package com.firefly.mvc.web;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import com.firefly.annotation.RequestMapping;
import com.firefly.core.XmlApplicationContext;
import com.firefly.core.support.BeanDefinition;
import com.firefly.core.support.annotation.ConfigReader;
import com.firefly.core.support.xml.XmlBeanReader;
import com.firefly.mvc.web.support.MvcMetaInfo;
import com.firefly.mvc.web.support.ViewHandle;
import com.firefly.mvc.web.support.WebBeanDefinition;
import com.firefly.mvc.web.support.WebBeanReader;
import com.firefly.mvc.web.support.view.JsonViewHandle;
import com.firefly.mvc.web.support.view.JspViewHandle;
import com.firefly.mvc.web.support.view.RedirectHandle;
import com.firefly.mvc.web.support.view.TextViewHandle;
import com.firefly.utils.StringUtils;
import com.firefly.utils.VerifyUtils;
import com.firefly.utils.log.Log;
import com.firefly.utils.log.LogFactory;
/**
* Web应用上下文默认实现
*
* @author AlvinQiu
*
*/
public class AnnotationWebContext extends XmlApplicationContext implements
WebContext {
private static Log log = LogFactory.getInstance().getLog("firefly-system");
public AnnotationWebContext() {
this(null);
}
public AnnotationWebContext(String file) {
super(file);
JspViewHandle.getInstance().init(getViewPath());
TextViewHandle.getInstance().init(getEncoding());
JsonViewHandle.getInstance().init(getEncoding());
List<String> uriList = new ArrayList<String>();
for (BeanDefinition beanDef : beanDefinitions) {
if (beanDef instanceof WebBeanDefinition)
addObjectToContext(beanDef, uriList);
}
}
@Override
protected List<BeanDefinition> getBeanDefinitions(String file) {
List<BeanDefinition> list1 = new WebBeanReader(file)
.loadBeanDefinitions();
List<BeanDefinition> list2 = new XmlBeanReader(file)
.loadBeanDefinitions();
if (list1 != null && list2 != null) {
list1.addAll(list2);
return list1;
} else if (list1 != null)
return list1;
else if (list2 != null)
return list2;
return null;
}
@Override
public String getEncoding() {
return ConfigReader.getInstance().getConfig().getEncoding();
}
@Override
public String getViewPath() {
return ConfigReader.getInstance().getConfig().getViewPath();
}
@SuppressWarnings("unchecked")
private void addObjectToContext(BeanDefinition beanDef, List<String> uriList) {
WebBeanDefinition beanDefinition = (WebBeanDefinition) beanDef;
// 注册Controller里面声明的uri
List<Method> list = beanDefinition.getReqMethods();
if (list != null) {
for (Method m : list) {
m.setAccessible(true);
final String uri = m.getAnnotation(RequestMapping.class)
.value();
final String method = m.getAnnotation(RequestMapping.class)
.method();
final String view = m.getAnnotation(RequestMapping.class)
.view();
String key = method + "@" + uri;
// 构造请求uri对应的方法的元信息
MvcMetaInfo mvcMetaInfo = new MvcMetaInfo(
beanDefinition.getObject(), m, getViewHandle(view));
map.put(key, mvcMetaInfo);
uriList.add(key);
log.info("register uri [{}]", key);
if (key.charAt(key.length() - 1) == '/')
key = key.substring(0, key.length() - 1);
else
key += "/";
map.put(key, mvcMetaInfo);
uriList.add(key);
log.info("register uri [{}]", key);
}
}
list = beanDefinition.getInterceptorMethods();
if (list != null) {
log.debug("interceptorMethods size [{}]", list.size());
for (Method m : list) {
m.setAccessible(true);
List<String> l = getInterceptUri(
beanDefinition.getUriPattern(), uriList);
log.debug("interceptorUri size [{}]", l.size());
for (String i : l) {
String key = m.getName().charAt(0) + "#" + i;
// 构造拦截器的元信息
MvcMetaInfo mvcMetaInfo = new MvcMetaInfo(
beanDefinition.getObject(), m,
getViewHandle(beanDefinition.getView()));
mvcMetaInfo.setInterceptOrder(beanDefinition.getOrder());
Set<MvcMetaInfo> interceptorSet = (Set<MvcMetaInfo>) map
.get(key);
if (interceptorSet == null) {
interceptorSet = new TreeSet<MvcMetaInfo>();
interceptorSet.add(mvcMetaInfo);
map.put(key, interceptorSet);
} else {
interceptorSet.add(mvcMetaInfo);
}
}
}
}
}
/**
* 根据拦截器模式获取所有注册的Uri
*
* @param pattern
* @return
*/
private List<String> getInterceptUri(String pattern, List<String> uriList) {
List<String> list = new ArrayList<String>();
log.debug("uriList size [{}]", uriList.size());
for (String uriAndMethod : uriList) {
String uri = StringUtils.split(uriAndMethod, "@")[1];
if (ignoreBackslashEquals(pattern, uri)) {
log.debug("intercept uri[{}] pattern[{}]", uri, pattern);
list.add(uri);
}
}
return list;
}
/**
* 拦截地址匹配，忽略uri和pattern最后的'/'
*
* @param pattern
* @param uri
* @return
*/
private boolean ignoreBackslashEquals(String pattern, String uri) {
if (uri.charAt(uri.length() - 1) == '/')
uri = uri.substring(0, uri.length() - 1);
if (pattern.charAt(pattern.length() - 1) == '/')
pattern = pattern.substring(0, pattern.length() - 1);
return VerifyUtils.simpleWildcardMatch(pattern, uri);
}
private ViewHandle getViewHandle(String view) {
ViewHandle viewHandle = null;
if (view.equals(View.JSP)) {
viewHandle = JspViewHandle.getInstance();
} else if (view.equals(View.TEXT)) {
viewHandle = TextViewHandle.getInstance();
} else if (view.equals(View.REDIRECT)) {
viewHandle = RedirectHandle.getInstance();
} else if (view.equals(View.JSON)) {
viewHandle = JsonViewHandle.getInstance();
}
return viewHandle;
}
}