Java tutorial
/* This file is part of Cyclos (www.cyclos.org). A project of the Social Trade Organisation (www.socialtrade.org). Cyclos is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. Cyclos is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Cyclos; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package nl.strohalm.cyclos.taglibs; import java.io.IOException; import java.io.StringWriter; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.List; import javax.servlet.jsp.JspException; import javax.servlet.jsp.PageContext; import javax.servlet.jsp.tagext.TagSupport; import nl.strohalm.cyclos.entities.customization.fields.CustomField; import nl.strohalm.cyclos.entities.customization.fields.CustomField.Type; import nl.strohalm.cyclos.entities.customization.fields.CustomFieldPossibleValue; import nl.strohalm.cyclos.entities.customization.fields.CustomFieldValue; import nl.strohalm.cyclos.entities.customization.fields.Validation; import nl.strohalm.cyclos.entities.members.Member; import nl.strohalm.cyclos.entities.settings.LocalSettings.MemberResultDisplay; import nl.strohalm.cyclos.services.settings.SettingsService; import nl.strohalm.cyclos.utils.MessageHelper; import nl.strohalm.cyclos.utils.RangeConstraint; import nl.strohalm.cyclos.utils.SpringHelper; import nl.strohalm.cyclos.utils.StringHelper; import nl.strohalm.cyclos.utils.conversion.IdConverter; import org.apache.commons.collections.CollectionUtils; import org.apache.commons.collections.Predicate; import org.apache.commons.lang.ObjectUtils; import org.apache.commons.lang.StringEscapeUtils; import org.apache.commons.lang.StringUtils; /** * Tag used to render a custom field * @author luis */ public class CustomFieldTag extends TagSupport { private static final long serialVersionUID = 1356009486707156305L; private boolean editable = true; private boolean enabled = true; private CustomField field; private String fieldName; private String styleId; private boolean search; private boolean textOnly; private String size; private Object value; private String valueName; private Collection<? extends CustomFieldValue> collection; private boolean encodeHtml = true; private MessageHelper messageHelper; private SettingsService settingsService; @Override public int doEndTag() throws JspException { try { if (field == null) { throw new JspException("Field is null on CustomFieldTag"); } // Get the field value from collection if needed if (value == null && collection != null) { for (final CustomFieldValue customValue : collection) { if (field.equals(customValue.getField())) { value = customValue; break; } } } final StringBuilder sb = new StringBuilder(); // There is a hidden that will store the field id if (StringUtils.isNotEmpty(fieldName)) { sb.append("<input type=\"hidden\" name=\"").append(fieldName).append("\" value=\"") .append(field.getId()).append("\">"); } final CustomField.Control control = field.getControl(); if (editable && !textOnly) { if (field.getType() == CustomField.Type.BOOLEAN) { if (search) { // When a boolean is on search, we use a select with true and false values renderSelect(sb); } else { // Boolean is always a check box. As it is not submitted when is not checked, we must use a hidden that will be submitted renderCheckBox(sb); } } else if (field.getType() == Type.MEMBER) { renderMemberSelect(sb); } else if (field.getType() == CustomField.Type.ENUMERATED) { final Collection<CustomFieldPossibleValue> possibleValues = field.getPossibleValues(false); if (CollectionUtils.isEmpty(possibleValues)) { // If there are no possible values, render a hidden, so it is ensured that a value will be submitted sb.append("<input type=\"hidden\" name=\"").append(valueName).append("\">"); } else { if (control == CustomField.Control.RADIO && !search) { // Render a radio group renderRadioGroup(sb); } else { // Render a select box renderSelect(sb); } } } else if (!search && field.getControl() == CustomField.Control.TEXTAREA) { renderTextarea(sb); } else if (!search && field.getControl() == CustomField.Control.RICH_EDITOR) { renderRichEditor(sb); } else { renderText(sb); } } else { renderDisplay(sb); } pageContext.getOut().write(sb.toString()); } catch (final IOException e) { throw new JspException(e); } finally { release(); } return EVAL_PAGE; } public Collection<? extends CustomFieldValue> getCollection() { return collection; } public CustomField getField() { return field; } public