X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;ds=sidebyside;f=src%2Fbe%2Fnikiroo%2Futils%2FStringUtils.java;h=af69845b1a6c416f55e162b506c49b7ad2d938cf;hb=e570f7eb0843d1074c3fc46dd759125715d68df0;hp=ed3c630e94b076d9e1a6d32fe0a7016130530af0;hpb=72c32e8891f0964080f957fb6f4ff332b2ca203f;p=nikiroo-utils.git diff --git a/src/be/nikiroo/utils/StringUtils.java b/src/be/nikiroo/utils/StringUtils.java index ed3c630..af69845 100644 --- a/src/be/nikiroo/utils/StringUtils.java +++ b/src/be/nikiroo/utils/StringUtils.java @@ -1,8 +1,6 @@ package be.nikiroo.utils; import java.awt.Image; -import java.awt.geom.AffineTransform; -import java.awt.image.AffineTransformOp; import java.awt.image.BufferedImage; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; @@ -16,6 +14,7 @@ import java.text.Normalizer.Form; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; +import java.util.Scanner; import java.util.regex.Pattern; import javax.imageio.ImageIO; @@ -188,15 +187,15 @@ public class StringUtils { * Convert between time as a {@link String} to milliseconds in a "static" * way (to exchange data over the wire, for instance). * - * @param time + * @param displayTime * the time as a {@link String} * * @return the time in milliseconds */ - static public long toTime(String display) { + static public long toTime(String displayTime) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); try { - return sdf.parse(display).getTime(); + return sdf.parse(displayTime).getTime(); } catch (ParseException e) { return -1; } @@ -215,10 +214,33 @@ public class StringUtils { * in case of IO error */ static public String fromImage(BufferedImage image) throws IOException { + return fromImage(image, null); + } + + /** + * Convert the given {@link Image} object into a Base64 representation of + * the same {@link Image}. object. + * + * @param image + * the {@link Image} object to convert + * @param format + * the image format to use to serialise it (default is PNG) + * + * @return the Base64 representation + * + * @throws IOException + * in case of IO error + */ + static public String fromImage(BufferedImage image, String format) + throws IOException { + if (format == null) { + format = "png"; + } + String imageString = null; ByteArrayOutputStream out = new ByteArrayOutputStream(); - ImageIO.write(image, "jpeg", out); + ImageIO.write(image, format, out); byte[] imageBytes = out.toByteArray(); imageString = new String(Base64.encodeBytes(imageBytes)); @@ -229,11 +251,11 @@ public class StringUtils { } /** - * Convert the given {@link File} image into a Base64 representation of the - * same {@link File}. + * Convert the given image into a Base64 representation of the same + * {@link File}. * - * @param file - * the {@link File} image to convert + * @param in + * the image to convert * * @return the Base64 representation * @@ -274,95 +296,7 @@ public class StringUtils { static public BufferedImage toImage(String b64data) throws IOException { ByteArrayInputStream in = new ByteArrayInputStream( Base64.decode(b64data)); - return toImage(in); - } - - /** - * Convert the given {@link InputStream} (which must allow calls to - * {@link InputStream#reset()}) into an {@link Image} object. - * - * @param in - * the 'resetable' {@link InputStream} - * - * @return the {@link Image} object - * - * @throws IOException - * in case of IO error - */ - static public BufferedImage toImage(InputStream in) throws IOException { - int orientation; - try { - orientation = getExifTransorm(in); - } catch (Exception e) { - // no EXIF transform, ok - orientation = -1; - } - - in.reset(); - BufferedImage image = ImageIO.read(in); - - if (image == null) { - throw new IOException("Failed to convert input to image"); - } - - // Note: this code has been found on internet; - // thank you anonymous coder. - int width = image.getWidth(); - int height = image.getHeight(); - AffineTransform affineTransform = new AffineTransform(); - - switch (orientation) { - case 1: - break; - case 2: // Flip X - affineTransform.scale(-1.0, 1.0); - affineTransform.translate(-width, 0); - break; - case 3: // PI rotation - affineTransform.translate(width, height); - affineTransform.rotate(Math.PI); - break; - case 4: // Flip Y - affineTransform.scale(1.0, -1.0); - affineTransform.translate(0, -height); - break; - case 5: // - PI/2 and Flip X - affineTransform.rotate(-Math.PI / 2); - affineTransform.scale(-1.0, 1.0); - break; - case 6: // -PI/2 and -width - affineTransform.translate(height, 0); - affineTransform.rotate(Math.PI / 2); - break; - case 7: // PI/2 and Flip - affineTransform.scale(-1.0, 1.0); - affineTransform.translate(-height, 0); - affineTransform.translate(0, width); - affineTransform.rotate(3 * Math.PI / 2); - break; - case 8: // PI / 2 - affineTransform.translate(0, width); - affineTransform.rotate(3 * Math.PI / 2); - break; - default: - affineTransform = null; - break; - } - - if (affineTransform != null) { - AffineTransformOp affineTransformOp = new AffineTransformOp( - affineTransform, AffineTransformOp.TYPE_BILINEAR); - - BufferedImage transformedImage = new BufferedImage(height, width, - image.getType()); - transformedImage = affineTransformOp - .filter(image, transformedImage); - - image = transformedImage; - } - // - - return image; + return IOUtils.toImage(in); } /** @@ -393,155 +327,6 @@ public class StringUtils { } } - /** - * Return the EXIF transformation flag of this image if any. - * - *

