KeyHoleSkeleton.java

package org.drip.service.json;

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

/*!
 * Copyright (C) 2020 Lakshmi Krishnamurthy
 * 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
 * 
 *  This file is part of DROP, an open-source library targeting analytics/risk, transaction cost analytics,
 *      asset liability management analytics, capital, exposure, and margin analytics, valuation adjustment
 *      analytics, and portfolio construction analytics within and across fixed income, credit, commodity,
 *      equity, FX, and structured products. It also includes auxiliary libraries for algorithm support,
 *      numerical analysis, numerical optimization, spline builder, model validation, statistical learning,
 *      and computational support.
 *  
 *      https://lakshmidrip.github.io/DROP/
 *  
 *  DROP is composed of three modules:
 *  
 *  - DROP Product Core - https://lakshmidrip.github.io/DROP-Product-Core/
 *  - DROP Portfolio Core - https://lakshmidrip.github.io/DROP-Portfolio-Core/
 *  - DROP Computational Core - https://lakshmidrip.github.io/DROP-Computational-Core/
 * 
 *  DROP Product Core implements libraries for the following:
 *  - Fixed Income Analytics
 *  - Loan Analytics
 *  - Transaction Cost Analytics
 * 
 *  DROP Portfolio Core implements libraries for the following:
 *  - Asset Allocation Analytics
 *  - Asset Liability Management Analytics
 *  - Capital Estimation Analytics
 *  - Exposure Analytics
 *  - Margin Analytics
 *  - XVA Analytics
 * 
 *  DROP Computational Core implements libraries for the following:
 *  - Algorithm Support
 *  - Computation Support
 *  - Function Analysis
 *  - Model Validation
 *  - Numerical Analysis
 *  - Numerical Optimizer
 *  - Spline Builder
 *  - Statistical Learning
 * 
 *  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>KeyHoleSkeleton</i> forwards the JSON Request to the Appropriate Processor and retrieves the Response
 * JSON.
 * 
 * <br><br>
 *  <ul>
 *      <li><b>Module </b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/ComputationalCore.md">Computational Core Module</a></li>
 *      <li><b>Library</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/ComputationSupportLibrary.md">Computation Support</a></li>
 *      <li><b>Project</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/src/main/java/org/drip/service/README.md">Environment, Product/Definition Containers, and Scenario/State Manipulation APIs</a></li>
 *      <li><b>Package</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/src/main/java/org/drip/service/json/README.md">JSON Based Valuation Request Service</a></li>
 *  </ul>
 * <br><br>
 *
 * @author Lakshmi Krishnamurthy
 */

public class KeyHoleSkeleton {

    /**
     * JSON Based in/out Generic Thunker
     * 
     * @param jsonInput JSON Request
     * 
     * @return JSON Response
     */

    public static final org.drip.json.simple.JSONObject Thunker (
        final org.drip.json.simple.JSONObject jsonInput)
    {
        if (null == jsonInput || !jsonInput.containsKey ("API") || !jsonInput.containsKey ("Parameters"))
            return null;

        java.lang.Object objAPIName = jsonInput.get ("API");

        if (!(objAPIName instanceof java.lang.String)) return null;

        java.lang.String strAPIName = (java.lang.String) objAPIName;

        org.drip.service.env.EnvManager.InitEnv ("");

        java.lang.Object objParameter = jsonInput.get ("Parameters");

        if (null == objParameter) return null;

        org.drip.json.simple.JSONObject jsonParameter = (org.drip.json.simple.JSONObject)
            org.drip.json.simple.JSONValue.parse (objParameter.toString());

        if ("DATE::ISHOLIDAY".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.DateProcessor.IsHoliday (jsonParameter);

        if ("DATE::ADDDAYS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.DateProcessor.AddDays (jsonParameter);

        if ("DATE::ADJUSTBUSINESSDAYS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.DateProcessor.AdjustBusinessDays (jsonParameter);

        if ("FUNDINGSTATE".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.LatentStateProcessor.FundingCurveThunker (jsonParameter);

        if ("CREDITSTATE".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.LatentStateProcessor.CreditCurveThunker (jsonParameter);

        if ("DEPOSIT::SECULARMETRICS".equalsIgnoreCase (strAPIName)) return null;

        if ("DEPOSIT::CURVEMETRICS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.DepositProcessor.CurveMetrics (jsonParameter);

        if ("BOND::SECULARMETRICS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.BondProcessor.SecularMetrics (jsonParameter);

        if ("BOND::CURVEMETRICS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.BondProcessor.CurveMetrics (jsonParameter);

        if ("BOND::CASHFLOWS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.BondProcessor.CashFlows (jsonParameter);

        if ("FORWARDRATEFUTURES::SECULARMETRICS".equalsIgnoreCase (strAPIName)) return null;

        if ("FORWARDRATEFUTURES::CURVEMETRICS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.ForwardRateFuturesProcessor.CurveMetrics (jsonParameter);

        if ("FIXFLOAT::SECULARMETRICS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.FixFloatProcessor.CurveMetrics (jsonParameter);

        if ("CREDITDEFAULTSWAP::SECULARMETRICS".equalsIgnoreCase (strAPIName)) return null;

        if ("CREDITDEFAULTSWAP::CURVEMETRICS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.CreditDefaultSwapProcessor.CurveMetrics (jsonParameter);

        if ("FIXEDASSETBACKED::SECULARMETRICS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.FixedAssetBackedProcessor.SecularMetrics (jsonParameter);

        if ("PORTFOLIOALLOCATION::BUDGETCONSTRAINEDMEANVARIANCE".equalsIgnoreCase (strAPIName))
            return org.drip.json.assetallocation.PortfolioConstructionProcessor.BudgetConstrainedAllocator
                (jsonParameter);

        if ("PORTFOLIOALLOCATION::RETURNSCONSTRAINEDMEANVARIANCE".equalsIgnoreCase (strAPIName))
            return org.drip.json.assetallocation.PortfolioConstructionProcessor.ReturnsConstrainedAllocator
                (jsonParameter);

        if ("PREPAYASSETBACKED::SECULARMETRICS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.PrepayAssetBackedProcessor.SecularMetrics (jsonParameter);

        if ("TREASURYBOND::SECULARMETRICS".equalsIgnoreCase (strAPIName))
            return org.drip.service.json.TreasuryBondProcessor.SecularMetrics (jsonParameter);

        if ("BLACKLITTERMAN::BAYESIANMETRICS".equalsIgnoreCase (strAPIName))
            return org.drip.json.assetallocation.BlackLittermanProcessor.Estimate (jsonParameter);

        return null;
    }

    /**
     * JSON String Based in/out Generic Thunker
     * 
     * @param strJSONRequest JSON String Request
     * 
     * @return JSON String Response
     */

    public static final java.lang.String Thunker (
        final java.lang.String strJSONRequest)
    {
        if (null == strJSONRequest || strJSONRequest.isEmpty()) return null;

        java.lang.Object objInput = org.drip.json.simple.JSONValue.parse (strJSONRequest);

        if (null == objInput || !(objInput instanceof org.drip.json.simple.JSONObject)) return null;

        org.drip.json.simple.JSONObject jsonResponse = Thunker ((org.drip.json.simple.JSONObject) objInput);

        return null == jsonResponse ? null : jsonResponse.toJSONString();
    }
}