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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2009-2013 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
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* If you wish your version of this file to be governed by only the CDDL or
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* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
// Portions Copyright [2019] [Payara Foundation and/or its affiliates]
package org.glassfish.ejb.embedded;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.EOFException;
import java.util.Arrays;
import java.util.Set;
import java.util.HashSet;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLEventFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLEventWriter;
import javax.xml.stream.events.XMLEvent;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.EndElement;
import javax.xml.stream.events.Attribute;
import javax.xml.namespace.QName;
import com.sun.enterprise.util.i18n.StringManager;
import com.sun.enterprise.util.io.FileUtils;
/**
*/
public class DomainXmlTransformer {
private File in;
private File out;
private final XMLEventFactory xmlEventFactory = XMLEventFactory.newInstance();
private final XMLOutputFactory xof = XMLOutputFactory.newInstance();
private Logger _logger = Logger.getAnonymousLogger(
"com.sun.logging.enterprise.system.container.ejb.LogMessages");
private static final String VIRTUAL_SERVER = "virtual-server"; // should not skip
private static final String NETWORK_LISTENERS = "network-listeners";
private static final String IIOP_LISTENER = "iiop-listener";
private static final String PROTOCOLS = "protocols";
private static final String APPLICATIONS = "applications";
private static final String APPLICATION_REF = "application-ref";
private static final String CLUSTERS = "clusters";
private static final String JMS_HOST = "jms-host";
private static final String JMX_CONNECTOR = "jmx-connector";
private static final String LAZY_INIT_ATTR = "lazy-init";
private static final String ADMIN_SERVICE = "admin-service";
private static final String DAS_CONFIG = "das-config";
private static final String DYNAMIC_RELOAD_ENABLED = "dynamic-reload-enabled";
private static final String JAVA_CONFIG = "java-config";
private static final String JVM_OPTIONS = "jvm-options";
private static final String INITIALIZE_ON_DEMAND = "-Dorg.glassfish.jms.InitializeOnDemand=true";
private static final String ENABLED = "enabled";
private static final String FALSE = "false";
private static final String TRUE = "true";
private static final Set SKIP_ELEMENTS = new HashSet(Arrays.asList(APPLICATION_REF));
private static final Set EMPTY_ELEMENTS = new HashSet(Arrays.asList(NETWORK_LISTENERS, PROTOCOLS, APPLICATIONS, CLUSTERS));
private static final Set EMPTY_ELEMENTS_KEEP_PORTS = new HashSet(Arrays.asList(APPLICATIONS, CLUSTERS));
private static final Set SKIP_SETTINGS_ELEMENTS = new HashSet(Arrays.asList(IIOP_LISTENER));
private static final Set DISABLE_ELEMENTS = new HashSet(Arrays.asList(JMX_CONNECTOR));
private static final Set DISABLE_SUB_ELEMENTS = new HashSet(Arrays.asList(LAZY_INIT_ATTR));
private static final StringManager localStrings =
StringManager.getManager(DomainXmlTransformer.class);
public DomainXmlTransformer(File domainXml) {
in = domainXml;
}
public DomainXmlTransformer(File domainXml, Logger logger) {
in = domainXml;
_logger = logger;
}
public File transform(boolean keepPorts) {
FileInputStream fis = null;
FileOutputStream fos = null;
XMLEventReader parser = null;
XMLEventWriter writer = null;
XMLInputFactory xif =XMLInputFactory.newInstance();
Set empty_elements = (keepPorts)? EMPTY_ELEMENTS_KEEP_PORTS : EMPTY_ELEMENTS;
try {
fis = new FileInputStream(in);
out = File.createTempFile("domain", "xml");
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("[DomainXmlTransformer] Creating temp domain file: " + out);
}
if (System.getProperty(EJBContainerProviderImpl.KEEP_TEMPORARY_FILES) == null) {
FileUtils.deleteOnExit(out);
}
fos = new FileOutputStream(out);
parser = xif.createXMLEventReader(fis);
writer = xof.createXMLEventWriter(fos);
boolean fixedDasConfig = false;
while (parser.hasNext()) {
XMLEvent event = parser.nextEvent();
if (event.isStartElement()) {
String name = event.asStartElement().getName().getLocalPart();
if (SKIP_ELEMENTS.contains(name)) {
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("[DomainXmlTransformer] Skipping all of: " + name);
}
getEndEventFor(parser, name);
continue;
}
boolean skip_to_end = false;
if (empty_elements.contains(name)) {
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("[DomainXmlTransformer] Skipping details of: " + name);
}
skip_to_end = true;
} else if (SKIP_SETTINGS_ELEMENTS.contains(name)) {
// Make sure lazy init is not enabled by creating a new start element
// based on the original but that never includes the lazy init attribute
event = getSkippedElementStartEvent(event);
