fix: User-controlled data in numeric cast [#1987] (#1996)

* fix: User-controlled data in numeric cast [#1987]
apache · Oct 30, 2022 · 66b1674 · 66b1674
1 parent c1d32a8
commit 66b1674
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diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/API.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/API.java
@@ -36,7 +36,6 @@
 import com.baidu.hugegraph.core.GraphManager;
 import com.baidu.hugegraph.define.Checkable;
 import com.baidu.hugegraph.metrics.MetricsUtil;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.util.E;
 import com.baidu.hugegraph.util.JsonUtil;
 import com.baidu.hugegraph.util.Log;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/AccessAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/AccessAPI.java
@@ -46,7 +46,6 @@
 import com.baidu.hugegraph.core.GraphManager;
 import com.baidu.hugegraph.define.Checkable;
 import com.baidu.hugegraph.exception.NotFoundException;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.util.E;
 import com.baidu.hugegraph.util.Log;
 import com.codahale.metrics.annotation.Timed;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/BelongAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/BelongAPI.java
@@ -45,7 +45,6 @@
 import com.baidu.hugegraph.core.GraphManager;
 import com.baidu.hugegraph.define.Checkable;
 import com.baidu.hugegraph.exception.NotFoundException;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.util.E;
 import com.baidu.hugegraph.util.Log;
 import com.codahale.metrics.annotation.Timed;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/GroupAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/GroupAPI.java
@@ -45,7 +45,6 @@
 import com.baidu.hugegraph.core.GraphManager;
 import com.baidu.hugegraph.define.Checkable;
 import com.baidu.hugegraph.exception.NotFoundException;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.util.E;
 import com.baidu.hugegraph.util.Log;
 import com.codahale.metrics.annotation.Timed;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/LoginAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/LoginAPI.java
@@ -47,7 +47,6 @@
 import com.baidu.hugegraph.auth.UserWithRole;
 import com.baidu.hugegraph.core.GraphManager;
 import com.baidu.hugegraph.define.Checkable;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.util.E;
 import com.baidu.hugegraph.util.Log;
 import com.codahale.metrics.annotation.Timed;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/ProjectAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/ProjectAPI.java
@@ -50,7 +50,6 @@
 import com.baidu.hugegraph.core.GraphManager;
 import com.baidu.hugegraph.define.Checkable;
 import com.baidu.hugegraph.exception.NotFoundException;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.util.E;
 import com.baidu.hugegraph.util.Log;
 import com.codahale.metrics.annotation.Timed;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/TargetAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/TargetAPI.java
@@ -45,7 +45,6 @@
 import com.baidu.hugegraph.core.GraphManager;
 import com.baidu.hugegraph.define.Checkable;
 import com.baidu.hugegraph.exception.NotFoundException;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.util.E;
 import com.baidu.hugegraph.util.JsonUtil;
 import com.baidu.hugegraph.util.Log;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/UserAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/auth/UserAPI.java
@@ -47,7 +47,6 @@
 import com.baidu.hugegraph.core.GraphManager;
 import com.baidu.hugegraph.define.Checkable;
 import com.baidu.hugegraph.exception.NotFoundException;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.util.E;
 import com.baidu.hugegraph.util.Log;
 import com.baidu.hugegraph.util.StringEncoding;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/filter/CompressInterceptor.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/filter/CompressInterceptor.java
@@ -36,7 +36,6 @@
 
 import org.slf4j.Logger;
 
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.util.Log;
 
