/*
* Licensed to GraphHopper GmbH under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership.
*
* GraphHopper GmbH licenses this file to you 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 com.graphhopper.routing.util;
/**
* Encapsulates a bit-encoded value.
* <p>
*
* @author Nop
*/
public class EncodedDoubleValue extends EncodedValue {
public EncodedDoubleValue(String name, int shift, int bits, double factor, long defaultValue, int maxValue) {
this(name, shift, bits, factor, defaultValue, maxValue, true);
}
public EncodedDoubleValue(String name, int shift, int bits, double factor, long defaultValue, int maxValue, boolean allowZero) {
super(name, shift, bits, factor, defaultValue, maxValue, allowZero);
}
@Override
public long setValue(long flags, long value) {
throw new IllegalStateException("Use setDoubleValue instead");
}
@Override
public long getValue(long flags) {
throw new IllegalStateException("Use setDoubleValue instead");
}
@Override
public long setDefaultValue(long flags) {
return setDoubleValue(flags, defaultValue);
}
public long setDoubleValue(long flags, double value) {
if (Double.isNaN(value))
throw new IllegalArgumentException("Value cannot be NaN");
// scale value
long tmpValue = Math.round(value / factor);
checkValue((long) (tmpValue * factor));
tmpValue <<= shift;
// clear value bits
flags &= ~mask;
// set value
return flags | tmpValue;
}
public double getDoubleValue(long flags) {
// find value
flags &= mask;
flags >>>= shift;
return flags * factor;
}
}