/**
    * Copyright 2005-2014 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl2.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.rice.krad.uif.container;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.krad.datadictionary.parse.BeanTag;
  import org.kuali.rice.krad.datadictionary.parse.BeanTagAttribute;
  import org.kuali.rice.krad.datadictionary.parse.BeanTags;
  import org.kuali.rice.krad.uif.UifConstants;
  import org.kuali.rice.krad.uif.component.BindingInfo;
  import org.kuali.rice.krad.uif.component.Component;
  import org.kuali.rice.krad.uif.component.DataBinding;
  import org.kuali.rice.krad.uif.control.CheckboxControl;
  import org.kuali.rice.krad.uif.control.Control;
  import org.kuali.rice.krad.uif.control.SelectControl;
  import org.kuali.rice.krad.uif.control.TextControl;
  import org.kuali.rice.krad.uif.element.Action;
  import org.kuali.rice.krad.uif.element.Image;
  import org.kuali.rice.krad.uif.element.Label;
  import org.kuali.rice.krad.uif.element.Link;
  import org.kuali.rice.krad.uif.element.Message;
  import org.kuali.rice.krad.uif.field.DataField;
  import org.kuali.rice.krad.uif.field.Field;
  import org.kuali.rice.krad.uif.field.FieldGroup;
  import org.kuali.rice.krad.uif.field.InputField;
  import org.kuali.rice.krad.uif.lifecycle.ViewLifecycle;
  import org.kuali.rice.krad.uif.lifecycle.ViewLifecycleUtils;
  import org.kuali.rice.krad.uif.util.ComponentUtils;
  import org.kuali.rice.krad.uif.util.LifecycleElement;
  import org.kuali.rice.krad.uif.util.ObjectPropertyUtils;
  import org.kuali.rice.krad.uif.view.ExpressionEvaluator;
  import org.kuali.rice.krad.uif.view.View;
  import org.kuali.rice.krad.uif.widget.Inquiry;
  import org.kuali.rice.krad.uif.widget.RichTable;
  import org.kuali.rice.krad.uif.widget.Tooltip;
  import org.kuali.rice.krad.util.KRADConstants;
  import org.kuali.rice.krad.util.KRADUtils;
  import org.kuali.rice.krad.web.form.UifFormBase;
  
  /**
   * LightTable is a light-weight collection table implementation that supports a subset of features,
   * Current known supported features are:
   *
   * <ul>
   * <li>DataField</li>
   * <li>InputField with TextControl, CheckboxControl, or single SelectControl</li>
   * <li>MessageField</li>
   * <li>LinkField</li>
   * <li>ActionField</li>
   * <li>ImageField</li>
   * <li>most RichTable options</li>
   * <li>FieldGroup containing only Actions, Image, Messages, or Links</li>
   * <li>SpringEL for String properties on supported components only</li>
   * <li>SpringEL specifically for the render property</li>
   * </ul>
   *
   * Other features are not guaranteed to work, but may work at your own risk.  The intent of this table is to be a
   * light-weight alternative to the fully featured table already available in KRAD and it is more suited to displaying
   * large sets of simple data to the user.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  @BeanTags({@BeanTag(name = "lightTable", parent = "Uif-LightTableGroup"),
          @BeanTag(name = "lightTableSection", parent = "Uif-LightTableSection"),
          @BeanTag(name = "lightTableSubSection", parent = "Uif-LightTableSubSection")})
  public class LightTable extends GroupBase implements DataBinding {
      private static final long serialVersionUID = -8930885219866835711L;
  
      private static final String VALUE_TOKEN = "@v@";
      private static final String EXPRESSION_TOKEN = "@e@";
      private static final String RENDER = "render";
      private static final String ID_TOKEN = "@id@";
      private static final String A_TOKEN = "@";
      private static final String ROW_CLASS = "@rowClass@";
      private static final String SORT_VALUE = "@sortVal";
      private static final String SEPARATOR = "@@@";
  
      private String propertyName;
     private BindingInfo bindingInfo;
     private List<Label> headerLabels;
     private RichTable richTable;
     private Map<String, String> conditionalRowCssClasses;
 
     private Map<String, String> expressionConversionMap;
     private List<String> initialComponentIds;
     private Map<String, String> renderIdExpressionMap;
     private boolean emptyTable;
     private String currentColumnValue;
 
     /**
      * LightTable constructor
      */
     public LightTable() {
         expressionConversionMap = new HashMap<String, String>();
         initialComponentIds = new ArrayList<String>();
         renderIdExpressionMap = new HashMap<String, String>();
     }
 
     /**
      * Initialization override that sets up DataField value placeholders for parsing and populates the
      * expressionConversionMap
      */
     @Override
     public void performInitialization(Object model) {
         super.performInitialization(model);
         richTable.setForceLocalJsonData(true);
 
         //init binding info
         if (bindingInfo != null) {
             bindingInfo.setDefaults(ViewLifecycle.getView(), getPropertyName());
         }
         
         List<? extends Component> items = getItems();
         
         ComponentUtils.clearAndAssignIds(items);
 
         //iterate over this collections items to initialize
         for (Component item : this.getItems()) {
             initialComponentIds.add(item.getId());
 
             //if data field, setup a forced placeholder value
             if (item instanceof DataField) {
                 ((DataField) item).setForcedValue(VALUE_TOKEN + item.getId() + VALUE_TOKEN);
             }
 
             ///populate expression map
             expressionConversionMap = buildExpressionMap(item, expressionConversionMap);
         }
     }
 
     /**
      * Builds the expression map which contains "propertyName@@@id" and the expression.  Also fills the
      * renderIdExpressionMap which contains all the component ids and expressions for render conditions, and overrides
      * ids with a placeholder id.  This method is recursive for child components which match certain supported types.
      *
      * @param item the item to iterate on
      * @param expressionMap the map holding the expressions for the items of this collection
      * @return the expressionMap with expressions populated
      */
     protected Map<String, String> buildExpressionMap(Component item, Map<String, String> expressionMap) {
         if (item == null) {
             return expressionMap;
         }
 
         List<String> toRemove = new ArrayList<String>();
 
         if (item.getExpressionGraph() != null && !item.getExpressionGraph().isEmpty()) {
             for (String name : item.getExpressionGraph().keySet()) {
                 processExpression(name, item, expressionMap, toRemove);
             }
         }
 
         //id placeholder
         item.setId(ID_TOKEN + item.getId() + ID_TOKEN);
 
         if (item instanceof Group) {
             ((Group) item).getLayoutManager().setId(ID_TOKEN + ((Group) item).getLayoutManager().getId() + ID_TOKEN);
         }
 
         expressionMap = addChildExpressions(ViewLifecycleUtils.getElementsForLifecycle(item).values(), expressionMap);
 
         for (String name : toRemove) {
             item.getExpressionGraph().remove(name);
         }
 
         return expressionMap;
     }
 
     /**
      * Process the expression for the item by putting placeholder values in for String properties and adding markers
      * for render expressions to the component; adds the original expression to the expressionMap
      *
      * @param name the property name
      * @param item the component this expressio is on
      * @param expressionMap the map to add expressions to
      * @param toRemove the property name is added this map to be removed later
      */
     public void processExpression(String name, Component item, Map<String, String> expressionMap,
             List<String> toRemove) {
         Class<?> clazz = ObjectPropertyUtils.getPropertyType(item, name);
         if (clazz == null) {
             return;
         }
 
         if (clazz.isAssignableFrom(String.class)) {
             //add expressions for string properties only
             expressionMap.put(name + SEPARATOR + item.getId(), item.getExpressionGraph().get(name));
             toRemove.add(name);
             ObjectPropertyUtils.setPropertyValue(item, name,
                     EXPRESSION_TOKEN + name + SEPARATOR + item.getId() + EXPRESSION_TOKEN);
 
         } else if (name.endsWith(RENDER) && clazz.isAssignableFrom(boolean.class)) {
             //setup render tokens to be able to determine where to remove content for render false, if needed
             Component renderComponent = item;
 
             //check for nested render (child element)
             if (!name.equals(RENDER)) {
                 renderComponent = ObjectPropertyUtils.getPropertyValue(item, StringUtils.removeEnd(name, ".render"));
             }
 
             //add render expression to the map
             renderIdExpressionMap.put(renderComponent.getId(), item.getExpressionGraph().get(name));
             toRemove.add(name);
 
             String renderMarker = A_TOKEN + RENDER + A_TOKEN + renderComponent.getId() + A_TOKEN;
 
             //setup pre render content token
             String pre = renderComponent.getPreRenderContent() == null ? "" : renderComponent.getPreRenderContent();
             renderComponent.setPreRenderContent(renderMarker + pre);
 
             //setup post render content token
             String post = renderComponent.getPostRenderContent() == null ? "" : renderComponent.getPostRenderContent();
             renderComponent.setPostRenderContent(post + renderMarker);
 
             //force render to true
             ObjectPropertyUtils.setPropertyValue(item, name, true);
         }
     }
 
     /**
      * Add expressions to the expression map for nested components of specific types
      *
      * @param components the child components
      * @param expressionMap the map to add expressions to
      * @return the map with child component expressions added
      */
     protected Map<String, String> addChildExpressions(Collection<? extends LifecycleElement> components,
             Map<String, String> expressionMap) {
         for (LifecycleElement comp : components) {
             if (comp != null && (comp instanceof Action
                     || comp instanceof Image
                     || comp instanceof Message
                     || comp instanceof Link
                     || comp instanceof Inquiry
                     || comp instanceof Group
                     || comp instanceof Tooltip
                     || comp instanceof InputField
                     || comp instanceof CheckboxControl
                     || comp instanceof TextControl
                     || comp instanceof SelectControl)) {
                 expressionMap = buildExpressionMap((Component) comp, expressionMap);
             }
         }
 
         return expressionMap;
     }
 
     /**
      * performFinalize override corrects the binding path for the DataFields and turns off rendering on some components
      */
     @Override
     public void performFinalize(Object model, LifecycleElement parent) {
         super.performFinalize(model, parent);
 
         headerLabels = new ArrayList<Label>();
         for (Component item : this.getItems()) {
             //get the header labels
             if (item instanceof Field) {
                 headerLabels.add(ComponentUtils.copy(((Field) item).getFieldLabel()));
                 ((Field) item).getFieldLabel().setRender(false);
             } else {
                 headerLabels.add(null);
             }
 
             if (item instanceof FieldGroup) {
                 ((FieldGroup) item).getGroup().setValidationMessages(null);
 
             }
 
             if (item instanceof DataField) {
                 ((DataField) item).getBindingInfo().setBindByNamePrefix(this.getBindingInfo().getBindingPath() + "[0]");
             }
         }
 
         Object collectionValue = ObjectPropertyUtils.getPropertyValue(model, bindingInfo.getBindingPath());
 
         //set emptyTable true if null, empty, or not valid collection
         if (collectionValue == null || !(collectionValue instanceof Collection) ||
                 ((Collection<?>) collectionValue).isEmpty()) {
             emptyTable = true;
         }
     }
 
     /**
      * Build the rows from the rowTemplate passed in.  This method uses regex to locate pieces of the row that need
      * to be replaced with row specific content per row.
      *
      * @param view the view instance the table is being built within
      * @param rowTemplate the first row of the collection in html generated from the ftl
      * @param model the model
      */
     public void buildRows(View view, String rowTemplate, UifFormBase model) {
         if (StringUtils.isBlank(rowTemplate)) {
             return;
         }
 
         rowTemplate = StringUtils.removeEnd(rowTemplate, ",");
         rowTemplate = rowTemplate.replace("\n", "");
         rowTemplate = rowTemplate.replace("\r", "");
 
         StringBuffer rows = new StringBuffer();
         List<Object> collectionObjects = ObjectPropertyUtils.getPropertyValue(model, bindingInfo.getBindingPath());
 
         //uncheck any checked checkboxes globally for this row
         rowTemplate = rowTemplate.replace("checked=\"checked\"", "");
 
         //init token patterns
         Pattern idPattern = Pattern.compile(ID_TOKEN + "(.*?)" + ID_TOKEN);
         Pattern expressionPattern = Pattern.compile(EXPRESSION_TOKEN + "(.*?)" + EXPRESSION_TOKEN);
 
         ExpressionEvaluator expressionEvaluator = ViewLifecycle.getExpressionEvaluator();
         expressionEvaluator.initializeEvaluationContext(model);
 
         int lineIndex = 0;
         for (Object obj : collectionObjects) {
             //add line index to all ids
             String row = idPattern.matcher(rowTemplate).replaceAll("$1" + UifConstants.IdSuffixes.LINE + lineIndex);
 
             //create the expanded context
             Map<String, Object> expandedContext = new HashMap<String, Object>();
             expandedContext.put(UifConstants.ContextVariableNames.LINE, obj);
             expandedContext.put(UifConstants.ContextVariableNames.INDEX, lineIndex);
             expandedContext.put(UifConstants.ContextVariableNames.VIEW, view);
 
             currentColumnValue = "";
 
             int itemIndex = 0;
             for (Component item : this.getItems()) {
                 //determine original id for this component
                 String originalId = initialComponentIds.get(itemIndex);
 
                 //special DataField handling
                 row = handleDataFieldInRow(item, obj, row, lineIndex, originalId);
 
                 //special InputField handling
                 row = handleInputFieldInRow(item, obj, row, lineIndex, originalId);
 
                 //add item context
                 if (item.getContext() != null) {
                     expandedContext.putAll(item.getContext());
                 }
 
                 //evaluate expressions found by the pattern
                 row = evaluateAndReplaceExpressionValues(row, lineIndex, model, expandedContext, expressionPattern,
                         expressionEvaluator);
 
                 if (currentColumnValue == null) {
                     currentColumnValue = "";
                 }
 
                 row = row.replace(SORT_VALUE + itemIndex + A_TOKEN, currentColumnValue);
 
                 itemIndex++;
             }
 
             // get rowCss class
             boolean isOdd = lineIndex % 2 == 0;
             String rowCss = KRADUtils.generateRowCssClassString(conditionalRowCssClasses, lineIndex, isOdd,
                     expandedContext, expressionEvaluator);
 
             row = row.replace("\"", "\\\"");
             row = row.replace(ROW_CLASS, rowCss);
             row = "{" + row + "},";
 
             //special render property expression handling
             row = evaluateRenderExpressions(row, lineIndex, model, expandedContext, expressionEvaluator);
 
             //append row
             rows.append(row);
             lineIndex++;
         }
 
         StringBuffer tableToolsColumnOptions = new StringBuffer("[");
         for (int index = 0; index < this.getItems().size(); index++) {
             String colOptions = richTable.constructTableColumnOptions(index, true, false, String.class, null);
             tableToolsColumnOptions.append(colOptions + " , ");
         }
 
         String aoColumnDefs = StringUtils.removeEnd(tableToolsColumnOptions.toString(), " , ") + "]";
         Map<String, String> rtTemplateOptions = richTable.getTemplateOptions();
         
         if (rtTemplateOptions == null) {
             richTable.setTemplateOptions(rtTemplateOptions = new HashMap<String, String>());
         }
         
         rtTemplateOptions.put(UifConstants.TableToolsKeys.AO_COLUMN_DEFS, aoColumnDefs);
 
         // construct aaData option to set data in dataTable options (speed enhancement)
         String aaData = StringUtils.removeEnd(rows.toString(), ",");
         aaData = "[" + aaData + "]";
         aaData = aaData.replace(KRADConstants.QUOTE_PLACEHOLDER, "\"");
 
