| /* |
| * 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.seatunnel.format.json; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import org.apache.seatunnel.api.serialization.SerializationSchema; |
| import org.apache.seatunnel.api.table.type.SeaTunnelRow; |
| import org.apache.seatunnel.api.table.type.SeaTunnelRowType; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import lombok.Getter; |
| |
| public class JsonSerializationSchema implements SerializationSchema { |
| |
| /** |
| * RowType to generate the runtime converter. |
| */ |
| private final SeaTunnelRowType rowType; |
| |
| /** Reusable object node. */ |
| private transient ObjectNode node; |
| |
| /** Object mapper that is used to create output JSON objects. */ |
| @Getter |
| private final ObjectMapper mapper = new ObjectMapper(); |
| |
| private final RowToJsonConverters.RowToJsonConverter runtimeConverter; |
| |
| public JsonSerializationSchema(SeaTunnelRowType rowType) { |
| this.rowType = rowType; |
| this.runtimeConverter = new RowToJsonConverters() |
| .createConverter(checkNotNull(rowType)); |
| } |
| |
| @Override |
| public byte[] serialize(SeaTunnelRow row) { |
| if (node == null) { |
| node = mapper.createObjectNode(); |
| } |
| |
| try { |
| runtimeConverter.convert(mapper, node, row); |
| return mapper.writeValueAsBytes(node); |
| } catch (Throwable e) { |
| throw new RuntimeException( |
| String.format("Failed to deserialize JSON '%s'.", row), e); |
| } |
| } |
| } |