Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/shared/DoubleUtils.java @ 4215:c179cd02177d
Logout the current user
Add code to the logout button to remove the current user from the session and to
redirect the browser window to the login page.
Part of flys/issue916 (Logout: "Abmelden" Knopf mit Funktion belegen)
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Tue, 23 Oct 2012 09:59:16 +0200 |
parents | 51ed89b754ae |
children |
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package de.intevation.flys.client.shared; public final class DoubleUtils { public static final String DEFAULT_DELIM = " "; private DoubleUtils() { } public static Double getDouble(String value) { try { return Double.valueOf(value); } catch (NumberFormatException nfe) { // do nothing } return null; } public static double[] getMinMax(String value) { return getMinMax(value, DEFAULT_DELIM); } public static double[] getMinMax(String value, String delim) { if (value == null) { return null; } String[] values = value.split(delim); int len = values != null ? values.length : 0; double[] mm = new double[] { Double.MAX_VALUE, -Double.MAX_VALUE }; for (int i = 0; i < len; i++) { Double d = getDouble(values[i]); if (d != null) { mm[0] = mm[0] < d ? mm[0] : d; mm[1] = mm[1] > d ? mm[1] : d; } } return mm[0] != Double.MAX_VALUE && mm[1] != -Double.MAX_VALUE ? mm : null; } /** toIndex is not inclusive, fromIndex is. */ static void fill(double[] array, int fromIndex, int toIndex, double val) { for (int i = fromIndex; i < toIndex; i++) { array[i] = val; } } /** @see java.util.Arrays.copyOf */ public static double[] copyOf(double[] toCopy, int newLen) { double[] nArray = new double[newLen]; if (toCopy == null) { fill(nArray, 0, nArray.length, 0d); return nArray; } int goTo = (newLen < toCopy.length) ? newLen : toCopy.length; for (int i = 0; i < goTo; i++) { nArray[i] = toCopy[i]; } fill (nArray, goTo, nArray.length, 0d); return nArray; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :