package org.nutz.mvc.impl;
import java.util.ArrayList;
import java.util.List;
import org.nutz.lang.Lang;
import org.nutz.lang.Mirror;
import org.nutz.log.Log;
import org.nutz.log.Logs;
import org.nutz.mvc.ActionChain;
import org.nutz.mvc.ActionChainMaker;
import org.nutz.mvc.ActionInfo;
import org.nutz.mvc.NutConfig;
import org.nutz.mvc.Processor;
import org.nutz.mvc.impl.chainconfig.ActionChainMakerConfiguration;
import org.nutz.mvc.impl.chainconfig.JsonActionChainMakerConfiguretion;
public class NutActionChainMaker implements ActionChainMaker {
private static final Log logger = Logs.get();
ActionChainMakerConfiguration co;
public NutActionChainMaker(String...args) {
co = new JsonActionChainMakerConfiguretion(args);
}
public ActionChain eval(NutConfig config, ActionInfo ai) {
try {
List<Processor> list = new ArrayList<Processor>();
for (String name : co.getProcessors(ai.getChainName())) {
Processor processor = getProcessorByName(config, name);
processor.init(config, ai);
list.add(processor);
}
Processor errorProcessor = getProcessorByName(config, co.getErrorProcessor(ai.getChainName()));
errorProcessor.init(config, ai);
/*
* 返回动作链实例
*/
ActionChain chain = new NutActionChain(list, errorProcessor, ai.getMethod());
return chain;
} catch (Throwable e) {
if (logger.isDebugEnabled())
logger.debugf("Eval FAIL!! : %s",ai.getMethod());
throw Lang.wrapThrow(e);
}
}
protected static Processor getProcessorByName(NutConfig config,String name) throws Exception {
if (name.startsWith("ioc:") && name.length() > 4)
return config.getIoc().get(Processor.class, name.substring(4));
else
return (Processor) Mirror.me(Lang.loadClass(name)).born();
}
}