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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 long}.
*/
public class ClickHouseLongValue implements ClickHouseValue {
/**
* Unsigned version of {@code ClickHouseLongValue}.
*/
static final class UnsignedLongValue extends ClickHouseLongValue {
protected UnsignedLongValue(boolean isNull, long value) {
super(isNull, value);
}
@Override
public BigInteger asBigInteger() {
if (isNullOrEmpty()) {
return null;
}
long l = getValue();
BigInteger v = BigInteger.valueOf(l);
if (l < 0L) {
v = v.and(UnsignedLong.MASK);
}
return v;
}
@Override
public float asFloat() {
return getValue();
}
@Override
public double asDouble() {
return getValue();
}
@Override
public BigDecimal asBigDecimal(int scale) {
if (isNullOrEmpty()) {
return null;
}
long l = getValue();
return l < 0L ? new BigDecimal(BigInteger.valueOf(l).and(UnsignedLong.MASK), scale)
: BigDecimal.valueOf(l, scale);
}
@Override
public Object asObject() {
return isNullOrEmpty() ? null : UnsignedLong.valueOf(getValue());
}
@Override
public String asString() {
return isNullOrEmpty() ? null : Long.toUnsignedString(getValue());
}
@Override
public ClickHouseLongValue copy(boolean deep) {
return new UnsignedLongValue(isNullOrEmpty(), getValue());
}
@Override
public String toSqlExpression() {
return isNullOrEmpty() ? ClickHouseValues.NULL_EXPR : Long.toUnsignedString(getValue());
}
@Override
public ClickHouseLongValue update(byte value) {
return set(false, 0xFFL & value);
}
@Override
public ClickHouseLongValue update(short value) {
return set(false, 0xFFFFL & value);
}
@Override
public ClickHouseLongValue update(int value) {
return set(false, 0xFFFFFFFFL & value);
}
@Override
public ClickHouseLongValue update(BigInteger value) {
return value == null ? resetToNullOrEmpty() : set(false, value.longValue());
}
@Override
public ClickHouseLongValue update(BigDecimal value) {
return value == null ? resetToNullOrEmpty() : set(false, value.longValue());
}
@Override
public ClickHouseLongValue update(String value) {
if (value == null) {
resetToNullOrEmpty();
} else if (value.isEmpty()) {
resetToDefault();
} else {
set(false, Long.parseUnsignedLong(value));
}
return this;
}
}
/**
* Creates a new instance representing null {@code Int64} value.
*
* @return new instance representing null value
*/
public static ClickHouseLongValue ofNull() {
return ofNull(null, false);
}
/**
* Creates a new instance representing null {@code UInt64} value.
*
* @return new instance representing null value
*/
public static ClickHouseLongValue 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 ClickHouseLongValue 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 ClickHouseLongValue ofNull(ClickHouseValue ref, boolean unsigned) {
if (unsigned) {
return ref instanceof UnsignedLongValue ? ((UnsignedLongValue) ref).set(true, 0L)
: new UnsignedLongValue(true, 0L);
}
return ref instanceof ClickHouseLongValue ? ((ClickHouseLongValue) ref).set(true, 0L)
: new ClickHouseLongValue(true, 0L);
}
/**
* Wraps the given {@code Int64} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseLongValue of(long value) {
return of(null, value, false);
}
/**
* Wraps the given {@code UInt64} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseLongValue ofUnsigned(long 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 ClickHouseLongValue of(long value, boolean unsigned) {
return of(null, value, unsigned);
}
/**
* Wraps the given {@code Int64} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseLongValue of(int value) {
return of(null, value, false);
}
/**
* Wraps the given {@code UInt64} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseLongValue ofUnsigned(int value) {
return of(null, 0xFFFFFFFFL & 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 ClickHouseLongValue of(int value, boolean unsigned) {
return of(null, unsigned ? 0xFFFFFFFFL & value : 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 ClickHouseLongValue of(Number value, boolean unsigned) {
return value == null ? ofNull(null, unsigned) : of(null, value.longValue(), 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 ClickHouseLongValue of(ClickHouseValue ref, long value, boolean unsigned) {
if (unsigned) {
return ref instanceof UnsignedLongValue ? ((UnsignedLongValue) ref).set(false, value)
: new UnsignedLongValue(false, value);
}
return ref instanceof ClickHouseLongValue ? ((ClickHouseLongValue) ref).set(false, value)
: new ClickHouseLongValue(false, value);
}
private boolean isNull;
private long value;
protected ClickHouseLongValue(boolean isNull, long value) {
set(isNull, value);
}
protected final ClickHouseLongValue set(boolean isNull, long value) {
this.isNull = isNull;
this.value = isNull ? 0L : value;
return this;
}
/**
* Gets value.
*
* @return value
*/
public final long getValue() {
return value;
}
@Override
public ClickHouseLongValue copy(boolean deep) {
return new ClickHouseLongValue(isNull, value);
}
@Override
public final boolean isNullOrEmpty() {
return isNull;
}
@Override
public byte asByte() {
return (byte) value;
}
@Override
public short asShort() {
return (short) value;
}
@Override
public int asInteger() {
return (int) 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 : Long.toString(value);
}
@Override
public ClickHouseLongValue resetToDefault() {
return set(false, 0L);
}
@Override
public ClickHouseLongValue resetToNullOrEmpty() {
return set(true, 0L);
}
@Override
public String toSqlExpression() {
return isNull ? ClickHouseValues.NULL_EXPR : Long.toString(value);
}
@Override
public ClickHouseLongValue update(boolean value) {
return set(false, value ? 1L : 0L);
}
@Override
public ClickHouseLongValue update(char value) {
return set(false, value);
}
@Override
public ClickHouseLongValue update(byte value) {
return set(false, value);
}
@Override
public ClickHouseLongValue update(short value) {
return set(false, value);
}
@Override
public ClickHouseLongValue update(int value) {
return set(false, value);
}
@Override
public ClickHouseLongValue update(long value) {
return set(false, value);
}
@Override
public ClickHouseLongValue update(float value) {
return set(false, (long) value);
}
@Override
public ClickHouseLongValue update(double value) {
return set(false, (long) value);
}
@Override
public ClickHouseLongValue update(BigInteger value) {
return value == null ? resetToNullOrEmpty() : set(false, value.longValueExact());
}
@Override
public ClickHouseLongValue update(BigDecimal value) {
return value == null ? resetToNullOrEmpty() : set(false, value.longValueExact());
}
@Override
public ClickHouseLongValue update(Enum value) {
return value == null ? resetToNullOrEmpty() : set(false, value.ordinal());
}
@Override
public ClickHouseLongValue update(String value) {
if (value == null) {
resetToNullOrEmpty();
} else if (value.isEmpty()) {
resetToDefault();
} else {
set(false, Long.parseLong(value));
}
return this;
}
@Override
public ClickHouseLongValue update(ClickHouseValue value) {
return value == null || value.isNullOrEmpty() ? resetToNullOrEmpty() : set(false, value.asLong());
}
@Override
public ClickHouseLongValue update(Object value) {
if (value instanceof Number) {
return set(false, ((Number) value).longValue());
} else if (value instanceof ClickHouseValue) {
return set(false, ((ClickHouseValue) value).asLong());
}
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;
}
ClickHouseLongValue v = (ClickHouseLongValue) 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 + (int) (value ^ (value >>> 32));
}
@Override
public String toString() {
return ClickHouseValues.convertToString(this);
}
}