com.gedaeusp.domain.TimeSeriesParser.java Source code

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Here is the source code for com.gedaeusp.domain.TimeSeriesParser.java

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/*
Copyright 2014 Antnio Miranda, Caio Valente, Igor Topcin, Jorge Melegati, Thales Paiva, Victor Santos
    
This file is part of PhysUSP.
    
PhysUSP 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.
    
PhysUSP 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 PhysUSP. If not, see <http://www.gnu.org/licenses/>.
*/

package com.gedaeusp.domain;

import java.io.BufferedReader;
import java.io.StringReader;
import java.util.LinkedHashMap;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.tuckey.web.filters.urlrewrite.utils.StringUtils;

public class TimeSeriesParser<T extends Unit> {

    private Log log = LogFactory.getLog(this.getClass());

    public LinkedHashMap<Integer, UnitValue<T>> parse(String string, T unit) {
        LinkedHashMap<Integer, UnitValue<T>> result = new LinkedHashMap<Integer, UnitValue<T>>();
        BufferedReader reader = new BufferedReader(new StringReader(string));
        String line;
        try {
            while ((line = reader.readLine()) != null) {
                if (StringUtils.isBlank(line))
                    continue;
                String[] data = line.split(",");
                if (data.length != 2)
                    continue;
                if (StringUtils.isBlank(data[0]) || "null".equals(data[0]))
                    continue;
                if (StringUtils.isBlank(data[1]) || "null".equals(data[1]))
                    continue;
                int time = Time.convertDateToSeconds(data[0]);
                result.put(time, new UnitValue<T>(Double.parseDouble(data[1]), unit));
            }
        } catch (Exception e) {
            log.error("Error reading file: ", e);
            throw new DomainException("Failed to read data points.", e);
        }
        return result;
    }

}