ingo@320:             : null;
ingo@319: 
ingo@319:         double minQ = minmaxQ != null ? minmaxQ[0] : Double.MIN_VALUE;
ingo@319:         double maxQ = minmaxQ != null ? minmaxQ[1] : Double.MAX_VALUE;
ingo@319: 
ingo@319:         return new double[] { minQ, maxQ };
ingo@319:     }
ingo@322: 
ingo@322: 
ingo@322:     @Override
ingo@322:     public boolean validate(Artifact artifact, CallContext context)
ingo@322:     throws IllegalArgumentException
ingo@322:     {
ingo@322:         logger.debug("WQSelect.validate");
ingo@322: 
ingo@322:         Map<String, StateData> data = getData();
ingo@322: 
ingo@322:         String mode = (String) data.get(WQ_MODE).getValue();
ingo@322:         logger.debug("WQ Mode: " + mode);
ingo@322: 
ingo@322:         String fromStr = (String) data.get(WQ_FROM).getValue();
ingo@322:         String toStr   = (String) data.get(WQ_TO).getValue();
ingo@322:         String stepStr = (String) data.get(WQ_STEP).getValue();
ingo@322: 
ingo@352:         if (fromStr == null || toStr == null || stepStr == null) {
ingo@352:             throw new IllegalArgumentException("error_empty_state");
ingo@352:         }
ingo@352: 
ingo@322:         double from = Double.parseDouble(fromStr);
ingo@322:         double to   = Double.parseDouble(toStr);
ingo@322:         double step = Double.parseDouble(stepStr);
ingo@322: 
ingo@322:         try {
ingo@322:             if (mode != null && mode.trim().toLowerCase().equals("w")) {
ingo@322:                 return validateW(artifact, context, from, to, step);
ingo@322:             }
ingo@322:             else if (mode != null && mode.trim().toLowerCase().equals("q")) {
ingo@322:                 return validateQ(artifact, context, from, to, step);
ingo@322:             }
ingo@322:             else {
ingo@322:                 throw new IllegalArgumentException("error_feed_invalid_wq_mode");
ingo@322:             }
ingo@322:         }
ingo@322:         catch (NumberFormatException nfe) {
ingo@322:             throw new IllegalArgumentException("error_feed_number_format");
ingo@322:         }
ingo@322:     }
ingo@322: 
ingo@322: 
ingo@322:     /**
ingo@322:      * Validates the inserted W values.
ingo@322:      *
ingo@322:      * @param artifact The owner artifact.
ingo@322:      * @param context The CallContext
ingo@322:      * @param from The lower value of the W range.
ingo@322:      * @param to The upper value of the W range.
ingo@322:      * @param step The step width.
ingo@322:      *
ingo@322:      * @return true, if everything was fine, otherwise an exception is thrown.
ingo@322:      */
ingo@322:     protected boolean validateW(
ingo@322:         Artifact    artifact,
ingo@322:         CallContext context,
ingo@322:         double from,
ingo@322:         double to,
ingo@322:         double step)
ingo@322:     throws    IllegalArgumentException
ingo@322:     {
ingo@322:         logger.debug("WQSelect.validateW");
ingo@322: 
ingo@322:         double[] minmaxW = determineMinMaxW(artifact);
ingo@322: 
ingo@322:         return validateRange(minmaxW[0], minmaxW[1], from, to, step);
ingo@322:     }
ingo@322: 
ingo@322: 
ingo@322:     /**
ingo@322:      * Validates the inserted Q values.
ingo@322:      *
ingo@322:      * @param artifact The owner artifact.
ingo@322:      * @param context The CallContext
ingo@322:      * @param from The lower value of the Q range.
ingo@322:      * @param to The upper value of the Q range.
ingo@322:      * @param step The step width.
ingo@322:      *
ingo@322:      * @return true, if everything was fine, otherwise an exception is thrown.
ingo@322:      */
ingo@322:     protected boolean validateQ(
ingo@322:         Artifact    artifact,
ingo@322:         CallContext context,
ingo@322:         double from,
ingo@322:         double to,
ingo@322:         double step)
ingo@322:     throws    IllegalArgumentException
ingo@322:     {
ingo@322:         logger.debug("WQSelect.validateQ");
ingo@322: 
ingo@322:         double[] minmaxQ = determineMinMaxQ(artifact);
ingo@322: 
ingo@322:         return validateRange(minmaxQ[0], minmaxQ[1], from, to, step);
ingo@322:     }
ingo@137: }
ingo@137: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :