Fix operation name is empty issue (#1525)

apm-sniffer/apm-sdk-plugin/httpClient-4.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/httpClient/v4/HttpClientExecuteInterceptor.java

@@ -19,12 +19,21 @@
 package org.apache.skywalking.apm.plugin.httpClient.v4;
 
 import java.lang.reflect.Method;
+import java.net.MalformedURLException;
 import java.net.URL;
-import org.apache.http.*;
-import org.apache.skywalking.apm.agent.core.context.*;
+import org.apache.http.HttpHost;
+import org.apache.http.HttpRequest;
+import org.apache.http.HttpResponse;
+import org.apache.http.StatusLine;
+import org.apache.skywalking.apm.agent.core.context.CarrierItem;
+import org.apache.skywalking.apm.agent.core.context.ContextCarrier;
+import org.apache.skywalking.apm.agent.core.context.ContextManager;
 import org.apache.skywalking.apm.agent.core.context.tag.Tags;
-import org.apache.skywalking.apm.agent.core.context.trace.*;
-import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.*;
+import org.apache.skywalking.apm.agent.core.context.trace.AbstractSpan;
+import org.apache.skywalking.apm.agent.core.context.trace.SpanLayer;
+import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.EnhancedInstance;
+import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstanceMethodsAroundInterceptor;
+import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.MethodInterceptResult;
 import org.apache.skywalking.apm.network.trace.component.ComponentsDefine;
 
 public class HttpClientExecuteInterceptor implements InstanceMethodsAroundInterceptor {
@@ -43,7 +52,8 @@ public class HttpClientExecuteInterceptor implements InstanceMethodsAroundInterc
             "https".equals(httpHost.getSchemeName().toLowerCase()) ? 443 : 80);
 
         String uri = httpRequest.getRequestLine().getUri();
-        String operationName = uri.startsWith("http") ? new URL(uri).getPath() : uri;
+        String requestURI = getRequestURI(uri);
+        String operationName = uri.startsWith("http") ? requestURI : uri;
         AbstractSpan span = ContextManager.createExitSpan(operationName, contextCarrier, remotePeer);
 
         span.setComponent(ComponentsDefine.HTTPCLIENT);
@@ -76,7 +86,7 @@ public class HttpClientExecuteInterceptor implements InstanceMethodsAroundInterc
                 }
             }
         }
-        
+
         ContextManager.stopSpan();
         return ret;
     }
@@ -87,4 +97,9 @@ public class HttpClientExecuteInterceptor implements InstanceMethodsAroundInterc
         activeSpan.errorOccurred();
         activeSpan.log(t);
     }
+
+    private String getRequestURI(String uri) throws MalformedURLException {
+        String requestPath = new URL(uri).getPath();
+        return requestPath != null && requestPath.length() > 0 ? requestPath : "/";
+    }
 }