| /* |
| * Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0, which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| package org.glassfish.jaxb.runtime.v2.runtime.unmarshaller; |
| |
| import org.glassfish.jaxb.runtime.v2.util.FatalAdapter; |
| import org.glassfish.jaxb.core.v2.runtime.unmarshaller.LocatorEx; |
| import org.xml.sax.SAXException; |
| |
| import javax.xml.namespace.NamespaceContext; |
| import javax.xml.validation.Schema; |
| import javax.xml.validation.ValidatorHandler; |
| |
| /** |
| * {@link XmlVisitor} decorator that validates the events by using JAXP validation API. |
| * |
| * @author Kohsuke Kawaguchi |
| */ |
| final class ValidatingUnmarshaller implements XmlVisitor, XmlVisitor.TextPredictor { |
| |
| private final XmlVisitor next; |
| private final ValidatorHandler validator; |
| private NamespaceContext nsContext = null; |
| |
| /** |
| * {@link TextPredictor} of the next {@link XmlVisitor}. |
| */ |
| private final TextPredictor predictor; |
| |
| private char[] buf = new char[256]; |
| |
| /** |
| * Creates a new instance of ValidatingUnmarshaller. |
| */ |
| public ValidatingUnmarshaller( Schema schema, XmlVisitor next ) { |
| this.validator = schema.newValidatorHandler(); |
| this.next = next; |
| this.predictor = next.getPredictor(); |
| // if the user bothers to use a validator, make validation errors fatal |
| // so that it will abort unmarshalling. |
| validator.setErrorHandler(new FatalAdapter(getContext())); |
| } |
| |
| public void startDocument(LocatorEx locator, NamespaceContext nsContext) throws SAXException { |
| this.nsContext = nsContext; |
| validator.setDocumentLocator(locator); |
| validator.startDocument(); |
| next.startDocument(locator,nsContext); |
| } |
| |
| public void endDocument() throws SAXException { |
| this.nsContext = null; |
| validator.endDocument(); |
| next.endDocument(); |
| } |
| |
| public void startElement(TagName tagName) throws SAXException { |
| if(nsContext != null) { |
| String tagNamePrefix = tagName.getPrefix().intern(); |
| if(tagNamePrefix != "") { |
| validator.startPrefixMapping(tagNamePrefix, nsContext.getNamespaceURI(tagNamePrefix)); |
| } |
| } |
| validator.startElement(tagName.uri,tagName.local,tagName.getQname(),tagName.atts); |
| next.startElement(tagName); |
| } |
| |
| public void endElement(TagName tagName ) throws SAXException { |
| validator.endElement(tagName.uri,tagName.local,tagName.getQname()); |
| next.endElement(tagName); |
| } |
| |
| public void startPrefixMapping(String prefix, String nsUri) throws SAXException { |
| validator.startPrefixMapping(prefix,nsUri); |
| next.startPrefixMapping(prefix,nsUri); |
| } |
| |
| public void endPrefixMapping(String prefix) throws SAXException { |
| validator.endPrefixMapping(prefix); |
| next.endPrefixMapping(prefix); |
| } |
| |
| public void text( CharSequence pcdata ) throws SAXException { |
| int len = pcdata.length(); |
| if(buf.length<len) { |
| buf = new char[len]; |
| } |
| for( int i=0;i<len; i++ ) |
| buf[i] = pcdata.charAt(i); // isn't this kinda slow? |
| |
| validator.characters(buf,0,len); |
| if(predictor.expectText()) |
| next.text(pcdata); |
| } |
| |
| public UnmarshallingContext getContext() { |
| return next.getContext(); |
| } |
| |
| public TextPredictor getPredictor() { |
| return this; |
| } |
| |
| // should be always invoked through TextPredictor |
| @Deprecated |
| public boolean expectText() { |
| // validator needs to make sure that there's no text |
| // even when it's not expected. So always have them |
| // send text, ignoring optimization hints from the unmarshaller |
| return true; |
| } |
| } |