com.fasterxml.jackson.databind.node.FloatNode.java Source code

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Here is the source code for com.fasterxml.jackson.databind.node.FloatNode.java

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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.core.io.NumberOutput;
import com.fasterxml.jackson.databind.SerializerProvider;

/**
 * <code>JsonNode</code> implementation for efficiently containing 32-bit
 * `float` values.
 * 
 * @since 2.2
 */
public class FloatNode extends NumericNode {
    protected final float _value;

    /* 
    /**********************************************************
    /* Construction
    /**********************************************************
     */

    public FloatNode(float v) {
        _value = v;
    }

    public static FloatNode valueOf(float v) {
        return new FloatNode(v);
    }

    /* 
    /**********************************************************
    /* BaseJsonNode extended API
    /**********************************************************
     */

    @Override
    public JsonToken asToken() {
        return JsonToken.VALUE_NUMBER_FLOAT;
    }

    @Override
    public JsonParser.NumberType numberType() {
        return JsonParser.NumberType.FLOAT;
    }

    /* 
    /**********************************************************
    /* Overrridden JsonNode methods
    /**********************************************************
     */

    @Override
    public boolean isFloatingPointNumber() {
        return true;
    }

    @Override
    public boolean isFloat() {
        return true;
    }

    @Override
    public boolean canConvertToInt() {
        return (_value >= Integer.MIN_VALUE && _value <= Integer.MAX_VALUE);
    }

    @Override
    public boolean canConvertToLong() {
        return (_value >= Long.MIN_VALUE && _value <= Long.MAX_VALUE);
    }

    @Override
    public Number numberValue() {
        return Float.valueOf(_value);
    }

    @Override
    public short shortValue() {
        return (short) _value;
    }

    @Override
    public int intValue() {
        return (int) _value;
    }

    @Override
    public long longValue() {
        return (long) _value;
    }

    @Override
    public float floatValue() {
        return (float) _value;
    }

    @Override
    public double doubleValue() {
        return _value;
    }

    @Override
    public BigDecimal decimalValue() {
        return BigDecimal.valueOf(_value);
    }

    @Override
    public BigInteger bigIntegerValue() {
        return decimalValue().toBigInteger();
    }

    @Override
    public String asText() {
        return NumberOutput.toString(_value);
    }

    @Override
    public final void serialize(JsonGenerator jg, SerializerProvider provider)
            throws IOException, JsonProcessingException {
        jg.writeNumber(_value);
    }

    @Override
    public boolean equals(Object o) {
        if (o == this)
            return true;
        if (o == null)
            return false;
        if (o instanceof FloatNode) {
            // We must account for NaNs: NaN does not equal NaN, therefore we have
            // to use Double.compare().
            final float otherValue = ((FloatNode) o)._value;
            return Float.compare(_value, otherValue) == 0;
        }
        return false;
    }

    @Override
    public int hashCode() {
        return Float.floatToIntBits(_value);
    }
}