package com.fasterxml.jackson.databind.node; import java.io.IOException; import java.math.BigDecimal; import java.math.BigInteger; import com.fasterxml.jackson.core.*; import com.fasterxml.jackson.databind.*; /** * Numeric node that contains values that do not fit in simple * integer (int, long) or floating point (double) values. */ public class DecimalNode extends NumericNode { public static final DecimalNode ZERO = new DecimalNode(BigDecimal.ZERO); private final static BigDecimal MIN_INTEGER = BigDecimal.valueOf(Integer.MIN_VALUE); private final static BigDecimal MAX_INTEGER = BigDecimal.valueOf(Integer.MAX_VALUE); private final static BigDecimal MIN_LONG = BigDecimal.valueOf(Long.MIN_VALUE); private final static BigDecimal MAX_LONG = BigDecimal.valueOf(Long.MAX_VALUE); final protected BigDecimal _value; /* /********************************************************** /* Construction /********************************************************** */ public DecimalNode(BigDecimal v) { _value = v; } public static DecimalNode valueOf(BigDecimal d) { return new DecimalNode(d); } /* /********************************************************** /* BaseJsonNode extended API /********************************************************** */ @Override public JsonToken asToken() { return JsonToken.VALUE_NUMBER_FLOAT; } @Override public JsonParser.NumberType numberType() { return JsonParser.NumberType.BIG_DECIMAL; } /* /********************************************************** /* Overrridden JsonNode methods /********************************************************** */ @Override public boolean isFloatingPointNumber() { return true; } @Override public boolean isBigDecimal() { return true; } @Override public boolean canConvertToInt() { return (_value.compareTo(MIN_INTEGER) >= 0) && (_value.compareTo(MAX_INTEGER) <= 0); } @Override public boolean canConvertToLong() { return (_value.compareTo(MIN_LONG) >= 0) && (_value.compareTo(MAX_LONG) <= 0); } @Override public Number numberValue() { return _value; } @Override public short shortValue() { return _value.shortValue(); } @Override public int intValue() { return _value.intValue(); } @Override public long longValue() { return _value.longValue(); } @Override public BigInteger bigIntegerValue() { return _value.toBigInteger(); } @Override public float floatValue() { return _value.floatValue(); } @Override public double doubleValue() { return _value.doubleValue(); } @Override public BigDecimal decimalValue() { return _value; } @Override public String asText() { return _value.toString(); } @Override public final void serialize(JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException { // 07-Jul-2013, tatu: Should be handled by propagating setting to JsonGenerator // so this should not be needed: /* if (provider.isEnabled(SerializationFeature.WRITE_BIGDECIMAL_AS_PLAIN)) { if (!(jgen instanceof TokenBuffer)) { // [Issue#232] jgen.writeNumber(((BigDecimal) _value).toPlainString()); return; } } */ jgen.writeNumber(_value); } @Override public boolean equals(Object o) { if (o == this) return true; if (o == null) return false; if (o instanceof DecimalNode) { return ((DecimalNode) o)._value.compareTo(_value) == 0; } return false; } @Override public int hashCode() { return Double.valueOf(doubleValue()).hashCode(); } }