diff options
Diffstat (limited to 'bundles/org.eclipse.wst.xml.core/src-validation/org/eclipse/wst/xml/core/internal/validation/ValidatorHelper.java')
| -rw-r--r-- | bundles/org.eclipse.wst.xml.core/src-validation/org/eclipse/wst/xml/core/internal/validation/ValidatorHelper.java | 361 |
1 files changed, 0 insertions, 361 deletions
diff --git a/bundles/org.eclipse.wst.xml.core/src-validation/org/eclipse/wst/xml/core/internal/validation/ValidatorHelper.java b/bundles/org.eclipse.wst.xml.core/src-validation/org/eclipse/wst/xml/core/internal/validation/ValidatorHelper.java deleted file mode 100644 index 57cae082d0..0000000000 --- a/bundles/org.eclipse.wst.xml.core/src-validation/org/eclipse/wst/xml/core/internal/validation/ValidatorHelper.java +++ /dev/null @@ -1,361 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 2008 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.xml.core.internal.validation; - -import java.io.InputStream; -import java.io.Reader; -import java.net.URL; -import java.util.List; -import java.util.Vector; - -import org.eclipse.wst.common.uriresolver.internal.provisional.URIResolver; -import org.eclipse.wst.common.uriresolver.internal.provisional.URIResolverPlugin; -import org.eclipse.wst.common.uriresolver.internal.util.URIHelper; -import org.xml.sax.Attributes; -import org.xml.sax.InputSource; -import org.xml.sax.SAXException; -import org.xml.sax.SAXParseException; -import org.xml.sax.XMLReader; -import org.xml.sax.ext.LexicalHandler; - -import com.ibm.icu.util.StringTokenizer; - -/** - * A helper class for the XML validator. - * - * @author Craig Salter, IBM - * @author Lawrence Mandel, IBM - */ -public class ValidatorHelper -{ - public List namespaceURIList = new Vector(); - public boolean isGrammarEncountered = false; - public boolean isDTDEncountered = false; - public boolean isNamespaceEncountered = false; - public String schemaLocationString = ""; //$NON-NLS-1$ - public int numDTDElements = 0; - - /** - * Constructor. - */ - public ValidatorHelper() - { - } - - /** - * Create an XML Reader. - * - * @return An XML Reader if one can be created or null. - * @throws Exception - */ - protected XMLReader createXMLReader(String uri) throws Exception - { - XMLReader reader = null; - - reader = new org.apache.xerces.parsers.SAXParser(); - reader.setFeature("http://apache.org/xml/features/continue-after-fatal-error", false); //$NON-NLS-1$ - reader.setFeature("http://xml.org/sax/features/namespace-prefixes", true); //$NON-NLS-1$ - reader.setFeature("http://xml.org/sax/features/namespaces", false); //$NON-NLS-1$ - reader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false); //$NON-NLS-1$ - reader.setContentHandler(new MyContentHandler(uri)); - reader.setErrorHandler(new InternalErrorHandler()); - - LexicalHandler lexicalHandler = new LexicalHandler() - { - public void startDTD (String name, String publicId, String systemId) - { - isGrammarEncountered = true; - isDTDEncountered = true; - } - - public void endDTD() throws SAXException - { - } - - public void startEntity(String name) throws SAXException - { - } - - public void endEntity(String name) throws SAXException - { - } - - public void startCDATA() throws SAXException - { - } - - public void endCDATA() throws SAXException - { - } - - public void comment (char ch[], int start, int length) throws SAXException - { - } - }; - reader.setProperty("http://xml.org/sax/properties/lexical-handler", lexicalHandler); //$NON-NLS-1$ - - return reader; - } - - /** - * An error handler to suppress error and warning information. - */ - private class InternalErrorHandler implements org.xml.sax.ErrorHandler - { - public InternalErrorHandler() - { - super(); - } - - public void error(SAXParseException exception) throws SAXException - { - } - - public void fatalError(SAXParseException exception) throws SAXException - { - } - - public void warning(SAXParseException exception) throws SAXException - { - } - } - - - /** - * Figures out the information needed for validation. - * - * @param uri The uri of the file to validate. - * @param uriResolver A helper to resolve locations. - */ - public void computeValidationInformation(String uri, Reader characterStream, URIResolver uriResolver) - { - try - { - XMLReader reader = createXMLReader(uri); - InputSource inputSource = new InputSource(uri); - inputSource.setCharacterStream(characterStream); - reader.parse(inputSource); - } - catch (Exception e) - { - //System.out.println(e); - } - } - - - - /** - * Handle the content while parsing the file. - */ - class MyContentHandler extends org.xml.sax.helpers.DefaultHandler - { - /* (non-Javadoc) - * @see org.xml.sax.ErrorHandler#error(org.xml.sax.SAXParseException) - */ - boolean isRootElement = true; - String baseURI; - - MyContentHandler(String uri) - { - this.baseURI = uri; - } - - public void error(SAXParseException e) throws SAXException - { - } - /* (non-Javadoc) - * @see org.xml.sax.ErrorHandler#fatalError(org.xml.sax.SAXParseException) - */ - public void fatalError(SAXParseException e) throws SAXException - { - } - /* (non-Javadoc) - * @see org.xml.sax.ErrorHandler#warning(org.xml.sax.SAXParseException) - */ - public void warning(SAXParseException e) throws SAXException - { - } - public String getPrefix(String name) - { - String prefix = null; - int index = name.indexOf(":"); //$NON-NLS-1$ - if (index != -1) - { - prefix = name.substring(0, index); - } - return prefix; - } - - public String getUnprefixedName(String name) - { - int index = name.indexOf(":"); //$NON-NLS-1$ - if (index != -1) - { - name = name.substring(index + 1); - } - return name; - } - - public String getPrefixedName(String prefix, String localName) - { - return prefix != null && prefix.length() > 0 ? prefix + ":" + localName : localName; //$NON-NLS-1$ - } - - public void startElement(String namespaceURI, String localName, String rawName, Attributes atts) - { - //String explicitLocation = null; - if (isRootElement) - { - - isRootElement = false; - int nAtts = atts.getLength(); - String schemaInstancePrefix = null; - for (int i =0; i < nAtts; i++) - { - String attributeName = atts.getQName(i); - if (attributeName.equals("xmlns") || attributeName.startsWith("xmlns:")) //$NON-NLS-1$ //$NON-NLS-2$ - { - isNamespaceEncountered = true; - String value = atts.getValue(i); - if (value.startsWith("http://www.w3.org/") && value.endsWith("/XMLSchema-instance")) //$NON-NLS-1$ //$NON-NLS-2$ - { - schemaInstancePrefix = attributeName.equals("xmlns") ? "" : getUnprefixedName(attributeName); //$NON-NLS-1$ //$NON-NLS-2$ - } - } - } - - String prefix = getPrefix(rawName); - String rootElementNamespaceDeclarationName = (prefix != null && prefix.length() > 0) ? "xmlns:" + prefix : "xmlns"; //$NON-NLS-1$ //$NON-NLS-2$ - String rootElementNamespace = rootElementNamespaceDeclarationName != null ? atts.getValue(rootElementNamespaceDeclarationName) : null; - - String location = null; - - // first we use any 'xsi:schemaLocation' or 'xsi:noNamespaceSchemaLocation' attribute - // to determine a location - if (schemaInstancePrefix != null) - { - location = atts.getValue(getPrefixedName(schemaInstancePrefix, "noNamespaceSchemaLocation")); //$NON-NLS-1$ - if (location == null) - { - String schemaLoc = atts.getValue(getPrefixedName(schemaInstancePrefix, "schemaLocation")); //$NON-NLS-1$ - location = getSchemaLocationForNamespace(schemaLoc, rootElementNamespace); - } - } - if (rootElementNamespace == null) - { - rootElementNamespace = ""; - } - - location = URIResolverPlugin.createResolver().resolve(baseURI, rootElementNamespace, location); - location = URIResolverPlugin.createResolver().resolvePhysicalLocation(baseURI, rootElementNamespace, location); - if (location != null) - { - location = URIHelper.addImpliedFileProtocol(location); - } - - schemaLocationString = location; - - if (location != null) - { - InputStream is = null; - try - { - URL url = new URL(location); - is = url.openStream(); - isGrammarEncountered = true; - } - catch(Exception e) - { - // Do nothing. - } - finally - { - if(is != null) - { - try - { - is.close(); - } - catch(Exception e) - { - // Do nothing. - } - } - } - } - } - } - /* (non-Javadoc) - * @see org.xml.sax.ext.DeclHandler#elementDecl(java.lang.String, java.lang.String) - */ - public void elementDecl(String name, String model) - { - numDTDElements++; - } - - // The xsiSchemaLocationValue is a list of namespace/location pairs that are separated by whitespace - // this method walks the list of pairs looking for the specified namespace and returns the associated - // location. - // - protected String getSchemaLocationForNamespace(String xsiSchemaLocationValue, String namespace) - { - String result = null; - if (xsiSchemaLocationValue != null && namespace != null) - { - - StringTokenizer st = new StringTokenizer(xsiSchemaLocationValue); - while(st.hasMoreTokens()) - { - if(st.nextToken().equals(namespace)) - { - if(st.hasMoreTokens()) - { - result = st.nextToken(); - } - } - else - { - if(st.hasMoreTokens()) - { - st.nextToken(); - } - } - } - } - return result; - } - } - - - /** - * Replace all instances in the string of the old pattern with the new pattern. - * - * @param string The string to replace the patterns in. - * @param oldPattern The old pattern to replace. - * @param newPattern The pattern used for replacement. - * @return The modified string with all occurrances of oldPattern replaced by new Pattern. - */ - protected static String replace(String string, String oldPattern, String newPattern) - { - int index = 0; - while (index != -1) - { - index = string.indexOf(oldPattern, index); - if (index != -1) - { - string = string.substring(0, index) + newPattern + string.substring(index + oldPattern.length()); - index = index + oldPattern.length(); - } - } - return string; - } -} |