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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 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.validator.Validator;
import javax.faces.validator.FacesValidator;
import javax.servlet.ServletContext;
import javax.xml.xpath.XPathExpressionException;
import java.text.MessageFormat;
import java.util.Iterator;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.faces.validator.BeanValidator;

/**
 * 

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

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

/faces-config/validator

*/ private static final String VALIDATOR = "validator"; /** *

/faces-config/component/validator-id

*/ private static final String VALIDATOR_ID = "validator-id"; /** *

/faces-config/component/validator-class

*/ private static final String VALIDATOR_CLASS = "validator-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 Validators first as Validators configured // via config files take precedence processAnnotations(FacesValidator.class); for (int i = 0; i < documentInfos.length; i++) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Processing validator elements for document: ''{0}''", documentInfos[i].getSourceURI())); } Document document = documentInfos[i].getDocument(); String namespace = document.getDocumentElement().getNamespaceURI(); NodeList validators = document.getDocumentElement() .getElementsByTagNameNS(namespace, VALIDATOR); if (validators != null && validators.getLength() > 0) { addValidators(validators, namespace); } } processDefaultValidatorIds(); invokeNext(sc, documentInfos); } // --------------------------------------------------------- Private Methods private void processDefaultValidatorIds() { Application app = getApplication(); Map defaultValidatorInfo = app.getDefaultValidatorInfo(); for (Map.Entry info : defaultValidatorInfo.entrySet()) { String defaultValidatorId = info.getKey(); boolean found = false; for (Iterator registered = app.getValidatorIds(); registered.hasNext(); ) { if (defaultValidatorId.equals(registered.next())) { found = true; break; } } if (!found) { String msg = MessageFormat.format("Default validator ''{0}'' does not reference a registered validator.", defaultValidatorId); throw new ConfigurationException(msg); } } } private void addValidators(NodeList validators, String namespace) throws XPathExpressionException { Application app = getApplication(); Verifier verifier = Verifier.getCurrentInstance(); for (int i = 0, size = validators.getLength(); i < size; i++) { Node validator = validators.item(i); NodeList children = ((Element) validator) .getElementsByTagNameNS(namespace, "*"); String validatorId = null; String validatorClass = null; for (int c = 0, csize = children.getLength(); c < csize; c++) { Node n = children.item(c); if (n.getNodeType() == Node.ELEMENT_NODE) { if (VALIDATOR_ID.equals(n.getLocalName())) { validatorId = getNodeText(n); } else if (VALIDATOR_CLASS.equals(n.getLocalName())) { validatorClass = getNodeText(n); } } } if (validatorId != null && validatorClass != null) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Calling Application.addValidator({0},{1})", validatorId, validatorClass)); } boolean doAdd = true; if (validatorId.equals(BeanValidator.VALIDATOR_ID)) { doAdd = ApplicationConfigProcessor.isBeanValidatorAvailable(); } if (doAdd) { if (verifier != null) { verifier.validateObject(Verifier.ObjectType.VALIDATOR, validatorClass, Validator.class); } app.addValidator(validatorId, validatorClass); } } } } }




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