Mercurial > dive4elements > river
comparison flys-client/src/main/java/de/intevation/flys/client/client/utils/Validator.java @ 1500:2a8b5dcbe8ca
Issue 358.
Validate integer and double values in chart properties editor.
flys-client/trunk@3625 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Raimund Renkert <raimund.renkert@intevation.de> |
|---|---|
| date | Mon, 09 Jan 2012 09:17:52 +0000 |
| parents | |
| children | 02a9104c0451 |
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| 1499:0372797fc9cf | 1500:2a8b5dcbe8ca |
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| 1 package de.intevation.flys.client.client.utils; | |
| 2 import com.google.gwt.core.client.GWT; | |
| 3 import com.smartgwt.client.widgets.form.DynamicForm; | |
| 4 import com.smartgwt.client.widgets.form.fields.FormItem; | |
| 5 import com.google.gwt.i18n.client.NumberFormat; | |
| 6 import com.smartgwt.client.widgets.form.fields.events.ChangedHandler; | |
| 7 import com.smartgwt.client.widgets.form.fields.events.ChangedEvent; | |
| 8 import java.util.Map; | |
| 9 import de.intevation.flys.client.client.FLYSConstants; | |
| 10 | |
| 11 /** | |
| 12 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> | |
| 13 * | |
| 14 * This validator is used for SmartGWT FormItems. | |
| 15 * | |
| 16 * To use this validator an attribute named 'internalType' has to be set. | |
| 17 * Values for 'internalType': | |
| 18 * 'double' | |
| 19 * 'integer' | |
| 20 */ | |
| 21 public class Validator implements ChangedHandler { | |
| 22 | |
| 23 /** The interface that provides i18n messages. */ | |
| 24 protected FLYSConstants MSG = GWT.create(FLYSConstants.class); | |
| 25 | |
| 26 | |
| 27 /** | |
| 28 * | |
| 29 */ | |
| 30 public void onChanged(ChangedEvent e) { | |
| 31 FormItem item = e.getItem(); | |
| 32 DynamicForm form = e.getForm(); | |
| 33 Map errors = form.getErrors(); | |
| 34 String type = item.getAttribute("internalType"); | |
| 35 | |
| 36 if(type.equals("double")) { | |
| 37 validateFloat(item, errors); | |
| 38 form.setErrors(errors, true); | |
| 39 } | |
| 40 else if(type.equals("integer")) { | |
| 41 validateInteger(item, errors); | |
| 42 form.setErrors(errors, true); | |
| 43 } | |
| 44 else { | |
| 45 GWT.log("No Attribute 'internalType' set. Not using any validator."); | |
| 46 } | |
| 47 } | |
| 48 | |
| 49 | |
| 50 /** | |
| 51 * | |
| 52 */ | |
| 53 protected boolean validateInteger(FormItem item, Map errors) { | |
| 54 boolean valid = true; | |
| 55 | |
| 56 String v = (String) item.getValue(); | |
| 57 | |
| 58 NumberFormat f = NumberFormat.getDecimalFormat(); | |
| 59 | |
| 60 try { | |
| 61 if (v == null) { | |
| 62 throw new NumberFormatException("empty"); | |
| 63 } | |
| 64 | |
| 65 int value = Integer.parseInt(v); | |
| 66 | |
| 67 errors.remove(item.getFieldName()); | |
| 68 } | |
| 69 catch (NumberFormatException nfe) { | |
| 70 errors.put(item.getFieldName(), MSG.wrongFormat()); | |
| 71 | |
| 72 item.focusInItem(); | |
| 73 | |
| 74 valid = false; | |
| 75 } | |
| 76 return valid; | |
| 77 } | |
| 78 | |
| 79 | |
| 80 /** | |
| 81 * | |
| 82 */ | |
| 83 protected boolean validateFloat(FormItem item, Map errors) { | |
| 84 boolean valid = true; | |
| 85 | |
| 86 String v = (String) item.getValue(); | |
| 87 | |
| 88 NumberFormat f = NumberFormat.getDecimalFormat(); | |
| 89 | |
| 90 try { | |
| 91 if (v == null) { | |
| 92 throw new NumberFormatException("empty"); | |
| 93 } | |
| 94 | |
| 95 double value = f.parse(v); | |
| 96 | |
| 97 errors.remove(item.getFieldName()); | |
| 98 } | |
| 99 catch (NumberFormatException nfe) { | |
| 100 errors.put(item.getFieldName(), MSG.wrongFormat()); | |
| 101 | |
| 102 item.focusInItem(); | |
| 103 | |
| 104 valid = false; | |
| 105 } | |
| 106 return valid; | |
| 107 } | |
| 108 } | |
| 109 |