Revision 2080 org.gvsig.tools/library/trunk/org.gvsig.tools/org.gvsig.tools.lib/src/main/java/org/gvsig/tools/dataTypes/impl/coercion/CoerceToLong.java
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*/ |
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package org.gvsig.tools.dataTypes.impl.coercion; |
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import java.text.NumberFormat; |
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import java.text.ParsePosition; |
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import java.util.Date; |
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import java.util.Locale;
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import org.gvsig.tools.dataTypes.AbstractCoercion;
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import org.gvsig.tools.dataTypes.CoercionException; |
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import org.gvsig.tools.dataTypes.DataTypesManager.CoercionWithLocale;
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import org.gvsig.tools.dataTypes.CoercionContext;
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public class CoerceToLong implements CoercionWithLocale {
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@SuppressWarnings("UseSpecificCatch")
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public class CoerceToLong extends AbstractCoercion {
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@Override |
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public Object coerce(Object value) throws CoercionException {
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if (value == null) {
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return null; |
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} |
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try {
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if (!(value instanceof Long)) {
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if (value instanceof Number) {
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value = ((Number) value).longValue(); |
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} else if( value instanceof Boolean ) {
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return (long)((boolean)value ? 1:0); |
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} else if (value instanceof Date) {
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value = (long)(((Date)value).getTime()); |
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} else {
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String s = value.toString(); |
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if (s == null) {
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return null; |
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} |
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s = s.trim().toLowerCase(); |
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if (s.length() == 0) {
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return null; |
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} |
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if (s.startsWith("0x")) {
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value = Long.valueOf(s.substring(2), 16); |
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} else {
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try {
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value = Long.valueOf(s); |
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} catch (NumberFormatException ex) {
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value = Float.valueOf(s); |
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value = ((Number) value).longValue(); |
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} |
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} |
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} |
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} |
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return value; |
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} catch (Exception e) {
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throw new CoercionException(e); |
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} |
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@Override |
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public Object coerce(Object value, CoercionContext context) throws CoercionException {
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if (value == null || value instanceof Long) {
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return value; |
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} |
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Long num; |
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try {
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if (value instanceof Number) {
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num = ((Number) value).longValue(); |
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@Override |
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public Object coerce(Object value, Locale locale) throws CoercionException {
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if (value == null) {
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return null; |
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} else if (value instanceof Boolean) {
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num = ((boolean) value ? 1l : 0l); |
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} else if (value instanceof Date) {
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num = ((Date) value).getTime(); |
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} else {
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String s = value.toString(); |
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if (s == null) {
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return null; |
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} |
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try {
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if (!(value instanceof Long)) {
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if (value instanceof Number) {
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value = ((Number) value).longValue(); |
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} else if( value instanceof Boolean ) {
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return (long)((boolean)value ? 1:0); |
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} else if (value instanceof Date) {
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value = (long)(((Date)value).getTime()); |
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} else {
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String s = value.toString(); |
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if (s == null) {
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return null; |
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} |
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s = s.trim().toLowerCase(); |
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if (s.length() == 0) {
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return null; |
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} |
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if (s.startsWith("0x")) {
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value = Long.valueOf(s.substring(2), 16); |
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} else {
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try {
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value = Long.valueOf(s); |
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} catch (NumberFormatException ex) {
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ParsePosition p = new ParsePosition(0); |
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NumberFormat nf = NumberFormat.getInstance(locale); |
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Number num = nf.parse(s, p); |
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if (p.getErrorIndex() > 0 || p.getIndex() < s.length()) {
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throw new CoercionException("can't coerce to double with locale " + locale.getLanguage());
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} |
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value = ((Number) num).longValue(); |
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} |
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} |
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} |
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} |
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return value; |
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} catch (Exception e) {
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throw new CoercionException(e); |
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s = s.trim().toLowerCase(); |
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if (s.length() == 0) {
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return null; |
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} |
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} |
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if (s.startsWith("0x")) {
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num = Long.valueOf(s.substring(2), 16); |
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} else {
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if (s.startsWith("+")) {
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s = s.substring(1); |
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} |
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num = Long.valueOf(s); |
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} |
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} |
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return num; |
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} catch (Exception e) {
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throw new CoercionException("Can't coerce '" + value.toString() + "' to long.", e);
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} |
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} |
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} |
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