/**
 * (C) Copyright IBM Corp. 2010, 2015
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package com.ibm.bi.dml.hops.recompile;

import java.util.ArrayList;
import java.util.HashMap;

import com.ibm.bi.dml.parser.VariableSet;
import com.ibm.bi.dml.runtime.matrix.MatrixCharacteristics;

public class RecompileStatus 
{
	
	private HashMap<String, MatrixCharacteristics> _lastTWrites = null; 
	
	public RecompileStatus()
	{
		_lastTWrites = new HashMap<String,MatrixCharacteristics>();
	}
	
	public HashMap<String, MatrixCharacteristics> getTWriteStats()
	{
		return _lastTWrites;
	}
	
	public void clearStatus()
	{
		_lastTWrites.clear();
	}
	
	public void clearStatus(VariableSet vars)
	{
		ArrayList<String> lvars = new ArrayList<String>(vars.getVariableNames());
		for( String var : lvars ) {
			_lastTWrites.remove(var);
		}
	}
	
	@Override
	public Object clone()
	{
		RecompileStatus ret = new RecompileStatus();
		ret._lastTWrites.putAll(this._lastTWrites);
		return ret;
	}
}