 @Provider

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/job/ComputerAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/job/ComputerAPI.java
@@ -40,7 +40,6 @@
 import com.baidu.hugegraph.core.GraphManager;
 import com.baidu.hugegraph.job.ComputerJob;
 import com.baidu.hugegraph.job.JobBuilder;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.task.HugeTask;
 import com.baidu.hugegraph.util.E;
 import com.baidu.hugegraph.util.JsonUtil;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/job/GremlinAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/job/GremlinAPI.java
@@ -49,7 +49,6 @@
 import com.baidu.hugegraph.job.GremlinJob;
 import com.baidu.hugegraph.job.JobBuilder;
 import com.baidu.hugegraph.metrics.MetricsUtil;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.util.E;
 import com.baidu.hugegraph.util.JsonUtil;
 import com.baidu.hugegraph.util.Log;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/job/TaskAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/job/TaskAPI.java
@@ -49,7 +49,6 @@
 import com.baidu.hugegraph.backend.id.IdGenerator;
 import com.baidu.hugegraph.backend.page.PageInfo;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.task.HugeTask;
 import com.baidu.hugegraph.task.TaskScheduler;
 import com.baidu.hugegraph.task.TaskStatus;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/profile/GraphsAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/profile/GraphsAPI.java
@@ -50,7 +50,6 @@
 import com.baidu.hugegraph.auth.HugePermission;
 import com.baidu.hugegraph.config.HugeConfig;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.type.define.GraphMode;
 import com.baidu.hugegraph.type.define.GraphReadMode;
 import com.baidu.hugegraph.util.E;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/AdamicAdarAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/AdamicAdarAPI.java
@@ -67,7 +67,7 @@ public String get(@Context GraphManager manager,
                       @QueryParam("max_degree")
                       @DefaultValue(DEFAULT_MAX_DEGREE) long maxDegree,
                       @QueryParam("limit")
-                      @DefaultValue(DEFAULT_ELEMENTS_LIMIT) long limit) {
+                      @DefaultValue(DEFAULT_ELEMENTS_LIMIT) int limit) {
         LOG.debug("Graph [{}] get adamic adar between '{}' and '{}' with " +
                   "direction {}, edge label {}, max degree '{}' and limit '{}'",
                   graph, current, other, direction, edgeLabel, maxDegree,

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/AllShortestPathsAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/AllShortestPathsAPI.java
@@ -42,7 +42,6 @@
 import com.baidu.hugegraph.api.graph.VertexAPI;
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.traversal.algorithm.ShortestPathTraverser;
 import com.baidu.hugegraph.type.define.Directions;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/CountAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/CountAPI.java
@@ -41,7 +41,6 @@
 import com.baidu.hugegraph.api.API;
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.structure.HugeVertex;
 import com.baidu.hugegraph.traversal.algorithm.CountTraverser;
 import com.baidu.hugegraph.traversal.algorithm.steps.EdgeStep;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/CrosspointsAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/CrosspointsAPI.java
@@ -41,7 +41,6 @@
 import com.baidu.hugegraph.api.graph.VertexAPI;
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.traversal.algorithm.PathsTraverser;
 import com.baidu.hugegraph.type.define.Directions;
@@ -70,7 +69,7 @@ public String get(@Context GraphManager manager,
                       @QueryParam("capacity")
                       @DefaultValue(DEFAULT_CAPACITY) long capacity,
                       @QueryParam("limit")
-                      @DefaultValue(DEFAULT_PATHS_LIMIT) long limit) {
+                      @DefaultValue(DEFAULT_PATHS_LIMIT) int limit) {
         LOG.debug("Graph [{}] get crosspoints with paths from '{}', to '{}' " +
                   "with direction '{}', edge label '{}', max depth '{}', " +
                   "max degree '{}', capacity '{}' and limit '{}'",

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/CustomizedCrosspointsAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/CustomizedCrosspointsAPI.java
@@ -47,7 +47,6 @@
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.backend.query.QueryResults;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.traversal.algorithm.CustomizedCrosspointsTraverser;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.type.define.Directions;
@@ -141,7 +140,7 @@ private static class CrosspointsRequest {
         @JsonProperty("capacity")
         public long capacity = Long.parseLong(DEFAULT_CAPACITY);
         @JsonProperty("limit")
-        public long limit = Long.parseLong(DEFAULT_PATHS_LIMIT);
+        public int limit = Integer.parseInt(DEFAULT_PATHS_LIMIT);
         @JsonProperty("with_path")
         public boolean withPath = false;
         @JsonProperty("with_vertex")