- * Note: this code has been found on internet; thank you anonymous coder. - *

- * - * @param in - * the data {@link InputStream} - * - * @return the transformation flag if any - * - * @throws IOException - * in case of IO error - */ - static private int getExifTransorm(InputStream in) throws IOException { - int[] exif_data = new int[100]; - int set_flag = 0; - int is_motorola = 0; - - /* Read File head, check for JPEG SOI + Exif APP1 */ - for (int i = 0; i < 4; i++) - exif_data[i] = in.read(); - - if (exif_data[0] != 0xFF || exif_data[1] != 0xD8 - || exif_data[2] != 0xFF || exif_data[3] != 0xE1) - return -2; - - /* Get the marker parameter length count */ - int length = (in.read() << 8 | in.read()); - - /* Length includes itself, so must be at least 2 */ - /* Following Exif data length must be at least 6 */ - if (length < 8) - return -1; - length -= 8; - /* Read Exif head, check for "Exif" */ - for (int i = 0; i < 6; i++) - exif_data[i] = in.read(); - - if (exif_data[0] != 0x45 || exif_data[1] != 0x78 - || exif_data[2] != 0x69 || exif_data[3] != 0x66 - || exif_data[4] != 0 || exif_data[5] != 0) - return -1; - - /* Read Exif body */ - length = length > exif_data.length ? exif_data.length : length; - for (int i = 0; i < length; i++) - exif_data[i] = in.read(); - - if (length < 12) - return -1; /* Length of an IFD entry */ - - /* Discover byte order */ - if (exif_data[0] == 0x49 && exif_data[1] == 0x49) - is_motorola = 0; - else if (exif_data[0] == 0x4D && exif_data[1] == 0x4D) - is_motorola = 1; - else - return -1; - - /* Check Tag Mark */ - if (is_motorola == 1) { - if (exif_data[2] != 0) - return -1; - if (exif_data[3] != 0x2A) - return -1; - } else { - if (exif_data[3] != 0) - return -1; - if (exif_data[2] != 0x2A) - return -1; - } - - /* Get first IFD offset (offset to IFD0) */ - int offset; - if (is_motorola == 1) { - if (exif_data[4] != 0) - return -1; - if (exif_data[5] != 0) - return -1; - offset = exif_data[6]; - offset <<= 8; - offset += exif_data[7]; - } else { - if (exif_data[7] != 0) - return -1; - if (exif_data[6] != 0) - return -1; - offset = exif_data[5]; - offset <<= 8; - offset += exif_data[4]; - } - if (offset > length - 2) - return -1; /* check end of data segment */ - - /* Get the number of directory entries contained in this IFD */ - int number_of_tags; - if (is_motorola == 1) { - number_of_tags = exif_data[offset]; - number_of_tags <<= 8; - number_of_tags += exif_data[offset + 1]; - } else { - number_of_tags = exif_data[offset + 1]; - number_of_tags <<= 8; - number_of_tags += exif_data[offset]; - } - if (number_of_tags == 0) - return -1; - offset += 2; - - /* Search for Orientation Tag in IFD0 */ - for (;;) { - if (offset > length - 12) - return -1; /* check end of data segment */ - /* Get Tag number */ - int tagnum; - if (is_motorola == 1) { - tagnum = exif_data[offset]; - tagnum <<= 8; - tagnum += exif_data[offset + 1]; - } else { - tagnum = exif_data[offset + 1]; - tagnum <<= 8; - tagnum += exif_data[offset]; - } - if (tagnum == 0x0112) - break; /* found Orientation Tag */ - if (--number_of_tags == 0) - return -1; - offset += 12; - } - - /* Get the Orientation value */ - if (is_motorola == 1) { - if (exif_data[offset + 8] != 0) - return -1; - set_flag = exif_data[offset + 9]; - } else { - if (exif_data[offset + 9] != 0) - return -1; - set_flag = exif_data[offset + 8]; - } - if (set_flag > 8) - return -1; - - return set_flag; - } - /** * Remove the HTML content from the given input, and un-html-ize the rest. * @@ -564,7 +349,9 @@ public class StringUtils { } } - return HtmlEscape.unescapeHtml(builder.toString()); + char nbsp = ' '; // non-breakable space (a special char) + char space = ' '; + return HtmlEscape.unescapeHtml(builder.toString()).replace(nbsp, space); } /** @@ -603,4 +390,26 @@ public class StringUtils { HtmlEscapeType.HTML4_NAMED_REFERENCES_DEFAULT_TO_HEXA, HtmlEscapeLevel.LEVEL_1_ONLY_MARKUP_SIGNIFICANT); } + + public static String zip64(String data) { + try { + return Base64.encodeBytes(data.getBytes(), Base64.GZIP); + } catch (IOException e) { + e.printStackTrace(); + return null; + } + } + + public static String unzip64(String data) throws IOException { + ByteArrayInputStream in = new ByteArrayInputStream(Base64.decode(data, + Base64.GZIP)); + + Scanner scan = new Scanner(in); + scan.useDelimiter("\\A"); + try { + return scan.next(); + } finally { + scan.close(); + } + } }