format&clean example

apache · Feb 2, 2024 · 164bc64 · 164bc64
1 parent 171e831
commit 164bc64
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diff --git a/hugegraph-server/hugegraph-example/pom.xml b/hugegraph-server/hugegraph-example/pom.xml
@@ -15,8 +15,8 @@
   License for the specific language governing permissions and limitations
   under the License.
   -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <artifactId>hugegraph-server</artifactId>

diff --git a/hugegraph-server/hugegraph-example/src/main/java/org/apache/hugegraph/example/Example1.java b/hugegraph-server/hugegraph-example/src/main/java/org/apache/hugegraph/example/Example1.java
@@ -21,14 +21,6 @@
 import java.util.Iterator;
 import java.util.List;
 
-import org.apache.tinkerpop.gremlin.process.traversal.P;
-import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal;
-import org.apache.tinkerpop.gremlin.structure.Edge;
-import org.apache.tinkerpop.gremlin.structure.Graph;
-import org.apache.tinkerpop.gremlin.structure.T;
-import org.apache.tinkerpop.gremlin.structure.Vertex;
-import org.slf4j.Logger;
-
 import org.apache.hugegraph.HugeFactory;
 import org.apache.hugegraph.HugeGraph;
 import org.apache.hugegraph.backend.BackendException;
@@ -45,6 +37,13 @@
 import org.apache.hugegraph.type.define.Directions;
 import org.apache.hugegraph.type.define.HugeKeys;
 import org.apache.hugegraph.util.Log;
+import org.apache.tinkerpop.gremlin.process.traversal.P;
+import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal;
+import org.apache.tinkerpop.gremlin.structure.Edge;
+import org.apache.tinkerpop.gremlin.structure.Graph;
+import org.apache.tinkerpop.gremlin.structure.T;
+import org.apache.tinkerpop.gremlin.structure.Vertex;
+import org.slf4j.Logger;
 
 public class Example1 {
 
@@ -79,9 +78,9 @@ private static void thread(HugeGraph graph) throws InterruptedException {
             graph.tx().commit();
 
             // New tx
-            GraphTransaction tx =  Whitebox.invoke(graph.getClass(),
-                                                   "openGraphTransaction",
-                                                   graph);
+            GraphTransaction tx = Whitebox.invoke(graph.getClass(),
+                                                  "openGraphTransaction",
+                                                  graph);
 
             tx.addVertex(T.label, "book", "name", "java-21");
             tx.addVertex(T.label, "book", "name", "java-22");
@@ -214,13 +213,13 @@ public static void loadData(final HugeGraph graph) {
         graph.tx().commit();
 
         // must commit manually with new backend tx (independent of tinkerpop)
-        GraphTransaction tx =  Whitebox.invoke(graph.getClass(),
-                                               "openGraphTransaction",
-                                               graph);
+        GraphTransaction tx = Whitebox.invoke(graph.getClass(),
+                                              "openGraphTransaction",
+                                              graph);
 
         LOG.info("===============  addVertex  ================");
         Vertex james = tx.addVertex(T.label, "author", "id", 1,
-                                    "name", "James Gosling",  "age", 62,
+                                    "name", "James Gosling", "age", 62,
                                     "lived", "San Francisco Bay Area");
 
         Vertex java = tx.addVertex(T.label, "language", "name", "java",

diff --git a/hugegraph-server/hugegraph-example/src/main/java/org/apache/hugegraph/example/Example2.java b/hugegraph-server/hugegraph-example/src/main/java/org/apache/hugegraph/example/Example2.java
@@ -19,6 +19,10 @@
 
 import java.util.List;
 
+import org.apache.hugegraph.HugeFactory;
+import org.apache.hugegraph.HugeGraph;
+import org.apache.hugegraph.schema.SchemaManager;
+import org.apache.hugegraph.util.Log;
 import org.apache.tinkerpop.gremlin.process.traversal.P;
 import org.apache.tinkerpop.gremlin.process.traversal.Path;
 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal;
@@ -29,11 +33,6 @@
 import org.apache.tinkerpop.gremlin.structure.Vertex;
 import org.slf4j.Logger;
 
