org.inbio.modeling.core.manager.impl.FileManagerImpl.java Source code

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Here is the source code for org.inbio.modeling.core.manager.impl.FileManagerImpl.java

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/* Modeling - Application to model threats.
 *
 * Copyright (C) 2010  INBio (Instituto Nacional de Biodiversidad)
 *
 * This program 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 <http://www.gnu.org/licenses/>.
 */
package org.inbio.modeling.core.manager.impl;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.FilenameFilter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.inbio.modeling.core.dto.CategoryDTO;
import org.inbio.modeling.core.dto.GrassLayerDTO;
import org.inbio.modeling.core.manager.FileManager;
import org.springframework.dao.EmptyResultDataAccessException;

/**
 *
 * @author asanabria
 */
public class FileManagerImpl implements FileManager {

    protected final Log logger = LogFactory.getLog(getClass());

    private String tempHome;
    private String fileName;
    private String fileExtension;
    private String layerHome;

    @Override
    /**
     * @see org.inbio.modeling.core.dao.LayerDAO#listLayerHomeFolder()
     */
    public List<String> listLayerHomeFolder() throws EmptyResultDataAccessException {

        String childrenName = null;
        List<String> names = null;

        File dir = new File(this.layerHome);
        String[] children = dir.list(filter);

        if (children == null) {
            throw new EmptyResultDataAccessException(tempHome, 1);
        } else {
            names = new ArrayList<String>();
            for (int i = 0; i < children.length; i++) {

                //deletes the extension.
                childrenName = children[i];
                childrenName = childrenName.replace(".shp", "");

                // Add the file name to ArrayList
                names.add(childrenName);
            }

        }

        return names;
    }

    static FilenameFilter filter = new FilenameFilter() {
        @Override
        public boolean accept(File dir, String name) {
            return name.endsWith(".shp");
        }
    };

    @Override
    /**
     * @see org.inbio.modeling.core.manager.FileManager#writeReclasFile(GrassLayerDTO layer, Long suffix)
     */
    public void writeReclasFile(GrassLayerDTO layer, Long suffix) throws IOException {

        FileWriter fstream = null;
        BufferedWriter out = null;
        String[] value = null;
        String line = "";
        int index = 1;

        try {

            fstream = new FileWriter(tempHome + fileName + suffix + fileExtension);
            out = new BufferedWriter(fstream);

            for (CategoryDTO category : layer.getCategories()) {

                if (this.validateFormat(category)) {

                    if (category.isInterval()) {
                        value = category.getValue().split("-");
                        category.setValue(value[0] + " thru " + value[1]);
                    }

                    line = category.getValue() + " = " + index + " " + category.getDescription() + "\n";
                    index++;
                    out.write(line);
                }
            }
            out.write("* = NULL\n");

            out.close();
            fstream.close();
        } catch (IOException e) {
            throw new IOException(tempHome);
        }
    }

    private boolean validateFormat(CategoryDTO category) {

        if (category == null)
            return false;

        boolean result = false;
        String temp[] = null;
        String value = category.getValue();
        value = value.replace(" ", "");

        if (value.matches("\\d+")) {
            result = true;
        }
        if (value.matches("\\d+(,\\d+)+")) {
            result = true;
            value = value.replace(",", " ");
            category.setValue(value);
        } else if (value.matches("\\d+\\.?\\d*-\\d+\\.?\\d*")) {
            result = true;
            category.setInterval(true);
        }

        return result;
    }

    /* getters y setters */
    public String getTempHome() {
        return tempHome;
    }

    public void setTempHome(String tempHome) {
        this.tempHome = tempHome;
    }

    public String getFileName() {
        return fileName;
    }

    public void setFileName(String fileName) {
        this.fileName = fileName;
    }

    public String getFileExtension() {
        return fileExtension;
    }

    public void setFileExtension(String fileExtension) {
        this.fileExtension = fileExtension;
    }

    public String getLayerHome() {
        return layerHome;
    }

    public void setLayerHome(String layerHome) {
        this.layerHome = layerHome;
    }
}