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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.beanutils;
/**
* Utility methods for converting String scalar values to objects of the
* specified Class, String arrays to arrays of the specified Class.
*
* For more details, see ConvertUtilsBean which provides the
* implementations for these methods.
*
* @version $Id$
* @see ConvertUtilsBean
*/
public class ConvertUtils {
// ------------------------------------------------------ Static Properties
/**
* Gets the default value for Boolean conversions.
* @return The default Boolean value
* @deprecated Register replacement converters for Boolean.TYPE and
* Boolean.class instead
*/
@Deprecated
public static boolean getDefaultBoolean() {
return (ConvertUtilsBean.getInstance().getDefaultBoolean());
}
/**
* Sets the default value for Boolean conversions.
* @param newDefaultBoolean The default Boolean value
* @deprecated Register replacement converters for Boolean.TYPE and
* Boolean.class instead
*/
@Deprecated
public static void setDefaultBoolean(final boolean newDefaultBoolean) {
ConvertUtilsBean.getInstance().setDefaultBoolean(newDefaultBoolean);
}
/**
* Gets the default value for Byte conversions.
* @return The default Byte value
* @deprecated Register replacement converters for Byte.TYPE and
* Byte.class instead
*/
@Deprecated
public static byte getDefaultByte() {
return ConvertUtilsBean.getInstance().getDefaultByte();
}
/**
* Sets the default value for Byte conversions.
* @param newDefaultByte The default Byte value
* @deprecated Register replacement converters for Byte.TYPE and
* Byte.class instead
*/
@Deprecated
public static void setDefaultByte(final byte newDefaultByte) {
ConvertUtilsBean.getInstance().setDefaultByte(newDefaultByte);
}
/**
* Gets the default value for Character conversions.
* @return The default Character value
* @deprecated Register replacement converters for Character.TYPE and
* Character.class instead
*/
@Deprecated
public static char getDefaultCharacter() {
return ConvertUtilsBean.getInstance().getDefaultCharacter();
}
/**
* Sets the default value for Character conversions.
* @param newDefaultCharacter The default Character value
* @deprecated Register replacement converters for Character.TYPE and
* Character.class instead
*/
@Deprecated
public static void setDefaultCharacter(final char newDefaultCharacter) {
ConvertUtilsBean.getInstance().setDefaultCharacter(newDefaultCharacter);
}
/**
* Gets the default value for Double conversions.
* @return The default Double value
* @deprecated Register replacement converters for Double.TYPE and
* Double.class instead
*/
@Deprecated
public static double getDefaultDouble() {
return ConvertUtilsBean.getInstance().getDefaultDouble();
}
/**
* Sets the default value for Double conversions.
* @param newDefaultDouble The default Double value
* @deprecated Register replacement converters for Double.TYPE and
* Double.class instead
*/
@Deprecated
public static void setDefaultDouble(final double newDefaultDouble) {
ConvertUtilsBean.getInstance().setDefaultDouble(newDefaultDouble);
}
/**
* Get the default value for Float conversions.
* @return The default Float value
* @deprecated Register replacement converters for Float.TYPE and
* Float.class instead
*/
@Deprecated
public static float getDefaultFloat() {
return ConvertUtilsBean.getInstance().getDefaultFloat();
}
/**
* Sets the default value for Float conversions.
* @param newDefaultFloat The default Float value
* @deprecated Register replacement converters for Float.TYPE and
* Float.class instead
*/
@Deprecated
public static void setDefaultFloat(final float newDefaultFloat) {
ConvertUtilsBean.getInstance().setDefaultFloat(newDefaultFloat);
}
/**
* Gets the default value for Integer conversions.
* @return The default Integer value
* @deprecated Register replacement converters for Integer.TYPE and
* Integer.class instead
*/
@Deprecated
public static int getDefaultInteger() {
return ConvertUtilsBean.getInstance().getDefaultInteger();
}
/**
* Sets the default value for Integer conversions.
* @param newDefaultInteger The default Integer value
* @deprecated Register replacement converters for Integer.TYPE and
* Integer.class instead
*/
@Deprecated
public static void setDefaultInteger(final int newDefaultInteger) {
ConvertUtilsBean.getInstance().setDefaultInteger(newDefaultInteger);
}
/**
* Gets the default value for Long conversions.
* @return The default Long value
* @deprecated Register replacement converters for Long.TYPE and
* Long.class instead
*/
@Deprecated
public static long getDefaultLong() {
return (ConvertUtilsBean.getInstance().getDefaultLong());
}
/**
* Sets the default value for Long conversions.
* @param newDefaultLong The default Long value
* @deprecated Register replacement converters for Long.TYPE and
* Long.class instead
*/
@Deprecated
public static void setDefaultLong(final long newDefaultLong) {
ConvertUtilsBean.getInstance().setDefaultLong(newDefaultLong);
}
/**
* Gets the default value for Short conversions.
* @return The default Short value
* @deprecated Register replacement converters for Short.TYPE and
* Short.class instead
*/
@Deprecated
public static short getDefaultShort() {
return ConvertUtilsBean.getInstance().getDefaultShort();
}
/**
* Sets the default value for Short conversions.
