Example usage for org.apache.commons.imaging.formats.tiff.taginfos TagInfo getDescription

Introduction

In this page you can find the example usage for org.apache.commons.imaging.formats.tiff.taginfos TagInfo getDescription.

Prototype

public String getDescription() 

Source Link

Usage

From source file:de.aikiit.fotorenamer.image.MetaDataExtractor.java

/**
 * Returns the requested tag as String from the image file.
 *
 * @param image Image file to extract Metadata from.
 * @param tag   Tag to extract from the given file, @see TiffConstants
 * @return Returns exif tag value, in case of any errors the value is an
 * empty String.//  w w w  . ja v a2  s .co m
 * @throws IOException        if file cannot be accessed.
 * @throws ImageReadException if an error occurred during image processing.
 */
public static String getExifMetadata(final File image, final TagInfo tag)
        throws IOException, ImageReadException {
    assert image != null : "Parameter image must not be null";
    assert tag != null : "Parameter tag must not be null";

    String result = EMPTY_STRING;
    ImageMetadata metadata = Imaging.getMetadata(image);

    /*
            for(ImageMetadata.ImageMetadataItem item:metadata.getItems()) {
    System.out.println("WWW: " + item.getSelectedDirectory());
            }
      */
    if (metadata instanceof JpegImageMetadata) {
        JpegImageMetadata jpegMetadata = (JpegImageMetadata) metadata;
        TiffField field = jpegMetadata.findEXIFValueWithExactMatch(tag);
        if (field != null) {
            result = field.getValueDescription();
            LOG.info("extraction of " + tag.getDescription() + " yields " + result);
        }
    }
    return (result == null ? EMPTY_STRING : result);
}

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