User: slaboure
Date: 01/08/19 11:27:49
Added: src/main/org/jboss/ejb/plugins/jrmp/interfaces
GenericProxyHA.java HASLSBTargetsManager.java
HomeProxyHA.java StatelessSessionProxyHA.java
Log:
First import of source for HA support for SLSB
Revision Changes Path
1.1
jbossmx/src/main/org/jboss/ejb/plugins/jrmp/interfaces/GenericProxyHA.java
Index: GenericProxyHA.java
===================================================================
/*
* JBoss, the OpenSource J2EE WebOS
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package org.jboss.ejb.plugins.jrmp.interfaces;
import java.lang.reflect.Method;
import java.util.Hashtable;
import java.io.IOException;
import java.rmi.MarshalledObject;
import javax.naming.InitialContext;
import javax.naming.Name;
import javax.ejb.EJBObject;
import javax.ejb.EJBHome;
import org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker;
/**
* Branched from GenericProxy for HA behaviour
*
* @see GenericProxy
* @author Rickard �berg ([EMAIL PROTECTED])
* @author <a href="mailto:[EMAIL PROTECTED]";>Marc Fleury</a>
* @author <a href="mailto:[EMAIL PROTECTED]";>Sacha Labourey</a>
* @version $Revision: 1.1 $
*
* <p><b>Revisions:</b>
*
* <p><b>20010819 Sacha Labourey:</b>
* <ul>
* <li> First import of sources
* </ul>
*/
public class GenericProxyHA extends GenericProxy
{
public interface TargetsManager extends java.io.Serializable
{
void setFather (GenericProxyHA father);
Hashtable getJndiTarget ();
int numberOfRegisteredJndiTargets ();
void jndiTargetHasFailed (Hashtable entry);
ContainerRemote getRemoteTarget ();
int numberOfRegisteredRemoteTargets ();
void remoteTargetHasFailed (ContainerRemote target);
void tick ();
}
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
// Static --------------------------------------------------------
protected ContainerRemote[] crs;
protected Hashtable[] jndiProps;
protected String completeHAAppName;
protected Object resynchFlag = new Object ();
protected TargetsManager manager = null;
// Constructors --------------------------------------------------
public GenericProxyHA ()
{
// For externalization to work
}
public GenericProxyHA (String name,ContainerRemote container,boolean optimize)
{
super(name, container, optimize);
}
public GenericProxyHA (String name,ContainerRemote container,boolean optimize,
TargetsManager mgr)
{
super(name, container, optimize);
this.manager = mgr;
this.manager.setFather (this);
}
// Public --------------------------------------------------------
/**
* Externalize this instance.
*
*/
public void writeExternal (java.io.ObjectOutput out)
throws IOException
{
super.writeExternal (out);
out.writeObject (this.crs);
out.writeObject (this.jndiProps);
out.writeUTF (completeHAAppName);
out.writeObject (this.manager);
}
/**
* Un-externalize this instance.
*
*/
public void readExternal (java.io.ObjectInput in)
throws IOException, ClassNotFoundException
{
super.readExternal (in);
this.crs = (ContainerRemote[])in.readObject ();
this.jndiProps = (Hashtable[])in.readObject ();
this.completeHAAppName = in.readUTF ();
this.manager = (TargetsManager)in.readObject ();
manager.setFather (this);
}
public void setMultipleContainers (ContainerRemote[] containers, Hashtable[]
jndiProps, String appPath)
{
crs = containers;
this.jndiProps = jndiProps;
this.completeHAAppName = appPath;
}
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
// simply delegates our calls to our manager
//
protected java.util.Hashtable getJndiTarget ()
{
return manager.getJndiTarget ();
}
protected int numberOfRegisteredJndiTargets ()
{
return manager.numberOfRegisteredJndiTargets ();
}
protected void jndiTargetHasFailed (Hashtable entry)
{
manager.jndiTargetHasFailed (entry);
}
protected ContainerRemote getRemoteTarget ()
{
return manager.getRemoteTarget ();
}
protected int numberOfRegisteredRemoteTargets ()
{
return manager.numberOfRegisteredRemoteTargets ();
}
protected void remoteTargetHasFailed (ContainerRemote target)
{
manager.remoteTargetHasFailed (target);
}
protected void tick ()
{
manager.tick ();
}
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}
1.1
