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• ExifUtil.java

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net.sf.jasperreports.engine.util.ExifUtil Maven / Gradle / Ivy

/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2022 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.engine.util;

import java.io.ByteArrayInputStream;
import java.io.IOException;

import com.drew.imaging.ImageMetadataReader;
import com.drew.imaging.ImageProcessingException;
import com.drew.metadata.Metadata;
import com.drew.metadata.MetadataException;
import com.drew.metadata.exif.ExifIFD0Directory;

import net.sf.jasperreports.engine.JRRuntimeException;

/**
 * @author Teodor Danciu ([email protected])
 */
public final class ExifUtil
{
	/**
	 *
	 */
	public static ExifOrientationEnum getExifOrientation(byte[] data)
	{
		ExifOrientationEnum exifOrientation = null;
		
		try 
		{
			Metadata metadata = ImageMetadataReader.readMetadata(new ByteArrayInputStream(data));
			ExifIFD0Directory directory = metadata.getFirstDirectoryOfType(ExifIFD0Directory.class);
			if (directory != null && directory.containsTag(ExifIFD0Directory.TAG_ORIENTATION))
			{
				exifOrientation = ExifOrientationEnum.getByValue(directory.getInt(ExifIFD0Directory.TAG_ORIENTATION));
			}
		}
		catch (ImageProcessingException | IOException | MetadataException e) 
		{
			throw new JRRuntimeException(e);
		}
		
		return exifOrientation;
	}
}