package dr.inferencexml.operators;
import dr.inference.operators.GibbsOperator;
import dr.inference.operators.JointGibbsOperator;
import dr.inference.operators.SimpleMCMCOperator;
import dr.xml.*;
/**
* @author Max Tolkoff
*/
public class JointGibbsOperatorParser extends AbstractXMLObjectParser {
public static final String JOINT_GIBBS_OPERATOR = "jointGibbsOperator";
public static final String WEIGHT = "weight";
public static final String TARGET_ACCEPTANCE = "targetAcceptance";
public String getParserName() {
return JOINT_GIBBS_OPERATOR;
}
public Object parseXMLObject(XMLObject xo) throws XMLParseException {
final double weight = xo.getDoubleAttribute(WEIGHT);
JointGibbsOperator operator = new JointGibbsOperator(weight);
for (int i = 0; i < xo.getChildCount(); i++) {
if (xo.getChild(i) instanceof GibbsOperator)
operator.addOperator((SimpleMCMCOperator) xo.getChild(i));
else
throw new RuntimeException("Operator list must consist only of GibbsOperators");
}
return operator;
}
//************************************************************************
// AbstractXMLObjectParser implementation
//************************************************************************
public String getParserDescription() {
return "This element represents a list of Gibbs Operators";
}
public Class getReturnType() {
return JointGibbsOperator.class;
}
public XMLSyntaxRule[] getSyntaxRules() {
return rules;
}
private final XMLSyntaxRule[] rules = {
new ElementRule(SimpleMCMCOperator.class, 1, Integer.MAX_VALUE),
AttributeRule.newDoubleRule(WEIGHT),
AttributeRule.newDoubleRule(TARGET_ACCEPTANCE, true)
};
}