| 0,0 → 1,84 |
|---|
| /* |
| * This is public domain software - that is, you can do whatever you want |
| * with it, and include it software that is licensed under the GNU or the |
| * BSD license, or whatever other licence you choose, including proprietary |
| * closed source licenses. I do ask that you leave this header in tact. |
| * |
| * If you make modifications to this code that you think would benefit the |
| * wider community, please send me a copy and I'll post it on my site. |
| * |
| * If you make use of this code, I'd appreciate hearing about it. |
| * drew@drewnoakes.com |
| * Latest version of this software kept at |
| * http://drewnoakes.com/ |
| * |
| * Created by dnoakes on Oct 10, 2003 using IntelliJ IDEA. |
| */ |
| package com.drew.metadata.jpeg; |
| |
| import com.drew.imaging.jpeg.JpegProcessingException; |
| import com.drew.imaging.jpeg.JpegSegmentReader; |
| import com.drew.metadata.Metadata; |
| import com.drew.metadata.MetadataReader; |
| |
| import java.io.File; |
| import java.io.InputStream; |
| |
| /** |
| * |
| * @author Drew Noakes http://drewnoakes.com |
| */ |
| public class JpegCommentReader implements MetadataReader |
| { |
| /** |
| * The COM data segment. |
| */ |
| private final byte[] _data; |
| |
| /** |
| * Creates a new JpegReader for the specified Jpeg jpegFile. |
| */ |
| public JpegCommentReader(File jpegFile) throws JpegProcessingException |
| { |
| this(new JpegSegmentReader(jpegFile).readSegment(JpegSegmentReader.SEGMENT_COM)); |
| } |
| |
| /** Creates a JpegCommentReader for a JPEG stream. |
| * |
| * @param is JPEG stream. Stream will be closed. |
| */ |
| public JpegCommentReader(InputStream is) throws JpegProcessingException |
| { |
| this(new JpegSegmentReader(is).readSegment(JpegSegmentReader.SEGMENT_APPD)); |
| } |
| |
| public JpegCommentReader(byte[] data) |
| { |
| _data = data; |
| } |
| |
| /** |
| * Performs the Jpeg data extraction, returning a new instance of <code>Metadata</code>. |
| */ |
| public Metadata extract() |
| { |
| return extract(new Metadata()); |
| } |
| |
| /** |
| * Performs the Jpeg data extraction, adding found values to the specified |
| * instance of <code>Metadata</code>. |
| */ |
| public Metadata extract(Metadata metadata) |
| { |
| if (_data==null) { |
| return metadata; |
| } |
| |
| JpegCommentDirectory directory = (JpegCommentDirectory)metadata.getDirectory(JpegCommentDirectory.class); |
| |
| directory.setString(JpegCommentDirectory.TAG_JPEG_COMMENT, new String(_data)); |
| |
| return metadata; |
| } |
| } |