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Data processing utilities for ClickHouse
package com.clickhouse.data.value;
import java.math.BigDecimal;
import java.math.BigInteger;
import com.clickhouse.data.ClickHouseValue;
import com.clickhouse.data.ClickHouseValues;
/**
* Wrapper class of {@code short}.
*/
public class ClickHouseShortValue implements ClickHouseValue {
/**
* Unsigned version of {@code ClickHouseShortValue}.
*/
static final class UnsignedShortValue extends ClickHouseShortValue {
protected UnsignedShortValue(boolean isNull, short value) {
super(isNull, value);
}
@Override
public int asInteger() {
return 0xFFFF & getValue();
}
@Override
public long asLong() {
return 0xFFFFL & getValue();
}
@Override
public BigInteger asBigInteger() {
return isNullOrEmpty() ? null : BigInteger.valueOf(asLong());
}
@Override
public float asFloat() {
return asInteger();
}
@Override
public double asDouble() {
return asLong();
}
@Override
public BigDecimal asBigDecimal(int scale) {
return isNullOrEmpty() ? null : BigDecimal.valueOf(asLong(), scale);
}
@Override
public Object asObject() {
return isNullOrEmpty() ? null : UnsignedShort.valueOf(getValue());
}
@Override
public String asString() {
return isNullOrEmpty() ? null : Integer.toString(asInteger());
}
@Override
public ClickHouseShortValue copy(boolean deep) {
return new UnsignedShortValue(isNullOrEmpty(), getValue());
}
@Override
public String toSqlExpression() {
return isNullOrEmpty() ? ClickHouseValues.NULL_EXPR : Integer.toString(asInteger());
}
@Override
public ClickHouseShortValue update(byte value) {
return set(false, (short) (0xFF & value));
}
@Override
public ClickHouseShortValue update(BigInteger value) {
return value == null ? resetToNullOrEmpty() : set(false, value.shortValue());
}
@Override
public ClickHouseShortValue update(BigDecimal value) {
return value == null ? resetToNullOrEmpty() : set(false, value.shortValue());
}
@Override
public ClickHouseShortValue update(String value) {
if (value == null) {
resetToNullOrEmpty();
} else if (value.isEmpty()) {
resetToDefault();
} else {
set(false, UnsignedShort.valueOf(value).shortValue());
}
return this;
}
}
/**
* Creates a new instance representing null {@code Int16} value.
*
* @return new instance representing null value
*/
public static ClickHouseShortValue ofNull() {
return ofNull(null, false);
}
/**
* Creates a new instance representing null {@code UInt16} value.
*
* @return new instance representing null value
*/
public static ClickHouseShortValue ofUnsignedNull() {
return ofNull(null, true);
}
/**
* Creates a new instance representing null value.
*
* @param unsigned true if the value is unsigned; false otherwise
* @return new instance representing null value
*/
public static ClickHouseShortValue ofNull(boolean unsigned) {
return ofNull(null, unsigned);
}
/**
* Updates the given value to null or creates a new instance when {@code ref} is
* null.
*
* @param ref object to update, could be null
* @param unsigned true if the value is unsigned; false otherwise
* @return same object as {@code ref} or a new instance if it's null
*/
public static ClickHouseShortValue ofNull(ClickHouseValue ref, boolean unsigned) {
if (unsigned) {
return ref instanceof UnsignedShortValue ? ((UnsignedShortValue) ref).set(true, (short) 0)
: new UnsignedShortValue(true, (short) 0);
}
return ref instanceof ClickHouseShortValue ? ((ClickHouseShortValue) ref).set(true, (short) 0)
: new ClickHouseShortValue(true, (short) 0);
}
/**
* Wraps the given {@code Int16} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseShortValue of(short value) {
return of(null, value, false);
}
/**
* Wraps the given {@code UInt16} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseShortValue ofUnsigned(short value) {
return of(null, value, true);
}
/**
* Wraps the given value.
*
* @param value value
* @param unsigned true if {@code value} is unsigned; false otherwise
* @return object representing the value
*/
public static ClickHouseShortValue of(short value, boolean unsigned) {
return of(null, value, unsigned);
}
/**
* Wraps the given {@code Int16} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseShortValue of(int value) {
return of(null, (short) value, false);
}
/**
* Wraps the given {@code UInt16} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseShortValue ofUnsigned(int value) {
return of(null, (short) value, true);
}
/**
* Wraps the given value.
*
* @param value value
* @param unsigned true if {@code value} is unsigned; false otherwise
* @return object representing the value
*/
public static ClickHouseShortValue of(int value, boolean unsigned) {
return of(null, (short) value, unsigned);
}
/**
* Wraps the given value.
