Version 4.6.2

[nikiroo-utils.git] / src / be / nikiroo / utils / StringUtils.java

diff --git a/src/be/nikiroo/utils/StringUtils.java b/src/be/nikiroo/utils/StringUtils.java
index 9acf3a1fd2a72d400168ba74ce515915a7e7fae7..1ee9ac4b569001fda8036815fe8a43277e8e18ef 100644 (file)
--- a/src/be/nikiroo/utils/StringUtils.java
+++ b/src/be/nikiroo/utils/StringUtils.java
@@ -799,11 +799,13 @@ public class StringUtils {
         * 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
@@ -812,39 +814,64 @@ public class StringUtils {
         * @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(value);
+               return Long.toString(userValue) + deci + suffix;
        }
 
        /**
@@ -853,7 +880,7 @@ public class StringUtils {
         * the full value.
         * <p>
         * Of course, the conversion to and from display form is lossy (example:
-        * <tt>6870</tt> to "6k" to <tt>6000</tt>).
+        * <tt>6870</tt> to "6.5k" to <tt>6500</tt>).
         * 
         * @param value
         *            the value in display form with possible "M" and "k" suffixes,
@@ -871,7 +898,7 @@ public class StringUtils {
         * the full value.
         * <p>
         * Of course, the conversion to and from display form is lossy (example:
-        * <tt>6870</tt> to "6k" to <tt>6000</tt>).
+        * <tt>6870</tt> to "6.5k" to <tt>6500</tt>).
         * 
         * @param value
         *            the value in display form with possible "M" and "k" suffixes,
@@ -885,19 +912,33 @@ public class StringUtils {
        public static long toNumber(String value, long def) {
                long count = def;
                if (value != null) {
+                       value = value.trim().toLowerCase();
                        try {
-                               if (value.toLowerCase().endsWith("m")) {
-                                       count = Long.parseLong(value.substring(0,
-                                                       value.length() - 1).trim());
-                                       count *= 1000000;
-                               } else if (value.toLowerCase().endsWith("k")) {
-                                       count = Long.parseLong(value.substring(0,
-                                                       value.length() - 1).trim());
-                                       count *= 1000;
-                               } else {
-                                       count = Long.parseLong(value);
+                               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];
                                }
-                       } catch (NumberFormatException pe) {
+                               count = mult * Long.parseLong(value) + deci;
+                       } catch (Exception e) {
                        }
                }