package be.nikiroo.utils;
-import java.io.ByteArrayInputStream;
import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Date;
import java.util.List;
import java.util.Map.Entry;
-import java.util.Scanner;
import java.util.regex.Pattern;
import org.unbescape.html.HtmlEscape;
@Deprecated
public static String zip64(String data) {
try {
- return Base64.encodeBytes(data.getBytes(), Base64.GZIP);
+ return Base64.encodeBytes(data.getBytes("UTF-8"), Base64.GZIP);
} catch (IOException e) {
e.printStackTrace();
return null;
*/
@Deprecated
public static String unzip64(String data) throws IOException {
- ByteArrayInputStream in = new ByteArrayInputStream(Base64.decode(data,
- Base64.GZIP));
+ return new String(Base64.decode(data, Base64.GZIP), "UTF-8");
+ }
- Scanner scan = new Scanner(in);
- scan.useDelimiter("\\A");
- try {
- return scan.next();
- } finally {
- scan.close();
- }
+ /**
+ * Convert the given data to Base64 format.
+ *
+ * @param data
+ * the data to convert
+ * @param zip
+ * TRUE to also compress the data in GZIP format; remember that
+ * compressed and not-compressed content are different; you need
+ * to know which is which when decoding
+ *
+ * @return the Base64 {@link String} representation of the data
+ *
+ * @throws IOException
+ * in case of I/O errors
+ */
+ public static String base64(String data, boolean zip) throws IOException {
+ return base64(data.getBytes("UTF-8"), zip);
}
/**
}
/**
- * Unonvert the given data from Base64 format back to a raw array of bytes.
+ * Convert the given data to Base64 format.
*
* @param data
- * the data to unconvert
+ * the data to convert
* @param zip
* TRUE to also uncompress the data from a GZIP format; take care
* about this flag, as it could easily cause errors in the
* returned content or an {@link IOException}
+ * @param breakLines
+ * TRUE to break lines on every 76th character
+ *
+ * @return the Base64 {@link String} representation of the data
+ *
+ * @throws IOException
+ * in case of I/O errors
+ */
+ public static OutputStream base64(OutputStream data, boolean zip,
+ boolean breakLines) throws IOException {
+ OutputStream out = new Base64.OutputStream(data,
+ breakLines ? Base64.DO_BREAK_LINES & Base64.ENCODE
+ : Base64.ENCODE);
+
+ if (zip) {
+ out = new java.util.zip.GZIPOutputStream(out);
+ }
+
+ return out;
+ }
+
+ /**
+ * Convert the given data to Base64 format.
+ *
+ * @param data
+ * the data to convert
+ * @param zip
+ * TRUE to also uncompress the data from a GZIP format; take care
+ * about this flag, as it could easily cause errors in the
+ * returned content or an {@link IOException}
+ * @param breakLines
+ * TRUE to break lines on every 76th character
+ *
+ * @return the Base64 {@link String} representation of the data
+ *
+ * @throws IOException
+ * in case of I/O errors
+ */
+ public static InputStream base64(InputStream data, boolean zip,
+ boolean breakLines) throws IOException {
+ if (zip) {
+ data = new java.util.zip.GZIPInputStream(data);
+ }
+
+ return new Base64.InputStream(data, breakLines ? Base64.DO_BREAK_LINES
+ & Base64.ENCODE : Base64.ENCODE);
+ }
+
+ /**
+ * Unconvert the given data from Base64 format back to a raw array of bytes.
+ * <p>
+ * Will automatically detect zipped data and also uncompress it before
+ * returning, unless ZIP is false.
+ *
+ * @param data
+ * the data to unconvert
+ * @param zip
+ * TRUE to also uncompress the data from a GZIP format
+ * automatically; if set to FALSE, zipped data can be returned
*
* @return the raw data represented by the given Base64 {@link String},
* optionally compressed with GZIP
* in case of I/O errors
*/
public static byte[] unbase64(String data, boolean zip) throws IOException {
- return Base64.decode(data, zip ? Base64.GZIP : Base64.NO_OPTIONS);
+ return Base64
+ .decode(data, zip ? Base64.NO_OPTIONS : Base64.DONT_GUNZIP);
}
/**
- * Unonvert the given data from Base64 format back to a {@link String}.
+ * Unconvert the given data from Base64 format back to a raw array of bytes.
