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🐛 Source IBM Db2: Connector provides wrong values for a datatype (air…
…bytehq#7670) * added DB2 type transformation * added DB2 type transformation * fixed code style * fixed remarks * fixed remarks * fixed remarks * added java doc for certificate generation * bump new version
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73 changes: 73 additions & 0 deletions
73
...tors/source-db2/src/main/java/io.airbyte.integrations.source.db2/Db2SourceOperations.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| /* | ||
| * Copyright (c) 2021 Airbyte, Inc., all rights reserved. | ||
| */ | ||
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| package io.airbyte.integrations.source.db2; | ||
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| import com.fasterxml.jackson.databind.JsonNode; | ||
| import com.fasterxml.jackson.databind.node.ObjectNode; | ||
| import io.airbyte.commons.json.Jsons; | ||
| import io.airbyte.db.jdbc.JdbcSourceOperations; | ||
| import java.sql.JDBCType; | ||
| import java.sql.ResultSet; | ||
| import java.sql.SQLException; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| public class Db2SourceOperations extends JdbcSourceOperations { | ||
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| private static final Logger LOGGER = LoggerFactory.getLogger(Db2SourceOperations.class); | ||
| private static final List<String> DB2_UNIQUE_NUMBER_TYPES = List.of("DECFLOAT"); | ||
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| @Override | ||
| public JsonNode rowToJson(final ResultSet queryContext) throws SQLException { | ||
| final int columnCount = queryContext.getMetaData().getColumnCount(); | ||
| final ObjectNode jsonNode = (ObjectNode) Jsons.jsonNode(Collections.emptyMap()); | ||
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| for (int i = 1; i <= columnCount; i++) { | ||
| setFields(queryContext, i, jsonNode); | ||
| } | ||
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| return jsonNode; | ||
| } | ||
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| /* Helpers */ | ||
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| private void setFields(ResultSet queryContext, int index, ObjectNode jsonNode) throws SQLException { | ||
| try { | ||
| queryContext.getObject(index); | ||
| if (!queryContext.wasNull()) { | ||
| setJsonField(queryContext, index, jsonNode); | ||
| } | ||
| } catch (SQLException e) { | ||
| if (DB2_UNIQUE_NUMBER_TYPES.contains(queryContext.getMetaData().getColumnTypeName(index))) { | ||
| db2UniqueTypes(queryContext, index, jsonNode); | ||
| } else { | ||
| throw new SQLException(e.getCause()); | ||
| } | ||
| } | ||
| } | ||
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| private void db2UniqueTypes(ResultSet resultSet, int index, ObjectNode jsonNode) throws SQLException { | ||
| String columnType = resultSet.getMetaData().getColumnTypeName(index); | ||
| String columnName = resultSet.getMetaData().getColumnName(index); | ||
| if (DB2_UNIQUE_NUMBER_TYPES.contains(columnType)) { | ||
| putDecfloat(jsonNode, columnName, resultSet, index); | ||
| } | ||
| } | ||
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| private void putDecfloat(final ObjectNode node, | ||
| final String columnName, | ||
| final ResultSet resultSet, | ||
| final int index) { | ||
| try { | ||
| final double value = resultSet.getDouble(index); | ||
| node.put(columnName, value); | ||
| } catch (final SQLException e) { | ||
| node.put(columnName, (Double) null); | ||
| } | ||
| } | ||
|
|
||
| } |
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