jbossmx/src/main/org/jboss/ejb/plugins/jrmp/interfaces/HASLSBTargetsManager.java
Index: HASLSBTargetsManager.java
===================================================================
/*
* JBoss, the OpenSource J2EE WebOS
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package org.jboss.ejb.plugins.jrmp.interfaces;
import java.util.Hashtable;
import javax.naming.InitialContext;
/**
* Test implementation of a TargetsManager
*
* @see GenericProxyHA.TargetsManager
* @author <a href="mailto:[EMAIL PROTECTED]";>Sacha Labourey</a>
* @version $Revision: 1.1 $
*
* <p><b>Revisions:</b>
*
* <p><b>20010819 Sacha Labourey:</b>
* <ul>
* <li> First import of sources
* </ul>
*/
public class HASLSBTargetsManager implements GenericProxyHA.TargetsManager
{
protected transient int cursorRemote = 0;
protected transient int cursorJndi = 0;
protected volatile long DELAY_FOR_RESYNCH_AFTER_DEAD_CONTAINER = 5000; // 5
seconds
protected volatile long DELAY_FOR_RESYNCH_FOR_NORMAL_UPDATE = 30000; // 30 seconds
protected transient volatile long nextResynch;
protected transient volatile boolean updatingData = false;
protected transient Object sync_1 = new Object ();
protected transient java.util.Vector validJndiTargets = null;
protected transient GenericProxyHA father = null;
public HASLSBTargetsManager ()
{
}
public HASLSBTargetsManager (long normalResynch, long deathResynch)
{
DELAY_FOR_RESYNCH_AFTER_DEAD_CONTAINER = deathResynch;
DELAY_FOR_RESYNCH_FOR_NORMAL_UPDATE = normalResynch;
}
public void setFather (GenericProxyHA father)
{
this.father = father;
if (father.jndiProps != null)
validJndiTargets = new java.util.Vector (java.util.Arrays.asList
(father.jndiProps));
nextResynch = System.currentTimeMillis () +
DELAY_FOR_RESYNCH_FOR_NORMAL_UPDATE;
updatingData = false;
}
public java.util.Hashtable getJndiTarget ()
{
if (validJndiTargets.size () == 0)
{
findTargetsSynchronously ();
if (validJndiTargets.size () == 0)
return null;
}
cursorJndi = ( (cursorJndi + 1) % validJndiTargets.size () );
return (Hashtable)(validJndiTargets.elementAt (cursorJndi));
}
public int numberOfRegisteredJndiTargets ()
{
return validJndiTargets.size ();
}
public void jndiTargetHasFailed (Hashtable entry)
{
validJndiTargets.remove (entry);
}
public ContainerRemote getRemoteTarget ()
{
if (father.crs.length == 0)
{
findTargetsSynchronously ();
if (father.crs.length == 0)
return null;
}
synchronized (father.crs)
{
cursorRemote = ( (cursorRemote + 1) % father.crs.length );
return father.crs[cursorRemote];
}
}
public int numberOfRegisteredRemoteTargets ()
{
return father.crs.length;
}
public void remoteTargetHasFailed (ContainerRemote target)
{
removeDeadTarget (target);
}
protected void removeDeadTarget (ContainerRemote target)
{
//System.out.println("Size before : " + Integer.toString(father.crs.length));
if (father.crs != null)
synchronized (father.crs)
{
//System.out.println("removeDeadTarget has been called");
int length = father.crs.length;
for (int i=0; i<length; ++i)
if (father.crs[i] == target)
{
ContainerRemote[] copy = new ContainerRemote[length - 1];
//Hashtable[] copyProps = new Hashtable[length - 1];
System.arraycopy (father.crs, 0, copy, 0, i);
//System.arraycopy(jndiProps, 0, copyProps, 0, i);
if ( (i+1) < length)
{
System.arraycopy (father.crs, i+1, copy, i, length - i - 1);
//System.arraycopy(jndiProps, i+1, copyProps, i, length - i -
1);
}
father.crs = copy;
//jndiProps = copyProps;
resynchAtLeastAt (System.currentTimeMillis () +
DELAY_FOR_RESYNCH_AFTER_DEAD_CONTAINER);
//System.out.println("Size before : " +
Integer.toString(father.crs.length));
return;
}
}
// nothing found
}
protected void findTargetsSynchronously ()
{
// if this is called, it is because our target list is empty
//
//System.out.println("findTargetsSynchronously has been called");
synchronized (this)
{
if (father.crs.length > 0)
return; // the list has been probably refilled during our wait for the
monitor
updateContainers ();
}
}
protected void findTargetsAsynchronously ()
{
//System.out.println("findTargetsAsynchronously has been called");
updatingData = true;
Thread t = new Thread ( new Runnable ()
