--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/state/StateBase.java	Fri Sep 28 12:13:49 2012 +0200
@@ -0,0 +1,902 @@
+/**
+ *
+ */
+package de.intevation.gnv.state;
+
+import de.intevation.artifactdatabase.Config;
+import de.intevation.artifactdatabase.XMLUtils;
+
+import de.intevation.artifacts.ArtifactNamespaceContext;
+import de.intevation.artifacts.CallContext;
+import de.intevation.artifacts.CallMeta;
+
+import de.intevation.gnv.artifacts.GNVArtifactBase;
+
+import de.intevation.gnv.artifacts.cache.CacheFactory;
+
+import de.intevation.gnv.artifacts.ressource.RessourceFactory;
+
+import de.intevation.gnv.geobackend.base.Result;
+
+import de.intevation.gnv.geobackend.base.query.QueryExecutor;
+import de.intevation.gnv.geobackend.base.query.QueryExecutorFactory;
+
+import de.intevation.gnv.geobackend.base.query.exception.QueryException;
+
+import de.intevation.gnv.geobackend.util.DateUtils;
+
+import de.intevation.gnv.state.describedata.DefaultKeyValueDescribeData;
+import de.intevation.gnv.state.describedata.KeyValueDescibeData;
+import de.intevation.gnv.state.describedata.MinMaxDescribeData;
+import de.intevation.gnv.state.describedata.NamedArrayList;
+import de.intevation.gnv.state.describedata.NamedCollection;
+import de.intevation.gnv.state.describedata.SingleValueDescribeData;
+
+import de.intevation.gnv.state.exception.StateException;
+
+import de.intevation.gnv.utils.InputValidator;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Date;
+import java.util.GregorianCalendar;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import javax.xml.xpath.XPathConstants;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+/**
+ * @author Tim Englich         (tim.englich@intevation.de)
+ * @author Ingo Weinzierl      (ingo.weinzierl@intevation.de)
+ * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
+ */
+public abstract class StateBase implements State {
+
+    /**
+     * The UID of this Class
+     */
+    private static final long serialVersionUID = 2411169179001645426L;
+
+    /**
+     * the logger, used to log exceptions and additonaly information
+     */
+    private static Logger log = Logger.getLogger(GNVArtifactBase.class);
+    
+    private final static String MINVALUEFIELDNAME = "minvalue";
+    private final static String MAXVALUEFIELDNAME = "maxvalue";
+    
+    private final static String NODATASELECTIONKEY = "n/n";
+    
+    public final static String DESCRIBEDATAKEY = "_DESCRIBEDATA";
+
+    public final static String XPATH_STATIC_UI  = "art:static";
+    public final static String XPATH_DYNAMIC_UI = "art:dynamic";
+
+    private String id = null;
+
+    private String description = null;
+
+    protected String dataName = null;
+
+    protected boolean dataMultiSelect = false;
+    
+    protected boolean dataNoSelect = false;
+
+    protected String queryID = null;
+
+    protected Collection<String> inputValueNames = null;
+
+    private Map<String, InputValue> inputValues = null;
+
+    private State parent = null;
+
+    protected Map<String, InputData> inputData = null;
+    
+
+    /**
+     * Constructor
+     */
+    public StateBase() {
+        super();
+    }
+
+    /**
+     * @see de.intevation.gnv.state.State#getID()
+     */
+    public String getID() {
+        return this.id;
+    }
+
+    /**
+     * @see de.intevation.gnv.state.State#getDescription()
+     */
+    public String getDescription() {
+        return this.description;
+    }
+
+
+
+    /**
+     * @see de.intevation.gnv.state.State#getRequiredInputValues()
+     */
+    public Collection<InputValue> getRequiredInputValues() {
+        return this.inputValues.values();
+    }
+
+
+    public void reset(String uuid) {
+        
+        if (parent != null) {
+            inputData = parent.inputData();
+        }
+    }
+
+
+    /**
+     * @see de.intevation.gnv.state.State#setup(org.w3c.dom.Node)
+     */
+    public void setup(Node configuration) {
+        log.debug("StateBase.setup");
+        this.id = ((Element)configuration).getAttribute("id");
+        this.description = ((Element)configuration).getAttribute("description");
+
+        log.info("State-ID = " + this.id);
+        
+        NodeList inputValuesNodes = Config.getNodeSetXPath(configuration,
+                "inputvalues/inputvalue");
