Index: lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/chatApplicationContext.xml
===================================================================
diff -u -r7312ae351ea504413d8b1976d9ed866c91eceb95 -rb1386844a7b440e82e8f1f02e5ce840ffbf19ed3
--- lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/chatApplicationContext.xml	(.../chatApplicationContext.xml)	(revision 7312ae351ea504413d8b1976d9ed866c91eceb95)
+++ lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/chatApplicationContext.xml	(.../chatApplicationContext.xml)	(revision b1386844a7b440e82e8f1f02e5ce840ffbf19ed3)
@@ -38,6 +38,7 @@
 				<property name="toolService"><ref bean="lamsToolService"/></property>
 				<property name="learnerService"><ref bean="learnerService"/></property>			
  				<property name="chatToolContentHandler"><ref bean="chatToolContentHandler"/></property>
+		   		<property name="exportContentService"><ref bean="exportToolContentService"/></property> 				
 			</bean>
 		</property>
 		<property name="transactionAttributes">
Index: lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/model/Chat.java
===================================================================
diff -u -r3c0a84b7023214fcdfc7e023f810aea87166957c -rb1386844a7b440e82e8f1f02e5ce840ffbf19ed3
--- lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/model/Chat.java	(.../Chat.java)	(revision 3c0a84b7023214fcdfc7e023f810aea87166957c)
+++ lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/model/Chat.java	(.../Chat.java)	(revision b1386844a7b440e82e8f1f02e5ce840ffbf19ed3)
@@ -85,6 +85,7 @@
 
 	private Set chatSessions;
 
+	//*********** NON Persisit fields
 	private IToolContentHandler toolContentHandler;
 
 	// Constructors
@@ -402,4 +403,12 @@
 		}
 		return chat;
 	}
+
+	public IToolContentHandler getToolContentHandler() {
+		return toolContentHandler;
+	}
+
+	public void setToolContentHandler(IToolContentHandler toolContentHandler) {
+		this.toolContentHandler = toolContentHandler;
+	}
 }
Index: lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/service/ChatService.java
===================================================================
diff -u -rcc504e79fcfddaab61fdb673e9866a1b57c2d12c -rb1386844a7b440e82e8f1f02e5ce840ffbf19ed3
--- lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/service/ChatService.java	(.../ChatService.java)	(revision cc504e79fcfddaab61fdb673e9866a1b57c2d12c)
+++ lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/service/ChatService.java	(.../ChatService.java)	(revision b1386844a7b440e82e8f1f02e5ce840ffbf19ed3)
@@ -28,6 +28,7 @@
 import java.io.IOException;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Set;
 
 import org.apache.commons.lang.StringUtils;
 import org.apache.log4j.Logger;
@@ -51,6 +52,9 @@
 import org.lamsfoundation.lams.contentrepository.service.RepositoryProxy;
 import org.lamsfoundation.lams.contentrepository.service.SimpleCredentials;
 import org.lamsfoundation.lams.learning.service.ILearnerService;
+import org.lamsfoundation.lams.learningdesign.service.ExportToolContentException;
+import org.lamsfoundation.lams.learningdesign.service.IExportToolContentService;
+import org.lamsfoundation.lams.learningdesign.service.ImportToolContentException;
 import org.lamsfoundation.lams.tool.ToolContentManager;
 import org.lamsfoundation.lams.tool.ToolSessionExportOutputData;
 import org.lamsfoundation.lams.tool.ToolSessionManager;
@@ -106,6 +110,8 @@
 
 	private IRepositoryService repositoryService = null;
 
+	private IExportToolContentService exportContentService;
+	
 	public ChatService() {
 		super();
 		// TODO Auto-generated constructor stub
@@ -240,7 +246,25 @@
      * @throws ToolException if any other error occurs
      */
 
-	public void exportToolContent(Long toolContentId, String toPath) throws DataMissingException, ToolException {
+	public void exportToolContent(Long toolContentId, String rootPath) throws DataMissingException, ToolException {
+		Chat toolContentObj = chatDAO.getByContentId(toolContentId);
+ 		if(toolContentObj == null)
+ 			throw new DataMissingException("Unable to find tool content by given id :" + toolContentId);
+ 		
+ 		//set ResourceToolContentHandler as null to avoid copy file node in repository again.
+ 		toolContentObj = Chat.newInstance(toolContentObj,toolContentId,null);
+ 		toolContentObj.setToolContentHandler(null);
+ 		toolContentObj.setChatSessions(null);
+ 		Set<ChatAttachment> atts = toolContentObj.getChatAttachments(); 
+ 		for(ChatAttachment att: atts){
+ 			att.setChat(null);
+ 		}
+		try {
+			exportContentService.registerFileClassForExport(ChatAttachment.class.getName(),"fileUuid","fileVersionId");
+			exportContentService.exportToolContent( toolContentId, toolContentObj,chatToolContentHandler, rootPath);
+		} catch (ExportToolContentException e) {
+			throw new ToolException(e);
+		}
 	}
 
     /**
@@ -249,7 +273,23 @@
      * @throws ToolException if any other error occurs
      */
 	public void importToolContent(Long toolContentId, Integer newUserUid, String toolContentPath) throws ToolException {
-		
+		try {
+			exportContentService.registerFileClassForImport(ChatAttachment.class.getName()
+					,"fileUuid","fileVersionId","fileName","fileType",null,null);
+			
+			Object toolPOJO =  exportContentService.importToolContent(toolContentPath,chatToolContentHandler);
+			if(!(toolPOJO instanceof Chat))
+				throw new ImportToolContentException("Import Chat tool content failed. Deserialized object is " + toolPOJO);
+			Chat toolContentObj = (Chat) toolPOJO;
+			
+//			reset it to new toolContentId
+			toolContentObj.setToolContentId(toolContentId);
+			toolContentObj.setCreateBy(new Long(newUserUid.longValue()));
+			
+			chatDAO.saveOrUpdate(toolContentObj);
+		} catch (ImportToolContentException e) {
+			throw new ToolException(e);
+		}
 	}
 	
 	/* ********** IChatService Methods ************************************** */
@@ -684,4 +724,12 @@
 		this.learnerService = learnerService;
 	}
 
+	public IExportToolContentService getExportContentService() {
+		return exportContentService;
+	}
+
+	public void setExportContentService(IExportToolContentService exportContentService) {
+		this.exportContentService = exportContentService;
+	}
+
 }