com.mycompany.listBoxer.services.impl.ListBoxerServiceImpl.java Source code

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Here is the source code for com.mycompany.listBoxer.services.impl.ListBoxerServiceImpl.java

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package com.mycompany.listBoxer.services.impl;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.apache.commons.lang3.StringUtils;

import com.mycompany.listBoxer.comparator.IntegerComparator;
import com.mycompany.listBoxer.dto.SelectionCriteria;
import com.mycompany.listBoxer.services.ListBoxerService;
import com.mycompany.listBoxer.utils.RangeUtils;

/**
 * 
 * @author vbobina
 */

public class ListBoxerServiceImpl implements ListBoxerService {

    private List<String> content;

    public ListBoxerServiceImpl() {
        this.content = new ArrayList<String>();
    }

    @Override
    public Boolean saveContent(String userInput) {
        if (StringUtils.isBlank(userInput)) {
            return Boolean.FALSE;
        }

        content.add(userInput);
        return Boolean.TRUE;
    }

    @Override
    public String getAll() {
        StringBuffer buffer = new StringBuffer();
        for (String item : content) {
            buffer.append(String.format("%s \n", item));
        }
        return buffer.toString();
    }

    @Override
    public List<String> getByCriteria(SelectionCriteria selCriteria) {
        /*
         * According to FilterMockitoTest
         * 
         * 1.get elements by range (first letter)
         * 
         * 2.do alphabetic/numeric (!!! move to listener) check and filter list
         * according to it
         * 
         * 3.apply assortment
         */
        List<String> rangeList = getElementsByRange(getContent(), selCriteria);

        if (selCriteria.getAsc())
            Collections.sort(rangeList, new IntegerComparator());
        else if (selCriteria.getDesc())
            Collections.sort(rangeList, Collections.reverseOrder());

        return rangeList;
    }

    @Override
    public List<String> getRangeListBySymbols(SelectionCriteria selCriteria) {
        return null;
    }

    @Override
    public Boolean clearAll() {
        content.clear();
        return Boolean.TRUE;
    }

    @Override
    public List<String> getContent() {
        return this.content;
    }

    private List<String> getElementsByRange(List<String> list, SelectionCriteria criteria) {
        List<String> result = new ArrayList<String>();
        for (String item : list) {
            if (RangeUtils.isInRange(item, criteria))
                result.add(item);
        }
        return result;
    }
}