--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/WQSelect.java	Fri Sep 28 12:14:10 2012 +0200
@@ -0,0 +1,356 @@
+package de.intevation.flys.artifacts.states;
+
+import java.util.Map;
+
+import gnu.trove.TDoubleArrayList;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Element;
+
+import de.intevation.artifacts.Artifact;
+import de.intevation.artifacts.CallContext;
+
+import de.intevation.artifacts.common.utils.XMLUtils;
+
+import de.intevation.artifactdatabase.ProtocolUtils;
+import de.intevation.artifactdatabase.data.StateData;
+
+import de.intevation.flys.model.Gauge;
+import de.intevation.flys.model.River;
+import de.intevation.flys.model.Wst;
+
+import de.intevation.flys.artifacts.FLYSArtifact;
+import de.intevation.flys.artifacts.model.WstFactory;
+import de.intevation.flys.artifacts.resources.Resources;
+
+/**
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public class WQSelect extends RangeState {
+
+    /** The logger used in this class.*/
+    private static Logger logger = Logger.getLogger(WQSelect.class);
+
+
+    /** The default step width for Qs.*/
+    public static final String DEFAULT_STEP_Q = "50";
+
+    /** The default step width for Qs.*/
+    public static final String DEFAULT_STEP_W = "30";
+
+    /** The name of the 'mode' field. */
+    public static final String WQ_MODE = "wq_mode";
+
+    /** The name of the 'selection' field.*/
+    public static final String WQ_SELECTION = "wq_selection";
+
+    /** The name of the 'from' field. */
+    public static final String WQ_FROM = "wq_from";
+
+    /** The name of the 'to' field. */
+    public static final String WQ_TO = "wq_to";
+
+    /** The name of the 'step' field. */
+    public static final String WQ_STEP = "wq_step";
+
+    /** The name of the 'single' field. */
+    public static final String WQ_SINGLE = "wq_single";
+
+
+    /**
+     * The default constructor that initializes an empty State object.
+     */
+    public WQSelect() {
+    }
+
+    protected Element createData(
+        XMLUtils.ElementCreator cr,
+        Artifact    artifact,
+        StateData   data,
+        CallContext context)
+    {
+        Element select = ProtocolUtils.createArtNode(
+            cr, "select", null, null);
+
+        cr.addAttr(select, "name", data.getName(), true);
+
+        Element label = ProtocolUtils.createArtNode(
+            cr, "label", null, null);
+
+        Element choices = ProtocolUtils.createArtNode(
+            cr, "choices", null, null);
+
+        label.setTextContent(Resources.getMsg(
+            context.getMeta(),
+            data.getName(),
+            data.getName()));
+
+        select.appendChild(label);
+
+        return select;
+    }
+
+
+    protected Element[] createItems(
+        XMLUtils.ElementCreator cr,
+        Artifact    artifact,
+        String      name,
+        CallContext context)
+    {
+        // TODO Insert correct min/max values!
+        double[] minmaxW = determineMinMaxW(artifact);
+        double[] minmaxQ = determineMinMaxQ(artifact);
+
+        if (name.equals("wq_from")) {
+            Element minW = createItem(
+                cr, new String[] {"minW", new Double(minmaxW[0]).toString()});
+            Element minQ = createItem(
+                cr, new String[] {"minQ", new Double(minmaxQ[0]).toString()});
+            return new Element[] { minW, minQ };
+        }
+        else if (name.equals("wq_to")) {
+            Element maxW = createItem(
+                cr, new String[] {"maxW", new Double(minmaxW[1]).toString()});
+            Element maxQ = createItem(
+                cr, new String[] {"maxQ", new Double(minmaxQ[1]).toString()});
+            return new Element[] { maxW, maxQ };
+        }
+        else {
+            Element stepW = createItem(cr, new String[] {"stepW", DEFAULT_STEP_W});
+            Element stepQ = createItem(cr, new String[] {"stepQ", DEFAULT_STEP_Q});
+            return new Element[] { stepW, stepQ };
+        }
+    }
+
+
+    protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
+        Element item  = ProtocolUtils.createArtNode(cr, "item", null, null);
+        Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
+        Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
+
+        String[] arr = (String[]) obj;
+
+        label.setTextContent(arr[0]);
+        value.setTextContent(arr[1]);
+
+        item.appendChild(label);
+        item.appendChild(value);
+
+        return item;
+    }
+
+
+    protected String getUIProvider() {
+        return "wq_panel";
+    }
+
+
+    /**
+     * Determines the min and max W value for the current gauge. If no min and
+     * max values could be determined, this method will return
+     * [Double.MIN_VALUE, Double.MAX_VALUE].
+     *
+     * @param artifact The FLYSArtifact.
+     *
+     * @return the min and max W values for the current gauge.
+     */
+    protected double[] determineMinMaxW(Artifact artifact) {
+        logger.debug("WQSelect.determineCurrentGauge");
+
+        Gauge    gauge   = ((FLYSArtifact) artifact).getGauge();
+        double[] minmaxW = gauge != null ? gauge.determineMinMaxW() : null;
+
+        double minW = minmaxW != null ? minmaxW[0] : Double.MIN_VALUE;
+        double maxW = minmaxW != null ? minmaxW[1] : Double.MAX_VALUE;
+
+        return new double[] { minW, maxW };
+    }
+
+
+    /**
+     * Determines the min and max Q value for the current gauge. If no min and
+     * max values could be determined, this method will return
+     * [Double.MIN_VALUE, Double.MAX_VALUE].
+     *
+     * @param artifact The FLYSArtifact.
