org.picocontainer.converters.BuiltInConverters Maven / Gradle / Ivy
package org.picocontainer.converters;
import org.picocontainer.Converters;
import java.io.File;
import java.io.Serializable;
import java.lang.reflect.Type;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
/**
* Provides some built-in converters used by {@link DefaultPicoContainer}. It
* supports by default primitive types (and boxed equivalents) and for
* {@link File} and {@link URL} types. Built-in converters can be changed by
* extending the class and overriding the method {@link #addBuiltInConverters()}.
*/
@SuppressWarnings("serial")
public class BuiltInConverters implements Converters, Serializable {
private final Map, Converter>> converters = new HashMap, Converter>>();
public BuiltInConverters() {
addBuiltInConverters();
}
protected void addBuiltInConverters() {
addMultiTypeConverter(new IntegerConverter(), Integer.class, Integer.TYPE);
addMultiTypeConverter(new DoubleConverter(), Double.class, Double.TYPE);
addMultiTypeConverter(new BooleanConverter(), Boolean.class, Boolean.TYPE);
addMultiTypeConverter(new LongConverter(), Long.class, Long.TYPE);
addMultiTypeConverter(new FloatConverter(), Float.class, Float.TYPE);
addMultiTypeConverter(new CharacterConverter(), Character.class, Character.TYPE);
addMultiTypeConverter(new ByteConverter(), Byte.class, Byte.TYPE);
addMultiTypeConverter(new ShortConverter(), Short.class, Short.TYPE);
addConverter(new FileConverter(), File.class);
addConverter(new UrlConverter(), URL.class);
}
private void addMultiTypeConverter(Converter> converter, Class>... types) {
for (Class> type : types) {
addConverter(converter, type);
}
}
protected void addConverter(Converter> converter, Class> key) {
converters.put(key, converter);
}
public boolean canConvert(Type type) {
return converters.containsKey(type);
}
public Object convert(String paramValue, Type type) {
Converter> converter = converters.get(type);
if (converter == null) {
return null;
}
return converter.convert(paramValue);
}
}