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IronJacamar is an implementation of the Java EE Connector Architecture 1.6 specification
/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.jca.common.metadata.resourceadapter;
import org.jboss.jca.common.CommonBundle;
import org.jboss.jca.common.api.metadata.common.CommonAdminObject;
import org.jboss.jca.common.api.metadata.common.CommonConnDef;
import org.jboss.jca.common.api.metadata.common.TransactionSupportEnum;
import org.jboss.jca.common.api.metadata.resourceadapter.ResourceAdapter;
import org.jboss.jca.common.api.metadata.resourceadapter.ResourceAdapters;
import org.jboss.jca.common.api.validator.ValidateException;
import org.jboss.jca.common.metadata.MetadataParser;
import org.jboss.jca.common.metadata.ParserException;
import org.jboss.jca.common.metadata.common.CommonIronJacamarParser;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import org.jboss.logging.Messages;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
/**
*
* A ResourceAdapterParserr.
*
* @author Stefano Maestri
*
*/
public class ResourceAdapterParser extends CommonIronJacamarParser implements MetadataParser
{
/** The bundle */
private static CommonBundle bundle = Messages.getBundle(CommonBundle.class);
@Override
public ResourceAdapters parse(InputStream xmlInputStream) throws Exception
{
XMLStreamReader reader = null;
ResourceAdapters adapters = null;
XMLInputFactory inputFactory = XMLInputFactory.newInstance();
reader = inputFactory.createXMLStreamReader(xmlInputStream);
try
{
return parse(reader);
}
finally
{
if (reader != null)
reader.close();
}
}
@Override
public ResourceAdapters parse(XMLStreamReader reader) throws Exception
{
ResourceAdapters adapters = null;
//iterate over tags
int iterate;
try
{
iterate = reader.nextTag();
}
catch (XMLStreamException e)
{
//founding a non tag..go on. Normally non-tag found at beginning are comments or DTD declaration
iterate = reader.nextTag();
}
switch (iterate)
{
case END_ELEMENT : {
// should mean we're done, so ignore it.
break;
}
case START_ELEMENT : {
switch (Tag.forName(reader.getLocalName()))
{
case RESOURCE_ADPTERS : {
adapters = parseResourceAdapters(reader);
break;
}
default :
throw new ParserException(bundle.unexpectedElement(reader.getLocalName()));
}
break;
}
default :
throw new IllegalStateException();
}
return adapters;
}
private ResourceAdapters parseResourceAdapters(XMLStreamReader reader) throws XMLStreamException, ParserException,
ValidateException
{
ArrayList resourceAdapters = new ArrayList();
while (reader.hasNext())
{
switch (reader.nextTag())
{
case END_ELEMENT : {
if (Tag.forName(reader.getLocalName()) == Tag.RESOURCE_ADPTERS)
{
resourceAdapters.trimToSize();
return new ResourceAdaptersImpl(resourceAdapters);
}
else
{
if (ResourceAdapters.Tag.forName(reader.getLocalName()) == ResourceAdapters.Tag.UNKNOWN)
{
throw new ParserException(bundle.unexpectedEndTag(reader.getLocalName()));
}
}
break;
}
case START_ELEMENT : {
switch (ResourceAdapters.Tag.forName(reader.getLocalName()))
{
case RESOURCE_ADPTER : {
resourceAdapters.add(parseResourceAdapter(reader));
break;
}
default :
throw new ParserException(bundle.unexpectedElement(reader.getLocalName()));
}
break;
}
}
}
throw new ParserException(bundle.unexpectedEndOfDocument());
}
private ResourceAdapter parseResourceAdapter(XMLStreamReader reader) throws XMLStreamException, ParserException,
ValidateException
{
ArrayList connectionDefinitions = null;
ArrayList adminObjects = null;
ArrayList beanValidationGroups = null;
String bootstrapContext = null;
String archive = null;
TransactionSupportEnum transactionSupport = null;
HashMap configProperties = null;
while (reader.hasNext())
{
switch (reader.nextTag())
{
case END_ELEMENT : {
if (ResourceAdapters.Tag.forName(reader.getLocalName()) == ResourceAdapters.Tag.RESOURCE_ADPTER)
{
return new ResourceAdapterImpl(archive, transactionSupport, connectionDefinitions, adminObjects,
configProperties, beanValidationGroups, bootstrapContext);
}
else
{
if (ResourceAdapter.Tag.forName(reader.getLocalName()) == ResourceAdapter.Tag.UNKNOWN)
{
throw new ParserException(bundle.unexpectedEndTag(reader.getLocalName()));
}
}
break;
}
case START_ELEMENT : {
switch (ResourceAdapter.Tag.forName(reader.getLocalName()))
{
case ADMIN_OBJECTS :
case CONNECTION_DEFINITIONS :
case BEAN_VALIDATION_GROUPS : {
//ignore it,we will parse bean-validation-group,admin_object and connection_definition directly
break;
}
case ADMIN_OBJECT : {
if (adminObjects == null)
adminObjects = new ArrayList();
adminObjects.add(parseAdminObjects(reader));
break;
}
case CONNECTION_DEFINITION : {
if (connectionDefinitions == null)
connectionDefinitions = new ArrayList();
connectionDefinitions.add(parseConnectionDefinitions(reader));
break;
}
case BEAN_VALIDATION_GROUP : {
if (beanValidationGroups == null)
beanValidationGroups = new ArrayList();
beanValidationGroups.add(elementAsString(reader));
break;
}
case BOOTSTRAP_CONTEXT : {
bootstrapContext = elementAsString(reader);
break;
}
case CONFIG_PROPERTY : {
if (configProperties == null)
configProperties = new HashMap();
configProperties.put(attributeAsString(reader, "name"), elementAsString(reader));
break;
}
case TRANSACTION_SUPPORT : {
transactionSupport = TransactionSupportEnum.valueOf(elementAsString(reader));
break;
}
case ARCHIVE : {
archive = elementAsString(reader);
break;
}
default :
throw new ParserException(bundle.unexpectedElement(reader.getLocalName()));
}
break;
}
}
}
throw new ParserException(bundle.unexpectedEndOfDocument());
}
/**
*
* A Tag.
*
* @author Stefano Maestri
*
*/
public enum Tag
{
/** always first
*
*/
UNKNOWN(null),
/** jboss-ra tag name
*
*/
RESOURCE_ADPTERS("resource-adapters");
private final String name;
/**
*
* Create a new Tag.
*
* @param name a name
*/
Tag(final String name)
{
this.name = name;
}
/**
* Get the local name of this element.
*
* @return the local name
*/
public String getLocalName()
{
return name;
}
private static final Map MAP;
static
{
final Map map = new HashMap();
for (Tag element : values())
{
final String name = element.getLocalName();
if (name != null)
map.put(name, element);
}
MAP = map;
}
/**
*
* Static method to get enum instance given localName string
*
* @param localName a string used as localname (typically tag name as defined in xsd)
* @return the enum instance
*/
public static Tag forName(String localName)
{
final Tag element = MAP.get(localName);
return element == null ? UNKNOWN : element;
}
}
}
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