X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/DistanceUnits.java diff --git a/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/DistanceUnits.java b/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/DistanceUnits.java deleted file mode 100644 index f25e06b..0000000 --- a/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geometry/DistanceUnits.java +++ /dev/null @@ -1,110 +0,0 @@ -/** - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF 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 org.apache.lucene.spatial.geometry; - -/** - * Enum representing difference distance units, currently only kilometers and - * miles - */ -public enum DistanceUnits { - - MILES("miles", 3959, 24902), - KILOMETERS("km", 6371, 40076); - - private static final double MILES_KILOMETRES_RATIO = 1.609344; - - private final String unit; - - private final double earthCircumference; - - private final double earthRadius; - - /** - * Creates a new DistanceUnit that represents the given unit - * - * @param unit Distance unit in String form - * @param earthRadius Radius of the Earth in the specific distance unit - * @param earthCircumfence Circumference of the Earth in the specific distance unit - */ - DistanceUnits(String unit, double earthRadius, double earthCircumfence) { - this.unit = unit; - this.earthCircumference = earthCircumfence; - this.earthRadius = earthRadius; - } - - /** - * Returns the DistanceUnit which represents the given unit - * - * @param unit Unit whose DistanceUnit should be found - * @return DistanceUnit representing the unit - * @throws IllegalArgumentException if no DistanceUnit which represents the given unit is found - */ - public static DistanceUnits findDistanceUnit(String unit) { - if (MILES.getUnit().equalsIgnoreCase(unit) || unit.equalsIgnoreCase("mi")) { - return MILES; - } - - if (KILOMETERS.getUnit().equalsIgnoreCase(unit)) { - return KILOMETERS; - } - - throw new IllegalArgumentException("Unknown distance unit " + unit); - } - - /** - * Converts the given distance in given DistanceUnit, to a distance in the unit represented by {@code this} - * - * @param distance Distance to convert - * @param from Unit to convert the distance from - * @return Given distance converted to the distance in the given unit - */ - public double convert(double distance, DistanceUnits from) { - if (from == this) { - return distance; - } - return (this == MILES) ? distance / MILES_KILOMETRES_RATIO : distance * MILES_KILOMETRES_RATIO; - } - - /** - * Returns the string representation of the distance unit - * - * @return String representation of the distance unit - */ - public String getUnit() { - return unit; - } - - /** - * Returns the average earth radius - * - * @return the average earth radius - */ - public double earthRadius() { - return earthRadius; - } - - /** - * Returns the circumference of the Earth - * - * @return the circumference of the Earth - */ - public double earthCircumference() { - return earthCircumference; - } -} -