{
public void run ()
{
try
{
synchronized(this)
{
updateContainers ();
}
} finally
{
updatingData = false;
}
}
}
);
t.start ();
}
public void tick ()
{
if (!updatingData) // this is done in order to do not have to wait on
asynchronous updates
{
boolean resynch = false;
synchronized (this)
{
long now = System.currentTimeMillis ();
resynch = (now >= nextResynch);
if (resynch)
{
//System.out.println("Tick has decided to resynch. Next auto resynh
at " + Long.toString(now + DELAY_FOR_RESYNCH_FOR_NORMAL_UPDATE ) + " (now is " +
Long.toString (now) + " and old update value was: " + Long.toString(nextResynch) +
")");
nextResynch = ( now + DELAY_FOR_RESYNCH_FOR_NORMAL_UPDATE ) ;
}
}
if (resynch)
findTargetsAsynchronously ();
}
}
protected void resynchAtLeastAt (long when)
{
// only keep more urgent resynch need
//
if ( (nextResynch == 0) || (when < nextResynch) )
nextResynch = when;
}
protected void updateContainers ()
{
//nextResynch = 0;
//System.out.println("updateContainers has been called");
if (father.jndiProps != null)
{
org.jboss.ha.HASmallConfigEntries haConfigs = null;
for (int i=0; i<father.jndiProps.length; i++)
{
try
{
//System.out.println("... Test with i = " + Integer.toString (i));
Object obj = new InitialContext (father.jndiProps[i]).lookup
("/HA/HAConfigServer");
if (obj instanceof org.jboss.ha.HARemoteInfo)
{
haConfigs = (
(org.jboss.ha.HARemoteInfo)obj).getSmallConfigEntriesForApp (father.completeHAAppName);
if (haConfigs != null)
if (haConfigs.size () > 0)
{
ContainerRemote[] tmpCr = haConfigs.getContainers ();
Hashtable[] tmpJndi = haConfigs.getJndiProps ();
java.util.Vector tmpV = new java.util.Vector
(java.util.Arrays.asList (tmpJndi)); // reduce time in synch zone
synchronized (father.crs)
{
father.crs = tmpCr;
father.jndiProps = tmpJndi;
validJndiTargets = tmpV;
}
this.DELAY_FOR_RESYNCH_AFTER_DEAD_CONTAINER =
haConfigs.delayForResynchAfterDeath;
this.DELAY_FOR_RESYNCH_FOR_NORMAL_UPDATE =
haConfigs.delayForRefresh;
// This will have an impact only if the new value is smaller
//
resynchAtLeastAt (System.currentTimeMillis () +
DELAY_FOR_RESYNCH_FOR_NORMAL_UPDATE);
return;
}
}
}
catch (Exception e)
{/*e.printStackTrace ();*/} // during debug phase only!!!
}
}
}
}
1.1
jbossmx/src/main/org/jboss/ejb/plugins/jrmp/interfaces/HomeProxyHA.java
Index: HomeProxyHA.java
===================================================================
/*
* JBoss, the OpenSource J2EE WebOS
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package org.jboss.ejb.plugins.jrmp.interfaces;
import java.io.IOException;
import java.lang.reflect.Method;
import java.rmi.MarshalledObject;
import javax.naming.Name;
import javax.ejb.EJBHome;
import javax.ejb.EJBObject;
import javax.ejb.Handle;
import javax.ejb.HomeHandle;
import javax.ejb.EJBMetaData;
import org.jboss.ejb.CacheKey;
import org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker;
/**
* Branched from HomeProxy for HA behaviour
*
* @see HomeProxy
* @author Rickard �berg ([EMAIL PROTECTED])
* @author <a href="mailto:[EMAIL PROTECTED]";>Marc Fleury</a>
* @author <a href="mailto:[EMAIL PROTECTED]";>Sacha Labourey</a>
* @version $Revision: 1.1 $
*
* <p><b>Revisions:</b>
*
* <p><b>20010819 Sacha Labourey:</b>
* <ul>
* <li> First import of sources
* </ul>
*/
public class HomeProxyHA extends GenericProxyHA
{
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
EJBMetaData ejbMetaData;
// Static --------------------------------------------------------
static Method getEJBMetaData;
static Method getHomeHandle;
static Method removeByHandle;
static Method removeByPrimaryKey;
static Method removeObject;
static Method toStr;
static Method eq;
static Method hash;
static
{
try
{
// EJB methods
getEJBMetaData = EJBHome.class.getMethod ("getEJBMetaData", new Class[0]);
getHomeHandle = EJBHome.class.getMethod ("getHomeHandle", new Class[0]);
removeByHandle = EJBHome.class.getMethod ("remove", new Class[]
{Handle.class});
removeByPrimaryKey = EJBHome.class.getMethod ("remove", new Class[]
{Object.class});
// Get the "remove" method from the EJBObject
