OcrsdkImage.java

package de.uni_goettingen.sub.commons.ocr.abbyy.ocrsdk;

import java.io.IOException;
import java.net.URI;

import org.apache.commons.io.IOUtils;

import de.uni_goettingen.sub.commons.ocr.api.AbstractImage;

/**
 * Representation of an image that is to be recognized by Abbyy OCRSDK service.
 * 
 * @author dennis
 *
 */
public class OcrsdkImage extends AbstractImage {
	
	@Override
	public void setLocalUri(URI localUri) {
		if (!"file".equals(localUri.getScheme())) {
			throw new IllegalArgumentException("Only local files are supported");
		}
		super.setLocalUri(localUri);
	}
	
	/**
	 * Reads the image from the internal URI.
	 * 
	 * @return Binary representation of the image
	 */
	public byte[] getAsBytes() {
		byte[] imageBytes = null;
		try {
			imageBytes = IOUtils.toByteArray(localUri);
		} catch (IOException e) {
			throw new IllegalStateException("Could not read from " + localUri, e);
		}
		return imageBytes;
	}
}