ImageParser extends AbstractParser { public void parse( InputStream stream, ContentHandler handler, Metadata metadata, ParseContext context) throws IOException, SAXException, TikaException { String type = metadata.get(Metadata.CONTENT_TYPE); if (type != null) { if (OLD_BMP_TYPE.toString().equals(type)) { type = MAIN_BMP_TYPE.toString(); } try { Iterator<ImageReader> iterator = ImageIO.getImageReadersByMIMEType(type); if (iterator.hasNext()) { ImageReader reader = iterator.next(); try { try (ImageInputStream imageStream = ImageIO.createImageInputStream( new CloseShieldInputStream(stream))) { reader.setInput(imageStream); metadata.set(Metadata.IMAGE_WIDTH, Integer.toString(reader.getWidth(0))); metadata.set(Metadata.IMAGE_LENGTH, Integer.toString(reader.getHeight(0))); metadata.set("height", Integer.toString(reader.getHeight(0))); metadata.set("width", Integer.toString(reader.getWidth(0))); loadMetadata(reader.getImageMetadata(0), metadata); } } finally { reader.dispose(); } } setIfPresent(metadata, "CommentExtensions CommentExtension", TikaCoreProperties.COMMENTS); setIfPresent(metadata, "markerSequence com", TikaCoreProperties.COMMENTS); setIfPresent(metadata, "Data BitsPerSample", Metadata.BITS_PER_SAMPLE); } catch (IIOException e) { if (!(e.getMessage() != null && e.getMessage().equals("Unexpected block type 0!") && type.equals("image/gif"))) { throw new TikaException(type + " parse error", e); } } } XHTMLContentHandler xhtml = new XHTMLContentHandler(handler, metadata); xhtml.startDocument(); xhtml.endDocument(); }  Set<MediaType> getSupportedTypes(ParseContext context); void parse(
            InputStream stream, ContentHandler handler,
            Metadata metadata, ParseContext context);  }
@Test public void testBMP() throws Exception { Metadata metadata = new Metadata(); metadata.set(Metadata.CONTENT_TYPE, "image/bmp"); try (InputStream stream = getClass().getResourceAsStream("/test-documents/testBMP.bmp")) { parser.parse(stream, new DefaultHandler(), metadata, new ParseContext()); } assertEquals("75", metadata.get("height")); assertEquals("100", metadata.get("width")); assertEquals("8 8 8", metadata.get("Data BitsPerSample")); assertEquals("1.0", metadata.get("Dimension PixelAspectRatio")); assertEquals("BI_RGB", metadata.get("Compression CompressionTypeName")); assertEquals("image/bmp", metadata.get("Content-Type")); assertEquals("100", metadata.get(Metadata.IMAGE_WIDTH)); assertEquals("75", metadata.get(Metadata.IMAGE_LENGTH)); assertEquals("8 8 8", metadata.get(Metadata.BITS_PER_SAMPLE)); }
@Test public void testGIF() throws Exception { Metadata metadata = new Metadata(); metadata.set(Metadata.CONTENT_TYPE, "image/gif"); try (InputStream stream = getClass().getResourceAsStream("/test-documents/testGIF.gif")) { parser.parse(stream, new DefaultHandler(), metadata, new ParseContext()); } assertEquals("75", metadata.get("height")); assertEquals("100", metadata.get("width")); assertEquals("true", metadata.get("Compression Lossless")); assertEquals("Normal", metadata.get("Dimension ImageOrientation")); assertEquals("lzw", metadata.get("Compression CompressionTypeName")); assertEquals("0", metadata.get("Dimension HorizontalPixelOffset")); assertEquals("imageLeftPosition=0, imageTopPosition=0, imageWidth=100, imageHeight=75, interlaceFlag=false", metadata.get("ImageDescriptor")); assertEquals("Index", metadata.get("Data SampleFormat")); assertEquals("3", metadata.get("Chroma NumChannels")); assertEquals("1", metadata.get("Compression NumProgressiveScans")); assertEquals("RGB", metadata.get("Chroma ColorSpaceType")); assertEquals("Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership.", metadata.get("CommentExtensions CommentExtension")); assertEquals("value=Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership., encoding=ISO-8859-1, compression=none", metadata.get("Text TextEntry")); assertEquals("true", metadata.get("Chroma BlackIsZero")); assertEquals("disposalMethod=none, userInputFlag=false, transparentColorFlag=false, delayTime=0, transparentColorIndex=0", metadata.get("GraphicControlExtension")); assertEquals("0", metadata.get("Dimension VerticalPixelOffset")); assertEquals("image/gif", metadata.get("Content-Type")); assertEquals("100", metadata.get(Metadata.IMAGE_WIDTH)); assertEquals("75", metadata.get(Metadata.IMAGE_LENGTH)); assertEquals("Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership.", metadata.get(TikaCoreProperties.COMMENTS)); }