+     *
+     * @return the min and max Q values for the current gauge.
+     */
+    protected double[] determineMinMaxQ(Artifact artifact) {
+        logger.debug("WQSelect.determineMinMaxQ");
+
+        FLYSArtifact flysArtifact = (FLYSArtifact) artifact;
+
+        River    river = flysArtifact.getRiver();
+        Gauge    gauge = flysArtifact.getGauge();
+        Wst      wst   = WstFactory.getWst(river);
+
+        double[] minmaxQ = gauge != null
+            ? wst.determineMinMaxQ(gauge.getRange())
+            : null;
+
+        double minQ = minmaxQ != null ? minmaxQ[0] : Double.MIN_VALUE;
+        double maxQ = minmaxQ != null ? minmaxQ[1] : Double.MAX_VALUE;
+
+        return new double[] { minQ, maxQ };
+    }
+
+
+    @Override
+    public boolean validate(Artifact artifact, CallContext context)
+    throws IllegalArgumentException
+    {
+        logger.debug("WQSelect.validate");
+
+        Map<String, StateData> data = getData();
+
+        String selectionMode = (String) data.get(WQ_SELECTION).getValue();
+
+        if (selectionMode == null || selectionMode.equals("single")) {
+            return validateSingle(artifact, context);
+        }
+        else {
+            return validateRange(artifact, context);
+        }
+    }
+
+
+    protected boolean validateSingle(Artifact artifact, CallContext context)
+    throws    IllegalArgumentException
+    {
+        logger.debug("WQSelect.validateSingle");
+
+        String tmp = (String) data.get(WQ_SINGLE).getValue();
+
+        if (tmp == null || tmp.length() == 0) {
+            throw new IllegalArgumentException("error_empty_state");
+        }
+
+        String[] strValues = tmp.split(" ");
+        TDoubleArrayList all = new TDoubleArrayList();
+
+        for (String strValue: strValues) {
+            try {
+                all.add(Double.parseDouble(strValue));
+            }
+            catch (NumberFormatException nfe) {
+                logger.warn(nfe, nfe);
+            }
+        }
+
+        all.sort();
+
+        String mode = (String) data.get(WQ_MODE).getValue();
+        logger.debug("WQ Mode: " + mode);
+
+        double[] minmax = null;
+
+        if (mode != null && mode.trim().toLowerCase().equals("w")) {
+            minmax = determineMinMaxW(artifact);
+        }
+        else {
+            minmax = determineMinMaxQ(artifact);
+        }
+
+        double min = all.get(0);
+        double max = all.get(all.size()-1);
+
+        logger.debug("Inserted min value = " + min);
+        logger.debug("Inserted max value = " + max);
+
+        return validateBounds(minmax[0], minmax[1], min, max, 0d);
+    }
+
+
+    protected boolean validateRange(Artifact artifact, CallContext context)
+    throws    IllegalArgumentException
+    {
+        logger.debug("WQSelect.validateRange");
+
+        String mode = (String) data.get(WQ_MODE).getValue();
+        logger.debug("WQ Mode: " + mode);
+
+        String fromStr = (String) data.get(WQ_FROM).getValue();
+        String toStr   = (String) data.get(WQ_TO).getValue();
+        String stepStr = (String) data.get(WQ_STEP).getValue();
+
+        if (fromStr == null || toStr == null || stepStr == null) {
+            throw new IllegalArgumentException("error_empty_state");
+        }
+
+        double from = Double.parseDouble(fromStr);
+        double to   = Double.parseDouble(toStr);
+        double step = Double.parseDouble(stepStr);
+
+        try {
+            if (mode != null && mode.trim().toLowerCase().equals("w")) {
+                return validateW(artifact, context, from, to, step);
+            }
+            else if (mode != null && mode.trim().toLowerCase().equals("q")) {
+                return validateQ(artifact, context, from, to, step);
+            }
+            else {
+                throw new IllegalArgumentException("error_feed_invalid_wq_mode");
+            }
+        }
+        catch (NumberFormatException nfe) {
+            throw new IllegalArgumentException("error_feed_number_format");
+        }
+    }
+
+
+    /**
+     * Validates the inserted W values.
+     *
+     * @param artifact The owner artifact.
+     * @param context The CallContext
+     * @param from The lower value of the W range.
+     * @param to The upper value of the W range.
+     * @param step The step width.
+     *
+     * @return true, if everything was fine, otherwise an exception is thrown.
+     */
+    protected boolean validateW(
+        Artifact    artifact,
+        CallContext context,
+        double from,
+        double to,
+        double step)
+    throws    IllegalArgumentException
+    {
+        logger.debug("WQSelect.validateW");
+
+        double[] minmaxW = determineMinMaxW(artifact);
+
+        return validateBounds(minmaxW[0], minmaxW[1], from, to, step);
+    }
+
+
+    /**
+     * Validates the inserted Q values.
+     *
+     * @param artifact The owner artifact.
+     * @param context The CallContext
+     * @param from The lower value of the Q range.
+     * @param to The upper value of the Q range.
+     * @param step The step width.
+     *
+     * @return true, if everything was fine, otherwise an exception is thrown.
+     */
+    protected boolean validateQ(
+        Artifact    artifact,
+        CallContext context,
+        double from,
+        double to,
+        double step)
+    throws    IllegalArgumentException
+    {
+        logger.debug("WQSelect.validateQ");
+
+        double[] minmaxQ = determineMinMaxQ(artifact);
+
+        return validateBounds(minmaxQ[0], minmaxQ[1], from, to, step);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :