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package com.sun.faces.config.processor;

import com.sun.faces.util.FacesLogger;
import com.sun.faces.config.Verifier;
import com.sun.faces.config.DocumentInfo;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Element;
import org.w3c.dom.Document;

import javax.faces.application.Application;
import javax.faces.component.UIComponent;
import javax.faces.component.FacesComponent;
import javax.servlet.ServletContext;
import javax.xml.xpath.XPathExpressionException;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.text.MessageFormat;

/**
 * 

* This ConfigProcessor handles all elements defined under * /faces-config/component. *

*/ public class ComponentConfigProcessor extends AbstractConfigProcessor { private static final Logger LOGGER = FacesLogger.CONFIG.getLogger(); /** *

/faces-config/component

*/ private static final String COMPONENT = "component"; /** *

/faces-config/component/component-type

*/ private static final String COMPONENT_TYPE = "component-type"; /** *

/faces-config/component/component-class

*/ private static final String COMPONENT_CLASS = "component-class"; // -------------------------------------------- Methods from ConfigProcessor /** * @see ConfigProcessor#process(javax.servlet.ServletContext,com.sun.faces.config.DocumentInfo[]) @param sc * @param documentInfos */ public void process(ServletContext sc, DocumentInfo[] documentInfos) throws Exception { // process annotated components first as components configured // via config files take precedence processAnnotations(FacesComponent.class); for (int i = 0; i < documentInfos.length; i++) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Processing component elements for document: ''{0}''", documentInfos[i].getSourceURI())); } Document document = documentInfos[i].getDocument(); String namespace = document.getDocumentElement() .getNamespaceURI(); NodeList components = document.getDocumentElement() .getElementsByTagNameNS(namespace, COMPONENT); if (components != null && components.getLength() > 0) { addComponents(components, namespace); } } invokeNext(sc, documentInfos); } // --------------------------------------------------------- Private Methods private void addComponents(NodeList components, String namespace) throws XPathExpressionException { Application app = getApplication(); Verifier verifier = Verifier.getCurrentInstance(); for (int i = 0, size = components.getLength(); i < size; i++) { Node componentNode = components.item(i); NodeList children = ((Element) componentNode) .getElementsByTagNameNS(namespace, "*"); String componentType = null; String componentClass = null; for (int c = 0, csize = children.getLength(); c < csize; c++) { Node n = children.item(c); if (COMPONENT_TYPE.equals(n.getLocalName())) { componentType = getNodeText(n); } else if (COMPONENT_CLASS.equals(n.getLocalName())) { componentClass = getNodeText(n); } } if (componentType != null && componentClass != null) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Calling Application.addComponent({0},{1})", componentType, componentClass)); } if (verifier != null) { verifier.validateObject(Verifier.ObjectType.COMPONENT, componentClass, UIComponent.class); } app.addComponent(componentType, componentClass); } } } }




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