/*
* JGrass - Free Open Source Java GIS http://www.jgrass.org
* (C) HydroloGIS - www.hydrologis.com
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Library General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option) any
* later version.
*
* This library 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 Library General Public License for more
* details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; if not, write to the Free Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.jgrasstools.hortonmachine.modules.networktools.trento_p.utils;
import static org.jgrasstools.gears.libs.modules.JGTConstants.doubleNovalue;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import oms3.annotations.Author;
import oms3.annotations.Description;
import oms3.annotations.Execute;
import oms3.annotations.Finalize;
import oms3.annotations.In;
import oms3.annotations.Keywords;
import oms3.annotations.Label;
import oms3.annotations.License;
import oms3.annotations.Out;
import oms3.annotations.Role;
import oms3.annotations.Status;
import oms3.annotations.UI;
import org.jgrasstools.gears.libs.modules.JGTConstants;
import org.jgrasstools.gears.libs.modules.JGTModel;
import org.jgrasstools.gears.libs.monitor.IJGTProgressMonitor;
import org.jgrasstools.gears.libs.monitor.LogProgressMonitor;
@Description("Utility class for reading data from csv file that have the form: id1 value1[] id2 value2[] ... idn valuen[].")
@Author(name = "Andrea Antonello", contact = "www.hydrologis.com")
@Keywords("IO, Reading")
@Label(JGTConstants.HASHMAP_READER)
@UI(JGTConstants.HIDE_UI_HINT)
@Status(Status.EXPERIMENTAL)
@License("http://www.gnu.org/licenses/gpl-3.0.html")
public class DiametersReader extends JGTModel {
@Description("The csv file to read from.")
@UI(JGTConstants.FILEIN_UI_HINT)
@In
public String file = null;
@Role(Role.PARAMETER)
@Description("The number of columns of the array.")
@In
public int pCols = -1;
@Role(Role.PARAMETER)
@Description("The csv separator.")
@In
public String pSeparator = ",";
@Role(Role.PARAMETER)
@Description("The file novalue.")
@In
public String fileNovalue = "-9999.0";
@Description("The progress monitor.")
@In
public IJGTProgressMonitor pm = new LogProgressMonitor();
@Description("The read List values arrays.")
@Out
public List<double[]> data;
private BufferedReader csvReader;
private void ensureOpen() throws IOException {
if (csvReader == null)
csvReader = new BufferedReader(new FileReader(file));
}
@Execute
public void readFile() throws IOException {
ensureOpen();
data = new ArrayList<double[]>();
String line = null;
while( (line = csvReader.readLine()) != null ) {
String[] lineSplit = line.trim().split(pSeparator);
double[] values = new double[pCols];
for( int j = 0; j < pCols; j++ ) {
double value = Double.parseDouble(lineSplit[j]);
if (fileNovalue != null) {
if (lineSplit[j].equals(fileNovalue)) {
// set to internal novalue
value = doubleNovalue;
}
}
values[j] = value;
}
data.add(values);
}
}
@Finalize
public void close() throws IOException {
csvReader.close();
}
}