ItemList.java

  1. package org.drip.json.simple;

  3. /*
  4.  * -*- mode: java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  5.  */

  7. /*!
  8.  * Copyright (C) 2020 Lakshmi Krishnamurthy
  9.  * Copyright (C) 2019 Lakshmi Krishnamurthy
  10.  * Copyright (C) 2018 Lakshmi Krishnamurthy
  11.  * Copyright (C) 2017 Lakshmi Krishnamurthy
  12.  * Copyright (C) 2016 Lakshmi Krishnamurthy
  13.  * Copyright (C) 2015 Lakshmi Krishnamurthy
  14.  * 
  15.  *  This file is part of DROP, an open-source library targeting analytics/risk, transaction cost analytics,
  16.  *      asset liability management analytics, capital, exposure, and margin analytics, valuation adjustment
  17.  *      analytics, and portfolio construction analytics within and across fixed income, credit, commodity,
  18.  *      equity, FX, and structured products. It also includes auxiliary libraries for algorithm support,
  19.  *      numerical analysis, numerical optimization, spline builder, model validation, statistical learning,
  20.  *      and computational support.
  21.  *  
  22.  *      https://lakshmidrip.github.io/DROP/
  23.  *  
  24.  *  DROP is composed of three modules:
  25.  *  
  26.  *  - DROP Product Core - https://lakshmidrip.github.io/DROP-Product-Core/
  27.  *  - DROP Portfolio Core - https://lakshmidrip.github.io/DROP-Portfolio-Core/
  28.  *  - DROP Computational Core - https://lakshmidrip.github.io/DROP-Computational-Core/
  29.  * 
  30.  *  DROP Product Core implements libraries for the following:
  31.  *  - Fixed Income Analytics
  32.  *  - Loan Analytics
  33.  *  - Transaction Cost Analytics
  34.  * 
  35.  *  DROP Portfolio Core implements libraries for the following:
  36.  *  - Asset Allocation Analytics
  37.  *  - Asset Liability Management Analytics
  38.  *  - Capital Estimation Analytics
  39.  *  - Exposure Analytics
  40.  *  - Margin Analytics
  41.  *  - XVA Analytics
  42.  * 
  43.  *  DROP Computational Core implements libraries for the following:
  44.  *  - Algorithm Support
  45.  *  - Computation Support
  46.  *  - Function Analysis
  47.  *  - Model Validation
  48.  *  - Numerical Analysis
  49.  *  - Numerical Optimizer
  50.  *  - Spline Builder
  51.  *  - Statistical Learning
  52.  * 
  53.  *  Documentation for DROP is Spread Over:
  54.  * 
  55.  *  - Main                     => https://lakshmidrip.github.io/DROP/
  56.  *  - Wiki                     => https://github.com/lakshmiDRIP/DROP/wiki
  57.  *  - GitHub                   => https://github.com/lakshmiDRIP/DROP
  58.  *  - Repo Layout Taxonomy     => https://github.com/lakshmiDRIP/DROP/blob/master/Taxonomy.md
  59.  *  - Javadoc                  => https://lakshmidrip.github.io/DROP/Javadoc/index.html
  60.  *  - Technical Specifications => https://github.com/lakshmiDRIP/DROP/tree/master/Docs/Internal
  61.  *  - Release Versions         => https://lakshmidrip.github.io/DROP/version.html
  62.  *  - Community Credits        => https://lakshmidrip.github.io/DROP/credits.html
  63.  *  - Issues Catalog           => https://github.com/lakshmiDRIP/DROP/issues
  64.  *  - JUnit                    => https://lakshmidrip.github.io/DROP/junit/index.html
  65.  *  - Jacoco                   => https://lakshmidrip.github.io/DROP/jacoco/index.html
  66.  * 
  67.  *  Licensed under the Apache License, Version 2.0 (the "License");
  68.  *      you may not use this file except in compliance with the License.
  69.  *   
  70.  *  You may obtain a copy of the License at
  71.  *      http://www.apache.org/licenses/LICENSE-2.0
  72.  *  
  73.  *  Unless required by applicable law or agreed to in writing, software
  74.  *      distributed under the License is distributed on an "AS IS" BASIS,
  75.  *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  76.  *  
  77.  *  See the License for the specific language governing permissions and
  78.  *      limitations under the License.
  79.  */

