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SQOOP-2027: Sqoop2: SqoopIDFUtils handling of decimal need to be fixed

Browse Source 
(Veena Basavaraj via Abraham Elmahrek)
This commit is contained in:
Abraham Elmahrek 2015-01-23 11:58:59 -08:00
parent 041d42fd55
commit c8dbec4813
11 changed files with 81 additions and 49 deletions
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6
common/src/main/java/org/apache/sqoop/json/util/SchemaSerialization.java
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@ -243,9 +243,9 @@ private static Column restoreColumn(JSONObject obj) {
output = new DateTime(name, hasFraction, hasTimezone);
break;
case DECIMAL:
Long precision = (Long) obj.get(PRECISION);
Long scale = (Long) obj.get(SCALE);
output = new Decimal(name).setPrecision(precision).setScale(scale);
Integer precision = obj.get(PRECISION) != null ? ((Long) obj.get(PRECISION)).intValue() : null;
Integer scale = obj.get(SCALE) != null ? ((Long) obj.get(SCALE)).intValue() : null;
output = new Decimal(name, precision, scale);
break;
case ENUM:
output = new Enum(name, options);

35
common/src/main/java/org/apache/sqoop/schema/type/Decimal.java
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@ -30,49 +30,36 @@
public class Decimal extends AbstractNumber {
/**
* Number of valid numbers.
* Numeric precision refers to the maximum number of digits that are present in the number.
* ie 1234567.89 has a precision of 9
* Numeric scale refers to the maximum number of decimal places
* ie 123456.789 has a scale of 3
* Thus the maximum allowed value for decimal(5,2) is 999.99
*/
private Long precision;
private Integer precision;
/**
* Number of decimal places.
*/
private Long scale;
private Integer scale;
public Decimal(String name) {
super(name);
}
public Decimal(String name, Long precision, Long scale) {
public Decimal(String name, Integer precision, Integer scale) {
super(name);
this.precision = precision;
this.scale = scale;
}
public Decimal(String name, Boolean nullable, Long precision, Long scale) {
public Decimal(String name, Boolean nullable, Integer precision, Integer scale) {
super(name, nullable);
this.precision = precision;
this.scale = scale;
}
public Long getPrecision() {
public Integer getPrecision() {
return precision;
}
public Decimal setPrecision(Long precision) {
this.precision = precision;
return this;
}
public Long getScale() {
public Integer getScale() {
return scale;
}
public Decimal setScale(Long scale) {
this.scale = scale;
return this;
}
@Override
public ColumnType getType() {
return ColumnType.DECIMAL;

2
common/src/test/java/org/apache/sqoop/json/TestSubmissionBean.java
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@ -449,7 +449,7 @@ public void testTransferToSchema() {
private Schema getSchema() {
return new Schema("schema")
.addColumn(new Text("col1"))
.addColumn(new Decimal("col2"))
.addColumn(new Decimal("col2", 5, 2))
;
}

8
common/src/test/java/org/apache/sqoop/json/util/TestSchemaSerialization.java
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@ -95,7 +95,7 @@ public void testByteArraySchemaObject() {
@Test
public void testArray() {
// create an array type containing decimals
Schema array = new Schema("array").addColumn(new Array("a", new Decimal("a1")).setSize(1L));
Schema array = new Schema("array").addColumn(new Array("a", new Decimal("a1", 5, 2)).setSize(1L));
transferAndAssert(array);
}
@ -125,7 +125,7 @@ public void testDateTime() {
@Test
public void testDecimal() {
Schema decimal = new Schema("d").addColumn(new Decimal("d", 12L, 15L));
Schema decimal = new Schema("d").addColumn(new Decimal("d", 5, 2));
transferAndAssert(decimal);
}
@ -150,7 +150,7 @@ public void testFloatingPoint() {
@Test
public void testMap() {
Schema m = new Schema("m").addColumn(new Map("m", new Text("m1"), new Decimal("m2")));
Schema m = new Schema("m").addColumn(new Map("m", new Text("m1"), new Decimal("m2", 5, 2)));
transferAndAssert(m);
}
@ -191,7 +191,7 @@ public void testAllTypes() {
.addColumn(new Bit("c"))
.addColumn(new Date("d"))
.addColumn(new DateTime("e", true, true))
.addColumn(new Decimal("f"))
.addColumn(new Decimal("f", 5, 2))
.addColumn(new Enum("g", Collections.unmodifiableSet(new HashSet<String>(Arrays.asList(new String[] { "X", "Y" })))))
.addColumn(new FixedPoint("h", 2L, false))
.addColumn(new FloatingPoint("i", 4L))

