org.apache.myfaces.shared_impl.renderkit.RendererUtils Maven / Gradle / Ivy
/*
* 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_impl.renderkit;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.el.ValueExpression;
import javax.faces.FacesException;
import javax.faces.FactoryFinder;
import javax.faces.component.EditableValueHolder;
import javax.faces.component.NamingContainer;
import javax.faces.component.UIComponent;
import javax.faces.component.UIForm;
import javax.faces.component.UIInput;
import javax.faces.component.UINamingContainer;
import javax.faces.component.UIOutput;
import javax.faces.component.UISelectMany;
import javax.faces.component.UISelectOne;
import javax.faces.component.UIViewRoot;
import javax.faces.component.ValueHolder;
import javax.faces.component.html.HtmlInputText;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.ConverterException;
import javax.faces.el.PropertyNotFoundException;
import javax.faces.el.ValueBinding;
import javax.faces.event.PhaseId;
import javax.faces.model.SelectItem;
import javax.faces.render.RenderKit;
import javax.faces.render.RenderKitFactory;
import javax.faces.render.ResponseStateManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.myfaces.shared_impl.renderkit.html.util.FormInfo;
import org.apache.myfaces.shared_impl.util.HashMapUtils;
import org.apache.myfaces.shared_impl.util.SelectItemsIterator;
/**
* @author Manfred Geiler (latest modification by $Author: lu4242 $)
* @version $Revision: 1136983 $ $Date: 2011-06-17 14:10:49 -0500 (Fri, 17 Jun 2011) $
*/
public final class RendererUtils
{
private RendererUtils(){
//nope
}
private static final Log log = LogFactory.getLog(RendererUtils.class);
public static final String SELECT_ITEM_LIST_ATTR = RendererUtils.class.getName() + ".LIST";
public static final String EMPTY_STRING = "";
public static final Object NOTHING = new Serializable() {
public boolean equals(final Object o)
{
if (o != null)
{
if (o.getClass().equals(this.getClass()))
{
return true;
}
}
return false;
}
};
public static final String ACTION_FOR_LIST = "org.apache.myfaces.ActionForList";
public static final String ACTION_FOR_PHASE_LIST = "org.apache.myfaces.ActionForPhaseList";
public static final String SEQUENCE_PARAM = "jsf_sequence";
private static final String RENDER_KIT_IMPL = RendererUtils.class.getName() + ".RenderKitImpl";
public static String getPathToComponent(UIComponent component)
{
StringBuffer buf = new StringBuffer();
if(component == null)
{
buf.append("{Component-Path : ");
buf.append("[null]}");
return buf.toString();
}
getPathToComponent(component,buf);
buf.insert(0,"{Component-Path : ");
buf.append("}");
return buf.toString();
}
private static void getPathToComponent(UIComponent component, StringBuffer buf)
{
if(component == null)
return;
StringBuffer intBuf = new StringBuffer();
intBuf.append("[Class: ");
intBuf.append(component.getClass().getName());
if(component instanceof UIViewRoot)
{
intBuf.append(",ViewId: ");
intBuf.append(((UIViewRoot) component).getViewId());
}
else
{
intBuf.append(",Id: ");
intBuf.append(component.getId());
}
intBuf.append("]");
buf.insert(0,intBuf.toString());
getPathToComponent(component.getParent(), buf);
}
public static String getConcatenatedId(FacesContext context, UIComponent container,
String clientId)
{
UIComponent child = container.findComponent(clientId);
if(child == null)
return clientId;
return getConcatenatedId(context, child);
}
public static String getConcatenatedId(FacesContext context, UIComponent component)
{
if (context == null) throw new NullPointerException("context");
StringBuffer idBuf = new StringBuffer();
idBuf.append(component.getId());
UIComponent parent;
while((parent = component.getParent())!=null)
{
if(parent instanceof NamingContainer)
{
idBuf.insert(0,NamingContainer.SEPARATOR_CHAR);
idBuf.insert(0,parent.getId());
}
}
return idBuf.toString();
}
public static Boolean getBooleanValue(UIComponent component)
{
Object value = getObjectValue(component);
// Try to convert to Boolean if it is a String
if (value instanceof String) {
value = Boolean.valueOf((String)value);
}
if (value==null || value instanceof Boolean)
{
return (Boolean) value;
}
throw new IllegalArgumentException("Expected submitted value of type Boolean for Component : "+
getPathToComponent(component));
}
public static Date getDateValue(UIComponent component)
{
Object value = getObjectValue(component);
if (value==null || value instanceof Date)
{
return (Date) value;
}
throw new IllegalArgumentException("Expected submitted value of type Date for component : "
+getPathToComponent(component));
}
public static Object getObjectValue(UIComponent component)
{
if (!(component instanceof ValueHolder))
{
throw new IllegalArgumentException("Component : "+
getPathToComponent(component)+"is not a ValueHolder");
}
if (component instanceof EditableValueHolder)
{
Object value = ((EditableValueHolder)component).getSubmittedValue();
if(value != null && !NOTHING.equals(value))
{
return value;
}
}
return ((ValueHolder)component).getValue();
}
@Deprecated
public static String getStringValue(FacesContext context, ValueBinding vb)
{
Object value = vb.getValue(context);
if (value != null)
{
return value.toString();
}
return null;
}
public static String getStringValue(FacesContext context, ValueExpression ve)
{
Object value = ve.getValue(context.getELContext());
if (value != null)
{
return value.toString();
}
return null;
}
public static String getStringValue(FacesContext facesContext,
UIComponent component)
{
try
{
if (!(component instanceof ValueHolder))
{
throw new IllegalArgumentException("Component : "+getPathToComponent(component)+"is not a ValueHolder");
}
if (component instanceof EditableValueHolder)
{
Object submittedValue = ((EditableValueHolder)component).getSubmittedValue();
if (submittedValue != null)
{
if (submittedValue instanceof String)
{
if (log.isDebugEnabled()) log.debug("returning 1 '" + submittedValue + "'");
return (String)submittedValue;
}
throw new IllegalArgumentException("Expected submitted value of type String for component : "
+getPathToComponent(component));
}
}
Object value;
if(component instanceof EditableValueHolder) {
EditableValueHolder holder = (EditableValueHolder) component;
if(holder.isLocalValueSet()) {
value = holder.getLocalValue();
} else {
value = getValue(component);
}
}
else {
value = getValue(component);
}
Converter converter = ((ValueHolder)component).getConverter();
if (converter == null && value != null)
{
try
{
converter = facesContext.getApplication().createConverter(value.getClass());
if (log.isDebugEnabled()) log.debug("the created converter is " + converter);
}
catch (FacesException e)
{
log.error("No converter for class " + value.getClass().getName() + " found (component id=" + component.getId() + ").");
// converter stays null
}
}
if (converter == null)
{
if (value == null)
{
if (log.isDebugEnabled()) log.debug("returning an empty string");
return "";
}
if (log.isDebugEnabled()) log.debug("returning an .toString");
return value.toString();
}
if (log.isDebugEnabled()) log.debug("returning converter get as string " + converter);
return converter.getAsString(facesContext, component, value);
}
catch(PropertyNotFoundException ex)
{
log.error("Property not found - called by component : "+getPathToComponent(component),ex);
throw ex;
}
}
private static Object getValue(UIComponent component) {
Object value;
try
{
value = ((ValueHolder) component).getValue();
}
catch(Exception ex)
{
throw new FacesException("Could not retrieve value of component with path : "+
getPathToComponent(component),ex);
}
return value;
}
/**
* See JSF Spec. 8.5 Table 8-1
* @param value
* @return boolean
*/
public static boolean isDefaultAttributeValue(Object value)
{
if (value == null)
{
return true;
}
else if (value instanceof Boolean)
{
return !((Boolean) value).booleanValue();
}
else if (value instanceof Number)
{
if (value instanceof Integer)
{
return ((Number)value).intValue() == Integer.MIN_VALUE;
}
else if (value instanceof Double)
{
return ((Number)value).doubleValue() == Double.MIN_VALUE;
}
else if (value instanceof Long)
{
return ((Number)value).longValue() == Long.MIN_VALUE;
}
else if (value instanceof Byte)
{
return ((Number)value).byteValue() == Byte.MIN_VALUE;
}
else if (value instanceof Float)
{
return ((Number)value).floatValue() == Float.MIN_VALUE;
}
else if (value instanceof Short)
{
return ((Number)value).shortValue() == Short.MIN_VALUE;
}
}
return false;
}
/**
* Find the proper Converter for the given UIOutput component.
