diff options
Diffstat (limited to 'bundles/org.eclipse.wst.dtd.core/src-validation/org/eclipse/wst/dtd/core/internal/validation/Validator.java')
| -rw-r--r-- | bundles/org.eclipse.wst.dtd.core/src-validation/org/eclipse/wst/dtd/core/internal/validation/Validator.java | 465 |
1 files changed, 0 insertions, 465 deletions
diff --git a/bundles/org.eclipse.wst.dtd.core/src-validation/org/eclipse/wst/dtd/core/internal/validation/Validator.java b/bundles/org.eclipse.wst.dtd.core/src-validation/org/eclipse/wst/dtd/core/internal/validation/Validator.java deleted file mode 100644 index 51fea6d9b7..0000000000 --- a/bundles/org.eclipse.wst.dtd.core/src-validation/org/eclipse/wst/dtd/core/internal/validation/Validator.java +++ /dev/null @@ -1,465 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 2004 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ - -package org.eclipse.wst.dtd.core.internal.validation; - -import java.io.IOException; -import java.io.StringReader; -import java.net.MalformedURLException; -import java.net.URL; -import java.util.ArrayList; -import java.util.Enumeration; -import java.util.Hashtable; -import java.util.List; -import java.util.StringTokenizer; -import javax.xml.parsers.ParserConfigurationException; -import javax.xml.parsers.SAXParser; -import javax.xml.parsers.SAXParserFactory; -import org.eclipse.osgi.util.NLS; -import org.eclipse.wst.common.uriresolver.internal.provisional.URIResolver; -import org.eclipse.wst.common.uriresolver.internal.provisional.URIResolverPlugin; -import org.eclipse.wst.xml.core.internal.validation.core.ValidationInfo; -import org.eclipse.wst.xml.core.internal.validation.core.ValidationReport; -import org.xml.sax.ContentHandler; -import org.xml.sax.EntityResolver; -import org.xml.sax.ErrorHandler; -import org.xml.sax.InputSource; -import org.xml.sax.Locator; -import org.xml.sax.SAXException; -import org.xml.sax.SAXParseException; -import org.xml.sax.XMLReader; -import org.xml.sax.ext.DeclHandler; -import org.xml.sax.ext.LexicalHandler; -import org.xml.sax.helpers.DefaultHandler; - -/** - * DTD validation. - * - * @author Lawrence Mandel, IBM - */ -public class Validator { - /** - * An entity resolver that wraps a URI resolver. - * - * @author Lawrence Mandel, IBM - */ - class DTDEntityResolver implements EntityResolver { - private String fBaseLocation = null; - private URIResolver fURIResolver = null; - - /** - * Constructor. - * - * @param idresolver - * The idresolver this entity resolver wraps. - * @param baselocation - * The base location to resolve with. - */ - public DTDEntityResolver(URIResolver uriresolver, String baselocation) { - this.fURIResolver = uriresolver; - - // TODO cs: we never seem to set a URIResolver - // I create one here up front just incase - // - if (fURIResolver == null) - { - fURIResolver = URIResolverPlugin.createResolver(); - } - this.fBaseLocation = baselocation; - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.EntityResolver#resolveEntity(java.lang.String, - * java.lang.String) - */ - public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException { - String location = null; - - - if (fBaseLocation.equals(systemId)) { - location = systemId; - } - else { - location = fURIResolver.resolve(fBaseLocation, publicId, systemId); - } - InputSource is = null; - if (location != null && !location.equals("")) //$NON-NLS-1$ - { - try { - String physical = fURIResolver.resolvePhysicalLocation(fBaseLocation, publicId, location); - URL url = new URL(physical); - is = new InputSource(location); - is.setByteStream(url.openStream()); - } - catch (MalformedURLException e) { - throw new IOException(e.getMessage()); - } - catch (Exception e) - { - } - } - return is; - } - } - - /** - * An error handler for DTD validation. - * - * @author Lawrence Mandel, IBM - */ - class DTDErrorHandler implements ErrorHandler { - - private final int ERROR = 0; - private final ValidationInfo fValidationInfo; - - private final int WARNING = 1; - - /** - * Constructor. - * - * @param valinfo - * The validation info object to use to register validation - * messages. - */ - public DTDErrorHandler(ValidationInfo valinfo) { - this.fValidationInfo = valinfo; - } - - /** - * Add a validation message with the given severity. - * - * @param exception - * The exception that contains the information about the - * message. - * @param severity - * The severity of the