/****************************************************************************************************************************

Licensed Materials - Property of IBM 
BI and PM: QFW 
© Copyright IBM Corp. 2005, 2010 
US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. 

*****************************************************************************************************************************/


function C_QanExecPlan( oLogDoc )
{
	this.m_oLogDoc = oLogDoc;
	this.m_aAllTreeNodesByName = [];
	this.m_aAllTreeNodesByID = [];
	this.m_iNodeIdGen = 1;

};

C_QanExecPlan.prototype.F_Init = function()
{
	if (!this.m_oLogDoc)
	   this.m_aPlanRoots = this.f_initSubtree( null );
	else
	{
		var v_nRootSubtreeNode = this.m_oLogDoc.F_GetAsXMLDoc().documentElement;

		var v_nCoordinationPlannerMainCall = 
			v_nRootSubtreeNode.selectSingleNode( "QFSSession/QFSQuery[@_provider='CoordinationPlanner']" );

		if( !v_nCoordinationPlannerMainCall )
			return;
		
		this.m_aPlanRoots = this.f_initSubtree( v_nCoordinationPlannerMainCall );
	}
};

C_QanExecPlan.prototype.F_GetLogDoc = function()
{
	return this.m_oLogDoc;
}



C_QanExecPlan.prototype.f_execCommandCondition = function()
{
	return "@method='QueryExecute1' or @method='QueryExecute2' or @method='QueryValidate1' or @method='QueryValidate2'";
}


C_QanExecPlan.prototype.f_initSubtree = function( nSubtreeNode, oNestingParentPlanNode )
{
	if (nSubtreeNode)
	{
		var v_nlExecutionMethods = 
			nSubtreeNode.selectNodes( "QFSQuery["+ this.f_execCommandCondition()+ "]" );

		if( v_nlExecutionMethods.length == 0 )
			return;  

		var v_nlFullExecPlanMethod = v_nlExecutionMethods[v_nlExecutionMethods.length - 1];
		
		var v_nlProviderQueries = 
			v_nlFullExecPlanMethod.selectNodes( "parm[@type='input']/*/querySet/queries/providerQuery" );
		
		var v_aRootPlanNodes = this.f_createExecutionPlan( v_nlProviderQueries, null, oNestingParentPlanNode );

		for( var i = 0; i < v_nlExecutionMethods.length; ++i )
		{
			var v_nOutmostOperation = 
				v_nlExecutionMethods[i].selectSingleNode("parm[@type='input']/*/querySet/queries/providerQuery");
			if( !v_nOutmostOperation )
				continue;
				
			var v_sOutmostOperationName = v_nOutmostOperation.getAttribute("name");
			
			var v_oPlanNode = this.m_aAllTreeNodesByName[ v_sOutmostOperationName ];
			if( !v_oPlanNode )
				continue;
		
			var v_nQueryFeedbackResult =
				v_nlExecutionMethods[i].selectSingleNode("parm[@type='output']/response/queryFeedbackResult");
				
			v_oPlanNode.F_SetQueryFeedback( v_nQueryFeedbackResult );
		
			var v_nNestedNodeTree = 
				v_nlExecutionMethods[i].selectSingleNode("QFSQuery[@_provider='CoordinationPlanner']");
			
			if( !v_nNestedNodeTree )
				continue;
			
			this.f_initSubtree( v_nNestedNodeTree, v_oPlanNode );
		}
	}
	return v_aRootPlanNodes;
};



C_QanExecPlan.prototype.f_createExecutionPlan = function( nlProviderQueries, oParentPlanNode, oNestedCallsParentPlanNode )
{
	var v_aPlanNodes = [];

	for( var i = 0; i < nlProviderQueries.length; ++i )
	{
		v_oPlanNode = new C_QanExecPlanNode( this.m_iNodeIdGen, nlProviderQueries[i], oParentPlanNode, oNestedCallsParentPlanNode );
		v_aPlanNodes.push( v_oPlanNode );

		this.m_aAllTreeNodesByName[ v_oPlanNode.F_GetName() ] = v_oPlanNode;
		this.m_aAllTreeNodesByID[ this.m_iNodeIdGen ] = v_oPlanNode;
		this.m_iNodeIdGen++;
				
		var v_nlChildProviderQueries = nlProviderQueries[i].selectNodes( "source/querySet/queries/providerQuery|source/providerQuery" );
		this.f_createExecutionPlan( v_nlChildProviderQueries, v_oPlanNode, oNestedCallsParentPlanNode );		
	}
	
	return v_aPlanNodes;
}


C_QanExecPlan.prototype.F_GetPlanRootNodes = function()
{
	return this.m_aPlanRoots;
}

C_QanExecPlan.prototype.F_GetPlanNodeByID = function( iID )
{
	return this.m_aAllTreeNodesByID[iID];
}