| /* |
| * 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.rocketmq.connect.file; |
| |
| import io.openmessaging.KeyValue; |
| import io.openmessaging.connector.api.component.task.sink.SinkTask; |
| import io.openmessaging.connector.api.data.ConnectRecord; |
| import io.openmessaging.connector.api.data.RecordOffset; |
| import io.openmessaging.connector.api.data.RecordPartition; |
| import io.openmessaging.connector.api.errors.ConnectException; |
| import java.io.IOException; |
| import java.io.PrintStream; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Files; |
| import java.nio.file.Paths; |
| import java.nio.file.StandardOpenOption; |
| import java.util.List; |
| import java.util.Map; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class FileSinkTask extends SinkTask { |
| |
| private Logger log = LoggerFactory.getLogger(LoggerName.FILE_CONNECTOR); |
| |
| private FileConfig fileConfig; |
| |
| private PrintStream outputStream; |
| |
| private KeyValue config; |
| |
| @Override public void put(List<ConnectRecord> sinkDataEntries) { |
| for (ConnectRecord record : sinkDataEntries) { |
| Object payload = record.getData(); |
| log.trace("Writing line to {}: {}", logFilename(), payload); |
| outputStream.println(payload); |
| } |
| |
| } |
| |
| |
| @Override public void flush(Map<RecordPartition, RecordOffset> currentOffsets) throws ConnectException { |
| log.trace("Flushing output stream for {}", logFilename()); |
| outputStream.flush(); |
| } |
| |
| @Override public void validate(KeyValue config) { |
| |
| } |
| |
| @Override public void start(KeyValue config) { |
| this.config = config; |
| fileConfig = new FileConfig(); |
| fileConfig.load(config); |
| if (fileConfig.getFilename() == null || fileConfig.getFilename().isEmpty()) { |
| outputStream = System.out; |
| } else { |
| try { |
| outputStream = new PrintStream( |
| Files.newOutputStream(Paths.get(fileConfig.getFilename()), StandardOpenOption.CREATE, StandardOpenOption.APPEND), |
| false, |
| StandardCharsets.UTF_8.name()); |
| } catch (IOException e) { |
| throw new ConnectException("Couldn't find or create file '" + fileConfig.getFilename() + "' for FileStreamSinkTask", e); |
| } |
| } |
| |
| } |
| |
| @Override public void stop() { |
| if (outputStream != null && outputStream != System.out) { |
| outputStream.close(); |
| } |
| } |
| |
| private String logFilename() { |
| return fileConfig.getFilename() == null ? "stdout" : fileConfig.getFilename(); |
| } |
| |
| } |