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| 1 | +// Copyright (c) Philipp Wagner. All rights reserved. |
| 2 | +// Licensed under the MIT license. See LICENSE file in the project root for full license information. |
| 3 | + |
| 4 | +package de.bytefish.jsqlserverbulkinsert; |
| 5 | + |
| 6 | +import com.microsoft.sqlserver.jdbc.ISQLServerBulkRecord; |
| 7 | +import com.microsoft.sqlserver.jdbc.SQLServerBulkCopy; |
| 8 | +import de.bytefish.jsqlserverbulkinsert.functional.Func2; |
| 9 | +import de.bytefish.jsqlserverbulkinsert.model.ColumnDefinition; |
| 10 | +import de.bytefish.jsqlserverbulkinsert.model.ColumnMetaData; |
| 11 | +import de.bytefish.jsqlserverbulkinsert.model.TableDefinition; |
| 12 | +import de.bytefish.jsqlserverbulkinsert.sqlserver.converters.IValueConverterProvider; |
| 13 | +import de.bytefish.jsqlserverbulkinsert.records.SqlServerRecordBuilder; |
| 14 | + |
| 15 | +import java.math.BigDecimal; |
| 16 | +import java.math.BigInteger; |
| 17 | +import java.math.RoundingMode; |
| 18 | +import java.sql.Connection; |
| 19 | +import java.sql.SQLException; |
| 20 | +import java.sql.Types; |
| 21 | +import java.time.LocalDate; |
| 22 | +import java.time.OffsetDateTime; |
| 23 | +import java.time.OffsetTime; |
| 24 | +import java.util.*; |
| 25 | +import java.util.stream.Stream; |
| 26 | + |
| 27 | +public abstract class SqlServerBulkInsert<TEntity> implements ISqlServerBulkInsert<TEntity> { |
| 28 | + |
| 29 | + private TableDefinition table; |
| 30 | + |
| 31 | + private List<ColumnDefinition<TEntity>> columns; |
| 32 | + |
| 33 | + public SqlServerBulkInsert(String schemaName, String tableName) |
| 34 | + { |
| 35 | + this.table = new TableDefinition(schemaName, tableName); |
| 36 | + this.columns = new ArrayList<>(); |
| 37 | + } |
| 38 | + |
| 39 | + public void saveAll(Connection connection, Stream<TEntity> entities) throws SQLException { |
| 40 | + |
| 41 | + final SqlServerRecordBuilder<TEntity> sqlServerRecordBuilder = new SqlServerRecordBuilder<>(columns); |
| 42 | + |
| 43 | + try (SQLServerBulkCopy sqlServerBulkCopy = new SQLServerBulkCopy(connection)) { |
| 44 | + |
| 45 | + // The Destination Table to write to: |
| 46 | + sqlServerBulkCopy.setDestinationTableName(table.GetFullQualifiedTableName()); |
| 47 | + |
| 48 | + entities |
| 49 | + .map(x -> sqlServerRecordBuilder.build(x)) |
| 50 | + .forEach(x -> internalWriteToServer(sqlServerBulkCopy, x)); |
| 51 | + } |
| 52 | + } |
| 53 | + |
| 54 | + public void internalWriteToServer(SQLServerBulkCopy sqlServerBulkCopy, ISQLServerBulkRecord record) { |
| 55 | + try { |
| 56 | + sqlServerBulkCopy.writeToServer(record); |
| 57 | + } catch(Exception e) { |
| 58 | + throw new RuntimeException(e); |
| 59 | + } |
| 60 | + } |
| 61 | + |
| 62 | + protected void mapBoolean(String columnName, Func2<TEntity, Boolean> propertyGetter) { |
| 63 | + addColumn(columnName, Types.BOOLEAN, propertyGetter); |
| 64 | + } |
| 65 | + |
| 66 | + protected void mapNumeric(String columnName, int scale, int precision, Func2<TEntity, BigDecimal> propertyGetter) |
| 67 | + { |
| 68 | + addColumn(columnName, Types.NUMERIC, precision, scale, false, propertyGetter); |
| 69 | + } |
| 70 | + |
| 71 | + protected void mapDecimal(String columnName, int scale, int precision, Func2<TEntity, BigDecimal> propertyGetter) |
| 72 | + { |
| 73 | + // We need to scale the incoming decimal, before writing it to SQL Server: |
| 74 | + final Func2<TEntity, BigDecimal> wrapper = entity -> { |
| 75 | + BigDecimal result = propertyGetter.invoke(entity); |
| 76 | + |
| 77 | + return result.setScale(scale, RoundingMode.HALF_UP); |
| 78 | + }; |
| 79 | + |
