weixin4j-server:WeixinMessageInterceptor加入weight权重接口

CHANGE.md

@@ -601,4 +601,6 @@
 * 2015-12-26
   
   + weixin4j-base:MchPayRequest抽象化
+  
+  + weixin4j-server:WeixinMessageInterceptor加入weight权重接口
   

weixin4j-server/src/main/java/com/foxinmy/weixin4j/dispatcher/WeixinMessageDispatcher.java

@@ -9,7 +9,6 @@ import io.netty.util.internal.logging.InternalLoggerFactory;
 import java.io.ByteArrayInputStream;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Modifier;
-import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashMap;
@@ -207,24 +206,13 @@ public class WeixinMessageDispatcher {
 		if (messageHandlers == null) {
 			return null;
 		}
-		List<WeixinMessageHandler> matchingMessageHandlers = new ArrayList<WeixinMessageHandler>();
+		WeixinMessageHandler messageHandler = null;
 		for (WeixinMessageHandler handler : messageHandlers) {
 			if (handler.canHandle(request, message, nodeNames)) {
-				matchingMessageHandlers.add(handler);
+				messageHandler = handler;
+				break;
 			}
 		}
-		if (matchingMessageHandlers.isEmpty()) {
-			return null;
-		}
-		Collections.sort(matchingMessageHandlers,
-				new Comparator<WeixinMessageHandler>() {
-					@Override
-					public int compare(WeixinMessageHandler m1,
-							WeixinMessageHandler m2) {
-						return m2.weight() - m1.weight();
-					}
-				});
-		WeixinMessageHandler messageHandler = matchingMessageHandlers.get(0);
 		return new MessageHandlerExecutor(context, messageHandler,
 				getMessageInterceptors());
 	}
@@ -246,8 +234,8 @@ public class WeixinMessageDispatcher {
 				}
 				if (beanFactory != null) {
 					for (Class<?> clazz : messageHandlerClass) {
-						messageHandlerList.add(0,
+						messageHandlerList
-								(WeixinMessageHandler) beanFactory
+								.add((WeixinMessageHandler) beanFactory
 										.getBean(clazz));
 					}
 				} else {
@@ -260,9 +248,8 @@ public class WeixinMessageDispatcher {
 							Constructor<?> ctor = clazz
 									.getDeclaredConstructor();
 							ReflectionUtil.makeAccessible(ctor);
-							messageHandlerList.add(0,
+							messageHandlerList.add((WeixinMessageHandler) ctor
-									(WeixinMessageHandler) ctor
+									.newInstance((Object[]) null));
-											.newInstance((Object[]) null));
 						} catch (Exception ex) {
 							throw new WeixinException(clazz.getName()
 									+ " instantiate fail", ex);
@@ -272,6 +259,14 @@ public class WeixinMessageDispatcher {
 			}
 			if (messageHandlerList != null
 					&& !this.messageHandlerList.isEmpty()) {
+				Collections.sort(messageHandlerList,
+						new Comparator<WeixinMessageHandler>() {
+							@Override
+							public int compare(WeixinMessageHandler m1,
+									WeixinMessageHandler m2) {
+								return m2.weight() - m1.weight();
+							}
+						});
 				this.messageHandlers = this.messageHandlerList
 						.toArray(new WeixinMessageHandler[this.messageHandlerList
 								.size()]);
@@ -298,8 +293,8 @@ public class WeixinMessageDispatcher {
 				}
 				if (beanFactory != null) {
 					for (Class<?> clazz : messageInterceptorClass) {
-						messageInterceptorList.add(0,
+						messageInterceptorList
-								(WeixinMessageInterceptor) beanFactory
+								.add((WeixinMessageInterceptor) beanFactory
 										.getBean(clazz));
 					}
 				} else {
@@ -312,8 +307,8 @@ public class WeixinMessageDispatcher {
 							Constructor<?> ctor = clazz
 									.getDeclaredConstructor();
 							ReflectionUtil.makeAccessible(ctor);
-							messageInterceptorList.add(0,
+							messageInterceptorList
-									(WeixinMessageInterceptor) ctor
+									.add((WeixinMessageInterceptor) ctor
 											.newInstance((Object[]) null));
 						} catch (Exception ex) {
 							throw new WeixinException(clazz.getName()
@@ -324,6 +319,14 @@ public class WeixinMessageDispatcher {
 			}
 			if (this.messageInterceptorList != null
 					&& !this.messageInterceptorList.isEmpty()) {
+				Collections.sort(messageInterceptorList,
+						new Comparator<WeixinMessageInterceptor>() {
+							@Override
+							public int compare(WeixinMessageInterceptor m1,
+									WeixinMessageInterceptor m2) {
+								return m2.weight() - m1.weight();
+							}
+						});
 				this.messageInterceptors = this.messageInterceptorList
 						.toArray(new WeixinMessageInterceptor[this.messageInterceptorList
 								.size()]);

weixin4j-server/src/main/java/com/foxinmy/weixin4j/interceptor/MessageInterceptorAdapter.java

@@ -38,4 +38,8 @@ public abstract class MessageInterceptorAdapter implements
 			WeixinMessageHandler handler, Exception exception)
 			throws WeixinException {
 	}
+
+	public int weight() {
+		return 0;
+	}
 }

weixin4j-server/src/main/java/com/foxinmy/weixin4j/interceptor/WeixinMessageInterceptor.java

@@ -74,4 +74,11 @@ public interface WeixinMessageInterceptor {
 			WeixinResponse response, Object message,
 			WeixinMessageHandler handler, Exception exception)
 			throws WeixinException;
+
+	/**
+	 * 用于匹配到多个MessageHandler时权重降序排列,数字越大优先级越高
+	 * 
+	 * @return 权重
+	 */
+	int weight();
 }

weixin4j-server/src/test/java/com/foxinmy/weixin4j/server/test/MessagePush.java

@@ -26,7 +26,7 @@ import com.foxinmy.weixin4j.util.Consts;
  */
 public class MessagePush {
 
-	private final String server = "http://localhost:30000";
+	private final String server = "http://localhost:10003";
 	private final HttpClient httpClient;
 	private final HttpPost httpPost;
 	private final HttpGet httpGet;

weixin4j-server/src/test/java/com/foxinmy/weixin4j/server/test/MessageServerStartup.java

@@ -105,6 +105,11 @@ public class MessageServerStartup {
 					Exception exception) throws WeixinException {
 				System.err.println("请求处理完毕");
 			}
+
+			@Override
+			public int weight() {
+				return 0;
+			}
 		};
 		new WeixinServerBootstrap(token).addInterceptor(interceptor)
 				.openAlwaysResponse().startup();