* @return the Converter or null if no Converter specified or needed
* @throws FacesException if the Converter could not be created
*/
public static Converter findUIOutputConverter(FacesContext facesContext,
UIOutput component)
throws FacesException
{
return _SharedRendererUtils.findUIOutputConverter(facesContext, component);
}
/**
* Find proper Converter for the entries in the associated List or Array of
* the given UISelectMany as specified in API Doc of UISelectMany.
* @return the Converter or null if no Converter specified or needed
* @throws FacesException if the Converter could not be created
*/
public static Converter findUISelectManyConverter(FacesContext facesContext,
UISelectMany component)
{
Converter converter = component.getConverter();
if (converter != null) return converter;
//Try to find out by value binding
ValueExpression vb = component.getValueExpression("value");
if (vb == null) return null;
//By some strange reason vb.getType(facesContext.getELContext());
//does not return the same as vb.getValue(facesContext.getELContext()).getClass(),
//so we need to use this instead.
Class valueType = null;
Object value = vb.getValue(facesContext.getELContext());
valueType = (value != null) ? value.getClass() :
vb.getType(facesContext.getELContext()) ;
if (valueType == null) return null;
if (List.class.isAssignableFrom(valueType))
{
//According to API Doc of UISelectMany the assumed entry type for a List is String
//--> so basically no converter needed
// However, if the List contains something other than Strings, we can attempt
// to find a suitable converter. In JDK 1.4, we can try to find out what the List
// contains by looking at the SelectItem value of the first item. With generics in
// JDK 1.5, it would be much easier to determine the type.
List selectItems = RendererUtils.internalGetSelectItemList(component);
if (selectItems != null && selectItems.size() > 0)
{
SelectItem selectItem = (SelectItem) selectItems.get(0);
Class listComponentType = selectItem.getValue().getClass();
try
{
return facesContext.getApplication().createConverter(listComponentType);
}
catch (FacesException e)
{
log.error("No Converter for type " + listComponentType.getName() + " found", e);
return null;
}
}
return null;
}
if (!valueType.isArray())
{
throw new IllegalArgumentException("ValueBinding for UISelectMany : "+getPathToComponent(component)+" must be of type List or Array");
}
Class arrayComponentType = valueType.getComponentType();
if (String.class.equals(arrayComponentType)) return null; //No converter needed for String type
if (Object.class.equals(arrayComponentType)) return null; //There is no converter for Object class
try
{
return facesContext.getApplication().createConverter(arrayComponentType);
}
catch (FacesException e)
{
log.error("No Converter for type " + arrayComponentType.getName() + " found", e);
return null;
}
}
public static void checkParamValidity(FacesContext facesContext, UIComponent uiComponent, Class compClass)
{
if(facesContext == null)
throw new NullPointerException("facesContext may not be null");
if(uiComponent == null)
throw new NullPointerException("uiComponent may not be null");
//if (compClass != null && !(compClass.isAssignableFrom(uiComponent.getClass())))
// why isAssignableFrom with additional getClass method call if isInstance does the same?
