TemplatedFundingCurveBuilder.java

package org.drip.sample.funding;

import org.drip.analytics.date.*;
import org.drip.analytics.support.*;
import org.drip.market.otc.*;
import org.drip.numerical.common.FormatUtil;
import org.drip.param.creator.*;
import org.drip.param.period.*;
import org.drip.param.valuation.*;
import org.drip.product.definition.*;
import org.drip.product.rates.*;
import org.drip.service.env.EnvManager;
import org.drip.state.creator.ScenarioDiscountCurveBuilder;
import org.drip.state.discount.MergedDiscountForwardCurve;
import org.drip.state.identifier.ForwardLabel;

/*
 * -*- mode: java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 */

/*!
 * Copyright (C) 2019 Lakshmi Krishnamurthy
 * Copyright (C) 2018 Lakshmi Krishnamurthy
 * Copyright (C) 2017 Lakshmi Krishnamurthy
 * Copyright (C) 2016 Lakshmi Krishnamurthy
 * Copyright (C) 2015 Lakshmi Krishnamurthy
 * Copyright (C) 2014 Lakshmi Krishnamurthy
 * Copyright (C) 2013 Lakshmi Krishnamurthy
 * 
 *  This file is part of DROP, an open-source library targeting risk, transaction costs, exposure, margin
 *  	calculations, valuation adjustment, and portfolio construction within and across fixed income,
 *  	credit, commodity, equity, FX, and structured products.
 *  
 *  	https://lakshmidrip.github.io/DROP/
 *  
 *  DROP is composed of three modules:
 *  
 *  - DROP Analytics Core - https://lakshmidrip.github.io/DROP-Analytics-Core/
 *  - DROP Portfolio Core - https://lakshmidrip.github.io/DROP-Portfolio-Core/
 *  - DROP Numerical Core - https://lakshmidrip.github.io/DROP-Numerical-Core/
 * 
 * 	DROP Analytics Core implements libraries for the following:
 * 	- Fixed Income Analytics
 * 	- Asset Backed Analytics
 * 	- XVA Analytics
 * 	- Exposure and Margin Analytics
 * 
 * 	DROP Portfolio Core implements libraries for the following:
 * 	- Asset Allocation Analytics
 * 	- Transaction Cost Analytics
 * 
 * 	DROP Numerical Core implements libraries for the following:
 * 	- Statistical Learning
 * 	- Numerical Optimizer
 * 	- Spline Builder
 * 	- Algorithm Support
 * 
 * 	Documentation for DROP is Spread Over:
 * 
 * 	- Main                     => https://lakshmidrip.github.io/DROP/
 * 	- Wiki                     => https://github.com/lakshmiDRIP/DROP/wiki
 * 	- GitHub                   => https://github.com/lakshmiDRIP/DROP
 * 	- Repo Layout Taxonomy     => https://github.com/lakshmiDRIP/DROP/blob/master/Taxonomy.md
 * 	- Javadoc                  => https://lakshmidrip.github.io/DROP/Javadoc/index.html
 * 	- Technical Specifications => https://github.com/lakshmiDRIP/DROP/tree/master/Docs/Internal
 * 	- Release Versions         => https://lakshmidrip.github.io/DROP/version.html
 * 	- Community Credits        => https://lakshmidrip.github.io/DROP/credits.html
 * 	- Issues Catalog           => https://github.com/lakshmiDRIP/DROP/issues
 * 	- JUnit                    => https://lakshmidrip.github.io/DROP/junit/index.html
 * 	- Jacoco                   => https://lakshmidrip.github.io/DROP/jacoco/index.html
 * 
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *   	you may not use this file except in compliance with the License.
 *   
 *  You may obtain a copy of the License at
 *  	http://www.apache.org/licenses/LICENSE-2.0
 *  
 *  Unless required by applicable law or agreed to in writing, software
 *  	distributed under the License is distributed on an "AS IS" BASIS,
 *  	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  
 *  See the License for the specific language governing permissions and
 *  	limitations under the License.
 */

