Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/utils/DoubleValidator.java @ 4241:49cb65d5932d

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Improved the historical discharge calculation. The calculation now creates new HistoricalWQKms (new subclass of WQKms). Those WQKms are used to create new facets from (new) type 'HistoricalDischargeCurveFacet'. The chart generator is improved to support those facets.
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 24 Oct 2012 14:34:35 +0200
parents 24e9b5eb83f8
children
rev   line source
1504
02a9104c0451 Implemented the validators more object oriented.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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1 package de.intevation.flys.client.client.utils;
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2
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3 import java.util.Map;
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5 import com.google.gwt.core.client.GWT;
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6 import com.google.gwt.i18n.client.NumberFormat;
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7
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8 import com.smartgwt.client.widgets.form.fields.FormItem;
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9
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10 import de.intevation.flys.client.client.FLYSConstants;
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12 /**
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13 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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14 */
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15 public class DoubleValidator implements Validator {
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16
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17 /** The interface that provides i18n messages. */
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18 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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20
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21 /** Statically determine doubility of String value. */
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22 public static boolean isDouble(Object obj) {
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23 if (obj == null) {
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24 return false;
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25 }
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26
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27 boolean valid = true;
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28 String v = obj.toString();
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29
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30 NumberFormat f = NumberFormat.getDecimalFormat();
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31
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32 try {
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33 if (v == null) {
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34 throw new NumberFormatException("empty");
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35 }
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36
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37 double value = f.parse(v);
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38 }
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39 catch (NumberFormatException nfe) {
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40 valid = false;
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41 }
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42 return valid;
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a30d77d86386 Removed trailing whitespace
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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43
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44 }
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45
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24e9b5eb83f8 Cosmetics.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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46
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Raimund Renkert <raimund.renkert@intevation.de>
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47 /**
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48 * @return true if items value can be converted to double, if false,
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49 * expect error message in \param errors map.
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50 */
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51 public boolean validate(FormItem item, Map errors) {
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52 boolean valid = true;
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53
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4f4d29404dba Filter the helper input tables using the range filter.
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54 if(item.getValue() == null) {
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55 return false;
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56 }
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57 String v = item.getValue().toString();
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58
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59 NumberFormat f = NumberFormat.getDecimalFormat();
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60
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61 try {
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62 if (v == null) {
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63 throw new NumberFormatException("empty");
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64 }
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65
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66 double value = f.parse(v);
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67
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68 errors.remove(item.getFieldName());
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69 }
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70 catch (NumberFormatException nfe) {
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71 errors.put(item.getFieldName(), MSG.wrongFormat());
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72
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73 item.focusInItem();
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74
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75 valid = false;
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76 }
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77 return valid;
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78 }
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79 }
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80 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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81
http://dive4elements.wald.intevation.org