diff options
Diffstat (limited to 'java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java')
| -rw-r--r-- | java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java | 409 |
1 files changed, 0 insertions, 409 deletions
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java deleted file mode 100644 index 6de25d4eeb..0000000000 --- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java +++ /dev/null @@ -1,409 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more 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 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.contribution.processor; - -import java.util.logging.Logger; - -import javax.xml.namespace.NamespaceContext; -import javax.xml.namespace.QName; -import javax.xml.stream.Location; -import javax.xml.stream.XMLStreamException; -import javax.xml.stream.XMLStreamReader; -import javax.xml.stream.util.StreamReaderDelegate; -import javax.xml.validation.Schema; -import javax.xml.validation.ValidatorHandler; - -import org.apache.tuscany.sca.monitor.Monitor; -import org.apache.tuscany.sca.monitor.Problem; -import org.apache.tuscany.sca.monitor.Problem.Severity; -import org.xml.sax.Attributes; -import org.xml.sax.ErrorHandler; -import org.xml.sax.Locator; -import org.xml.sax.SAXException; -import org.xml.sax.SAXParseException; -import org.xml.sax.helpers.AttributesImpl; - -/** - * - * A validating XMLStreamReader that reports XMLSchema validation errors. - * - * @version $Rev$ $Date$ - */ -class ValidatingXMLStreamReader extends StreamReaderDelegate implements XMLStreamReader { - - private static final Logger logger = Logger.getLogger(ValidatingXMLStreamReader.class.getName()); - - private ValidatorHandler handler; - private Schema schema; - private Monitor monitor; - - /** - * Constructs a new ValidatingXMLStreamReader. - * - * @param reader - * @param schema - * @throws XMLStreamException - */ - ValidatingXMLStreamReader(XMLStreamReader reader, Schema schema, Monitor monitor) throws XMLStreamException { - super(reader); - this.monitor = monitor; - this.schema = schema; - } - - void setMonitor(Monitor monitor) { - this.monitor = monitor; - } - - private synchronized ValidatorHandler getHandler() throws XMLStreamException { - if (schema == null || handler!=null) { - return handler; - } - handler = schema.newValidatorHandler(); - handler.setDocumentLocator(new LocatorAdapter()); - try { - handler.setFeature("http://xml.org/sax/features/namespace-prefixes", true); - } catch (SAXException e) { - XMLStreamException xse = new XMLStreamException(e); - error("XMLStreamException", handler, xse); - throw xse; - } - - // These validation errors are just warnings for us as we want to support - // running from an XML document with XSD validation errors, as long as we can - // get the metadata we need from the document - handler.setErrorHandler(new ErrorHandler() { - private String getMessage(SAXParseException e) { - return "XMLSchema validation problem in: " + getArtifactName( e.getSystemId() ) + ", line: " + e.getLineNumber() + ", column: " + e.getColumnNumber() + "\n" + e.getMessage(); - } - - public void error(SAXParseException exception) throws SAXException { - if (ValidatingXMLStreamReader.this.monitor == null) - logger.warning(getMessage(exception)); - else - ValidatingXMLStreamReader.this.error("SchemaError", ValidatingXMLStreamReader.this.getClass(), getArtifactName( exception.getSystemId() ), - exception.getLineNumber(), exception.getColumnNumber(), exception.getMessage()); - } - - public void fatalError(SAXParseException exception) throws SAXException { - if (ValidatingXMLStreamReader.this.monitor == null) - logger.warning(getMessage(exception)); - else - ValidatingXMLStreamReader.this.error("SchemaFatalError", ValidatingXMLStreamReader.this.getClass(), getArtifactName( exception.getSystemId() ), - exception.getLineNumber(), exception.getColumnNumber(), exception.getMessage()); - } - - public void warning(SAXParseException exception) throws SAXException { - if (ValidatingXMLStreamReader.this.monitor == null) - logger.warning(getMessage(exception)); - else - ValidatingXMLStreamReader.this.warning("SchemaWarning", ValidatingXMLStreamReader.this.getClass(), getArtifactName( exception.getSystemId() ), - exception.getLineNumber(), exception.getColumnNumber(), exception.getMessage()); - } - - private String getArtifactName( String input ) { - String artifactName = null; - if( ValidatingXMLStreamReader.this.monitor != null ) { - artifactName = ValidatingXMLStreamReader.this.monitor.getArtifactName(); - } - if (artifactName == null){ - artifactName = input; - } - return artifactName; - } - }); - return handler; - } - - /** - * Report a warning. - * - * @param problems - * @param message - * @param model - */ - private void warning(String message, Object model, Object... messageParameters) { - if (monitor != null) { - Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters); - monitor.problem(problem); - } - } - - /** - * Report a error. - * - * @param problems - * @param message - * @param model - */ - private void error(String message, Object model, Object... messageParameters) { - if (monitor != null) { - Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters); - monitor.problem(problem); - } - } - - @Override - public int next() throws XMLStreamException { - if (getHandler() == null) { - return super.next(); - } - - int event = super.getEventType(); - try { - if (event == START_DOCUMENT) { - // We need to trigger the startDocument() - handler.startDocument(); - } - event = super.next(); - validate(event); - } catch (SAXException e) { - XMLStreamException xse = new