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/CustomizedPathsAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/CustomizedPathsAPI.java
@@ -49,7 +49,6 @@
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.backend.query.QueryResults;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.traversal.algorithm.CustomizePathsTraverser;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.traversal.algorithm.steps.WeightedEdgeStep;
@@ -141,7 +140,7 @@ private static class PathRequest {
         @JsonProperty("capacity")
         public long capacity = Long.parseLong(DEFAULT_CAPACITY);
         @JsonProperty("limit")
-        public long limit = Long.parseLong(DEFAULT_PATHS_LIMIT);
+        public int limit = Integer.parseInt(DEFAULT_PATHS_LIMIT);
         @JsonProperty("with_vertex")
         public boolean withVertex = false;
 

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/EdgesAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/EdgesAPI.java
@@ -44,7 +44,6 @@
 import com.baidu.hugegraph.backend.query.ConditionQuery;
 import com.baidu.hugegraph.backend.store.Shard;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.structure.HugeEdge;
 import com.baidu.hugegraph.type.HugeType;
 import com.baidu.hugegraph.util.E;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/FusiformSimilarityAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/FusiformSimilarityAPI.java
@@ -43,7 +43,6 @@
 import com.baidu.hugegraph.api.API;
 import com.baidu.hugegraph.backend.query.QueryResults;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.traversal.algorithm.FusiformSimilarityTraverser;
 import com.baidu.hugegraph.traversal.algorithm.FusiformSimilarityTraverser.SimilarsMap;
 import com.baidu.hugegraph.type.define.Directions;
@@ -146,7 +145,7 @@ private static class FusiformSimilarityRequest {
         @JsonProperty("capacity")
         public long capacity = Long.parseLong(DEFAULT_CAPACITY);
         @JsonProperty("limit")
-        public long limit = Long.parseLong(DEFAULT_PATHS_LIMIT);
+        public int limit = Integer.parseInt(DEFAULT_PATHS_LIMIT);
         @JsonProperty("with_intermediary")
         public boolean withIntermediary = false;
         @JsonProperty("with_vertex")

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/JaccardSimilarityAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/JaccardSimilarityAPI.java
@@ -44,7 +44,6 @@
 import com.baidu.hugegraph.api.graph.VertexAPI;
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.structure.HugeVertex;
 import com.baidu.hugegraph.traversal.algorithm.steps.EdgeStep;
 import com.baidu.hugegraph.traversal.algorithm.JaccardSimilarTraverser;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/KneighborAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/KneighborAPI.java
@@ -49,7 +49,6 @@
 import com.baidu.hugegraph.backend.query.Query;
 import com.baidu.hugegraph.backend.query.QueryResults;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.structure.HugeVertex;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.traversal.algorithm.KneighborTraverser;
@@ -81,7 +80,7 @@ public String get(@Context GraphManager manager,
                       @QueryParam("max_degree")
                       @DefaultValue(DEFAULT_MAX_DEGREE) long maxDegree,
                       @QueryParam("limit")
-                      @DefaultValue(DEFAULT_ELEMENTS_LIMIT) long limit) {
+                      @DefaultValue(DEFAULT_ELEMENTS_LIMIT) int limit) {
         LOG.debug("Graph [{}] get k-neighbor from '{}' with " +
                   "direction '{}', edge label '{}', max depth '{}', " +
                   "max degree '{}' and limit '{}'",
@@ -172,7 +171,7 @@ private static class Request {
         @JsonProperty("max_depth")
         public int maxDepth;
         @JsonProperty("limit")
-        public long limit = Long.parseLong(DEFAULT_ELEMENTS_LIMIT);
+        public int limit = Integer.parseInt(DEFAULT_ELEMENTS_LIMIT);
         @JsonProperty("count_only")
         public boolean countOnly = false;
         @JsonProperty("with_vertex")

