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/*
* Copyright 2013 the original author or authors.
*
* Licensed 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.gradle.internal.typeconversion;
import org.gradle.internal.exceptions.DiagnosticsVisitor;
import org.gradle.util.GUtil;
import java.util.ArrayList;
import java.util.List;
public class EnumFromCharSequenceNotationParser> implements NotationConverter {
private final Class type;
public EnumFromCharSequenceNotationParser(Class enumType) {
assert enumType.isEnum() : "resultingType must be enum";
this.type = enumType;
}
@Override
public void convert(CharSequence notation, NotationConvertResult result) throws TypeConversionException {
try {
result.converted(GUtil.toEnum(type, notation));
} catch (IllegalArgumentException e) {
throw new TypeConversionException(e.getMessage(), e);
}
}
@Override
public void describe(DiagnosticsVisitor visitor) {
List values = new ArrayList();
final Enum[] enumConstants = type.getEnumConstants();
for (Enum enumConstant : enumConstants) {
values.add(enumConstant.name());
}
visitor.candidate(String.format("One of the following values: %s", GUtil.toString(values)));
visitor.values(values);
}
}