2
connector/connector-generic-jdbc/src/main/java/org/apache/sqoop/connector/jdbc/GenericJdbcFromInitializer.java
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@ -92,7 +92,7 @@ public Schema getSchema(InitializerContext context, LinkConfiguration linkConfig
columnName = "Column " + i;
}
}
Column column = SqlTypesUtils.sqlTypeToSchemaType(rsmt.getColumnType(i), columnName);
Column column = SqlTypesUtils.sqlTypeToSchemaType(rsmt.getColumnType(i), columnName, rsmt.getPrecision(i), rsmt.getScale(i));
schema.addColumn(column);
}

2
connector/connector-generic-jdbc/src/main/java/org/apache/sqoop/connector/jdbc/GenericJdbcToInitializer.java
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@ -92,7 +92,7 @@ public Schema getSchema(InitializerContext context, LinkConfiguration linkConfig
}
}
Column column = SqlTypesUtils.sqlTypeToSchemaType(rsmt.getColumnType(i), columnName);
Column column = SqlTypesUtils.sqlTypeToSchemaType(rsmt.getColumnType(i), columnName, rsmt.getPrecision(i), rsmt.getScale(i));
schema.addColumn(column);
}

5
connector/connector-generic-jdbc/src/main/java/org/apache/sqoop/connector/jdbc/util/SqlTypesUtils.java
View File

@ -44,7 +44,7 @@ public class SqlTypesUtils {
*
* @return Concrete Column implementation
*/
public static Column sqlTypeToSchemaType(int sqlType, String columnName) {
public static Column sqlTypeToSchemaType(int sqlType, String columnName, int precision, int scale) {
switch (sqlType) {
case Types.SMALLINT:
case Types.TINYINT:
@ -80,10 +80,9 @@ public static Column sqlTypeToSchemaType(int sqlType, String columnName) {
case Types.DOUBLE:
return new FloatingPoint(columnName, 8L);
//TODO:SQOOP-2027 The following mapping needs to be revisited
case Types.NUMERIC:
case Types.DECIMAL:
return new Decimal(columnName);
return new Decimal(columnName, precision, scale);
case Types.BIT:
case Types.BOOLEAN:

4
connector/connector-generic-jdbc/src/test/java/org/apache/sqoop/connector/jdbc/TestExtractor.java
View File

@ -103,7 +103,7 @@ public void testQuery() throws Exception {
Schema schema = new Schema("TestExtractor");
// dummy columns added, all we need is the column count to match to the
// result set
schema.addColumn(new FixedPoint("c1",2L, true)).addColumn(new Decimal("c2")).addColumn(new Text("c3")).addColumn(new Date("c4"));
schema.addColumn(new FixedPoint("c1",2L, true)).addColumn(new Decimal("c2", 5, 2)).addColumn(new Text("c3")).addColumn(new Date("c4"));
ExtractorContext extractorContext = new ExtractorContext(context, writer, schema);
@ -216,7 +216,7 @@ public void testNullValueExtracted() throws Exception {
Extractor extractor = new GenericJdbcExtractor();
DummyNullDataWriter writer = new DummyNullDataWriter();
Schema schema = new Schema("TestExtractor");
schema.addColumn(new FixedPoint("c1",2L, true)).addColumn(new Decimal("c2")).addColumn(new Text("c3")).addColumn(new Date("c4"));
schema.addColumn(new FixedPoint("c1",2L, true)).addColumn(new Decimal("c2", 5, 2)).addColumn(new Text("c3")).addColumn(new Date("c4"));
ExtractorContext extractorContext = new ExtractorContext(context, writer, schema);