String getFieldName() { return fieldName; } public String getSize() { return size; } public String getStyleId() { return styleId; } public Object getValue() { return value; } public String getValueName() { return valueName; } public boolean isEditable() { return editable; } public boolean isEnabled() { return enabled; } public boolean isEncodeHtml() { return encodeHtml; } public boolean isSearch() { return search; } public boolean isTextOnly() { return textOnly; } @Override public void release() { super.release(); field = null; fieldName = null; valueName = null; value = null; collection = null; enabled = true; editable = true; search = false; textOnly = false; encodeHtml = true; size = null; styleId = null; } public void setCollection(final Collection<? extends CustomFieldValue> collection) { this.collection = collection; } public void setEditable(final boolean editable) { this.editable = editable; } public void setEnabled(final boolean enabled) { this.enabled = enabled; } public void setEncodeHtml(final boolean encodeHtml) { this.encodeHtml = encodeHtml; } public void setField(final CustomField field) { this.field = field; } public void setFieldName(final String name) { fieldName = name; } @Override public void setPageContext(final PageContext pageContext) { super.setPageContext(pageContext); messageHelper = SpringHelper.bean(pageContext.getServletContext(), MessageHelper.class); settingsService = SpringHelper.bean(pageContext.getServletContext(), SettingsService.class); } public void setSearch(final boolean search) { this.search = search; } public void setSize(final String size) { this.size = size; } public void setStyleId(final String styleId) { this.styleId = styleId; } public void setTextOnly(final boolean textOnly) { this.textOnly = textOnly; } public void setValue(final Object value) { this.value = value; } public void setValueName(final String valueField) { valueName = valueField; } private String ensureHtml(final String string) { return StringUtils.replace(StringEscapeUtils.escapeHtml(string), "\n", "<br>"); } private Member getMemberValue() { if (value instanceof CustomFieldValue) { return ((CustomFieldValue) value).getMemberValue(); } return null; } private CustomFieldPossibleValue getPossibleValue() { if (value instanceof CustomFieldValue) { return ((CustomFieldValue) value).getPossibleValue(); } return null; } /** * Return a style class for the current field size */ private String getSizeClass() { if (StringUtils.isNotEmpty(size)) { return size; } final CustomField.Size size = field == null ? null : field.getSize(); if (size == null || size == CustomField.Size.DEFAULT) { return ""; } return size.name().toLowerCase(); } private String getStringValue() { String string; if (value instanceof String) { string = (String) value; } else if (value instanceof CustomFieldValue) { string = ((CustomFieldValue) value).getValue(); } else { string = null; } if (StringUtils.isNotEmpty(field.getPattern())) { string = StringHelper.applyMask(field.getPattern(), string); } return string == null ? "" : string; } /** * Returns a collection containing all possible values which are not disabled, however, keeping the current value even when disabled */ private Collection<CustomFieldPossibleValue> removeDisabledValues(final CustomFieldPossibleValue selected, final Collection<CustomFieldPossibleValue> possibleValues) { final Collection<CustomFieldPossibleValue> result = new ArrayList<CustomFieldPossibleValue>(); for (final CustomFieldPossibleValue possibleValue : possibleValues) { boolean useField = true; if (!possibleValue.isEnabled()) { if (selected == null || !selected.equals(possibleValue)) { useField = false; } } if (useField) { result.add(possibleValue); } } return result; } private void renderCheckBox(final StringBuilder sb) throws JspException { final boolean value = Boolean.parseBoolean(getStringValue()); sb.append("<input type=\"hidden\" id=\"_value_of_").append(field.getId()).append("\" name=\"") .append(valueName).append("\" value=\"").append(value).append("\">"); sb.append("<input type=\"checkbox\" id=\"_check_of_").append(field.getId()) .append("\" class=\"checkbox\" onclick=\"if (!this.disabled){$('_value_of_").append(field.getId()) .append("').value=String(this.checked);}\""); if (!enabled) { sb.append("disabled "); } if (value) { sb.append(" checked"); } sb.append(">"); } private void renderDisplay(final StringBuilder sb) throws