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Data processing utilities for ClickHouse
package com.clickhouse.data.value.array;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneOffset;
import java.util.Arrays;
import java.util.Collection;
import java.util.Enumeration;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.Map.Entry;
import com.clickhouse.data.ClickHouseArraySequence;
import com.clickhouse.data.ClickHouseChecker;
import com.clickhouse.data.ClickHouseUtils;
import com.clickhouse.data.ClickHouseValue;
import com.clickhouse.data.ClickHouseValues;
import com.clickhouse.data.value.ClickHouseObjectValue;
/**
* Wrapper of {@code float[]}.
*/
public class ClickHouseFloatArrayValue extends ClickHouseObjectValue implements ClickHouseArraySequence {
private static final String TYPE_NAME = "float[]";
/**
* Creates an empty array.
*
* @return empty array
*/
public static ClickHouseFloatArrayValue ofEmpty() {
return of(ClickHouseValues.EMPTY_FLOAT_ARRAY);
}
/**
* Wrap the given value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseFloatArrayValue of(float[] value) {
return of(null, value);
}
/**
* 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 ClickHouseFloatArrayValue of(ClickHouseValue ref, float[] value) {
return ref instanceof ClickHouseFloatArrayValue ? ((ClickHouseFloatArrayValue) ref).set(value)
: new ClickHouseFloatArrayValue(value);
}
protected ClickHouseFloatArrayValue(float[] value) {
super(value);
}
@Override
protected ClickHouseFloatArrayValue set(float[] value) {
super.set(ClickHouseChecker.nonNull(value, ClickHouseValues.TYPE_ARRAY));
return this;
}
@Override
public Object[] asArray() {
float[] v = getValue();
int len = v.length;
Float[] array = new Float[len];
for (int i = 0; i < len; i++) {
array[i] = Float.valueOf(v[i]);
}
return array;
}
@Override
public E[] asArray(Class clazz) {
float[] v = getValue();
int len = v.length;
E[] array = ClickHouseValues.createObjectArray(clazz, len, 1);
for (int i = 0; i < len; i++) {
array[i] = clazz.cast(v[i]);
}
return array;
}
@Override
public Map asMap(Class keyClass, Class valueClass) {
if (keyClass == null || valueClass == null) {
throw new IllegalArgumentException("Non-null key and value classes are required");
}
float[] v = getValue();
Map map = new LinkedHashMap<>();
for (int i = 0; i < v.length; i++) {
map.put(keyClass.cast(i + 1), valueClass.cast(v[i]));
}
// why not use Collections.unmodifiableMap(map) here?
return map;
}
@Override
public String asString() {
float[] value = getValue();
int len = value == null ? 0 : value.length;
if (len == 0) {
return ClickHouseValues.EMPTY_ARRAY_EXPR;
}
StringBuilder builder = new StringBuilder().append('[').append(value[0]);
for (int i = 1; i < len; i++) {
builder.append(',').append(value[i]);
}
return builder.append(']').toString();
}
@Override
public ClickHouseFloatArrayValue copy(boolean deep) {
if (!deep) {
return new ClickHouseFloatArrayValue(getValue());
}
float[] value = getValue();
return new ClickHouseFloatArrayValue(Arrays.copyOf(value, value.length));
}
@Override
public boolean isNullable() {
return false;
}
@Override
public boolean isNullOrEmpty() {
return getValue().length == 0;
}
@Override
public ClickHouseFloatArrayValue resetToDefault() {
set(ClickHouseValues.EMPTY_FLOAT_ARRAY);
return this;
}
@Override
public ClickHouseFloatArrayValue resetToNullOrEmpty() {
return resetToDefault();
}
@Override
public String toSqlExpression() {
return asString();
}
@Override
public ClickHouseFloatArrayValue update(boolean[] value) {
int len = value == null ? 0 : value.length;
if (len == 0) {
return resetToNullOrEmpty();
}
float[] v = new float[len];
