/*
* 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.ds;
import org.jboss.jca.common.api.metadata.common.CommonPool;
import org.jboss.jca.common.api.metadata.common.CommonSecurity;
import org.jboss.jca.common.api.metadata.common.CommonXaPool;
import org.jboss.jca.common.api.metadata.ds.DataSource;
import org.jboss.jca.common.api.metadata.ds.DataSources;
import org.jboss.jca.common.api.metadata.ds.Statement;
import org.jboss.jca.common.api.metadata.ds.Statement.TrackStatementsEnum;
import org.jboss.jca.common.api.metadata.ds.TimeOut;
import org.jboss.jca.common.api.metadata.ds.TransactionIsolation;
import org.jboss.jca.common.api.metadata.ds.Validation;
import org.jboss.jca.common.api.metadata.ds.XaDataSource;
import org.jboss.jca.common.api.metadata.ds.XaDataSource.Attribute;
import org.jboss.jca.common.metadata.AbstractParser;
import org.jboss.jca.common.metadata.MetadataParser;
import org.jboss.jca.common.metadata.ParserException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
/**
*
* A DsParser.
*
* @author <a href="stefano.maestri@jboss.com">Stefano Maestri</a>
*
*/
public class DsParser extends AbstractParser implements MetadataParser<DataSources>
{
@Override
public DataSources parse(InputStream xmlInputStream) throws Exception
{
XMLStreamReader reader = null;
XMLInputFactory inputFactory = XMLInputFactory.newInstance();
reader = inputFactory.createXMLStreamReader(xmlInputStream);
return parse(reader);
}
@Override
public DataSources parse(XMLStreamReader reader) throws Exception
{
DataSources dataSources = null;
try
{
//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 DATASOURCES : {
dataSources = parseDataSources(reader);
break;
}
default :
throw new ParserException("Unexpected element:" + reader.getLocalName());
}
break;
}
default :
throw new IllegalStateException();
}
}
finally
{
if (reader != null)
reader.close();
}
return dataSources;
}
private DataSources parseDataSources(XMLStreamReader reader) throws XMLStreamException, ParserException
{
ArrayList<XaDataSource> xaDataSource = new ArrayList<XaDataSource>();
ArrayList<DataSource> datasource = new ArrayList<DataSource>();
while (reader.hasNext())
{
switch (reader.nextTag())
{
case END_ELEMENT : {
if (Tag.forName(reader.getLocalName()) == Tag.DATASOURCES)
{
return new DatasourcesImpl(datasource, xaDataSource);
}
else
{
if (DataSources.Tag.forName(reader.getLocalName()) == DataSources.Tag.UNKNOWN)
{
throw new ParserException("unexpected end tag" + reader.getLocalName());
}
}
break;
}
case START_ELEMENT : {
switch (DataSources.Tag.forName(reader.getLocalName()))
{
case DATASOURCE : {
datasource.add(parseDataSource(reader));
break;
}
case XA_DATASOURCE : {
xaDataSource.add(parseXADataSource(reader));
break;
}
default :
throw new ParserException("Unexpected element:" + reader.getLocalName());
}
break;
}
}
}
throw new ParserException("Reached end of xml document unexpectedly");
}
private XaDataSource parseXADataSource(XMLStreamReader reader) throws XMLStreamException, ParserException
{
TransactionIsolation transactionIsolation = null;
Map<String, String> xaDataSourceProperty = new HashMap<String, String>();
TimeOut timeOutSettings = null;
CommonSecurity securitySettings = null;
Statement statementSettings = null;
Validation validationSettings = null;
String urlDelimiter = null;
String urlSelectorStrategyClassName = null;
String newConnectionSql = null;
CommonXaPool xaPool = null;
String xaDataSourceClass = null;
//attributes reading
boolean useJavaContext = false;
String poolName = null;
boolean enabled = true;
String jndiName = null;
for (Attribute attribute : XaDataSource.Attribute.values())