JspException { boolean skipEncode = false; String value; switch (field.getType()) { case ENUMERATED: try { value = getPossibleValue().getValue(); } catch (final NullPointerException e) { value = ""; } break; case BOOLEAN: final String key = "true".equals(getStringValue()) ? "global.yes" : "global.no"; value = messageHelper.message(key); break; case URL: value = getStringValue(); if (StringUtils.isNotEmpty(value)) { if (!value.contains("://")) { value = "http://" + value; } if (editable) { value = "<a href=\"" + value + "\" class=\"default\" target=\"_blank\">" + value + "</a>"; skipEncode = true; } } break; case MEMBER: final Member member = getMemberValue(); if (member == null) { value = null; } else { if (editable) { // Editable - render a profile link final StringWriter sw = new StringWriter(); pageContext.pushBody(sw); final ProfileTag profileTag = new ProfileTag(); profileTag.setPageContext(pageContext); profileTag.setElementId(member.getId()); profileTag.doStartTag(); profileTag.doEndTag(); pageContext.popBody(); value = sw.toString(); skipEncode = true; } else { // Just print out the member username or name, according to the settings final MemberResultDisplay memberResultDisplay = settingsService.getLocalSettings() .getMemberResultDisplay(); if (memberResultDisplay == MemberResultDisplay.USERNAME) { value = member.getUsername(); } else { value = member.getName(); } } } break; default: value = getStringValue(); break; } if (!textOnly) { sb.append("<input type=\"text\" name=\"").append(valueName).append("\" value=\""); } value = StringUtils.trimToEmpty(value); String script = null; if (!skipEncode && encodeHtml && field.getControl() != CustomField.Control.RICH_EDITOR) { value = StringUtils.replace(StringUtils.replace( StringUtils.replace(StringUtils.replace(value, "\"", """), "<", "<"), ">", ">"), "\n", "<br>"); } else if (field.getControl() == CustomField.Control.RICH_EDITOR) { Integer lastRichTextSeq = (Integer) pageContext.getRequest().getAttribute("lastRichTextSeq"); if (lastRichTextSeq == null) { lastRichTextSeq = 0; } lastRichTextSeq++; pageContext.getRequest().setAttribute("lastRichTextSeq", lastRichTextSeq); final String containerId = "valueContainer_" + lastRichTextSeq; value = "<div id='" + containerId + "' style='display:none;overflow:auto'>" + value + "</div>"; script = "<script>\nEvent.observe(self, 'load', function() {\n" + " var " + containerId + " = $('" + containerId + "');\n" + containerId + ".style.width = $(" + containerId + ".parentElement).getDimensions().width + 'px';\n" + containerId + ".show();\n" + "});\n</script>\n"; } sb.append(value); if (!textOnly) { sb.append("\" class=\"" + getSizeClass() + " readonly InputBoxDisabled\" readonly>\n"); } if (script != null) { sb.append(script); } } private void renderMemberSelect(final StringBuilder sb) { final Member memberValue = getMemberValue(); final String idFieldId = "memberId_field_" + field.getId(); final String usernameFieldId = "memberUsername_field_" + field.getId(); final String usernameDivId = "membersByUsername_field_" + field.getId(); final String nameFieldId = "memberName_field_" + field.getId(); final String nameDivId = "membersByName_field_" + field.getId(); final boolean requiredField = field != null && field.getValidation().isRequired(); final String className = enabled ? "InputBoxEnabled" : "InputBoxDisabled"; sb.append("<table class='nested' width='100%'>\n"); sb.append(" <tr>\n"); sb.append(" <td class='label' width='25%'>").append(messageHelper.message("member.username")) .append("</td>\n"); sb.append(" <td>\n"); sb.append(" <input type='hidden' id='").append(idFieldId).append("' name='").append(valueName) .append("' value='").append(memberValue == null ? "" : memberValue.getId()).append("'>\n"); sb.append(" <input id='").append(usernameFieldId).append("' class='full ").append(className) .append("' ").append(enabled ? "" : "disabled='disabled'").append(" value='") .append(memberValue == null ? "" : StringEscapeUtils.escapeHtml(memberValue.getUsername())) .append("'>\n"); sb.append(" <div id='").append(usernameDivId).append("' class='autoComplete'>\n"); sb.append(" </td>\n"); if (requiredField) { sb.append( "<td rowspan='2' width='10px' style='vertical-align:top'> <span class='fieldDecoration' style='vertical-align:top'>*</span>"); } sb.append(" </tr>\n"); sb.append(" <tr>\n"); sb.append(" <td