| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * 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 com.intellij.util.xml; |
| |
| import com.intellij.codeInsight.CodeInsightBundle; |
| import com.intellij.psi.xml.XmlElement; |
| import com.intellij.psi.xml.XmlTag; |
| import com.intellij.util.ReflectionUtil; |
| import com.intellij.util.containers.ConcurrentFactoryMap; |
| import com.intellij.xml.util.XmlUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashSet; |
| |
| /** |
| * @author peter |
| */ |
| public class EnumConverter<T extends Enum> extends ResolvingConverter<T>{ |
| private static final ConcurrentFactoryMap<Class,EnumConverter> ourCache = new ConcurrentFactoryMap<Class, EnumConverter>() { |
| @Override |
| @NotNull |
| protected EnumConverter create(final Class key) { |
| return new EnumConverter(key); |
| } |
| }; |
| private final Class<T> myType; |
| |
| private EnumConverter(final Class<T> aClass) { |
| myType = aClass; |
| } |
| |
| public static <T extends Enum> EnumConverter<T> createEnumConverter(Class<T> aClass) { |
| return ourCache.get(aClass); |
| } |
| |
| private String getStringValue(final T anEnum) { |
| return NamedEnumUtil.getEnumValueByElement(anEnum); |
| } |
| |
| @Override |
| public final T fromString(final String s, final ConvertContext context) { |
| return s==null?null:(T)NamedEnumUtil.getEnumElementByValue((Class)myType, s); |
| } |
| |
| @Override |
| public final String toString(final T t, final ConvertContext context) { |
| return t == null? null:getStringValue(t); |
| } |
| |
| @Override |
| public String getErrorMessage(@Nullable final String s, final ConvertContext context) { |
| return CodeInsightBundle.message("error.unknown.enum.value.message", s); |
| } |
| |
| @Override |
| @NotNull |
| public Collection<? extends T> getVariants(final ConvertContext context) { |
| final XmlElement element = context.getXmlElement(); |
| if (element instanceof XmlTag) { |
| final XmlTag simpleContent = XmlUtil.getSchemaSimpleContent((XmlTag)element); |
| if (simpleContent != null && XmlUtil.collectEnumerationValues(simpleContent, new HashSet<String>())) { |
| return Collections.emptyList(); |
| } |
| } |
| return Arrays.asList(myType.getEnumConstants()); |
| } |
| |
| public boolean isExhaustive() { |
| return !ReflectionUtil.isAssignable(NonExhaustiveEnum.class, myType); |
| } |
| } |