+        this.inputValues = new HashMap<String, InputValue>(inputValuesNodes
+                .getLength());
+        this.inputValueNames = new ArrayList<String>(inputValuesNodes
+                .getLength());
+        for (int i = 0; i < inputValuesNodes.getLength(); i++) {
+            Element inputValueNode = (Element)inputValuesNodes.item(i);
+            String usedinQueryValue = inputValueNode.getAttribute("usedinquery");
+            int usedinQuery = 1;
+            if (usedinQueryValue != null) {
+                try {
+                    usedinQuery = Integer.parseInt(usedinQueryValue);
+                } catch (NumberFormatException e) {
+                    log
+                            .warn("Used in Query Value cannot be transformed into a Number");
+                }
+            }
+            InputValue inputValue = new DefaultInputValue(inputValueNode.getAttribute("name"), 
+                                                          inputValueNode.getAttribute("type"), 
+                                                          Boolean.parseBoolean(inputValueNode.
+                                                          getAttribute("multiselect")), usedinQuery);
+            log.debug(inputValue.toString());
+            this.inputValues.put(inputValue.getName(), inputValue);
+            this.inputValueNames.add(inputValue.getName());
+        }
+
+        this.queryID = Config.getStringXPath(configuration, "queryID");
+        log.info("QueryID ==> " + this.queryID);
+
+        this.dataName = Config.getStringXPath(configuration, "dataname");
+
+        String dataMultiSelectValue = Config.getStringXPath(configuration,
+                                                           "data-multiselect");
+        if (dataMultiSelectValue != null) {
+            this.dataMultiSelect = Boolean.parseBoolean(dataMultiSelectValue);
+        }
+        
+        String dataNoSelectValue =Config.getStringXPath(configuration,
+                                                        "data-noselect");
+        if (dataNoSelectValue != null) {
+            this. dataNoSelect = Boolean.parseBoolean(dataNoSelectValue);
+        }
+        
+    }
+
+    /**
+     * @see de.intevation.gnv.state.State#getParent()
+     */
+    public State getParent() {
+        return this.parent;
+    }
+
+    /**
+     * @see de.intevation.gnv.state.State#setParent(de.intevation.gnv.state.State)
+     */
+    public void setParent(State state) {
+        this.parent = state;
+    }
+
+    /**
+     * @see de.intevation.gnv.state.State#putInputData(java.util.Collection)
+     */
+    public void putInputData(Collection<InputData> inputData, String uuid)
+                                                                          throws StateException {
+        log.debug("StateBase.putInputData");
+        if (inputData != null) {
+            Iterator<InputData> it = inputData.iterator();
+            InputValidator iv = new InputValidator();
+            while (it.hasNext()) {
+                InputData tmpItem = it.next();
+                InputValue inputValue = this.inputValues.get(tmpItem.getName());
+                if (inputValue != null) {
+                    if (this.inputData == null) {
+                        this.inputData = new HashMap<String, InputData>(
+                                inputData.size());
+                    }
+                    
+                    boolean valid = iv.isInputValid(tmpItem.getValue(),
+                            inputValue.getType());
+                    if (valid) {
+                        if (tmpItem.getName().equals(MINVALUEFIELDNAME)){
+                            String minValue = tmpItem.getValue();
+                            String maxValue = this.getInputValue4ID(inputData, MAXVALUEFIELDNAME);
+                            valid = iv.isInputValid(maxValue,inputValue.getType());
+                            if (!valid){
+                                String errMsg = "Wrong input for " + tmpItem.getValue()
+                                                + " is not an " + inputValue.getType()
+                                                + " Value.";
+                                log.warn(errMsg);
+                                throw new StateException(errMsg);
+                            }