19
connector/connector-sdk/src/main/java/org/apache/sqoop/connector/common/SqoopIDFUtils.java
View File

@ -37,6 +37,8 @@
import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
import java.math.MathContext;
import java.math.RoundingMode;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
@ -153,7 +155,22 @@ public static String toCSVDecimal(Object obj) {
}
public static Object toDecimal(String csvString, Column column) {
return new BigDecimal(csvString);
Integer precision = ((org.apache.sqoop.schema.type.Decimal) column).getPrecision();
Integer scale = ((org.apache.sqoop.schema.type.Decimal) column).getScale();
BigDecimal bd = null;
if (precision != null) {
MathContext mc = new MathContext(precision);
bd = new BigDecimal(csvString, mc);
} else {
bd = new BigDecimal(csvString);
}
if (scale != null) {
// we have decided to use the default MathContext DEFAULT_ROUNDINGMODE
// which is RoundingMode.HALF_UP,
// we are aware that there may be some loss
bd.setScale(scale, RoundingMode.HALF_UP);
}
return bd;
}
// ********** BIT Column Type utils******************

33
connector/connector-sdk/src/test/java/org/apache/sqoop/connector/common/TestSqoopIDFUtils.java
View File

@ -24,12 +24,14 @@
import org.apache.sqoop.schema.type.AbstractComplexListType;
import org.apache.sqoop.schema.type.Array;
import org.apache.sqoop.schema.type.Column;
import org.apache.sqoop.schema.type.Decimal;
import org.apache.sqoop.schema.type.FixedPoint;
import org.apache.sqoop.schema.type.FloatingPoint;
import org.apache.sqoop.schema.type.Text;
import org.testng.annotations.Test;
import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
@ -273,8 +275,8 @@ public void testEncodeMapToCSVString() {
list.add("B");
Map<Object, Object> map = new HashMap<Object, Object>();
map.put("A", list);
org.apache.sqoop.schema.type.Map mapCol = new org.apache.sqoop.schema.type.Map("a", new Text(
"t"), new Array("r", new Text("tr")));
org.apache.sqoop.schema.type.Map mapCol = new org.apache.sqoop.schema.type.Map("a", new Text("t"), new Array("r", new Text(
"tr")));
String encodedText = toCSVMap(map, mapCol);
assertEquals(encodedText, "'{\"A\":[\"A\",\"B\"]}'");
}
@ -291,4 +293,31 @@ public void testParseCSVString() {
}
@Test
public void testToDecimaPointReturnsDecimal() {
String text = "23.44444444";
Decimal col = new Decimal("dd", 4, 2);
assertTrue(toDecimal(text, col) instanceof BigDecimal);
BigDecimal bd = (BigDecimal) toDecimal(text, col);
assertEquals("23.44", toCSVDecimal(bd));
}
@Test
public void testToDecimaPoint2ReturnsDecimal() {
String text = "23.44444444";
Decimal col = new Decimal("dd", 8, 2);
assertTrue(toDecimal(text, col) instanceof BigDecimal);
BigDecimal bd = (BigDecimal) toDecimal(text, col);
assertEquals("23.444444", toCSVDecimal(bd));
}
@Test
public void testToDecimaPointNoScaleNoPrecisionReturnsDecimal() {
String text = "23.44444444";
Decimal col = new Decimal("dd", null, null);
assertTrue(toDecimal(text, col) instanceof BigDecimal);
BigDecimal bd = (BigDecimal) toDecimal(text, col);
assertEquals("23.44444444", toCSVDecimal(bd));
}
}

