| /* |
| * 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.graphson; |
| |
| import org.apache.tinkerpop.gremlin.structure.Element; |
| import org.apache.tinkerpop.shaded.jackson.core.JsonGenerator; |
| import org.apache.tinkerpop.shaded.jackson.databind.SerializationFeature; |
| import org.apache.tinkerpop.shaded.jackson.databind.SerializerProvider; |
| import org.apache.tinkerpop.shaded.jackson.databind.jsontype.TypeSerializer; |
| import org.apache.tinkerpop.shaded.jackson.databind.ser.std.StdSerializer; |
| |
| import java.io.IOException; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * GraphSON serializers for classes in {@code java.util.*}. |
| */ |
| final class JavaUtilSerializersV1d0 { |
| |
| private JavaUtilSerializersV1d0() {} |
| |
| final static class MapEntryJacksonSerializer extends StdSerializer<Map.Entry> { |
| |
| public MapEntryJacksonSerializer() { |
| super(Map.Entry.class); |
| } |
| |
| @Override |
| public void serialize(final Map.Entry entry, final JsonGenerator jsonGenerator, final SerializerProvider serializerProvider) |
| throws IOException { |
| ser(entry, jsonGenerator, serializerProvider, null); |
| } |
| |
| @Override |
| public void serializeWithType(final Map.Entry entry, final JsonGenerator jsonGenerator, |
| final SerializerProvider serializerProvider, final TypeSerializer typeSerializer) throws IOException { |
| ser(entry, jsonGenerator, serializerProvider, typeSerializer); |
| } |
| |
| private static void ser(final Map.Entry entry, final JsonGenerator jsonGenerator, |
| final SerializerProvider serializerProvider, final TypeSerializer typeSerializer) throws IOException { |
| jsonGenerator.writeStartObject(); |
| if (typeSerializer != null) jsonGenerator.writeStringField(GraphSONTokens.CLASS, HashMap.class.getName()); |
| |
| // this treatment of keys is consistent with the current GraphSONKeySerializer which extends the |
| // StdKeySerializer |
| final Object key = entry.getKey(); |
| final Class cls = key.getClass(); |
| String k; |
| if (cls == String.class) |
| k = (String) key; |
| else if (Element.class.isAssignableFrom(cls)) |
| k = ((Element) key).id().toString(); |
| else if(Date.class.isAssignableFrom(cls)) { |
| if (serializerProvider.isEnabled(SerializationFeature.WRITE_DATE_KEYS_AS_TIMESTAMPS)) |
| k = String.valueOf(((Date) key).getTime()); |
| else |
| k = serializerProvider.getConfig().getDateFormat().format((Date) key); |
| } else if(cls == Class.class) |
| k = ((Class) key).getName(); |
| else |
| k = key.toString(); |
| |
| serializerProvider.defaultSerializeField(k, entry.getValue(), jsonGenerator); |
| jsonGenerator.writeEndObject(); |
| } |
| } |
| } |