removeObject = EJBObject.class.getMethod ("remove", new Class[0]);
// Object methods
toStr = Object.class.getMethod ("toString", new Class[0]);
eq = Object.class.getMethod ("equals", new Class[]
{ Object.class });
hash = Object.class.getMethod ("hashCode", new Class[0]);
} catch (Exception e)
{
e.printStackTrace ();
}
}
// Constructors --------------------------------------------------
public HomeProxyHA ()
{
// For Externalizable to work
}
public HomeProxyHA (String name, EJBMetaData ejbMetaData,
ContainerRemote container, boolean optimize,
TargetsManager mgr)
{
super (name, container, optimize, mgr);
this.ejbMetaData = ejbMetaData;
}
// Public --------------------------------------------------------
// InvocationHandler implementation ------------------------------
public Object invoke (Object proxy, Method m, Object[] args)
throws Throwable
{
// Normalize args to always be an array
// Isn't this a bug in the proxy call??
if (args == null)
args = new Object[0];
// Implement local methods
if (m.equals (toStr))
{
return name+"Home";
}
else if (m.equals (eq))
{
// equality of the proxy home is based on names...
return new Boolean (invoke (proxy,toStr, args).equals (name+"Home"));
}
else if (m.equals (hash))
{
return new Integer (this.hashCode ());
}
// Implement local EJB calls
else if (m.equals (getHomeHandle))
{
return new HomeHandleImpl (name);
}
else if (m.equals (getEJBMetaData))
{
return ejbMetaData;
}
else if (m.equals (removeByHandle))
{
// First get the EJBObject
EJBObject object = ((Handle) args[0]).getEJBObject ();
// remove the object from here
object.remove ();
// Return Void
return Void.TYPE;
}
// The trick is simple we trick the container in believe it is a remove() on
the instance
else if (m.equals (removeByPrimaryKey))
{
if (optimize && isLocal ())
{
return container.invoke (
// The first argument is the id
new CacheKey (args[0]),
// Pass the "removeMethod"
removeObject,
// this is a remove() on the object
new Object[0],
// Tx stuff
getTransaction (),
// Security attributes
getPrincipal (), getCredential ());
} else
{
// Build a method invocation that carries the identity of the target
object
RemoteMethodInvocation rmi = new RemoteMethodInvocation (
// The first argument is the id
new CacheKey (args[0]),
// Pass the "removeMethod"
removeObject,
// this is a remove() on the object
new Object[0]);
// Set the transaction context
rmi.setTransactionPropagationContext (getTransactionPropagationContext
());
// Set the security stuff
// MF fixme this will need to use "thread local" and therefore same
construct as above
// rmi.setPrincipal(sm != null? sm.getPrincipal() : null);
// rmi.setCredential(sm != null? sm.getCredential() : null);
// is the credential thread local? (don't think so... but...)
rmi.setPrincipal ( getPrincipal () );
rmi.setCredential ( getCredential () );
// Invoke on the remote server, enforce marshaling
if (isLocal ())
{
// We need to make sure marshaling of exceptions is done properly
try
{
return container.invoke (new MarshalledObject (rmi)).get ();
} catch (Throwable e)
{
throw (Throwable)new MarshalledObject (e).get ();
}
} else
{
// Marshaling is done by RMI
return container.invoke (new MarshalledObject (rmi)).get ();
}
}
}
// If not taken care of, go on and call the container
else
{
// Delegate to container
// Optimize if calling another bean in same EJB-application
if (optimize && isLocal ())
{
return container.invokeHome ( // The method and arguments for the
invocation
m, args,
// Transaction attributes
getTransaction (),
// Security attributes
getPrincipal (), getCredential ());
} else
{
// Create a new MethodInvocation for distribution
RemoteMethodInvocation rmi = new RemoteMethodInvocation (null, m, args);
// Set the transaction propagation context
rmi.setTransactionPropagationContext (getTransactionPropagationContext
());
// Set the security stuff
// MF fixme this will need to use "thread local" and therefore same
construct as above
// rmi.setPrincipal(sm != null? sm.getPrincipal() : null);
// rmi.setCredential(sm != null? sm.getCredential() : null);
// is the credential thread local? (don't think so... but...)
