br.com.objectos.jabuticava.debs.DataParser.java Source code

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Here is the source code for br.com.objectos.jabuticava.debs.DataParser.java

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/*
 * Copyright 2013 Objectos, Fbrica de Software LTDA.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package br.com.objectos.jabuticava.debs;

import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import br.com.objectos.comuns.io.csv.LocalDateCsvConverter;

import com.google.common.base.Strings;
import com.google.common.io.CharSource;

import org.joda.time.LocalDate;

/**
 * @author marcio.endo@objectos.com.br (Marcio Endo)
 */
class DataParser {

    private static final Pattern REGEX = Pattern.compile("([0-9]{2}/[0-9]{2}/[0-9]{4})");

    private final String text;

    public DataParser(String text) {
        this.text = text;
    }

    public LocalDate get() {
        LocalDate res = null;

        try {
            CharSource charSource = CharSource.wrap(text);
            String line = charSource.readFirstLine();
            line = Strings.nullToEmpty(line);
            Matcher matcher = REGEX.matcher(line);
            if (matcher.find()) {
                String data = matcher.group(0);
                res = new LocalDateCsvConverter("dd/MM/yyyy").convert(data);
            }
        } catch (IOException e) {
        }

        return res;
    }

}