         //set the aaData option on datatable for faster rendering
         rtTemplateOptions.put(UifConstants.TableToolsKeys.AA_DATA, aaData);
 
         //make sure deferred rendering is forced whether set or not
         rtTemplateOptions.put(UifConstants.TableToolsKeys.DEFER_RENDER,
                 UifConstants.TableToolsValues.TRUE);
     }
 
     /**
      * Evaluate expressions and replace content found by the expressionPattern in the row
      *
      * @param row the row being modified
      * @param index the line index
      * @param model the model
      * @param expandedContext the context to evaluate expressions against
      * @param expressionPattern the expression pattern used to find expression tokens for value replacement
      * @param expressionEvaluator the expression service to use for evaluation
      * @return the modified row
      */
     protected String evaluateAndReplaceExpressionValues(String row, int index, Object model,
             Map<String, Object> expandedContext, Pattern expressionPattern, ExpressionEvaluator expressionEvaluator) {
 
         Matcher matcher = expressionPattern.matcher(row);
 
         while (matcher.find()) {
             String matchingGroup = matcher.group(1);
             String expression = expressionConversionMap.get(matchingGroup);
 
             //adjust prefix for evaluation
             expression = expression.replace(UifConstants.LINE_PATH_BIND_ADJUST_PREFIX,
                     this.getBindingInfo().getBindingPath() + "[" + index + "].");
 
             //get expression result
             Object value = expressionEvaluator.evaluateExpressionTemplate(expandedContext, expression);
 
             if (value != null) {
                 row = row.replace(matcher.group(), value.toString());
             } else {
                 row = row.replace(matcher.group(), "");
             }
         }
 
         return row;
     }
 
     /**
      * Evaluates the render expressions for the row and removes the content if render is evaluated false
      *
      * @param row the row being modified
      * @param index the line index
      * @param model the model
      * @param expandedContext the context to evaluate expressions against
      * @param expressionEvaluator the expression service to use for evaluation
      * @return the modified row
      */
     protected String evaluateRenderExpressions(String row, int index, Object model, Map<String, Object> expandedContext,
             ExpressionEvaluator expressionEvaluator) {
         for (String id : renderIdExpressionMap.keySet()) {
             String expression = renderIdExpressionMap.get(id);
 
             //adjust prefix for evaluation
             expression = expression.replace(UifConstants.LINE_PATH_BIND_ADJUST_PREFIX,
                     this.getBindingInfo().getBindingPath() + "[" + index + "].");
 
             //get expression result
             Object value = expressionEvaluator.evaluateExpressionTemplate(expandedContext, expression);
 
             String wrap = A_TOKEN + RENDER + A_TOKEN + id + A_TOKEN;
 
             if (value != null && value instanceof String && Boolean.parseBoolean((String) value) == false) {
                 //do not render this component - remove content between render wrappers
                 row = row.replaceAll(wrap + "(.|\\s)*?" + wrap, "");
             } else {
                 //remove render wrappers only - keep content
                 row = row.replaceAll(wrap, "");
             }
         }
 
         return row;
     }
 
     /**
      * Special handling of the DataField in the row, replaces necessary content with row specific content
      *
      * @param item the item being processed
      * @param obj the row's object model
      * @param row the row in html
      * @param index the current row index
      * @param originalId the original id of the component item
      * @return the updated row
      */
     protected String handleDataFieldInRow(Component item, Object obj, String row, int index, String originalId) {
         if (!(item instanceof DataField)) {
             return row;
         }
 
         String currentValue = ObjectPropertyUtils.getPropertyValueAsText(obj, ((DataField) item).getPropertyName());
 
         if (currentValue == null) {
             currentValue = "";
         }
 
         //for readOnly DataFields replace the value marked with the value on the current object
         row = row.replaceAll(VALUE_TOKEN + originalId + VALUE_TOKEN, currentValue);
         currentColumnValue = currentValue;
 
