TyrantLucifer commented on code in PR #2596: URL: https://github.com/apache/incubator-seatunnel/pull/2596#discussion_r962178237
########## docs/en/connector-v2/source/MongoDB.md: ########## @@ -0,0 +1,82 @@ +# MongoDb + +> MongoDb source connector + +## Description + +Read data from MongoDB. + +## Key features + +- [x] [batch](../../concept/connector-v2-features.md) +- [x] [stream](../../concept/connector-v2-features.md) Review Comment: Are you sure mongo source support stream mode? I think if we support stream mode need implement mongo CDC. ########## seatunnel-connectors-v2/connector-mongodb/src/main/java/org/apache/seatunnel/connectors/seatunnel/mongodb/source/MongodbSource.java: ########## @@ -0,0 +1,120 @@ +/* + * 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.connectors.seatunnel.mongodb.source; + +import static org.apache.seatunnel.connectors.seatunnel.mongodb.config.MongodbConfig.COLLECTION; +import static org.apache.seatunnel.connectors.seatunnel.mongodb.config.MongodbConfig.DATABASE; +import static org.apache.seatunnel.connectors.seatunnel.mongodb.config.MongodbConfig.DEFAULT_FORMAT; +import static org.apache.seatunnel.connectors.seatunnel.mongodb.config.MongodbConfig.FORMAT; +import static org.apache.seatunnel.connectors.seatunnel.mongodb.config.MongodbConfig.SCHEMA; +import static org.apache.seatunnel.connectors.seatunnel.mongodb.config.MongodbConfig.URI; + +import org.apache.seatunnel.api.common.PrepareFailException; +import org.apache.seatunnel.api.common.SeaTunnelContext; +import org.apache.seatunnel.api.serialization.DeserializationSchema; +import org.apache.seatunnel.api.source.Boundedness; +import org.apache.seatunnel.api.source.SeaTunnelSource; +import org.apache.seatunnel.api.table.type.SeaTunnelDataType; +import org.apache.seatunnel.api.table.type.SeaTunnelRow; +import org.apache.seatunnel.api.table.type.SeaTunnelRowType; +import org.apache.seatunnel.common.config.CheckConfigUtil; +import org.apache.seatunnel.common.config.CheckResult; +import org.apache.seatunnel.common.config.TypesafeConfigUtils; +import org.apache.seatunnel.common.constants.JobMode; +import org.apache.seatunnel.common.constants.PluginType; +import org.apache.seatunnel.connectors.seatunnel.common.schema.SeaTunnelSchema; +import org.apache.seatunnel.connectors.seatunnel.common.source.AbstractSingleSplitReader; +import org.apache.seatunnel.connectors.seatunnel.common.source.AbstractSingleSplitSource; +import org.apache.seatunnel.connectors.seatunnel.common.source.SingleSplitReaderContext; +import org.apache.seatunnel.connectors.seatunnel.mongodb.config.MongodbParameters; +import org.apache.seatunnel.format.json.JsonDeserializationSchema; + +import org.apache.seatunnel.shade.com.typesafe.config.Config; +import org.apache.seatunnel.shade.com.typesafe.config.ConfigBeanFactory; + +import com.google.auto.service.AutoService; + +@AutoService(SeaTunnelSource.class) +public class MongodbSource extends AbstractSingleSplitSource<SeaTunnelRow> { + + private SeaTunnelContext seaTunnelContext; + + private SeaTunnelRowType rowType; + + private MongodbParameters params; + + private DeserializationSchema<SeaTunnelRow> deserializationSchema; + + private static final String CONF_PREFIX = "readconfig."; + + @Override + public String getPluginName() { + return "MongoDB"; + } + + @Override + public void prepare(Config config) throws PrepareFailException { + Config extractConfig = TypesafeConfigUtils.extractSubConfig(config, CONF_PREFIX, false); + + CheckResult result = CheckConfigUtil.checkAllExists(extractConfig, URI, DATABASE, COLLECTION); + if (!result.isSuccess()) { + throw new PrepareFailException(getPluginName(), PluginType.SOURCE, result.getMsg()); + } + + this.params = ConfigBeanFactory.create(extractConfig, MongodbParameters.class); + + if (extractConfig.hasPath(SCHEMA)) { + Config schema = extractConfig.getConfig(SCHEMA); + this.rowType = SeaTunnelSchema.buildWithConfig(schema).getSeaTunnelRowType(); + } else { + this.rowType = SeaTunnelSchema.buildSimpleTextSchema(); + } + + // TODO: use format SPI + // default use json format + String format; + if (extractConfig.hasPath(FORMAT)) { + format = extractConfig.getString(FORMAT); + this.deserializationSchema = null; + } else { + format = DEFAULT_FORMAT; + this.deserializationSchema = new JsonDeserializationSchema(false, false, rowType); + } + } + + @Override + public void setSeaTunnelContext(SeaTunnelContext seaTunnelContext) { + this.seaTunnelContext = seaTunnelContext; + } + + @Override + public Boundedness getBoundedness() { + return JobMode.BATCH.equals(seaTunnelContext.getJobMode()) ? Boundedness.BOUNDED : Boundedness.UNBOUNDED; Review Comment: I think static data from mongo is `BOUNDED`, unless CDC. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
