[jboss-cvs] JBossAS SVN: r78552 - in branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session: notification and 1 other directory.
jboss-cvs-commits at lists.jboss.org
jboss-cvs-commits at lists.jboss.org
Mon Sep 15 16:47:34 EDT 2008
Author: bstansberry at jboss.com
Date: 2008-09-15 16:47:34 -0400 (Mon, 15 Sep 2008)
New Revision: 78552
Added:
branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/
branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionManagementStatus.java
branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationCapability.java
branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationCause.java
branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationPolicy.java
branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationPolicyBase.java
branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/IgnoreUndeployLegacyClusteredSessionNotificationPolicy.java
branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/LegacyClusteredSessionNotificationPolicy.java
Log:
[JBAS-5778] Add pluggable policy for deciding whether to emit servlet spec notifications around events affecting clustered sessions
Added: branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionManagementStatus.java
===================================================================
--- branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionManagementStatus.java (rev 0)
+++ branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionManagementStatus.java 2008-09-15 20:47:34 UTC (rev 78552)
@@ -0,0 +1,103 @@
+/*
+ * 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.web.tomcat.service.session.notification;
+
+/**
+ * Encapsulates the status of how the local container is managing the
+ * given session.
+ *
+ * @author Brian Stansberry
+ */
+public class ClusteredSessionManagementStatus
+{
+ private final String realId;
+ private final boolean locallyUsed;
+ private final Boolean locallyActive;
+ private final Boolean locallyOwned;
+
+ public ClusteredSessionManagementStatus(String realId,
+ boolean locallyUsed,
+ Boolean locallyActive,
+ Boolean locallyOwned)
+ {
+ if (this.realId == null)
+ throw new IllegalArgumentException("realId is null");
+
+ this.realId = realId;
+ this.locallyUsed = locallyUsed;
+ // If we haven't been locallyUsed, we can't be locallyActive
+ this.locallyActive = (locallyUsed ? locallyActive : Boolean.FALSE);
+ // If we are locallyActive, we are locally owned
+ this.locallyOwned = (Boolean.TRUE.equals(locallyActive) ? Boolean.TRUE : locallyOwned);
+ }
+
+ /**
+ * Gets whether an HttpSession object for the given session has been
+ * returned from the container to the application on this node.
+ *
+ * @return <code>true</code> if the session has been used locally,
+ * <code>false</code> if not.
+ */
+ public boolean isLocallyUsed()
+ {
+ return locallyUsed;
+ }
+
+ /**
+ * Gets whether an HttpSession object for the given session has been
+ * returned from the container to the application on this node AND
+ * this node is the last one to handle a request for the session.
+ *
+ * @return <code>true</code> if the above conditions are true and the
+ * container is sure of this, <code>false</code> if they are not
+ * true and the container knows this, or <code>null</code> if the
+ * container is unsure if this node is the last one to handle a
+ * request for the session.
+ *
+ * @see ClusteredSessionNotificationCapability#isLocallyActiveAware()
+ */
+ public Boolean getLocallyActive()
+ {
+ return locallyActive;
+ }
+
+ /**
+ * Gets whether this node considers itself to be the "owner" of the session;
+ * i.e. the one primarily responsible for managing its lifecycle. Note that
+ * a node that is undeploying a war will always give up ownership of its
+ * sessions if it is aware of other nodes in the cluster that still have
+ * the war deployed.
+ *
+ * @return <code>true</code> if the container knows it is the owner,
+ * <code>false</code> if it knows it is not the owner, or
+ * <code>null</code> if the container is unsure about ownership
+ * or does not recognize the concept of ownership.
+ *
+ * @see ClusteredSessionNotificationCapability#isLocallyOwnedAware()
+ */
+ public Boolean getLocallyOwned()
+ {
+ return locallyOwned;
+ }
+
+}
Added: branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationCapability.java
===================================================================
--- branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationCapability.java (rev 0)
+++ branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationCapability.java 2008-09-15 20:47:34 UTC (rev 78552)
@@ -0,0 +1,133 @@
+/*
+ * 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.web.tomcat.service.session.notification;
+
+
+/**
+ * Encapsulates information about the container's capability to issue
+ * servlet spec notifications under different condititions. Implementations of
+ * {@link ClusteredSessionNotificationPolicy} can use this
+ * information to get a sense of the capabilities of the container.