@Test public void testJPEG() throws Exception { Metadata metadata = new Metadata(); metadata.set(Metadata.CONTENT_TYPE, "image/jpeg"); try (InputStream stream = getClass().getResourceAsStream("/test-documents/testJPEG.jpg")) { parser.parse(stream, new DefaultHandler(), metadata, new ParseContext()); } assertEquals("75", metadata.get("height")); assertEquals("100", metadata.get("width")); assertEquals("0.35277778", metadata.get("Dimension VerticalPixelSize")); assertEquals("false", metadata.get("Compression Lossless")); assertEquals("class=0, htableId=0", metadata.get("markerSequence dht dhtable")); assertEquals("majorVersion=1, minorVersion=1, resUnits=1, Xdensity=72, Ydensity=72, thumbWidth=0, thumbHeight=0", metadata.get("JPEGvariety app0JFIF")); assertEquals("225", metadata.get("markerSequence unknown")); assertEquals("componentSelector=1, dcHuffTable=0, acHuffTable=0", metadata.get("markerSequence sos scanComponentSpec")); assertEquals("normal", metadata.get("Dimension ImageOrientation")); assertEquals("1.0", metadata.get("Dimension PixelAspectRatio")); assertEquals("elementPrecision=0, qtableId=0", metadata.get("markerSequence dqt dqtable")); assertEquals("numScanComponents=3, startSpectralSelection=0, endSpectralSelection=63, approxHigh=0, approxLow=0", metadata.get("markerSequence sos")); assertEquals("componentId=1, HsamplingFactor=1, VsamplingFactor=1, QtableSelector=0", metadata.get("markerSequence sof componentSpec")); assertEquals("JPEG", metadata.get("Compression CompressionTypeName")); assertEquals("0.35277778", metadata.get("Dimension HorizontalPixelSize")); assertEquals("Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership.", metadata.get("markerSequence com")); assertEquals("3", metadata.get("Chroma NumChannels")); assertEquals("1", metadata.get("Compression NumProgressiveScans")); assertEquals("YCbCr", metadata.get("Chroma ColorSpaceType")); assertEquals("keyword=comment, value=Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership.", metadata.get("Text TextEntry")); assertEquals("image/jpeg", metadata.get("Content-Type")); assertEquals("process=0, samplePrecision=8, numLines=75, samplesPerLine=100, numFrameComponents=3", metadata.get("markerSequence sof")); assertEquals("100", metadata.get(Metadata.IMAGE_WIDTH)); assertEquals("75", metadata.get(Metadata.IMAGE_LENGTH)); assertEquals("Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership.", metadata.get(TikaCoreProperties.COMMENTS)); }
@Test public void testPNG() throws Exception { Metadata metadata = new Metadata(); metadata.set(Metadata.CONTENT_TYPE, "image/png"); try (InputStream stream = getClass().getResourceAsStream("/test-documents/testPNG.png")) { parser.parse(stream, new DefaultHandler(), metadata, new ParseContext()); } assertEquals("75", metadata.get("height")); assertEquals("100", metadata.get("width")); assertEquals("0.35273367", metadata.get("Dimension VerticalPixelSize")); assertEquals("8 8 8", metadata.get("Data BitsPerSample")); assertEquals("Perceptual", metadata.get("sRGB")); assertEquals("true", metadata.get("Compression Lossless")); assertEquals("year=2008, month=5, day=6, hour=6, minute=18, second=47", metadata.get("tIME")); assertEquals("Normal", metadata.get("Dimension ImageOrientation")); assertEquals("1.0", metadata.get("Dimension PixelAspectRatio")); assertEquals("keyword=Comment, value=Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership.", metadata.get("tEXt tEXtEntry")); assertEquals("deflate", metadata.get("Compression CompressionTypeName")); assertEquals("UnsignedIntegral", metadata.get("Data SampleFormat")); assertEquals("0.35273367", metadata.get("Dimension HorizontalPixelSize")); assertEquals("none", metadata.get("Transparency Alpha")); assertEquals("pixelsPerUnitXAxis=2835, pixelsPerUnitYAxis=2835, unitSpecifier=meter", metadata.get("pHYs")); assertEquals("3", metadata.get("Chroma NumChannels")); assertEquals("1", metadata.get("Compression NumProgressiveScans")); assertEquals("RGB", metadata.get("Chroma ColorSpaceType")); assertEquals("keyword=Comment, value=Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership., encoding=ISO-8859-1, compression=none", metadata.get("Text TextEntry")); assertEquals("PixelInterleaved", metadata.get("Data PlanarConfiguration")); assertEquals("width=100, height=75, bitDepth=8, colorType=RGB, compressionMethod=deflate, filterMethod=adaptive, interlaceMethod=none", metadata.get("IHDR")); assertEquals("true", metadata.get("Chroma BlackIsZero")); assertEquals("year=2008, month=5, day=6, hour=6, minute=18, second=47", metadata.get("Document ImageModificationTime")); assertEquals("image/png", metadata.get("Content-Type")); assertEquals("100", metadata.get(Metadata.IMAGE_WIDTH)); assertEquals("75", metadata.get(Metadata.IMAGE_LENGTH)); assertEquals("8 8 8", metadata.get(Metadata.BITS_PER_SAMPLE)); }
@Test public void testJBIG2() throws Exception { Metadata metadata = new Metadata(); metadata.set(Metadata.CONTENT_TYPE, "image/x-jbig2"); try (InputStream stream = getClass().getResourceAsStream("/test-documents/testJBIG2.jb2")) { parser.parse(stream, new DefaultHandler(), metadata, new ParseContext()); } assertEquals("78", metadata.get("height")); assertEquals("328", metadata.get("width")); assertEquals("image/x-jbig2", metadata.get("Content-Type")); }