{
switch (attribute)
{
case ENABLED : {
enabled = attributeAsBoolean(reader, attribute.getLocalName(), true);
break;
}
case JNDINAME : {
jndiName = attributeAsString(reader, attribute.getLocalName());
break;
}
case POOL_NAME : {
poolName = attributeAsString(reader, attribute.getLocalName());
break;
}
case USEJAVACONTEXT : {
useJavaContext = attributeAsBoolean(reader, attribute.getLocalName(), true);
break;
}
default :
break;
}
}
//elements reading
while (reader.hasNext())
{
switch (reader.nextTag())
{
case END_ELEMENT : {
if (DataSources.Tag.forName(reader.getLocalName()) == DataSources.Tag.XA_DATASOURCE)
{
return new XADataSourceImpl(transactionIsolation, timeOutSettings, securitySettings,
statementSettings, validationSettings, urlDelimiter,
urlSelectorStrategyClassName, useJavaContext, poolName, enabled,
jndiName, xaDataSourceProperty, xaDataSourceClass, newConnectionSql,
xaPool);
}
else
{
if (XaDataSource.Tag.forName(reader.getLocalName()) == XaDataSource.Tag.UNKNOWN)
{
throw new ParserException("unexpected end tag" + reader.getLocalName());
}
}
break;
}
case START_ELEMENT : {
switch (XaDataSource.Tag.forName(reader.getLocalName()))
{
case XADATASOURCEPROPERTY : {
xaDataSourceProperty.put(attributeAsString(reader, "name"), elementAsString(reader));
break;
}
case XADATASOURCECLASS : {
xaDataSourceClass = elementAsString(reader);
break;
}
case XA_POOL : {
xaPool = parseXaPool(reader);
break;
}
case NEWCONNECTIONSQL : {
newConnectionSql = elementAsString(reader);
break;
}
case URLDELIMITER : {
urlDelimiter = elementAsString(reader);
break;
}
case URLSELECTORSTRATEGYCLASSNAME : {
urlSelectorStrategyClassName = elementAsString(reader);
break;
}
case TRANSACTIONISOLATION : {
transactionIsolation = TransactionIsolation.valueOf(elementAsString(reader));
break;
}
case SECURITY : {
securitySettings = parseSecuritySettings(reader);
break;
}
case STATEMENT : {
statementSettings = parseStatementSettings(reader);
break;
}
case TIMEOUT : {
timeOutSettings = parseTimeOutSettings(reader);
break;
}
case VALIDATION : {
validationSettings = parseValidationSetting(reader);
break;
}
default :
throw new ParserException("Unexpected element:" + reader.getLocalName());
}
break;
}
}
}
throw new ParserException("Reached end of xml document unexpectedly");
}
private DataSource parseDataSource(XMLStreamReader reader) throws XMLStreamException, ParserException
{
Integer minPoolSize = null;
Integer maxPoolSize = null;
boolean prefill = false;
String connectionUrl = null;
String driverClass = null;
TransactionIsolation transactionIsolation = null;
Map<String, String> connectionProperties = new HashMap<String, String>();
TimeOut timeOutSettings = null;
CommonSecurity securitySettings = null;
Statement statementSettings = null;
Validation validationSettings = null;
String urlDelimiter = null;
String urlSelectorStrategyClassName = null;
String newConnectionSql = null;
CommonPool pool = null;
//attributes reading
boolean useJavaContext = false;
String poolName = null;
boolean enabled = true;
String jndiName = null;
for (Attribute attribute : XaDataSource.Attribute.values())
{
switch (attribute)
{
case ENABLED : {
enabled = attributeAsBoolean(reader, attribute.getLocalName(), true);
break;
}
case JNDINAME : {
jndiName = attributeAsString(reader, attribute.getLocalName());
break;
}
case POOL_NAME : {
poolName = attributeAsString(reader, attribute.getLocalName());
break;
}
case USEJAVACONTEXT : {
useJavaContext = attributeAsBoolean(reader, attribute.getLocalName(), true);
break;
}
default :
break;
}
}
//elements reading
while (reader.hasNext())
{
switch (reader.nextTag())
{