validation message. - */ - protected void addValidationMessage(SAXParseException exception, int severity) { - if (exception.getSystemId() != null) { - if (severity == WARNING) { - fValidationInfo.addWarning(exception.getLocalizedMessage(), exception.getLineNumber(), exception.getColumnNumber(), exception.getSystemId()); - } - else { - fValidationInfo.addError(exception.getLocalizedMessage(), exception.getLineNumber(), exception.getColumnNumber(), exception.getSystemId()); - } - } - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ErrorHandler#error(org.xml.sax.SAXParseException) - */ - public void error(SAXParseException exception) throws SAXException { - addValidationMessage(exception, ERROR); - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ErrorHandler#fatalError(org.xml.sax.SAXParseException) - */ - public void fatalError(SAXParseException exception) throws SAXException { - addValidationMessage(exception, ERROR); - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ErrorHandler#warning(org.xml.sax.SAXParseException) - */ - public void warning(SAXParseException exception) throws SAXException { - addValidationMessage(exception, WARNING); - } - } - - class MultiHandler extends DefaultHandler implements org.xml.sax.DTDHandler, ContentHandler, LexicalHandler, DeclHandler { - private static final String ELEMENT_MODIFIERS = "*+?"; //$NON-NLS-1$ - - private static final String MODEL_DELIMITERS = ",()| "; //$NON-NLS-1$ - - private List fElemDecls = new ArrayList(); - - private Hashtable fElemRefs = new Hashtable(); - - private List fIgnoreElemModel = new ArrayList(); - - private List fIgnoreElemRefs = new ArrayList(); - - private Locator fLocator = null; - - public MultiHandler() { - fIgnoreElemRefs.add("#PCDATA"); //$NON-NLS-1$ - fIgnoreElemModel.add("ANY"); //$NON-NLS-1$ - fIgnoreElemModel.add("EMPTY"); //$NON-NLS-1$ - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ext.DeclHandler#attributeDecl(java.lang.String, - * java.lang.String, java.lang.String, java.lang.String, - * java.lang.String) - */ - public void attributeDecl(String eName, String aName, String type, String valueDefault, String value) throws SAXException { - // No method impl. - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ext.LexicalHandler#comment(char[], int, int) - */ - public void comment(char[] arg0, int arg1, int arg2) throws SAXException { - // No method impl. - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ext.DeclHandler#elementDecl(java.lang.String, - * java.lang.String) - */ - public void elementDecl(String name, String model) throws SAXException { - // Add this element to the list of declared elements. - fElemDecls.add(name); - - // Return if the element model should be ignored. The model should - // be - // ignored in such cases as when it is equal to EMPTY or ANY. - if (fIgnoreElemModel.contains(model)) { - return; - } - // Add each referenced element to the list of referenced elements - int line = fLocator.getLineNumber(); - int column = fLocator.getColumnNumber(); - String uri = fLocator.getSystemId(); - - StringTokenizer strtok = new StringTokenizer(model, MODEL_DELIMITERS); - while (strtok.hasMoreTokens()) { - String token = strtok.nextToken(); - int tokenlength = token.length(); - if (ELEMENT_MODIFIERS.indexOf(token.charAt(tokenlength - 1)) != -1) { - token = token.substring(0, tokenlength - 1); - // If the token is now empty (it was only ?,* or +) then - // continue. - if (token.length() == 0) { - continue; - } - } - if (fIgnoreElemRefs.contains(token)) { - continue; - } - ElementRefLocation elemLoc = (ElementRefLocation) fElemRefs.get(token); - ElementRefLocation tokenLoc = new ElementRefLocation(line, column, uri, elemLoc); - fElemRefs.put(token, tokenLoc); - } - - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ext.LexicalHandler#endCDATA() - */ - public void endCDATA() throws SAXException { - // No method impl. - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ext.LexicalHandler#endDTD() - */ - public void endDTD() throws SAXException { - // No method impl. - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ext.LexicalHandler#endEntity(java.lang.String) - */ - public void endEntity(String arg0) throws SAXException { - // No method impl. - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ext.DeclHandler#externalEntityDecl(java.lang.String, - * java.lang.String, java.lang.String) - */ - public