*
* @param data
* the data to unconvert
* about this flag, as it could easily cause errors in the
* returned content or an {@link IOException}
*
+ * @return the raw data represented by the given Base64 {@link String}
+ *
+ * @throws IOException
+ * in case of I/O errors
+ */
+ public static OutputStream unbase64(OutputStream data, boolean zip)
+ throws IOException {
+ OutputStream out = new Base64.OutputStream(data, Base64.DECODE);
+
+ if (zip) {
+ out = new java.util.zip.GZIPOutputStream(out);
+ }
+
+ return out;
+ }
+
+ /**
+ * Unconvert the given data from Base64 format back to a raw array of bytes.
+ *
+ * @param data
+ * the data to unconvert
+ * @param zip
+ * TRUE to also uncompress the data from a GZIP format; take care
+ * about this flag, as it could easily cause errors in the
+ * returned content or an {@link IOException}
+ *
+ * @return the raw data represented by the given Base64 {@link String}
+ *
+ * @throws IOException
+ * in case of I/O errors
+ */
+ public static InputStream unbase64(InputStream data, boolean zip)
+ throws IOException {
+ if (zip) {
+ data = new java.util.zip.GZIPInputStream(data);
+ }
+
+ return new Base64.InputStream(data, Base64.DECODE);
+ }
+
+ /**
+ * Unconvert the given data from Base64 format back to a raw array of bytes.
+ * <p>
+ * Will automatically detect zipped data and also uncompress it before
+ * returning, unless ZIP is false.
+ *
+ * @param data
+ * the data to unconvert
+ * @param offset
+ * the offset at which to start taking the data (do not take the
+ * data before it into account)
+ * @param count
+ * the number of bytes to take into account (do not process after
+ * this number of bytes has been processed)
+ * @param zip
+ * TRUE to also uncompress the data from a GZIP format
+ * automatically; if set to FALSE, zipped data can be returned
+ *
+ * @return the raw data represented by the given Base64 {@link String}
+ *
+ * @throws IOException
+ * in case of I/O errors
+ */
+ public static byte[] unbase64(byte[] data, int offset, int count,
+ boolean zip) throws IOException {
+ return Base64.niki_decode(data, offset, count, zip ? Base64.NO_OPTIONS
+ : Base64.DONT_GUNZIP);
+ }
+
+ /**
+ * Unonvert the given data from Base64 format back to a {@link String}.
+ * <p>
+ * Will automatically detect zipped data and also uncompress it before
+ * returning, unless ZIP is false.
+ *
+ * @param data
+ * the data to unconvert
+ * @param zip
+ * TRUE to also uncompress the data from a GZIP format
+ * automatically; if set to FALSE, zipped data can be returned
+ *
* @return the {@link String} represented by the given Base64 {@link String}
* , optionally compressed with GZIP
*
* in case of I/O errors
*/
public static String unbase64s(String data, boolean zip) throws IOException {
- ByteArrayInputStream in = new ByteArrayInputStream(unbase64(data, zip));
+ return new String(unbase64(data, zip), "UTF-8");
+ }
- Scanner scan = new Scanner(in);
- scan.useDelimiter("\\A");
- try {
- return scan.next();
- } finally {
- scan.close();
+ /**
+ * Unconvert the given data from Base64 format back into a {@link String}.
+ *
+ * @param data
+ * the data to unconvert
+ * @param offset
+ * the offset at which to start taking the data (do not take the
+ * data before it into account)
+ * @param count
+ * the number of bytes to take into account (do not process after
+ * this number of bytes has been processed)
+ * @param zip
+ * TRUE to also uncompress the data from a GZIP format; take care
+ * about this flag, as it could easily cause errors in the
+ * returned content or an {@link IOException}
+ *
+ * @return the {@link String} represented by the given Base64 {@link String}
+ * , optionally compressed with GZIP
+ *
+ * @throws IOException
+ * in case of I/O errors
+ */
+ public static String unbase64s(byte[] data, int offset, int count,
+ boolean zip) throws IOException {
+ return new String(unbase64(data, offset, count, zip), "UTF-8");
+ }
+
+ /**
+ * Return a display {@link String} for the given value, which can be
+ * suffixed with "k" or "M" depending upon the number, if it is big enough.
