nz.net.orcon.kanban.tools.ComplexDateConverter.java Source code

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Here is the source code for nz.net.orcon.kanban.tools.ComplexDateConverter.java

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/**
 * GRAVITY WORKFLOW AUTOMATION
 * (C) Copyright 2015 Orcon Limited
 * 
 * This file is part of Gravity Workflow Automation.
 *
 * Gravity Workflow Automation is free software: you can redistribute it 
 * and/or modify it under the terms of the GNU General Public License as 
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * Gravity Workflow Automation is distributed in the hope that it will be 
 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *    
 * You should have received a copy of the GNU General Public License
 * along with Gravity Workflow Automation.  
 * If not, see <http://www.gnu.org/licenses/>. 
 */

package nz.net.orcon.kanban.tools;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public abstract class ComplexDateConverter {

    private static final String DAYS = "days";
    private static final String TODAY = "today";
    private static final Logger LOG = LoggerFactory.getLogger(ComplexDateConverter.class);

    public boolean matches(String formulaIn) {
        final String formula = StringUtils.remove(formulaIn, " ");
        return doMatches(formula);
    }

    public Date convert(String formulaIn) {
        final String formula = StringUtils.remove(formulaIn, " ");
        return doConvert(formula);
    }

    public abstract boolean doMatches(String formula);

    public abstract Date doConvert(String formula);

    protected Date convertToZeroTimeDate(Date dateIn) {
        try {
            final SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
            return sdf.parse(sdf.format(dateIn));
        } catch (ParseException e) {
            LOG.error(
                    "Simple Date Format exception that should not occur, dates are being created with hour, minutes and seconds that shouldn't be.",
                    e);
        }
        return new Date();
    }

    protected Integer convertToInteger(String numberString) {
        try {
            return Integer.valueOf(numberString);
        } catch (Exception e) {
            // Nothing
        }
        return null;
    }

    protected boolean containsSymbol(String formula, String symbol) {
        return StringUtils.contains(formula, symbol);
    }

    protected boolean containsDays(String formula) {
        return StringUtils.endsWithIgnoreCase(formula, DAYS);
    }

    protected boolean containsToday(String formula) {
        return StringUtils.startsWithIgnoreCase(formula, TODAY);
    }

    protected String removeToday(String stringIn) {
        return StringUtils.removeStartIgnoreCase(stringIn, TODAY);
    }

    protected String removeDays(String stringIn) {
        return StringUtils.removeEndIgnoreCase(stringIn, DAYS);
    }

    protected String removeSymbol(String stringIn, String symbol) {
        return StringUtils.remove(stringIn, symbol);
    }

}