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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 */
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12 module org.eclipse.core.internal.databinding.conversion.StringToByteConverter;
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81
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13 import org.eclipse.core.internal.databinding.conversion.StringToNumberParser;
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78
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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.internal.databinding.conversion.StringToNumberParser.ParseResult;
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18 import org.eclipse.core.internal.databinding.validation.NumberFormatConverter;
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19
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20 import com.ibm.icu.text.NumberFormat;
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21
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22 /**
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23 * @since 1.0
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24 */
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25 public class StringToByteConverter : NumberFormatConverter {
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26 private String outOfRangeMessage;
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27 private NumberFormat numberFormat;
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28 private bool primitive;
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29
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30 /**
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31 * @param numberFormat
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32 * @param toType
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33 */
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34 private this(NumberFormat numberFormat, ClassInfo toType) {
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35 super(String.classinfo, toType, numberFormat);
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36 primitive = toType.isPrimitive();
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37 this.numberFormat = numberFormat;
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38 }
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39
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40 /**
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41 * @param numberFormat
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42 * @param primitive
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43 * @return converter
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44 */
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45 public static StringToByteConverter toByte(NumberFormat numberFormat,
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46 bool primitive) {
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47 return new StringToByteConverter(numberFormat, (primitive) ? Byte.TYPE : Byte.classinfo);
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48 }
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49
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50 /**
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51 * @param primitive
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52 * @return converter
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53 */
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54 public static StringToByteConverter toByte(bool primitive) {
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55 return toByte(NumberFormat.getIntegerInstance(), primitive);
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56 }
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57
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58 /* (non-Javadoc)
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59 * @see org.eclipse.core.databinding.conversion.IConverter#convert(java.lang.Object)
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60 */
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61 public Object convert(Object fromObject) {
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62 ParseResult result = StringToNumberParser.parse(fromObject,
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63 numberFormat, primitive);
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64
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65 if (result.getPosition() !is null) {
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66 // this shouldn't happen in the pipeline as validation should catch
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67 // it but anyone can call convert so we should return a properly
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68 // formatted message in an exception
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69 throw new IllegalArgumentException(StringToNumberParser
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70 .createParseErrorMessage(cast(String) fromObject, result
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71 .getPosition()));
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72 } else if (result.getNumber() is null) {
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73 // if an error didn't occur and the number is null then it's a boxed
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74 // type and null should be returned
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75 return null;
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76 }
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77
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78 if (StringToNumberParser.inByteRange(result.getNumber())) {
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79 return new Byte(result.getNumber().byteValue());
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80 }
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81
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82 synchronized (this) {
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83 if (outOfRangeMessage is null) {
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84 outOfRangeMessage = StringToNumberParser
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85 .createOutOfRangeMessage(new Bytecast(Byte.MIN_VALUE), new Bytecast(Byte.MAX_VALUE), numberFormat);
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86 }
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87
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88 throw new IllegalArgumentException(outOfRangeMessage);
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89 }
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90 }
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91 }
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