+                            
+                            valid = iv.isInputValid(minValue, 
+                                    maxValue,
+                                    inputValue.getType());
+                            if (!valid){
+                                String errMsg = "MaxValue-Input is less than MinValue-Input ";
+                                log.warn(errMsg);
+                                throw new StateException(errMsg);
+                            }
+                        }else if (tmpItem.getName().equals(MAXVALUEFIELDNAME)){
+                            String minValue = this.getInputValue4ID(inputData, MINVALUEFIELDNAME);
+                            String maxValue = tmpItem.getValue();
+                            valid = iv.isInputValid(minValue,inputValue.getType());
+                            if (!valid){
+                                String errMsg = "Wrong input for " + tmpItem.getValue()
+                                                + " is not an " + inputValue.getType()
+                                                + " Value.";
+                                log.warn(errMsg);
+                                throw new StateException(errMsg);
+                            }
+                            
+                            valid = iv.isInputValid(minValue, 
+                                                    maxValue,
+                                                    inputValue.getType());
+                            if (!valid){
+                                String errMsg = "MaxValue-Input is less than MinValue-Input ";
+                                log.warn(errMsg);
+                                throw new StateException(errMsg);
+                            }
+                        }
+                        this.setSelection(tmpItem, uuid);
+                        this.inputData.put(tmpItem.getName(), tmpItem);
+                    } else {
+                        String errMsg = "Wrong input for " + tmpItem.getValue()
+                                        + " is not an " + inputValue.getType()
+                                        + " Value.";
+                        log.warn(errMsg);
+                        throw new StateException(errMsg);
+                    }
+
+                } else {
+                    String errMsg = "No Inputvalue given for Inputdata "
+                                    + tmpItem.getName();
+                    log.warn(errMsg + "Value will be ignored");
+
+                }
+            }
+        } else {
+            log.warn("No Inputdata given");
+        }
+    }
+    
+    private String getInputValue4ID(Collection<InputData> inputData, String inputName){
+        Iterator<InputData> it = inputData.iterator();
+        while (it.hasNext()) {
+            InputData tmpItem = it.next();
+            if (tmpItem.getName().equals(inputName)){
+                return tmpItem.getValue();
+            }
+        }
+        return null;
+    }
+
+    private void setSelection(InputData inputData, String uuid) {
+        log.debug("StateBase.setSelection");
+
+        Object o = this.getDescribeData(inputData.getName(),uuid);
+        if (o != null) {
+            if (o instanceof Collection<?>) {
+                Collection<KeyValueDescibeData> values = (Collection<KeyValueDescibeData>) o;
+
+                String value = inputData.getValue();
+                String[] selectedValues = value.split(",");
+                Set<String> selectedItems = new HashSet<String>(
+                        selectedValues.length);
+                for (int i = 0; i < selectedValues.length; i++) {
+                    selectedItems.add(selectedValues[i].trim());
+                }
+                // Selektion umsetzen
+                Iterator<KeyValueDescibeData> it = values.iterator();
+                while (it.hasNext()) {
+                    KeyValueDescibeData data = it.next();
+                    String key = "" + data.getKey();
+                    boolean selected = selectedItems.contains(key);
+                    data.setSelected(selected);
+                }
+            } else if (o instanceof MinMaxDescribeData) {
+                MinMaxDescribeData data = (MinMaxDescribeData) o;
