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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 bool}.
*/
public class ClickHouseBoolValue implements ClickHouseValue {
private static final String ERROR_INVALID_NUMBER = "Boolean value can be only 1(true) or 0(false).";
/**
* Create a new instance representing null value.
*
* @return new instance representing null value
*/
public static ClickHouseBoolValue ofNull() {
return ofNull(null);
}
/**
* Update given value to null or create a new instance if {@code ref} is null.
*
* @param ref object to update, could be null
* @return same object as {@code ref} or a new instance if it's null
*/
public static ClickHouseBoolValue ofNull(ClickHouseValue ref) {
return ref instanceof ClickHouseBoolValue ? ((ClickHouseBoolValue) ref).set(true, false)
: new ClickHouseBoolValue(true, false);
}
/**
* Wrap the given value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseBoolValue of(boolean value) {
return of(null, value);
}
/**
* Wrap the given value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseBoolValue of(int value) {
if (value == 1) {
return new ClickHouseBoolValue(false, true);
} else if (value == 0) {
return new ClickHouseBoolValue(false, false);
} else {
throw new IllegalArgumentException(ERROR_INVALID_NUMBER);
}
}
/**
* Update value of the given object or create a new instance if {@code ref} is
* null.
*
* @param ref object to update, could be null
* @param value value
* @return same object as {@code ref} or a new instance if it's null
*/
public static ClickHouseBoolValue of(ClickHouseValue ref, boolean value) {
return ref instanceof ClickHouseBoolValue ? ((ClickHouseBoolValue) ref).set(false, value)
: new ClickHouseBoolValue(false, value);
}
private boolean isNull;
private boolean value;
protected ClickHouseBoolValue(boolean isNull, boolean value) {
set(isNull, value);
}
protected ClickHouseBoolValue set(boolean isNull, boolean value) {
this.isNull = isNull;
this.value = !isNull && value;
return this;
}
/**
* Gets value.
*
* @return value
*/
public boolean getValue() {
return value;
}
@Override
public ClickHouseBoolValue copy(boolean deep) {
return new ClickHouseBoolValue(isNull, value);
}
@Override
public boolean isNullOrEmpty() {
return isNull;
}
@Override
public byte asByte() {
return value ? (byte) 1 : (byte) 0;
}
@Override
public short asShort() {
return value ? (short) 1 : (short) 0;
}
@Override
public int asInteger() {
return value ? 1 : 0;
}
@Override
public long asLong() {
return value ? 1L : 0L;
}
@Override
public BigInteger asBigInteger() {
if (isNull) {
return null;
}
return value ? BigInteger.ONE : BigInteger.ZERO;
}
@Override
public float asFloat() {
return value ? 1F : 0F;
}
@Override
public double asDouble() {
return value ? 1D : 0D;
}
@Override
public BigDecimal asBigDecimal(int scale) {
if (isNull) {
return null;
}
return BigDecimal.valueOf(value ? 1L : 0L, scale);
}
@Override
public Object asObject() {
return isNull ? null : Boolean.valueOf(value);
}
@Override
public String asString() {
if (isNull) {
return null;
}
return String.valueOf(value);
}
@Override
public ClickHouseBoolValue resetToDefault() {
return set(false, false);
}
@Override
public ClickHouseBoolValue resetToNullOrEmpty() {
return set(true, false);
}
@Override
public String toSqlExpression() {
if (isNull) {
return ClickHouseValues.NULL_EXPR;
}
// prefer to use number format to ensure backward compatibility
return value ? "1" : "0";
}
@Override
public ClickHouseBoolValue update(char value) {
return set(false, ClickHouseValues.convertToBoolean(value));
}
@Override
public ClickHouseBoolValue update(byte value) {
if (value == (byte) 1) {
return set(false, true);
} else if (value == (byte) 0) {
return set(false, false);
} else {
throw new IllegalArgumentException(ERROR_INVALID_NUMBER);
}
}
@Override
public ClickHouseBoolValue update(short value) {
if (value == (short) 1) {
return set(false, true);
} else if (value == (short) 0) {
return set(false, false);
} else {
throw new IllegalArgumentException(ERROR_INVALID_NUMBER);
}
}
@Override
public ClickHouseBoolValue update(int value) {
if (value == 1) {
return set(false, true);
} else if (value == 0) {
return set(false, false);
} else {
throw new IllegalArgumentException(ERROR_INVALID_NUMBER);
}
}
@Override
public ClickHouseBoolValue update(long value) {
if (value == 1L) {
return set(false, true);
} else if (value == 0L) {
return set(false, false);
} else {
throw new IllegalArgumentException(ERROR_INVALID_NUMBER);
}
}
@Override
public ClickHouseBoolValue update(float value) {
if (value == 1F) {
return set(false, true);
} else if (value == 0F) {
return set(false, false);
} else {
throw new IllegalArgumentException(ERROR_INVALID_NUMBER);
}
}
@Override
public ClickHouseBoolValue update(double value) {
if (value == 1D) {
return set(false, true);
} else if (value == 0D) {
return set(false, false);
} else {
throw new IllegalArgumentException(ERROR_INVALID_NUMBER);
}
}
@Override
public ClickHouseBoolValue update(BigInteger value) {
if (value == null) {
return resetToNullOrEmpty();
} else if (BigInteger.ONE.equals(value)) {
return set(false, true);
} else if (BigInteger.ZERO.equals(value)) {
return set(false, false);
} else {
throw new IllegalArgumentException(ERROR_INVALID_NUMBER);
}
}
@Override
public ClickHouseBoolValue update(BigDecimal value) {
if (value == null) {
return resetToNullOrEmpty();
} else if (BigDecimal.valueOf(1L, value.scale()).equals(value)) {
return set(false, true);
} else if (BigDecimal.valueOf(0L, value.scale()).equals(value)) {
return set(false, false);
} else {
throw new IllegalArgumentException(ERROR_INVALID_NUMBER);
}
}
@Override
public ClickHouseBoolValue update(Enum value) {
return value == null ? resetToNullOrEmpty() : update(value.ordinal());
}
@Override
public ClickHouseBoolValue update(String value) {
if (value == null) {
return resetToNullOrEmpty();
}
return set(false, ClickHouseValues.convertToBoolean(value));
}
@Override
public ClickHouseBoolValue update(ClickHouseValue value) {
return value == null || value.isNullOrEmpty() ? resetToNullOrEmpty() : set(false, value.asBoolean());
}
@Override
public ClickHouseBoolValue update(Object value) {
if (value instanceof Boolean) {
return set(false, (boolean) value);
} else if (value instanceof Number) {
return update(((Number) value).byteValue());
} else if (value instanceof ClickHouseValue) {
return set(false, ((ClickHouseValue) value).asBoolean());
}
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;
}
ClickHouseBoolValue v = (ClickHouseBoolValue) 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 ? 1231 : 1237);
}
@Override
public String toString() {
return ClickHouseValues.convertToString(this);
}
}