1 files changed, 104 insertions, 0 deletions
diff --git a/third_party/java/jopt-simple/src/main/java/joptsimple/util/EnumConverter.java b/third_party/java/jopt-simple/src/main/java/joptsimple/util/EnumConverter.java
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index 0000000000..c75b86607f
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+++ b/third_party/java/jopt-simple/src/main/java/joptsimple/util/EnumConverter.java
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+/*
+ The MIT License
+
+ Copyright (c) 2004-2014 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 java.text.MessageFormat;
+import java.util.EnumSet;
+import java.util.Iterator;
+import java.util.ResourceBundle;
+
+import joptsimple.ValueConversionException;
+import joptsimple.ValueConverter;
+
+/**
+ * Converts values to {@link java.lang.Enum}s.
+ *
+ * @author <a href="mailto:christian.ohr@gmail.com">Christian Ohr</a>
+ */
+public abstract class EnumConverter<E extends Enum<E>> implements ValueConverter<E> {
+    private final Class<E> clazz;
+
+    private String delimiters = "[,]";
+
+    /**
+     * This constructor must be called by subclasses, providing the enum class as the parameter.
+     *
+     * @param clazz enum class
+     */
+    protected EnumConverter( Class<E> clazz ) {
+        this.clazz = clazz;
+    }
+
+    @Override
+    public E convert( String value ) {
+        for ( E each : valueType().getEnumConstants() ) {
+            if ( each.name().equalsIgnoreCase( value ) ) {
+                return each;
+            }
+        }
+
+        throw new ValueConversionException( message( value ) );
+    }
+
+    @Override
+    public Class<E> valueType() {
+        return clazz;
+    }
+
+    /**
+     * Sets the delimiters for the message string. Must be a 3-letter string,
+     * where the first character is the prefix, the second character is the
+     * delimiter between the values, and the 3rd character is the suffix.
+     *
+     * @param delimiters delimiters for message string. Default is [,]
+     */
+    public void setDelimiters( String delimiters ) {
+        this.delimiters = delimiters;
+    }
+
+    @Override
+    public String valuePattern() {
+        EnumSet<E> values = EnumSet.allOf( valueType() );
+
+        StringBuilder builder = new StringBuilder();
+        builder.append( delimiters.charAt(0) );
+        for ( Iterator<E> i = values.iterator(); i.hasNext(); ) {
+            builder.append( i.next().toString() );
+            if ( i.hasNext() )
+                builder.append( delimiters.charAt( 1 ) );
+        }
+        builder.append( delimiters.charAt( 2 ) );
+
+        return builder.toString();
+    }
+
+    private String message( String value ) {
+        ResourceBundle bundle = ResourceBundle.getBundle( "joptsimple.ExceptionMessages" );
+        Object[] arguments = new Object[] { value, valuePattern() };
+        String template = bundle.getString( EnumConverter.class.getName() + ".message" );
+        return new MessageFormat( template ).format( arguments );
+    }
+}