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/KoutAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/KoutAPI.java
@@ -50,7 +50,6 @@
 import com.baidu.hugegraph.backend.query.Query;
 import com.baidu.hugegraph.backend.query.QueryResults;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.structure.HugeVertex;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.traversal.algorithm.KoutTraverser;
@@ -86,7 +85,7 @@ public String get(@Context GraphManager manager,
                       @QueryParam("capacity")
                       @DefaultValue(DEFAULT_CAPACITY) long capacity,
                       @QueryParam("limit")
-                      @DefaultValue(DEFAULT_ELEMENTS_LIMIT) long limit) {
+                      @DefaultValue(DEFAULT_ELEMENTS_LIMIT) int limit) {
         LOG.debug("Graph [{}] get k-out from '{}' with " +
                   "direction '{}', edge label '{}', max depth '{}', nearest " +
                   "'{}', max degree '{}', capacity '{}' and limit '{}'",
@@ -188,7 +187,7 @@ private static class Request {
         @JsonProperty("capacity")
         public long capacity = Long.parseLong(DEFAULT_CAPACITY);
         @JsonProperty("limit")
-        public long limit = Long.parseLong(DEFAULT_ELEMENTS_LIMIT);
+        public int limit = Integer.parseInt(DEFAULT_ELEMENTS_LIMIT);
         @JsonProperty("with_vertex")
         public boolean withVertex = false;
         @JsonProperty("with_path")

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/MultiNodeShortestPathAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/MultiNodeShortestPathAPI.java
@@ -42,7 +42,6 @@
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.backend.query.QueryResults;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.traversal.algorithm.steps.EdgeStep;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.traversal.algorithm.MultiNodeShortestPathTraverser;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/NeighborRankAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/NeighborRankAPI.java
@@ -42,7 +42,6 @@
 import com.baidu.hugegraph.api.API;
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.structure.HugeVertex;
 import com.baidu.hugegraph.traversal.algorithm.NeighborRankTraverser;
 import com.baidu.hugegraph.type.define.Directions;

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/PathsAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/PathsAPI.java
@@ -50,7 +50,6 @@
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.backend.query.QueryResults;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.traversal.algorithm.CollectionPathsTraverser;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.traversal.algorithm.PathsTraverser;
@@ -83,7 +82,7 @@ public String get(@Context GraphManager manager,
                       @QueryParam("capacity")
                       @DefaultValue(DEFAULT_CAPACITY) long capacity,
                       @QueryParam("limit")
-                      @DefaultValue(DEFAULT_PATHS_LIMIT) long limit) {
+                      @DefaultValue(DEFAULT_PATHS_LIMIT) int limit) {
         LOG.debug("Graph [{}] get paths from '{}', to '{}' with " +
                   "direction {}, edge label {}, max depth '{}', " +
                   "max degree '{}', capacity '{}' and limit '{}'",
@@ -169,7 +168,7 @@ private static class Request {
         @JsonProperty("capacity")
         public long capacity = Long.parseLong(DEFAULT_CAPACITY);
         @JsonProperty("limit")
-        public long limit = Long.parseLong(DEFAULT_PATHS_LIMIT);
+        public int limit = Integer.parseInt(DEFAULT_PATHS_LIMIT);
         @JsonProperty("with_vertex")
         public boolean withVertex = false;
 

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/PersonalRankAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/PersonalRankAPI.java
@@ -40,7 +40,6 @@
 import com.baidu.hugegraph.api.API;
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.structure.HugeVertex;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.traversal.algorithm.PersonalRankTraverser;
@@ -121,7 +120,7 @@ private static class RankRequest {
         @JsonProperty("max_degree")
         private long maxDegree = Long.parseLong(DEFAULT_MAX_DEGREE);
         @JsonProperty("limit")
-        private long limit = Long.parseLong(DEFAULT_LIMIT);
+        private int limit = Integer.parseInt(DEFAULT_LIMIT);
         @JsonProperty("max_depth")
         private int maxDepth = DEFAULT_DEPTH;
         @JsonProperty("with_label")