10
connector/connector-sdk/src/test/java/org/apache/sqoop/connector/idf/TestCSVIntermediateDataFormat.java
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@ -89,7 +89,7 @@ public void testEmptyInputAsCSVTextInObjectArrayOut() {
@Test
public void testNullValueAsObjectArrayInAndCSVTextOut() {
Schema schema = new Schema("test");
schema.addColumn(new FixedPoint("1", 2L, false)).addColumn(new Decimal("2")).addColumn(new Text("3"))
schema.addColumn(new FixedPoint("1", 2L, false)).addColumn(new Decimal("2", 5, 2)).addColumn(new Text("3"))
.addColumn(new Array("4", new Text("t"))).addColumn(new Binary("5"))
.addColumn(new org.apache.sqoop.schema.type.Map("6", new Text("t1"), new Text("t2"))).addColumn(new Bit("7"))
.addColumn(new org.apache.sqoop.schema.type.DateTime("8", false, false))
@ -113,7 +113,7 @@ public void testNullValueAsObjectArrayInAndCSVTextOut() {
@Test
public void testNullValueAsObjectArrayInAndObjectArrayOut() {
Schema schema = new Schema("test");
schema.addColumn(new FixedPoint("1", 2L, true)).addColumn(new Decimal("2")).addColumn(new Text("3"))
schema.addColumn(new FixedPoint("1", 2L, true)).addColumn(new Decimal("2", 5, 2)).addColumn(new Text("3"))
.addColumn(new Array("4", new Text("t"))).addColumn(new Binary("5"))
.addColumn(new org.apache.sqoop.schema.type.Map("6", new Text("t1"), new Text("t2"))).addColumn(new Bit("7"))
.addColumn(new org.apache.sqoop.schema.type.DateTime("8", false, false))
@ -136,7 +136,7 @@ public void testNullValueAsObjectArrayInAndObjectArrayOut() {
@Test
public void testNullValueAsCSVTextInAndObjectArrayOut() {
Schema schema = new Schema("test");
schema.addColumn(new FixedPoint("1", 2L, true)).addColumn(new Decimal("2")).addColumn(new Text("3"))
schema.addColumn(new FixedPoint("1", 2L, true)).addColumn(new Decimal("2", 5, 2)).addColumn(new Text("3"))
.addColumn(new Array("4", new Text("t"))).addColumn(new Binary("5"))
.addColumn(new org.apache.sqoop.schema.type.Map("6", new Text("t1"), new Text("t2"))).addColumn(new Bit("7"))
.addColumn(new org.apache.sqoop.schema.type.DateTime("8", false, false))
@ -159,7 +159,7 @@ public void testNullValueAsCSVTextInAndObjectArrayOut() {
@Test
public void testNullValueAsCSVTextInAndCSVTextOut() {
Schema schema = new Schema("test");
schema.addColumn(new FixedPoint("1", 2L, true)).addColumn(new Decimal("2")).addColumn(new Text("3"))
schema.addColumn(new FixedPoint("1", 2L, true)).addColumn(new Decimal("2", 5, 2)).addColumn(new Text("3"))
.addColumn(new Array("4", new Text("t"))).addColumn(new Binary("5"))
.addColumn(new org.apache.sqoop.schema.type.Map("6", new Text("t1"), new Text("t2"))).addColumn(new Bit("7"))
.addColumn(new org.apache.sqoop.schema.type.DateTime("8", false, false))
@ -859,7 +859,7 @@ public void testSetOfIntegers() {
public void testArrayOfDecimals() {
Schema schema = new Schema("test");
schema.addColumn(new org.apache.sqoop.schema.type.Array("1",
new org.apache.sqoop.schema.type.Decimal("deci")));
new org.apache.sqoop.schema.type.Decimal("deci", 5, 2)));
schema.addColumn(new org.apache.sqoop.schema.type.Text("2"));
dataFormat = new CSVIntermediateDataFormat(schema);
Object[] givenArray = { 1.22, 2.444 };