/*
    * 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.shared.taglib;
  
  import java.util.logging.Logger;
  
  import javax.faces.component.ActionSource;
  import javax.faces.component.EditableValueHolder;
  import javax.faces.component.UICommand;
  import javax.faces.component.UIComponent;
  import javax.faces.component.UIGraphic;
  import javax.faces.component.UIParameter;
  import javax.faces.component.UISelectBoolean;
  import javax.faces.component.ValueHolder;
  import javax.faces.context.FacesContext;
  import javax.faces.convert.Converter;
  import javax.faces.el.MethodBinding;
  import javax.faces.el.ValueBinding;
  import javax.faces.event.ActionEvent;
  import javax.faces.event.ValueChangeEvent;
  import javax.faces.webapp.UIComponentTag;
  
  import org.apache.myfaces.shared.el.SimpleActionMethodBinding;
  
  /**
   * @author Manfred Geiler (latest modification by $Author$)
   * @version $Revision$ $Date$
   *
   * @deprecated replaced by @{link UIComponentELTagUtils}
   */
  public class UIComponentTagUtils
  {
      //private static final Log log = LogFactory.getLog(UIComponentTagUtils.class);
      private static final Logger log = Logger
              .getLogger(UIComponentTagUtils.class.getName());
  
      private static final Class[] VALIDATOR_ARGS = { FacesContext.class,
              UIComponent.class, Object.class };
      private static final Class[] ACTION_LISTENER_ARGS = { ActionEvent.class };
      private static final Class[] VALUE_LISTENER_ARGS = { ValueChangeEvent.class };
  
      private UIComponentTagUtils()
      {
      } //util class, no instantiation allowed
  
      public static boolean isValueReference(String v)
      {
          return UIComponentTag.isValueReference(v);
      }
  
      public static void setIntegerProperty(FacesContext context,
              UIComponent component, String propName, String value)
      {
          if (value != null)
          {
              if (isValueReference(value))
              {
                  ValueBinding vb = context.getApplication().createValueBinding(
                          value);
                  component.setValueBinding(propName, vb);
              }
              else
              {
                  //FIXME: should use converter maybe?
                  component.getAttributes().put(propName, Integer.valueOf(value));
              }
          }
      }
  
      public static void setLongProperty(FacesContext context,
              UIComponent component, String propName, String value)
      {
          if (value != null)
          {
              if (isValueReference(value))
              {
                  ValueBinding vb = context.getApplication().createValueBinding(
                          value);
                  component.setValueBinding(propName, vb);
              }
              else
              {
                  //FIXME: should use converter maybe?
                 component.getAttributes().put(propName, Long.valueOf(value));
             }
         }
     }
 
     public static void setStringProperty(FacesContext context,
             UIComponent component, String propName, String value)
     {
         if (value != null)
         {
             if (isValueReference(value))
             {
                 ValueBinding vb = context.getApplication().createValueBinding(
                         value);
                 component.setValueBinding(propName, vb);
             }
             else
             {
                 //TODO: Warning if component has no such property (with reflection)
                 component.getAttributes().put(propName, value);
             }
         }
     }
 
     public static void setBooleanProperty(FacesContext context,
             UIComponent component, String propName, String value)
     {
         if (value != null)
         {
             if (isValueReference(value))
             {
                 ValueBinding vb = context.getApplication().createValueBinding(
                         value);
                 component.setValueBinding(propName, vb);
             }
             else
             {
                 //TODO: More sophisticated way to convert boolean value (yes/no, 1/0, on/off, etc.)
                 component.getAttributes().put(propName, Boolean.valueOf(value));
             }
         }
     }
 
     public static void setValueProperty(FacesContext context,
             UIComponent component, String value)
     {
         if (value != null)
         {
             if (isValueReference(value))
             {
                 ValueBinding vb = context.getApplication().createValueBinding(
                         value);
                 component.setValueBinding(
                         org.apache.myfaces.shared.renderkit.JSFAttr.VALUE_ATTR,
                         vb);
             }
             else if (component instanceof UICommand)
             {
                 ((UICommand) component).setValue(value);
             }
             else if (component instanceof UIParameter)
             {
                 ((UIParameter) component).setValue(value);
             }
             else if (component instanceof UISelectBoolean)
             {
                 ((UISelectBoolean) component).setValue(Boolean.valueOf(value));
             }
             else if (component instanceof UIGraphic)
             {
                 ((UIGraphic) component).setValue(value);
             }
             //Since many input components are ValueHolders the special components
             //must come first, ValueHolder is the last resort.
             else if (component instanceof ValueHolder)
             {
                 ((ValueHolder) component).setValue(value);
             }
             else
             {
                 log.severe("Component " + component.getClass().getName()
                         + " is no ValueHolder, cannot set value.");
             }
         }
     }
 
