BootstrapContextCoordinator.java
/*
* IronJacamar, a Java EE Connector Architecture implementation
* Copyright 2016, Red Hat Inc, 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 Eclipse Public License 1.0 as
* published by the Free Software Foundation.
*
* 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 Eclipse
* Public License for more details.
*
* You should have received a copy of the Eclipse 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.ironjacamar.core.bootstrapcontext;
import org.ironjacamar.common.api.metadata.spec.ConfigProperty;
import org.ironjacamar.core.CoreLogger;
import org.ironjacamar.core.workmanager.WorkManagerCoordinator;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.jboss.logging.Logger;
/**
* Coordinator for BootstrapContext instances
* @author <a href="jesper.pedersen@ironjacamar.org">Jesper Pedersen</a>
*/
public class BootstrapContextCoordinator
{
/** The logger */
private static CoreLogger log = Logger.getMessageLogger(CoreLogger.class,
BootstrapContextCoordinator.class.getName());
/** Whether trace is enabled */
private static boolean trace = log.isTraceEnabled();
/** The bootstrap contexts */
private ConcurrentMap<String, CloneableBootstrapContext> bootstrapContexts;
/** The default bootstrap context */
private CloneableBootstrapContext defaultBootstrapContext;
/** The activate bootstrap contexts */
private Map<String, CloneableBootstrapContext> activeBootstrapContexts;
/** The ref count for activate bootstrap contexts */
private Map<String, Integer> refCountBootstrapContexts;
private WorkManagerCoordinator workManagerCoordinator;
/**
* Constructor
*/
public BootstrapContextCoordinator()
{
this.bootstrapContexts = new ConcurrentHashMap<String, CloneableBootstrapContext>();
this.defaultBootstrapContext = null;
this.workManagerCoordinator = null;
this.activeBootstrapContexts = new HashMap<String, CloneableBootstrapContext>();
this.refCountBootstrapContexts = new HashMap<String, Integer>();
}
/**
* Register bootstrap context
* @param bc The bootstrap context
*/
public void registerBootstrapContext(CloneableBootstrapContext bc)
{
if (bc != null)
{
if (bc.getName() == null || bc.getName().trim().equals(""))
throw new IllegalArgumentException("The name of BootstrapContext is invalid: " + bc);
if (!bootstrapContexts.keySet().contains(bc.getName()))
{
bootstrapContexts.put(bc.getName(), bc);
}
}
}
/**
* Unregister boostrap context
* @param bc The bootstrap context
*/
public void unregisterBootstrapContext(CloneableBootstrapContext bc)
{
if (bc != null)
{
if (bc.getName() == null || bc.getName().trim().equals(""))
throw new IllegalArgumentException("The name of BootstrapContext is invalid: " + bc);
if (bootstrapContexts.keySet().contains(bc.getName()))
{
bootstrapContexts.remove(bc.getName());
}
}
}
/**
* Get the default bootstrap context
* @return The bootstrap context
*/
public CloneableBootstrapContext getDefaultBootstrapContext()
{
return defaultBootstrapContext;
}
/**
* Set the default bootstrap context
* @param bc The bootstrap context
*/
public void setDefaultBootstrapContext(CloneableBootstrapContext bc)
{
if (trace)
log.tracef("Default BootstrapContext: %s", bc);
String currentName = null;
if (defaultBootstrapContext != null)
currentName = defaultBootstrapContext.getName();
defaultBootstrapContext = bc;
if (bc != null)
{
bootstrapContexts.put(bc.getName(), bc);
}
else if (currentName != null)
{
bootstrapContexts.remove(currentName);
}
}
/**
* Set the workManagerCoordinator
* @param wcc The workManagerCoordinator
*/
public void setWorkManagerCoordinator(WorkManagerCoordinator wcc)
{
if (trace)
log.tracef("WorkManagerCoordinator: %s", wcc);