+ * <p>
+ * <p>
+ * Examples:
+ * <ul>
+ * <li><tt>8 765</tt> becomes "8k"</li>
+ * <li><tt>998 765</tt> becomes "998k"</li>
+ * <li><tt>12 987 364</tt> becomes "12M"</li>
+ * <li><tt>5 534 333 221</tt> becomes "5G"</li>
+ * </ul>
+ *
+ * @param value
+ * the value to convert
+ *
+ * @return the display value
+ */
+ public static String formatNumber(long value) {
+ return formatNumber(value, 0);
+ }
+
+ /**
+ * Return a display {@link String} for the given value, which can be
+ * suffixed with "k" or "M" depending upon the number, if it is big enough.
+ * <p>
+ * Examples (assuming decimalPositions = 1):
+ * <ul>
+ * <li><tt>8 765</tt> becomes "8.7k"</li>
+ * <li><tt>998 765</tt> becomes "998.7k"</li>
+ * <li><tt>12 987 364</tt> becomes "12.9M"</li>
+ * <li><tt>5 534 333 221</tt> becomes "5.5G"</li>
+ * </ul>
+ *
+ * @param value
+ * the value to convert
+ * @param decimalPositions
+ * the number of decimal positions to keep
+ *
+ * @return the display value
+ */
+ public static String formatNumber(long value, int decimalPositions) {
+ long userValue = value;
+ String suffix = "";
+ long mult = 1;
+
+ if (value >= 1000000000l) {
+ mult = 1000000000l;
+ userValue = value / 1000000000l;
+ suffix = "G";
+ } else if (value >= 1000000l) {
+ mult = 1000000l;
+ userValue = value / 1000000l;
+ suffix = "M";
+ } else if (value >= 1000l) {
+ mult = 1000l;
+ userValue = value / 1000l;
+ suffix = "k";
+ }
+
+ String deci = "";
+ if (decimalPositions > 0) {
+ deci = Long.toString(value % mult);
+ int size = Long.toString(mult).length() - 1;
+ while (deci.length() < size) {
+ deci = "0" + deci;
+ }
+
+ deci = deci.substring(0, Math.min(decimalPositions, deci.length()));
+ while (deci.length() < decimalPositions) {
+ deci += "0";
+ }
+
+ deci = "." + deci;
}
+
+ return Long.toString(userValue) + deci + suffix;
+ }
+
+ /**
+ * The reverse operation to {@link StringUtils#formatNumber(long)}: it will
+ * read a "display" number that can contain a "M" or "k" suffix and return
+ * the full value.
+ * <p>
+ * Of course, the conversion to and from display form is lossy (example:
+ * <tt>6870</tt> to "6.5k" to <tt>6500</tt>).
+ *
+ * @param value
+ * the value in display form with possible "M" and "k" suffixes,
+ * can be NULL
+ *
+ * @return the value as a number, or 0 if not possible to convert
+ */
+ public static long toNumber(String value) {
+ return toNumber(value, 0l);
+ }
+
+ /**
+ * The reverse operation to {@link StringUtils#formatNumber(long)}: it will
+ * read a "display" number that can contain a "M" or "k" suffix and return
+ * the full value.
+ * <p>
+ * Of course, the conversion to and from display form is lossy (example:
+ * <tt>6870</tt> to "6.5k" to <tt>6500</tt>).
+ *
+ * @param value
+ * the value in display form with possible "M" and "k" suffixes,
+ * can be NULL
+ * @param def
+ * the default value if it is not possible to convert the given
+ * value to a number
+ *
+ * @return the value as a number, or 0 if not possible to convert
+ */
+ public static long toNumber(String value, long def) {
+ long count = def;
+ if (value != null) {
+ value = value.trim().toLowerCase();
+ try {
+ long mult = 1;
+ if (value.endsWith("g")) {
+ value = value.substring(0, value.length() - 1).trim();
+ mult = 1000000000;
+ } else if (value.endsWith("m")) {
+ value = value.substring(0, value.length() - 1).trim();
+ mult = 1000000;
+ } else if (value.endsWith("k")) {
+ value = value.substring(0, value.length() - 1).trim();
+ mult = 1000;
+ }
+
+ long deci = 0;
+ if (value.contains(".")) {
+ String[] tab = value.split("\\.");
+ if (tab.length != 2) {
+ throw new NumberFormatException(value);
+ }
+ double decimal = Double.parseDouble("0."
+ + tab[tab.length - 1]);
+ deci = ((long) (mult * decimal));
+ value = tab[0];
+ }
+ count = mult * Long.parseLong(value) + deci;
+ } catch (Exception e) {
+ }
+ }
+
+ return count;
}
/**
git://git.nikiroo.be / nikiroo-utils.git / blobdiff