+                if (inputData.getName().equals(MINVALUEFIELDNAME)) {
+                    data.setMinValue(inputData.getValue());
+                }
+                if (inputData.getName().equals(MAXVALUEFIELDNAME)) {
+                    data.setMaxValue(inputData.getValue());
+                }
+            } else if (o instanceof SingleValueDescribeData) {
+                ((SingleValueDescribeData)o).setValue(inputData.getValue());
+            }
+        }
+    }
+
+    private Object getDescribeData(String name, String uuid) {
+        log.debug("StateBase.getDescribeData");
+        Collection<Object> descibeData = this.getDescibeData(uuid);
+        if (descibeData != null) {
+            Iterator<Object> it = descibeData.iterator();
+            while (it.hasNext()) {
+                Object o = it.next();
+                if (o instanceof NamedCollection<?>) {
+                    if (name.equals(((NamedCollection<?>) o).getName())) {
+                        return o;
+                    }
+                } else if (o instanceof MinMaxDescribeData) {
+                    if (name.equals(((MinMaxDescribeData) o).getMinName())) {
+                        return o;
+                    }
+                    if (name.equals(((MinMaxDescribeData) o).getMaxName())) {
+                        return o;
+                    }
+                }else if (o instanceof SingleValueDescribeData) {
+                    if (name.equals(((SingleValueDescribeData)o).getName())){
+                        return o;
+                    }
+                }
+            }
+        }
+        return null;
+    }
+
+    /**
+     * @see de.intevation.gnv.state.State#advance(java.lang.String,
+     *      de.intevation.artifacts.CallMeta)
+     */
+    public void advance(String uuid, CallContext context)
+    throws StateException
+    {
+    }
+    
+    public void initialize(String uuid, CallContext context)
+    throws StateException
+    {
+        log.debug("StateBase.initialize");
+        try {
+            String[] filterValues = this
+                    .generateFilterValuesFromInputData();
+            Collection<Result> result = null;
+            try {
+                if (this.queryID != null) {
+                    QueryExecutor queryExecutor = QueryExecutorFactory
+                            .getInstance().getQueryExecutor();
+                    result = queryExecutor.executeQuery(this.queryID,
+                            filterValues);
+                }
+                this.purifyResult(result, uuid);
+            } catch (RuntimeException e) {
+                log.error(e, e);
+            }
+        } catch (QueryException e) {
+            log.error(e, e);
+            throw new StateException(e);
+        }
+    }
+
+    /**
+     * @return
+     */
+    protected String[] generateFilterValuesFromInputData() {
+        List<String> list = new ArrayList<String>();
+        Iterator<String> it = this.inputValueNames.iterator();
+        while (it.hasNext()) {
+            String value = it.next();
+            InputData data = this.inputData.get(value);
+            if (data != null
+                && this.inputValues.containsKey(data.getName())) {
+                int size = this.inputValues.get(data.getName())
+                        .usedInQueries();
+                String type = this.inputValues.get(data.getName())
+                        .getType();
+                String requestValue = data.getValue();
+                if (type.equalsIgnoreCase("string")) {
+                    requestValue = this
+                            .prepareInputData4DBQuery(requestValue);
+                } else if (type.equalsIgnoreCase("date")) {
+                    requestValue = this
+                            .prepareInputData4DateDBQuery(requestValue);
+                } else if (type.equalsIgnoreCase("coordinate")){
+                    requestValue = this
+                    .prepareInputData4RegionDBQuery(requestValue);
+                }
+                for (int j = 0; j < size; j++) {
+                    list.add(requestValue);
+                }
+            }
+        }
+        String[] filterValues = list.toArray(new String[list.size()]);
+        return filterValues;
+    }
+    
+    protected String prepareInputData4RegionDBQuery(String value){
