| /* |
| * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * This file is available under and governed by the GNU General Public |
| * License version 2 only, as published by the Free Software Foundation. |
| * However, the following notice accompanied the original version of this |
| * file: |
| * |
| * The MIT License |
| * |
| * Copyright (c) 2004-2015 Paul R. Holser, Jr. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| package jdk.internal.joptsimple.util; |
| |
| import static jdk.internal.joptsimple.internal.Strings.*; |
| |
| /** |
| * <p>A simple string key/string value pair.</p> |
| * |
| * <p>This is useful as an argument type for options whose values take on the form {@code key=value}, such as JVM |
| * command line system properties.</p> |
| * |
| * @author <a href="mailto:pholser@alumni.rice.edu">Paul Holser</a> |
| */ |
| public final class KeyValuePair { |
| public final String key; |
| public final String value; |
| |
| private KeyValuePair( String key, String value ) { |
| this.key = key; |
| this.value = value; |
| } |
| |
| /** |
| * Parses a string assumed to be of the form {@code key=value} into its parts. |
| * |
| * @param asString key-value string |
| * @return a key-value pair |
| * @throws NullPointerException if {@code stringRepresentation} is {@code null} |
| */ |
| public static KeyValuePair valueOf( String asString ) { |
| int equalsIndex = asString.indexOf( '=' ); |
| if ( equalsIndex == -1 ) |
| return new KeyValuePair( asString, null ); |
| |
| String aKey = asString.substring( 0, equalsIndex ); |
| String aValue = equalsIndex == asString.length() - 1 ? EMPTY : asString.substring( equalsIndex + 1 ); |
| |
| return new KeyValuePair( aKey, aValue ); |
| } |
| |
| @Override |
| public boolean equals( Object that ) { |
| if ( !( that instanceof KeyValuePair ) ) |
| return false; |
| |
| KeyValuePair other = (KeyValuePair) that; |
| return key.equals( other.key ) && value.equals( other.value ); |
| } |
| |
| @Override |
| public int hashCode() { |
| return key.hashCode() ^ value.hashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| return key + '=' + value; |
| } |
| } |