plugins/groovy/groovy-psi/src/org/jetbrains/plugins/groovy/lang/psi/impl/auxiliary/annotation/GrAnnotationArgumentListImpl.java

/*
 * 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 org.jetbrains.plugins.groovy.lang.psi.impl.auxiliary.annotation;

import com.intellij.lang.ASTNode;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.psi.PsiAnnotation;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiNameValuePair;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.plugins.groovy.lang.lexer.GroovyTokenTypes;
import org.jetbrains.plugins.groovy.lang.parser.GroovyElementTypes;
import org.jetbrains.plugins.groovy.lang.psi.GroovyElementVisitor;
import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementFactory;
import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.annotation.GrAnnotationArgumentList;
import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.annotation.GrAnnotationNameValuePair;
import org.jetbrains.plugins.groovy.lang.psi.impl.GroovyPsiElementImpl;

import java.util.ArrayList;
import java.util.List;

/**
 * @author: Dmitry.Krasilschikov
 * @date: 04.04.2007
 */
public class GrAnnotationArgumentListImpl extends GroovyPsiElementImpl implements GrAnnotationArgumentList {
  private static final Logger LOG =
    Logger.getInstance("#org.jetbrains.plugins.groovy.lang.psi.impl.auxiliary.annotation.GrAnnotationArgumentListImpl");

  public GrAnnotationArgumentListImpl(@NotNull ASTNode node) {
    super(node);
  }

  @Override
  public void accept(GroovyElementVisitor visitor) {
    visitor.visitAnnotationArgumentList(this);
  }

  public String toString() {
    return "Annotation arguments";
  }

  @Override
  @NotNull
  public GrAnnotationNameValuePair[] getAttributes() {
    List<GrAnnotationNameValuePair> result = new ArrayList<GrAnnotationNameValuePair>();
    for (PsiElement cur = getFirstChild(); cur != null; cur = cur.getNextSibling()) {
      if (cur instanceof GrAnnotationNameValuePair) result.add((GrAnnotationNameValuePair)cur);
    }
    return result.toArray(new GrAnnotationNameValuePair[result.size()]);
  }

  @Override
  public ASTNode addInternal(ASTNode first, ASTNode last, ASTNode anchor, Boolean before) {
    if (first.getElementType() == GroovyElementTypes.ANNOTATION_MEMBER_VALUE_PAIR && last.getElementType() ==
                                                                                     GroovyElementTypes.ANNOTATION_MEMBER_VALUE_PAIR) {
      ASTNode lparenth = getNode().getFirstChildNode();
      ASTNode rparenth = getNode().getLastChildNode();
      if (lparenth == null) {
        getNode().addLeaf(GroovyTokenTypes.mLPAREN, "(", null);
      }
      if (rparenth == null) {
        getNode().addLeaf(GroovyTokenTypes.mRPAREN, ")", null);
      }

      final PsiNameValuePair[] nodes = getAttributes();
      if (nodes.length == 1) {
        final PsiNameValuePair pair = nodes[0];
        if (pair.getName() == null) {
          final String text = pair.getValue().getText();
          try {
            final PsiAnnotation annotation = GroovyPsiElementFactory.getInstance(getProject()).createAnnotationFromText("@AAA(value = " + text + ")");
            getNode().replaceChild(pair.getNode(), annotation.getParameterList().getAttributes()[0].getNode());
          }
          catch (IncorrectOperationException e) {
            LOG.error(e);
          }
        }
      }

      if (anchor == null && before != null) {
        anchor = before.booleanValue() ? getNode().getLastChildNode() : getNode().getFirstChildNode();
      }
    }

    return super.addInternal(first, last, anchor, before);
  }

}