Merged 1.4 to HEAD

svn merge svn://svn.alfresco.com:3691/alfresco/BRANCHES/V1.4@4252 svn://svn.alfresco.com:3691/alfresco/BRANCHES/V1.4@4294 .
   svn revert root\common\common.xml
   svn resolved root\projects\repository\config\alfresco\script-services-context.xml


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@4634 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/policy/BaseBehaviour.java

@@ -0,0 +1,109 @@
+/**
+ * 
+ */
+package org.alfresco.repo.policy;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Stack;
+
+import org.alfresco.repo.policy.Behaviour.NotificationFrequency;
+import org.alfresco.util.ParameterCheck;
+
+/**
+ * Base behaviour implementation
+ * 
+ * @author Roy Wetherall
+ */
+public abstract class BaseBehaviour implements Behaviour 
+{
+	/** The notification frequency */
+	protected NotificationFrequency frequency = NotificationFrequency.EVERY_EVENT;
+	
+	/** Disabled stack **/
+	private StackThreadLocal disabled = new StackThreadLocal();
+	
+	/** Proxies **/
+	protected Map<Class, Object> proxies = new HashMap<Class, Object>();
+
+	/**
+	 * Default constructor
+	 */
+	public BaseBehaviour()
+	{
+		// Default constructor
+	}
+	
+	/**
+	 * Constructor
+	 * 
+	 * @param frequency		the notification frequency
+	 */
+	public BaseBehaviour(NotificationFrequency frequency)
+	{
+		ParameterCheck.mandatory("Frequency", frequency);
+		this.frequency = frequency;
+	}
+	
+	public void setNotificationFrequency(NotificationFrequency frequency)
+	{
+		this.frequency = frequency;
+	}
+
+	/**
+	 * Disable this behaviour for the curent thread
+	 */
+	public void disable() 
+	{
+	    Stack<Integer> stack = disabled.get();
+	    stack.push(hashCode());
+	}
+
+	/**
+	 * Enable this behaviour for the current thread
+	 */
+	public void enable() 
+	{
+	    Stack<Integer> stack = disabled.get();
+	    if (stack.peek().equals(hashCode()) == false)
+	    {
+	        throw new PolicyException("Cannot enable " + this.toString() + " at this time - mismatched with disable calls");
+	    }
+	    stack.pop();
+	}
+
+	/**
+	 * Indicates whether the this behaviour is current enabled or not
+	 * 
+	 * @return	true if the behaviour is enabled, false otherwise
+	 */
+	public boolean isEnabled() 
+	{
+	    Stack<Integer> stack = disabled.get();
+	    return stack.search(hashCode()) == -1;
+	}
+
+	/**
+	 * Get the notification frequency
+	 * 
+	 * @return	the notification frequency
+	 */
+	public NotificationFrequency getNotificationFrequency() 
+	{
+	    return frequency;
+	}
+	
+	/**
+     * Stack specific Thread Local
+     * 
+     * @author David Caruana
+     */
+    class StackThreadLocal extends ThreadLocal<Stack<Integer>>
+    {
+        @Override
+        protected Stack<Integer> initialValue()
+        {
+            return new Stack<Integer>();
+        }
+    }
+}