org.jgrasstools.gears.io.dbf.DbfTableReader Maven / Gradle / Ivy

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/*
 * This file is part of JGrasstools (http://www.jgrasstools.org)
 * (C) HydroloGIS - www.hydrologis.com 
 * 
 * JGrasstools 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.
 *
 * This program 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 this program.  If not, see .
 */
package org.jgrasstools.gears.io.dbf;

import java.io.FileInputStream;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import oms3.annotations.Author;
import oms3.annotations.Description;
import oms3.annotations.Execute;
import oms3.annotations.In;
import oms3.annotations.Keywords;
import oms3.annotations.Label;
import oms3.annotations.License;
import oms3.annotations.Name;
import oms3.annotations.Out;
import oms3.annotations.Status;
import oms3.annotations.UI;

import org.geotools.data.shapefile.dbf.DbaseFileHeader;
import org.geotools.data.shapefile.dbf.DbaseFileReader;
import org.jgrasstools.gears.libs.modules.JGTConstants;
import org.jgrasstools.gears.libs.modules.JGTModel;

@Description("Utility class for reading dbf tables.")
@Author(name = "Andrea Antonello", contact = "http://www.hydrologis.com")
@Keywords("IO, Shapefile, Feature, Vector, Reading")
@Label(JGTConstants.HASHMAP_READER)
@Status(Status.DRAFT)
@Name("dbfreader")
@License("General Public License Version 3 (GPLv3)")
public class DbfTableReader extends JGTModel {
    @Description("The dbf file.")
    @UI(JGTConstants.FILEIN_UI_HINT)
    @In
    public String file = null;

    @Description("The read dbf table.")
    @Out
    public HashMap> outTabledata = null;

    @Execute
    public void readTable() throws IOException {
        if (!concatOr(outTabledata == null, doReset)) {
            return;
        }

        FileInputStream fis = null;
        DbaseFileReader dbfReader = null;
        try {

            fis = new FileInputStream(file);
            dbfReader = new DbaseFileReader(fis.getChannel(), false, Charset.defaultCharset());
            final DbaseFileHeader header = dbfReader.getHeader();
            int numFields = header.getNumFields();
            outTabledata = new HashMap>();
            for( int i = 0; i < numFields; i++ ) {
                String fieldName = header.getFieldName(i);
                outTabledata.put(fieldName, new ArrayList