if (compClass != null && !(compClass.isInstance(uiComponent)))
{
throw new IllegalArgumentException("uiComponent : "+getPathToComponent(uiComponent)+
" is not instance of "+compClass.getName()+" as it should be");
}
}
public static void renderChildren(FacesContext facesContext, UIComponent component)
throws IOException
{
if (component.getChildCount() > 0)
{
for (Iterator it = component.getChildren().iterator(); it.hasNext(); )
{
UIComponent child = (UIComponent)it.next();
renderChild(facesContext, child);
}
}
}
public static void renderChild(FacesContext facesContext, UIComponent child)
throws IOException
{
if (!child.isRendered())
{
return;
}
child.encodeBegin(facesContext);
if (child.getRendersChildren())
{
child.encodeChildren(facesContext);
}
else
{
renderChildren(facesContext, child);
}
child.encodeEnd(facesContext);
}
/**
* @param uiSelectOne
* @return List of SelectItem Objects
*/
public static List getSelectItemList(UISelectOne uiSelectOne)
{
return internalGetSelectItemList(uiSelectOne);
}
/**
* @param uiSelectMany
* @return List of SelectItem Objects
*/
public static List getSelectItemList(UISelectMany uiSelectMany)
{
return internalGetSelectItemList(uiSelectMany);
}
private static List internalGetSelectItemList(UIComponent uiComponent)
{
/* TODO: Shall we cache the list in a component attribute?
ArrayList list = (ArrayList)uiComponent.getAttributes().get(SELECT_ITEM_LIST_ATTR);
if (list != null)
{
return list;
}
*/
List list = new ArrayList();
for (Iterator iter = new SelectItemsIterator(uiComponent); iter.hasNext();)
{
list.add(iter.next());
}
return list;
}
/**
* Convenient utility method that returns the currently submitted values of
* a UISelectMany component as a Set, of which the contains method can then be
* easily used to determine if a select item is currently selected.
* Calling the contains method of this Set with the renderable (String converted) item value
* as argument returns true if this item is selected.
* @param uiSelectMany
* @return Set containing all currently selected values
*/
public static Set getSubmittedValuesAsSet(FacesContext context, UIComponent component, Converter converter, UISelectMany uiSelectMany)
{
Object submittedValues = uiSelectMany.getSubmittedValue();
if (submittedValues == null)
{
return null;
}
if(converter != null) {
converter = new PassThroughAsStringConverter(converter);
}
return internalSubmittedOrSelectedValuesAsSet(context, component, converter, uiSelectMany, submittedValues);
}
/**
* Convenient utility method that returns the currently selected values of
* a UISelectMany component as a Set, of which the contains method can then be
* easily used to determine if a value is currently selected.
* Calling the contains method of this Set with the item value
* as argument returns true if this item is selected.
* @param uiSelectMany
* @return Set containing all currently selected values
*/
public static Set getSelectedValuesAsSet(FacesContext context, UIComponent component, Converter converter, UISelectMany uiSelectMany)
{
Object selectedValues = uiSelectMany.getValue();
return internalSubmittedOrSelectedValuesAsSet(context, component, converter, uiSelectMany, selectedValues);
}
/**
* Convenient utility method that returns the currently given value as String,
* using the given converter.
* Especially usefull for dealing with primitive types.
*/
public static String getConvertedStringValue(FacesContext context,
UIComponent component, Converter converter, Object value) {
if (converter == null) {
if (value == null) {
return "";
} else if (value instanceof String) {
return (String) value;
} else if (RendererUtils.NOTHING.equals(value)) {
return "";
} else {
throw new IllegalArgumentException(
"Value is no String (class=" + value.getClass().getName() + ", value=" + value + ") and component "
+ component.getClientId(context) +"with path: "
+ getPathToComponent(component)
+ " does not have a Converter");
}
}
if (RendererUtils.NOTHING.equals(value))
{
return converter.getAsString(context, component, "");
}
else
{
return converter.getAsString(context, component, value);
}
}
/**
* Convenient utility method that returns the currently given SelectItem value
* as String, using the given converter.
* Especially usefull for dealing with primitive types.
*/
public static String getConvertedStringValue(FacesContext context,
UIComponent component, Converter converter, SelectItem selectItem) {
return getConvertedStringValue(context, component, converter, selectItem.getValue());
}
private static Set internalSubmittedOrSelectedValuesAsSet(FacesContext context,
UIComponent component, Converter converter, UISelectMany uiSelectMany,
Object values)
{
if (values == null || EMPTY_STRING.equals(values))
{
return Collections.EMPTY_SET;
}
else if (values instanceof Object[])
{
//Object array
Object[] ar = (Object[])values;
if (ar.length == 0)
{
return Collections.EMPTY_SET;
}
HashSet set = new HashSet(HashMapUtils.calcCapacity(ar.length));
for (int i = 0; i < ar.length; i++)
{
set.add( getConvertedStringValue(context, component, converter, ar[i]) );
}
return set;
}
else if (values.getClass().isArray())
{
//primitive array
int len = Array.getLength(values);
HashSet set = new HashSet(org.apache.myfaces.shared_impl.util.HashMapUtils.calcCapacity(len));
for (int i = 0; i < len; i++)
{
set.add( getConvertedStringValue(context, component, converter, Array.get(values,i)) );
}
return set;
}
else if (values instanceof List)
{
List lst = (List)values;
if (lst.size() == 0)
{
return Collections.EMPTY_SET;
}
HashSet set = new HashSet(HashMapUtils.calcCapacity(lst.size()));
for (Iterator i = lst.iterator(); i.hasNext();)
set.add(getConvertedStringValue(context, component, converter, i.next()));
return set;
}
else
{
throw new IllegalArgumentException("Value of UISelectMany component with path : "
+ getPathToComponent(uiSelectMany) + " is not of type Array or List");
}
}
public static Object getConvertedUISelectOneValue(FacesContext facesContext, UISelectOne output, Object submittedValue){
if (submittedValue != null && !(submittedValue instanceof String))
{
if (RendererUtils.NOTHING.equals(submittedValue))
{
return null;
}
throw new IllegalArgumentException("Submitted value of type String for component : "
+ getPathToComponent(output) + "expected");
}
//To be compatible with jsf ri, and according to issue 69
//[ Permit the passing of a null value to SelectItem.setValue() ]
//If submittedValue == "" then convert to null.
if ((submittedValue != null) && (submittedValue instanceof String) && ("".equals(submittedValue)))
{
//Replace "" by null value
submittedValue = null;
}
Converter converter;
try
{
converter = findUIOutputConverter(facesContext, output);
}
catch (FacesException e)
{
throw new ConverterException(e);
}
return converter == null ? submittedValue : converter
.getAsObject(facesContext, output, (String) submittedValue);
}
public static Object getConvertedUIOutputValue(FacesContext facesContext, UIOutput output, Object submittedValue)
throws ConverterException
{
if (submittedValue != null && !(submittedValue instanceof String))
{
if (RendererUtils.NOTHING.equals(submittedValue))
{
return null;
}
throw new IllegalArgumentException("Submitted value of type String for component : "
+ getPathToComponent(output) + "expected");
}
Converter converter;
try
{
converter = findUIOutputConverter(facesContext, output);
}
catch (FacesException e)
{
throw new ConverterException(e);
}
return converter == null ? submittedValue : converter
.getAsObject(facesContext, output, (String) submittedValue);
}
public static Object getConvertedUISelectManyValue(FacesContext facesContext, UISelectMany selectMany,
Object submittedValue) throws ConverterException
{
if (submittedValue == null)
{
return null;
}
if (!(submittedValue instanceof String[]))
{
throw new ConverterException("Submitted value of type String[] for component : "
+ getPathToComponent(selectMany) + "expected");
}
return org.apache.myfaces.shared_impl.renderkit._SharedRendererUtils.getConvertedUISelectManyValue(facesContext,
selectMany, (String[]) submittedValue);
}
public static boolean getBooleanAttribute(UIComponent component, String attrName, boolean defaultValue)
{
Boolean b = (Boolean) component.getAttributes().get(attrName);
return b != null ? b.booleanValue() : defaultValue;
}
public static int getIntegerAttribute(UIComponent component, String attrName, int defaultValue)
{
Integer i = (Integer) component.getAttributes().get(attrName);
return i != null ? i.intValue() : defaultValue;
}
private static final String TRINIDAD_FORM_COMPONENT_FAMILY = "org.apache.myfaces.trinidad.Form";
private static final String ADF_FORM_COMPONENT_FAMILY = "oracle.adf.Form";
/**
* Find the enclosing form of a component
* in the view-tree.