/**
 * <i>TemplatedFundingCurveBuilder</i> sample demonstrates the usage of the different pre-built Funding Curve
 * Builders. It shows the following:
 *  
 * <br><br>
 *  <ul>
 *  	<li>
 * 			Construct the Array of Cash Instruments and their Quotes from the given set of parameters.
 *  	</li>
 *  	<li>
 * 			Construct the Array of Swap Instruments and their Quotes from the given set of parameters.
 *  	</li>
 *  	<li>
 * 			Construct the Cubic Tension KLK Hyperbolic Discount Factor Shape Preserver.
 *  	</li>
 *  	<li>
 * 			Construct the Cubic Tension KLK Hyperbolic Discount Factor Shape Preserver with Zero Rate
 * 				Smoothening applied.
 *  	</li>
 *  	<li>
 * 			Construct the Cubic Polynomial Discount Factor Shape Preserver.
 *  	</li>
 *  	<li>
 * 			Construct the Cubic Polynomial Discount Factor Shape Preserver with Zero Rate Smoothening
 * 				applied.
 *  	</li>
 *  	<li>
 * 			Construct the Discount Curve using the Bear Sterns' DENSE Methodology.
 *  	</li>
 *  	<li>
 * 			Construct the Discount Curve using the Bear Sterns' DUALDENSE Methodology.
 *  	</li>
 *  	<li>
 * 			Cross-Comparison of the Cash Calibration Instrument "Rate" metric across the different curve
 * 				construction methodologies.
 *  	</li>
 *  	<li>
 * 			Cross-Comparison of the Swap Calibration Instrument "Rate" metric across the different curve
 * 				construction methodologies.
 *  	</li>
 *  	<li>
 * 			Cross-Comparison of the generated Discount Factor across the different curve construction
 * 				Methodologies for different node points.
 *  	</li>
 *  </ul>
 *  
 * <br><br>
 *  <ul>
 *		<li><b>Module </b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/AnalyticsCore.md">Analytics Core Module</a></li>
 *		<li><b>Library</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/FixedIncomeAnalyticsLibrary.md">Fixed Income Analytics Library</a></li>
 *		<li><b>Project</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/src/main/java/org/drip/sample/README.md">Sample</a></li>
 *		<li><b>Package</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/src/main/java/org/drip/sample/funding/README.md">Funding Curve Builder</a></li>
 *  </ul>
 * <br><br>
 * 
 * @author Lakshmi Krishnamurthy
 */

public class TemplatedFundingCurveBuilder {

	private static final FixFloatComponent OTCIRS (
		final JulianDate dtSpot,
		final String strCurrency,
		final String strMaturityTenor,
		final double dblCoupon)
	{
		FixedFloatSwapConvention ffConv = IBORFixedFloatContainer.ConventionFromJurisdiction (
			strCurrency,
			"ALL",
			strMaturityTenor,
			"MAIN"
		);

		return ffConv.createFixFloatComponent (
			dtSpot,
			strMaturityTenor,
			dblCoupon,
			0.,
			1.
		);
	}

	/*
	 * Construct the Array of Deposit Instruments from the given set of parameters
	 * 
	 *  	USE WITH CARE: This sample ignores errors and does not handle exceptions.
	 */

	private static final SingleStreamComponent[] DepositInstrumentsFromMaturityDays (
		final JulianDate dtEffective,
		final String strCurrency,
		final int[] aiDay)
		throws Exception
	{
		SingleStreamComponent[] aDeposit = new SingleStreamComponent[aiDay.length];

		ComposableFloatingUnitSetting cfus = new ComposableFloatingUnitSetting (
			"3M",
			CompositePeriodBuilder.EDGE_DATE_SEQUENCE_SINGLE,
			null,
			ForwardLabel.Create (
				strCurrency,
				"3M"
			),
			CompositePeriodBuilder.REFERENCE_PERIOD_IN_ADVANCE,
			0.
		);

		CompositePeriodSetting cps = new CompositePeriodSetting (
			4,
			"3M",
			strCurrency,
			null,
			1.,
			null,
			null,
			null,
			null
		);

		CashSettleParams csp = new CashSettleParams (
			0,
			strCurrency,
			0
		);

		for (int i = 0; i < aiDay.length; ++i) {
			aDeposit[i] = new SingleStreamComponent (
				"DEPOSIT_" + aiDay[i],
				new Stream (
					CompositePeriodBuilder.FloatingCompositeUnit (
						CompositePeriodBuilder.EdgePair (
							dtEffective,
							dtEffective.addBusDays (
								aiDay[i],
								strCurrency
							)
						),
						cps,
						cfus
					)
				),
				csp
			);

			aDeposit[i].setPrimaryCode (aiDay[i] + "D");
		}

		return aDeposit;
	}

	/*
	 * Construct the Array of Swap Instruments from the given set of parameters
	 * 
	 *  	USE WITH CARE: This sample ignores errors and does not handle exceptions.
	 */

	private static final FixFloatComponent[] SwapInstrumentsFromMaturityTenor (
		final JulianDate dtSpot,
		final String strCurrency,
		final String[] astrMaturityTenor)
		throws Exception
	{
		FixFloatComponent[] aIRS = new FixFloatComponent[astrMaturityTenor.length];

		for (int i = 0; i < astrMaturityTenor.length; ++i) {
			FixFloatComponent irs = OTCIRS (
				dtSpot,
				strCurrency,
				astrMaturityTenor[i],
				0.
			);

			irs.setPrimaryCode ("IRS." + astrMaturityTenor[i] + "." + strCurrency);

			aIRS[i] = irs;
		}

		return aIRS;
	}

	/*
	 * Compute the desired component Metric
	 * 
	 *  	USE WITH CARE: This sample ignores errors and does not handle exceptions.
	 */

	private static final double ComponentMetric (
		final Component comp,
		final ValuationParams valParams,
		final MergedDiscountForwardCurve dc,
		final String strMeasure)
		throws Exception
	{
		return comp.measureValue (
			valParams,
			null,
			MarketParamsBuilder.Create (
				dc,
				null,
				null,
				null,
				null,
				null,
				null
			),
			null,
			strMeasure
		);
	}

	/*
	 * This sample demonstrates the usage of the different pre-built Discount Curve Builders. It shows the
	 * 	following:
	 * 	- Construct the Array of Cash Instruments and their Quotes from the given set of parameters.
	 * 	- Construct the Array of Swap Instruments and their Quotes from the given set of parameters.
	 * 	- Construct the Cubic Tension KLK Hyperbolic Discount Factor Shape Preserver.
	 * 	- Construct the Cubic Tension KLK Hyperbolic Discount Factor Shape Preserver with Zero Rate
	 * 		Smoothening applied.
	 * 	- Construct the Cubic Polynomial Discount Factor Shape Preserver.
	 * 	- Construct the Cubic Polynomial Discount Factor Shape Preserver with Zero Rate Smoothening applied.
	 * 	- Construct the Discount Curve using the Bear Sterns' DENSE Methodology.
	 * 	- Construct the Discount Curve using the Bear Sterns' DUALDENSE Methodology.
	 * 	- Cross-Comparison of the Cash Calibration Instrument "Rate" metric across the different curve
	 * 		construction methodologies.
	 * 	- Cross-Comparison of the Swap Calibration Instrument "Rate" metric across the different curve
	 * 		construction methodologies.
	 * 	- Cross-Comparison of the generated Discount Factor across the different curve construction
	 * 		Methodologies for different node points.
	 * 
	 *  	USE WITH CARE: This sample ignores errors and does not handle exceptions.
	 */

	public static final void TemplatedDiscountCurveBuilderSample (
		final JulianDate dtSpot,
		final String strCurrency)
		throws Exception
	{
		ValuationParams valParams = new ValuationParams (
			dtSpot,
			dtSpot,
			strCurrency
		);

		/*
		 * Construct the Array of Deposit Instruments and their Quotes from the given set of parameters
		 */

		SingleStreamComponent[] aDepositComp = DepositInstrumentsFromMaturityDays (
			dtSpot,
			strCurrency,
			new int[] {
				2, 7, 14, 30, 60, 90, 180, 270, 360, 450, 540, 630, 720
			}
		);

		double[] adblDepositQuote = new double[] {
			0.0017, 0.0017, 0.0018, 0.0020, 0.0023, 0.0027, 0.0032, 0.0041, 0.0054, 0.0077, 0.0104, 0.0134, 0.0160
		};

		String[] astrDepositManifestMeasure = new String[] {
			"ForwardRate",
			"ForwardRate",
			"ForwardRate",
			"ForwardRate",
			"ForwardRate",
			"ForwardRate",
			"ForwardRate",
			"ForwardRate",
			"ForwardRate",
			"ForwardRate",
			"ForwardRate",
			"ForwardRate",
			"ForwardRate"
		};

		/*
		 * Construct the Array of Swap Instruments and their Quotes from the given set of parameters
		 */

		FixFloatComponent[] aSwapComp = SwapInstrumentsFromMaturityTenor (
			dtSpot,
			strCurrency,
			new java.lang.String[] {
				"4Y", "5Y", "6Y", "7Y", "8Y", "9Y", "10Y", "11Y", "12Y", "15Y", "20Y", "25Y", "30Y", "40Y", "50Y"
			}
		);

		double[] adblSwapQuote = new double[] {
			0.0166, 0.0206, 0.0241, 0.0269, 0.0292, 0.0311, 0.0326, 0.0340, 0.0351, 0.0375, 0.0393, 0.0402, 0.0407, 0.0409, 0.0409
		};

