Mercurial > projects > dwt2
view org.eclipse.core.databinding/src/org/eclipse/core/databinding/UpdateStrategy.d @ 78:0a55d2d5a946
Added file for databinding
author | Frank Benoit <benoit@tionex.de> |
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date | Tue, 14 Apr 2009 11:35:29 +0200 |
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children | 383ce7bd736b |
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/******************************************************************************* * Copyright (c) 2007, 2008 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation * Matt Carter - Bug 180392 * - Character support completed (bug 197679) *******************************************************************************/ module org.eclipse.core.databinding.UpdateStrategy; import java.lang.all; import java.math.BigDecimal; import java.math.BigInteger; import java.util.HashMap; import java.util.Map; import org.eclipse.core.databinding.conversion.IConverter; import org.eclipse.core.databinding.conversion.NumberToStringConverter; import org.eclipse.core.databinding.conversion.StringToNumberConverter; import org.eclipse.core.databinding.util.Policy; import org.eclipse.core.internal.databinding.ClassLookupSupport; import org.eclipse.core.internal.databinding.Pair; import org.eclipse.core.internal.databinding.conversion.CharacterToStringConverter; import org.eclipse.core.internal.databinding.conversion.IdentityConverter; import org.eclipse.core.internal.databinding.conversion.IntegerToStringConverter; import org.eclipse.core.internal.databinding.conversion.NumberToBigDecimalConverter; import org.eclipse.core.internal.databinding.conversion.NumberToBigIntegerConverter; import org.eclipse.core.internal.databinding.conversion.NumberToByteConverter; import org.eclipse.core.internal.databinding.conversion.NumberToDoubleConverter; import org.eclipse.core.internal.databinding.conversion.NumberToFloatConverter; import org.eclipse.core.internal.databinding.conversion.NumberToIntegerConverter; import org.eclipse.core.internal.databinding.conversion.NumberToLongConverter; import org.eclipse.core.internal.databinding.conversion.NumberToShortConverter; import org.eclipse.core.internal.databinding.conversion.ObjectToStringConverter; import org.eclipse.core.internal.databinding.conversion.StringToByteConverter; import org.eclipse.core.internal.databinding.conversion.StringToCharacterConverter; import org.eclipse.core.internal.databinding.conversion.StringToShortConverter; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import com.ibm.icu.text.NumberFormat; /** * @since 1.0 * */ /* package */class UpdateStrategy { private static final String BOOLEAN_TYPE = "java.lang.Boolean.TYPE"; //$NON-NLS-1$ private static final String SHORT_TYPE = "java.lang.Short.TYPE"; //$NON-NLS-1$ private static final String BYTE_TYPE = "java.lang.Byte.TYPE"; //$NON-NLS-1$ private static final String DOUBLE_TYPE = "java.lang.Double.TYPE"; //$NON-NLS-1$ private static final String FLOAT_TYPE = "java.lang.Float.TYPE"; //$NON-NLS-1$ private static final String INTEGER_TYPE = "java.lang.Integer.TYPE"; //$NON-NLS-1$ private static final String LONG_TYPE = "java.lang.Long.TYPE"; //$NON-NLS-1$ private static final String CHARACTER_TYPE = "java.lang.Character.TYPE"; //$NON-NLS-1$ private static Map converterMap; private static ClassInfo autoboxed(ClassInfo clazz) { if (clazz is Float.TYPE) return Float.classinfo; else if (clazz is Double.TYPE) return Double.classinfo; else if (clazz is Short.TYPE) return Short.classinfo; else if (clazz is Integer.TYPE) return Integer.classinfo; else if (clazz is Long.TYPE) return Long.classinfo; else if (clazz is Byte.TYPE) return Byte.classinfo; else if (clazz is Boolean.TYPE) return Boolean.classinfo; else if (clazz is Character.TYPE) return Character.classinfo; return clazz; } final protected void checkAssignable(Object toType, Object fromType, String errorString) { Boolean assignableFromModelToModelConverter = isAssignableFromTo( fromType, toType); if (assignableFromModelToModelConverter !is null && !assignableFromModelToModelConverter.booleanValue()) { throw new BindingException(errorString + " Expected: " + fromType + ", actual: " + toType); //$NON-NLS-1$//$NON-NLS-2$ } } /** * Tries to create a converter that can convert from values of type * fromType. Returns <code>null</code> if no converter could be created. * Either toType or modelDescription can be <code>null</code>, but not * both. * * @param fromType * @param toType * @return an IConverter, or <code>null</code> if unsuccessful */ protected IConverter createConverter(Object fromType, Object toType) { if (!( null !is cast(ClassInfo)fromType ) || !( null !is cast(ClassInfo)toType )) { return new DefaultConverter(fromType, toType); } ClassInfo toClass = cast(ClassInfo) toType; ClassInfo originalToClass = toClass; if (toClass.isPrimitive()) { toClass = autoboxed(toClass); } ClassInfo fromClass = cast(ClassInfo) fromType; ClassInfo originalFromClass = fromClass; if (fromClass.isPrimitive()) { fromClass = autoboxed(fromClass); } if (!(cast(ClassInfo) toType).isPrimitive() && toClass.isAssignableFrom(fromClass)) { return new IdentityConverter(originalFromClass, originalToClass); } if ((cast(ClassInfo) fromType).isPrimitive() && (cast(ClassInfo) toType).isPrimitive() && fromType.equals(toType)) { return new IdentityConverter(originalFromClass, originalToClass); } Map converterMap = getConverterMap(); ClassInfo[] supertypeHierarchyFlattened = ClassLookupSupport .getTypeHierarchyFlattened(fromClass); for (int i = 0; i < supertypeHierarchyFlattened.length; i++) { ClassInfo currentFromClass = supertypeHierarchyFlattened[i]; if (currentFromClass is toType) { // converting to toType is just a widening return new IdentityConverter(fromClass, toClass); } Pair key = new Pair(getKeyForClass(fromType, currentFromClass), getKeyForClass(toType, toClass)); Object converterOrClassname = converterMap.get(key); if ( null !is cast(IConverter)converterOrClassname ) { return cast(IConverter) converterOrClassname; } else if ( null !is cast(String)converterOrClassname ) { String classname = cast(String) converterOrClassname; ClassInfo converterClass; try { converterClass = ClassInfo.forName(classname); IConverter result = cast(IConverter) converterClass .newInstance(); converterMap.put(key, result); return result; } catch (Exception e) { Policy .getLog() .log( new Status( IStatus.ERROR, Policy.JFACE_DATABINDING, 0, "Error while instantiating default converter", e)); //$NON-NLS-1$ } } } // Since we found no converter yet, try a "downcast" converter; // the IdentityConverter will automatically check the actual types at // runtime. if (fromClass.isAssignableFrom(toClass)) { return new IdentityConverter(originalFromClass, originalToClass); } return new DefaultConverter(fromType, toType); } private synchronized static Map getConverterMap() { // using string-based lookup avoids loading of too many classes if (converterMap is null) { // NumberFormat to be shared across converters for the formatting of // integer values NumberFormat integerFormat = NumberFormat.getIntegerInstance(); // NumberFormat to be shared across converters for formatting non // integer values NumberFormat numberFormat = NumberFormat.getNumberInstance(); converterMap = new HashMap(); // Standard and Boxed Types converterMap .put( new Pair("java.util.Date", "java.lang.String"), "org.eclipse.core.internal.databinding.conversion.DateToStringConverter"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ converterMap .put( new Pair("java.lang.String", "java.lang.Boolean"), "org.eclipse.core.internal.databinding.conversion.StringToBooleanConverter"); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ converterMap .put( new Pair("java.lang.String", "java.lang.Byte"), StringToByteConverter.toByte(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.String", "java.util.Date"), "org.eclipse.core.internal.databinding.conversion.StringToDateConverter"); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ converterMap .put( new Pair("java.lang.String", "java.lang.Short"), StringToShortConverter.toShort(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.String", "java.lang.Character"), StringToCharacterConverter.toCharacter(false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.String", "java.lang.Integer"), StringToNumberConverter.toInteger(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.String", "java.lang.Double"), StringToNumberConverter.toDouble(numberFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.String", "java.lang.Long"), StringToNumberConverter.toLong(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.String", "java.lang.Float"), StringToNumberConverter.toFloat(numberFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.String", "java.math.BigInteger"), StringToNumberConverter.toBigInteger(integerFormat)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.Integer", "java.lang.String"), NumberToStringConverter.fromInteger(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.Long", "java.lang.String"), NumberToStringConverter.fromLong(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.Double", "java.lang.String"), NumberToStringConverter.fromDouble(numberFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.Float", "java.lang.String"), NumberToStringConverter.fromFloat(numberFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.math.BigInteger", "java.lang.String"), NumberToStringConverter.fromBigInteger(integerFormat)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.Byte", "java.lang.String"), IntegerToStringConverter.fromByte(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.Short", "java.lang.String"), IntegerToStringConverter.fromShort(integerFormat, false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.Character", "java.lang.String"), CharacterToStringConverter.fromCharacter(false)); //$NON-NLS-1$//$NON-NLS-2$ converterMap .put( new Pair("java.lang.Object", "java.lang.String"), "org.eclipse.core.internal.databinding.conversion.ObjectToStringConverter"); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ // Integer.TYPE converterMap .put( new Pair("java.lang.String", INTEGER_TYPE), StringToNumberConverter.toInteger(integerFormat, true)); //$NON-NLS-1$ converterMap .put( new Pair(INTEGER_TYPE, "java.lang.Integer"), new IdentityConverter(Integer.TYPE, Integer.classinfo)); //$NON-NLS-1$ converterMap .put( new Pair(INTEGER_TYPE, "java.lang.Object"), new IdentityConverter(Integer.TYPE, Object.classinfo)); //$NON-NLS-1$ converterMap .put( new Pair(INTEGER_TYPE, "java.lang.String"), NumberToStringConverter.fromInteger(integerFormat, true)); //$NON-NLS-1$ // Byte.TYPE converterMap .put( new Pair("java.lang.String", BYTE_TYPE), StringToByteConverter.toByte(integerFormat, true)); //$NON-NLS-1$ converterMap .put( new Pair(BYTE_TYPE, "java.lang.Byte"), new IdentityConverter(Byte.TYPE, Byte.classinfo)); //$NON-NLS-1$ converterMap .put( new Pair(BYTE_TYPE, "java.lang.String"), IntegerToStringConverter.fromByte(integerFormat, true)); //$NON-NLS-1$ converterMap .put( new Pair(BYTE_TYPE, "java.lang.Object"), new IdentityConverter(Byte.TYPE, Object.classinfo)); //$NON-NLS-1$ // Double.TYPE converterMap .put( new Pair("java.lang.String", DOUBLE_TYPE), StringToNumberConverter.toDouble(numberFormat, true)); //$NON-NLS-1$ converterMap .put( new Pair(DOUBLE_TYPE, "java.lang.String"), NumberToStringConverter.fromDouble(numberFormat, true)); //$NON-NLS-1$ converterMap .put( new Pair(DOUBLE_TYPE, "java.lang.Double"), new IdentityConverter(Double.TYPE, Double.classinfo)); //$NON-NLS-1$ converterMap .put( new Pair(DOUBLE_TYPE, "java.lang.Object"), new IdentityConverter(Double.TYPE, Object.classinfo)); //$NON-NLS-1$ // Boolean.TYPE converterMap .put( new Pair("java.lang.String", BOOLEAN_TYPE), "org.eclipse.core.internal.databinding.conversion.StringToBooleanPrimitiveConverter"); //$NON-NLS-1$ //$NON-NLS-2$ converterMap .put( new Pair(BOOLEAN_TYPE, "java.lang.Boolean"), new IdentityConverter(Boolean.TYPE, Boolean.classinfo)); //$NON-NLS-1$ converterMap .put( new Pair(BOOLEAN_TYPE, "java.lang.String"), new ObjectToStringConvertercast(Boolean.TYPE)); //$NON-NLS-1$ converterMap .put( new Pair(BOOLEAN_TYPE, "java.lang.Object"), new IdentityConverter(Boolean.TYPE, Object.classinfo)); //$NON-NLS-1$ // Float.TYPE converterMap .put( new Pair("java.lang.String", FLOAT_TYPE), StringToNumberConverter.toFloat(numberFormat, true)); //$NON-NLS-1$ converterMap .put( new Pair(FLOAT_TYPE, "java.lang.String"), NumberToStringConverter.fromFloat(numberFormat, true)); //$NON-NLS-1$ converterMap .put( new Pair(FLOAT_TYPE, "java.lang.Float"), new IdentityConverter(Float.TYPE, Float.classinfo)); //$NON-NLS-1$ converterMap .put( new Pair(FLOAT_TYPE, "java.lang.Object"), new IdentityConverter(Float.TYPE, Object.classinfo)); //$NON-NLS-1$ // Short.TYPE converterMap .put( new Pair("java.lang.String", SHORT_TYPE), StringToShortConverter.toShort(integerFormat, true)); //$NON-NLS-1$ converterMap .put( new Pair(SHORT_TYPE, "java.lang.Short"), new IdentityConverter(Short.TYPE, Short.classinfo)); //$NON-NLS-1$ converterMap .put( new Pair(SHORT_TYPE, "java.lang.String"), IntegerToStringConverter.fromShort(integerFormat, true)); //$NON-NLS-1$ converterMap .put( new Pair(SHORT_TYPE, "java.lang.Object"), new IdentityConverter(Short.TYPE, Object.classinfo)); //$NON-NLS-1$ // Long.TYPE converterMap .put( new Pair("java.lang.String", LONG_TYPE), StringToNumberConverter.toLong(integerFormat, true)); //$NON-NLS-1$ converterMap .put( new Pair(LONG_TYPE, "java.lang.String"), NumberToStringConverter.fromLong(integerFormat, true)); //$NON-NLS-1$ converterMap .put( new Pair(LONG_TYPE, "java.lang.Long"), new IdentityConverter(Long.TYPE, Long.classinfo)); //$NON-NLS-1$ converterMap .put( new Pair(LONG_TYPE, "java.lang.Object"), new IdentityConverter(Long.TYPE, Object.classinfo)); //$NON-NLS-1$ // Character.TYPE converterMap .put( new Pair("java.lang.String", CHARACTER_TYPE), StringToCharacterConverter.toCharacter(true)); //$NON-NLS-1$ converterMap .put( new Pair(CHARACTER_TYPE, "java.lang.Character"), new IdentityConverter(Character.TYPE, Character.classinfo)); //$NON-NLS-1$ converterMap .put( new Pair(CHARACTER_TYPE, "java.lang.String"), CharacterToStringConverter.fromCharacter(true)); //$NON-NLS-1$ converterMap .put( new Pair(CHARACTER_TYPE, "java.lang.Object"), new IdentityConverter(Character.TYPE, Object.classinfo)); //$NON-NLS-1$ // Miscellaneous converterMap .put( new Pair( "org.eclipse.core.runtime.IStatus", "java.lang.String"), "org.eclipse.core.internal.databinding.conversion.StatusToStringConverter"); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ addNumberToByteConverters(converterMap, integerFormat, integerClasses); addNumberToByteConverters(converterMap, numberFormat, floatClasses); addNumberToShortConverters(converterMap, integerFormat, integerClasses); addNumberToShortConverters(converterMap, numberFormat, floatClasses); addNumberToIntegerConverters(converterMap, integerFormat, integerClasses); addNumberToIntegerConverters(converterMap, numberFormat, floatClasses); addNumberToLongConverters(converterMap, integerFormat, integerClasses); addNumberToLongConverters(converterMap, numberFormat, floatClasses); addNumberToFloatConverters(converterMap, integerFormat, integerClasses); addNumberToFloatConverters(converterMap, numberFormat, floatClasses); addNumberToDoubleConverters(converterMap, integerFormat, integerClasses); addNumberToDoubleConverters(converterMap, numberFormat, floatClasses); addNumberToBigIntegerConverters(converterMap, integerFormat, integerClasses); addNumberToBigIntegerConverters(converterMap, numberFormat, floatClasses); addNumberToBigDecimalConverters(converterMap, integerFormat, integerClasses); addNumberToBigDecimalConverters(converterMap, numberFormat, floatClasses); } return