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 com.opensymphony.xwork2.util.logging.Logger;
import com.opensymphony.xwork2.util.logging.LoggerFactory;
import java.util.Map;
/**
* Default implementation of {@link ConversionAnnotationProcessor}
*/
public class DefaultConversionAnnotationProcessor implements ConversionAnnotationProcessor {
private static final Logger LOG = LoggerFactory.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) {
if (LOG.isDebugEnabled()) {
LOG.debug("TypeConversion [#0] with key: [#1]", tc.converter(), key);
}
if (key == null) {
return;
}
try {
if (tc.type() == ConversionType.APPLICATION) {
converterHolder.addDefaultMapping(key, converterCreator.createTypeConverter(tc.converter()));
} 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) {
mapping.put(key, converterCreator.createTypeConverter(tc.converter()));
}
//for keys of Maps
else if (tc.rule() == ConversionRule.KEY) {
Class converterClass = Thread.currentThread().getContextClassLoader().loadClass(tc.converter());
if (LOG.isDebugEnabled()) {
LOG.debug("Converter class: [#0]", converterClass);
}
//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
if (converterClass.isAssignableFrom(TypeConverter.class)) {
mapping.put(key, converterCreator.createTypeConverter(tc.converter()));
} else {
mapping.put(key, converterClass);
if (LOG.isDebugEnabled()) {
LOG.debug("Object placed in mapping for key [#0] is [#1]", key, mapping.get(key));
}
}
}
//elements(values) of maps / lists
else {
mapping.put(key, Thread.currentThread().getContextClassLoader().loadClass(tc.converter()));
}
}
} catch (Exception e) {
if (LOG.isDebugEnabled()) {
LOG.debug("Got exception for #0", e, key);
}
}
}
}