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| 1 | +/* |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | + * or more contributor license agreements. See the NOTICE file |
| 4 | + * distributed with this work for additional information |
| 5 | + * regarding copyright ownership. The ASF licenses this file |
| 6 | + * to you under the Apache License, Version 2.0 (the |
| 7 | + * "License"); you may not use this file except in compliance |
| 8 | + * with the License. You may obtain a copy of the License at |
| 9 | + * |
| 10 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | + * |
| 12 | + * Unless required by applicable law or agreed to in writing, software |
| 13 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | + * See the License for the specific language governing permissions and |
| 16 | + * limitations under the License. |
| 17 | + */ |
| 18 | + |
| 19 | +package com.dtstack.flink.sql.sink.http; |
| 20 | + |
| 21 | +import com.dtstack.flink.sql.outputformat.AbstractDtRichOutputFormat; |
| 22 | +import com.dtstack.flink.sql.sink.http.table.HttpTableInfo; |
| 23 | +import com.fasterxml.jackson.databind.ObjectMapper; |
| 24 | +import org.apache.commons.lang.StringUtils; |
| 25 | +import org.apache.flink.api.java.tuple.Tuple2; |
| 26 | +import org.apache.flink.configuration.Configuration; |
| 27 | +import org.apache.flink.types.Row; |
| 28 | +import org.apache.http.client.config.RequestConfig; |
| 29 | +import org.apache.http.client.methods.HttpPost; |
| 30 | +import org.apache.http.entity.StringEntity; |
| 31 | +import org.apache.http.impl.client.CloseableHttpClient; |
| 32 | +import org.apache.http.impl.client.HttpClients; |
| 33 | +import org.slf4j.Logger; |
| 34 | +import org.slf4j.LoggerFactory; |
| 35 | + |
| 36 | +import java.io.IOException; |
| 37 | +import java.util.HashMap; |
| 38 | +import java.util.Map; |
| 39 | +import java.util.concurrent.TimeUnit; |
| 40 | + |
| 41 | +/** |
| 42 | + * @author: chuixue |
| 43 | + * @create: 2021-03-03 10:41 |
| 44 | + * @description: |
| 45 | + **/ |
| 46 | +public class HttpOutputFormat extends AbstractDtRichOutputFormat<Tuple2> { |
| 47 | + private static final Logger LOG = LoggerFactory.getLogger(HttpOutputFormat.class); |
| 48 | + |
| 49 | + private ObjectMapper mapper = new ObjectMapper(); |
| 50 | + /** |
| 51 | + * Default connection timeout when connecting to the server socket (infinite). |
| 52 | + */ |
| 53 | + private HttpTableInfo httpTableInfo; |
| 54 | + |
| 55 | + private transient Map<String, Object> sendMessage; |
| 56 | + |
| 57 | + private HttpOutputFormat() { |
| 58 | + } |
| 59 | + |
| 60 | + public static HttpOutputFormatBuilder buildHttpOutputFormat() { |
| 61 | + return new HttpOutputFormatBuilder(); |
| 62 | + } |
| 63 | + |
| 64 | + @Override |
| 65 | + public void configure(Configuration parameters) { |
| 66 | + |
| 67 | + } |
| 68 | + |
| 69 | + @Override |
| 70 | + public void open(int taskNumber, int numTasks) { |
| 71 | + initMetric(); |
| 72 | + sendMessage = new HashMap<>(); |
| 73 | + } |
| 74 | + |
| 75 | + @Override |
| 76 | + public void writeRecord(Tuple2 record) { |
| 77 | + String value = null; |
| 78 | + CloseableHttpClient client = null; |
| 79 | + try { |
| 80 | + client = HttpClients.createDefault(); |
| 81 | + RequestConfig requestConfig = RequestConfig.custom() |
