001    /*
002     * Copyright 2010-2013 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.jet.lang.resolve.java.structure.impl;
018    
019    import com.intellij.psi.*;
020    import org.jetbrains.annotations.NotNull;
021    import org.jetbrains.annotations.Nullable;
022    import org.jetbrains.jet.lang.resolve.java.structure.JavaAnnotation;
023    import org.jetbrains.jet.lang.resolve.java.structure.JavaAnnotationArgument;
024    import org.jetbrains.jet.lang.resolve.java.structure.JavaClass;
025    import org.jetbrains.jet.lang.resolve.name.FqName;
026    import org.jetbrains.jet.lang.resolve.name.Name;
027    
028    import java.util.Collection;
029    
030    import static org.jetbrains.jet.lang.resolve.java.structure.impl.JavaElementCollectionFromPsiArrayUtil.namedAnnotationArguments;
031    
032    public class JavaAnnotationImpl extends JavaElementImpl<PsiAnnotation> implements JavaAnnotation {
033        public JavaAnnotationImpl(@NotNull PsiAnnotation psiAnnotation) {
034            super(psiAnnotation);
035        }
036    
037        @Override
038        @Nullable
039        public JavaAnnotationArgument findArgument(@NotNull Name name) {
040            PsiAnnotationMemberValue attribute = getPsi().findAttributeValue(name.asString());
041            return attribute == null ? null : JavaAnnotationArgumentImpl.create(attribute, name);
042        }
043    
044        @Override
045        @NotNull
046        public Collection<JavaAnnotationArgument> getArguments() {
047            return namedAnnotationArguments(getPsi().getParameterList().getAttributes());
048        }
049    
050        @Override
051        @Nullable
052        public FqName getFqName() {
053            String qualifiedName = getPsi().getQualifiedName();
054            return qualifiedName == null ? null : new FqName(qualifiedName);
055        }
056    
057        @Nullable
058        @Override
059        public JavaClass resolve() {
060            PsiJavaCodeReferenceElement referenceElement = getPsi().getNameReferenceElement();
061            if (referenceElement == null) return null;
062    
063            PsiElement resolved = referenceElement.resolve();
064            if (!(resolved instanceof PsiClass)) return null;
065    
066            return new JavaClassImpl((PsiClass) resolved);
067        }
068    }