		String[] astrSwapManifestMeasure = new String[] {
			"SwapRate", "SwapRate", "SwapRate", "SwapRate", "SwapRate", "SwapRate", "SwapRate", "SwapRate", "SwapRate", "SwapRate", "SwapRate", "SwapRate", "SwapRate", "SwapRate", "SwapRate"
		};

		/*
		 * Construct the Cubic Tension KLK Hyperbolic Discount Factor Shape Preserver
		 */

		MergedDiscountForwardCurve dcKLKHyperbolicShapePreserver = ScenarioDiscountCurveBuilder.CubicKLKHyperbolicDFRateShapePreserver (
			"KLK_HYPERBOLIC_SHAPE_TEMPLATE",
			valParams,
			aDepositComp,
			adblDepositQuote,
			astrDepositManifestMeasure,
			aSwapComp,
			adblSwapQuote,
			astrSwapManifestMeasure,
			false
		);

		/*
		 * Construct the Cubic Tension KLK Hyperbolic Discount Factor Shape Preserver with Zero Rate
		 * 	Smoothening applied
		 */

		MergedDiscountForwardCurve dcKLKHyperbolicSmoother = ScenarioDiscountCurveBuilder.CubicKLKHyperbolicDFRateShapePreserver (
			"KLK_HYPERBOLIC_SMOOTH_TEMPLATE",
			valParams,
			aDepositComp,
			adblDepositQuote,
			astrDepositManifestMeasure,
			aSwapComp,
			adblSwapQuote,
			astrSwapManifestMeasure,
			true
		);

		/*
		 * Construct the Cubic Polynomial Discount Factor Shape Preserver
		 */

		MergedDiscountForwardCurve dcCubicPolyShapePreserver = ScenarioDiscountCurveBuilder.CubicPolyDFRateShapePreserver (
			"CUBIC_POLY_SHAPE_TEMPLATE",
			valParams,
			aDepositComp,
			adblDepositQuote,
			astrDepositManifestMeasure,
			aSwapComp,
			adblSwapQuote,
			astrSwapManifestMeasure,
			false
		);

		/*
		 * Construct the Cubic Polynomial Discount Factor Shape Preserver with Zero Rate Smoothening applied.
		 */

		MergedDiscountForwardCurve dcCubicPolySmoother = ScenarioDiscountCurveBuilder.CubicPolyDFRateShapePreserver (
			"CUBIC_POLY_SMOOTH_TEMPLATE",
			valParams,
			aDepositComp,
			adblDepositQuote,
			astrDepositManifestMeasure,
			aSwapComp,
			adblSwapQuote,
			astrSwapManifestMeasure,
			true
		);

		/*
		 * Construct the Discount Curve using the Bear Sterns' DENSE Methodology.
		 */

		MergedDiscountForwardCurve dcDENSE = ScenarioDiscountCurveBuilder.DENSE (
			"DENSE",
			valParams,
			aDepositComp,
			adblDepositQuote,
			astrDepositManifestMeasure,
			aSwapComp,
			adblSwapQuote,
			astrSwapManifestMeasure,
			null
		);

		/*
		 * Construct the Discount Curve using the Bear Sterns' DUAL DENSE Methodology.
		 */

		MergedDiscountForwardCurve dcDualDENSE = ScenarioDiscountCurveBuilder.DUALDENSE (
			"DENSE",
			valParams,
			aDepositComp,
			adblDepositQuote,
			"1M",
			astrDepositManifestMeasure,
			aSwapComp,
			adblSwapQuote,
			"3M",
			astrSwapManifestMeasure,
			null
		);

		/*
		 * Cross-Comparison of the Deposit Calibration Instrument "Rate" metric across the different curve
		 * 	construction methodologies.
		 */

		System.out.println ("\n\t---------------------------------------------------------------------------------------------------------------------------------------");

		System.out.println ("\t\t\t\t\t\t\tDEPOSIT INSTRUMENTS CALIBRATION RECOVERY");

		System.out.println ("\t---------------------------------------------------------------------------------------------------------------------------------------");

		System.out.println ("\t   MATURITY  | KLK HYPER SHAPE | KLK HYPER SMOTH | CUBE POLY SHAPE | CUBE POLY SMOTH |      DENSE      |   DUAL  DENSE   |      INPUT");

