aQute.lib.json.SpecialHandler Maven / Gradle / Ivy
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package aQute.lib.json;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.Map;
import java.util.regex.Pattern;
public class SpecialHandler extends Handler {
@SuppressWarnings("rawtypes")
final Class type;
final Method valueOf;
final Constructor constructor;
public SpecialHandler(Class type, Constructor constructor, Method valueOf) {
this.type = type;
this.constructor = constructor;
this.valueOf = valueOf;
}
@Override
public void encode(Encoder app, Object object, Map visited) throws IOException, Exception {
StringHandler.string(app, object.toString());
}
@Override
public Object decode(Decoder dec, String s) throws Exception {
if (type == Pattern.class)
return Pattern.compile(s);
if (constructor != null)
return constructor.newInstance(s);
if (valueOf != null)
return valueOf.invoke(null, s);
throw new IllegalArgumentException("Do not know how to convert a " + type + " from a string");
}
}