zz.filecollector.fileprocessor.JpgPhotoProcessor.java Source code

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Here is the source code for zz.filecollector.fileprocessor.JpgPhotoProcessor.java

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package zz.filecollector.fileprocessor;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import org.apache.commons.imaging.Imaging;
import org.apache.commons.imaging.common.ImageMetadata;
import org.apache.commons.imaging.formats.jpeg.JpegImageMetadata;
import org.apache.commons.imaging.formats.tiff.TiffField;
import org.apache.commons.imaging.formats.tiff.constants.TiffTagConstants;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.lang3.StringUtils;
import zz.filecollector.FileInfo;

/**
 *
 * @author zhan
 */
public class JpgPhotoProcessor implements FileProcessor {

    private static final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy:MM:dd HH:mm:ss", Locale.CHINA);

    @Override
    public void extractFileInfo(File file, FileInfo info) {
        FileProcessor.getBasicFileInfo(file, info);
        if (info.getFileType() == FileInfo.UNKNOWN) {
            info.setFileType(FileInfo.PHOTO);
        }

        try {
            ImageMetadata metadata = Imaging.getMetadata(file);
            if (metadata instanceof JpegImageMetadata) {
                final JpegImageMetadata jpegMetadata = (JpegImageMetadata) metadata;

                if (info.getCreateDate() == null) {
                    try {
                        TiffField dateTime = jpegMetadata
                                .findEXIFValueWithExactMatch(TiffTagConstants.TIFF_TAG_DATE_TIME);
                        if (dateTime != null) {
                            String str = dateTime.getStringValue(); // 2014:02:06 12:11:26
                            if (StringUtils.isNotEmpty(str)) {
                                Date date = dateFormat.parse(str);
                                info.setCreateDate(date);
                            }
                        }
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }

                if (info.getDevice() == null) {
                    TiffField model = jpegMetadata.findEXIFValueWithExactMatch(TiffTagConstants.TIFF_TAG_MODEL);
                    if (model != null) {
                        byte[] bytes = model.getByteArrayValue();
                        String modelStr = new String(bytes).trim();
                        if (StringUtils.isNotEmpty(modelStr)) {
                            info.setDevice(modelStr);
                        }
                    }
                }
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    @Override
    public boolean accept(File file) {
        String ext = FilenameUtils.getExtension(file.getName()).toLowerCase();
        return "jpg".equals(ext) || "jpeg".equals(ext);
    }

}