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/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, 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.adapters.jdbc.xa;
import org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnectionFactory;
import org.jboss.jca.adapters.jdbc.classloading.TCClassLoaderPlugin;
import org.jboss.jca.adapters.jdbc.spi.URLXASelectorStrategy;
import org.jboss.jca.adapters.jdbc.spi.XAData;
import org.jboss.jca.adapters.jdbc.util.Injection;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.StringTokenizer;
import javax.resource.ResourceException;
import javax.resource.spi.ConnectionRequestInfo;
import javax.resource.spi.ManagedConnection;
import javax.security.auth.Subject;
import javax.sql.XAConnection;
import javax.sql.XADataSource;
/**
* XAManagedConnectionFactory
*
* @author David Jencks
* @author Adrian Brock
* @author Jesper Pedersen
*/
public class XAManagedConnectionFactory extends BaseWrapperManagedConnectionFactory
{
private static final long serialVersionUID = 1647927657609573729L;
private String xaDataSourceClass;
private String xaDataSourceProperties;
/** THe XA properties */
protected final Map xaProps = Collections.synchronizedMap(new HashMap());
private Boolean isSameRMOverrideValue;
private XADataSource xads;
private String urlProperty;
private URLXASelectorStrategy xadsSelector;
/**
* Constructor
*/
public XAManagedConnectionFactory()
{
}
/**
* Get the URL property
* @return The value
*/
public String getURLProperty()
{
return urlProperty;
}
/**
* Set the URL property
* @param urlProperty The value
*/
public void setURLProperty(String urlProperty)
{
this.urlProperty = urlProperty;
}
/**
* Get the XaDataSourceClass value.
* @return the XaDataSourceClass value.
*/
public String getXADataSourceClass()
{
return xaDataSourceClass;
}
/**
* Set the XaDataSourceClass value.
* @param xaDataSourceClass The new XaDataSourceClass value.
*/
public void setXADataSourceClass(String xaDataSourceClass)
{
this.xaDataSourceClass = xaDataSourceClass;
}
/**
* Get the XADataSourceProperties value.
* @return the XADataSourceProperties value.
*/
public String getXADataSourceProperties()
{
return xaDataSourceProperties;
}
/**
* Set the XADataSourceProperties value.
* @param xaDataSourceProperties The new XADataSourceProperties value.
* @exception ResourceException Thrown in case of an error
*/
public void setXADataSourceProperties(String xaDataSourceProperties) throws ResourceException
{
this.xaDataSourceProperties = xaDataSourceProperties;
xaProps.clear();
if (xaDataSourceProperties != null)
{
// Map any \ to \\
xaDataSourceProperties = xaDataSourceProperties.replaceAll("\\\\", "\\\\\\\\");
InputStream is = new ByteArrayInputStream(xaDataSourceProperties.getBytes());
try
{
Properties p = new Properties();
p.load(is);
for (Map.Entry entry : p.entrySet())
{
xaProps.put((String)entry.getKey(), (String)entry.getValue());
}
}
catch (IOException ioe)
{
throw new ResourceException("Could not load connection properties", ioe);
}
}
initSelector();
}
/**
* Get the IsSameRMOverrideValue value.
* @return the IsSameRMOverrideValue value.
*/
public Boolean getIsSameRMOverrideValue()
{
return isSameRMOverrideValue;
}
/**
* Set the IsSameRMOverrideValue value.
* @param isSameRMOverrideValue The new IsSameRMOverrideValue value.
