Index: lams_common/src/java/org/lamsfoundation/lams/tool/ToolContentManager.java
===================================================================
diff -u
--- lams_common/src/java/org/lamsfoundation/lams/tool/ToolContentManager.java	(revision 0)
+++ lams_common/src/java/org/lamsfoundation/lams/tool/ToolContentManager.java	(revision 14092613cbb3d0bec8c306d5a6abdf6de151307f)
@@ -0,0 +1,35 @@
+/* ********************************************************************************
+ *  Copyright Notice
+ *  =================
+ * This file contains propriety information of LAMS Foundation. 
+ * Copying or reproduction with prior written permission is prohibited.
+ * Copyright (c) 2004 
+ * Created on 2004-12-7
+ ******************************************************************************** */
+
+package org.lamsfoundation.lams.tool;
+
+
+/**
+ * Tool interface that defines the contract regarding tool content manipulation.
+ * 
+ * @author Jacky Fang 2004-12-7
+ * 
+ */
+public interface ToolContentManager
+{
+    /**
+     * Make a copy of requested tool content. It will be needed by lams to 
+     * create a copy of learning design and start a new tool session.
+     * @param fromContentId the original tool content id.
+     * @param toContentId the destination tool content id.
+     */
+    public void copyToolContent(Long fromContentId, Long toContentId);	
+    
+    /**
+     * Remove tool's content according specified the content id. It will be 
+     * needed by lams to modify the learning design.
+     * @param toolContentId the requested tool content id.
+     */
+    public void removeToolContent(Long toolContentId);
+}
Index: lams_common/src/java/org/lamsfoundation/lams/tool/ToolSessionExportOutputData.java
===================================================================
diff -u
--- lams_common/src/java/org/lamsfoundation/lams/tool/ToolSessionExportOutputData.java	(revision 0)
+++ lams_common/src/java/org/lamsfoundation/lams/tool/ToolSessionExportOutputData.java	(revision 14092613cbb3d0bec8c306d5a6abdf6de151307f)
@@ -0,0 +1,49 @@
+/* ********************************************************************************
+ *  Copyright Notice
+ *  =================
+ * This file contains propriety information of LAMS Foundation. 
+ * Copying or reproduction with prior written permission is prohibited.
+ * Copyright (c) 2004 
+ * Created on 2004-12-7
+ ******************************************************************************** */
+
+package org.lamsfoundation.lams.tool;
+
+import java.util.List;
+
+
+/**
+ * Value object for exporting output. We expect this object to be immutable once
+ * it is created.
+ * @author Jacky Fang 2004-12-7
+ * 
+ */
+public class ToolSessionExportOutputData
+{
+    private List toolSessionIds;
+    private String exportData;
+
+    /**
+     * Construtor
+     */
+    public ToolSessionExportOutputData(String exportData,List toolSessionIds)
+    {
+        this.exportData=exportData;
+        this.toolSessionIds=toolSessionIds;
+    }
+
+    /**
+     * @return Returns the exportData.
+     */
+    public String getExportData()
+    {
+        return exportData;
+    }
+    /**
+     * @return Returns the toolSessionIds.
+     */
+    public List getToolSessionIds()
+    {
+        return toolSessionIds;
+    }
+}
Index: lams_common/src/java/org/lamsfoundation/lams/tool/ToolSessionManager.java
===================================================================
diff -u
--- lams_common/src/java/org/lamsfoundation/lams/tool/ToolSessionManager.java	(revision 0)
+++ lams_common/src/java/org/lamsfoundation/lams/tool/ToolSessionManager.java	(revision 14092613cbb3d0bec8c306d5a6abdf6de151307f)
@@ -0,0 +1,36 @@
+/* ********************************************************************************
+ *  Copyright Notice
+ *  =================
+ * This file contains propriety information of LAMS Foundation. 
+ * Copying or reproduction with prior written permission is prohibited.
+ * Copyright (c) 2004 
+ * Created on 2004-12-6
+ ******************************************************************************** */
+
+package org.lamsfoundation.lams.tool;
+
+import java.util.List;
+
+
+
+/**
+ * 
+ * @author Jacky Fang 2004-12-6
+ * 
+ */
+public interface ToolSessionManager
+{
+    public void createToolSession(Long toolSessionId, Long toolContentId);
+    
+    /**
+     * Call the controller service to complete and leave the tool session.
+     * @param toolSessionId the runtime tool session id.
+     * @return the data object that wraps the progess information.
+     */
+    public ProgressOutputData leaveToolSession(Long toolSessionId);
+    
+    public ToolSessionExportOutputData exportToolSession(Long toolSessionId);
+
+    public ToolSessionExportOutputData exportToolSession(List toolSessionIds);
+    
+}
Index: lams_common/src/java/org/lamsfoundation/lams/tool/ToolSessionManagerGroupingAware.java
===================================================================
diff -u
--- lams_common/src/java/org/lamsfoundation/lams/tool/ToolSessionManagerGroupingAware.java	(revision 0)
+++ lams_common/src/java/org/lamsfoundation/lams/tool/ToolSessionManagerGroupingAware.java	(revision 14092613cbb3d0bec8c306d5a6abdf6de151307f)
@@ -0,0 +1,24 @@
+/* ********************************************************************************
+ *  Copyright Notice
+ *  =================
+ * This file contains propriety information of LAMS Foundation. 
+ * Copying or reproduction with prior written permission is prohibited.
+ * Copyright (c) 2004 
+ * Created on 2004-12-7
+ ******************************************************************************** */
+
+package org.lamsfoundation.lams.tool;
+
+
+
+/**
+ * 
+ * @author Jacky Fang 2004-12-7
+ * 
+ */
+public interface ToolSessionManagerGroupingAware extends ToolSessionManager
+{
+
+    public void joinToolSession(Long toolSessionId);
+    
+}