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/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2016 TIBCO Software Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports 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 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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 JasperReports. If not, see .
*/
package net.sf.jasperreports.renderers.util;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Image;
import java.awt.Transparency;
import java.awt.image.ColorModel;
import java.awt.image.RenderedImage;
import java.io.File;
import java.io.InputStream;
import java.net.URL;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.JasperReportsContext;
import net.sf.jasperreports.engine.type.ImageTypeEnum;
import net.sf.jasperreports.engine.type.OnErrorTypeEnum;
import net.sf.jasperreports.engine.util.JRImageLoader;
import net.sf.jasperreports.engine.util.JRLoader;
import net.sf.jasperreports.engine.util.JRTypeSniffer;
import net.sf.jasperreports.renderers.DataRenderable;
import net.sf.jasperreports.renderers.Graphics2DRenderable;
import net.sf.jasperreports.renderers.Renderable;
import net.sf.jasperreports.renderers.RenderersCache;
import net.sf.jasperreports.renderers.ResourceRenderer;
import net.sf.jasperreports.renderers.SimpleDataRenderer;
import net.sf.jasperreports.renderers.WrappingRenderToImageDataRenderer;
import net.sf.jasperreports.repo.RepositoryUtil;
/**
* @author Teodor Danciu ([email protected])
*/
public class RendererUtil
{
private static final Log log = LogFactory.getLog(RendererUtil.class);
public static final String EXCEPTION_MESSAGE_KEY_IMAGE_ERROR = "engine.renderable.util.image.error";
public static final String EXCEPTION_MESSAGE_KEY_RENDERABLE_MUST_IMPLEMENT_INTERFACE = "engine.renderable.must.implement.interface";
public static final Renderable NO_IMAGE_RENDERER = ResourceRenderer.getInstance(JRImageLoader.NO_IMAGE_RESOURCE, false);
public static final String SVG_MIME_TYPE = "image/svg+xml";
public static final String SVG_FILE_EXTENSION = "svg";
/**
*
*/
private final JasperReportsContext jasperReportsContext;
private SvgDataSniffer svgDataSniffer;
/**
*
*/
private RendererUtil(JasperReportsContext jasperReportsContext)
{
this.jasperReportsContext = jasperReportsContext;
}
/**
*
*/
public static RendererUtil getInstance(JasperReportsContext jasperReportsContext)
{
return new RendererUtil(jasperReportsContext);
}
/**
*
*/
public boolean isSvgData(byte[] data)
{
if (JRTypeSniffer.getImageTypeValue(data) == ImageTypeEnum.UNKNOWN)
{
//change the general XML sniffer to a test that specifically looks for an