+        return value;
+    }
+
+    private String prepareInputData4DateDBQuery(String value) {
+        log.debug("StateBase.prepareInputData4DateDBQuery");
+        if (value != null) {
+            String[] values = value.split(",");
+            String newValue = "";
+            for (int i = 0; i < values.length; i++) {
+                if (newValue.length() > 0) {
+                    newValue = newValue + " , ";
+                }
+                // TODO JUST HACK FIND A BETTER RESOLUTION
+                newValue = newValue + "to_date('" + values[i].trim()
+                           + "', 'YYYY.MM.DD HH24:MI:SS')";
+            }
+            return newValue;
+        }
+
+        return value;
+    }
+
+    private String prepareInputData4DBQuery(String value) {
+        log.debug("StateBase.prepareInputData4DBQuery");
+        if (value != null) {
+            String[] values = value.split(",");
+            String newValue = "";
+            for (int i = 0; i < values.length; i++) {
+                if (newValue.length() > 0) {
+                    newValue = newValue + " , ";
+                }
+                newValue = newValue + "'" + values[i].trim() + "'";
+            }
+            return newValue;
+        }
+
+        return value;
+
+    }
+
+    /**
+     * @param result
+     */
+    protected void purifyResult(Collection<Result> result, String uuid) {
+        log.debug("StateBase.purifyResult");
+        List<Object> describeData = this.getDescibeData(uuid);
+        if (describeData == null) {
+            describeData = new ArrayList<Object>();
+        }
+        NamedCollection<KeyValueDescibeData> keyValueDescibeData = extractKVP(result, "KEY", "VALUE");
+        describeData.add(keyValueDescibeData); 
+        this.setDescibeData(uuid, describeData);
+    }
+
+    /**
+     * @param result
+     * @return
+     */
+    protected NamedCollection<KeyValueDescibeData> extractKVP(Collection<Result> result,
+                                                              String keyid,
+                                                              String valueid) {
+        Iterator<Result> rit = result.iterator();
+        int dataSize = (this.dataNoSelect ? result.size()+1 : result.size());
+        
+        NamedCollection<KeyValueDescibeData> keyValueDescibeData = new NamedArrayList<KeyValueDescibeData>(
+                this.dataName, dataSize);
+        keyValueDescibeData.setMultiSelect(this.dataMultiSelect);
+        
+        if (this.dataNoSelect){
+            keyValueDescibeData.add(new DefaultKeyValueDescribeData(
+                NODATASELECTIONKEY,
+                "No Selection",
+                getID()
+            ));
+        }
+
+        boolean initialized = false;
+        int     keyPos      = 0;
+        int     valuePos    = 1;
+        String  previousKey = null;
+
+        while (rit.hasNext()) {
+            Result resultValue = rit.next();
+            if (!initialized){
+                keyPos = resultValue.getResultDescriptor().getColumnIndex(keyid);
+                valuePos = resultValue.getResultDescriptor().getColumnIndex(valueid);
+                if (valuePos < 0){
+                    valuePos = 1;
+                }
+                initialized = true;
+            }
+            String tmpKey = resultValue.getString(keyPos);
+            // TODO: FIXME: We have to do that because the arcsde does not support a distinct Query on Layers.
+            if (previousKey == null || !tmpKey.equals(previousKey)){
+                previousKey = tmpKey;
+                keyValueDescibeData.add(new DefaultKeyValueDescribeData(tmpKey, resultValue.getString(valuePos), getID()));
+            }
+        }
+        return keyValueDescibeData;
+    }
+
+    /**
+     * @see de.intevation.gnv.state.State#describe(org.w3c.dom.Document,
+     *      org.w3c.dom.Node, de.intevation.artifacts.CallMeta,
+     *      java.lang.String)
+     */
+    public void describe(
+        Document    document,
+        Node        rootNode,
+        CallContext context,
+        String      uuid
+    ) {
+        log.debug("StateBase.describe");
+        CallMeta callMeta = context.getMeta();
+
+        List<Object> descibeData = this.getDescibeData(uuid);
+        if (descibeData != null) {
