io.shmilyhe.convert.impl.ArrayDataAccess Maven / Gradle / Ivy

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package io.shmilyhe.convert.impl;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class ArrayDataAccess extends BaseDataAccess {

    int index=0;
    boolean withnName=false;
    private String name;
    public ArrayDataAccess(int index,boolean wn){

        this.index=index;
    }

    public ArrayDataAccess(String name){
        this.name=name;
        withnName=true;
    }


    @Override
    public boolean set(Object v, Object da) {
        if(withnName){
            if(da instanceof Map){
                ((Map)da).put(name, v);
                return true;
            }
            return false;
        }else if(da instanceof List){
            insert((List)da,index,v);
            return true;
        }
        return false;
    }

    @Override
    public Object get(Object da) {
        if(withnName){
            if(da instanceof Map){
                return  ((Map)da).get(name);
            }
            return null;
        }
        if(da instanceof List){
            List list =(List) da;
            if(list.size()>index)return list.get(index);
            return null;
        }
        return null;
    }


    private void insert(List list,int i,Object value){
        int padding=i-list.size();
        if(padding>=0){
            for(int j=0;j