| 82 | + .setSocketTimeout(10000) |
| 83 | + .setConnectTimeout(10000) |
| 84 | + .setConnectionRequestTimeout(10000) |
| 85 | + .build(); |
| 86 | + HttpPost post = new HttpPost(this.httpTableInfo.getUrl()); |
| 87 | + post.setConfig(requestConfig); |
| 88 | + // read data |
| 89 | + Tuple2<Boolean, Row> tupleTrans = record; |
| 90 | + if (!tupleTrans.f0) { |
| 91 | + return; |
| 92 | + } |
| 93 | + // not empty ,need send flag、tablename、fieldinfo、value. |
| 94 | + if (StringUtils.isNotEmpty(httpTableInfo.getFlag())) { |
| 95 | + sendMessage.put("flag", httpTableInfo.getFlag()); |
| 96 | + sendMessage.put("tableName", httpTableInfo.getName()); |
| 97 | + } |
| 98 | + // add field |
| 99 | + String[] fields = httpTableInfo.getFields(); |
| 100 | + Row row = tupleTrans.getField(1); |
| 101 | + for (int i = 0; i < fields.length; i++) { |
| 102 | + sendMessage.put(fields[i], row.getField(i)); |
| 103 | + } |
| 104 | + // send data |
| 105 | + value = mapper.writeValueAsString(sendMessage); |
| 106 | + sendMsg(value, client, post); |
| 107 | + // metrics |
| 108 | + outRecords.inc(); |
| 109 | + if (outRecords.getCount() % ROW_PRINT_FREQUENCY == 0) { |
| 110 | + LOG.info(value); |
| 111 | + } |
| 112 | + TimeUnit.MILLISECONDS.sleep(httpTableInfo.getDelay()); |
| 113 | + } catch (Exception e) { |
| 114 | + if (outDirtyRecords.getCount() % DIRTY_PRINT_FREQUENCY == 0 || LOG.isDebugEnabled()) { |
| 115 | + LOG.error("record insert failed ..{}", value); |
| 116 | + LOG.error("", e); |
| 117 | + } |
| 118 | + outDirtyRecords.inc(); |
| 119 | + } finally { |
| 120 | + sendMessage.clear(); |
| 121 | + if (client != null) { |
| 122 | + try { |
| 123 | + client.close(); |
| 124 | + } catch (IOException e) { |
| 125 | + LOG.error(e.getMessage()); |
| 126 | + } |
| 127 | + } |
| 128 | + } |
| 129 | + } |
| 130 | + |
| 131 | + /** |
| 132 | + * send data |
| 133 | + * |
| 134 | + * @param value |
| 135 | + * @param client |
| 136 | + * @param post |
| 137 | + * @throws Exception |
| 138 | + */ |
| 139 | + private void sendMsg(String value, CloseableHttpClient client, HttpPost post) throws Exception { |
| 140 | + StringEntity stringEntity = new StringEntity(value); |
| 141 | + stringEntity.setContentEncoding("UTF-8"); |
| 142 | + stringEntity.setContentType("application/json"); |
| 143 | + post.setEntity(stringEntity); |
| 144 | + client.execute(post); |
| 145 | + } |
| 146 | + |
| 147 | + @Override |
| 148 | + public void close() { |
| 149 | + } |
| 150 | + |
| 151 | + public static class HttpOutputFormatBuilder { |
| 152 | + private final HttpOutputFormat httpOutputFormat; |
| 153 | + |
| 154 | + protected HttpOutputFormatBuilder() { |
| 155 | + this.httpOutputFormat = new HttpOutputFormat(); |
| 156 | + } |
| 157 | + |
| 158 | + public HttpOutputFormatBuilder setHttpTableInfo(HttpTableInfo httpTableInfo) { |
| 159 | + httpOutputFormat.httpTableInfo = httpTableInfo; |
| 160 | + return this; |
| 161 | + } |
| 162 | + |
| 163 | + public HttpOutputFormat finish() { |
| 164 | + if (httpOutputFormat.httpTableInfo.getUrl() == null) { |
| 165 | + throw new IllegalArgumentException("No url supplied."); |
| 166 | + } |
| 167 | + return httpOutputFormat; |
| 168 | + } |
| 169 | + } |
| 170 | +} |
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