case END_ELEMENT : {
if (DataSources.Tag.forName(reader.getLocalName()) == DataSources.Tag.DATASOURCE)
{
return new DataSourceImpl(connectionUrl, driverClass, transactionIsolation, connectionProperties,
timeOutSettings, securitySettings, statementSettings, validationSettings,
urlDelimiter, urlSelectorStrategyClassName, newConnectionSql,
useJavaContext, poolName, enabled, jndiName, pool);
}
else
{
if (DataSource.Tag.forName(reader.getLocalName()) == DataSource.Tag.UNKNOWN)
{
throw new ParserException("unexpected end tag" + reader.getLocalName());
}
}
break;
}
case START_ELEMENT : {
switch (DataSource.Tag.forName(reader.getLocalName()))
{
case CONNECTIONPROPERTY : {
connectionProperties.put(attributeAsString(reader, "name"), elementAsString(reader));
break;
}
case CONNECTIONURL : {
connectionUrl = elementAsString(reader);
break;
}
case DRIVERCLASS : {
driverClass = elementAsString(reader);
break;
}
case POOL : {
pool = parsePool(reader);
break;
}
case NEWCONNECTIONSQL : {
newConnectionSql = elementAsString(reader);
break;
}
case URLDELIMITER : {
urlDelimiter = elementAsString(reader);
break;
}
case URLSELECTORSTRATEGYCLASSNAME : {
urlSelectorStrategyClassName = elementAsString(reader);
break;
}
case TRANSACTIONISOLATION : {
transactionIsolation = TransactionIsolation.valueOf(elementAsString(reader));
break;
}
case SECURITY : {
securitySettings = parseSecuritySettings(reader);
break;
}
case STATEMENT : {
statementSettings = parseStatementSettings(reader);
break;
}
case TIMEOUT : {
timeOutSettings = parseTimeOutSettings(reader);
break;
}
case VALIDATION : {
validationSettings = parseValidationSetting(reader);
break;
}
default :
throw new ParserException("Unexpected element:" + reader.getLocalName());
}
break;
}
}
}
throw new ParserException("Reached end of xml document unexpectedly");
}
private Validation parseValidationSetting(XMLStreamReader reader) throws XMLStreamException, ParserException
{
boolean validateOnMatch = false;
boolean useFastFail = false;
Long backgroundValidationMinutes = null;
String staleConnectionCheckerClassName = null;
boolean backgroundValidation = false;
String checkValidConnectionSql = null;
String validConnectionCheckerClassName = null;
String exceptionSorterClassName = null;
while (reader.hasNext())
{
switch (reader.nextTag())
{
case END_ELEMENT : {
if (DataSource.Tag.forName(reader.getLocalName()) == DataSource.Tag.VALIDATION)
{
return new ValidationImpl(backgroundValidation, backgroundValidationMinutes, useFastFail,
validConnectionCheckerClassName, checkValidConnectionSql,
validateOnMatch, staleConnectionCheckerClassName,
exceptionSorterClassName);
}
else
{
if (Validation.Tag.forName(reader.getLocalName()) == Validation.Tag.UNKNOWN)
{
throw new ParserException("unexpected end tag" + reader.getLocalName());
}
}
break;
}
case START_ELEMENT : {
switch (Validation.Tag.forName(reader.getLocalName()))
{
case BACKGROUNDVALIDATION : {
backgroundValidation = elementAsBoolean(reader);
break;
}
case BACKGROUNDVALIDATIONMINUTES : {
backgroundValidationMinutes = elementAsLong(reader);
break;
}
case CHECKVALIDCONNECTIONSQL : {
checkValidConnectionSql = elementAsString(reader);
break;
}
case EXCEPTIONSORTERCLASSNAME : {
exceptionSorterClassName = elementAsString(reader);
break;
}
case STALECONNECTIONCHECKERCLASSNAME : {
staleConnectionCheckerClassName = elementAsString(reader);
break;
}
case USEFASTFAIL : {
useFastFail = elementAsBoolean(reader);
break;
}
case VALIDATEONMATCH : {
validateOnMatch = elementAsBoolean(reader);
break;
}
case VALIDCONNECTIONCHECKERCLASSNAME : {
validConnectionCheckerClassName = elementAsString(reader);
break;
}
default :
