updated tinkerpop version to 3.8.0 (#24)

Author: rashtao

pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.apache.tinkerpop</groupId>
         <artifactId>tinkerpop</artifactId>
-        <version>3.7.5</version>
+        <version>3.8.0</version>
     </parent>
 
     <groupId>com.arangodb</groupId>
@@ -369,7 +369,7 @@
                                 </requireJavaVersion>
                                 <enforceBytecodeVersion>
                                     <scopes>compile</scopes>
-                                    <maxJdkVersion>1.8</maxJdkVersion>
+                                    <maxJdkVersion>11</maxJdkVersion>
                                 </enforceBytecodeVersion>
                                 <requirePluginVersions/>
                                 <requireExplicitDependencyScope/>

src/main/java/com/arangodb/tinkerpop/gremlin/process/filter/ArangoFilter.java

@@ -16,6 +16,7 @@
 
 package com.arangodb.tinkerpop.gremlin.process.filter;
 
+import org.apache.tinkerpop.gremlin.process.traversal.NotP;
 import org.apache.tinkerpop.gremlin.process.traversal.P;
 import org.apache.tinkerpop.gremlin.process.traversal.util.AndP;
 import org.apache.tinkerpop.gremlin.process.traversal.util.OrP;
@@ -61,6 +62,11 @@ static ArangoFilter of(String key, P<?> p) {
                 return new TextRegexFilter(key, (String) p.getValue());
             case "notRegex":
                 return NotFilter.of(new TextRegexFilter(key, (String) p.getValue()));
+            case "not":
+                if (p instanceof NotP) {
+                    return NotFilter.of(of(key, ((NotP<?>) p).negate()));
+                }
+                throw new UnsupportedOperationException("Unsupported predicate: " + p);
             case "or":
                 if (p instanceof OrP) {
                     return OrFilter.of(((OrP<?>) p).getPredicates().stream()

src/main/java/com/arangodb/tinkerpop/gremlin/process/traversal/step/ArangoStep.java

@@ -38,7 +38,7 @@
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
-public final class ArangoStep<S, E extends Element> extends GraphStep<S, E> implements HasContainerHolder {
+public final class ArangoStep<S, E extends Element> extends GraphStep<S, E> implements HasContainerHolder<S, E> {
 
     private final List<HasContainer> hasContainers = new ArrayList<>();
 

src/main/java/com/arangodb/tinkerpop/gremlin/process/traversal/strategy/optimization/ArangoStepStrategy.java

@@ -28,6 +28,8 @@
 import org.apache.tinkerpop.gremlin.process.traversal.strategy.AbstractTraversalStrategy;
 import org.apache.tinkerpop.gremlin.process.traversal.util.TraversalHelper;
 
+import java.util.List;
+
 public final class ArangoStepStrategy extends AbstractTraversalStrategy<TraversalStrategy.ProviderOptimizationStrategy> implements TraversalStrategy.ProviderOptimizationStrategy {
 
     private static final ArangoStepStrategy INSTANCE = new ArangoStepStrategy();
@@ -53,7 +55,8 @@ public void apply(final Traversal.Admin<?, ?> traversal) {
             Step<?, ?> currentStep = arangoStep.getNextStep();
             while (currentStep instanceof HasStep || currentStep instanceof NoOpBarrierStep) {
                 if (currentStep instanceof HasStep) {
-                    for (final HasContainer hasContainer : ((HasContainerHolder) currentStep).getHasContainers()) {
+                    List<HasContainer> hasContainers = ((HasContainerHolder) currentStep).getHasContainers();
+                    for (final HasContainer hasContainer : hasContainers) {
                         if (!GraphStep.processHasContainerIds(arangoStep, hasContainer))
                             arangoStep.addHasContainer(hasContainer);
                     }

test-console/test.sh

@@ -20,5 +20,5 @@ docker cp "$LOCATION"/arangodb.yaml tinkerpop-data:/arangodb
 
 docker run \
   --volumes-from tinkerpop-data \
-  docker.io/tinkerpop/gremlin-console:3.7.5 \
+  docker.io/tinkerpop/gremlin-console:3.8.0 \
   -e /arangodb/test.groovy

test-plugin/java-client/pom.xml

@@ -18,7 +18,7 @@
         <dependency>
             <groupId>org.apache.tinkerpop</groupId>
             <artifactId>gremlin-driver</artifactId>
-            <version>3.7.5</version>
+            <version>3.8.0</version>
         </dependency>
         <dependency>
             <groupId>org.assertj</groupId>

test-plugin/test.sh

@@ -26,7 +26,7 @@ docker run -d \
   --name gremlin-server \
   --expose 8182 \
   -p 172.28.0.1:8182:8182 \
-  docker.io/tinkerpop/gremlin-server:3.7.5
+  docker.io/tinkerpop/gremlin-server:3.8.0
 
 until curl http://172.28.0.1:8182 > /dev/null 2>&1 ; do
   printf ':'
@@ -40,7 +40,7 @@ docker run \
   --volumes-from tinkerpop-data \
   --name gremlin-console \
   --add-host=gremlin-server:172.28.0.1 \
-  docker.io/tinkerpop/gremlin-console:3.7.5 \
+  docker.io/tinkerpop/gremlin-console:3.8.0 \
   -e /arangodb/test.groovy
 
 ## test from java