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package com.sun.org.apache.xerces.internal.jaxp.validation;
import java.io.IOException;
import javax.xml.XMLConstants;
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.StAXResult;
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
* @author Michael Glavassevich, IBM
* @author Sunitha Reddy
* @version $Id: ValidatorImpl.java,v 1.10 2010-11-01 04:40:08 joehw Exp $
*/
final class ValidatorImpl extends Validator implements PSVIProvider {
//
// Data
//
/** Component manager. **/
private XMLSchemaValidatorComponentManager fComponentManager;
/** SAX validator helper. **/
private ValidatorHandlerImpl fSAXValidatorHelper;
/** DOM validator helper. **/
private DOMValidatorHelper fDOMValidatorHelper;
/** Stream validator helper. **/
private StreamValidatorHelper fStreamValidatorHelper;
/** StAX validator helper. **/
private StAXValidatorHelper fStaxValidatorHelper;
/** 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. */
private boolean fErrorHandlerChanged = false;
/** Flag for tracking whether the resource resolver changed since last reset. */
private boolean fResourceResolverChanged = false;
/** 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);
}
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()}));
}
}
public void setErrorHandler(ErrorHandler errorHandler) {
fErrorHandlerChanged = (errorHandler != null);
fComponentManager.setErrorHandler(errorHandler);
}
public ErrorHandler getErrorHandler() {
return fComponentManager.getErrorHandler();
}
public void setResourceResolver(LSResourceResolver resourceResolver) {
fResourceResolverChanged = (resourceResolver != null);
fComponentManager.setResourceResolver(resourceResolver);
}
public LSResourceResolver getResourceResolver() {
return fComponentManager.getResourceResolver();
}
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}));
}
}
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;
}
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}));
}
}
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;
}
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
*/
public ElementPSVI getElementPSVI() {
return (fSAXValidatorHelper != null) ? fSAXValidatorHelper.getElementPSVI() : null;
}
public AttributePSVI getAttributePSVI(int index) {
return (fSAXValidatorHelper != null) ? fSAXValidatorHelper.getAttributePSVI(index) : null;
}
public AttributePSVI getAttributePSVIByName(String uri, String localname) {
return (fSAXValidatorHelper != null) ? fSAXValidatorHelper.getAttributePSVIByName(uri, localname) : null;
}
} // ValidatorImpl