| 80 | + addColumn(columnName, Types.DECIMAL, precision, scale, false, wrapper); |
| 81 | + } |
| 82 | + |
| 83 | + protected void mapReal(String columnName, Func2<TEntity, Float> propertyGetter) |
| 84 | + { |
| 85 | + addColumn(columnName, Types.REAL, propertyGetter); |
| 86 | + } |
| 87 | + |
| 88 | + protected void mapBigInt(String columnName, Func2<TEntity, BigInteger> propertyGetter) { |
| 89 | + |
| 90 | + // SQL Server expects the Big Integer as a Long Value: |
| 91 | + final Func2<TEntity, Long> wrapper = entity -> { |
| 92 | + BigInteger resultAsBigInteger = propertyGetter.invoke(entity); |
| 93 | + |
| 94 | + return resultAsBigInteger.longValueExact(); |
| 95 | + }; |
| 96 | + |
| 97 | + addColumn(columnName, Types.BIGINT, wrapper); |
| 98 | + } |
| 99 | + |
| 100 | + protected void mapDate(String columnName, Func2<TEntity, LocalDate> propertyGetter) { |
| 101 | + addColumn(columnName, Types.DATE, propertyGetter); |
| 102 | + } |
| 103 | + |
| 104 | + protected void mapDouble(String columnName, Func2<TEntity, Double> propertyGetter) |
| 105 | + { |
| 106 | + addColumn(columnName, Types.DOUBLE, propertyGetter); |
| 107 | + } |
| 108 | + |
| 109 | + protected void mapSmallInt(String columnName, Func2<TEntity, String> propertyGetter) |
| 110 | + { |
| 111 | + addColumn(columnName, Types.SMALLINT, propertyGetter); |
| 112 | + } |
| 113 | + |
| 114 | + protected void mapTinyInt(String columnName, Func2<TEntity, String> propertyGetter) |
| 115 | + { |
| 116 | + addColumn(columnName, Types.TINYINT, propertyGetter); |
| 117 | + } |
| 118 | + |
| 119 | + protected void mapTimeWithTimeZone(String columnName, Func2<TEntity, OffsetTime> propertyGetter) { |
| 120 | + addColumn(columnName, 2013, propertyGetter); |
| 121 | + } |
| 122 | + |
| 123 | + protected void mapDateTimeWithTimeZone(String columnName, Func2<TEntity, OffsetDateTime> propertyGetter) { |
| 124 | + addColumn(columnName, 2014, propertyGetter); |
| 125 | + } |
| 126 | + |
| 127 | + private void addColumn(String name, int type, boolean isAutoIncrement, Func2<TEntity, Object> propertyGetter) |
| 128 | + { |
| 129 | + // Create the current Column Meta Data: |
| 130 | + ColumnMetaData columnMetaData = new ColumnMetaData(name, type, 0, 0, isAutoIncrement); |
| 131 | + |
| 132 | + // Add a new Column with the Meta Data and Property Getter: |
| 133 | + addColumn(columnMetaData, propertyGetter); |
| 134 | + } |
| 135 | + |
| 136 | + private <TProperty> void addColumn(String name, int type, Func2<TEntity, TProperty> propertyGetter) |
| 137 | + { |
| 138 | + // Create the current Column Meta Data: |
| 139 | + ColumnMetaData columnMetaData = new ColumnMetaData(name, type); |
| 140 | + |
| 141 | + // Add a new Column with the Meta Data and Property Getter: |
| 142 | + addColumn(columnMetaData, propertyGetter); |
| 143 | + } |
| 144 | + |
| 145 | + private <TProperty> void addColumn(String name, int type, int precision, int scale, boolean isAutoIncrement, Func2<TEntity, TProperty> propertyGetter) |
| 146 | + { |
| 147 | + // Create the current Column Meta Data: |
| 148 | + ColumnMetaData columnMetaData = new ColumnMetaData(name, type, precision, scale, isAutoIncrement); |
| 149 | + |
| 150 | + // Add a new Column with the Meta Data and Property Getter: |
| 151 | + |
| 152 | + addColumn(columnMetaData, propertyGetter); |
| 153 | + } |
| 154 | + |
| 155 | + private <TProperty> void addColumn(ColumnMetaData columnMetaData, Func2<TEntity, TProperty> propertyGetter) |
| 156 | + { |
| 157 | + // Add a new Column with the Meta Data and Property Getter: |
| 158 | + columns.add(new ColumnDefinition(columnMetaData, propertyGetter)); |
| 159 | + } |
| 160 | +} |
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