this.workManagerCoordinator = wcc;
}
/**
* Create a bootstrap context
* @param id The id of the bootstrap context
* @return The bootstrap context
*/
public synchronized CloneableBootstrapContext createBootstrapContext(String id)
{
return createBootstrapContext(id, null);
}
/**
* Get a bootstrap context
* @param id The id of the bootstrap context
* @param name The name of the bootstrap context; if <code>null</code> default value is used
* @return The bootstrap context
*/
public synchronized CloneableBootstrapContext createBootstrapContext(String id, String name)
{
if (id == null || id.trim().equals(""))
throw new IllegalArgumentException("The id of BootstrapContext is invalid: " + id);
// Check for an active BC
if (activeBootstrapContexts.keySet().contains(id))
{
Integer i = refCountBootstrapContexts.get(id);
refCountBootstrapContexts.put(id, Integer.valueOf(i.intValue() + 1));
return activeBootstrapContexts.get(id);
}
try
{
// Create a new instance
CloneableBootstrapContext template = null;
if (name != null)
{
template = bootstrapContexts.get(name);
}
else
{
template = defaultBootstrapContext;
}
if (template == null)
throw new IllegalArgumentException("The BootstrapContext wasn't found: " + name);
CloneableBootstrapContext bc = template.clone();
bc.setId(id);
org.ironjacamar.core.api.workmanager.WorkManager wm =
workManagerCoordinator.createWorkManager(id, bc.getWorkManagerName());
bc.setWorkManager(wm);
activeBootstrapContexts.put(id, bc);
refCountBootstrapContexts.put(id, Integer.valueOf(1));
if (trace)
log.tracef("Created BootstrapContext: %s", bc);
return bc;
}
catch (Throwable t)
{
throw new IllegalStateException("The BootstrapContext couldn't be created: " + name, t);
}
}
/**
* Remove a bootstrap context
* @param id The id of the bootstrap context
*/
public synchronized void removeBootstrapContext(String id)
{
if (id == null || id.trim().equals(""))
throw new IllegalArgumentException("The id of BootstrapContext is invalid: " + id);
Integer i = refCountBootstrapContexts.get(id);
if (i != null)
{
int newValue = i.intValue() - 1;
if (newValue == 0)
{
CloneableBootstrapContext cbc = activeBootstrapContexts.remove(id);
refCountBootstrapContexts.remove(id);
cbc.shutdown();
workManagerCoordinator.removeWorkManager(id);
}
else
{
refCountBootstrapContexts.put(id, Integer.valueOf(newValue));
}
}
}
/**
* Create an identifier
* @param raClz The resource adapter class name
* @param configProperties The config properties
* @return The id
*/
public String createIdentifier(String raClz, Collection<ConfigProperty> configProperties)
{
return createIdentifier(raClz, configProperties, null);
}
/**
* Create an identifier
* @param raClz The resource adapter class name
* @param configProperties The config properties
* @param bootstrapContextName The name of the bootstrap context
* @return The id
*/
public String createIdentifier(String raClz, Collection<ConfigProperty> configProperties,
String bootstrapContextName)
{
if (defaultBootstrapContext == null)
throw new IllegalArgumentException("No default BootstrapContext defined");
StringBuffer sb = new StringBuffer();
sb.append(raClz);
if (configProperties != null && configProperties.size() > 0)
{
sb.append(";");
Iterator<ConfigProperty> iterator = configProperties.iterator();
while (iterator.hasNext())
{
ConfigProperty entry = iterator.next();
sb.append(entry.getConfigPropertyName()).append("=").append(entry.getConfigPropertyValue());
if (iterator.hasNext())
sb.append(":");
}
}
sb.append("-");
if (bootstrapContextName != null && !bootstrapContextName.trim().equals(""))
{
sb.append(bootstrapContextName);
}
else
{
sb.append(defaultBootstrapContext.getName());
}
return sb.toString();
}
}