converterMap; } private static final ClassInfo[] integerClasses = new ClassInfo[] [ Byte.TYPE, Byte.classinfo, Short.TYPE, Short.classinfo, Integer.TYPE, Integer.classinfo, Long.TYPE, Long.classinfo, BigInteger.classinfo ]; private static final ClassInfo[] floatClasses = new ClassInfo[] [ Float.TYPE, Float.classinfo, Double.TYPE, Double.classinfo, BigDecimal.classinfo ]; /** * Registers converters to boxed and unboxed types from a list of from * classes. * * @param map * @param numberFormat * @param fromTypes */ private static void addNumberToByteConverters(Map map, NumberFormat numberFormat, ClassInfo[] fromTypes) { for (int i = 0; i < fromTypes.length; i++) { ClassInfo fromType = fromTypes[i]; if (!fromType.equals(Byte.classinfo) && !fromType.equalscast(Byte.TYPE)) { String fromName = (fromType.isPrimitive()) ? getKeyForClass( fromType, null) : fromType.getName(); map .put(new Pair(fromName, BYTE_TYPE), new NumberToByteConverter(numberFormat, fromType, true)); map .put(new Pair(fromName, Byte.classinfo.getName()), new NumberToByteConverter(numberFormat, fromType, false)); } } } /** * Registers converters to boxed and unboxed types from a list of from * classes. * * @param map * @param numberFormat * @param fromTypes */ private static void addNumberToShortConverters(Map map, NumberFormat numberFormat, ClassInfo[] fromTypes) { for (int i = 0; i < fromTypes.length; i++) { ClassInfo fromType = fromTypes[i]; if (!fromType.equals(Short.classinfo) && !fromType.equalscast(Short.TYPE)) { String fromName = (fromType.isPrimitive()) ? getKeyForClass( fromType, null) : fromType.getName(); map .put(new Pair(fromName, SHORT_TYPE), new NumberToShortConverter(numberFormat, fromType, true)); map.put(new Pair(fromName, Short.classinfo.getName()), new NumberToShortConverter(numberFormat, fromType, false)); } } } /** * Registers converters to boxed and unboxed types from a list of from * classes. * * @param map * @param numberFormat * @param fromTypes */ private static void addNumberToIntegerConverters(Map map, NumberFormat numberFormat, ClassInfo[] fromTypes) { for (int i = 0; i < fromTypes.length; i++) { ClassInfo fromType = fromTypes[i]; if (!fromType.equals(Integer.classinfo) && !fromType.equalscast(Integer.TYPE)) { String fromName = (fromType.isPrimitive()) ? getKeyForClass( fromType, null) : fromType.getName(); map.put(new Pair(fromName, INTEGER_TYPE), new NumberToIntegerConverter(numberFormat, fromType, true)); map.put(new Pair(fromName, Integer.classinfo.getName()), new NumberToIntegerConverter(numberFormat, fromType, false)); } } } /** * Registers converters to boxed and unboxed types from a list of from * classes. * * @param map * @param numberFormat * @param fromTypes */ private static void addNumberToLongConverters(Map map, NumberFormat numberFormat, ClassInfo[] fromTypes) { for (int i = 0; i < fromTypes.length; i++) { ClassInfo fromType = fromTypes[i]; if (!fromType.equals(Long.classinfo) && !fromType.equalscast(Long.TYPE)) { String fromName = (fromType.isPrimitive()) ? getKeyForClass( fromType, null) : fromType.getName(); map .put(new Pair(fromName, LONG_TYPE), new NumberToLongConverter(numberFormat, fromType, true)); map .put(new Pair(fromName, Long.classinfo.getName()), new NumberToLongConverter(numberFormat, fromType, false)); } } } /** * Registers converters to boxed and unboxed types from a list of from * classes. * * @param map * @param numberFormat * @param fromTypes */ private static void addNumberToFloatConverters(Map map, NumberFormat numberFormat, ClassInfo[] fromTypes) { for (int i = 0; i < fromTypes.length; i++) { ClassInfo fromType = fromTypes[i]; if (!fromType.equals(Float.classinfo) && !fromType.equalscast(Float.TYPE)) { String fromName = (fromType.isPrimitive()) ? getKeyForClass( fromType, null) : fromType.getName(); map .put(new Pair(fromName, FLOAT_TYPE), new NumberToFloatConverter(numberFormat, fromType, true)); map.put(new Pair(fromName, Float.classinfo.getName()), new