skip_to_end = true;
} else if (DISABLE_ELEMENTS.contains(name)) {
// Disable this element
event = getReplaceAttributeInStartEvent(event, ENABLED, FALSE);
skip_to_end = true;
} else if (JMS_HOST.equals(name)) {
// Set lazy-init to false
event = getReplaceAttributeInStartEvent(event, LAZY_INIT_ATTR, FALSE);
skip_to_end = true;
} else if (DAS_CONFIG.equals(name)) {
// Set dynamic-reload-enabled to false
event = getReplaceAttributeInStartEvent(event, DYNAMIC_RELOAD_ENABLED, FALSE);
fixedDasConfig = true;
skip_to_end = true;
} else if (JAVA_CONFIG.equals(name)) {
// Add jvm-options
writer.add(event);
event = getAddedEvent(event, writer, JVM_OPTIONS, INITIALIZE_ON_DEMAND);
}
if (skip_to_end) {
writer.add(event);
event = getEndEventFor(parser, name);
}
} else if (event.isEndElement()) {
String name = event.asEndElement().getName().getLocalPart();
if (ADMIN_SERVICE.equals(name)) {
if (!fixedDasConfig) {
writer.add(getAddedEventBeforeEndElement(event, writer, DAS_CONFIG, DYNAMIC_RELOAD_ENABLED, FALSE));
}
fixedDasConfig = false; // for the next config
}
}
if (_logger.isLoggable(Level.FINEST)) {
_logger.finest("[DomainXmlTransformer] Processing: " + event);
}
writer.add(event);
}
writer.flush();
writer.close();
} catch (Exception e) {
_logger.log(Level.SEVERE, "ejb.embedded.tmp_file_create_error", e.getMessage());
_logger.log(Level.FINE, e.getMessage(), e);
return null;
} finally {
try {
if (parser != null) {
parser.close();
}
} catch (Exception e) {}
try {
if (fis != null) {
fis.close();
}
} catch (Exception e) {}
try {
if (writer != null) {
writer.close();
}
} catch (Exception e) {}
try {
if (fos != null) {
fos.close();
}
} catch (Exception e) {}
}
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("[DomainXmlTransformer] Created temp domain file: " + out);
}
return out;
}
private XMLEvent getEndEventFor(XMLEventReader parser, String name)
throws XMLStreamException, EOFException {
while (parser.hasNext()) {
XMLEvent event = parser.nextEvent();
if (event.isEndElement()
&& event.asEndElement().getName().getLocalPart().equals(name)) {
if (_logger.isLoggable(Level.FINEST)) {
_logger.finest("[DomainXmlTransformer] END: " + name);
}
return event;
}
}
throw new EOFException(localStrings.getString(
"ejb.embedded.no_matching_end_element", name));
}
/** Create a new start element based on the original but that does not include
* the specified attribute.
*/
private StartElement getSkippedElementStartEvent(XMLEvent event) {
Set attributes = new HashSet();
for(java.util.Iterator i = event.asStartElement().getAttributes(); i.hasNext();) {
Attribute a = (Attribute) i.next();
if( !DISABLE_SUB_ELEMENTS.contains(a.getName().getLocalPart())) {
attributes.add(a);
}
}
StartElement oldStartEvent = event.asStartElement();
return xmlEventFactory.createStartElement(oldStartEvent.getName(),
attributes.iterator(), oldStartEvent.getNamespaces());
}
/** Write a new element with the specified name and text
* @return the end element
*/
private XMLEvent getAddedEvent(XMLEvent event, XMLEventWriter writer, String elementName,
String text) throws XMLStreamException {
StartElement oldStartEvent = event.asStartElement();
StartElement newStartEvent = xmlEventFactory.createStartElement(new QName(elementName),
null, oldStartEvent.getNamespaces());
writer.add(newStartEvent);
writer.add(xmlEventFactory.createCharacters(text));
return xmlEventFactory.createEndElement(newStartEvent.getName(), newStartEvent.getNamespaces());
}
/** Write a new element with the specified name and attribute before the end element is written out
* @return the end element
*/
private XMLEvent getAddedEventBeforeEndElement(XMLEvent event, XMLEventWriter writer, String elementName,
String attributeName, String attributeValue) throws XMLStreamException {
Attribute newAttribute = xmlEventFactory.createAttribute(attributeName, attributeValue);
Set attributes = new HashSet();
attributes.add(newAttribute);
EndElement oldEvent = event.asEndElement();
StartElement newStartEvent = xmlEventFactory.createStartElement(new QName(elementName),
attributes.iterator(), oldEvent.getNamespaces());
writer.add(newStartEvent);
return xmlEventFactory.createEndElement(newStartEvent.getName(), newStartEvent.getNamespaces());
}
/** Create a new start element based on the original but that replaces attribute value
*/
private StartElement getReplaceAttributeInStartEvent(XMLEvent event, String attr_name, String attr_value) {
Set attributes = new HashSet();
for(java.util.Iterator i = event.asStartElement().getAttributes(); i.hasNext();) {
Attribute a = (Attribute) i.next();
if( !a.getName().getLocalPart().equals(attr_name) ) {
attributes.add(a);
}
}
Attribute newAttribute = xmlEventFactory.createAttribute(attr_name, attr_value);
attributes.add(newAttribute);
StartElement oldStartEvent = event.asStartElement();
return xmlEventFactory.createStartElement(oldStartEvent.getName(),
attributes.iterator(), oldStartEvent.getNamespaces());
}
}