* All Subclasses of UIForm and all known
* form-families are searched for.
* Currently those are the Trinidad form family,
* and the (old) ADF Faces form family.
*
* There might be additional form families
* which have to be explicitly entered here.
*
* @param uiComponent
* @param facesContext
* @return FormInfo Information about the form - the form itself and its name.
*/
public static FormInfo findNestingForm(UIComponent uiComponent, FacesContext facesContext)
{
UIComponent parent = uiComponent.getParent();
while (parent != null && (!ADF_FORM_COMPONENT_FAMILY.equals(parent.getFamily()) &&
!TRINIDAD_FORM_COMPONENT_FAMILY.equals(parent.getFamily()) &&
!(parent instanceof UIForm)))
{
parent = parent.getParent();
}
if (parent != null)
{
//link is nested inside a form
String formName = parent.getClientId(facesContext);
return new FormInfo(parent, formName);
}
return null;
}
public 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;
}
public static void copyHtmlInputTextAttributes(HtmlInputText src, HtmlInputText dest)
{
dest.setId(src.getId());
boolean forceId = getBooleanValue(
JSFAttr.FORCE_ID_ATTR,
src.getAttributes().get(JSFAttr.FORCE_ID_ATTR),
false);
if (forceId) {
dest.getAttributes().put(JSFAttr.FORCE_ID_ATTR, Boolean.TRUE);
}
dest.setImmediate(src.isImmediate());
dest.setTransient(src.isTransient());
dest.setAccesskey(src.getAccesskey());
dest.setAlt(src.getAlt());
dest.setConverter(src.getConverter());
dest.setDir(src.getDir());
dest.setDisabled(src.isDisabled());
dest.setLang(src.getLang());
dest.setLocalValueSet(src.isLocalValueSet());
dest.setMaxlength(src.getMaxlength());
dest.setOnblur(src.getOnblur());
dest.setOnchange(src.getOnchange());
dest.setOnclick(src.getOnclick());
dest.setOndblclick(src.getOndblclick());
dest.setOnfocus(src.getOnfocus());
dest.setOnkeydown(src.getOnkeydown());
dest.setOnkeypress(src.getOnkeypress());
dest.setOnkeyup(src.getOnkeyup());
dest.setOnmousedown(src.getOnmousedown());
dest.setOnmousemove(src.getOnmousemove());
dest.setOnmouseout(src.getOnmouseout());
dest.setOnmouseover(src.getOnmouseover());
dest.setOnmouseup(src.getOnmouseup());
dest.setOnselect(src.getOnselect());
dest.setReadonly(src.isReadonly());
dest.setRendered(src.isRendered());
dest.setRequired(src.isRequired());
dest.setSize(src.getSize());
dest.setStyle(src.getStyle());
dest.setStyleClass(src.getStyleClass());
dest.setTabindex(src.getTabindex());
dest.setTitle(src.getTitle());
dest.setValidator(src.getValidator());
}
public static Integer getViewSequence(FacesContext facescontext)
{
Map map = facescontext.getExternalContext().getRequestMap();
Integer sequence = (Integer) map.get(SEQUENCE_PARAM);
if (sequence == null)
{
sequence = new Integer(1);
map.put(SEQUENCE_PARAM, sequence);
synchronized (facescontext.getExternalContext().getSession(true))
{
facescontext.getExternalContext().getSessionMap().put(RendererUtils.SEQUENCE_PARAM, sequence);
}
}
return sequence;
}
public static UIComponent findComponent(UIComponent headerComp, Class clazz)