*
* @param value value
* @param unsigned true if {@code value} is unsigned; false otherwise
* @return object representing the value
*/
public static ClickHouseShortValue of(Number value, boolean unsigned) {
return value == null ? ofNull(null, unsigned) : of(null, value.shortValue(), unsigned);
}
/**
* Updates value of the given object or create a new instance when {@code ref}
* is null.
*
* @param ref object to update, could be null
* @param value value
* @param unsigned true if {@code value} is unsigned; false otherwise
* @return same object as {@code ref} or a new instance if it's null
*/
public static ClickHouseShortValue of(ClickHouseValue ref, short value, boolean unsigned) {
if (unsigned) {
return ref instanceof UnsignedShortValue ? ((UnsignedShortValue) ref).set(false, value)
: new UnsignedShortValue(false, value);
}
return ref instanceof ClickHouseShortValue ? ((ClickHouseShortValue) ref).set(false, value)
: new ClickHouseShortValue(false, value);
}
private boolean isNull;
private short value;
protected ClickHouseShortValue(boolean isNull, short value) {
set(isNull, value);
}
protected final ClickHouseShortValue set(boolean isNull, short value) {
this.isNull = isNull;
this.value = isNull ? (short) 0 : value;
return this;
}
/**
* Gets value.
*
* @return value
*/
public final short getValue() {
return value;
}
@Override
public ClickHouseShortValue copy(boolean deep) {
return new ClickHouseShortValue(isNull, value);
}
@Override
public final boolean isNullOrEmpty() {
return isNull;
}
@Override
public byte asByte() {
return (byte) value;
}
@Override
public short asShort() {
return value;
}
@Override
public int asInteger() {
return value;
}
@Override
public long asLong() {
return value;
}
@Override
public BigInteger asBigInteger() {
return isNull ? null : BigInteger.valueOf(value);
}
@Override
public float asFloat() {
return value;
}
@Override
public double asDouble() {
return value;
}
@Override
public BigDecimal asBigDecimal(int scale) {
return isNull ? null : BigDecimal.valueOf(value, scale);
}
@Override
public Object asObject() {
return isNull ? null : getValue();
}
@Override
public String asString() {
return isNull ? null : Short.toString(value);
}
@Override
public ClickHouseShortValue resetToDefault() {
return set(false, (short) 0);
}
@Override
public ClickHouseShortValue resetToNullOrEmpty() {
return set(true, (short) 0);
}
@Override
public String toSqlExpression() {
return isNullOrEmpty() ? ClickHouseValues.NULL_EXPR : Short.toString(value);
}
@Override
public ClickHouseShortValue update(boolean value) {
return set(false, value ? (short) 1 : (short) 0);
}
@Override
public ClickHouseShortValue update(char value) {
return set(false, (short) value);
}
@Override
public ClickHouseShortValue update(byte value) {
return set(false, value);
}
@Override
public ClickHouseShortValue update(short value) {
return set(false, value);
}
@Override
public ClickHouseShortValue update(int value) {
return set(false, (short) value);
}
@Override
public ClickHouseShortValue update(long value) {
return set(false, (short) value);
}
@Override
public ClickHouseShortValue update(float value) {
return set(false, (short) value);
}
@Override
public ClickHouseShortValue update(double value) {
return set(false, (short) value);
}
@Override
public ClickHouseShortValue update(BigInteger value) {
return value == null ? resetToNullOrEmpty() : set(false, value.shortValueExact());
}
@Override
public ClickHouseShortValue update(BigDecimal value) {
return value == null ? resetToNullOrEmpty() : set(false, value.shortValueExact());
}
@Override
public ClickHouseShortValue update(Enum value) {
return value == null ? resetToNullOrEmpty() : set(false, (short) value.ordinal());
}
@Override
public ClickHouseShortValue update(String value) {
if (value == null) {
resetToNullOrEmpty();
} else if (value.isEmpty()) {
resetToDefault();
} else {
set(false, Short.parseShort(value));
}
return this;
}
@Override
public ClickHouseShortValue update(ClickHouseValue value) {
return value == null || value.isNullOrEmpty() ? resetToNullOrEmpty() : set(false, value.asShort());
}
@Override
public ClickHouseShortValue update(Object value) {
if (value instanceof Number) {
return set(false, ((Number) value).shortValue());
} else if (value instanceof ClickHouseValue) {
return set(false, ((ClickHouseValue) value).asShort());
}
ClickHouseValue.super.update(value);
return this;
}
@Override
public boolean equals(Object obj) {
if (this == obj) { // too bad this is a mutable class :<
return true;
} else if (obj == null || getClass() != obj.getClass()) {
return false;
}
ClickHouseShortValue v = (ClickHouseShortValue) obj;
return isNull == v.isNull && value == v.value;
}
@Override
public int hashCode() {
// not going to use Objects.hash(isNull, value) due to autoboxing
return (31 + (isNull ? 1231 : 1237)) * 31 + value;
}
@Override
public String toString() {
return ClickHouseValues.convertToString(this);
}
}