Fixed the startup failure cause by query protocol. (apache#1623)

oap-server/server-query-plugin/query-graphql-plugin/src/main/java/org/apache/skywalking/oap/query/graphql/resolver/AggregationQuery.java

@@ -19,13 +19,11 @@
 package org.apache.skywalking.oap.query.graphql.resolver;
 
 import com.coxautodev.graphql.tools.GraphQLQueryResolver;
-import java.util.Collections;
-import java.util.List;
-import org.apache.skywalking.oap.query.graphql.type.TopNCondition;
-import org.apache.skywalking.oap.query.graphql.type.TopNEntity;
+import java.util.*;
+import org.apache.skywalking.oap.query.graphql.type.*;
 
 public class AggregationQuery implements GraphQLQueryResolver {
-    public List<TopNEntity> getTopN(final TopNCondition condition) {
+    public List<TopNEntity> getTopN(final TopNCondition condition, final Duration duration) {
         return Collections.emptyList();
     }
 }

oap-server/server-query-plugin/query-graphql-plugin/src/main/java/org/apache/skywalking/oap/query/graphql/type/Call.java

@@ -21,8 +21,6 @@
 public class Call {
     private String source;
     private String target;
-    private boolean isAlert;
     private String callType;
     private long cpm;
-    private long avgResponseTime;
 }

oap-server/server-query-plugin/query-graphql-plugin/src/main/java/org/apache/skywalking/oap/query/graphql/type/ClusterBrief.java

@@ -20,7 +20,7 @@
 
 public class ClusterBrief {
     private int numOfService;
-    private int numOfServiceInstance;
+    private int numOfEndpoint;
     private int numOfDatabase;
     private int numOfCache;
     private int numOfMQ;