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DoubleModelValue.java
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DoubleModelValue.java
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2023 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.dmr;
import org.jboss.dmr.stream.ModelException;
import org.jboss.dmr.stream.ModelWriter;
import java.io.DataOutput;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;
/**
* @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a>
*/
final class DoubleModelValue extends ModelValue {
private final double value;
DoubleModelValue(final double value) {
super(ModelType.DOUBLE);
this.value = value;
}
@Override
void writeExternal(final DataOutput out) throws IOException {
out.write(ModelType.DOUBLE.typeChar);
out.writeDouble(value);
}
@Override
long asLong() {
return (long) value;
}
@Override
long asLong(final long defVal) {
return (long) value;
}
@Override
int asInt() {
return (int) value;
}
@Override
int asInt(final int defVal) {
return (int) value;
}
@Override
boolean asBoolean() {
return value != 0;
}
@Override
boolean asBoolean(final boolean defVal) {
return value != 0;
}
@Override
double asDouble() {
return value;
}
@Override
double asDouble(final double defVal) {
return value;
}
@Override
byte[] asBytes() {
final long value = Double.doubleToLongBits(this.value);
final byte[] bytes = new byte[8];
bytes[0] = (byte) (value >>> 56);
bytes[1] = (byte) (value >>> 48);
bytes[2] = (byte) (value >>> 40);
bytes[3] = (byte) (value >>> 32);
bytes[4] = (byte) (value >>> 24);
bytes[5] = (byte) (value >>> 16);
bytes[6] = (byte) (value >>> 8);
bytes[7] = (byte) (value);
return bytes;
}
@Override
BigDecimal asBigDecimal() {
// Use the "pretty" over the "exact"
return BigDecimal.valueOf(value);
}
@Override
BigInteger asBigInteger() {
return BigInteger.valueOf((long) value);
}
@Override
String asString() {
return Double.toString(value);
}
@Override
ValueExpression asExpression() {
return new ValueExpression(asString());
}
/**
* Determine whether this object is equal to another.
*
* @param other the other object
* @return {@code true} if they are equal, {@code false} otherwise
*/
@Override
public boolean equals(final Object other) {
return other instanceof DoubleModelValue && equals((DoubleModelValue)other);
}
/**
* Determine whether this object is equal to another.
*
* @param other the other object
* @return {@code true} if they are equal, {@code false} otherwise
*/
public boolean equals(final DoubleModelValue other) {
return this == other || other != null && other.value == value;
}
@Override
public int hashCode() {
return Double.valueOf(value).hashCode();
}
@Override
void write(final ModelWriter writer) throws IOException, ModelException {
writer.writeDouble(value);
}
}