feat(client): support "parent & child" EdgeLabel type

.github/workflows/client-ci.yml

@@ -25,16 +25,16 @@ jobs:
       USE_STAGE: 'true' # Whether to include the stage repository.
       TRAVIS_DIR: hugegraph-client/assembly/travis
       # TODO: replace it with the (latest - n) commit id (n >= 15)
-      COMMIT_ID: 6a4041e
+      COMMIT_ID: f6f3708
     strategy:
       fail-fast: false
       matrix:
         JAVA_VERSION: [ '8' ]
     steps:
-      - name: Install JDK 8
+      - name: Install JDK 11 for server environment
         uses: actions/setup-java@v3
         with:
-          java-version: ${{ matrix.JAVA_VERSION }}
+          java-version: 11
           distribution: 'zulu'
 
       - name: Cache Maven packages
@@ -63,6 +63,12 @@ jobs:
         run: |
           $TRAVIS_DIR/install-hugegraph-from-source.sh $COMMIT_ID
 
+      - name: Install Java ${{ matrix.JAVA_VERSION }} for client
+        uses: actions/setup-java@v3
+        with:
+          java-version: ${{ matrix.JAVA_VERSION }}
+          distribution: 'zulu'
+
       - name: Run test
         run: |
           cd hugegraph-client && ls *

.github/workflows/loader-ci.yml

@@ -27,7 +27,7 @@ jobs:
       TRAVIS_DIR: hugegraph-loader/assembly/travis
       STATIC_DIR: hugegraph-loader/assembly/static
       # TODO: replace it with the (latest - n) commit id (n >= 15)
-      COMMIT_ID: 6a4041e
+      COMMIT_ID: f6f3708
       DB_USER: root
       DB_PASS: root
       DB_DATABASE: load_test

.github/workflows/spark-connector-ci.yml

@@ -25,7 +25,7 @@ jobs:
     env:
       USE_STAGE: 'true' # Whether to include the stage repository.
       TRAVIS_DIR: hugegraph-spark-connector/assembly/travis
-      COMMIT_ID: 6a4041e
+      COMMIT_ID: f6f3708
     steps:
       - name: Install JDK 11
         uses: actions/setup-java@v4

hugegraph-client/pom.xml

@@ -27,6 +27,7 @@
     </parent>
 
     <artifactId>hugegraph-client</artifactId>
+    <version>${revision}</version>
     <packaging>jar</packaging>
 
     <name>${project.artifactId}</name>
@@ -48,6 +49,9 @@
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
+            <!-- TODO: current version(2.8.48) will meet error when using java11 to test unit/RestResultTest,
+            switch to 2.25.1 will temporarily solve this problem -->
+            <version>${mockito.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>

hugegraph-client/src/main/java/org/apache/hugegraph/structure/GraphElement.java

@@ -77,6 +77,7 @@ public GraphElement property(String name, Object value) {
         E.checkArgument(ReflectionUtil.isSimpleType(clazz) ||
                         clazz.equals(UUID.class) ||
                         clazz.equals(Date.class) ||
+                        clazz.equals(byte[].class) ||
                         value instanceof List ||
                         value instanceof Set,
                         "Invalid property value type: '%s'", clazz);

hugegraph-client/src/main/java/org/apache/hugegraph/structure/constant/EdgeLabelType.java

@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with this
+ * work for additional information regarding copyright ownership. The ASF
+ * licenses this file to You under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.hugegraph.structure.constant;
+
+public enum EdgeLabelType {
+
+    NORMAL(0, "NORMAL"),
+
+    PARENT(1, "PARENT"),
+
+    SUB(2, "SUB");
+
+    private byte code = 0;
+    private String name = null;
+
+    EdgeLabelType(int code, String name) {
+        assert code < 256;
+        this.code = (byte) code;
+        this.name = name;
+    }
+
+    public boolean parent() {
+        return this == PARENT;
+    }
+
+    public boolean sub() {
+        return this == SUB;
+    }
+
+    public boolean normal() {
+        return this == NORMAL;
+    }
+
+    public byte code() {
+        return this.code;
+    }
+
+    public String string() {
+        return this.name;
+    }
+}

hugegraph-client/src/main/java/org/apache/hugegraph/structure/graph/Edge.java

@@ -142,10 +142,10 @@ public void targetLabel(String targetLabel) {
     public String name() {
         if (this.name == null) {
             String[] idParts = SplicingIdGenerator.split(this.id);
-            E.checkState(idParts.length == 4,
-                         "The edge id must be formatted by 4 parts, " +
+            E.checkState(idParts.length == 5 || idParts.length == 6,
+                         "The edge id must be formatted by 5~6 parts, " +
                          "actual is %s", idParts.length);
-            this.name = idParts[2];
+            this.name = idParts[idParts.length - 2];
         }
         return this.name;
     }