package be.nikiroo.utils;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
import java.util.Map.Entry;
import java.util.regex.Pattern;
+import java.util.zip.GZIPInputStream;
+import java.util.zip.GZIPOutputStream;
import org.unbescape.html.HtmlEscape;
import org.unbescape.html.HtmlEscapeLevel;
import org.unbescape.html.HtmlEscapeType;
+import be.nikiroo.utils.streams.Base64InputStream;
+
/**
* This class offer some utilities based around {@link String}s.
*
/**
* Zip the data and then encode it into Base64.
*
- * @deprecated use {@link StringUtils#base64(byte[], boolean)} with the
- * correct parameter instead
- *
* @param data
* the data
*
* @return the Base64 zipped version
+ *
+ * @throws IOException
+ * in case of I/O error
*/
- @Deprecated
- public static String zip64(String data) {
+ public static String zip64s(String data) throws IOException {
try {
- return Base64.encodeBytes(data.getBytes("UTF-8"), Base64.GZIP);
- } catch (IOException e) {
+ return zip64(data.getBytes("UTF-8"));
+ } catch (UnsupportedEncodingException e) {
+ // All conforming JVM are required to support UTF-8
e.printStackTrace();
return null;
}
}
/**
- * Unconvert from Base64 then unzip the content.
- *
- * @deprecated use {@link StringUtils#unbase64s(String, boolean)} with the
- * correct parameter instead
+ * Zip the data and then encode it into Base64.
*
* @param data
- * the data in Base64 format
+ * the data
*
- * @return the raw data
+ * @return the Base64 zipped version
*
* @throws IOException
* in case of I/O error
*/
- @Deprecated
- public static String unzip64(String data) throws IOException {
- return new String(Base64.decode(data, Base64.GZIP), "UTF-8");
+ public static String zip64(byte[] data) throws IOException {
+ // 1. compress
+ ByteArrayOutputStream bout = new ByteArrayOutputStream();
+ try {
+ OutputStream out = new GZIPOutputStream(bout);
+ try {
+ out.write(data);
+ } finally {
+ out.close();
+ }
+ } finally {
+ data = bout.toByteArray();
+ bout.close();
+ }
+
+ // 2. base64
+ InputStream in = new ByteArrayInputStream(data);
+ try {
+ in = new Base64InputStream(in, true);
+ return new String(IOUtils.toByteArray(in), "UTF-8");
+ } finally {
+ in.close();
+ }
}
/**
- * Convert the given data to Base64 format.
+ * Unconvert from Base64 then unzip the content, which is assumed to be a
+ * String.
*
* @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
+ * the data in Base64 format
*
- * @return the Base64 {@link String} representation of the data
+ * @return the raw data
*
* @throws IOException
- * in case of I/O errors
+ * in case of I/O error
*/
- public static String base64(String data, boolean zip) throws IOException {
- return base64(data.getBytes("UTF-8"), zip);
+ public static String unzip64s(String data) throws IOException {
+ return new String(unzip64(data), "UTF-8");
}
/**
- * Convert the given data to Base64 format.
+ * Unconvert from Base64 then unzip the content.
*
* @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
+ * the data in Base64 format
*
- * @return the Base64 {@link String} representation of the data
+ * @return the raw data
*
* @throws IOException
- * in case of I/O errors
+ * in case of I/O error
*/
- public static String base64(byte[] data, boolean zip) throws IOException {
- return Base64.encodeBytes(data, zip ? Base64.GZIP : Base64.NO_OPTIONS);
+ public static byte[] unzip64(String data) throws IOException {
+ InputStream in = new Base64InputStream(new ByteArrayInputStream(
+ data.getBytes("UTF-8")), false);
+ try {
+ in = new GZIPInputStream(in);
+ return IOUtils.toByteArray(in);
+ } finally {
+ in.close();
+ }
}
/**
*
* @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 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;
+ public static String base64(String data) throws IOException {
+ return base64(data.getBytes("UTF-8"));
}
/**
*
* @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);
+ public static String base64(byte[] data) throws IOException {
+ Base64InputStream in = new Base64InputStream(new ByteArrayInputStream(
+ data), true);
+ try {
+ return new String(IOUtils.toByteArray(in), "UTF-8");
+ } finally {
+ in.close();
}
-
- 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
- *
- * @throws IOException
- * in case of I/O errors
- */
- public static byte[] unbase64(String data, boolean zip) throws IOException {
- return Base64
- .decode(data, zip ? Base64.NO_OPTIONS : Base64.DONT_GUNZIP);
- }
-
- /**
- * 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 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);
+ public static byte[] unbase64(String data) throws IOException {
+ Base64InputStream in = new Base64InputStream(new ByteArrayInputStream(
+ data.getBytes("UTF-8")), false);
+ try {
+ return IOUtils.toByteArray(in);
+ } finally {
+ in.close();
}
-
- 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
*
* @throws IOException
* in case of I/O errors
*/
- public static String unbase64s(String data, boolean zip) throws IOException {
- return new String(unbase64(data, zip), "UTF-8");
- }
-
- /**
- * 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");
+ public static String unbase64s(String data) throws IOException {
+ return new String(unbase64(data), "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>
- * Example:
+ * <p>
+ * Examples:
* <ul>
- * <li><tt>8765</tt> becomes "8k"</li>
- * <li><tt>998765</tt> becomes "998k"</li>
- * <li><tt>12987364</tt> becomes "12M"</li>
+ * <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
* @return the display value
*/
public static String formatNumber(long value) {
- return formatNumber(value, true);
+ 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>
- * Example:
+ * Examples (assuming decimalPositions = 1):
* <ul>
- * <li><tt>8765</tt> becomes "8k"</li>
- * <li><tt>998765</tt> becomes "998k"</li>
- * <li><tt>12987364</tt> becomes "12M"</li>
+ * <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 strict
- * TRUE if you want any value equals or greater than 1000 to use
- * the "k" suffix; FALSE if you want to go a bit higher and only
- * use "k" for values equal or greater than 4000
+ * @param decimalPositions
+ * the number of decimal positions to keep
*
* @return the display value
*/
- public static String formatNumber(long value, boolean strict) {
- if (value >= 1000000l) {
- return Long.toString(value / 1000000l) + "M";
+ 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";
}
- if ((strict && value >= 1000l) || (!strict && value >= 4000l)) {
- return Long.toString(value / 1000l) + "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 Long.toString(value);
+ return count;
}
/**
git://git.nikiroo.be / nikiroo-utils.git / blobdiff