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590
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1 /**
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2 *
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3 */
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4 package digilib.io;
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5
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906
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6 import java.io.IOException;
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590
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7 import java.io.InputStream;
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8
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9 import javax.imageio.ImageIO;
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10 import javax.imageio.stream.ImageInputStream;
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11
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12 /**
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13 * @author casties
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14 *
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15 */
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16 public class ImageCacheStream extends ImageStream {
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17
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18 private ImageInputStream iis = null;
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19
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20 /** Create ImageCacheStream from InputStream and mime-type.
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21 *
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22 * @param stream
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23 * @param mimeType
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24 * @throws IOException
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25 */
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26 public ImageCacheStream(InputStream stream, String mimeType) throws IOException {
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27 super(stream, mimeType);
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28 /*
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29 * Type of stream backing configured via ImageIO.setUseCache().
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30 * [...] In general, it is preferable to
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31 * use a FileCacheImageInputStream when reading from a regular
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32 * InputStream. This class is provided for cases where it is not
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33 * possible to create a writable temporary file.
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34 */
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35 iis = ImageIO.createImageInputStream(stream);
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590
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36 }
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37
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38 /*
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39 * (non-Javadoc)
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40 *
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41 * @see digilib.io.ImageInput#hasImageInputStream()
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42 */
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43 @Override
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44 public boolean hasImageInputStream() {
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45 return true;
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46 }
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47
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48 /*
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49 * (non-Javadoc)
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50 *
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51 * @see digilib.io.ImageInput#getImageInputStream()
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52 */
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53 @Override
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54 public ImageInputStream getImageInputStream() {
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55 return iis;
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56 }
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57
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58 }
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