+ *
+ * @author Brian Stansberry
+ */
+public class ClusteredSessionNotificationCapability
+{
+
+ /**
+ * Does the container support invoking <code>HttpSessionListener</code>
+ * callbacks under the given conditions?
+ *
+ * @param status the status of the session
+ * @param cause the cause of the session notification
+ * @param local <code>true</code> if the event driving the notification
+ * originated on this node; <code>false</code> otherwise
+ *
+ * @return <code>true</code> if the notification is supported,
+ * <code>false</code> if not
+ */
+ public boolean isHttpSessionListenerInvocationSupported(ClusteredSessionManagementStatus status,
+ ClusteredSessionNotificationCause cause,
+ boolean local)
+ {
+ return local && status.isLocallyUsed() && !ClusteredSessionNotificationCause.STATE_TRANSFER.equals(cause);
+ }
+
+ /**
+ * Under the given conditions, does the container support invoking
+ * <code>HttpSessionAttributeListener</code> callbacks?
+ *
+ * @param status the status of the session
+ * @param cause the cause of the session notification
+ * @param local <code>true</code> if the event driving the notification
+ * originated on this node; <code>false</code> otherwise
+ *
+ * @return <code>true</code> if the notification is supported,
+ * <code>false</code> if not
+ */
+ public boolean isHttpSessionAttributeListenerInvocationSupported(ClusteredSessionManagementStatus status,
+ ClusteredSessionNotificationCause cause,
+ boolean local)
+ {
+ return local && status.isLocallyUsed() && !ClusteredSessionNotificationCause.STATE_TRANSFER.equals(cause);
+ }
+
+ /**
+ * Under the given conditions, does the container support invoking
+ * <code>HttpSessionBindingListener</code> callbacks?
+ *
+ * @param status the status of the session
+ * @param cause the cause of the session notification
+ * @param local <code>true</code> if the event driving the notification
+ * originated on this node; <code>false</code> otherwise
+ *
+ * @return <code>true</code> if the notification is supported,
+ * <code>false</code> if not
+ */
+ public boolean isHttpSessionBindingListenerInvocationSupported(ClusteredSessionManagementStatus status,
+ ClusteredSessionNotificationCause cause,
+ boolean local)
+ {
+ return local && status.isLocallyUsed() && !ClusteredSessionNotificationCause.STATE_TRANSFER.equals(cause);
+ }
+
+ /**
+ * Is the container able to distinguish whether a session that has been
+ * {@link ClusteredSessionManagementStatus#isLocallyUsed() locally used}
+ * is also {@link ClusteredSessionManagementStatus#getLocallyActive() locally active}?
+ *
+ * @return <code>true</code> if the container is able to make this distinction;
+ * <code>false</code> if not
+ */
+ public boolean isLocallyActiveAware()
+ {
+ return false;
+ }
+
+ /**
+ * Is the container able to distinguish whether a session is
+ * {@link ClusteredSessionManagementStatus#getLocallyOwned() locally owned}?
+ *
+ * @return <code>true</code> if the container is able to make this distinction;
+ * <code>false</code> if not
+ */
+ public boolean isLocallyOwnedAware()
+ {
+ return false;
+ }
+
+ /**
+ * Returns whether the local container is aware of events on remote nodes
+ * that could give rise to notifications.
+ *
+ * @param cause the cause
+ * @return <code>true</code> if the local container is aware of the
+ * remote event, <code>false</code> if not.
+ */
+ public boolean isRemoteCauseAware(ClusteredSessionNotificationCause cause)
+ {
+ return ClusteredSessionNotificationCause.CREATE.equals(cause)
+ || ClusteredSessionNotificationCause.MODIFY.equals(cause)
+ || ClusteredSessionNotificationCause.INVALIDATE.equals(cause);
+ }
+}
Property changes on: branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationCapability.java
___________________________________________________________________
Name: svn:mergeinfo
+
Added: branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationCause.java
===================================================================
--- branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationCause.java (rev 0)
+++ branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationCause.java 2008-09-15 20:47:34 UTC (rev 78552)
@@ -0,0 +1,100 @@
+/*
+ * 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.web.tomcat.service.session.notification;
+
+/**
+ * Reasons why a servlet spec notification for a clustered session is being
+ * generated.
