package com.opensymphony.xwork2.conversion.impl;
import com.opensymphony.xwork2.conversion.TypeConverter;
import com.opensymphony.xwork2.conversion.TypeConverterHolder;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
/**
* Default implementation of {@link TypeConverterHolder}
*/
public class DefaultTypeConverterHolder implements TypeConverterHolder {
/**
* Record class and its type converter mapping.
* <pre>
* - String - classname as String
* - TypeConverter - instance of TypeConverter
* </pre>
*/
private HashMap<String, TypeConverter> defaultMappings = new HashMap<>(); // non-action (eg. returned value)
/**
* Target class conversion Mappings.
* <pre>
* Map<Class, Map<String, Object>>
* - Class -> convert to class
* - Map<String, Object>
* - String -> property name
* eg. Element_property, property etc.
* - Object -> String to represent properties
* eg. value part of
* KeyProperty_property=id
* -> TypeConverter to represent an Ognl TypeConverter
* eg. value part of
* property=foo.bar.MyConverter
* -> Class to represent a class
* eg. value part of
* Element_property=foo.bar.MyObject
* </pre>
*/
private HashMap<Class, Map<String, Object>> mappings = new HashMap<>(); // action
/**
* Unavailable target class conversion mappings, serves as a simple cache.
*/
private HashSet<Class> noMapping = new HashSet<>(); // action
/**
* Record classes that doesn't have conversion mapping defined.
* <pre>
* - String -> classname as String
* </pre>
*/
protected HashSet<String> unknownMappings = new HashSet<>(); // non-action (eg. returned value)
public void addDefaultMapping(String className, TypeConverter typeConverter) {
defaultMappings.put(className, typeConverter);
if (unknownMappings.contains(className)) {
unknownMappings.remove(className);
}
}
public boolean containsDefaultMapping(String className) {
return defaultMappings.containsKey(className);
}
public TypeConverter getDefaultMapping(String className) {
return defaultMappings.get(className);
}
public Map<String, Object> getMapping(Class clazz) {
return mappings.get(clazz);
}
public void addMapping(Class clazz, Map<String, Object> mapping) {
mappings.put(clazz, mapping);
}
public boolean containsNoMapping(Class clazz) {
return noMapping.contains(clazz);
}
public void addNoMapping(Class clazz) {
noMapping.add(clazz);
}
public boolean containsUnknownMapping(String className) {
return unknownMappings.contains(className);
}
public void addUnknownMapping(String className) {
unknownMappings.add(className);
}
}