[jboss-svn-commits] JBL Code SVN: r10051 - labs/jbossesb/workspace/rsheridan/trunk/product/core/rosetta/src/org/jboss/soa/esb/notification.

[jboss-svn-commits at lists.jboss.org]

Author: rex.sheridan
Date: 2007-03-07 17:35:27 -0500 (Wed, 07 Mar 2007)
New Revision: 10051

Added:
   labs/jbossesb/workspace/rsheridan/trunk/product/core/rosetta/src/org/jboss/soa/esb/notification/NotificationTarget.java
Log:
Commit of bean configuration capabilities

Added: labs/jbossesb/workspace/rsheridan/trunk/product/core/rosetta/src/org/jboss/soa/esb/notification/NotificationTarget.java
===================================================================
--- labs/jbossesb/workspace/rsheridan/trunk/product/core/rosetta/src/org/jboss/soa/esb/notification/NotificationTarget.java	                        (rev 0)
+++ labs/jbossesb/workspace/rsheridan/trunk/product/core/rosetta/src/org/jboss/soa/esb/notification/NotificationTarget.java	2007-03-07 22:35:27 UTC (rev 10051)
@@ -0,0 +1,159 @@
+/*
+ * JBoss, Home of Professional Open Source
+ * Copyright 2006, JBoss Inc., and individual contributors as indicated
+ * by the @authors tag. See the copyright.txt 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.soa.esb.notification;
+
+import java.lang.reflect.Constructor;
+
+import org.jboss.soa.esb.ConfigurationException;
+import org.jboss.soa.esb.helpers.ConfigTree;
+import org.jboss.soa.esb.util.BeanConfigurator;
+
+/**
+ * Abstract class to define expected behaviour of all NotificationTargets and
+ * provide some common functionality to all of them
+ * <p>
+ * Description:
+ * </p>
+ * <p>
+ * Heuristica - Buenos Aires - Argentina
+ * </p>
+ * 
+ * @version 1.0
+ */
+public abstract class NotificationTarget
+{
+	/**
+	 * Derived classes must implement this method to do what has to be done to
+	 * trigger that specific type of notification event
+	 * 
+	 * @param p_o
+	 *            Object - The toString() method of this object will be the
+	 *            actual notification content
+	 * @throws NotificationException -
+	 *             invoke Exception.getMessage() at runtime for this object
+	 * @see ConfigTree
+	 */
+	public abstract void sendNotification (java.io.Serializable p_o)
+			throws NotificationException;
+
+	private static final String NOTIF_PFX = NotificationTarget.class
+			.getPackage().getName();
+
+	public static final String PRM_NOTIF_CLASS = "class";
+
+	/**
+	 * Common object to hold details of object's information - Each derived
+	 * class will hold it's own needs
+	 */
+	protected ConfigTree m_oParms;
+
+	/**
+	 * Instantiate an empty NotificationTarget object
+	 */
+	protected NotificationTarget ()
+	{
+	}
+
+	/**
+	 * Instantiate a NotificationTarget object with the information contained in
+	 * &lt;arg 1&gt;
+	 * 
+	 * @param p_oP
+	 *            ConfigTree - Holds details to instantiate this object
+	 */
+	protected NotificationTarget (ConfigTree p_oP)
+	{
+		m_oParms = p_oP;
+	} // __________________________________
+
+	/**
+	 * A typical Factory.getInstance() method
+	 * 
+	 * @param p_oP
+	 *            ConfigTree - Contents of this argument will determine the type
+	 *            (derived class) of NotificationTarget returned
+	 * @throws ConfigurationException -
+	 *             Arg 1 does not contain a valid structure for currently
+	 *             implemented NotificationTarget subclasses - invoke
+	 *             Exception.getMessage() at runtime for details
+	 * @return NotificationTarget - An object that instantiates the
+	 *         NotificationTarget abstract class
+	 */
+	public static NotificationTarget fromParams (ConfigTree p_oP)
+			throws ConfigurationException
+	{
+		String sClass = p_oP.getAttribute(PRM_NOTIF_CLASS);
+		if (null == sClass)
+			throw new IllegalArgumentException(
+					"Missing '" + PRM_NOTIF_CLASS + "' attribute in parameters");
+		Class oCls = null;
+		try
+		{
+			oCls = Class.forName(NOTIF_PFX + "." + sClass);
+		}
+		catch (Exception e)
+		{
+			try
+			{
+				oCls = Class.forName(sClass);
+			}
+			catch (Exception e1)
+			{/* oCls will be null */
+			}
+		}
+		if (null == oCls)
+			throw new ConfigurationException(
+					"Invalid class <" + sClass + ">, or missing library");
+
+		Constructor oCons = null;
+		Object oRet = null;
+		try
+		{
+			oCons = oCls.getConstructor(new Class[] { ConfigTree.class });
+			
+			try
+			{
+				oRet = oCons.newInstance(new Object[] { p_oP });
+			}
+			catch (Exception e)
+			{
+				e.printStackTrace();
+			}
+		}
+		catch (Exception e)
+		{
+			try {
+				oCons = oCls.getConstructor(new Class[] {});
+				oRet = oCons.newInstance(new Object[] {});
+				BeanConfigurator configurator = new BeanConfigurator(p_oP, oRet);
+				configurator.configure();
+			}  catch(Exception e1) {
+				throw new ConfigurationException("Unable to configure NotificationTarget as a bean.  class="+oCls.getName(), e1);
+			}
+		}
+		if (null == oRet || (!(oRet instanceof NotificationTarget)))
+			throw new ConfigurationException(sClass + "  does not extend NotificationTarget");
+
+		return (NotificationTarget) oRet;
+	} // __________________________________
+} // ____________________________________________________________________________