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jswitcher-spring-boot-starter/src/main/java/com/github/xincao9/jswitcher/spring/boot/starter/UriInterceptor.java

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+/*
+ * Copyright 2019 [email protected].
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.github.xincao9.jswitcher.spring.boot.starter;
+
+import com.github.xincao9.jswitcher.api.service.SwitcherService;
+import com.github.xincao9.jswitcher.api.vo.QoS;
+import java.io.IOException;
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServletRequest;
+
+/**
+ * Uri拦截器
+ * 
+ * @author [email protected]
+ */
+public class UriInterceptor implements Filter {
+
+    private final SwitcherService switcherService;
+
+    /**
+     * 构造器
+     * 
+     * @param switcherService 
+     */
+    public UriInterceptor (SwitcherService switcherService) {
+        this.switcherService = switcherService;
+    }
+
+    @Override
+    public void init(FilterConfig filterConfig) throws ServletException {
+    }
+
+    /**
+     * 过滤器逻辑
+     * 
+     * @param request 请求体
+     * @param response 响应体
+     * @param chain 过滤器链路
+     * @throws IOException IO异常
+     * @throws ServletException Servlet异常
+     */
+    @Override
+    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
+        HttpServletRequest hsr = (HttpServletRequest) request;
+        String path = hsr.getPathInfo();
+        String method = hsr.getMethod();
+        String key = String.format("%s:%s", method, path);
+        switcherService.register(key, Boolean.TRUE, key, QoS.API);
+        if (switcherService.isOpen(key)) {
+            chain.doFilter(request, response);
+        }
+    }
+
+}