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package com.sun.faces.config.processor;

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

import javax.faces.application.Application;
import javax.faces.convert.Converter;
import javax.faces.convert.FacesConverter;
import javax.servlet.ServletContext;

import java.text.MessageFormat;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * 

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

*/ public class ConverterConfigProcessor extends AbstractConfigProcessor { private static final Logger LOGGER = FacesLogger.CONFIG.getLogger(); /** * /faces-config/converter */ private static final String CONVERTER = "converter"; /** * /faces-config/converter/converter-id * (mutually exclusive with converter-for-class) */ private static final String CONVERTER_ID = "converter-id"; /** * /faces-config/converter/converter-for-class * (mutually exclusive with converter-id) */ private static final String CONVERTER_FOR_CLASS = "converter-for-class"; /** * /faces-config/converter/converter-class */ private static final String CONVERTER_CLASS = "converter-class"; // -------------------------------------------- Methods from ConfigProcessor /** * @see ConfigProcessor#process(javax.servlet.ServletContext,com.sun.faces.config.DocumentInfo[]) */ public void process(ServletContext sc, DocumentInfo[] documentInfos) throws Exception { // process annotated converters first as converters configured // via config files take precedence processAnnotations(FacesConverter.class); for (int i = 0; i < documentInfos.length; i++) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Processing converter elements for document: ''{0}''", documentInfos[i].getSourceURI())); } Document document = documentInfos[i].getDocument(); String namespace = document.getDocumentElement() .getNamespaceURI(); NodeList nodes = document.getDocumentElement() .getElementsByTagNameNS(namespace, CONVERTER); if (nodes != null && nodes.getLength() > 0) { addConverters(nodes, namespace); } } invokeNext(sc, documentInfos); } // --------------------------------------------------------- Private Methods private void addConverters(NodeList converters, String namespace) { Application application = getApplication(); Verifier verifier = Verifier.getCurrentInstance(); for (int i = 0, size = converters.getLength(); i < size; i++) { Node converter = converters.item(i); NodeList children = ((Element) converter) .getElementsByTagNameNS(namespace, "*"); String converterId = null; String converterClass = null; String converterForClass = null; for (int c = 0, csize = children.getLength(); c < csize; c++) { Node n = children.item(c); if (CONVERTER_ID.equals(n.getLocalName())) { converterId = getNodeText(n); } else if (CONVERTER_CLASS.equals(n.getLocalName())) { converterClass = getNodeText(n); } else if (CONVERTER_FOR_CLASS.equals(n.getLocalName())) { converterForClass = getNodeText(n); } } if (converterId != null && converterClass != null) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "[Converter by ID] Calling Application.addConverter({0}, {1}", converterId, converterClass)); } if (verifier != null) { verifier.validateObject(Verifier.ObjectType.CONVERTER, converterClass, Converter.class); } application.addConverter(converterId, converterClass); } else if (converterClass != null && converterForClass != null) { try { Class cfcClass = Util.loadClass(converterForClass, this.getClass()); if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "[Converter for Class] Calling Application.addConverter({0}, {1}", converterForClass, converterClass)); } if (verifier != null) { verifier.validateObject(Verifier.ObjectType.CONVERTER, converterClass, Converter.class); } application.addConverter(cfcClass, converterClass); } catch (ClassNotFoundException cnfe) { throw new ConfigurationException(cnfe); } } } } }




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