for (int i = 0; i < len; i++) {
v[i] = value[i] ? 1F : (float) 0;
}
return set(v);
}
@Override
public ClickHouseFloatArrayValue update(char[] value) {
int len = value == null ? 0 : value.length;
if (len == 0) {
return resetToNullOrEmpty();
}
float[] v = new float[len];
for (int i = 0; i < len; i++) {
v[i] = value[i];
}
return set(v);
}
@Override
public ClickHouseFloatArrayValue update(byte value) {
return set(new float[] { value });
}
@Override
public ClickHouseFloatArrayValue update(byte[] value) {
int len = value == null ? 0 : value.length;
if (len == 0) {
return resetToNullOrEmpty();
}
float[] v = new float[len];
for (int i = 0; i < len; i++) {
v[i] = value[i];
}
return set(v);
}
@Override
public ClickHouseFloatArrayValue update(short value) {
return set(new float[] { value });
}
@Override
public ClickHouseFloatArrayValue update(short[] value) {
int len = value == null ? 0 : value.length;
if (len == 0) {
return resetToNullOrEmpty();
}
float[] v = new float[len];
for (int i = 0; i < len; i++) {
v[i] = value[i];
}
return set(v);
}
@Override
public ClickHouseFloatArrayValue update(int value) {
return set(new float[] { value });
}
@Override
public ClickHouseFloatArrayValue update(int[] value) {
int len = value == null ? 0 : value.length;
if (len == 0) {
return resetToNullOrEmpty();
}
float[] v = new float[len];
for (int i = 0; i < len; i++) {
v[i] = value[i];
}
return set(v);
}
@Override
public ClickHouseFloatArrayValue update(long value) {
return set(new float[] { value });
}
@Override
public ClickHouseFloatArrayValue update(long[] value) {
int len = value == null ? 0 : value.length;
if (len == 0) {
return resetToNullOrEmpty();
}
float[] v = new float[len];
for (int i = 0; i < len; i++) {
v[i] = value[i];
}
return set(v);
}
@Override
public ClickHouseFloatArrayValue update(float value) {
return set(new float[] { value });
}
@Override
public ClickHouseFloatArrayValue update(float[] value) {
int len = value == null ? 0 : value.length;
if (len == 0) {
return resetToNullOrEmpty();
}
return set(value);
}
@Override
public ClickHouseFloatArrayValue update(double value) {
return set(new float[] { (float) value });
}
@Override
public ClickHouseFloatArrayValue update(double[] value) {
int len = value == null ? 0 : value.length;
if (len == 0) {
return resetToNullOrEmpty();
}
float[] v = new float[len];
for (int i = 0; i < len; i++) {
v[i] = (float) value[i];
}
return set(v);
}
@Override
public ClickHouseFloatArrayValue update(BigInteger value) {
return set(value == null ? ClickHouseValues.EMPTY_FLOAT_ARRAY : new float[] { value.floatValue() });
}
@Override
public ClickHouseFloatArrayValue update(BigDecimal value) {
return set(value == null ? ClickHouseValues.EMPTY_FLOAT_ARRAY : new float[] { value.floatValue() });
}
@Override
public ClickHouseFloatArrayValue update(Enum value) {
return set(value == null ? ClickHouseValues.EMPTY_FLOAT_ARRAY : new float[] { value.ordinal() });
}
@Override
public ClickHouseFloatArrayValue update(Inet4Address value) {
if (value == null) {
return resetToNullOrEmpty();
}
throw newUnsupportedException(ClickHouseValues.TYPE_IPV4, TYPE_NAME);
}
@Override
public ClickHouseFloatArrayValue update(Inet6Address value) {
if (value == null) {
return resetToNullOrEmpty();
}
throw newUnsupportedException(ClickHouseValues.TYPE_IPV6, TYPE_NAME);
}
@Override
public ClickHouseFloatArrayValue update(LocalDate value) {
return set(value == null ? ClickHouseValues.EMPTY_FLOAT_ARRAY : new float[] { value.toEpochDay() });
}
@Override
public ClickHouseFloatArrayValue update(LocalTime value) {
return set(value == null ? ClickHouseValues.EMPTY_FLOAT_ARRAY : new float[] { value.toSecondOfDay() });
}
