@Deprecated ApiStatisticInterceptor

examcloud-web/src/main/java/cn/com/qmth/examcloud/web/interceptor/ApiStatisticInterceptor.java

@@ -1,117 +1,120 @@
 package cn.com.qmth.examcloud.web.interceptor;
 
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import org.springframework.web.servlet.HandlerInterceptor;
-
+import cn.com.qmth.examcloud.web.actuator.MetricNames;
+import cn.com.qmth.examcloud.web.actuator.MetricRegistryHolder;
+import cn.com.qmth.examcloud.web.bootstrap.PropertyHolder;
+import cn.com.qmth.examcloud.web.enums.HttpServletRequestAttribute;
+import cn.com.qmth.examcloud.web.support.ApiInfo;
 import com.codahale.metrics.Histogram;
 import com.codahale.metrics.Meter;
 import com.codahale.metrics.MetricRegistry;
 import com.codahale.metrics.Timer;
 import com.codahale.metrics.Timer.Context;
+import org.springframework.web.servlet.HandlerInterceptor;
 
-import cn.com.qmth.examcloud.web.actuator.MetricNames;
-import cn.com.qmth.examcloud.web.actuator.MetricRegistryHolder;
-import cn.com.qmth.examcloud.web.bootstrap.PropertyHolder;
-import cn.com.qmth.examcloud.web.enums.HttpServletRequestAttribute;
-import cn.com.qmth.examcloud.web.support.ApiInfo;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
 
 /**
  * API统计拦截器<br>
  * Timer 和 Histogram 只能使用一个<br>
  * Timer 为最近耗时<br>
  * Histogram 为全局耗时<br>
- * 
  *
  * @author WANGWEI
  * @date 2019年7月24日
  * @Copyright (c) 2018-? http://qmth.com.cn All Rights Reserved.
  */
+@Deprecated
 public class ApiStatisticInterceptor implements HandlerInterceptor {
 
