/*
* BitSwapOperatorParser.java
*
* Copyright (c) 2002-2015 Alexei Drummond, Andrew Rambaut and Marc Suchard
*
* This file is part of BEAST.
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership and licensing.
*
* BEAST is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* BEAST 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with BEAST; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
package dr.inferencexml.operators;
import dr.inference.model.Parameter;
import dr.inference.model.Statistic;
import dr.inference.operators.BitSwapOperator;
import dr.inference.operators.MCMCOperator;
import dr.inferencexml.distribution.MixedDistributionLikelihoodParser;
import dr.xml.*;
/**
*
*/
public class BitSwapOperatorParser extends AbstractXMLObjectParser {
public static final String BIT_SWAP_OPERATOR = "bitSwapOperator";
public static final String RADIUS = "radius";
private static final String DATA = MixedDistributionLikelihoodParser.DATA;
private static final String INDICATORS = MixedDistributionLikelihoodParser.INDICATORS;
public String getParserName() {
return BIT_SWAP_OPERATOR;
}
public Object parseXMLObject(XMLObject xo) throws XMLParseException {
final double weight = xo.getDoubleAttribute(MCMCOperator.WEIGHT);
Parameter data = (Parameter) ((XMLObject) xo.getChild(DATA)).getChild(Parameter.class);
Parameter indicators = (Parameter) ((XMLObject) xo.getChild(INDICATORS)).getChild(Parameter.class);
int radius = -1;
if (xo.hasAttribute(RADIUS)) {
double rd = xo.getDoubleAttribute(RADIUS);
if (rd > 0) {
if (rd < 1) {
rd = Math.round(rd * indicators.getDimension());
}
radius = (int) Math.round(rd);
if (!(radius >= 1 && radius < indicators.getDimension() - 1)) {
radius = -1;
}
}
if (radius < 1) {
throw new XMLParseException("invalid radius " + rd);
}
}
return new BitSwapOperator(data, indicators, radius, weight);
}
//************************************************************************
// AbstractXMLObjectParser implementation
//************************************************************************
public String getParserDescription() {
return "This element returns a bit-swap operator on a given parameter and data.";
}
public Class getReturnType() {
return BitSwapOperator.class;
}
public XMLSyntaxRule[] getSyntaxRules() {
return rules;
}
private final XMLSyntaxRule[] rules = {
AttributeRule.newDoubleRule(MCMCOperator.WEIGHT),
AttributeRule.newDoubleRule(RADIUS, true),
new ElementRule(DATA, new XMLSyntaxRule[]{new ElementRule(Statistic.class)}),
new ElementRule(INDICATORS, new XMLSyntaxRule[]{new ElementRule(Statistic.class)}),
};
}