         Inquiry dataFieldInquiry = ((DataField) item).getInquiry();
         if (dataFieldInquiry != null && dataFieldInquiry.getInquiryParameters() != null
                 && dataFieldInquiry.getInquiryLink() != null) {
 
             String inquiryLinkId = dataFieldInquiry.getInquiryLink().getId().replace(ID_TOKEN, "")
                     + UifConstants.IdSuffixes.LINE + index;
 
             // process each Inquiry link parameter by replacing each in the inquiry url with their current value
             for (String key : dataFieldInquiry.getInquiryParameters().keySet()) {
                 String name = dataFieldInquiry.getInquiryParameters().get(key);
 
                 //omit the binding prefix from the key to get the path relative to the current object
                 key = key.replace(((DataField) item).getBindingInfo().getBindByNamePrefix() + ".", "");
 
                 if (ObjectPropertyUtils.isReadableProperty(obj, key)) {
                     String value = ObjectPropertyUtils.getPropertyValueAsText(obj, key);
                     row = row.replaceFirst("(" + inquiryLinkId + "(.|\\s)*?" + name + ")=.*?([&|\"])",
                             "$1=" + value + "$3");
                 }
             }
         }
 
         return row;
     }
 
     /**
      * Special handling of the InputField in the row, replaces necessary content with row specific content
      *
      * @param item the item being processed
      * @param obj the row's object model
      * @param row the row in html
      * @param index the current row index
      * @param originalId the original id of the component item
      * @return the updated row
      */
     protected String handleInputFieldInRow(Component item, Object obj, String row, int index, String originalId) {
         if (!(item instanceof InputField) || ((InputField) item).getControl() == null) {
             return row;
         }
 
         Control control = ((InputField) item).getControl();
 
         //updates the name path to the current path for any instance this item's propertyName with
         //a collection binding prefix
         row = row.replace("name=\"" + ((InputField) item).getBindingInfo().getBindingPath() + "\"",
                 "name=\"" + this.getBindingInfo().getBindingPath() + "[" + index + "]." + ((InputField) item)
                         .getPropertyName() + "\"");
 
         Object value = ObjectPropertyUtils.getPropertyValue(obj, ((InputField) item).getPropertyName());
         String stringValue = "";
 
         if (value == null) {
             stringValue = "";
         } else if (value.getClass().isAssignableFrom(boolean.class)) {
             stringValue = "" + value;
         } else if (!(value instanceof Collection)) {
             stringValue = ObjectPropertyUtils.getPropertyValueAsText(obj, ((InputField) item).getPropertyName());
         }
 
         String controlId = originalId + "_line" + index + UifConstants.IdSuffixes.CONTROL;
 
         if (control instanceof CheckboxControl && stringValue.equalsIgnoreCase("true")) {
             //CheckboxControl handling - only replace if true with a checked attribute appended
             row = row.replaceAll("(id(\\s)*?=(\\s)*?\"" + controlId + "\")", "$1 checked=\"checked\" ");
         } else if (control instanceof TextControl) {
             //TextControl handling - replace with
             row = row.replaceAll("(id(\\s)*?=(\\s)*?\"" + controlId + "\"(.|\\s)*?value=\")(.|\\s)*?\"",
                     "$1" + stringValue + "\"");
         } else if (control instanceof SelectControl && !((SelectControl) control).isMultiple()) {
             //SelectControl handling (single item only)
             Pattern pattern = Pattern.compile("<select(\\s)*?id(\\s)*?=(\\s)*?\"" + controlId + "\"(.|\\s)*?</select>");
             Matcher matcher = pattern.matcher(row);
             String replacement = "";
 
             if (matcher.find()) {
                 //remove selected from select options
                 String selected = "selected=\"selected\"";
                 replacement = matcher.group().replace(selected, "");
 
                 //put selected on only the selected option
                 String selectedValue = "value=\"" + stringValue + "\"";
                 replacement = replacement.replace(selectedValue, selectedValue + " " + selected);
             }
 