		System.out.println ("\t---------------------------------------------------------------------------------------------------------------------------------------");

		for (int i = 0; i < aDepositComp.length; ++i)
			System.out.println ("\t[" + aDepositComp[i].maturityDate() + "] =    " +
				FormatUtil.FormatDouble (ComponentMetric (aDepositComp[i], valParams, dcKLKHyperbolicShapePreserver, "Rate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (ComponentMetric (aDepositComp[i], valParams, dcKLKHyperbolicSmoother, "Rate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (ComponentMetric (aDepositComp[i], valParams, dcCubicPolyShapePreserver, "Rate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (ComponentMetric (aDepositComp[i], valParams, dcCubicPolySmoother, "Rate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (ComponentMetric (aDepositComp[i], valParams, dcDENSE, "Rate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (ComponentMetric (aDepositComp[i], valParams, dcDualDENSE, "Rate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (adblDepositQuote[i], 1, 6, 1.)
			);

		/*
		 * Cross-Comparison of the Swap Calibration Instrument "Rate" metric across the different curve
		 * 	construction methodologies.
		 */

		System.out.println ("\n\t---------------------------------------------------------------------------------------------------------------------------------------");

		System.out.println ("\t\t\t\t\t\t\tSWAP INSTRUMENTS CALIBRATION RECOVERY");

		System.out.println ("\t---------------------------------------------------------------------------------------------------------------------------------------");

		System.out.println ("\t   MATURITY  | KLK HYPER SHAPE | KLK HYPER SMOTH | CUBE POLY SHAPE | CUBE POLY SMOTH |      DENSE      |   DUAL  DENSE   |      INPUT");

		System.out.println ("\t---------------------------------------------------------------------------------------------------------------------------------------");

		for (int i = 0; i < aSwapComp.length; ++i)
			System.out.println ("\t[" + aSwapComp[i].maturityDate() + "] =    " +
				FormatUtil.FormatDouble (ComponentMetric (aSwapComp[i], valParams, dcKLKHyperbolicShapePreserver, "CalibSwapRate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (ComponentMetric (aSwapComp[i], valParams, dcKLKHyperbolicSmoother, "CalibSwapRate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (ComponentMetric (aSwapComp[i], valParams, dcCubicPolyShapePreserver, "CalibSwapRate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (ComponentMetric (aSwapComp[i], valParams, dcCubicPolySmoother, "CalibSwapRate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (ComponentMetric (aSwapComp[i], valParams, dcDENSE, "CalibSwapRate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (ComponentMetric (aSwapComp[i], valParams, dcDualDENSE, "CalibSwapRate"), 1, 6, 1.) + "    |    " +
				FormatUtil.FormatDouble (adblSwapQuote[i], 1, 6, 1.)
			);

		/*
		 * Cross-Comparison of the generated Discount Factor across the different curve construction
		 * 	methodologies for different node points.
		 */

		System.out.println ("\n\t-----------------------------------------------------------------------------------------------------------------------------------");

		System.out.println ("\t      DF     |   KLK HYPER SHAPE |  KLK HYPER SMOTH  |  CUBE POLY SHAPE  |  CUBE POLY SMOTH  |       DENSE       |     DUAL DENSE    ");

		System.out.println ("\t-----------------------------------------------------------------------------------------------------------------------------------");

		int iStartDate = aDepositComp[0].maturityDate().julian();

		int iEndDate = aSwapComp[aSwapComp.length - 1].maturityDate().julian();

		int iDateIncrement = (iEndDate - iStartDate) / 20;

		for (int iDate = iStartDate; iDate <= iEndDate; iDate += iDateIncrement) {
			System.out.println ("\t[" + new JulianDate (iDate) + "] =    " +
				FormatUtil.FormatDouble (dcKLKHyperbolicShapePreserver.df (iDate), 1, 8, 1.) + "    |    " +
				FormatUtil.FormatDouble (dcKLKHyperbolicSmoother.df (iDate), 1, 8, 1.) + "    |    " +
				FormatUtil.FormatDouble (dcCubicPolyShapePreserver.df (iDate), 1, 8, 1.) + "    |    " +
				FormatUtil.FormatDouble (dcCubicPolySmoother.df (iDate), 1, 8, 1.) + "    |    " +
				FormatUtil.FormatDouble (dcDENSE.df (iDate), 1, 8, 1.) + "    |    " +
				FormatUtil.FormatDouble (dcDualDENSE.df (iDate), 1, 8, 1.)
			);
		}
	}

	public static final void main (
		final String[] astrArgs)
		throws Exception
	{
		/*
		 * Initialize the Credit Analytics Library
		 */

		EnvManager.InitEnv ("");

		String strCurrency = "EUR";

		JulianDate dtToday = DateUtil.Today().addTenorAndAdjust (
			"0D",
			strCurrency
		);

		TemplatedDiscountCurveBuilderSample (
			dtToday,
			strCurrency
		);

		EnvManager.TerminateEnv();
	}
}