-	private static String algorithm;
-
-	{
-		// 耗时直方图算法:U:uniform ; B:biased
-		algorithm = PropertyHolder.getString("$API.statistic.histograms.algorithm", "B");
-		if (!(algorithm.equals("B") || algorithm.equals("U"))) {
-			throw new RuntimeException("histograms algorithm must be 'U' or 'B'");
-		}
-	}
-
-	@Override
-	public boolean preHandle(HttpServletRequest request, HttpServletResponse response,
-			Object handler) throws Exception {
-
-		ApiInfo apiInfo = (ApiInfo) request
-				.getAttribute(HttpServletRequestAttribute.$_API_INFO.name());
-
-		if (null == apiInfo) {
-			return true;
-		}
-
-		// Timer 统计
-		if (algorithm.equals("B")) {
-			Timer timer = MetricRegistryHolder.getDefalut()
-					.timer(MetricRegistry.name(MetricNames.API_TIMER.name(), apiInfo.getMapping()));
-			Context ctx = timer.time();
-			request.setAttribute(HttpServletRequestAttribute.$_METRICS_TIMER_CTX.name(), ctx);
-		}
-
-		if (algorithm.equals("U")) {
-			request.setAttribute(
-					HttpServletRequestAttribute.API_STATISTIC_INTERCEPTOR_START_TIME.name(),
-					System.currentTimeMillis());
-		}
-
-		return true;
-	}
-
-	@Override
-	public void afterCompletion(HttpServletRequest request, HttpServletResponse response,
-			Object handler, Exception ex) throws Exception {
-
-		ApiInfo apiInfo = (ApiInfo) request
-				.getAttribute(HttpServletRequestAttribute.$_API_INFO.name());
-
-		if (null == apiInfo) {
-			return;
-		}
-
-		// Timer 统计
-		if (algorithm.equals("B")) {
-			Context ctx = (Context) request
-					.getAttribute(HttpServletRequestAttribute.$_METRICS_TIMER_CTX.name());
-			if (null != ctx) {
-				ctx.stop();
-			}
-		}
-
-		// Histogram 统计
-		if (algorithm.equals("U")) {
-			Histogram histogram = MetricRegistryHolder.getDefalut().histogram(
-					MetricRegistry.name(MetricNames.API_HISTOGRAM.name(), apiInfo.getMapping()));
-			Long startTime = (Long) request.getAttribute(
-					HttpServletRequestAttribute.API_STATISTIC_INTERCEPTOR_START_TIME.name());
-			histogram.update(System.currentTimeMillis() - startTime);
-		}
-
-		// 失败速率
-		Boolean hasException = (Boolean) request
-				.getAttribute(HttpServletRequestAttribute.$_EXCEPTION_HAPPENED.name());
-
-		if (null != hasException && hasException) {
-			Meter apiErrorMeter = MetricRegistryHolder.getDefalut().meter(
-					MetricRegistry.name(MetricNames.API_ERROR_METER.name(), apiInfo.getMapping()));
-			apiErrorMeter.mark();
-		}
-
-		// 请求速率
-		Meter apiMeter = MetricRegistryHolder.getDefalut()
-				.meter(MetricRegistry.name(MetricNames.API_METER.name(), apiInfo.getMapping()));
-		apiMeter.mark();
-
-	}
+    private static boolean enable = false;
+
+    private static String algorithm;
+
+    static {
+        // init();
+    }
+
+    private static void init() {
+        // 耗时直方图算法:U:uniform ; B:biased
+        algorithm = PropertyHolder.getString("$API.statistic.histograms.algorithm", "B");
+        if (!(algorithm.equals("B") || algorithm.equals("U"))) {
+            throw new RuntimeException("histograms algorithm must be 'U' or 'B'");
+        }
+    }
+
+    @Override
+    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+        if (!enable) {
+            return true;
+        }
+
+        ApiInfo apiInfo = (ApiInfo) request
+                .getAttribute(HttpServletRequestAttribute.$_API_INFO.name());
+
+        if (null == apiInfo) {
+            return true;
+        }
+
+        // Timer 统计
+        if (algorithm.equals("B")) {
+            Timer timer = MetricRegistryHolder.getDefalut()
+                    .timer(MetricRegistry.name(MetricNames.API_TIMER.name(), apiInfo.getMapping()));
+            Context ctx = timer.time();
+            request.setAttribute(HttpServletRequestAttribute.$_METRICS_TIMER_CTX.name(), ctx);
+        }
+
+        if (algorithm.equals("U")) {
+            request.setAttribute(
+                    HttpServletRequestAttribute.API_STATISTIC_INTERCEPTOR_START_TIME.name(),
+                    System.currentTimeMillis());
+        }
+
+        return true;
+    }
+
+    @Override
+    public void afterCompletion(HttpServletRequest request, HttpServletResponse response,
+                                Object handler, Exception ex) throws Exception {
+        if (!enable) {
+            return;
+        }
+
+        ApiInfo apiInfo = (ApiInfo) request.getAttribute(HttpServletRequestAttribute.$_API_INFO.name());
+        if (null == apiInfo) {
+            return;
+        }
+
+        // Timer 统计
+        if (algorithm.equals("B")) {
+            Context ctx = (Context) request.getAttribute(HttpServletRequestAttribute.$_METRICS_TIMER_CTX.name());
+            if (null != ctx) {
+                ctx.stop();
+            }
+        }
+
+        // Histogram 统计
+        if (algorithm.equals("U")) {
+            Histogram histogram = MetricRegistryHolder.getDefalut().histogram(MetricRegistry.name(MetricNames.API_HISTOGRAM.name(), apiInfo.getMapping()));
+            Long startTime = (Long) request.getAttribute(HttpServletRequestAttribute.API_STATISTIC_INTERCEPTOR_START_TIME.name());
+            histogram.update(System.currentTimeMillis() - startTime);
+        }
+
+        // 失败速率
+        Boolean hasException = (Boolean) request.getAttribute(HttpServletRequestAttribute.$_EXCEPTION_HAPPENED.name());
+
+        if (null != hasException && hasException) {
+            Meter apiErrorMeter = MetricRegistryHolder.getDefalut().meter(
+                    MetricRegistry.name(MetricNames.API_ERROR_METER.name(), apiInfo.getMapping()));
+            apiErrorMeter.mark();
+        }
+
+        // 请求速率
+        Meter apiMeter = MetricRegistryHolder.getDefalut()
+                .meter(MetricRegistry.name(MetricNames.API_METER.name(), apiInfo.getMapping()));
+        apiMeter.mark();
+
+    }
 
 }