throw new ParserException("Unexpected element:" + reader.getLocalName());
}
break;
}
}
}
throw new ParserException("Reached end of xml document unexpectedly");
}
private TimeOut parseTimeOutSettings(XMLStreamReader reader) throws XMLStreamException, ParserException
{
Long blockingTimeoutMillis = null;
Long idleTimeoutMinutes = null;
boolean setTxQuertTimeout = false;
Long queryTimeout = null;
Integer allocationRetry = null;
Long allocationRetryWaitMillis = null;
Long useTryLock = null;
Integer xaResourceTimeout = null;
while (reader.hasNext())
{
switch (reader.nextTag())
{
case END_ELEMENT : {
if (DataSource.Tag.forName(reader.getLocalName()) == DataSource.Tag.TIMEOUT)
{
return new TimeOutImpl(blockingTimeoutMillis, idleTimeoutMinutes, allocationRetry,
allocationRetryWaitMillis, xaResourceTimeout, setTxQuertTimeout,
queryTimeout, useTryLock);
}
else
{
if (TimeOut.Tag.forName(reader.getLocalName()) == TimeOut.Tag.UNKNOWN)
{
throw new ParserException("unexpected end tag" + reader.getLocalName());
}
}
break;
}
case START_ELEMENT : {
switch (TimeOut.Tag.forName(reader.getLocalName()))
{
case ALLOCATIONRETRY : {
allocationRetry = elementAsInteger(reader);
break;
}
case ALLOCATIONRETRYWAITMILLIS : {
allocationRetryWaitMillis = elementAsLong(reader);
break;
}
case BLOCKINGTIMEOUTMILLIS : {
blockingTimeoutMillis = elementAsLong(reader);
break;
}
case IDLETIMEOUTMINUTES : {
idleTimeoutMinutes = elementAsLong(reader);
break;
}
case QUERYTIMEOUT : {
queryTimeout = elementAsLong(reader);
break;
}
case SETTXQUERYTIMEOUT : {
setTxQuertTimeout = elementAsBoolean(reader);
break;
}
case USETRYLOCK : {
useTryLock = elementAsLong(reader);
break;
}
case XARESOURCETIMEOUT : {
xaResourceTimeout = elementAsInteger(reader);
break;
}
default :
throw new ParserException("Unexpected element:" + reader.getLocalName());
}
break;
}
}
}
throw new ParserException("Reached end of xml document unexpectedly");
}
private Statement parseStatementSettings(XMLStreamReader reader) throws XMLStreamException, ParserException
{
Long preparedStatementsCacheSize = null;
boolean sharePreparedStatements = false;
TrackStatementsEnum trackStatements = null;
while (reader.hasNext())
{
switch (reader.nextTag())
{
case END_ELEMENT : {
if (DataSource.Tag.forName(reader.getLocalName()) == DataSource.Tag.STATEMENT)
{
return new StatementImpl(sharePreparedStatements, preparedStatementsCacheSize, trackStatements);
}
else
{
if (Statement.Tag.forName(reader.getLocalName()) == Statement.Tag.UNKNOWN)
{
throw new ParserException("unexpected end tag" + reader.getLocalName());
}
}
break;
}
case START_ELEMENT : {
switch (Statement.Tag.forName(reader.getLocalName()))
{
case PREPAREDSTATEMENTCACHESIZE : {
preparedStatementsCacheSize = elementAsLong(reader);
break;
}
case TRACKSTATEMENTS : {
String elementString = elementAsString(reader);
trackStatements = TrackStatementsEnum.valueOf(elementString == null ? "FALSE" : elementString
.toUpperCase(Locale.US));
break;
}
case SHAREPREPAREDSTATEMENTS : {
sharePreparedStatements = elementAsBoolean(reader);
break;
}
default :
throw new ParserException("Unexpected element:" + reader.getLocalName());
}
break;
}
}
}
throw new ParserException("Reached end of xml document unexpectedly");
}
/**
*
* A Tag.
*
* @author <a href="stefano.maestri@jboss.com">Stefano Maestri</a>
*
*/
public enum Tag
{
/** always first
*
*/
UNKNOWN(null),
/** jboss-ra tag name
*
*/
DATASOURCES("datasources");
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<String, Tag> MAP;
static
{
final Map<String, Tag> map = new HashMap<String, Tag>();
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;
}
}
}