class='label'>").append(messageHelper.message("member.name")).append("</td>\n"); sb.append(" <td>\n"); sb.append(" <input id='").append(nameFieldId).append("' class='full ").append(className) .append("' ").append(enabled ? "" : "disabled='disabled'").append(" value='") .append(memberValue == null ? "" : StringEscapeUtils.escapeHtml(memberValue.getName())) .append("'>\n"); sb.append(" <div id='").append(nameDivId).append("' class='autoComplete'>\n"); sb.append(" </td>\n"); sb.append(" </tr>\n"); sb.append("</table>\n"); sb.append("<script>\n"); sb.append("prepareForMemberAutocomplete('").append(usernameFieldId).append("','").append(usernameDivId) .append("',").append("{paramName:'username'},'").append(idFieldId).append("','") .append(usernameFieldId).append("','").append(nameFieldId).append("');\n"); sb.append("prepareForMemberAutocomplete('").append(nameFieldId).append("','").append(nameDivId).append("',") .append("{paramName:'name'},'").append(idFieldId).append("','").append(usernameFieldId) .append("','").append(nameFieldId).append("');\n"); sb.append("</script>\n"); } private void renderRadioGroup(final StringBuilder sb) throws JspException { final CustomFieldPossibleValue value = getPossibleValue(); sb.append("<table border='0' cellpadding='0' cellspacing='0' style='border-spacing:0px;'>\n"); final boolean requiredField = field != null && field.getValidation().isRequired(); sb.append("<tr>\n"); int i = 0; int controlsPerRow = Integer.MAX_VALUE; if (field != null && field.getSize() != null) { switch (field.getSize()) { case TINY: controlsPerRow = 1; break; case SMALL: controlsPerRow = 2; break; case MEDIUM: controlsPerRow = 3; break; case LARGE: controlsPerRow = 4; break; } } String selectedValue = ""; final String name = "_radio_" + field.getId(); // Remove the disabled possible values, but keep the current value even if it's disabled final Collection<CustomFieldPossibleValue> possibleValues = removeDisabledValues(value, field.getPossibleValues(false)); // Check whether the default value will be used boolean useDefault = !isSearch() && this.value == null; if (this.value instanceof CustomFieldValue) { // Use on new values only final CustomFieldValue fieldValue = (CustomFieldValue) this.value; useDefault = fieldValue.isTransient(); } // Render each radio for (final CustomFieldPossibleValue possibleValue : possibleValues) { final String id = name + "_" + i; final String idAsString = String.valueOf(possibleValue.getId()); final boolean checked = ObjectUtils.equals(value, possibleValue) || (useDefault && possibleValue.isDefaultValue()); if (checked) { selectedValue = idAsString; } sb.append("<td valign='top'><input type='radio' name='").append(name).append("' id=\"").append(id) .append("\" class='radio' value='").append(idAsString).append("'") .append(enabled ? "" : " disabled").append(checked ? " checked" : ""); sb.append(" onclick=\"if (!this.disabled){$('_value_of_").append(field.getId()) .append("').value=this.value;}\""); sb.append("></td>\n"); final boolean isRequired = requiredField && i == possibleValues.size() - 1; sb.append("<td style='padding-right:5px'><label "); if (isRequired) { sb.append("class=\"required\" "); } sb.append(" for=\"").append(id).append("\">").append(possibleValue.getValue()) .append("</label></td>\n"); i++; if (i % controlsPerRow == 0) { sb.append("<tr>\n</tr>\n"); } } sb.append("</tr>\n"); sb.append("</table>\n"); sb.append("<input type=\"hidden\" id=\"_value_of_").append(field.getId()).append("\" name=\"") .append(valueName).append("\" value=\"" + selectedValue + "\">\n"); } private void renderRichEditor(final StringBuilder sb) { final RichTextAreaTag tag = new RichTextAreaTag(); tag.setStyleId("richText" + getField().getId()); tag.setDisabled(!enabled); tag.setName(valueName); tag.setPageContext(pageContext); tag.setValue(getStringValue()); try { tag.doStartTag(); tag.doEndTag(); } catch (final JspException e) { throw new RuntimeException(e); } } private void renderSelect(final StringBuilder sb) throws JspException { final boolean hasChildren = CollectionUtils.isNotEmpty(field.getChildren()); final boolean hasParent = field.getParent() != null; // We show the empty label in 2 situations: search or required fields String emptyLabel = ""; if (search || field.getValidation().isRequired()) { if (search) { emptyLabel = StringUtils.trimToEmpty(field.getAllSelectedLabel()); if (StringUtils.isEmpty(emptyLabel)) { emptyLabel = messageHelper.message("global.search.all"); } } else { emptyLabel = messageHelper.message("global.select.empty"); } } final CustomFieldPossibleValue selected = getPossibleValue(); final Collection<CustomFieldPossibleValue> possibleValues = removeDisabledValues(selected, field.getPossibleValues(false)); // We will render a MultiDropDown control if we are on search for enumerated fields, and the field has no relationships if (!hasChildren && !hasParent && search && field.getType() == CustomField.Type.ENUMERATED && field.getPossibleValues(false).size() > 2) { // MultiDropDown final StringWriter temp = new StringWriter(); pageContext.pushBody(temp); final MultiDropDownTag multiSelect = new MultiDropDownTag(); multiSelect.setPageContext(pageContext); multiSelect.setName(valueName); multiSelect.setSingleField(true); multiSelect.doStartTag(); multiSelect.setEmptyLabel(emptyLabel); final OptionTag option = new OptionTag(); final List<String> values = Arrays.asList(StringUtils.trimToEmpty(getStringValue()).split(",")); for (final CustomFieldPossibleValue possibleValue : possibleValues) { final String idAsString = String.valueOf(possibleValue.getId()); option.setParent(multiSelect); option.setPageContext(pageContext); option.setValue(idAsString); option.setText(possibleValue.getValue()); option.setSelected(values.contains(idAsString)); option.doStartTag(); option.doEndTag(); } multiSelect.doEndTag(); pageContext.popBody(); sb.append(temp.toString()); } else { // Normal select or search for booleans final String id = "custom_field_select_" + field.getId(); sb.append("<select id=\"").append(id).append("\""); sb.append(" fieldId=\"").append(field.getId()).append("\""); sb.append(" fieldName=\"").append(field.getInternalName()).append("\" name=\"").append(valueName) .append('"'); if (search) { sb.append(" fieldEmptyLabel=\"").append(StringEscapeUtils.escapeHtml(emptyLabel)).append('"'); } final Validation validation = field.getValidation(); final List<String> classes = new ArrayList<String>(); if (validation != null && validation.isRequired() && !search) { classes.add("required"); } if (!enabled) { classes.add("InputBoxDisabled"); sb.append(" disabled"); } sb.append(" class=\"").append(StringUtils.join(classes.iterator(), ' ')).append("\">\n"); sb.append("<option value=''>"); sb.append(StringEscapeUtils.escapeHtml(emptyLabel)); sb.append("</option>\n"); Long initialOptionId = null; if (field.getType() == CustomField.Type.ENUMERATED) { // Render each possible value as an enumerated value CustomFieldPossibleValue value = selected; // When the value is not a PossibleValue, try to find it as String if (value == null) { final String valueAsString = getStringValue(); if (StringUtils.isNotEmpty(valueAsString)) { // The value as string is the possible value id final Long possibleValueId = IdConverter.instance().valueOf(valueAsString); value = (CustomFieldPossibleValue) CollectionUtils.find(field.getPossibleValues(false), new Predicate() { @Override public boolean evaluate(final Object obj) { final CustomFieldPossibleValue pv = (CustomFieldPossibleValue) obj; return pv.getId().equals(possibleValueId); } }); } } // As child fields have their options loaded via AJAX, the form.reset() method doesn't return it to the initial state. // Store the options if (value != null && field.getParent() != null) { initialOptionId = value.getId(); } // Check whether the default value will be used boolean useDefault = false; if (!isSearch()) { if (this.value == null) { useDefault = true; } else if (this.value instanceof CustomFieldValue) { // Use on new values only final CustomFieldValue fieldValue = (CustomFieldValue) this.value; useDefault = fieldValue.isTransient(); } } // When a field has children, store it's current value on the page scope, so that child fields can filter their possible values if (hasChildren) { pageContext.setAttribute("valueForField_" + field.getId(), value); } // Write the options for (final CustomFieldPossibleValue possibleValue : possibleValues) { final String idAsString = String.valueOf(possibleValue.getId()); sb.append("<option"); if (ObjectUtils.equals(value, possibleValue) || (useDefault && possibleValue.isDefaultValue())) { sb.append(" selected"); } sb.append(" value=\"").append(idAsString).append("\">"); sb.append(ensureHtml(possibleValue.getValue())).append("</option>\n"); } } else { // Render the options for a boolean sb.append("<option value='true'"); if (value != null && "true".equalsIgnoreCase(value.toString())) { sb.append(" selected"); } sb.append(">").append(messageHelper.message("global.yes")).append("</option>\n"); sb.append("<option value='false'"); if (value != null && "false".equalsIgnoreCase(value.toString())) { sb.append(" selected"); } sb.append(">").append(messageHelper.message("global.no")).append("</option>\n"); } sb.append("</select>\n"); if (hasChildren) { sb.append("<script>\n"); sb.append("$('").append(id).append("').onchange = function() {\n"); for (final CustomField child : field.getChildren()) { final String childId = "custom_field_select_" + child.getId(); sb.append("updateCustomFieldChildValues('").append(field.getNature()).append("', '").append(id) .append("', '").append(childId).append("');\n"); } sb.append(""); sb.append("}\n"); sb.append("Event.observe(self, 'loadi', $('").append(id).append("').onchange);\n"); sb.append("</script>\n"); } if (field.getParent() != null) { sb.append("<script>\n"); if (initialOptionId != null) { // Write the initial value id, so the form.reset will work sb.append("$('").append(id).append("').initialOptionId = \"").append(initialOptionId) .append("\";\n"); } // Write the initial options, so they will be correct on form.reset sb.append("$('").append(id).append("').initialOptions = ["); boolean first = true; for (final CustomFieldPossibleValue possibleValue : possibleValues) { if (first) { first = false; } else { sb.append(", "); } sb.append("new Option(\"").append(StringEscapeUtils.escapeJavaScript(possibleValue.getValue())) .append("\",\"").append(possibleValue.getId()).append("\")"); } sb.append("];\n"); sb.append("</script>\n"); } } } private void renderText(final StringBuilder sb) throws JspException { final List<String> classNames = new ArrayList<String>(); final Validation validation = field.getValidation(); if (validation != null && validation.isRequired() && !search) { classNames.add("required"); } final String pattern = StringUtils.trimToNull(field.getPattern()); switch (field.getType()) { case DATE: classNames.add("date"); break; case INTEGER: classNames.add("number"); break; case DECIMAL: classNames.add("float"); break; case STRING: if (pattern != null) { classNames.add("pattern"); } break; } final String sizeClass = getSizeClass(); if (StringUtils.isNotEmpty(sizeClass)) { classNames.add(sizeClass); } final String value = getStringValue(); sb.append("<input type=\"text\" fieldName=\"").append(field.getInternalName()).append("\" name=\"") .append(valueName).append("\" value=\"").append(StringEscapeUtils.escapeHtml(value)).append('"'); if (enabled) { classNames.add("InputBoxEnabled"); } else { sb.append(" readonly"); classNames.add("InputBoxDisabled"); } if (StringUtils.isNotEmpty(styleId)) { sb.append(" id=\"").append(styleId).append('"'); } if (pattern != null) { sb.append(" maskPattern=\"").append(StringEscapeUtils.escapeHtml(pattern)).append('"'); } final RangeConstraint lengthConstraint = validation == null ? null : validation.getLengthConstraint(); if (lengthConstraint != null && lengthConstraint.getMax() != null && lengthConstraint.getMax() > 0) { sb.append(" maxLength=\"").append(lengthConstraint.getMax()).append('"'); } sb.append(" class=\"").append(StringUtils.join(classNames.iterator(), ' ')).append("\">\n"); } private void renderTextarea(final StringBuilder sb) { final List<String> classNames = new ArrayList<String>(); final Validation validation = field.getValidation(); if (validation != null && validation.isRequired() && !search) { classNames.add("required"); } sb.append("<textarea rows='5' fieldId='").append(field.getId()).append("' fieldName=\"") .append(field.getInternalName()).append("\" name=\"").append(valueName).append('"'); final RangeConstraint lengthConstraint = validation == null ? null : validation.getLengthConstraint(); if (lengthConstraint != null && lengthConstraint.getMax() != null && lengthConstraint.getMax() > 0) { sb.append(" maxLength=\"").append(lengthConstraint.getMax()).append('"'); classNames.add("maxLength"); } if (enabled) { classNames.add("InputBoxEnabled"); } else { classNames.add("InputBoxDisabled"); sb.append(" readonly"); } final String sizeClass = getSizeClass(); if (StringUtils.isNotEmpty(sizeClass)) { classNames.add(sizeClass); } sb.append(" class=\"").append(StringUtils.join(classNames.iterator(), ' ')).append("\">") .append(getStringValue()).append("</textarea>"); } }