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1 /*******************************************************************************
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2 * Copyright (c) 2007, 2008 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Tom Schindl<tom.schindl@bestsolution.at> - bugfix for 217940
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11 *******************************************************************************/
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12
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13 module org.eclipse.core.internal.databinding.validation.StringToDateValidator;
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14
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15 import java.lang.all;
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16
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17 import java.util.Date;
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18
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19 import org.eclipse.core.databinding.validation.IValidator;
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20 import org.eclipse.core.databinding.validation.ValidationStatus;
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21 import org.eclipse.core.internal.databinding.BindingMessages;
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22 import org.eclipse.core.internal.databinding.conversion.DateConversionSupport;
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23 import org.eclipse.core.internal.databinding.conversion.StringToDateConverter;
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24 import org.eclipse.core.runtime.IStatus;
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25 import org.eclipse.core.runtime.Status;
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26
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27 /**
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28 * @since 1.0
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29 */
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30 public class StringToDateValidator : IValidator {
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31 private final StringToDateConverter converter;
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32
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33 /**
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34 * @param converter
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35 */
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36 public this(StringToDateConverter converter) {
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37 this.converter = converter;
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38 }
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39
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40 /*
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41 * (non-Javadoc)
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42 *
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43 * @see org.eclipse.core.databinding.validation.IValidator#validate(java.lang.Object)
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44 */
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45 public IStatus validate(Object value) {
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46 if ( null !is cast(String )value && (cast(String)value).trim().length() is 0) {
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47 return Status.OK_STATUS;
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48 }
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49 Object convertedValue = converter.convert(value);
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50 //The StringToDateConverter returns null if it can't parse the date.
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51 if (convertedValue is null) {
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52 return ValidationStatus.error(getErrorMessage());
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53 }
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54
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55 return Status.OK_STATUS;
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56 }
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57
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58 /*
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59 * (non-Javadoc)
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60 *
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61 * @see org.eclipse.core.internal.databinding.validation.WrappedConverterValidator#getErrorMessage()
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62 */
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63 protected String getErrorMessage() {
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64 Date sampleDate = new Date();
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65
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66 // FIXME We need to use the information from the
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67 // converter, not use another instance of DateConversionSupport.
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68 FormatUtil util = new FormatUtil();
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69 StringBuffer samples = new StringBuffer();
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70 for (int formatterIdx = 1; formatterIdx < util.numFormatters() - 2; formatterIdx++) {
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71 samples.append('\'');
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72 samples.append(util.format(sampleDate, formatterIdx));
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73 samples.append("', "); //$NON-NLS-1$
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74 }
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75 samples.append('\'');
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76 samples.append(util.format(sampleDate, 0));
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77 samples.append('\'');
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78 return BindingMessages.getStringcast(BindingMessages.EXAMPLES) + ": " + samples + ",..."; //$NON-NLS-1$//$NON-NLS-2$
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79 }
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80
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81 private static class FormatUtil : DateConversionSupport {
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82 /*
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83 * (non-Javadoc)
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84 *
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85 * @see org.eclipse.core.internal.databinding.conversion.DateConversionSupport#numFormatters()
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86 */
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87 protected int numFormatters() {
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88 return super.numFormatters();
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89 }
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90
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91 /*
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92 * (non-Javadoc)
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93 *
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94 * @see org.eclipse.core.internal.databinding.conversion.DateConversionSupport#format(java.util.Date)
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95 */
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96 protected String format(Date date) {
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97 return super.format(date);
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98 }
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99
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100 /*
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101 * (non-Javadoc)
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102 *
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103 * @see org.eclipse.core.internal.databinding.conversion.DateConversionSupport#format(java.util.Date,
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104 * int)
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105 */
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106 protected String format(Date date, int formatterIdx) {
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107 return super.format(date, formatterIdx);
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108 }
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109 }
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110 }
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