NumberToFloatConverter(numberFormat, fromType, false)); } } } /** * Registers converters to boxed and unboxed types from a list of from * classes. * * @param map * @param numberFormat * @param fromTypes */ private static void addNumberToDoubleConverters(Map map, NumberFormat numberFormat, ClassInfo[] fromTypes) { for (int i = 0; i < fromTypes.length; i++) { ClassInfo fromType = fromTypes[i]; if (!fromType.equals(Double.classinfo) && !fromType.equalscast(Double.TYPE)) { String fromName = (fromType.isPrimitive()) ? getKeyForClass( fromType, null) : fromType.getName(); map.put(new Pair(fromName, DOUBLE_TYPE), new NumberToDoubleConverter(numberFormat, fromType, true)); map.put(new Pair(fromName, Double.classinfo.getName()), new NumberToDoubleConverter(numberFormat, fromType, false)); } } } /** * Registers converters to boxed and unboxed types from a list of from * classes. * * @param map * @param numberFormat * @param fromTypes */ private static void addNumberToBigIntegerConverters(Map map, NumberFormat numberFormat, ClassInfo[] fromTypes) { for (int i = 0; i < fromTypes.length; i++) { ClassInfo fromType = fromTypes[i]; if (!fromType.equals(BigInteger.classinfo)) { String fromName = (fromType.isPrimitive()) ? getKeyForClass( fromType, null) : fromType.getName(); map .put(new Pair(fromName, BigInteger.classinfo.getName()), new NumberToBigIntegerConverter(numberFormat, fromType)); } } } /** * Registers converters to boxed and unboxed types from a list of from * classes. * * @param map * @param numberFormat * @param fromTypes */ private static void addNumberToBigDecimalConverters(Map map, NumberFormat numberFormat, ClassInfo[] fromTypes) { for (int i = 0; i < fromTypes.length; i++) { ClassInfo fromType = fromTypes[i]; if (!fromType.equals(BigDecimal.classinfo)) { String fromName = (fromType.isPrimitive()) ? getKeyForClass( fromType, null) : fromType.getName(); map .put(new Pair(fromName, BigDecimal.classinfo.getName()), new NumberToBigDecimalConverter(numberFormat, fromType)); } } } private static String getKeyForClass(Object originalValue, ClassInfo filteredValue) { if ( null !is cast(ClassInfo)originalValue ) { ClassInfo originalClass = cast(ClassInfo) originalValue; if (originalClass.equalscast(Integer.TYPE)) { return INTEGER_TYPE; } else if (originalClass.equalscast(Byte.TYPE)) { return BYTE_TYPE; } else if (originalClass.equalscast(Boolean.TYPE)) { return BOOLEAN_TYPE; } else if (originalClass.equalscast(Double.TYPE)) { return DOUBLE_TYPE; } else if (originalClass.equalscast(Float.TYPE)) { return FLOAT_TYPE; } else if (originalClass.equalscast(Long.TYPE)) { return LONG_TYPE; } else if (originalClass.equalscast(Short.TYPE)) { return SHORT_TYPE; } } return filteredValue.getName(); } /** * Returns {@link Boolean#TRUE} if the from type is assignable to the to * type, or {@link Boolean#FALSE} if it not, or <code>null</code> if * unknown. * * @param fromType * @param toType * @return whether fromType is assignable to toType, or <code>null</code> * if unknown */ protected Boolean isAssignableFromTo(Object fromType, Object toType) { if ( null !is cast(ClassInfo )fromType && null !is cast(ClassInfo)toType ) { ClassInfo toClass = cast(ClassInfo) toType; if (toClass.isPrimitive()) { toClass = autoboxed(toClass); } ClassInfo fromClass = cast(ClassInfo) fromType; if (fromClass.isPrimitive()) { fromClass = autoboxed(fromClass); } return toClass.isAssignableFrom(fromClass) ? Boolean.TRUE : Boolean.FALSE; } return null; } /* * Default converter implementation, does not perform any conversion. */ protected static final class DefaultConverter : IConverter { private final Object toType; private final Object fromType; /** * @param fromType * @param toType */ this(Object fromType, Object toType) { this.toType = toType; this.fromType = fromType; } public Object convert(Object fromObject) { return fromObject; } public Object getFromType() { return fromType; } public Object getToType() { return toType; } } }