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 * 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
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package com.sun.org.apache.xerces.internal.jaxp.validation;

import java.io.IOException;

import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stax.StAXSource;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Validator;

import com.sun.org.apache.xerces.internal.impl.Constants;
import com.sun.org.apache.xerces.internal.util.SAXMessageFormatter;
import com.sun.org.apache.xerces.internal.util.Status;
import com.sun.org.apache.xerces.internal.xni.parser.XMLConfigurationException;
import com.sun.org.apache.xerces.internal.xs.AttributePSVI;
import com.sun.org.apache.xerces.internal.xs.ElementPSVI;
import com.sun.org.apache.xerces.internal.xs.PSVIProvider;
import org.w3c.dom.ls.LSResourceResolver;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXNotSupportedException;

Implementation of Validator for W3C XML Schemas.

Author:Kohsuke Kawaguchi, Michael Glavassevich, IBM, Sunitha Reddy
/** * <p>Implementation of Validator for W3C XML Schemas.</p> * * @author Kohsuke Kawaguchi * @author Michael Glavassevich, IBM * @author Sunitha Reddy */
final class ValidatorImpl extends Validator implements PSVIProvider { // // Data //
Component manager.
/** Component manager. **/
private XMLSchemaValidatorComponentManager fComponentManager;
SAX validator helper.
/** SAX validator helper. **/
private ValidatorHandlerImpl fSAXValidatorHelper;
DOM validator helper.
/** DOM validator helper. **/
private DOMValidatorHelper fDOMValidatorHelper;
Stream validator helper.
/** Stream validator helper. **/
private StreamValidatorHelper fStreamValidatorHelper;
StAX validator helper.
/** StAX validator helper. **/
private StAXValidatorHelper fStaxValidatorHelper;
Flag for tracking whether features/properties changed since last reset.
/** Flag for tracking whether features/properties changed since last reset. */
private boolean fConfigurationChanged = false;
Flag for tracking whether the error handler changed since last reset.
/** Flag for tracking whether the error handler changed since last reset. */
private boolean fErrorHandlerChanged = false;
Flag for tracking whether the resource resolver changed since last reset.
/** Flag for tracking whether the resource resolver changed since last reset. */
private boolean fResourceResolverChanged = false;
Support current-element-node property
/** Support current-element-node property */
private static final String CURRENT_ELEMENT_NODE = Constants.XERCES_PROPERTY_PREFIX + Constants.CURRENT_ELEMENT_NODE_PROPERTY; public ValidatorImpl(XSGrammarPoolContainer grammarContainer) { fComponentManager = new XMLSchemaValidatorComponentManager(grammarContainer); setErrorHandler(null); setResourceResolver(null); } @Override public void validate(Source source, Result result) throws SAXException, IOException { if (source instanceof SAXSource) { // Hand off to SAX validator helper. if (fSAXValidatorHelper == null) { fSAXValidatorHelper = new ValidatorHandlerImpl(fComponentManager); } fSAXValidatorHelper.validate(source, result); } else if (source instanceof DOMSource) { // Hand off to DOM validator helper. if (fDOMValidatorHelper == null) { fDOMValidatorHelper = new DOMValidatorHelper(fComponentManager); } fDOMValidatorHelper.validate(source, result); } else if (source instanceof StreamSource) { // Hand off to stream validator helper. if (fStreamValidatorHelper == null) { fStreamValidatorHelper = new StreamValidatorHelper(fComponentManager); } fStreamValidatorHelper.validate(source, result); } else if (source instanceof StAXSource) { // Hand off to stax validator helper. if (fStaxValidatorHelper == null) { fStaxValidatorHelper = new StAXValidatorHelper(fComponentManager); } fStaxValidatorHelper.validate(source, result); } // Source parameter cannot be null. else if (source == null) { throw new NullPointerException(JAXPValidationMessageFormatter.formatMessage(fComponentManager.getLocale(), "SourceParameterNull", null)); } // Source parameter must be a SAXSource, DOMSource or StreamSource else { throw new IllegalArgumentException(JAXPValidationMessageFormatter.formatMessage(fComponentManager.getLocale(), "SourceNotAccepted", new Object [] {source.getClass().getName()})); } } @Override public void setErrorHandler(ErrorHandler errorHandler) { fErrorHandlerChanged = (errorHandler != null); fComponentManager.setErrorHandler(errorHandler); } @Override public ErrorHandler getErrorHandler() { return fComponentManager.getErrorHandler(); } @Override public void setResourceResolver(LSResourceResolver resourceResolver) { fResourceResolverChanged = (resourceResolver != null); fComponentManager.setResourceResolver(resourceResolver); } @Override public LSResourceResolver getResourceResolver() { return fComponentManager.getResourceResolver(); } @Override public boolean getFeature(String name) throws SAXNotRecognizedException, SAXNotSupportedException { if (name == null) { throw new NullPointerException(); } try { return fComponentManager.getFeature(name); } catch (XMLConfigurationException e) { final String identifier = e.getIdentifier(); final String key = e.getType() == Status.NOT_RECOGNIZED ? "feature-not-recognized" : "feature-not-supported"; throw new SAXNotRecognizedException( SAXMessageFormatter.formatMessage(fComponentManager.getLocale(), key, new Object [] {identifier})); } } @Override public void setFeature(String name, boolean value) throws SAXNotRecognizedException, SAXNotSupportedException { if (name == null) { throw new NullPointerException(); } try { fComponentManager.setFeature(name, value); } catch (XMLConfigurationException e) { final String identifier = e.getIdentifier(); final String key; if (e.getType() == Status.NOT_ALLOWED) { //for now, the identifier can only be (XMLConstants.FEATURE_SECURE_PROCESSING) throw new SAXNotSupportedException( SAXMessageFormatter.formatMessage(fComponentManager.getLocale(), "jaxp-secureprocessing-feature", null)); } else if (e.getType() == Status.NOT_RECOGNIZED) { key = "feature-not-recognized"; } else { key = "feature-not-supported"; } throw new SAXNotRecognizedException( SAXMessageFormatter.formatMessage(fComponentManager.getLocale(), key, new Object [] {identifier})); } fConfigurationChanged = true; } @Override public Object getProperty(String name) throws SAXNotRecognizedException, SAXNotSupportedException { if (name == null) { throw new NullPointerException(); } //Support current-element-node; return current node if DOMSource is used. if (CURRENT_ELEMENT_NODE.equals(name)) { return (fDOMValidatorHelper != null) ? fDOMValidatorHelper.getCurrentElement() : null; } try { return fComponentManager.getProperty(name); } catch (XMLConfigurationException e) { final String identifier = e.getIdentifier(); final String key = e.getType() == Status.NOT_RECOGNIZED ? "property-not-recognized" : "property-not-supported"; throw new SAXNotRecognizedException( SAXMessageFormatter.formatMessage(fComponentManager.getLocale(), key, new Object [] {identifier})); } } @Override public void setProperty(String name, Object object) throws SAXNotRecognizedException, SAXNotSupportedException { if (name == null) { throw new NullPointerException(); } try { fComponentManager.setProperty(name, object); } catch (XMLConfigurationException e) { final String identifier = e.getIdentifier(); final String key = e.getType() == Status.NOT_RECOGNIZED ? "property-not-recognized" : "property-not-supported"; throw new SAXNotRecognizedException( SAXMessageFormatter.formatMessage(fComponentManager.getLocale(), key, new Object [] {identifier})); } fConfigurationChanged = true; } @Override public void reset() { // avoid resetting features and properties if the state the validator // is currently in, is the same as it will be after reset. if (fConfigurationChanged) { fComponentManager.restoreInitialState(); setErrorHandler(null); setResourceResolver(null); fConfigurationChanged = false; fErrorHandlerChanged = false; fResourceResolverChanged = false; } else { if (fErrorHandlerChanged) { setErrorHandler(null); fErrorHandlerChanged = false; } if (fResourceResolverChanged) { setResourceResolver(null); fResourceResolverChanged = false; } } } /* * PSVIProvider methods */ @Override public ElementPSVI getElementPSVI() { return (fSAXValidatorHelper != null) ? fSAXValidatorHelper.getElementPSVI() : null; } @Override public AttributePSVI getAttributePSVI(int index) { return (fSAXValidatorHelper != null) ? fSAXValidatorHelper.getAttributePSVI(index) : null; } @Override public AttributePSVI getAttributePSVIByName(String uri, String localname) { return (fSAXValidatorHelper != null) ? fSAXValidatorHelper.getAttributePSVIByName(uri, localname) : null; } } // ValidatorImpl