*/
public void setIsSameRMOverrideValue(Boolean isSameRMOverrideValue)
{
this.isSameRMOverrideValue = isSameRMOverrideValue;
}
@SuppressWarnings("unchecked")
private void initSelector() throws ResourceException
{
boolean trace = log.isTraceEnabled();
if (urlProperty != null && !urlProperty.trim().equals(""))
{
String urlsStr = xaProps.get(urlProperty);
if (urlsStr != null && urlsStr.trim().length() > 0 &&
urlDelimiter != null && urlDelimiter.trim().length() > 0)
{
List xaDataList = new ArrayList(2);
Properties xaPropsCopy = new Properties();
for (Map.Entry entry : xaProps.entrySet())
{
xaPropsCopy.put(entry.getKey(), entry.getValue());
}
StringTokenizer st = new StringTokenizer(urlsStr, urlDelimiter);
while (st.hasMoreTokens())
{
String url = st.nextToken();
xaPropsCopy.setProperty(urlProperty, url);
XADataSource xads = createXaDataSource(xaPropsCopy);
xaDataList.add(new XAData(xads, url));
if (trace)
log.trace("added XA HA connection url: " + url);
}
if (getUrlSelectorStrategyClassName() == null)
{
xadsSelector = new URLXASelector();
xadsSelector.init(xaDataList);
log.debug("Default URLXASelectorStrategy is being used : " + xadsSelector);
}
else
{
xadsSelector = initUrlSelectorClass(getUrlSelectorStrategyClassName(), xaDataList);
log.debug("Customized URLXASelectorStrategy is being used : " + xadsSelector);
}
}
}
}
/**
* Init the URLXASelectStrategy
* @param className The class name
* @param urls The list with urls
* @return The URL selector strategy
*/
private URLXASelectorStrategy initUrlSelectorClass(String className, List xaDatas)
{
URLXASelectorStrategy result = null;
if (className == null || className.trim().equals(""))
{
log.error("Unable to load undefined URLXASelectStrategy");
return null;
}
Class clz = null;
try
{
clz = Class.forName(className, true, getClassLoaderPlugin().getClassLoader());
}
catch (ClassNotFoundException cnfe)
{
// Not found
}
if (clz == null)
{
try
{
clz = Class.forName(className, true, new TCClassLoaderPlugin().getClassLoader());
}
catch (ClassNotFoundException cnfe)
{
// Not found
}
}
if (clz == null)
{
try
{
clz = Class.forName(className, true, XAManagedConnectionFactory.class.getClassLoader());
}
catch (ClassNotFoundException cnfe)
{
log.error("Unable to load: " + className);
}
}
if (clz == null)
{
log.error("Unable to load defined URLXASelectStrategy: " + className);
return null;
}
try
{
result = (URLXASelectorStrategy)clz.newInstance();
Method init = clz.getMethod("init", new Class[] {List.class});
init.invoke(result, new Object[] {xaDatas});
}
catch (Throwable t)
{
log.error("URLXASelectStrategy:" + t.getMessage(), t);
}
return result;
}
@SuppressWarnings("unchecked")
private XADataSource createXaDataSource(Properties p) throws ResourceException
{
if (getXADataSourceClass() == null)
{
throw new ResourceException("No XADataSourceClass supplied!");
}
XADataSource xads = null;
Class clazz = null;
try
{
clazz = Class.forName(getXADataSourceClass(), true, getClassLoaderPlugin().getClassLoader());
}
catch (ClassNotFoundException cnfe)
{
// Ignore
}
if (clazz == null)
{
try
{
clazz = Class.forName(getXADataSourceClass(), true, new TCClassLoaderPlugin().getClassLoader());
}
catch (ClassNotFoundException cnfe)
{
// Ignore
}
}
if (clazz == null)
{
try
{
clazz = Class.forName(getXADataSourceClass(), true, XAManagedConnectionFactory.class.getClassLoader());
}
catch (ClassNotFoundException cnfe)
{
throw new ResourceException("Class not found for XADataSource " + getXADataSourceClass(), cnfe);
}
}
try
{
Injection injector = new Injection();
xads = (XADataSource)clazz.newInstance();
final Class[] noClasses = new Class[]{};
for (Map.Entry entry : p.entrySet())
{
String name = (String)entry.getKey();
String value = (String)entry.getValue();
injector.inject(xads, name, value);
}
}
catch (InstantiationException ie)
{
throw new ResourceException("Could not create an XADataSource: ", ie);
}
catch (IllegalAccessException iae)
{
throw new ResourceException("Could not set a property: ", iae);
}
catch (IllegalArgumentException iae)
{
throw new ResourceException("Could not set a property: ", iae);
}
catch (InvocationTargetException ite)
{
throw new ResourceException("Could not invoke setter on XADataSource: ", ite);
}
catch (NoSuchMethodException nsme)
{
throw new ResourceException("Could not find accessor on XADataSource: ", nsme);
}
return xads;
}
/**
* {@inheritDoc}
*/
public synchronized ManagedConnection createManagedConnection(Subject subject, ConnectionRequestInfo cri)
throws javax.resource.ResourceException
{
if (urlProperty != null && !urlProperty.trim().equals("") && xadsSelector == null)
initSelector();
if (xadsSelector == null)
{
return getXAManagedConnection(subject, cri);
}
while (xadsSelector.hasMore())
{
XAData xaData = xadsSelector.active();
if (log.isTraceEnabled())
log.trace("Trying to create an XA connection to " + xaData.getUrl());
try
{
return getXAManagedConnection(subject, cri);
}
catch (ResourceException e)
{
log.warn("Failed to create an XA connection to " + xaData.getUrl() + ": " + e.getMessage());
xadsSelector.fail(xaData);
}
}
xadsSelector.reset();
// we have supposedly tried all the urls
throw new ResourceException("Could not create connection using any of the URLs: " +
