eu.aniketos.wp1.ststool.report.pdfgenerator.GenUtils.java Source code

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/*
* GenUtils.java
*
* This file is part of the STS-Tool project.
* Copyright (c) 2011-2012 "University of Trento - DISI" All rights reserved.
*
* Is strictly forbidden to remove this copyright notice from this source code.
*
* Disclaimer of Warranty:
* STS-Tool (this software) is provided "as-is" and without warranty of any kind, 
* express, implied or otherwise, including without limitation, any warranty of 
* merchantability or fitness for a particular purpose.
* In no event shall the copyright holder or contributors be liable for any direct,
* indirect, incidental, special, exemplary, or consequential damages
* including, but not limited to, procurement of substitute goods or services;
* loss of use, data, or profits; or business interruption) however caused and on
* any theory of liability, whether in contract, strict liability, or tort (including
* negligence or otherwise) arising in any way out of the use of this software, even 
* if advised of the possibility of such damage.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 
* "University of Trento - DISI","University of Trento - DISI" DISCLAIMS THE
* WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* 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 this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://www.sts-tool.eu/License.php
*
* For more information, please contact STS-Tool group at this
* address: ststool@disi.unitn.it
*
*/
package eu.aniketos.wp1.ststool.report.pdfgenerator;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import com.itextpdf.text.BadElementException;
import com.itextpdf.text.Image;
import eu.aniketos.wp1.ststool.report.Activator;

public class GenUtils {

    public static Image getImage(String resourceName)
            throws BadElementException, MalformedURLException, IOException {
        return Image.getInstance(getResourceAsByteArray(resourceName));
    }

    public static Image getImage(URL url) throws BadElementException, MalformedURLException, IOException {
        return Image.getInstance(getResourceAsByteArray(url));
    }

    protected static byte[] getResourceAsByteArray(File file) throws IOException {
        URL url = file.toURI().toURL();
        return getResourceAsByteArray(url);
    }

    protected static byte[] getResourceAsByteArray(String resourceName) throws IOException {
        URL url = Activator.getDefault().getBundle().getResource(resourceName);
        return getResourceAsByteArray(url);
    }

    protected static byte[] getResourceAsByteArray(URL url) throws IOException {
        ByteArrayOutputStream bais = new ByteArrayOutputStream();
        InputStream is = null;
        try {
            if (url != null) {
                is = url.openStream();
                byte[] byteChunk = new byte[4096]; // Or whatever size you want to read in at a time.
                int n;
                while ((n = is.read(byteChunk)) > 0) {
                    bais.write(byteChunk, 0, n);
                }
            }
        } finally {
            if (is != null) {
                is.close();
            }
        }
        return bais.toByteArray();
    }
}