| /* |
| * 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.tinkerpop.gremlin.structure.io.binary.types; |
| |
| import org.apache.tinkerpop.gremlin.structure.io.binary.DataType; |
| import org.apache.tinkerpop.gremlin.structure.io.binary.GraphBinaryReader; |
| import org.apache.tinkerpop.gremlin.structure.io.binary.GraphBinaryWriter; |
| import org.apache.tinkerpop.gremlin.process.traversal.util.Metrics; |
| import org.apache.tinkerpop.gremlin.process.traversal.util.MutableMetrics; |
| import org.apache.tinkerpop.gremlin.structure.io.Buffer; |
| |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.concurrent.TimeUnit; |
| |
| public class MetricsSerializer extends SimpleTypeSerializer<Metrics> { |
| private static final CollectionSerializer collectionSerializer = new CollectionSerializer(DataType.LIST); |
| |
| public MetricsSerializer() { |
| super(DataType.METRICS); |
| } |
| |
| @Override |
| protected Metrics readValue(final Buffer buffer, final GraphBinaryReader context) throws IOException { |
| // Consider using a custom implementation, like "DefaultMetrics" |
| final MutableMetrics result = new MutableMetrics( |
| context.readValue(buffer, String.class, false), |
| context.readValue(buffer, String.class, false)); |
| result.setDuration(context.readValue(buffer, Long.class, false), TimeUnit.NANOSECONDS); |
| final Map<String, Long> counts = context.readValue(buffer, Map.class, false); |
| counts.forEach(result::setCount); |
| final Map<String, Object> annotations = context.readValue(buffer, Map.class, false); |
| annotations.forEach(result::setAnnotation); |
| final Collection<MutableMetrics> nestedMetrics = collectionSerializer.readValue(buffer, context); |
| nestedMetrics.forEach(result::addNested); |
| return result; |
| } |
| |
| @Override |
| protected void writeValue(final Metrics value, final Buffer buffer, final GraphBinaryWriter context) throws IOException { |
| context.writeValue(value.getId(), buffer, false); |
| context.writeValue(value.getName(), buffer, false); |
| context.writeValue(value.getDuration(TimeUnit.NANOSECONDS), buffer, false); |
| context.writeValue(value.getCounts(), buffer, false); |
| context.writeValue(value.getAnnotations(), buffer, false); |
| |
| // Avoid changing type to List |
| collectionSerializer.writeValue(value.getNested(), buffer, context); |
| } |
| } |