             //replace the old select tag with the old one
             if (StringUtils.isNotBlank(replacement)) {
                 row = matcher.replaceAll(replacement);
             }
         }
 
         currentColumnValue = stringValue;
 
         return row;
     }
 
     /**
      * The propertyName of the list backing this collection
      *
      * @return the propertyName of this collection
      */
     @BeanTagAttribute
     public String getPropertyName() {
         return propertyName;
     }
 
     /**
      * Set the propertyName
      *
      * @param propertyName
      */
     public void setPropertyName(String propertyName) {
         this.propertyName = propertyName;
     }
 
     /**
      * The bindingInfo for this collection table, containg the property path and other options
      *
      * @return the bindingInfo
      */
     @BeanTagAttribute
     public BindingInfo getBindingInfo() {
         return bindingInfo;
     }
 
     /**
      * Set the bindingInfo
      *
      * @param bindingInfo
      */
     public void setBindingInfo(BindingInfo bindingInfo) {
         this.bindingInfo = bindingInfo;
     }
 
     /**
      * The labels for the header derived from the items of this collection (the fields)
      *
      * @return the header labels
      */
     public List<Label> getHeaderLabels() {
         return headerLabels;
     }
 
     /**
      * The richTable widget definition for this table for setting dataTable javascript options
      *
      * @return the RichTable widget
      */
     @BeanTagAttribute
     public RichTable getRichTable() {
         return richTable;
     }
 
     /**
      * Set the richTable widget
      *
      * @param richTable
      */
     public void setRichTable(RichTable richTable) {
         this.richTable = richTable;
     }
 
     /**
      * The row css classes for the rows of this layout
      *
      * <p>To set a css class on all rows, use "all" as a key.  To set a
      * class for even rows, use "even" as a key, for odd rows, use "odd".
      * Use a one-based index to target a specific row by index.  SpringEL can be
      * used as a key and the expression will be evaluated; if evaluated to true, the
      * class(es) specified will be applied.</p>
      *
      * @return a map which represents the css classes of the rows of this layout
      */
     @BeanTagAttribute
     public Map<String, String> getConditionalRowCssClasses() {
         return conditionalRowCssClasses;
     }
 
     /**
      * Set the conditionalRowCssClasses
      *
      * @param conditionalRowCssClasses
      */
     public void setConditionalRowCssClasses(Map<String, String> conditionalRowCssClasses) {
         this.conditionalRowCssClasses = conditionalRowCssClasses;
     }
 
     /**
      * True if this table is empty, false otherwise
      *
      * @return true if the collection backing this table is empty
      */
     public boolean isEmptyTable() {
         return emptyTable;
     }
 
     public void setHeaderLabels(List<Label> headerLabels) {
         this.headerLabels = headerLabels;
     }
 
     public void setExpressionConversionMap(Map<String, String> expressionConversionMap) {
         this.expressionConversionMap = expressionConversionMap;
     }
 
     public Map<String, String> getExpressionConversionMap() {
         return expressionConversionMap;
     }
 
     public List<String> getInitialComponentIds() {
         return initialComponentIds;
     }
 
     public Map<String, String> getRenderIdExpressionMap() {
         return renderIdExpressionMap;
     }
 
     public void setInitialComponentIds(List<String> initialComponentIds) {
         this.initialComponentIds = initialComponentIds;
     }
 
     public void setRenderIdExpressionMap(Map<String, String> renderIdExpressionMap) {
         this.renderIdExpressionMap = renderIdExpressionMap;
     }
 
     public void setEmptyTable(boolean emptyTable) {
         this.emptyTable = emptyTable;
     }
 
     /**
      *
      * @return the current column value
      */
     @BeanTagAttribute(name = "currentColumnValue")
     protected String getCurrentColumnValue() {
         return currentColumnValue;
     }
 
     /**
      * Set the current column value
      *
      * @param currentColumnValue
      */
     protected void setCurrentColumnValue(String currentColumnValue) {
         this.currentColumnValue = currentColumnValue;
     }
 }