com.spun.util.io.xml.XmlMap Maven / Gradle / Ivy
package com.spun.util.io.xml;
import org.lambda.query.Query;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.List;
public class XmlMap
{
private String settingFunction;
private String xmlName;
private XmlExtractor extractor;
private Method settingMethod;
private Class type;
public XmlMap(String xmlName, String settingFunction, Class type)
{
this.xmlName = xmlName;
this.settingFunction = settingFunction;
this.type = type;
}
public XmlMap(String xmlName, String settingFunction)
{
this.xmlName = xmlName;
this.settingFunction = settingFunction;
}
public Method getSettingMethod()
{
return settingMethod;
}
public String getNodeName()
{
return xmlName;
}
public XmlMap(String xmlName, String settingFunction, XmlExtractor extractor)
{
this.xmlName = xmlName;
this.settingFunction = settingFunction;
this.extractor = extractor;
}
public void initialize(Class clazz)
{
List methods = Query.where(clazz.getMethods(), m -> isSetterMethod(m, type, settingFunction));
settingMethod = getBestMethodFit(methods);
if (extractor == null)
{
Class takes = settingMethod.getParameterTypes()[0];
extractor = getExtractorFor(takes);
}
}
private XmlExtractor getExtractorFor(Class takes)
{
XmlExtractor extractor = BasicExtractor.get(takes);
// basic type get basic type extractor
if (extractor != null)
{
}
else if (XmlExtractable.class.isAssignableFrom(takes))
{
extractor = new XmlMapExtractor((Class) takes);
}
else
{
throw new Error("Unable to extract for class '" + takes.getName() + "'");
}
return extractor;
}
private Method getBestMethodFit(List methods)
{
if (methods.size() == 0)
{
throw new Error("no method found for '" + settingFunction + "'");
}
else if (methods.size() == 1)
{
return (Method) methods.get(0);
}
else
{
throw new Error("Need to Find best method for '" + settingFunction + "' from " + methods);
}
}
public XmlExtractor getExtractor()
{
return extractor;
}
public static boolean isSetterMethod(Method method, Class clazz, String methodName)
{
return method.getParameterTypes().length == 1 && (clazz == null || method.getParameterTypes()[0] == clazz)
&& Modifier.isPublic(method.getModifiers()) && method.getName().equals(methodName);
}
}