cn.featherfly.conversion.parse.ClassMethodParser Maven / Gradle / Ivy
package cn.featherfly.conversion.parse;
import cn.featherfly.common.lang.ClassUtils;
import cn.featherfly.common.lang.GenericType;
import cn.featherfly.common.lang.LangUtils;
/**
*
* class类协议解析器
*
*
* @param 解析的目标类型描述
* @author 钟冀
*/
public class ClassMethodParser> extends AbstractIterableParser {
/**
* 协议字符串常量
*/
public static final String PROTOCOL = "method";
/**
*/
public ClassMethodParser() {
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("unchecked")
@Override
protected T doParseContent(String content, G to) {
if (LangUtils.isEmpty(content)) {
return null;
}
String[] strs = parseContent(content);
if (strs.length != 2) {
throw new ParseException("format error " + content);
}
String className = strs[0];
String methodName = strs[1];
return (T) getValue(className, methodName);
}
private String[] parseContent(String str) {
StringBuilder sb = new StringBuilder();
boolean afterDot = false;
boolean find = false;
for (int i = 0; i < str.length(); i++) {
char c = str.charAt(i);
if (Character.isUpperCase(c) && afterDot) {
find = true;
}
if (c == '.') {
afterDot = true;
if (find) {
return new String[] { sb.toString(), str.substring(i + 1) };
}
} else {
afterDot = false;
}
sb.append(c);
}
return new String[] { sb.toString() };
}
private Object getValue(String className, String methodName) {
try {
return getValue(Class.forName(className), methodName);
} catch (ClassNotFoundException e) {
throw new ParseException(e);
}
}
private Object getValue(Class type, String methodName) {
return ClassUtils.invokeMethod(type, methodName);
}
/**
* {@inheritDoc}
*/
@Override
protected boolean supportFor(GenericType to) {
return true;
}
/**
* {@inheritDoc}
*/
@Override
public String getProtocol() {
return PROTOCOL;
}
}