-import org.apache.hugegraph.HugeFactory;
-import org.apache.hugegraph.HugeGraph;
-import org.apache.hugegraph.schema.SchemaManager;
-import org.apache.hugegraph.util.Log;
-
 public class Example2 {
 
     private static final Logger LOG = Log.logger(Example2.class);
@@ -93,7 +92,7 @@ public static void traversal(final HugeGraph graph) {
 
         String person = graph.schema().getVertexLabel("person").id().asString();
         String software = graph.schema().getVertexLabel("software").id()
-                          .asString();
+                               .asString();
         String markoId = String.format("%s:%s", person, "marko");
         String joshId = String.format("%s:%s", person, "josh");
         String lopId = String.format("%s:%s", software, "lop");
@@ -122,30 +121,30 @@ public static void traversal(final HugeGraph graph) {
         assert paths.get(0).get(1).equals("lop");
 
         LOG.info(">>>> query with out() optimize: {}",
-                graph.traversal().V(markoId)
-                .out()
-                .out()
-                .values("name").toList());
+                 graph.traversal().V(markoId)
+                      .out()
+                      .out()
+                      .values("name").toList());
 
         LOG.info(">>>> query with out() optimize and path(): {}",
-                graph.traversal().V()
-                .out("knows")
-                .out("created")
-                .values("name")
-                .path()
-                .toList());
+                 graph.traversal().V()
+                      .out("knows")
+                      .out("created")
+                      .values("name")
+                      .path()
+                      .toList());
     }
 
     public static List<Path> shortestPath(final HugeGraph graph,
                                           Object from, Object to,
                                           int maxDepth) {
         GraphTraversal<Vertex, Path> t = graph.traversal()
-                .V(from)
-                .repeat(__.out().simplePath())
-                .until(__.hasId(to).or().loops().is(P.gt(maxDepth)))
-                .hasId(to)
-                .path().by("name")
-                .limit(1);
+                                              .V(from)
+                                              .repeat(__.out().simplePath())
+                                              .until(__.hasId(to).or().loops().is(P.gt(maxDepth)))
+                                              .hasId(to)
+                                              .path().by("name")
+                                              .limit(1);
         return t.toList();
     }
 

diff --git a/hugegraph-server/hugegraph-example/src/main/java/org/apache/hugegraph/example/Example3.java b/hugegraph-server/hugegraph-example/src/main/java/org/apache/hugegraph/example/Example3.java
@@ -17,14 +17,13 @@
 
 package org.apache.hugegraph.example;
 
-import org.apache.tinkerpop.gremlin.structure.T;
-import org.apache.tinkerpop.gremlin.structure.Vertex;
-import org.slf4j.Logger;
-
 import org.apache.hugegraph.HugeFactory;
 import org.apache.hugegraph.HugeGraph;
 import org.apache.hugegraph.schema.SchemaManager;
 import org.apache.hugegraph.util.Log;
+import org.apache.tinkerpop.gremlin.structure.T;
+import org.apache.tinkerpop.gremlin.structure.Vertex;
+import org.slf4j.Logger;
 
 public class Example3 {
 

diff --git a/...raph-server/hugegraph-example/src/main/java/org/apache/hugegraph/example/ExampleUtil.java b/...raph-server/hugegraph-example/src/main/java/org/apache/hugegraph/example/ExampleUtil.java
@@ -33,6 +33,7 @@
 import org.slf4j.Logger;
 
 public class ExampleUtil {
+
     private static final Logger LOG = Log.logger(ExampleUtil.class);
 
     private static boolean registered = false;
@@ -65,13 +66,13 @@ public static HugeGraph loadGraph(boolean needClear, boolean needProfile) {
         String conf = "hugegraph.properties";
         try {
             String path = ExampleUtil.class.getClassLoader()
-                                     .getResource(conf).getPath();
+                                           .getResource(conf).getPath();
             File file = new File(path);
             if (file.exists() && file.isFile()) {
                 conf = path;
             }
         } catch (Exception ignored) {
-            LOG.warn("loadGraph warn {} ",ignored);
+            LOG.warn("loadGraph warn {} ", ignored);
         }
 
         HugeGraph graph = HugeFactory.open(conf);