XMLStreamException(e.getMessage(), e); - error("XMLStreamException", handler, xse); - throw xse; - } - return event; - } - - private void validate(int event) throws SAXException { - switch (event) { - case START_DOCUMENT: - handler.startDocument(); - break; - case START_ELEMENT: - handleStartElement(); - break; - case PROCESSING_INSTRUCTION: - handler.processingInstruction(super.getPITarget(), super.getPIData()); - break; - case CHARACTERS: - case CDATA: - case SPACE: - case ENTITY_REFERENCE: - handler.characters(super.getTextCharacters(), super.getTextStart(), super.getTextLength()); - break; - case END_ELEMENT: - handleEndElement(); - break; - case END_DOCUMENT: - handler.endDocument(); - break; - } - } - - @Override - public int nextTag() throws XMLStreamException { - if (getHandler() == null) { - return super.nextTag(); - } - while (true) { - int event = super.getEventType(); - try { - if (event == START_DOCUMENT) { - // We need to trigger the startDocument() - handler.startDocument(); - } - event = super.next(); - validate(event); - } catch (SAXException e) { - XMLStreamException xse = new XMLStreamException(e); - error("XMLStreamException", handler, xse); - throw xse; - } - - if ((event == CHARACTERS && isWhiteSpace()) // skip whitespace - || (event == CDATA && isWhiteSpace()) - // skip whitespace - || event == SPACE - || event == PROCESSING_INSTRUCTION - || event == COMMENT) { - continue; - } - if (event != START_ELEMENT && event != END_ELEMENT) { - throw new XMLStreamException("expected start or end tag", getLocation()); - } - return event; - } - } - - @Override - public String getElementText() throws XMLStreamException { - if (getHandler() == null) { - return super.getElementText(); - } - - if (getEventType() != START_ELEMENT) { - return super.getElementText(); - } - StringBuffer text = new StringBuffer(); - - for (;;) { - int event = next(); - switch (event) { - case END_ELEMENT: - return text.toString(); - - case COMMENT: - case PROCESSING_INSTRUCTION: - continue; - - case CHARACTERS: - case CDATA: - case SPACE: - case ENTITY_REFERENCE: - text.append(getText()); - break; - - default: - break; - } - } - } - - @Override - public NamespaceContext getNamespaceContext(){ - return super.getNamespaceContext(); - } - - /** - * Handle a start element event. - * - * @throws SAXException - */ - private void handleStartElement() throws SAXException { - - // send startPrefixMapping events immediately before startElement event - int nsCount = super.getNamespaceCount(); - for (int i = 0; i < nsCount; i++) { - String prefix = super.getNamespacePrefix(i); - if (prefix == null) { // true for default namespace - prefix = ""; - } - handler.startPrefixMapping(prefix, super.getNamespaceURI(i)); - } - - // fire startElement - QName qname = super.getName(); - String prefix = qname.getPrefix(); - String rawname; - if (prefix == null || prefix.length() == 0) { - rawname = qname.getLocalPart(); - } else { - rawname = prefix + ':' + qname.getLocalPart(); - } - Attributes attrs = getAttributes(); - handler.startElement(qname.getNamespaceURI(), qname.getLocalPart(), rawname, attrs); - } - - /** - * Handle an endElement event. - * - * @throws SAXException - */ - private void handleEndElement() throws SAXException { - - // fire endElement - QName qname = super.getName(); - handler.endElement(qname.getNamespaceURI(), qname.getLocalPart(), qname.toString()); - - // send endPrefixMapping events immediately after endElement event - // we send them in the opposite order to that returned but this is not - // actually required by SAX - int nsCount = super.getNamespaceCount(); - for (int i = nsCount - 1; i >= 0; i--) { - String prefix = super.getNamespacePrefix(i); - if (prefix == null) { // true for default namespace - prefix = ""; - } - handler.endPrefixMapping(prefix); - } - } - - /** - * Get the attributes associated with the current START_ELEMENT event. - * - * @return the StAX attributes converted to org.xml.sax.Attributes - */ - private Attributes getAttributes() { - AttributesImpl attrs = new AttributesImpl(); - - // add namespace declarations - for (int i = 0; i < super.getNamespaceCount(); i++) { - String prefix = super.getNamespacePrefix(i); - String uri = super.getNamespaceURI(i); - if (prefix == null) { - attrs.addAttribute("", "", "xmlns", "CDATA", uri); - } else { - attrs.addAttribute("", "", "xmlns:" + prefix, "CDATA", uri); - } - } - - // Regular attributes - for (int i = 0; i < super.getAttributeCount(); i++) { - String uri = super.getAttributeNamespace(i); - if (uri == null) { - uri = ""; - } - String localName = super.getAttributeLocalName(i); - String prefix = super.getAttributePrefix(i); - String qname; - if (prefix == null || prefix.length() == 0) { - qname = localName; - } else { - qname = prefix + ':' + localName; - } - String type = super.getAttributeType(i); - String value = super.getAttributeValue(i); - - attrs.addAttribute(uri, localName, qname, type, value); - } - - return attrs; - } - - /** - * Adapter for mapping Locator information. - */ - private final class LocatorAdapter implements Locator { - - private LocatorAdapter() { - } - - public int getColumnNumber() { - Location location = getLocation(); - return location == null ? 0 : location.getColumnNumber(); - } - - public int getLineNumber() { - Location location = getLocation(); - return location == null ? 0 : location.getLineNumber(); - } - - public String getPublicId() { - Location location = getLocation(); - return location == null ? "" : location.getPublicId(); - } - - public String getSystemId() { - Location location = getLocation(); - return location == null ? "" : location.getSystemId(); - } - } - -} |