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spark-doris-connector/src/main/java/org/apache/doris/spark/load/RecordBatchString.java
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| // 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. | ||
|
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| package org.apache.doris.spark.load; | ||
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| import com.fasterxml.jackson.core.JsonProcessingException; | ||
| import org.apache.doris.spark.exception.DorisException; | ||
| import org.apache.doris.spark.exception.IllegalArgumentException; | ||
| import org.apache.doris.spark.util.DataUtil; | ||
| import org.apache.spark.sql.catalyst.InternalRow; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import java.io.IOException; | ||
| import java.util.Iterator; | ||
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| /** | ||
| * InputStream for batch load | ||
| */ | ||
| public class RecordBatchString { | ||
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| public static final Logger LOG = LoggerFactory.getLogger(RecordBatchString.class); | ||
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| /** | ||
| * Load record batch | ||
| */ | ||
| private final RecordBatch recordBatch; | ||
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| private final byte[] delim; | ||
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| /** | ||
| * record count has been read | ||
| */ | ||
| private int readCount = 0; | ||
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| /** | ||
| * streaming mode pass through data without process | ||
| */ | ||
| private final boolean passThrough; | ||
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| public RecordBatchString(RecordBatch recordBatch, boolean passThrough) { | ||
| this.recordBatch = recordBatch; | ||
| this.passThrough = passThrough; | ||
| this.delim = recordBatch.getDelim(); | ||
| } | ||
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| public String getContent() throws IOException { | ||
| String delimStr = new String(this.recordBatch.getDelim()); | ||
| StringBuilder builder = new StringBuilder(); | ||
| Iterator<InternalRow> iterator = recordBatch.getIterator(); | ||
| while (iterator.hasNext()) { | ||
| try { | ||
| builder.append(rowToString(iterator.next())); | ||
| } catch (DorisException e) { | ||
| throw new IOException(e); | ||
| } | ||
| builder.append(delimStr); | ||
| } | ||
| return builder.toString().substring(0, builder.length()-delimStr.length()); | ||
| } | ||
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| /** | ||
| * Convert Spark row data to string | ||
| * | ||
| * @param row row data | ||
| * @return byte array | ||
| * @throws DorisException | ||
| */ | ||
| private String rowToString(InternalRow row) throws DorisException { | ||
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| String str; | ||
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| if (passThrough) { | ||
| str = row.getString(0); | ||
| return str; | ||
| } | ||
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| switch (recordBatch.getFormat()) { | ||
| case CSV: | ||
| str = DataUtil.rowToCsvString(row, recordBatch.getSchema(), recordBatch.getSep(), recordBatch.getAddDoubleQuotes()); | ||
| break; | ||
| case JSON: | ||
| try { | ||
| str = DataUtil.rowToJsonString(row, recordBatch.getSchema()); | ||
| } catch (JsonProcessingException e) { | ||
| throw new DorisException("parse row to json bytes failed", e); | ||
| } | ||
| break; | ||
| default: | ||
| throw new IllegalArgumentException("Unsupported format: ", recordBatch.getFormat().toString()); | ||
| } | ||
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| return str; | ||
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| } | ||
| } |
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90
spark-doris-connector/src/test/java/org/apache/doris/spark/load/TestDorisStreamLoad.java
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| // 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. | ||
|
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| package org.apache.doris.spark.load; | ||
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| import org.apache.doris.spark.cfg.SparkSettings; | ||
| import org.apache.spark.SparkConf; | ||
| import org.junit.Assert; | ||
| import org.junit.Test; | ||
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| import java.io.IOException; | ||
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| public class TestDorisStreamLoad { | ||
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| @Test | ||
| public void compressByGZ() throws IOException { | ||
| String content = "1,aa,1\n" + | ||
| "2,aa,2\n" + | ||
| "3,aa,3\n" + | ||
| "4,aa,4\n" + | ||
| "5,aa,5\n" + | ||
| "6,aa,6\n" + | ||
| "7,aa,7\n" + | ||
| "8,aa,8\n" + | ||
| "9,aa,9\n" + | ||
| "10,aa,10\n" + | ||
| "11,aa,11\n" + | ||
| "12,aa,12\n" + | ||
| "13,aa,13\n" + | ||
| "14,aa,14\n" + | ||
| "15,aa,15\n" + | ||
| "16,aa,16\n" + | ||
| "17,aa,17\n" + | ||
| "18,aa,18\n" + | ||
| "19,aa,19\n" + | ||
| "20,aa,20\n" + | ||
| "21,aa,21\n" + | ||
| "22,aa,22\n" + | ||
| "23,aa,23\n" + | ||
| "24,aa,24\n" + | ||
| "25,aa,25\n" + | ||
| "26,aa,26\n" + | ||
| "27,aa,27\n" + | ||
| "28,aa,28\n" + | ||
| "29,aa,29\n" + | ||
| "30,aa,30\n" + | ||
| "31,aa,31\n" + | ||
| "32,aa,32\n" + | ||
| "33,aa,33\n" + | ||
| "34,aa,34\n" + | ||
| "35,aa,35\n" + | ||
| "36,aa,36\n" + | ||
| "37,aa,37\n" + | ||
| "38,aa,38\n" + | ||
| "39,aa,39"; | ||
| byte[] compressByte = new DorisStreamLoad(new SparkSettings(new SparkConf().set("doris.table.identifier", "aa.bb"))).compressByGZ(content); | ||
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| int contentByteLength = content.getBytes("utf-8").length; | ||
| int compressByteLength = compressByte.length; | ||
| System.out.println(contentByteLength); | ||
| System.out.println(compressByteLength); | ||
| Assert.assertTrue(contentByteLength > compressByteLength); | ||
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| java.io.ByteArrayOutputStream out = new java.io.ByteArrayOutputStream(); | ||
| java.io.ByteArrayInputStream in = new java.io.ByteArrayInputStream(compressByte); | ||
| java.util.zip.GZIPInputStream ungzip = new java.util.zip.GZIPInputStream(in); | ||
| byte[] buffer = new byte[1024]; | ||
| int n; | ||
| while ((n = ungzip.read(buffer)) >= 0) out.write(buffer, 0, n); | ||
| byte[] unGzipByte = out.toByteArray(); | ||
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| String unGzipStr = new String(unGzipByte); | ||
| Assert.assertArrayEquals(unGzipStr.getBytes("utf-8"), content.getBytes("utf-8")); | ||
| Assert.assertEquals(unGzipStr, content); | ||
| } | ||
| } |