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JSF components and utilities that can be used with any JSF implementation.
This library is based on the JSF1.1 version of Tomahawk, but with minor source code and build
changes to take advantage of JSF1.2 features. A JSF1.2 implementation is required to use this
version of the Tomahawk library.
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache 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.apache.org/licenses/LICENSE-2.0
*
* 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.apache.myfaces.component.html.ext;
import java.util.Iterator;
import javax.faces.FacesException;
import javax.faces.application.FacesMessage;
import javax.faces.component.EditableValueHolder;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.el.EvaluationException;
import javax.faces.el.MethodBinding;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.myfaces.component.AltProperty;
import org.apache.myfaces.component.DataProperties;
import org.apache.myfaces.component.DisplayValueOnlyAware;
import org.apache.myfaces.component.EscapeAware;
import org.apache.myfaces.component.ForceIdAware;
import org.apache.myfaces.component.UserRoleAware;
import org.apache.myfaces.component.UserRoleUtils;
import org.apache.myfaces.component.html.util.HtmlComponentUtils;
import org.apache.myfaces.shared_tomahawk.component.DisplayValueOnlyCapable;
import org.apache.myfaces.shared_tomahawk.component.EscapeCapable;
import org.apache.myfaces.shared_tomahawk.renderkit.JSFAttr;
import org.apache.myfaces.shared_tomahawk.util.MessageUtils;
/**
* Implements the standard html selectOneRadio tag, with additional features.
*
* Supports user roles. Supports the "spread" layout value, which
* gives developer control over radio button positioning.
* See the "layout" attribute and the "radio" tag for further
* information.
*
* Unless otherwise specified, all attributes accept static values or EL expressions.
*
* @JSFComponent
* name = "t:selectOneRadio"
* class = "org.apache.myfaces.component.html.ext.HtmlSelectOneRadio"
* tagClass = "org.apache.myfaces.generated.taglib.html.ext.HtmlSelectOneRadioTag"
* @since 1.1.7
* @author Manfred Geiler (latest modification by $Author: lu4242 $)
* @version $Revision: 691856 $ $Date: 2008-09-03 21:40:30 -0500 (Wed, 03 Sep 2008) $
*/
public abstract class AbstractHtmlSelectOneRadio
extends javax.faces.component.html.HtmlSelectOneRadio
implements UserRoleAware, DisplayValueOnlyCapable,
EscapeCapable, EscapeAware, DisplayValueOnlyAware,
ForceIdAware, DataProperties, AltProperty
{
public static final String COMPONENT_TYPE = "org.apache.myfaces.HtmlSelectOneRadio";
public static final String DEFAULT_RENDERER_TYPE ="org.apache.myfaces.Radio";
private static Log log = LogFactory.getLog(AbstractHtmlSelectOneRadio.class);
public String getClientId(FacesContext context)
{
String clientId = HtmlComponentUtils.getClientId(this, getRenderer(context), context);
if (clientId == null)
{
clientId = super.getClientId(context);
}
return clientId;
}
/**
* Overridden method, as with extended seletOne, value doesn't necessarily
* have to be contained within select list, for example, when forceId="true" and
* forceIdIndex="false" then component may be used in datatable.
*/
protected void validateValue(FacesContext context, Object value)
{
//Is this radio button used within a datatable (forceId=true and forceIdIndex=false)
boolean forceId = getBooleanValue(JSFAttr.FORCE_ID_ATTR,
this.getAttributes().get(JSFAttr.FORCE_ID_ATTR), false);
// see if the originally supplied id should be used
boolean forceIdIndex = getBooleanValue(JSFAttr.FORCE_ID_INDEX_ATTR,
this.getAttributes().get(JSFAttr.FORCE_ID_INDEX_ATTR), true);
boolean dataTable = forceId && !forceIdIndex;
if (!dataTable)
{
super.validateValue(context, value);
}
else
{
//Specific behavior for data tables, or other scenarios where forceId is
//true and forceIdIndex is false
//Check if empty
boolean empty = value == null
|| (value instanceof String && ((String) value).length() == 0);
//Check required and empty
if (isRequired() && empty)
{
//Only add this message once, not for every radio button in set
String clientId = this.getClientId(context);
Iterator messages = context.getMessages(clientId);
boolean messageExists = messages.hasNext();
if(!messageExists)
{
//Add message
FacesMessage message = MessageUtils.getMessage(REQUIRED_MESSAGE_ID, new Object[]{clientId});
message.setSeverity(FacesMessage.SEVERITY_WARN);
context.addMessage(clientId, message);
setValid(false);
}
return;
}
//Call validators
if (!empty)
{
callValidators(context, this, value);
}
}
}
private static boolean getBooleanValue(String attribute, Object value, boolean defaultValue)
{
if(value instanceof Boolean)
{
return ((Boolean) value).booleanValue();
}
else if(value instanceof String)
{
return Boolean.valueOf((String) value).booleanValue();
}
else if(value != null)
{
log.error("value for attribute "+attribute+
" must be instanceof 'Boolean' or 'String', is of type : "+value.getClass());
return defaultValue;
}
return defaultValue;
}
private static void callValidators(FacesContext context, UIComponent input, Object convertedValue)
{
if(!(input instanceof EditableValueHolder))
throw new FacesException("param input not of type EditableValueHolder, but of : "+input.getClass().getName());
EditableValueHolder holder = (EditableValueHolder) input;
Validator[] validators = holder.getValidators();
for (int i = 0; i < validators.length; i++)
{
Validator validator = validators[i];
try
{
validator.validate(context, input, convertedValue);
}
catch (ValidatorException e)
{
holder.setValid(false);
FacesMessage facesMessage = e.getFacesMessage();
if (facesMessage != null)
{
facesMessage.setSeverity(FacesMessage.SEVERITY_ERROR);
context.addMessage(input.getClientId(context), facesMessage);
}
}
}
MethodBinding validatorBinding = holder.getValidator();
if (validatorBinding != null)
{
try
{
validatorBinding.invoke(context, new Object[] {context, input, convertedValue});
}
catch (EvaluationException e)
{
holder.setValid(false);
Throwable cause = e.getCause();
if (cause instanceof ValidatorException)
{
FacesMessage facesMessage = ((ValidatorException) cause).getFacesMessage();
if (facesMessage != null)
{
facesMessage.setSeverity(FacesMessage.SEVERITY_ERROR);
context.addMessage(input.getClientId(context), facesMessage);
}
}
else
{
throw e;
}
}
}
}
public boolean isSetDisplayValueOnly(){
return getDisplayValueOnly() != null ? true : false;
}
public boolean isDisplayValueOnly(){
return getDisplayValueOnly() != null ? getDisplayValueOnly().booleanValue() : false;
}
public void setDisplayValueOnly(boolean displayValueOnly){
this.setDisplayValueOnly((Boolean) Boolean.valueOf(displayValueOnly));
}
public boolean isRendered()
{
if (!UserRoleUtils.isVisibleOnUserRole(this)) return false;
return super.isRendered();
}
}