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/**
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* Copyright (C) 2018 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.service;
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import java.util.StringTokenizer;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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/**
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* @author a.kohlbecker
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* @since Dec 14, 2018
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*
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*/
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public abstract class AbstractEllypsisFormatter<T extends CdmBase> implements EllypsisFormatter<T> {
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private static final String DELIM = " ";
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private String MORE = " \u2026";
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@Override
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public String ellypsis(T entity, String preserveString) {
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EllipsisData ed = entityEllypsis(entity, preserveString);
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String label = ed.truncated;
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return label;
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}
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protected abstract EllipsisData entityEllypsis(T entity, String filterString);
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public String stringEllypsis(String text, int maxCharsVisible, int minNumOfWords) {
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String ellipsedText = "";
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StringTokenizer tokenizer = new StringTokenizer(text, DELIM);
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int wordCount = 0;
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while(tokenizer.hasMoreElements()){
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String token = tokenizer.nextToken();
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if(ellipsedText.length() + token.length() + DELIM.length() <= maxCharsVisible || wordCount < minNumOfWords){
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ellipsedText = ellipsedText + (ellipsedText.isEmpty() ? "" : DELIM) + token;
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} else {
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break;
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}
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wordCount++;
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}
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return ellipsedText + MORE;
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}
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public String preserveString(String preserveString, String text, Pattern pattern, String textEllipsed) {
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String matchingSubstring = null;
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if(!preserveString.isEmpty()){
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Matcher m = pattern.matcher(text);
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if(m.find()){
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matchingSubstring = m.group(1);
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}
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}
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if(matchingSubstring != null && !textEllipsed.toLowerCase().contains(preserveString)){
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textEllipsed += matchingSubstring + MORE;
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}
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return textEllipsed;
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}
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static class EllipsisData {
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String original;
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String truncated;
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/**
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* @param original
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* @param truncated
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*/
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public EllipsisData(String original, String truncated) {
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super();
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this.original = original;
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this.truncated = truncated;
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}
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}
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}
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