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1 /*
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2 * Copyright cast(C) 2005 db4objects Inc. http://www.db4o.com
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3 *
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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8 *
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9 * Contributors:
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10 * db4objects - Initial API and implementation
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11 * Matt Carter - Improved primitive conversion support (bug 197679)
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12 */
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13 module org.eclipse.core.internal.databinding.conversion.StringToCharacterConverter;
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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 org.eclipse.core.databinding.conversion.IConverter;
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18
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19 /**
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20 * StringToCharacterConverter.
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21 */
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22 public class StringToCharacterConverter : IConverter {
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23
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24 private final bool primitiveTarget;
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25
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26 /**
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27 *
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28 * @param primitiveTarget
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29 */
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30 public this(bool primitiveTarget) {
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31 this.primitiveTarget = primitiveTarget;
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32 }
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33
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34 /*
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35 * (non-Javadoc)
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36 *
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37 * @see org.eclipse.jface.binding.converter.IConverter#convert(java.lang.Object)
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38 */
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39 public Object convert(Object source) {
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40 if (source !is null && !( null !is cast(String)source ))
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41 throw new IllegalArgumentException(
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42 "String2Character: Expected type String, got type [" + source.getClass().getName() + "]"); //$NON-NLS-1$ //$NON-NLS-2$
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43
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44 String s = cast(String) source;
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45 if (source is null || s.equals("")) { //$NON-NLS-1$
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46 if (primitiveTarget)
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47 throw new IllegalArgumentException(
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48 "String2Character: cannot convert null/empty string to character primitive"); //$NON-NLS-1$
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49 return null;
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50 }
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51 Character result;
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52
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53 if (s.length() > 1)
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54 throw new IllegalArgumentException(
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55 "String2Character: string too long: " + s); //$NON-NLS-1$
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56
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57 try {
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58 result = new Character(s.charAt(0));
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59 } catch (Exception e) {
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60 throw new IllegalArgumentException(
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61 "String2Character: " + e.getMessage() + ": " + s); //$NON-NLS-1$ //$NON-NLS-2$
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62 }
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63
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64 return result;
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65 }
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66
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67 public Object getFromType() {
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68 return String.classinfo;
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69 }
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70
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71 public Object getToType() {
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72 return primitiveTarget ? Character.TYPE : Character.classinfo;
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73 }
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74
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75 /**
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76 * @param primitive
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77 * @return converter
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78 */
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79 public static StringToCharacterConverter toCharacter(bool primitive) {
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80 return new StringToCharacterConverter(primitive);
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81 }
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82
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83 }
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