void externalEntityDecl(String name, String publicId, String systemId) throws SAXException { - // No method impl. - } - - /** - * Get the list of element declarations. - * - * @return The list of element declarations. - */ - public List getElementDeclarations() { - return fElemDecls; - } - - /** - * Get the element references hashtable. - * - * @return The element references hashtable. - */ - public Hashtable getElementReferences() { - return fElemRefs; - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ext.DeclHandler#internalEntityDecl(java.lang.String, - * java.lang.String) - */ - public void internalEntityDecl(String name, String value) throws SAXException { - // No method impl. - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ContentHandler#setDocumentLocator(org.xml.sax.Locator) - */ - public void setDocumentLocator(Locator locator) { - super.setDocumentLocator(locator); - this.fLocator = locator; - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ext.LexicalHandler#startCDATA() - */ - public void startCDATA() throws SAXException { - // No method impl. - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ext.LexicalHandler#startDTD(java.lang.String, - * java.lang.String, java.lang.String) - */ - public void startDTD(String name, String publicId, String systemId) throws SAXException { - // No method impl. - } - - /* - * (non-Javadoc) - * - * @see org.xml.sax.ext.LexicalHandler#startEntity(java.lang.String) - */ - public void startEntity(String name) throws SAXException { - // No method impl. - } - } - - private static Validator _instance = null; - - public static Validator getInstance() { - if (_instance == null) { - _instance = new Validator(); - } - return _instance; - } - - private URIResolver fResolver = null; - - private Validator() { - super(); - } - - /** - * Set the URI resolver to use with XSD validation. - * - * @param uriresolver - * The URI resolver to use. - */ - public void setURIResolver(URIResolver uriresolver) { - this.fResolver = uriresolver; - } - - /** - * Validate the DTD file located at the URI. - * - * @param uri - * The URI of the file to validate. - * @return A validation report for the validation. - */ - public ValidationReport validate(String uri) { - ValidationInfo valinfo = new ValidationInfo(uri); - try { - SAXParser parser = SAXParserFactory.newInstance().newSAXParser(); - XMLReader reader = parser.getXMLReader(); - MultiHandler dtdHandler = new MultiHandler(); - reader.setProperty("http://xml.org/sax/properties/declaration-handler", dtdHandler); //$NON-NLS-1$ - reader.setProperty("http://xml.org/sax/properties/lexical-handler", dtdHandler); //$NON-NLS-1$ - reader.setContentHandler(dtdHandler); - reader.setDTDHandler(dtdHandler); - reader.setErrorHandler(new DTDErrorHandler(valinfo)); - reader.setEntityResolver(new DTDEntityResolver(fResolver, uri)); - String document = "<!DOCTYPE root SYSTEM \"" + uri + "\"><root/>"; //$NON-NLS-1$ //$NON-NLS-2$ - - reader.parse(new InputSource(new StringReader(document))); - - List elemDecls = dtdHandler.getElementDeclarations(); - Hashtable elemRefs = dtdHandler.getElementReferences(); - validateElementReferences(elemDecls, elemRefs, valinfo); - } - catch (ParserConfigurationException e) { - - } - catch (IOException e) { - - } - catch (SAXException e) { - - } - return valinfo; - } - - /** - * Validate the element references in the DTD. An element reference is - * <!ELEMENT elem (elementReference)> - * - * @param elemDecls - * A list of valid element declarations. - * @param elemRefs - * A hashtable containing element references as keys and - * locations in the document as values. - * @param valinfo - * The validation info object to store validation information. - */ - private void validateElementReferences(List elemDecls, Hashtable elemRefs, ValidationInfo valinfo) { - Enumeration keys = elemRefs.keys(); - while (keys.hasMoreElements()) { - String elemRef = (String) keys.nextElement(); - // If the element hasn't been declared create an error. - if (!elemDecls.contains(elemRef)) { - ElementRefLocation elemLoc = (ElementRefLocation) elemRefs.get(elemRef); - do { - valinfo.addError(NLS.bind(DTDValidationMessages._ERROR_REF_ELEMENT_UNDEFINED, "'" + elemRef + "'"), elemLoc.getLine(), elemLoc.getColumn(), elemLoc.getURI()); //$NON-NLS-1$ //$NON-NLS-2$ - elemLoc = elemLoc.getNext(); - } - while (elemLoc != null); - } - } - } -} |