/* * 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; } }