| /** |
| * 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.apex.malhar.lib.appdata.gpo; |
| |
| import java.util.Map; |
| |
| import org.apache.apex.malhar.lib.appdata.schemas.FieldsDescriptor; |
| import org.apache.apex.malhar.lib.appdata.schemas.Type; |
| import org.apache.commons.lang3.mutable.MutableInt; |
| |
| import com.google.common.collect.Maps; |
| |
| /** |
| * @since 3.1.0 |
| */ |
| |
| public class SerdeFieldsDescriptor implements Serde |
| { |
| public static final SerdeFieldsDescriptor INSTANCE = new SerdeFieldsDescriptor(); |
| |
| private GPOByteArrayList bal = new GPOByteArrayList(); |
| |
| private SerdeFieldsDescriptor() |
| { |
| } |
| |
| @Override |
| public synchronized byte[] serializeObject(Object object) |
| { |
| FieldsDescriptor fd = (FieldsDescriptor)object; |
| |
| for (Map.Entry<String, Type> entry : fd.getFieldToType().entrySet()) { |
| bal.add(GPOUtils.serializeInt(entry.getValue().ordinal())); |
| bal.add(GPOUtils.serializeString(entry.getKey())); |
| } |
| |
| byte[] serializedBytes = bal.toByteArray(); |
| bal.clear(); |
| bal.add(GPOUtils.serializeInt(serializedBytes.length)); |
| bal.add(serializedBytes); |
| serializedBytes = bal.toByteArray(); |
| bal.clear(); |
| return serializedBytes; |
| } |
| |
| @Override |
| public synchronized Object deserializeObject(byte[] object, MutableInt offset) |
| { |
| Map<String, Type> fieldToType = Maps.newHashMap(); |
| |
| int length = GPOUtils.deserializeInt(object, offset); |
| int startIndex = offset.intValue(); |
| |
| while (startIndex + length > offset.intValue()) { |
| Type type = Type.values()[GPOUtils.deserializeInt(object, offset)]; |
| String value = GPOUtils.deserializeString(object, offset); |
| |
| fieldToType.put(value, type); |
| } |
| |
| return new FieldsDescriptor(fieldToType); |
| } |
| } |