+ *
+ * @author Brian Stansberry
+ */
+public enum ClusteredSessionNotificationCause
+{
+ /**
+ * Session has been newly created.
+ */
+ CREATE,
+
+ /**
+ * Session has been modified by the application.
+ */
+ MODIFY,
+
+ /**
+ * Session has failed over and is now in use on the local node.
+ */
+ FAILOVER,
+
+ /**
+ * Session has failed over and is no longer active on the local node.
+ */
+ FAILAWAY,
+
+ /**
+ * Session is being invalidated by the application.
+ */
+ INVALIDATE,
+
+ /**
+ * Session is being expired by the container due to timeout.
+ */
+ TIMEOUT,
+
+ /**
+ * Session is being expired by the container due to undeploy of the
+ * web application.
+ */
+ UNDEPLOY,
+
+ /**
+ * Local node became aware of a session active on another node as
+ * a result of the local node receiving a bulk state transfer due to
+ * its being elected to provide backup for that other node's sessions.
+ */
+ STATE_TRANSFER//,
+
+// /**
+// * Local node has taken "ownership" of a session for a reason other than
+// * failover; i.e. the session hasn't become active on the local node. In this
+// * case the local node would have become aware of the session earlier (i.e.
+// * via {@link #CREATE} or {@link #STATE_TRANSFER}) and these notifications
+// * would signal the local node taking greater responsibility for the session.
+// * Typically a policy implementation would not allow notifications for a
+// * remotely originated CREATE or for a STATE_TRANSFER if it allows
+// * notifications for TAKE_OWNERSHIP, and vice versa. Otherwise, multiple
+// * notifications would be received for the same session.
+// */
+// TAKE_OWNERSHIP,
+//
+// /**
+// * Local node has relinquised "ownership" of a session for a reason other than
+// * {@link #FAILAWAY} {@link #INVALIDATE}, {@link #TIMEOUT} or {@link #UNDEPLOY};
+// * i.e. some other node is taking over as the owner of session.
+// * Typically a policy implementation would not allow notifications for a
+// * remotely originated CREATE or for a STATE_TRANSFER if it allows
+// * notifications for TAKE_OWNERSHIP, and vice versa. Otherwise, multiple
+// * notifications would be received for the same session.
+// */
+// RELINQUISH_OWNERSHIP
+
+}
\ No newline at end of file
Property changes on: branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationCause.java
___________________________________________________________________
Name: svn:mergeinfo
+
Added: branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationPolicy.java
===================================================================
--- branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationPolicy.java (rev 0)
+++ branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationPolicy.java 2008-09-15 20:47:34 UTC (rev 78552)
@@ -0,0 +1,115 @@
+/*
+ * 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.web.tomcat.service.session.notification;
+
+/**
+ * Policy for determining whether the servlet spec notifications related
+ * to expiring a session are allowed to be emitted on the local cluster node.
+ * <p>
+ * <strong>Note:</strong> The use of the word <strong>allowed</strong> above
+ * is intentional; if a given policy implementation returns <code>true</code>
+ * from one of the methods in this interface, that does not mean the listener
+ * will be invoked by the container, nor does the presence of a method in this
+ * interface imply that it will be invoked by the container in all cases. The
+ * only contract this interface creates is that before invoking a listener
+ * method, the container will invoke an implementation of this policy to
+ * get permission and will not invoke the listeners if this policy returns
+ * <code>false</code>. If the container does not support emitting notifications
+ * in certain cases, it may not bother checking if the notification is allowed,
+ * and even if it checks, it still will not emit the notification.
+ * </p>
+ * <p>
+ * An example of a case where the container may not support emitting a
+ * notification is for a session that has never been used locally.
+ * </p>
+ *
+ * @author Brian Stansberry
+ */
+public interface ClusteredSessionNotificationPolicy
+{
+ /**
+ * Are invocations of <code>HttpSessionListener</code> callbacks
+ * allowed under the given conditions?