  81. /**
  82.  * <i>ItemList</i> is an Adaptation of the ItemList Interface from the RFC4627 compliant JSON Simple
  83.  * (https://code.google.com/p/json-simple/).
  84.  *
  85.  *      |a:b:c| = |a|,|b|,|c|
  86.  *      |:| = ||,||
  87.  *      |a:| = |a|,||
  88.  *
  89.  *  <br><br>
  90.  *  <ul>
  91.  *      <li><b>Module </b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/ComputationalCore.md">Computational Core Module</a></li>
  92.  *      <li><b>Library</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/ComputationSupportLibrary.md">Computation Support</a></li>
  93.  *      <li><b>Project</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/src/main/java/org/drip/json">RFC-4627 Compliant JSON Encoder/Decoder (Parser)</a></li>
  94.  *      <li><b>Package</b> = <a href = "https://github.com/lakshmiDRIP/DROP/tree/master/src/main/java/org/drip/json/simple">RFC4627 Compliant JSON Message Object</a></li>
  95.  *  </ul>
  96.  *
  97.  * @author Fang Yidong
  98.  * @author Lakshmi Krishnamurthy
  99.  */

  101. public class ItemList {
  102.     private String sp=",";
  103.     @SuppressWarnings ("rawtypes") java.util.List items=new java.util.ArrayList();
  104.     
  105.     
  106.     public ItemList(){}
  107.     
  108.     
  109.     public ItemList(String s){
  110.             this.split(s,sp,items);
  111.     }
  112.     
  113.     public ItemList(String s,String sp){
  114.             this.sp=s;
  115.             this.split(s,sp,items);
  116.     }
  117.     
  118.     public ItemList(String s,String sp,boolean isMultiToken){
  119.             split(s,sp,items,isMultiToken);
  120.     }
  121.     
  122.     @SuppressWarnings ("rawtypes") public java.util.List getItems(){
  123.             return this.items;
  124.     }
  125.     
  126.     public String[] getArray(){
  127.             return (String[])this.items.toArray();
  128.     }
  129.     
  130.     @SuppressWarnings ({"rawtypes", "unchecked"}) public void split(String s,String sp,java.util.List append,boolean isMultiToken){
  131.             if(s==null || sp==null)
  132.                     return;
  133.             if(isMultiToken){
  134.                 java.util.StringTokenizer tokens=new java.util.StringTokenizer(s,sp);
  135.                     while(tokens.hasMoreTokens()){
  136.                             append.add(tokens.nextToken().trim());
  137.                     }
  138.             }
  139.             else{
  140.                     this.split(s,sp,append);
  141.             }
  142.     }
  143.     
  144.     @SuppressWarnings ({"rawtypes", "unchecked"}) public void split(String s,String sp,java.util.List append){
  145.             if(s==null || sp==null)
  146.                     return;
  147.             int pos=0;
  148.             int prevPos=0;
  149.             do{
  150.                     prevPos=pos;
  151.                     pos=s.indexOf(sp,pos);
  152.                     if(pos==-1)
  153.                             break;
  154.                     append.add(s.substring(prevPos,pos).trim());
  155.                     pos+=sp.length();
  156.             }while(pos!=-1);
  157.             append.add(s.substring(prevPos).trim());
  158.     }
  159.     
  160.     public void setSP(String sp){
  161.             this.sp=sp;
  162.     }
  163.     
  164.     @SuppressWarnings ("unchecked") public void add(int i,String item){
  165.             if(item==null)
  166.                     return;
  167.             items.add(i,item.trim());
  168.     }

  170.     @SuppressWarnings ("unchecked") public void add(String item){
  171.             if(item==null)
  172.                     return;
  173.             items.add(item.trim());
  174.     }
  175.     
  176.     @SuppressWarnings ("unchecked") public void addAll(ItemList list){
  177.             items.addAll(list.items);
  178.     }
  179.     
  180.     public void addAll(String s){
  181.             this.split(s,sp,items);
  182.     }
  183.     
  184.     public void addAll(String s,String sp){
  185.             this.split(s,sp,items);
  186.     }
  187.     
  188.     public void addAll(String s,String sp,boolean isMultiToken){
  189.             this.split(s,sp,items,isMultiToken);
  190.     }
  191.     
  192.     /**
  193.      * @param i 0-based
  194.      * @return i
  195.      */
  196.     public String get(int i){
  197.             return (String)items.get(i);
  198.     }
  199.     
  200.     public int size(){
  201.             return items.size();
  202.     }

  204.     public String toString(){
  205.             return toString(sp);
  206.     }
  207.     
  208.     public String toString(String sp){
  209.             StringBuffer sb=new StringBuffer();
  210.             
  211.             for(int i=0;i<items.size();i++){
  212.                     if(i==0)
  213.                             sb.append(items.get(i));
  214.                     else{
  215.                             sb.append(sp);
  216.                             sb.append(items.get(i));
  217.                     }
  218.             }
  219.             return sb.toString();

  221.     }
  222.     
  223.     public void clear(){
  224.             items.clear();
  225.     }
  226.     
  227.     public void reset(){
  228.             sp=",";
  229.             items.clear();
  230.     }
  231. }
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