package foundation.value;
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import java.math.BigDecimal;
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import java.math.BigInteger;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import foundation.server.config.DBaseType;
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import foundation.util.Util;
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public class BigDecimalTranslator extends ITranslator {
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private static Pattern pattern = Pattern.compile("^-?\\d+(\\.\\d+)?([eE][+-]?\\d+)?$");
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@Override
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public BigDecimal load(Object value){
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if (Util.isEmpty(value) || value == null || value == ValueType.Null) {
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return null;
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}
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if (value instanceof BigDecimal) {
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return (BigDecimal) value;
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}
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return toBigDecimal(value);
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}
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@Override
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public BigDecimal load(String value) throws Exception {
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if (Util.isEmpty(value)) {
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return null;
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}
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BigDecimal result = new BigDecimal(value);
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return result;
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}
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@Override
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public String toString(Object value) throws Exception {
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if (value == null || value == ValueType.Null) {
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return null;
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}
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return value.toString();
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}
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@Override
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public String toSqlString(DBaseType dbaseType, Object value) throws Exception {
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if (Util.isEmpty(value) || value == null || value == ValueType.Null) {
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return "null";
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}
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return value.toString();
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}
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@Override
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public String toJSONString(Object value) throws Exception {
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if (value == null || value == ValueType.Null) {
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return "null";
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}
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return value.toString();
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}
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@Override
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public String toSchemaString(Object value) throws Exception {
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if (Util.isEmpty(value) || value == null || value == ValueType.Null) {
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return "";
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}
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return value.toString();
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}
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private BigDecimal toBigDecimal(Object value){
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if (Util.isEmpty(value) || value == null || value == ValueType.Null) {
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return null;
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}
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if (value instanceof BigDecimal) {
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return (BigDecimal) value;
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}
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else if (value instanceof String) {
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return new BigDecimal((String) value);
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}
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else if (value instanceof Integer) {
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return new BigDecimal((Integer) value);
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}
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else if (value instanceof Long) {
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return new BigDecimal((Long) value);
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}
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else if (value instanceof Double) {
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return BigDecimal.valueOf((Double) value);
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}
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else if (value instanceof Float) {
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return BigDecimal.valueOf((Float) value);
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}
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else if (value instanceof Short) {
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return new BigDecimal((Short) value);
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}
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else if (value instanceof Byte) {
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return new BigDecimal((Byte) value);
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}
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else if (value instanceof BigInteger) {
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return new BigDecimal((BigInteger) value);
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}
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return null;
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}
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@Override
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public Object toTranslatorTypeValue(Object value) throws Exception {
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return new BigDecimal(value.toString());
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}
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@Override
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public String checkType(Object object) {
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String value = String.valueOf(object);
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Matcher matcher = pattern.matcher(value);
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if (matcher.find()) {
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return null;
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}
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return "数字无法识别";
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}
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/*
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public Integer toInteger(Object value) throws Exception {
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if (value == null || value == ValueType.Null) {
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return null;
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}
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return ((BigDecimal)value).intValue();
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}
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public Double toDouble(Object value) throws Exception {
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if (value == null || value == ValueType.Null) {
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return null;
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}
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return ((BigDecimal)value).doubleValue();
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}
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public Boolean toBoolean(Object value) throws Exception {
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if (value == null || value == ValueType.Null) {
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return false;
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}
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return ((BigDecimal)value).compareTo(BigDecimal.ZERO) > 0;
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}
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public Date toDate(Object value) throws Exception {
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return null;
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}
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public Clob toClob(Object object) throws Exception {
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return null;
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}
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*/
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@Override
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public Class<?> getDataClass() {
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return BigDecimal.class;
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}
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}
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