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com.weavechain.core.data.ConvertUtils Maven / Gradle / Ivy
package com.weavechain.core.data;
import com.weavechain.core.encoding.FormatUtils;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.time.*;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
public class ConvertUtils {
private static final ZoneId zoneUTC = ZoneId.of("UTC");
public static Comparable convert(Object obj, DataType type) {
return convert(obj, type, null);
}
public static Comparable convertDefault(Object obj, DataType type) {
return convert(obj, type, getDefault(type));
}
public static Comparable convert(Object obj, DataType type, Object defaultValue) {
if (DataType.LONG.equals(type) || DataType.TIMESTAMP.equals(type)) {
return convertToLong(obj, defaultValue != null ? convertToLong(defaultValue) : null);
} else if (DataType.DOUBLE.equals(type)) {
return convertToDouble(obj, defaultValue != null ? convertToDouble(defaultValue) : null);
} else if (DataType.STRING.equals(type) || DataType.DATE.equals(type) || DataType.LIST.equals(type) || DataType.MAP.equals(type)) {
return convertToString(obj, defaultValue != null ? convertToString(defaultValue) : null);
} else if (type == null) {
return (Comparable)obj;
} else {
throw new IllegalArgumentException("Unsupported data type");
}
}
public static DataType genericTypeOf(Object value) {
if (value instanceof Float || value instanceof Double || value instanceof BigDecimal) {
return DataType.DOUBLE;
} else if (value instanceof Number) {
return DataType.LONG;
} else {
return DataType.STRING;
}
}
public static Object getDefault(DataType type) {
if (DataType.LONG.equals(type) || DataType.TIMESTAMP.equals(type)) {
return 0L;
} else if (DataType.DOUBLE.equals(type)) {
return 0d;
} else if (DataType.STRING.equals(type) || DataType.DATE.equals(type) || DataType.LIST.equals(type) || DataType.MAP.equals(type) || type == null) {
return "";
} else {
throw new IllegalArgumentException("Unsupported data type");
}
}
public static Integer convertToInteger(Object obj) {
return convertToInteger(obj, null);
}
public static Integer convertToInteger(Object obj, Integer defaultValue) {
Long result = convertToLong(obj, defaultValue != null ? defaultValue.longValue() : null);
return result != null ? result.intValue() : defaultValue;
}
public static List convertToLongList(Object obj) {
List result = new ArrayList<>();
if (obj instanceof List) {
for (Object it : (List)obj) {
result.add(convertToLong(it, null));
}
} else {
return null;
}
return result;
}
public static Long convertToLong(Object obj) {
return convertToLong(obj, null);
}
public static Long convertToLong(Object obj, Long defaultValue) {
if (obj == null || obj.toString().isEmpty() || "null".equals(obj.toString().toLowerCase(Locale.ROOT))) {
return defaultValue;
} else if (obj instanceof Boolean) {
return (Boolean)obj ? 1L : 0L;
} else if (obj instanceof Long) {
return (Long)obj;
} else if (obj instanceof Integer) {
return ((Integer)obj).longValue();
} else if (obj instanceof Double) {
return ((Double)obj).longValue();
} else if (obj instanceof String) {
return convertToDouble(obj).longValue();
} else if (obj instanceof BigInteger) {
return ((BigInteger) obj).longValue();
} else if (obj instanceof BigDecimal) {
return ((BigDecimal) obj).longValue();
} else {
return (long)Double.parseDouble(obj.toString());
}
}
public static Float convertToFloat(Object obj) {
return convertToFloat(obj, null);
}
public static Float convertToFloat(Object obj, Float defaultValue) {
Double value = convertToDouble(obj, defaultValue != null ? defaultValue.doubleValue() : null);
return value != null ? value.floatValue() : null;
}
public static Double convertToDouble(Object obj) {
return convertToDouble(obj, null);
}
public static Double convertToDouble(Object obj, Double defaultValue) {
if (obj == null || obj.toString().isEmpty() || "null".equals(obj.toString().toLowerCase(Locale.ROOT))) {
return defaultValue;
} else if (obj instanceof Boolean) {
return (Boolean)obj ? 1.0 : 0.0;
} else if (obj instanceof Long) {
return (double)(Long)obj;
} else if (obj instanceof Integer) {
return (double)((Integer)obj);
} else if (obj instanceof Float) {
return (double)((Float)obj);
} else if (obj instanceof Double) {
return ((Double)obj);
} else if (obj instanceof BigInteger) {
return ((BigInteger) obj).doubleValue();
} else if (obj instanceof BigDecimal) {
return ((BigDecimal) obj).doubleValue();
} else if (obj instanceof String) {
String item = ((String)obj).trim();
if (item.contains(" ")) {
//try timestamp conversion
LocalDateTime date = LocalDateTime.parse(item, FormatUtils.FMT_DATE_FORMAT.get());
return (double)date.atZone(zoneUTC).toInstant().toEpochMilli();
} else {
return Double.parseDouble(item);
}
} else {
