/*
* 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.view.facelets.compiler;
import java.io.IOException;
import java.io.Writer;
import javax.el.ELException;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.component.UniqueIdVendor;
import javax.faces.view.facelets.FaceletContext;
import javax.faces.view.facelets.FaceletException;
import org.apache.myfaces.view.facelets.FaceletCompositionContext;
import org.apache.myfaces.view.facelets.el.ELText;
import org.apache.myfaces.view.facelets.tag.jsf.ComponentSupport;
import org.apache.myfaces.view.facelets.util.FastWriter;
/**
* @author Jacob Hookom
* @version $Id: UITextHandler.java 1194849 2011-10-29 09:28:45Z struberg $
*/
final class UITextHandler extends AbstractUIHandler
{
private final ELText txt;
private final String alias;
private final int length;
public UITextHandler(String alias, ELText txt)
{
this.alias = alias;
this.txt = txt;
this.length = txt.toString().length();
}
public void apply(FaceletContext ctx, UIComponent parent) throws IOException, FacesException, FaceletException,
ELException
{
if (parent != null)
{
try
{
ELText nt = this.txt.apply(ctx.getExpressionFactory(), ctx);
UIComponent c = new UIText(this.alias, nt);
UniqueIdVendor uniqueIdVendor
= FaceletCompositionContext.getCurrentInstance(ctx).getUniqueIdVendorFromStack();
if (uniqueIdVendor == null)
{
uniqueIdVendor = ComponentSupport.getViewRoot(ctx, parent);
}
if (uniqueIdVendor != null)
{
// UIViewRoot implements UniqueIdVendor, so there is no need to cast to UIViewRoot
// and call createUniqueId()
String uid = uniqueIdVendor.createUniqueId(ctx.getFacesContext(), null);
c.setId(uid);
}
this.addComponent(ctx, parent, c);
}
catch (Exception e)
{
throw new ELException(this.alias + ": " + e.getMessage(), e.getCause());
}
}
}
public String toString()
{
return this.txt.toString();
}
public String getText()
{
return this.txt.toString();
}
public String getText(FaceletContext ctx)
{
Writer writer = new FastWriter(this.length);
try
{
this.txt.apply(ctx.getExpressionFactory(), ctx).write(writer, ctx);
}
catch (IOException e)
{
throw new ELException(this.alias + ": " + e.getMessage(), e.getCause());
}
return writer.toString();
}
}