/**
* SpagoBI - The Business Intelligence Free Platform
*
* Copyright (C) 2004 - 2008 Engineering Ingegneria Informatica S.p.A.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
**/
package it.eng.spagobi.engines.chart.service;
import it.eng.spago.base.SourceBean;
import it.eng.spagobi.engines.chart.utils.ExportHighCharts;
import it.eng.spagobi.utilities.engines.AbstractEngineAction;
import it.eng.spagobi.utilities.engines.SpagoBIEngineRuntimeException;
import it.eng.spagobi.utilities.engines.SpagoBIEngineServiceException;
import it.eng.spagobi.utilities.engines.SpagoBIEngineServiceExceptionHandler;
import it.eng.spagobi.utilities.mime.MimeUtils;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.log4j.Logger;
import sun.misc.BASE64Decoder;
/**
* The Class ExportHighChartsAction.
*
* @author Antonella Giachino (antonella.giachino@eng.it)
*/
public class ExportHighChartsAction extends AbstractEngineAction {
// INPUT PARAMETERS
public static String SVG = "svg";
public static String OUTPUT_FORMAT = "type";
public static String OUTPUT_FORMAT_PNG = "PNG";
public static String OUTPUT_FORMAT_JPEG = "JPG";
public static String OUTPUT_FORMAT_PDF = "PDF";
public static String OUTPUT_FORMAT_SVG = "SVG+XML";
/** Logger component. */
private static transient Logger logger = Logger.getLogger(ExportHighChartsAction.class);
private static final BASE64Decoder DECODER = new BASE64Decoder();
public static final String ENGINE_NAME = "SpagoBIChartEngine";
public void service(SourceBean request, SourceBean response) {
logger.debug("IN");
InputStream inputStream = null;
OutputStream outputStream = null;
try {
super.service(request, response);
freezeHttpResponse();
String svg = this.getAttributeAsString(SVG);
inputStream = new ByteArrayInputStream(svg.getBytes("UTF-8"));
String outputType = this.getAttributeAsString(OUTPUT_FORMAT);
if (outputType == null || outputType.trim().equals("")) {
logger.debug("Output format not specified, default is " + OUTPUT_FORMAT_JPEG);
outputType = OUTPUT_FORMAT_JPEG;
}
File exportFile = null;
String ext = null;
if (outputType.equalsIgnoreCase(OUTPUT_FORMAT_PNG)) {
ext = ".png";
exportFile = File.createTempFile("chart", ext);
outputStream = new FileOutputStream(exportFile);
ExportHighCharts.transformSVGIntoPNG(inputStream, outputStream);
} else if (outputType.equalsIgnoreCase(OUTPUT_FORMAT_JPEG)) {
ext = ".jpg";
exportFile = File.createTempFile("chart", ext);
outputStream = new FileOutputStream(exportFile);
ExportHighCharts.transformSVGIntoJPEG(inputStream, outputStream);
} else if (outputType.equalsIgnoreCase(OUTPUT_FORMAT_PDF)) {
ext = ".pdf";
exportFile = File.createTempFile("chart", ext);
outputStream = new FileOutputStream(exportFile);
ExportHighCharts.transformSVGIntoPDF(inputStream, outputStream);
} else if (outputType.equalsIgnoreCase(OUTPUT_FORMAT_SVG)) {
ext = ".svg";
exportFile = File.createTempFile("chart", ext);
outputStream = new FileOutputStream(exportFile);
ExportHighCharts.writeSVG(inputStream, outputStream);
} else {
throw new SpagoBIEngineRuntimeException("Output format [" + outputType + "] not supperted");
}
String mimetype = MimeUtils.getMimeType(exportFile);
try {
writeBackToClient(exportFile, null, false, exportFile.getName(), mimetype);
} catch (IOException e) {
String message = "Impossible to write back the responce to the client";
throw new SpagoBIEngineServiceException(getActionName(), message, e);
}
} catch (Throwable t) {
throw SpagoBIEngineServiceExceptionHandler.getInstance().getWrappedException(getActionName(), getEngineInstance(), t);
} finally {
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
logger.error(e);
}
}
if (outputStream != null) {
try {
outputStream.close();
} catch (IOException e) {
logger.error(e);
}
}
logger.debug("OUT");
}
}
}