return Double.parseDouble(obj.toString());
}
}
public static BigInteger convertToBigInteger(Object obj) {
return convertToBigInteger(obj, null);
}
public static BigInteger convertToBigInteger(Object obj, BigInteger defaultValue) {
if (obj == null || obj.toString().isEmpty() || "null".equals(obj.toString().toLowerCase(Locale.ROOT))) {
return defaultValue;
} else if (obj instanceof Boolean) {
return (Boolean)obj ? BigInteger.ONE : BigInteger.ZERO;
} else if (obj instanceof Long) {
return BigInteger.valueOf((long)obj);
} else if (obj instanceof Integer) {
return BigInteger.valueOf((long)((Integer)obj));
} else if (obj instanceof Double) {
return BigInteger.valueOf(((Double)obj).longValue());
} else if (obj instanceof BigDecimal) {
return ((BigDecimal)obj).toBigInteger();
} else if (obj instanceof String) {
return new BigInteger((String)obj);
} else {
return BigInteger.valueOf((long)(Double.parseDouble(obj.toString())));
}
}
public static BigDecimal convertToBigDecimal(Object obj) {
return convertToBigDecimal(obj, null);
}
public static BigDecimal convertToBigDecimal(Object obj, BigDecimal defaultValue) {
if (obj == null || obj.toString().isEmpty() || "null".equals(obj.toString().toLowerCase(Locale.ROOT))) {
return defaultValue;
} else if (obj instanceof Boolean) {
return (Boolean)obj ? BigDecimal.ONE : BigDecimal.ZERO;
} else if (obj instanceof Long) {
return BigDecimal.valueOf((long)obj);
} else if (obj instanceof Integer) {
return BigDecimal.valueOf((long)((Integer)obj));
} else if (obj instanceof Double) {
return BigDecimal.valueOf((Double)obj);
} else if (obj instanceof BigInteger) {
return new BigDecimal((BigInteger)obj);
} else if (obj instanceof String) {
return new BigDecimal((String) obj);
} else {
return BigDecimal.valueOf(Double.parseDouble(obj.toString()));
}
}
public static BigDecimal convertToBigDecimalInclDate(Object obj) {
return convertToBigDecimalInclDate(obj, null);
}
public static BigDecimal convertToBigDecimalInclDate(Object obj, BigDecimal defaultValue) {
if (obj == null || obj.toString().isEmpty() || "null".equals(obj.toString().toLowerCase(Locale.ROOT))) {
return defaultValue;
} else if (obj instanceof Boolean) {
return (Boolean)obj ? BigDecimal.ONE : BigDecimal.ZERO;
} else if (obj instanceof Long) {
return BigDecimal.valueOf((long)obj);
} else if (obj instanceof Integer) {
return BigDecimal.valueOf((long)((Integer)obj));
} else if (obj instanceof Double) {
return BigDecimal.valueOf(((Double)obj).longValue());
} else if (obj instanceof String) {
try {
return new BigDecimal((String) obj);
} catch (NumberFormatException e) {
return tryReadDate((String)obj, FormatUtils.FMT_ISO_DATE_FORMAT_OFFSET.get());
}
} else {
return BigDecimal.valueOf((long)(Double.parseDouble(obj.toString())));
}
}
public static BigDecimal tryReadDate(String obj, DateTimeFormatter formatter) {
if (obj.length() == 10) {
LocalDate date = LocalDate.parse((String) obj, FormatUtils.FMT_DAY_FORMAT.get());
return BigDecimal.valueOf(date.atStartOfDay().toInstant(ZoneOffset.UTC).toEpochMilli());
} else {
try {
ZonedDateTime date = ZonedDateTime.parse(obj, FormatUtils.FMT_ISO_DATE_FORMAT_OFFSET.get()).withZoneSameInstant(zoneUTC);
return BigDecimal.valueOf(date.toInstant().toEpochMilli());
} catch (Exception e) {
try {
ZonedDateTime date = ZonedDateTime.parse(obj, FormatUtils.FMT_ISO_DATE_FORMAT.get()).withZoneSameInstant(zoneUTC);
return BigDecimal.valueOf(date.toInstant().toEpochMilli());
} catch (Exception e2) {
LocalDateTime date = LocalDateTime.parse(obj, FormatUtils.FMT_DATE_FORMAT.get());
return BigDecimal.valueOf(date.toInstant(ZoneOffset.UTC).toEpochMilli());
}
}
}
}
public static String convertToString(Object obj) {
return convertToString(obj, null);
}
public static String convertToString(Object obj, String defaultValue) {
if (obj == null) {
return defaultValue;
} else if (obj instanceof String) {
return (String)obj;
} else {
return obj.toString();
}
}
public static Boolean convertToBoolean(Object obj) {
return convertToBoolean(obj, null);
}
public static Boolean convertToBoolean(Object obj, Boolean defaultValue) {
if (obj instanceof String && "false".equals(obj.toString().toLowerCase(Locale.ROOT))) {
return false;
} else if (obj instanceof String && "true".equals(obj.toString().toLowerCase(Locale.ROOT))) {
return true;
} else {
Long numeric = convertToLong(obj);
return numeric != null ? numeric != 0 : (defaultValue != null ? defaultValue : false);
}
}
public static Object convertToType(Object obj, String type) {
if ("I32".equals(type)) {
return convertToInteger(obj);
} else if ("I64".equals(type)) {
return convertToLong(obj);
} else if ("F32".equals(type)) {
return convertToFloat(obj);
} else if ("F65".equals(type)) {
return convertToDouble(obj);
} else {
return convertToString(obj);
}
}
}
