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SteelBridge Labs Neo4J Gremlin (Bolt) integration
/*
* Copyright 2016 SteelBridge Laboratories, LLC.
*
* Licensed 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.
*
* For more information: http://steelbridgelabs.com
*/
package com.steelbridgelabs.oss.neo4j.structure;
import org.apache.tinkerpop.gremlin.structure.Graph;
import org.apache.tinkerpop.gremlin.structure.VertexProperty;
import org.apache.tinkerpop.gremlin.structure.util.FeatureDescriptor;
import org.apache.tinkerpop.gremlin.structure.util.StringFactory;
/**
* @author Rogelio J. Baucells
*/
public final class Neo4JGraphFeatures implements Graph.Features {
private static class Neo4JGraphGraphFeatures implements GraphFeatures {
private static class Neo4JVariableFeatures implements VariableFeatures {
@Override
@FeatureDescriptor(name = FEATURE_BOOLEAN_VALUES)
public boolean supportsBooleanValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_BYTE_VALUES)
public boolean supportsByteValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_DOUBLE_VALUES)
public boolean supportsDoubleValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_FLOAT_VALUES)
public boolean supportsFloatValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_INTEGER_VALUES)
public boolean supportsIntegerValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_LONG_VALUES)
public boolean supportsLongValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_MAP_VALUES)
public boolean supportsMapValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_MIXED_LIST_VALUES)
public boolean supportsMixedListValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_BOOLEAN_ARRAY_VALUES)
public boolean supportsBooleanArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_BYTE_ARRAY_VALUES)
public boolean supportsByteArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_DOUBLE_ARRAY_VALUES)
public boolean supportsDoubleArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_FLOAT_ARRAY_VALUES)
public boolean supportsFloatArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_INTEGER_ARRAY_VALUES)
public boolean supportsIntegerArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_STRING_ARRAY_VALUES)
public boolean supportsStringArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_LONG_ARRAY_VALUES)
public boolean supportsLongArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_SERIALIZABLE_VALUES)
public boolean supportsSerializableValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_STRING_VALUES)
public boolean supportsStringValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_UNIFORM_LIST_VALUES)
public boolean supportsUniformListValues() {
return false;
}
}
private VariableFeatures variableFeatures = new Neo4JVariableFeatures();
@Override
public VariableFeatures variables() {
return variableFeatures;
}
@Override
@FeatureDescriptor(name = FEATURE_COMPUTER)
public boolean supportsComputer() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_THREADED_TRANSACTIONS)
public boolean supportsThreadedTransactions() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_IO_READ)
public boolean supportsIoRead() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_IO_WRITE)
public boolean supportsIoWrite() {
return false;
}
}
private static class Neo4JVertexFeatures extends Neo4JElementFeatures implements VertexFeatures {
private static class Neo4JVertexPropertyFeatures implements VertexPropertyFeatures {
private final boolean readonly;
Neo4JVertexPropertyFeatures(boolean readonly) {
this.readonly = readonly;
}
@Override
@FeatureDescriptor(name = FEATURE_REMOVE_PROPERTY)
public boolean supportsRemoveProperty() {
return !readonly;
}
@Override
@FeatureDescriptor(name = FEATURE_USER_SUPPLIED_IDS)
public boolean supportsUserSuppliedIds() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_STRING_IDS)
public boolean supportsStringIds() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_UUID_IDS)
public boolean supportsUuidIds() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_CUSTOM_IDS)
public boolean supportsCustomIds() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_ANY_IDS)
public boolean supportsAnyIds() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_SERIALIZABLE_VALUES)
public boolean supportsSerializableValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_BYTE_VALUES)
public boolean supportsByteValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_FLOAT_VALUES)
public boolean supportsFloatValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_INTEGER_VALUES)
public boolean supportsIntegerValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_MAP_VALUES)
public boolean supportsMapValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_MIXED_LIST_VALUES)
public boolean supportsMixedListValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_BOOLEAN_ARRAY_VALUES)
public boolean supportsBooleanArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_BYTE_ARRAY_VALUES)
public boolean supportsByteArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_DOUBLE_ARRAY_VALUES)
public boolean supportsDoubleArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_FLOAT_ARRAY_VALUES)