+ *
+ * @param status the status of the session
+ * @param cause the cause of the session notification
+ * @param local <code>true</code> if the event driving the notification
+ * originated on this node; <code>false</code> otherwise
+ *
+ * @return <code>true</code> if the notification is allowed,
+ * <code>false</code> if not
+ */
+ boolean isHttpSessionListenerInvocationAllowed(ClusteredSessionManagementStatus status,
+ ClusteredSessionNotificationCause cause,
+ boolean local);
+
+
+ /**
+ * Under the given conditions, are invocations of
+ * <code>HttpSessionAttributeListener</code> callbacks allowed?
+ *
+ * @param status the status of the session
+ * @param cause the cause of the session notification
+ * @param attributeName value that would be passed to the <code>name</code>
+ * param of the <code>HttpSessionBindingEvent</code> if
+ * the listener were invoked
+ * @param local <code>true</code> if the event driving the notification
+ * originated on this node; <code>false</code> otherwise
+ *
+ * @return <code>true</code> if the notification is allowed,
+ * <code>false</code> if not
+ */
+ boolean isHttpSessionAttributeListenerInvocationAllowed(ClusteredSessionManagementStatus status,
+ ClusteredSessionNotificationCause cause,
+ String attributeName,
+ boolean local);
+
+ /**
+ * Under the given conditions, are invocations of
+ * <code>HttpSessionBindingListener</code> callbacks allowed?
+ *
+ * @param status the status of the session
+ * @param cause the cause of the session notification
+ * @param attributeName value that would be passed to the <code>name</code>
+ * param of the <code>HttpSessionBindingEvent</code> if
+ * the listener were invoked
+ * @param local <code>true</code> if the event driving the notification
+ * originated on this node; <code>false</code> otherwise
+ *
+ * @return <code>true</code> if the notification is allowed,
+ * <code>false</code> if not
+ */
+ boolean isHttpSessionBindingListenerInvocationAllowed(ClusteredSessionManagementStatus status,
+ ClusteredSessionNotificationCause cause,
+ String attributeName,
+ boolean local);
+
+ /**
+ * Provides the policy information about the container's capabilities with
+ * respect to issuing notifications. Will be invoked by the container before
+ * the first invocation of any of the other methods in this interface.
+ *
+ * @param capability the capability, Will not be <code>null</code>.
+ */
+ void setClusteredSessionExpriationNotificationCapability(ClusteredSessionNotificationCapability capability);
+}
Property changes on: branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationPolicy.java
___________________________________________________________________
Name: svn:mergeinfo
+
Added: branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationPolicyBase.java
===================================================================
--- branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationPolicyBase.java (rev 0)
+++ branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/ClusteredSessionNotificationPolicyBase.java 2008-09-15 20:47:34 UTC (rev 78552)
@@ -0,0 +1,29 @@
+package org.jboss.web.tomcat.service.session.notification;
+
+/**
+ * Base superclass for a {@link ClusteredSessionNotificationPolicy} implementation.
+ *
+ * @author Brian Stansberry
+ *
+ */
+public class ClusteredSessionNotificationPolicyBase
+{
+
+ private ClusteredSessionNotificationCapability capability;
+
+ public ClusteredSessionNotificationPolicyBase()
+ {
+ super();
+ }
+
+ public void setClusteredSessionExpriationNotificationCapability(ClusteredSessionNotificationCapability capability)
+ {
+ this.capability = capability;
+ }
+
+ public ClusteredSessionNotificationCapability getClusteredSessionExpriationNotificationCapability()
+ {
+ return this.capability;
+ }
+
+}
\ No newline at end of file
Added: branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/IgnoreUndeployLegacyClusteredSessionNotificationPolicy.java
===================================================================
--- branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/IgnoreUndeployLegacyClusteredSessionNotificationPolicy.java (rev 0)
+++ branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/IgnoreUndeployLegacyClusteredSessionNotificationPolicy.java 2008-09-15 20:47:34 UTC (rev 78552)
@@ -0,0 +1,64 @@
+/*
+ * 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.web.tomcat.service.session.notification;
+
+/**
+ * Does not allow invocation of HttpSessionListener or HttpSessionAttributeListener
+ * during session expiration due to undeploy.