* @param newDefaultShort The default Short value
* @deprecated Register replacement converters for Short.TYPE and
* Short.class instead
*/
@Deprecated
public static void setDefaultShort(final short newDefaultShort) {
ConvertUtilsBean.getInstance().setDefaultShort(newDefaultShort);
}
// --------------------------------------------------------- Public Classes
/**
* Convert the specified value into a String.
*
* For more details see ConvertUtilsBean.
*
* @param value Value to be converted (may be null)
* @return The converted String value or null if value is null
*
* @see ConvertUtilsBean#convert(Object)
*/
public static String convert(final Object value) {
return ConvertUtilsBean.getInstance().convert(value);
}
/**
* Convert the specified value to an object of the specified class (if
* possible). Otherwise, return a String representation of the value.
*
* For more details see ConvertUtilsBean.
*
* @param value Value to be converted (may be null)
* @param clazz Java class to be converted to (must not be null)
* @return The converted value
*
* @see ConvertUtilsBean#convert(String, Class)
*/
public static Object convert(final String value, final Class clazz) {
return ConvertUtilsBean.getInstance().convert(value, clazz);
}
/**
* Convert an array of specified values to an array of objects of the
* specified class (if possible).
*
* For more details see ConvertUtilsBean.
*
* @param values Array of values to be converted
* @param clazz Java array or element class to be converted to (must not be null)
* @return The converted value
*
* @see ConvertUtilsBean#convert(String[], Class)
*/
public static Object convert(final String[] values, final Class clazz) {
return ConvertUtilsBean.getInstance().convert(values, clazz);
}
/**
* Convert the value to an object of the specified class (if
* possible).
*
* @param value Value to be converted (may be null)
* @param targetType Class of the value to be converted to (must not be null)
* @return The converted value
*
* @throws ConversionException if thrown by an underlying Converter
*/
public static Object convert(final Object value, final Class targetType) {
return ConvertUtilsBean.getInstance().convert(value, targetType);
}
/**
* Remove all registered {@link Converter}s, and re-establish the
* standard Converters.
*
* For more details see ConvertUtilsBean.
*
* @see ConvertUtilsBean#deregister()
*/
public static void deregister() {
ConvertUtilsBean.getInstance().deregister();
}
/**
* Remove any registered {@link Converter} for the specified destination
* Class.
*
* For more details see ConvertUtilsBean.
*
* @param clazz Class for which to remove a registered Converter
* @see ConvertUtilsBean#deregister(Class)
*/
public static void deregister(final Class clazz) {
ConvertUtilsBean.getInstance().deregister(clazz);
}
/**
* Look up and return any registered {@link Converter} for the specified
* destination class; if there is no registered Converter, return
* null.
*
* For more details see ConvertUtilsBean.
*
* @param clazz Class for which to return a registered Converter
* @return The registered {@link Converter} or null if not found
* @see ConvertUtilsBean#lookup(Class)
*/
public static Converter lookup(final Class clazz) {
return ConvertUtilsBean.getInstance().lookup(clazz);
}
/**
* Look up and return any registered {@link Converter} for the specified
* source and destination class; if there is no registered Converter,
* return null.
*
* @param sourceType Class of the value being converted
* @param targetType Class of the value to be converted to
* @return The registered {@link Converter} or null if not found
*/
public static Converter lookup(final Class sourceType, final Class targetType) {
return ConvertUtilsBean.getInstance().lookup(sourceType, targetType);
}
/**
* Register a custom {@link Converter} for the specified destination
* Class, replacing any previously registered Converter.
*
* For more details see ConvertUtilsBean.
*
* @param converter Converter to be registered
* @param clazz Destination class for conversions performed by this
* Converter
* @see ConvertUtilsBean#register(Converter, Class)
*/
public static void register(final Converter converter, final Class clazz) {
ConvertUtilsBean.getInstance().register(converter, clazz);
}
/**
* Change primitive Class types to the associated wrapper class. This is
* useful for concrete converter implementations which typically treat
* primitive types like their corresponding wrapper types.
*
* @param The type to be checked.
* @param type The class type to check.
* @return The converted type.
* @since 1.9
*/
// All type casts are safe because the TYPE members of the wrapper types
// return their own class.
@SuppressWarnings("unchecked")
public static Class primitiveToWrapper(final Class type) {
if (type == null || !type.isPrimitive()) {
return type;
}
if (type == Integer.TYPE) {
return (Class) Integer.class;
} else if (type == Double.TYPE) {
return (Class) Double.class;
} else if (type == Long.TYPE) {
return (Class) Long.class;
} else if (type == Boolean.TYPE) {
return (Class) Boolean.class;
} else if (type == Float.TYPE) {
return (Class) Float.class;
} else if (type == Short.TYPE) {
return (Class) Short.class;
} else if (type == Byte.TYPE) {
return (Class) Byte.class;
} else if (type == Character.TYPE) {
return (Class) Character.class;
} else {
return type;
}
}
}