/**
* Copyright (C) 2011 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.analytics.financial.interestrate.bond.calculator;
import com.opengamma.analytics.financial.interestrate.InstrumentDerivativeVisitorAdapter;
import com.opengamma.analytics.financial.interestrate.bond.definition.BondCapitalIndexedSecurity;
import com.opengamma.analytics.financial.interestrate.bond.definition.BondCapitalIndexedTransaction;
import com.opengamma.analytics.financial.interestrate.bond.definition.BondFixedSecurity;
import com.opengamma.analytics.financial.interestrate.bond.definition.BondFixedTransaction;
import com.opengamma.analytics.financial.interestrate.bond.provider.BondCapitalIndexedSecurityDiscountingMethod;
import com.opengamma.analytics.financial.interestrate.bond.provider.BondSecurityDiscountingMethod;
import com.opengamma.util.ArgumentChecker;
/**
* Calculate convexity for bonds.
*/
public final class ConvexityFromYieldCalculator extends InstrumentDerivativeVisitorAdapter<Double, Double> {
/**
* The calculator instance.
*/
private static final ConvexityFromYieldCalculator s_instance = new ConvexityFromYieldCalculator();
/**
* The fixed coupon bond method.
*/
private static final BondSecurityDiscountingMethod METHOD_BOND = BondSecurityDiscountingMethod.getInstance();
private static final BondCapitalIndexedSecurityDiscountingMethod METHOD_INFLATION_BOND_SECURITY = BondCapitalIndexedSecurityDiscountingMethod.getInstance();
/**
* Return the calculator instance.
* @return The instance.
*/
public static ConvexityFromYieldCalculator getInstance() {
return s_instance;
}
/**
* Private constructor.
*/
private ConvexityFromYieldCalculator() {
}
@Override
public Double visitBondFixedSecurity(final BondFixedSecurity bond, final Double yield) {
ArgumentChecker.notNull(yield, "curves");
ArgumentChecker.notNull(bond, "yield");
return METHOD_BOND.convexityFromYield(bond, yield) / 100;
}
@Override
public Double visitBondFixedTransaction(final BondFixedTransaction bond, final Double yield) {
ArgumentChecker.notNull(yield, "curves");
ArgumentChecker.notNull(bond, "yield");
return METHOD_BOND.convexityFromYield(bond.getBondTransaction(), yield) / 100;
}
@Override
public Double visitBondCapitalIndexedTransaction(final BondCapitalIndexedTransaction<?> bond, final Double yield) {
ArgumentChecker.notNull(bond, "bond");
ArgumentChecker.notNull(yield, "yield");
ArgumentChecker.notNull(bond.getBondStandard() instanceof BondCapitalIndexedSecurity<?>, "the bond should be a BondCapitalIndexedSecurity");
final BondCapitalIndexedSecurity<?> bondSecurity = bond.getBondStandard();
return METHOD_INFLATION_BOND_SECURITY.convexityFromYieldFiniteDifference(bondSecurity, yield) / 100;
}
@Override
public Double visitBondCapitalIndexedSecurity(final BondCapitalIndexedSecurity<?> bond, final Double yield) {
ArgumentChecker.notNull(bond, "bond");
ArgumentChecker.notNull(yield, "yield");
ArgumentChecker.notNull(bond instanceof BondCapitalIndexedSecurity<?>, "the bond should be a BondCapitalIndexedSecurity");
return METHOD_INFLATION_BOND_SECURITY.convexityFromYieldFiniteDifference(bond, yield) / 100;
}
}