/*
* GTRParser.java
*
* Copyright (C) 2002-2012 Alexei Drummond, Andrew Rambaut & Marc A. 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.app.beagle.evomodel.parsers;
import dr.app.beagle.evomodel.substmodel.FrequencyModel;
import dr.app.beagle.evomodel.substmodel.GTR;
import dr.inference.model.Variable;
import dr.xml.*;
/**
* @author Alexei Drummond
* @author Andrew Rambaut
*/
public class GTRParser extends AbstractXMLObjectParser {
public static final String GTR_MODEL = "gtrModel";
public static final String A_TO_C = "rateAC";
public static final String A_TO_G = "rateAG";
public static final String A_TO_T = "rateAT";
public static final String C_TO_G = "rateCG";
public static final String C_TO_T = "rateCT";
public static final String G_TO_T = "rateGT";
public static final String FREQUENCIES = "frequencies";
public String getParserName() {
return GTR_MODEL;
}
public Object parseXMLObject(XMLObject xo) throws XMLParseException {
XMLObject cxo = xo.getChild(FREQUENCIES);
FrequencyModel freqModel = (FrequencyModel) cxo.getChild(FrequencyModel.class);
Variable<Double> rateACVariable = null;
if (xo.hasChildNamed(A_TO_C)) {
rateACVariable = (Variable<Double>) xo.getElementFirstChild(A_TO_C);
}
Variable<Double> rateAGVariable = null;
if (xo.hasChildNamed(A_TO_G)) {
rateAGVariable = (Variable<Double>) xo.getElementFirstChild(A_TO_G);
}
Variable<Double> rateATVariable = null;
if (xo.hasChildNamed(A_TO_T)) {
rateATVariable = (Variable<Double>) xo.getElementFirstChild(A_TO_T);
}
Variable<Double> rateCGVariable = null;
if (xo.hasChildNamed(C_TO_G)) {
rateCGVariable = (Variable<Double>) xo.getElementFirstChild(C_TO_G);
}
Variable<Double> rateCTVariable = null;
if (xo.hasChildNamed(C_TO_T)) {
rateCTVariable = (Variable<Double>) xo.getElementFirstChild(C_TO_T);
}
Variable<Double> rateGTVariable = null;
if (xo.hasChildNamed(G_TO_T)) {
rateGTVariable = (Variable<Double>) xo.getElementFirstChild(G_TO_T);
}
int countNull = 0;
if (rateACVariable == null) countNull++;
if (rateAGVariable == null) countNull++;
if (rateATVariable == null) countNull++;
if (rateCGVariable == null) countNull++;
if (rateCTVariable == null) countNull++;
if (rateGTVariable == null) countNull++;
if (countNull != 1)
throw new XMLParseException("Only five parameters may be specified in GTR, leave exactly one out, the others will be specifed relative to the one left out.");
return new GTR(rateACVariable, rateAGVariable, rateATVariable, rateCGVariable, rateCTVariable, rateGTVariable, freqModel);
}
//************************************************************************
// AbstractXMLObjectParser implementation
//************************************************************************
public String getParserDescription() {
return "A general reversible model of nucleotide sequence substitution.";
}
public String getExample() {
return
"<!-- A general time reversible model for DNA. -->\n" +
"<!-- This element must have parameters for exactly five of the six rates -->\n" +
"<!-- The sixth rate has an implied value of 1.0 and all other rates are relative to it -->\n" +
"<!-- This example parameterizes the rate matrix relative to the A<->G transition -->\n" +
"<" + getParserName() + " id=\"gtr1\">\n" +
" <" + FREQUENCIES + "> <frequencyModel idref=\"freqs\"/> </" + FREQUENCIES + ">\n" +
" <" + A_TO_C + "> <parameter id=\"rateAC\" value=\"1.0\"/> </" + A_TO_C + ">\n" +
" <" + A_TO_T + "> <parameter id=\"rateAT\" value=\"1.0\"/> </" + A_TO_T + ">\n" +
" <" + C_TO_G + "> <parameter id=\"rateCG\" value=\"1.0\"/> </" + C_TO_G + ">\n" +
" <" + C_TO_T + "> <parameter id=\"rateCT\" value=\"1.0\"/> </" + C_TO_T + ">\n" +
" <" + G_TO_T + "> <parameter id=\"rateGT\" value=\"1.0\"/> </" + G_TO_T + ">\n" +
"</" + getParserName() + ">\n";
}
public Class getReturnType() {
return GTR.class;
}
public XMLSyntaxRule[] getSyntaxRules() {
return rules;
}
private final XMLSyntaxRule[] rules = {
new ElementRule(FREQUENCIES,
new XMLSyntaxRule[]{new ElementRule(FrequencyModel.class)}),
new ElementRule(A_TO_C,
new XMLSyntaxRule[]{new ElementRule(Variable.class)}, true),
new ElementRule(A_TO_G,
new XMLSyntaxRule[]{new ElementRule(Variable.class)}, true),
new ElementRule(A_TO_T,
new XMLSyntaxRule[]{new ElementRule(Variable.class)}, true),
new ElementRule(C_TO_G,
new XMLSyntaxRule[]{new ElementRule(Variable.class)}, true),
new ElementRule(C_TO_T,
new XMLSyntaxRule[]{new ElementRule(Variable.class)}, true),
new ElementRule(G_TO_T,
new XMLSyntaxRule[]{new ElementRule(Variable.class)}, true)
};
}