{
if (clazz.isAssignableFrom(headerComp.getClass()))
{
return headerComp;
}
List li = headerComp.getChildren();
for (int i = 0; i < li.size(); i++)
{
UIComponent comp = (UIComponent) li.get(i);
//recursively iterate through children to find the component
UIComponent lookupComp = findComponent(comp, clazz);
if (lookupComp != null)
return lookupComp;
}
return null;
}
public static void addOrReplaceChild(UIInput component, UIComponent child)
{
List li = component.getChildren();
for (int i = 0; i < li.size(); i++)
{
UIComponent oldChild = (UIComponent) li.get(i);
if (oldChild.getId() != null && oldChild.getId().equals(child.getId()))
{
li.set(i, child);
return;
}
}
component.getChildren().add(child);
}
public static String getClientId(FacesContext facesContext, UIComponent uiComponent, String forAttr)
{
UIComponent forComponent = uiComponent.findComponent(forAttr);
if (forComponent == null)
{
if (log.isInfoEnabled())
{
log
.info("Unable to find component '"
+ forAttr
+ "' (calling findComponent on component '"
+ uiComponent.getClientId(facesContext)
+ "')."
+ " We'll try to return a guessed client-id anyways -"
+ " this will be a problem if you put the referenced component"
+ " into a different naming-container. If this is the case, you can always use the full client-id.");
}
if (forAttr.length() > 0 && forAttr.charAt(0) == UINamingContainer.SEPARATOR_CHAR)
{
//absolute id path
return forAttr.substring(1);
}
//relative id path, we assume a component on the same level as the label component
String labelClientId = uiComponent.getClientId(facesContext);
int colon = labelClientId.lastIndexOf(UINamingContainer.SEPARATOR_CHAR);
return colon == -1 ? forAttr : labelClientId.substring(0, colon + 1) + forAttr;
}
return forComponent.getClientId(facesContext);
}
public static List convertIdsToClientIds(String actionFor, FacesContext facesContext, UIComponent component)
{
List li = new ArrayList();
String[] ids = actionFor.split(",");
for (int i = 0; i < ids.length; i++)
{
String trimedId = ids[i].trim();
if (trimedId.equals("none"))
li.add(trimedId);
else
li.add(RendererUtils.getClientId(facesContext, component, trimedId));
}
return li;
}
public static List convertPhasesToPhasesIds(String actionForPhase)
{
List li = new ArrayList();
if (actionForPhase == null)
{
return li;
}
String[] ids = actionForPhase.split(",");
for (int i = 0; i < ids.length; i++)
{
if (ids[i].equals("PROCESS_VALIDATIONS"))
{
li.add(PhaseId.PROCESS_VALIDATIONS);
}
else if (ids[i].equals("UPDATE_MODEL_VALUES"))
{
li.add(PhaseId.UPDATE_MODEL_VALUES);
}
}
return li;
}
/**
* Helper method which loads a resource file (such as css) by a given context path and a file name.
* Useful to provide css files (or js files) inline.
*
* @param ctx FacesContext object to calculate the context path of the web application.
* @param file name of the resource file (e.g. foo.css).
* @return the content of the resource file, or null if no such file is available.