rmi.setPrincipal ( getPrincipal () );
rmi.setCredential ( getCredential () );
// Invoke on the remote server, enforce marshaling
if (isLocal ())
{
// We need to make sure marshaling of exceptions is done properly
try
{
return container.invokeHome (new MarshalledObject (rmi)).get ();
} catch (Throwable e)
{
throw (Throwable)new MarshalledObject (e).get ();
}
} else
{
// Marshaling is done by RMI
// Marshaling is done by RMI
//
ContainerRemote aTarget = null;
java.rmi.RemoteException lastProblem = null;
tick ();
// this proxy must support concurrent invocations
//
while (true)
{
synchronized (crs)
{
aTarget = getRemoteTarget ();
if (numberOfRegisteredRemoteTargets () == 0)
throw ( (lastProblem==null)? new java.rmi.RemoteException
("No more valid HA SLSB home availble") : lastProblem );
}
try
{
return aTarget.invokeHome (new MarshalledObject (rmi)).get ();
}
catch (java.rmi.RemoteException e)
{
System.out.println ("A SLSB home target has failed with a
RemoteException");
remoteTargetHasFailed (aTarget);
lastProblem = e;
}
}
}
}
}
}
public void writeExternal (java.io.ObjectOutput out)
throws IOException
{
super.writeExternal (out);
out.writeObject (ejbMetaData);
}
public void readExternal (java.io.ObjectInput in)
throws IOException, ClassNotFoundException
{
super.readExternal (in);
ejbMetaData = (EJBMetaData)in.readObject ();
}
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}
1.1
jbossmx/src/main/org/jboss/ejb/plugins/jrmp/interfaces/StatelessSessionProxyHA.java
Index: StatelessSessionProxyHA.java
===================================================================
/*
* JBoss, the OpenSource J2EE WebOS
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package org.jboss.ejb.plugins.jrmp.interfaces;
import java.lang.reflect.Method;
import java.util.Hashtable;
import java.io.IOException;
import java.rmi.MarshalledObject;
import javax.naming.InitialContext;
import javax.naming.Name;
import javax.ejb.EJBObject;
import javax.ejb.EJBHome;
import org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker;
import org.jboss.ejb.plugins.jrmp.interfaces.StatelessHandleImpl;
/**
* Branched from StatelessSessionProxy for HA behaviour
*
* @see StatelessSessionProxy
* @author Rickard �berg ([EMAIL PROTECTED])
* @author <a href="mailto:[EMAIL PROTECTED]";>Marc Fleury</a>
* @author <a href="mailto:[EMAIL PROTECTED]";>Sacha Labourey</a>
* @version $Revision: 1.1 $
*
* <p><b>Revisions:</b>
*
* <p><b>20010819 Sacha Labourey:</b>
* <ul>
* <li> First import of sources
* </ul>
*/
public class StatelessSessionProxyHA extends GenericProxyHA
{
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
// Static --------------------------------------------------------
static Method getPrimaryKey;
static Method getHandle;
static Method getEJBHome;
static Method isIdentical;
static Method toStr;
static Method eq;
static Method hash;
static
{
try
{
// EJBObject methods
getPrimaryKey = EJBObject.class.getMethod ("getPrimaryKey", new Class[0]);
getHandle = EJBObject.class.getMethod ("getHandle", new Class[0]);
getEJBHome = EJBObject.class.getMethod ("getEJBHome", new Class[0]);
isIdentical = EJBObject.class.getMethod ("isIdentical", new Class[]
{ EJBObject.class });
// Object methods
toStr = Object.class.getMethod ("toString", new Class[0]);
eq = Object.class.getMethod ("equals", new Class[]
{ Object.class });
hash = Object.class.getMethod ("hashCode", new Class[0]);
} catch (Exception e)
{
e.printStackTrace ();
}
}
// Constructors --------------------------------------------------
public StatelessSessionProxyHA ()
{
// For externalization to work
}
public StatelessSessionProxyHA (String name,ContainerRemote container,boolean
optimize, TargetsManager mgr)
{
super (name, container, optimize, mgr);
}
// Public --------------------------------------------------------
/**
* Externalize this instance.