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/RaysAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/RaysAPI.java
@@ -41,7 +41,6 @@
 import com.baidu.hugegraph.api.graph.VertexAPI;
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.traversal.algorithm.SubGraphTraverser;
 import com.baidu.hugegraph.type.define.Directions;
@@ -69,7 +68,7 @@ public String get(@Context GraphManager manager,
                       @QueryParam("capacity")
                       @DefaultValue(DEFAULT_CAPACITY) long capacity,
                       @QueryParam("limit")
-                      @DefaultValue(DEFAULT_PATHS_LIMIT) long limit) {
+                      @DefaultValue(DEFAULT_PATHS_LIMIT) int limit) {
         LOG.debug("Graph [{}] get rays paths from '{}' with " +
                   "direction '{}', edge label '{}', max depth '{}', " +
                   "max degree '{}', capacity '{}' and limit '{}'",

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/ResourceAllocationAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/ResourceAllocationAPI.java
@@ -67,7 +67,7 @@ public String create(@Context GraphManager manager,
                          @QueryParam("max_degree")
                          @DefaultValue(DEFAULT_MAX_DEGREE) long maxDegree,
                          @QueryParam("limit")
-                         @DefaultValue(DEFAULT_ELEMENTS_LIMIT) long limit) {
+                         @DefaultValue(DEFAULT_ELEMENTS_LIMIT) int limit) {
         LOG.debug("Graph [{}] get resource allocation between '{}' and '{}' " +
                   "with direction {}, edge label {}, max degree '{}' and " +
                   "limit '{}'", graph, current, other, direction, edgeLabel,

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/RingsAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/RingsAPI.java
@@ -41,7 +41,6 @@
 import com.baidu.hugegraph.api.graph.VertexAPI;
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.traversal.algorithm.SubGraphTraverser;
 import com.baidu.hugegraph.type.define.Directions;
@@ -71,7 +70,7 @@ public String get(@Context GraphManager manager,
                       @QueryParam("capacity")
                       @DefaultValue(DEFAULT_CAPACITY) long capacity,
                       @QueryParam("limit")
-                      @DefaultValue(DEFAULT_PATHS_LIMIT) long limit) {
+                      @DefaultValue(DEFAULT_PATHS_LIMIT) int limit) {
         LOG.debug("Graph [{}] get rings paths reachable from '{}' with " +
                   "direction '{}', edge label '{}', max depth '{}', " +
                   "source in ring '{}', max degree '{}', capacity '{}' " +

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/SameNeighborsAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/SameNeighborsAPI.java
@@ -42,7 +42,6 @@
 import com.baidu.hugegraph.api.graph.VertexAPI;
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.traversal.algorithm.SameNeighborTraverser;
 import com.baidu.hugegraph.type.define.Directions;
 import com.baidu.hugegraph.util.Log;
@@ -67,7 +66,7 @@ public String get(@Context GraphManager manager,
                       @QueryParam("max_degree")
                       @DefaultValue(DEFAULT_MAX_DEGREE) long maxDegree,
                       @QueryParam("limit")
-                      @DefaultValue(DEFAULT_ELEMENTS_LIMIT) long limit) {
+                      @DefaultValue(DEFAULT_ELEMENTS_LIMIT) int limit) {
         LOG.debug("Graph [{}] get same neighbors between '{}' and '{}' with " +
                   "direction {}, edge label {}, max degree '{}' and limit '{}'",
                   graph, vertex, other, direction, edgeLabel, maxDegree, limit);

diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/ShortestPathAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/traversers/ShortestPathAPI.java
@@ -42,7 +42,6 @@
 import com.baidu.hugegraph.api.graph.VertexAPI;
 import com.baidu.hugegraph.backend.id.Id;
 import com.baidu.hugegraph.core.GraphManager;
-import com.baidu.hugegraph.server.RestServer;
 import com.baidu.hugegraph.traversal.algorithm.HugeTraverser;
 import com.baidu.hugegraph.traversal.algorithm.ShortestPathTraverser;
 import com.baidu.hugegraph.type.define.Directions;