it.inserpio.mapillary.gopro.importer.exif.EXIFPropertyReader.java Source code

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Here is the source code for it.inserpio.mapillary.gopro.importer.exif.EXIFPropertyReader.java

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/*
 * Copyright 2014 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package it.inserpio.mapillary.gopro.importer.exif;

import java.io.File;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;

import org.apache.commons.imaging.ImageReadException;
import org.apache.commons.imaging.Imaging;
import org.apache.commons.imaging.common.IImageMetadata;
import org.apache.commons.imaging.formats.jpeg.JpegImageMetadata;
import org.apache.commons.imaging.formats.tiff.constants.ExifTagConstants;

/**
 * @author Lorenzo Speranzoni
 * @since May 4, 2014
 */
public class EXIFPropertyReader {
    public static long getDateTimeOriginal(File imageFile) throws ImageReadException, IOException, ParseException {
        final IImageMetadata metadata = Imaging.getMetadata(imageFile);
        final JpegImageMetadata jpegMetadata = (JpegImageMetadata) metadata;

        String dateTimeOriginal = jpegMetadata.getExif()
                .getFieldValue(ExifTagConstants.EXIF_TAG_DATE_TIME_ORIGINAL)[0];

        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy:MM:dd HH:mm:ss");

        return dateFormat.parse(dateTimeOriginal).getTime();
    }
}