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194 lines (145 loc) · 4.78 KB
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package sqlancer.spark.ast;
import java.math.BigDecimal;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
public abstract class SparkConstant implements SparkExpression {
public boolean isNull() {
return false;
}
public static class SparkNullConstant extends SparkConstant {
@Override
public boolean isNull() {
return true;
}
@Override
public String toString() {
return "NULL";
}
}
public static class SparkIntConstant extends SparkConstant {
private final long value;
public SparkIntConstant(long value) {
this.value = value;
}
public long getValue() {
return value;
}
@Override
public String toString() {
return String.valueOf(value);
}
}
public static class SparkDoubleConstant extends SparkConstant {
private final double value;
public SparkDoubleConstant(double value) {
this.value = value;
}
public double getValue() {
return value;
}
@Override
public String toString() {
if (value == Double.POSITIVE_INFINITY) {
return "CAST('Infinity' AS DOUBLE)";
} else if (value == Double.NEGATIVE_INFINITY) {
return "CAST('-Infinity' AS DOUBLE)";
} else if (Double.isNaN(value)) {
return "CAST('NaN' AS DOUBLE)";
}
return String.valueOf(value);
}
}
public static class SparkDecimalConstant extends SparkConstant {
private final BigDecimal value;
public SparkDecimalConstant(BigDecimal value) {
this.value = value;
}
public BigDecimal getValue() {
return value;
}
@Override
public String toString() {
return String.valueOf(value);
}
}
public static class SparkTimestampConstant extends SparkConstant {
private final String textRepr;
public SparkTimestampConstant(long value) {
Timestamp timestamp = new Timestamp(value);
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
this.textRepr = dateFormat.format(timestamp);
}
public String getValue() {
return textRepr;
}
@Override
public String toString() {
return String.format("TIMESTAMP '%s'", textRepr);
}
}
public static class SparkDateConstant extends SparkConstant {
private final String textRepr;
public SparkDateConstant(long value) {
Timestamp timestamp = new Timestamp(value);
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
this.textRepr = dateFormat.format(timestamp);
}
public String getValue() {
return textRepr;
}
@Override
public String toString() {
return String.format("DATE '%s'", textRepr);
}
}
public static class SparkStringConstant extends SparkConstant {
private final String value;
public SparkStringConstant(String value) {
this.value = value;
}
public String getValue() {
return value;
}
@Override
public String toString() {
return "'" + value.replace("'", "''").replace("\\", "\\\\") + "'";
}
}
public static class SparkBooleanConstant extends SparkConstant {
private final boolean value;
public SparkBooleanConstant(boolean value) {
this.value = value;
}
public boolean getValue() {
return value;
}
@Override
public String toString() {
return String.valueOf(value);
}
}
public static SparkConstant createNullConstant() {
return new SparkNullConstant();
}
public static SparkConstant createIntConstant(long value) {
return new SparkIntConstant(value);
}
public static SparkConstant createDoubleConstant(double value) {
return new SparkDoubleConstant(value);
}
public static SparkConstant createDecimalConstant(BigDecimal value) {
return new SparkDecimalConstant(value);
}
public static SparkConstant createTimestampConstant(long value) {
return new SparkTimestampConstant(value);
}
public static SparkConstant createDateConstant(long value) {
return new SparkDateConstant(value);
}
public static SparkConstant createStringConstant(String value) {
return new SparkStringConstant(value);
}
public static SparkConstant createBooleanConstant(boolean value) {
return new SparkBooleanConstant(value);
}
}