fr.amapj.service.engine.generator.excel.AbstractExcelGenerator.java Source code

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Here is the source code for fr.amapj.service.engine.generator.excel.AbstractExcelGenerator.java

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/*
 *  Copyright 2013-2018 Emmanuel BRUN (contact@amapj.fr)
 * 
 *  This file is part of AmapJ.
 *  
 *  AmapJ is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
    
 *  AmapJ 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 Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with AmapJ.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * 
 */
package fr.amapj.service.engine.generator.excel;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import javax.persistence.EntityManager;

import org.apache.poi.ss.usermodel.Workbook;

import fr.amapj.model.engine.tools.TestTools;
import fr.amapj.service.engine.generator.CoreGenerator;
import fr.amapj.service.engine.generator.CoreGeneratorService;

/**
 * Permet la gestion des extractions excels
 * 
 *  
 *
 */
abstract public class AbstractExcelGenerator implements CoreGenerator {

    /**
     * Permet de gnrer le fichier Excel pour un modele de contrat
     * @return
     */
    abstract public void fillExcelFile(EntityManager em, ExcelGeneratorTool et);

    abstract public String getFileName(EntityManager em);

    abstract public String getNameToDisplay(EntityManager em);

    abstract public ExcelFormat getFormat();

    private String nameToDisplaySuffix;

    /**
     * Permet de positionner un suffixe au file name, par exemple pour prciser son format
     * Ce suffixe est  la fin du nom de fichier, mais avant l'extension 
     */
    public void setNameToDisplaySuffix(String nameToDisplaySuffix) {
        this.nameToDisplaySuffix = nameToDisplaySuffix;
    }

    @Override
    public String getNameToDisplaySuffix() {
        return nameToDisplaySuffix;
    }

    public String getExtension() {
        return getFormat().toString().toLowerCase();
    }

    @Override
    public InputStream getContent() {

        Workbook workbook = new CoreGeneratorService().getFichierExcel(this);

        ByteArrayOutputStream imagebuffer = new ByteArrayOutputStream();

        try {
            workbook.write(imagebuffer);
        } catch (IOException e) {
            throw new RuntimeException("Erreur inattendue");
        }
        return new ByteArrayInputStream(imagebuffer.toByteArray());
    }

    public void test() throws IOException {
        TestTools.init();

        String filename = "test." + this.getFormat().name().toLowerCase();
        Workbook workbook = new CoreGeneratorService().getFichierExcel(this);

        FileOutputStream fileOut = new FileOutputStream(filename);
        workbook.write(fileOut);
        fileOut.close();
        System.out.println("Your excel file has been generated!");
    }

    /**
     * Pour les tests unitaires 
     * 
     */
    public UnitTestInfo unitTest() throws IOException {
        UnitTestInfo res = new UnitTestInfo();

        res.fileExtension = this.getFormat().name().toLowerCase();
        Workbook workbook = new CoreGeneratorService().getFichierExcel(this);

        res.baos = new ByteArrayOutputStream();
        workbook.write(res.baos);

        return res;
    }

    public class UnitTestInfo {
        public ByteArrayOutputStream baos;
        public String fileExtension;
    }
}