*
*/
public void writeExternal (java.io.ObjectOutput out)
throws IOException
{
super.writeExternal (out);
}
/**
* Un-externalize this instance.
*
*/
public void readExternal (java.io.ObjectInput in)
throws IOException, ClassNotFoundException
{
super.readExternal (in);
}
// InvocationHandler implementation ------------------------------
public final Object invoke (Object proxy, Method m, Object[] args)
throws Throwable
{
// Normalize args to always be an array
// Isn't this a bug in the proxy call??
if (args == null)
args = new Object[0];
// Implement local methods
if (m.equals (toStr))
{
return name+":Stateless";
}
else if (m.equals (eq))
{
return invoke (proxy, isIdentical, args);
}
else if (m.equals (hash))
{
// We base the stateless hash on the hash of the proxy...
// MF XXX: it could be that we want to return the hash of the name?
return new Integer (this.hashCode ());
}
// Implement local EJB calls
else if (m.equals (getHandle))
{
return new StatelessHandleImpl (null, name);
}
else if (m.equals (getPrimaryKey))
{
// MF FIXME
// The spec says that SSB PrimaryKeys should not be returned and the call
should throw an exception
// However we need to expose the field *somehow* so we can check for
"isIdentical"
// For now we use a non-spec compliant implementation and just return the
key as is
// See jboss1.0 for the PKHolder and the hack to be spec-compliant and yet
solve the problem
// This should be the following call
//throw new RemoteException("Session Beans do not expose their keys, RTFS");
// This is how it can be solved with a PKHolder (extends RemoteException)
// throw new PKHolder("RTFS", name);
// This is non-spec compliant but will do for now
// We can consider the name of the container to be the primary key, since
all stateless beans
// are equal within a home
return name;
}
else if (m.equals (getEJBHome))
{
Hashtable aServerProps = null;
javax.naming.NamingException lastProblem = null;
while (true)
{
synchronized (crs)
{
aServerProps = getJndiTarget ();
if (numberOfRegisteredJndiTargets () == 0)
throw ( (lastProblem==null)? new javax.naming.NamingException ("No
more valid HA SLSB container availble") : lastProblem );
}
try
{
return (EJBHome) new InitialContext (aServerProps).lookup (name);
}
catch (javax.naming.NamingException e)
{
jndiTargetHasFailed (aServerProps);
lastProblem = e;
}
}
}
else if (m.equals (isIdentical))
{
// All stateless beans are identical within a home, if the names are equal
we are equal
return new Boolean (((EJBObject)args[0]).getPrimaryKey ().equals (name));
}
// If not taken care of, go on and call the container
else
{
// Delegate to container
// Optimize if calling another bean in same EJB-application
if (optimize && isLocal ())
{
return container.invoke ( // The entity id, method and arguments for the
invocation
null, m, args,
// Transaction attributes
getTransaction (),
// Security attributes
getPrincipal (), getCredential ());
} else
{
// Create a new MethodInvocation for distribution
RemoteMethodInvocation rmi = new RemoteMethodInvocation (null, m, args);
// Set the transaction context
rmi.setTransactionPropagationContext (getTransactionPropagationContext
());
// Set the security stuff
// MF fixme this will need to use "thread local" and therefore same
construct as above
// rmi.setPrincipal(sm != null? sm.getPrincipal() : null);
// rmi.setCredential(sm != null? sm.getCredential() : null);
// is the credential thread local? (don't think so... but...)
rmi.setPrincipal ( getPrincipal () );
rmi.setCredential ( getCredential () );
// Invoke on the remote server, enforce marshaling
if (isLocal ())
{
// We need to make sure marshaling of exceptions is done properly
try
{
return container.invoke (new MarshalledObject (rmi)).get ();
} catch (Throwable e)
{
throw (Throwable)new MarshalledObject (e).get ();
}
}
else
{
// Marshaling is done by RMI
//
ContainerRemote aTarget = null;
java.rmi.RemoteException lastProblem = null;
tick ();
// this proxy must support concurrent invocations
//
while (true)
{
synchronized (crs)
{
aTarget = getRemoteTarget ();
if (numberOfRegisteredRemoteTargets () == 0)
throw ( (lastProblem==null)? new java.rmi.RemoteException
("No more valid HA SLSB container availble") : lastProblem );
}
try
{
return aTarget.invoke (new MarshalledObject (rmi)).get ();
}
catch (java.rmi.RemoteException e)
{
remoteTargetHasFailed (aTarget);
lastProblem = e;
}
}
}
}
}
}
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}
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