     public static void setConverterProperty(FacesContext context,
             UIComponent component, String value)
     {
         if (value != null)
         {
             if (component instanceof ValueHolder)
             {
                 if (isValueReference(value))
                 {
                     ValueBinding vb = context.getApplication()
                             .createValueBinding(value);
                     component
                             .setValueBinding(
                                     org.apache.myfaces.shared.renderkit.JSFAttr.CONVERTER_ATTR,
                                     vb);
                 }
                 else
                 {
                     FacesContext facesContext = FacesContext
                             .getCurrentInstance();
                     Converter converter = facesContext.getApplication()
                             .createConverter(value);
                     ((ValueHolder) component).setConverter(converter);
                 }
             }
             else
             {
                 log.severe("Component " + component.getClass().getName()
                         + " is no ValueHolder, cannot set value.");
             }
         }
     }
 
     public static void setValidatorProperty(FacesContext context,
             UIComponent component, String validator)
     {
         if (validator != null)
         {
             if (!(component instanceof EditableValueHolder))
             {
                 throw new IllegalArgumentException("Component "
                         + component.getClientId(context)
                         + " is no EditableValueHolder");
             }
             if (isValueReference(validator))
             {
                 MethodBinding mb = context.getApplication()
                         .createMethodBinding(validator, VALIDATOR_ARGS);
                 ((EditableValueHolder) component).setValidator(mb);
             }
             else
             {
                 log.severe("Component " + component.getClientId(context)
                         + " has invalid validation expression " + validator);
             }
         }
     }
 
     public static void setValueBinding(FacesContext context,
             UIComponent component, String propName, String value)
     {
         if (value != null)
         {
             if (isValueReference(value))
             {
                 ValueBinding vb = context.getApplication().createValueBinding(
                         value);
                 component.setValueBinding(propName, vb);
             }
             else
             {
                 throw new IllegalArgumentException("Component "
                         + component.getClientId(context) + " attribute "
                         + propName + " must be a value reference, was " + value);
             }
         }
     }
 
     public static void setActionProperty(FacesContext context,
             UIComponent component, String action)
     {
         if (action != null)
         {
             if (!(component instanceof ActionSource))
             {
                 throw new IllegalArgumentException("Component "
                         + component.getClientId(context)
                         + " is no ActionSource");
             }
             MethodBinding mb;
             if (isValueReference(action))
             {
                 mb = context.getApplication().createMethodBinding(action, null);
             }
             else
             {
                 mb = new SimpleActionMethodBinding(action);
             }
             ((ActionSource) component).setAction(mb);
         }
     }
 
     public static void setActionListenerProperty(FacesContext context,
             UIComponent component, String actionListener)
     {
         if (actionListener != null)
         {
             if (!(component instanceof ActionSource))
             {
                 throw new IllegalArgumentException("Component "
                         + component.getClientId(context)
                         + " is no ActionSource");
             }
             if (isValueReference(actionListener))
             {
                 MethodBinding mb = context.getApplication()
                         .createMethodBinding(actionListener,
                                 ACTION_LISTENER_ARGS);
 
                 /**
                 if(! Void.class.equals(mb.getType(context)))
                 {
                     throw new IllegalArgumentException(
                             actionListener +
                             " : Return types for action listeners must be void, see JSF spec. 3.2.1.1");
                 }
                 */
 
                 ((ActionSource) component).setActionListener(mb);
             }
             else
             {
                 log.severe("Component " + component.getClientId(context)
                         + " has invalid actionListener value: "
                         + actionListener);
             }
         }
     }
 
     public static void setValueChangedListenerProperty(FacesContext context,
             UIComponent component, String valueChangedListener)
     {
         if (valueChangedListener != null)
         {
             if (!(component instanceof EditableValueHolder))
             {
                 throw new IllegalArgumentException("Component "
                         + component.getClientId(context)
                         + " is no EditableValueHolder");
             }
             if (isValueReference(valueChangedListener))
             {
                 MethodBinding mb = context.getApplication()
                         .createMethodBinding(valueChangedListener,
                                 VALUE_LISTENER_ARGS);
                 /**
                 if(! Void.class.equals(mb.getType(context)))
                 {
                     throw new IllegalArgumentException(
                             valueChangedListener +
                             " : Return types for value change listeners must be void, see JSF spec. 3.2.5.1");
                 }
                 */
 
                 ((EditableValueHolder) component).setValueChangeListener(mb);
             }
             else
             {
                 log.severe("Component " + component.getClientId(context)
                         + " has invalid valueChangedListener expression "
                         + valueChangedListener);
             }
         }
     }
 
 }