public boolean supportsFloatArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_INTEGER_ARRAY_VALUES)
public boolean supportsIntegerArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_STRING_ARRAY_VALUES)
public boolean supportsStringArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_LONG_ARRAY_VALUES)
public boolean supportsLongArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_UNIFORM_LIST_VALUES)
public boolean supportsUniformListValues() {
return false;
}
}
private final VertexPropertyFeatures vertexPropertyFeatures;
private final boolean readonly;
Neo4JVertexFeatures(boolean readonly) {
super(readonly);
// initialize fields
this.readonly = readonly;
this.vertexPropertyFeatures = new Neo4JVertexPropertyFeatures(readonly);
}
@Override
@FeatureDescriptor(name = FEATURE_ADD_VERTICES)
public boolean supportsAddVertices() {
return !readonly;
}
@Override
@FeatureDescriptor(name = FEATURE_REMOVE_VERTICES)
public boolean supportsRemoveVertices() {
return !readonly;
}
@Override
public VertexPropertyFeatures properties() {
return vertexPropertyFeatures;
}
@Override
@FeatureDescriptor(name = FEATURE_META_PROPERTIES)
public boolean supportsMetaProperties() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_MULTI_PROPERTIES)
public boolean supportsMultiProperties() {
return false;
}
@Override
public VertexProperty.Cardinality getCardinality(final String key) {
return VertexProperty.Cardinality.single;
}
}
private static class Neo4JEdgeFeatures extends Neo4JElementFeatures implements EdgeFeatures {
private static class Neo4JEdgePropertyFeatures implements EdgePropertyFeatures {
@Override
@FeatureDescriptor(name = FEATURE_SERIALIZABLE_VALUES)
public boolean supportsSerializableValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_BYTE_VALUES)
public boolean supportsByteValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_FLOAT_VALUES)
public boolean supportsFloatValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_INTEGER_VALUES)
public boolean supportsIntegerValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_MAP_VALUES)
public boolean supportsMapValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_MIXED_LIST_VALUES)
public boolean supportsMixedListValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_BOOLEAN_ARRAY_VALUES)
public boolean supportsBooleanArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_BYTE_ARRAY_VALUES)
public boolean supportsByteArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_DOUBLE_ARRAY_VALUES)
public boolean supportsDoubleArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_FLOAT_ARRAY_VALUES)
public boolean supportsFloatArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_INTEGER_ARRAY_VALUES)
public boolean supportsIntegerArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_STRING_ARRAY_VALUES)
public boolean supportsStringArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_LONG_ARRAY_VALUES)
public boolean supportsLongArrayValues() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_UNIFORM_LIST_VALUES)
public boolean supportsUniformListValues() {
return false;
}
}
private final EdgePropertyFeatures edgePropertyFeatures = new Neo4JEdgePropertyFeatures();
private final boolean readonly;
Neo4JEdgeFeatures(boolean readonly) {
super(readonly);
this.readonly = readonly;
}
@Override
@FeatureDescriptor(name = FEATURE_ADD_EDGES)
public boolean supportsAddEdges() {
return !readonly;
}
@Override
@FeatureDescriptor(name = FEATURE_REMOVE_EDGES)
public boolean supportsRemoveEdges() {
return !readonly;
}
@Override
public EdgePropertyFeatures properties() {
return edgePropertyFeatures;
}
}
private static class Neo4JElementFeatures implements ElementFeatures {
private final boolean readonly;
Neo4JElementFeatures(boolean readonly) {
this.readonly = readonly;
}
@Override
@FeatureDescriptor(name = FEATURE_ADD_PROPERTY)
public boolean supportsAddProperty() {
return !readonly;
}
@Override
@FeatureDescriptor(name = FEATURE_REMOVE_PROPERTY)
public boolean supportsRemoveProperty() {
return !readonly;
}
@Override
@FeatureDescriptor(name = FEATURE_USER_SUPPLIED_IDS)
public boolean supportsUserSuppliedIds() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_STRING_IDS)
public boolean supportsStringIds() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_UUID_IDS)
public boolean supportsUuidIds() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_ANY_IDS)
public boolean supportsAnyIds() {
return false;
}
@Override
@FeatureDescriptor(name = FEATURE_CUSTOM_IDS)
public boolean supportsCustomIds() {
return false;
}
}
private final GraphFeatures graphFeatures = new Neo4JGraphGraphFeatures();
private final VertexFeatures vertexFeatures;
private final EdgeFeatures edgeFeatures;
Neo4JGraphFeatures(boolean readonly) {
// initialize fields
this.vertexFeatures = new Neo4JVertexFeatures(readonly);
this.edgeFeatures = new Neo4JEdgeFeatures(readonly);
}
@Override
public GraphFeatures graph() {
return graphFeatures;
}
@Override
public VertexFeatures vertex() {
return vertexFeatures;
}
@Override
public EdgeFeatures edge() {
return edgeFeatures;
}
@Override
public String toString() {
return StringFactory.featureString(this);
}
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