+            Iterator<Object> it = descibeData.iterator();
+
+            XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
+                document,
+                ArtifactNamespaceContext.NAMESPACE_URI,
+                ArtifactNamespaceContext.NAMESPACE_PREFIX
+            );
+
+            Node staticNode = (Node) XMLUtils.xpath(
+                rootNode,
+                XPATH_STATIC_UI,
+                XPathConstants.NODE,
+                ArtifactNamespaceContext.INSTANCE
+            );
+
+            Node dynamic = (Node) XMLUtils.xpath(
+                rootNode,
+                XPATH_DYNAMIC_UI,
+                XPathConstants.NODE,
+                ArtifactNamespaceContext.INSTANCE
+            );
+
+            XMLUtils.ElementCreator xCreator = new XMLUtils.ElementCreator(
+                document,
+                XMLUtils.XFORM_URL,
+                XMLUtils.XFORM_PREFIX
+            );
+
+            while (it.hasNext()) {
+                Object o = it.next();
+                if ((!it.hasNext() && dataName != null)) {
+                    appendToDynamicNode(
+                        creator, xCreator, document, dynamic, callMeta, o);
+                }
+                else {
+                    appendToStaticNode(
+                        creator, xCreator, document, staticNode, callMeta, o);
+                }
+            }
+        }
+    }
+
+
+    protected void appendToStaticNode(
+        XMLUtils.ElementCreator artCreator,
+        XMLUtils.ElementCreator creator,
+        Document                document,
+        Node                    staticNode,
+        CallMeta                callMeta,
+        Object                  o
+    ) {
+        if (o instanceof Collection<?>) {
+            String name = null;
+            boolean multiselect = false;
+            if (o instanceof NamedCollection<?>) {
+                NamedCollection<?> nc = ((NamedCollection<?>) o);
+                name = nc.getName();
+                multiselect = nc.isMultiSelect();
+            } else {
+                Object[] names = this.inputValueNames.toArray();
+                name = names[names.length - 1].toString();
+            }
+
+            Element selectNode = creator.create(multiselect?"select":"select1");
+            creator.addAttr(selectNode, "ref", name);
+
+            Element lableNode = creator.create("label");
+            lableNode.setTextContent(RessourceFactory.getInstance()
+                    .getRessource(callMeta.getLanguages(), name, name));
+            Element choiceNode = creator.create("choices");
+
+            Collection<KeyValueDescibeData> values = (Collection<KeyValueDescibeData>) o;
+            Iterator<KeyValueDescibeData> resultIt = values.iterator();
+            while (resultIt.hasNext()) {
+                KeyValueDescibeData result = resultIt.next();
+
+                if (result.isSelected()) {
+                    artCreator.addAttr(
+                        selectNode, "state", result.getState(), true
+                    );
+
+                    Element itemNode = creator.create("item");
+
+                    creator.addAttr(itemNode, "selected", "true");
+
+                    Element choiceLableNode = creator.create("label");
+                    choiceLableNode.setTextContent(result.getValue());
+                    itemNode.appendChild(choiceLableNode);
+
+                    Element choiceValueNode = creator.create("value");
+                    choiceValueNode.setTextContent("" + result.getKey());
+                    itemNode.appendChild(choiceValueNode);
+                    choiceNode.appendChild(itemNode);
+                }
+            }
+            selectNode.appendChild(lableNode);
+            selectNode.appendChild(choiceNode);
+
+            staticNode.appendChild(selectNode);
+        }
+        else if (o instanceof MinMaxDescribeData) {
+            appendMinMaxDescribeData(
+                artCreator,
+                creator,
+                document,
+                staticNode,
+                callMeta,
+                o);
+        }
+        else if (o instanceof SingleValueDescribeData) {
+            appendSingleValueDescribeData(
+                artCreator,
+                creator,
+                document,
+                staticNode,
