| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| JavaVersion |
|
| 4.6;4.6 |
| 1 | /* | |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more | |
| 3 | * contributor license agreements. See the NOTICE file distributed with | |
| 4 | * this work for additional information regarding copyright ownership. | |
| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0 | |
| 6 | * (the "License"); you may not use this file except in compliance with | |
| 7 | * the License. You may obtain a copy of the License at | |
| 8 | * | |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 | * | |
| 11 | * Unless required by applicable law or agreed to in writing, software | |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 | * See the License for the specific language governing permissions and | |
| 15 | * limitations under the License. | |
| 16 | */ | |
| 17 | package org.apache.commons.lang3; | |
| 18 | ||
| 19 | /** | |
| 20 | * <p>An enum representing all the versions of the Java specification. | |
| 21 | * This is intended to mirror available values from the | |
| 22 | * <em>java.specification.version</em> System property. </p> | |
| 23 | * | |
| 24 | * @since 3.0 | |
| 25 | * @version $Id: $ | |
| 26 | */ | |
| 27 | 1 | public enum JavaVersion { |
| 28 | ||
| 29 | /** | |
| 30 | * The Java version reported by Android. This is not an official Java version number. | |
| 31 | */ | |
| 32 | 1 | JAVA_0_9(1.5f, "0.9"), |
| 33 | ||
| 34 | /** | |
| 35 | * Java 1.1. | |
| 36 | */ | |
| 37 | 1 | JAVA_1_1(1.1f, "1.1"), |
| 38 | ||
| 39 | /** | |
| 40 | * Java 1.2. | |
| 41 | */ | |
| 42 | 1 | JAVA_1_2(1.2f, "1.2"), |
| 43 | ||
| 44 | /** | |
| 45 | * Java 1.3. | |
| 46 | */ | |
| 47 | 1 | JAVA_1_3(1.3f, "1.3"), |
| 48 | ||
| 49 | /** | |
| 50 | * Java 1.4. | |
| 51 | */ | |
| 52 | 1 | JAVA_1_4(1.4f, "1.4"), |
| 53 | ||
| 54 | /** | |
| 55 | * Java 1.5. | |
| 56 | */ | |
| 57 | 1 | JAVA_1_5(1.5f, "1.5"), |
| 58 | ||
| 59 | /** | |
| 60 | * Java 1.6. | |
| 61 | */ | |
| 62 | 1 | JAVA_1_6(1.6f, "1.6"), |
| 63 | ||
| 64 | /** | |
| 65 | * Java 1.7. | |
| 66 | */ | |
| 67 | 1 | JAVA_1_7(1.7f, "1.7"), |
| 68 | ||
| 69 | /** | |
| 70 | * Java 1.8. | |
| 71 | */ | |
| 72 | 1 | JAVA_1_8(1.8f, "1.8"); |
| 73 | ||
| 74 | /** | |
| 75 | * The float value. | |
| 76 | */ | |
| 77 | private float value; | |
| 78 | /** | |
| 79 | * The standard name. | |
| 80 | */ | |
| 81 | private String name; | |
| 82 | ||
| 83 | /** | |
| 84 | * Constructor. | |
| 85 | * | |
| 86 | * @param value the float value | |
| 87 | * @param name the standard name, not null | |
| 88 | */ | |
| 89 | 9 | JavaVersion(final float value, final String name) { |
| 90 | 9 | this.value = value; |
| 91 | 9 | this.name = name; |
| 92 | 9 | } |
| 93 | ||
| 94 | //----------------------------------------------------------------------- | |
| 95 | /** | |
| 96 | * <p>Whether this version of Java is at least the version of Java passed in.</p> | |
| 97 | * | |
| 98 | * <p>For example:<br /> | |
| 99 | * {@code myVersion.atLeast(JavaVersion.JAVA_1_4)}<p> | |
| 100 | * | |
| 101 | * @param requiredVersion the version to check against, not null | |
| 102 | * @return true if this version is equal to or greater than the specified version | |
| 103 | */ | |
| 104 | public boolean atLeast(final JavaVersion requiredVersion) { | |
| 105 | 4843 | return this.value >= requiredVersion.value; |
| 106 | } | |
| 107 | ||
| 108 | /** | |
| 109 | * Transforms the given string with a Java version number to the | |
| 110 | * corresponding constant of this enumeration class. This method is used | |
| 111 | * internally. | |
| 112 | * | |
| 113 | * @param nom the Java version as string | |
| 114 | * @return the corresponding enumeration constant or <b>null</b> if the | |
| 115 | * version is unknown | |
| 116 | */ | |
| 117 | // helper for static importing | |
| 118 | static JavaVersion getJavaVersion(final String nom) { | |
| 119 | 1 | return get(nom); |
| 120 | } | |
| 121 | ||
| 122 | /** | |
| 123 | * Transforms the given string with a Java version number to the | |
| 124 | * corresponding constant of this enumeration class. This method is used | |
| 125 | * internally. | |
| 126 | * | |
| 127 | * @param nom the Java version as string | |
| 128 | * @return the corresponding enumeration constant or <b>null</b> if the | |
| 129 | * version is unknown | |
| 130 | */ | |
| 131 | static JavaVersion get(final String nom) { | |
| 132 | 13 | if ("0.9".equals(nom)) { |
| 133 | 1 | return JAVA_0_9; |
| 134 | 12 | } else if ("1.1".equals(nom)) { |
| 135 | 1 | return JAVA_1_1; |
| 136 | 11 | } else if ("1.2".equals(nom)) { |
| 137 | 1 | return JAVA_1_2; |
| 138 | 10 | } else if ("1.3".equals(nom)) { |
| 139 | 1 | return JAVA_1_3; |
| 140 | 9 | } else if ("1.4".equals(nom)) { |
| 141 | 1 | return JAVA_1_4; |
| 142 | 8 | } else if ("1.5".equals(nom)) { |
| 143 | 3 | return JAVA_1_5; |
| 144 | 5 | } else if ("1.6".equals(nom)) { |
| 145 | 1 | return JAVA_1_6; |
| 146 | 4 | } else if ("1.7".equals(nom)) { |
| 147 | 2 | return JAVA_1_7; |
| 148 | 2 | } else if ("1.8".equals(nom)) { |
| 149 | 1 | return JAVA_1_8; |
| 150 | } else { | |
| 151 | 1 | return null; |
| 152 | } | |
| 153 | } | |
| 154 | ||
| 155 | //----------------------------------------------------------------------- | |
| 156 | /** | |
| 157 | * <p>The string value is overridden to return the standard name.</p> | |
| 158 | * | |
| 159 | * <p>For example, <code>"1.5"</code>.</p> | |
| 160 | * | |
| 161 | * @return the name, not null | |
| 162 | */ | |
| 163 | @Override | |
| 164 | public String toString() { | |
| 165 | 1 | return name; |
| 166 | } | |
| 167 | ||
| 168 | } |