xadsSelector.getData());
}
/**
* Get the managed connection
* @param subject The subject
* @param cri The connection request info
* @return The connection
* @exception ResourceException Thrown if an error occurs
*/
public ManagedConnection getXAManagedConnection(Subject subject, ConnectionRequestInfo cri)
throws ResourceException
{
XAConnection xaConnection = null;
Properties props = getConnectionProperties(subject, cri);
try
{
final String user = props.getProperty("user");
final String password = props.getProperty("password");
xaConnection = (user != null)
? getXADataSource().getXAConnection(user, password)
: getXADataSource().getXAConnection();
return newXAManagedConnection(props, xaConnection);
}
catch (Throwable e)
{
try
{
if (xaConnection != null)
xaConnection.close();
}
catch (Throwable ignored)
{
// Ignore
}
throw new ResourceException("Could not create connection", e);
}
}
/**
* This method can be overwritten by sublcasses to provide rm specific
* implementation of XAManagedConnection
* @param props The properties
* @param xaConnection The XA connection
* @return The managed connection
* @exception SQLException Thrown if an error occurs
*/
protected ManagedConnection newXAManagedConnection(Properties props, XAConnection xaConnection) throws SQLException
{
return new XAManagedConnection(this, xaConnection, props, transactionIsolation, preparedStatementCacheSize);
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("rawtypes")
public ManagedConnection matchManagedConnections(Set mcs, Subject subject, ConnectionRequestInfo cri)
throws ResourceException
{
Properties newProps = getConnectionProperties(subject, cri);
for (Iterator i = mcs.iterator(); i.hasNext();)
{
Object o = i.next();
if (o instanceof XAManagedConnection)
{
XAManagedConnection mc = (XAManagedConnection) o;
if (Boolean.TRUE.equals(getReauthEnabled()))
{
return mc;
}
else if (mc.getProperties().equals(newProps))
{
//Next check to see if we are validating on matchManagedConnections
if ((getValidateOnMatch() && mc.checkValid()) || !getValidateOnMatch())
{
return mc;
}
}
}
}
return null;
}
/**
* {@inheritDoc}
*/
@Override
public int hashCode()
{
int result = 17;
result = result * 37 + ((xaDataSourceClass == null) ? 0 : xaDataSourceClass.hashCode());
result = result * 37 + xaProps.hashCode();
result = result * 37 + ((userName == null) ? 0 : userName.hashCode());
result = result * 37 + ((password == null) ? 0 : password.hashCode());
result = result * 37 + transactionIsolation;
return result;
}
/**
* {@inheritDoc}
*/
@Override
public boolean equals(Object other)
{
if (this == other)
return true;
if (getClass() != other.getClass())
return false;
XAManagedConnectionFactory otherMcf = (XAManagedConnectionFactory) other;
return this.xaDataSourceClass.equals(otherMcf.xaDataSourceClass) && this.xaProps.equals(otherMcf.xaProps)
&& ((this.userName == null) ? otherMcf.userName == null : this.userName.equals(otherMcf.userName))
&& ((this.password == null) ? otherMcf.password == null : this.password.equals(otherMcf.password))
&& this.transactionIsolation == otherMcf.transactionIsolation;
}
/**
* Get the XA datasource
* @return The value
* @exception ResourceException Thrown if an error occurs
*/
@SuppressWarnings("unchecked")
protected synchronized XADataSource getXADataSource() throws ResourceException
{
if (xadsSelector != null)
{
XAData xada = xadsSelector.active();
return xada.getXADataSource();
}
if (xads == null)
{
if (xaDataSourceClass == null)
throw new ResourceException("No XADataSourceClass supplied!");
try
{
Class clazz = Class.forName(xaDataSourceClass, true, getClassLoaderPlugin().getClassLoader());
xads = (XADataSource) clazz.newInstance();
final Class[] noClasses = new Class[] {};
Injection injector = new Injection();
for (Map.Entry entry : xaProps.entrySet())
{
String name = entry.getKey();
String value = entry.getValue();
injector.inject(xads, name, value);
}
}
catch (ClassNotFoundException cnfe)
{
throw new ResourceException("Class not found for XADataSource " + xaDataSourceClass, cnfe);
}
catch (InstantiationException ie)
{
throw new ResourceException("Could not create an XADataSource: ", ie);
}
catch (IllegalAccessException iae)
{
throw new ResourceException("Could not set a property: ", iae);
}
catch (IllegalArgumentException iae)
{
throw new ResourceException("Could not set a property: ", iae);
}
catch (InvocationTargetException ite)
{
throw new ResourceException("Could not invoke setter on XADataSource: ", ite);
}
catch (NoSuchMethodException nsme)
{
throw new ResourceException("Could not find accessor on XADataSource: ", nsme);
}
}
return xads;
}
/**
* {@inheritDoc}
*/
public String toString()
{
StringBuilder sb = new StringBuilder();
sb.append("XAManagedConnectionFactory@").append(Integer.toHexString(System.identityHashCode(this)));
sb.append("[xaDataSourceClass=").append(xaDataSourceClass);
sb.append(" xaProps=").append(Integer.toHexString(System.identityHashCode(xaProps)));
sb.append(" userName=").append(userName);
sb.append(" password=****");
sb.append(" transactionIsolation=").append(transactionIsolation);
sb.append("]");
return sb.toString();
}
}