+                callMeta,
+                o);
+        }
+    }
+
+
+    protected void appendToDynamicNode(
+        XMLUtils.ElementCreator artCreator,
+        XMLUtils.ElementCreator creator,
+        Document                document,
+        Node                    dynamicNode,
+        CallMeta                callMeta,
+        Object                  o
+    ) {
+        if (o instanceof Collection<?>) {
+            String name = null;
+            boolean multiselect = false;
+            if (o instanceof NamedCollection<?>) {
+                NamedCollection<?> nc = ((NamedCollection<?>) o);
+                name = nc.getName();
+                multiselect = nc.isMultiSelect();
+            } else {
+                Object[] names = this.inputValueNames.toArray();
+                name = names[names.length - 1].toString();
+            } 
+
+            Element selectNode = creator.create(multiselect?"select":"select1");
+            creator.addAttr(selectNode, "ref", name);
+
+            Element lableNode = creator.create("label");
+            lableNode.setTextContent(RessourceFactory.getInstance()
+                    .getRessource(callMeta.getLanguages(), name, name));
+            Element choiceNode = creator.create("choices");
+
+            Collection<KeyValueDescibeData> values = (Collection<KeyValueDescibeData>) o;
+            Iterator<KeyValueDescibeData> resultIt = values.iterator();
+            while (resultIt.hasNext()) {
+                KeyValueDescibeData result = resultIt.next();
+                Element itemNode = creator.create("item");
+
+                if (result.isSelected()) {
+                    itemNode.setAttribute("selected", "true");
+                }
+
+                Element choiceLableNode = creator.create("label");
+                choiceLableNode.setTextContent(result.getValue());
+                itemNode.appendChild(choiceLableNode);
+
+                Element choicValueNode = creator.create("value");
+                choicValueNode.setTextContent("" + result.getKey());
+                itemNode.appendChild(choicValueNode);
+                choiceNode.appendChild(itemNode);
+            }
+            selectNode.appendChild(lableNode);
+            selectNode.appendChild(choiceNode);
+
+            dynamicNode.appendChild(selectNode);
+        }
+        else if (o instanceof MinMaxDescribeData) {
+            appendMinMaxDescribeData(
+                artCreator,
+                creator,
+                document,
+                dynamicNode,
+                callMeta,
+                o);
+        }
+        else if (o instanceof SingleValueDescribeData) {
+            appendSingleValueDescribeData(
+                artCreator,
+                creator,
+                document,
+                dynamicNode,
+                callMeta,
+                o);
+        }
+    }
+
+
+    protected void appendMinMaxDescribeData(
+        XMLUtils.ElementCreator artCreator,
+        XMLUtils.ElementCreator creator,
+        Document                document,
+        Node                    node,
+        CallMeta                callMeta,
+        Object                  o
+    ) {
+        MinMaxDescribeData minMaxDescibeData = (MinMaxDescribeData) o;
+        Object min = minMaxDescibeData.getMinValue();
+        Object max = minMaxDescibeData.getMaxValue();
+        if (min instanceof GregorianCalendar) {
+            Date d = ((GregorianCalendar) min).getTime();
+            min = DateUtils.getPatternedDateAmer(d);
+        }
+
+        if (max instanceof GregorianCalendar) {
+            Date d = ((GregorianCalendar) max).getTime();
+            max = DateUtils.getPatternedDateAmer(d);
+        }
+
+        Element groupNode = creator.create("group");
+        artCreator.addAttr(groupNode, "state", minMaxDescibeData.getState(), true);
+
+        creator.addAttr(groupNode, "ref", minMaxDescibeData.getName());
+        Element groupNodeLableNode = creator.create("label");
+        groupNodeLableNode.setTextContent(RessourceFactory
+                .getInstance().getRessource(
+                        callMeta.getLanguages(),
+                        minMaxDescibeData.getName(),
+                        minMaxDescibeData.getName()));
+        groupNode.appendChild(groupNodeLableNode);
