com.sun.xml.ws.config.metro.SimpleFeatureReader Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2019 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 com.sun.xml.ws.config.metro;
import com.sun.istack.logging.Logger;
import com.sun.xml.ws.config.metro.dev.FeatureReader;
import com.sun.xml.ws.config.metro.util.ParserUtil;
import java.util.Iterator;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.events.Attribute;
import javax.xml.stream.events.EndElement;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;
import javax.xml.ws.WebServiceException;
import javax.xml.ws.WebServiceFeature;
/**
* Parse a feature with no further attributes than "enabled" and return it as
* a WebServiceFeature instance.
*
* @author Fabian Ritzmann
*/
public abstract class SimpleFeatureReader implements FeatureReader {
private static final Logger LOGGER = Logger.getLogger(SimpleFeatureReader.class);
public T parse(final XMLEventReader reader) throws WebServiceException {
try {
final StartElement element = reader.nextEvent().asStartElement();
boolean attributeEnabled = true;
final QName elementName = element.getName();
final Iterator iterator = element.getAttributes();
while (iterator.hasNext()) {
final Attribute nextAttribute = (Attribute) iterator.next();
final QName attributeName = nextAttribute.getName();
if (ENABLED_ATTRIBUTE_NAME.equals(attributeName)) {
attributeEnabled = ParserUtil.parseBooleanValue(nextAttribute.getValue());
}
else {
// TODO logging message
throw LOGGER.logSevereException(new WebServiceException("Unexpected attribute, was " + nextAttribute));
}
}
loop:
while (reader.hasNext()) {
try {
final XMLEvent event = reader.nextEvent();
switch (event.getEventType()) {
case XMLStreamConstants.COMMENT:
break; // skipping the comments and start document events
case XMLStreamConstants.CHARACTERS:
if (event.asCharacters().isWhiteSpace()) {
break;
}
else {
// TODO: logging message
throw LOGGER.logSevereException(new WebServiceException("No character data allowed, was " + event.asCharacters()));
}
case XMLStreamConstants.END_ELEMENT:
final EndElement endElement = event.asEndElement();
if (!elementName.equals(endElement.getName())) {
// TODO logging message
throw LOGGER.logSevereException(new WebServiceException("Expected end element"));
}
break loop;
default:
throw LOGGER.logSevereException(new WebServiceException("Unexpected event, was " + event));
}
} catch (XMLStreamException e) {
// TODO logging message
throw LOGGER.logSevereException(new WebServiceException("Failed to unmarshal XML document", e));
}
}
return createFeature(attributeEnabled);
} catch (XMLStreamException e) {
// TODO logging message
throw LOGGER.logSevereException(new WebServiceException("Failed to unmarshal XML document", e));
}
}
/**
* Instantiate the proper feature class.
*/
protected abstract T createFeature(boolean enabled) throws WebServiceException;
}