*/
public static String loadResourceFile(FacesContext ctx, String file)
{
ByteArrayOutputStream content = new ByteArrayOutputStream(10240);
InputStream in = null;
try {
in = ctx.getExternalContext().getResourceAsStream(file);
if (in == null)
{
return null;
}
byte[] fileBuffer = new byte[10240];
int read;
while ((read = in.read(fileBuffer)) > -1)
{
content.write(fileBuffer, 0, read);
}
}
catch (FileNotFoundException e) {
if (log.isWarnEnabled())
log.warn("no such file " + file, e);
content = null;
}
catch (IOException e) {
if (log.isWarnEnabled())
log.warn("problems during processing resource " + file, e);
content = null;
}
finally
{
try
{
content.close();
}
catch (IOException e)
{
log.warn(e.getLocalizedMessage(), e);
}
if (in != null)
{
try
{
in.close();
}
catch (IOException e)
{
log.warn(e.getLocalizedMessage(), e);
}
}
}
return content.toString();
}
/**
* check for partial validation or model update attributes being set
* and initialize the request-map accordingly.
* SubForms will work with this information.
*/
public static void initPartialValidationAndModelUpdate(UIComponent component, FacesContext facesContext)
{
String actionFor = (String) component.getAttributes().get("actionFor");
if (actionFor != null)
{
List li = convertIdsToClientIds(actionFor, facesContext, component);
facesContext.getExternalContext().getRequestMap().put(ACTION_FOR_LIST, li);
String actionForPhase = (String) component.getAttributes().get("actionForPhase");
if (actionForPhase != null)
{
List phaseList = convertPhasesToPhasesIds(actionForPhase);
facesContext.getExternalContext().getRequestMap().put(ACTION_FOR_PHASE_LIST, phaseList);
}
}
}
public static boolean isAdfOrTrinidadForm(UIComponent component) {
if (component == null)
return false;
return ADF_FORM_COMPONENT_FAMILY.equals(component.getFamily()) ||
TRINIDAD_FORM_COMPONENT_FAMILY.equals(component.getFamily());
}
/**
* Gets the ResponseStateManager for the renderKit Id provided
*/
public static ResponseStateManager getResponseStateManager(FacesContext facesContext, String renderKitId)
throws FacesException
{
RenderKit renderKit = facesContext.getRenderKit();
if (renderKit == null)
{
// look for the renderkit in the request
Map requestMap = facesContext.getExternalContext().getRequestMap();
Object f = requestMap.get(RENDER_KIT_IMPL);
RenderKitFactory factory = (f instanceof RenderKitFactory) ? (RenderKitFactory) f : null;
if (factory != null)
{
renderKit = factory.getRenderKit(facesContext, renderKitId);
}
else
{
factory = (RenderKitFactory) FactoryFinder.getFactory(FactoryFinder.RENDER_KIT_FACTORY);
if (factory == null)
{
throw new IllegalStateException("Factory is null");
}
requestMap.put(RENDER_KIT_IMPL, factory);
renderKit = factory.getRenderKit(facesContext, renderKitId);
}
}
if (renderKit == null)
{
throw new IllegalArgumentException("Could not find a RenderKit for \"" + renderKitId + "\"");
}
return renderKit.getResponseStateManager();
}
/**
* Special converter for handling submitted values which don't need to be converted.
*
* @author mathias (latest modification by $Author: lu4242 $)
* @version $Revision: 1136983 $ $Date: 2011-06-17 14:10:49 -0500 (Fri, 17 Jun 2011) $
*/
private static class PassThroughAsStringConverter implements Converter
{
private final Converter converter;
public PassThroughAsStringConverter(Converter converter)
{
this.converter = converter;
}
public Object getAsObject(FacesContext context, UIComponent component,
String value) throws ConverterException
{
return converter.getAsObject(context, component, value);
}
public String getAsString(FacesContext context, UIComponent component,
Object value) throws ConverterException
{
return (String)value;
}
}
}
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