package com.opensymphony.xwork2.conversion.impl;
import com.opensymphony.xwork2.conversion.ConversionAnnotationProcessor;
import com.opensymphony.xwork2.conversion.TypeConverter;
import com.opensymphony.xwork2.conversion.TypeConverterCreator;
import com.opensymphony.xwork2.conversion.TypeConverterHolder;
import com.opensymphony.xwork2.conversion.annotations.ConversionRule;
import com.opensymphony.xwork2.conversion.annotations.ConversionType;
import com.opensymphony.xwork2.conversion.annotations.TypeConversion;
import com.opensymphony.xwork2.inject.Inject;
import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import java.util.Map;
/**
* Default implementation of {@link ConversionAnnotationProcessor}
*/
public class DefaultConversionAnnotationProcessor implements ConversionAnnotationProcessor {
private static final Logger LOG = LogManager.getLogger(DefaultConversionAnnotationProcessor.class);
private TypeConverterCreator converterCreator;
private TypeConverterHolder converterHolder;
@Inject
public void setTypeConverterCreator(TypeConverterCreator converterCreator) {
this.converterCreator = converterCreator;
}
@Inject
public void setTypeConverterHolder(TypeConverterHolder converterHolder) {
this.converterHolder = converterHolder;
}
public void process(Map<String, Object> mapping, TypeConversion tc, String key) {
LOG.debug("TypeConversion [{}/{}] with key: [{}]", tc.converter(), tc.converterClass(), key);
if (key == null) {
return;
}
try {
if (tc.type() == ConversionType.APPLICATION) {
if (StringUtils.isNoneEmpty(tc.converter())) {
converterHolder.addDefaultMapping(key, converterCreator.createTypeConverter(tc.converter()));
} else {
converterHolder.addDefaultMapping(key, converterCreator.createTypeConverter(tc.converterClass()));
}
} else {
if (tc.rule() == ConversionRule.KEY_PROPERTY || tc.rule() == ConversionRule.CREATE_IF_NULL) {
mapping.put(key, tc.value());
}
//for properties of classes
else if (tc.rule() != ConversionRule.ELEMENT || tc.rule() == ConversionRule.KEY || tc.rule() == ConversionRule.COLLECTION) {
if (StringUtils.isNoneEmpty(tc.converter())) {
mapping.put(key, converterCreator.createTypeConverter(tc.converter()));
} else {
mapping.put(key, converterCreator.createTypeConverter(tc.converterClass()));
}
}
//for keys of Maps
else if (tc.rule() == ConversionRule.KEY) {
Class<?> converterClass;
if (StringUtils.isNoneEmpty(tc.converter())) {
converterClass = Thread.currentThread().getContextClassLoader().loadClass(tc.converter());
//check if the converter is a type converter if it is one
//then just put it in the map as is. Otherwise
//put a value in for the type converter of the class
} else {
converterClass = tc.converterClass();
}
LOG.debug("Converter class: [{}]", converterClass);
if (converterClass.isAssignableFrom(TypeConverter.class)) {
mapping.put(key, converterCreator.createTypeConverter(tc.converter()));
} else {
mapping.put(key, converterClass);
LOG.debug("Object placed in mapping for key [{}] is [{}]", key, mapping.get(key));
}
}
//elements(values) of maps / lists
else {
if (StringUtils.isNoneEmpty(tc.converter())) {
mapping.put(key, Thread.currentThread().getContextClassLoader().loadClass(tc.converter()));
} else {
mapping.put(key, tc.converterClass());
}
}
}
} catch (Exception e) {
LOG.debug("Got exception for {}", key, e);
}
}
}