@Override
public ClickHouseFloatArrayValue update(LocalDateTime value) {
return set(value == null ? ClickHouseValues.EMPTY_FLOAT_ARRAY
: new float[] { value.toEpochSecond(ZoneOffset.UTC) });
}
@Override
public ClickHouseFloatArrayValue update(Collection value) {
int size = value == null ? 0 : value.size();
if (size == 0) {
return resetToNullOrEmpty();
}
float[] v = new float[size];
int index = 0;
for (Object o : value) {
v[index++] = o == null ? 0 : ((Number) o).floatValue();
}
return set(v);
}
@Override
public ClickHouseFloatArrayValue update(Enumeration value) {
if (value == null) {
return resetToNullOrEmpty();
}
List v = new LinkedList<>();
while (value.hasMoreElements()) {
v.add((Number) value.nextElement());
}
float[] values = new float[v.size()];
int index = 0;
for (Number n : v) {
values[index++] = n == null ? 0 : n.floatValue();
}
return set(values);
}
@Override
public ClickHouseFloatArrayValue update(Map value) {
int size = value == null ? 0 : value.size();
if (size == 0) {
return resetToNullOrEmpty();
}
float[] v = new float[size];
int index = 0;
for (Entry e : value.entrySet()) {
Object o = e.getValue();
v[index++] = o == null ? 0 : ((Number) e.getValue()).floatValue();
}
return set(v);
}
@Override
public ClickHouseFloatArrayValue update(String value) {
if (ClickHouseChecker.isNullOrBlank(value)) {
set(ClickHouseValues.EMPTY_FLOAT_ARRAY);
} else {
List list = ClickHouseUtils.readValueArray(value, 0, value.length());
if (list.isEmpty()) {
set(ClickHouseValues.EMPTY_FLOAT_ARRAY);
} else {
float[] arr = new float[list.size()];
int index = 0;
for (String v : list) {
arr[index++] = v == null ? 0F : Float.parseFloat(v);
}
set(arr);
}
}
return this;
}
@Override
public ClickHouseFloatArrayValue update(UUID value) {
if (value == null) {
return resetToNullOrEmpty();
}
throw newUnsupportedException(ClickHouseValues.TYPE_UUID, TYPE_NAME);
}
@Override
public ClickHouseFloatArrayValue update(ClickHouseValue value) {
if (value == null || value.isNullOrEmpty()) {
return resetToNullOrEmpty();
} else if (value instanceof ClickHouseFloatArrayValue) {
set(((ClickHouseFloatArrayValue) value).getValue());
} else {
update(value.asArray());
}
return this;
}
@Override
public ClickHouseFloatArrayValue update(Object[] value) {
int len = value == null ? 0 : value.length;
if (len == 0) {
return resetToNullOrEmpty();
} else {
float[] values = new float[len];
for (int i = 0; i < len; i++) {
Object o = value[i];
values[i] = o == null ? 0 : ((Number) o).floatValue();
}
set(values);
}
return this;
}
@Override
public ClickHouseValue updateUnknown(Object value) {
if (value == null) {
return resetToNullOrEmpty();
} else if (value instanceof Number) {
return set(new float[] { ((Number) value).floatValue() });
} else {
throw newUnsupportedException(value.getClass().getName(), TYPE_NAME);
}
}
@Override
public ClickHouseFloatArrayValue update(Object value) {
if (value instanceof float[]) {
set((float[]) value);
} else {
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;
}
return Arrays.equals(getValue(), ((ClickHouseFloatArrayValue) obj).getValue());
}
@Override
public int hashCode() {
return Arrays.hashCode(getValue());
}
@Override
public ClickHouseArraySequence allocate(int length, Class clazz, int level) {
if (length < 1) {
resetToDefault();
} else {
set(new float[length]);
}
return this;
}
@Override
public int length() {
return isNullOrEmpty() ? 0 : getValue().length;
}
@Override
public V getValue(int index, V value) {
value.update(getValue()[index]);
return value;
}
@Override
public ClickHouseArraySequence setValue(int index, ClickHouseValue value) {
getValue()[index] = value.asFloat();
return this;
}
}