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diff --git a/src/main/java/org/onap/aai/dbgen/GraphSONPartialIO.java b/src/main/java/org/onap/aai/dbgen/GraphSONPartialIO.java
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+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.aai.dbgen;
+
+import org.apache.tinkerpop.gremlin.structure.Graph;
+import org.apache.tinkerpop.gremlin.structure.io.Io;
+import org.apache.tinkerpop.gremlin.structure.io.IoRegistry;
+import org.apache.tinkerpop.gremlin.structure.io.Mapper;
+import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONMapper;
+import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONReader;
+import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONVersion;
+import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONWriter;
+
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.Optional;
+import java.util.function.Consumer;
+
+/**
+ * Constructs GraphSON IO implementations given a {@link Graph} and {@link IoRegistry}. Implementers of the {@link Graph}
+ * interfaces should see the {@link GraphSONMapper} for information on the expectations for the {@link IoRegistry}.
+ *
+ * @author Stephen Mallette (http://stephen.genoprime.com)
+ */
+public final class GraphSONPartialIO implements Io<GraphSONPartialReader.Builder, GraphSONWriter.Builder, GraphSONMapper.Builder> {
+    private final IoRegistry registry;
+    private final Graph graph;
+    private final Optional<Consumer<Mapper.Builder>> onMapper;
+    private final GraphSONVersion version;
+
+    private GraphSONPartialIO(final Builder builder) {
+        this.registry = builder.registry;
+        this.graph = builder.graph;
+        this.onMapper = Optional.ofNullable(builder.onMapper);
+        this.version = builder.version;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public GraphSONPartialReader.Builder reader() {
+        return GraphSONPartialReader.build().mapper(mapper().create());
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public GraphSONWriter.Builder writer() {
+        return GraphSONWriter.build().mapper(mapper().create());
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public GraphSONMapper.Builder mapper() {
+        final GraphSONMapper.Builder builder = (null == this.registry) ?
+                GraphSONMapper.build().version(version) : GraphSONMapper.build().version(version).addRegistry(this.registry);
+        onMapper.ifPresent(c -> c.accept(builder));
+        return builder;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void writeGraph(final String file) throws IOException {
+        try (final OutputStream out = new FileOutputStream(file)) {
+            writer().create().writeGraph(out, graph);
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void readGraph(final String file) throws IOException {
+        try (final InputStream in = new FileInputStream(file)) {
+            reader().create().readGraph(in, graph);
+        }
+    }
+
+    /**
+     * Create a new builder using the default version of GraphSON.
+     */
+    public static Io.Builder<GraphSONPartialIO> build() {
+        return build(GraphSONVersion.V1_0);
+    }
+
+    /**
+     * Create a new builder using the specified version of GraphSON.
+     */
+    public static Io.Builder<GraphSONPartialIO> build(final GraphSONVersion version) {
+        return new Builder(version);
+    }
+
+    public final static class Builder implements Io.Builder<GraphSONPartialIO> {
+
+        private IoRegistry registry = null;
+        private Graph graph;
+        private Consumer<Mapper.Builder> onMapper = null;
+        private final GraphSONVersion version;
+
+        Builder(final GraphSONVersion version) {
+            this.version = version;
+        }
+
+        /**
+         * @deprecated As of release 3.2.2, replaced by {@link #onMapper(Consumer)}.
+         */
+        @Deprecated
+        @Override
+        public Io.Builder<GraphSONPartialIO> registry(final IoRegistry registry) {
+            this.registry = registry;
+            return this;
+        }
+
+        @Override
+        public Io.Builder<? extends Io> onMapper(final Consumer<Mapper.Builder> onMapper) {
+            this.onMapper = onMapper;
+            return this;
+        }
+
+        @Override
+        public Io.Builder<GraphSONPartialIO> graph(final Graph g) {
+            this.graph = g;
+            return this;
+        }
+
+        @Override
+        public GraphSONPartialIO create() {
+            if (null == graph) throw new IllegalArgumentException("The graph argument was not specified");
+            return new GraphSONPartialIO(this);
+        }
+    }
+}