+ *
+ * @author Brian Stansberry
+ */
+public class IgnoreUndeployLegacyClusteredSessionNotificationPolicy
+ extends LegacyClusteredSessionNotificationPolicy
+{
+ /**
+ * Overrides superclass to return <code>false</code> if the cause of the
+ * notification is {@link ClusteredSessionNotificationCause.UNDEPLOY}.
+ *
+ * @return <code>true</code> if <code>status.isLocallyUsed()</code>
+ * is <code>true</code> and the cause of the notification is not
+ * {@link ClusteredSessionNotificationCause.UNDEPLOY}.
+ */
+ public boolean isHttpSessionAttributeListenerInvocationAllowed(ClusteredSessionManagementStatus status,
+ ClusteredSessionNotificationCause cause, String attributeName, boolean local)
+ {
+ return !ClusteredSessionNotificationCause.UNDEPLOY.equals(cause)
+ && super.isHttpSessionAttributeListenerInvocationAllowed(status, cause, attributeName, local);
+ }
+
+ /**
+ * Overrides superclass to return <code>false</code> if the cause of the
+ * notification is {@link ClusteredSessionNotificationCause.UNDEPLOY}.
+ *
+ * @return <code>true</code> if <code>status.isLocallyUsed()</code>
+ * is <code>true</code> and the cause of the notification is not
+ * {@link ClusteredSessionNotificationCause.UNDEPLOY}.
+ */
+ public boolean isHttpSessionListenerInvocationAllowed(ClusteredSessionManagementStatus status,
+ ClusteredSessionNotificationCause cause, boolean local)
+ {
+ return !ClusteredSessionNotificationCause.UNDEPLOY.equals(cause)
+ && isHttpSessionListenerInvocationAllowed(status, cause, local);
+ }
+
+}
Added: branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/LegacyClusteredSessionNotificationPolicy.java
===================================================================
--- branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/LegacyClusteredSessionNotificationPolicy.java (rev 0)
+++ branches/Branch_4_2/tomcat/src/main/org/jboss/web/tomcat/service/session/notification/LegacyClusteredSessionNotificationPolicy.java 2008-09-15 20:47:34 UTC (rev 78552)
@@ -0,0 +1,73 @@
+/*
+ * 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.web.tomcat.service.session.notification;
+
+/**
+ * {@link ClusteredSessionNotificationPolicy} implementation that
+ * describes the behavior of JBoss AS releases prior to 4.2.4.
+ *
+ * @author Brian Stansberry
+ */
+public class LegacyClusteredSessionNotificationPolicy
+ extends ClusteredSessionNotificationPolicyBase
+ implements ClusteredSessionNotificationPolicy
+{
+ // -------------------------------------- ClusteredSessionNotificationPolicy
+
+ /**
+ * {@inheritDoc}
+ *
+ * @return <code>true</code> if <code>status.isLocallyUsed()</code>
+ * is <code>true</code>.
+ */
+ public boolean isHttpSessionAttributeListenerInvocationAllowed(ClusteredSessionManagementStatus status,
+ ClusteredSessionNotificationCause cause, String attributeName, boolean local)
+ {
+ return status.isLocallyUsed();
+ }
+
+ /**
+ * {@inheritDoc}
+ *
+ * @return <code>true</code> if <code>status.isLocallyUsed()</code>
+ * is <code>true</code>.
+ */
+ public boolean isHttpSessionBindingListenerInvocationAllowed(ClusteredSessionManagementStatus status,
+ ClusteredSessionNotificationCause cause, String attributeName, boolean local)
+ {
+ return status.isLocallyUsed();
+ }
+
+ /**
+ * {@inheritDoc}
+ *
+ * @return <code>true</code> if <code>status.isLocallyUsed()</code>
+ * is <code>true</code>.
+ */
+ public boolean isHttpSessionListenerInvocationAllowed(ClusteredSessionManagementStatus status,
+ ClusteredSessionNotificationCause cause, boolean local)
+ {
+ return status.isLocallyUsed();
+ }
+
+}
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