/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: RoutingMetric.java
*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
*
* Electric(tm) is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Electric(tm) is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, Mass 02111-1307, USA.
*/
package com.sun.electric.tool.routing.metrics;
import java.util.Iterator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.sun.electric.database.hierarchy.Cell;
import com.sun.electric.database.network.Network;
import com.sun.electric.database.topology.ArcInst;
/**
* @author Felix Schmidt
*
*/
public abstract class RoutingMetric<T> {
private static Logger logger = LoggerFactory.getLogger(RoutingMetric.class);
public abstract T calculate(Cell cell);
protected T processNets(Cell cell, T startValue) {
T result = startValue;
boolean debug = false;
for(Iterator<Network> it = cell.getNetlist().getNetworks(); it.hasNext();) {
Network net = it.next();
if (debug)
logger.trace("process net: " + net.getName());
for(Iterator<ArcInst> arcIt = net.getArcs(); arcIt.hasNext();) {
result = reduce(result, arcIt.next(), net);
}
}
return result;
}
protected abstract T reduce(T result, ArcInst instance, Network net);
}