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Diffstat (limited to 'third_party/java/jopt-simple/src/main/java/joptsimple/util/KeyValuePair.java')
-rw-r--r-- | third_party/java/jopt-simple/src/main/java/joptsimple/util/KeyValuePair.java | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/third_party/java/jopt-simple/src/main/java/joptsimple/util/KeyValuePair.java b/third_party/java/jopt-simple/src/main/java/joptsimple/util/KeyValuePair.java new file mode 100644 index 0000000000..bdc2424190 --- /dev/null +++ b/third_party/java/jopt-simple/src/main/java/joptsimple/util/KeyValuePair.java @@ -0,0 +1,83 @@ +/* + 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 joptsimple.util; + +import static 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, EMPTY ); + + 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; + } +} |