+
+        Element inputMinNode = creator.create("input");
+        creator.addAttr(inputMinNode, "ref", MINVALUEFIELDNAME);
+        Element inputMinLableNode = creator.create("label");
+        inputMinLableNode.setTextContent(RessourceFactory
+                .getInstance().getRessource(
+                        callMeta.getLanguages(), MINVALUEFIELDNAME,
+                        MINVALUEFIELDNAME));
+        inputMinNode.appendChild(inputMinLableNode);
+
+        Element inputMinValueNode = creator.create("value");
+        inputMinValueNode.setTextContent(min.toString());
+        inputMinNode.appendChild(inputMinValueNode);
+
+        Element inputMaxNode = creator.create("input");
+        creator.addAttr(inputMaxNode, "ref", MAXVALUEFIELDNAME);
+        Element inputMaxLableNode = creator.create("label");
+        inputMaxLableNode.setTextContent(RessourceFactory
+                .getInstance().getRessource(
+                        callMeta.getLanguages(), MAXVALUEFIELDNAME,
+                        MAXVALUEFIELDNAME));
+        inputMaxNode.appendChild(inputMaxLableNode);
+
+        Element inputMaxValueNode = creator.create("value");
+        inputMaxValueNode.setTextContent(max.toString());
+        inputMaxNode.appendChild(inputMaxValueNode);
+
+        groupNode.appendChild(inputMinNode);
+        groupNode.appendChild(inputMaxNode);
+
+        node.appendChild(groupNode);
+    }
+
+
+    protected void appendSingleValueDescribeData(
+        XMLUtils.ElementCreator artCreator,
+        XMLUtils.ElementCreator creator,
+        Document                document,
+        Node                    node,
+        CallMeta                callMeta,
+        Object                  o
+    ) {
+        SingleValueDescribeData svdb = (SingleValueDescribeData) o;
+
+        Element groupNode = creator.create("group");
+        artCreator.addAttr(groupNode, "state", svdb.getState(), true);
+        creator.addAttr(groupNode, "ref",  svdb.getName());
+
+        Element groupNodeLableNode = creator.create("label");
+        groupNodeLableNode.setTextContent(RessourceFactory
+                .getInstance().getRessource(
+                        callMeta.getLanguages(),
+                        svdb.getName(),
+                        svdb.getName()));
+        groupNode.appendChild(groupNodeLableNode);
+
+        Element inputNode = creator.create("input");
+        creator.addAttr(inputNode, "ref", svdb.getName());
+
+        Element inputLableNode = creator.create("label");
+        inputLableNode.setTextContent("");
+        inputNode.appendChild(inputLableNode);
+
+        Element inputValueNode = creator.create("value");
+        inputValueNode.setTextContent(svdb.getValue());
+        inputNode.appendChild(inputValueNode);
+
+        groupNode.appendChild(inputNode);
+
+        node.appendChild(groupNode);
+    }
+
+    /**
+     * @see de.intevation.gnv.state.State#getDescibeData()
+     */
+    protected List<Object> getDescibeData(String uuid) {
+        if (CacheFactory.getInstance().isInitialized()) {
+            String key = uuid + DESCRIBEDATAKEY;
+            log.debug("Hash for Queryelements: " + key);
+            net.sf.ehcache.Element value = CacheFactory.getInstance().getCache().get(key);
+            if (value != null) {
+                return (List<Object>) (value.getObjectValue());
+            }
+        }
+        return null;
+    }
+    
+    /**
+     * @see de.intevation.gnv.state.State#getDescibeData()
+     */
+    protected void setDescibeData(String uuid, List<Object> describeData) {
+        
+        if (CacheFactory.getInstance().isInitialized()) {
+            String key = uuid + DESCRIBEDATAKEY;
+            log.debug("Hash for Queryelements: " + key);
+            CacheFactory.getInstance().getCache().put(new net.sf.ehcache.Element(key, describeData));
+        }
+    }
+
+    public Map<String, InputData> inputData() {
+        return inputData;
+    }
+
+    /**
+     * @see de.intevation.gnv.state.State#getInputData()
+     */
+    public Collection<InputData> getInputData() throws StateException {
+        return this.inputData != null ? this.inputData.values() : null;
+    }
+
+    public void endOfLife(Object globalContext) {
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8: