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/*
 * SonarQube Java
 * Copyright (C) 2012 SonarSource
 * [email protected]
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
 */
package org.sonar.java.model.expression;

import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterators;
import com.sonar.sslr.api.AstNode;
import org.sonar.java.model.AbstractTypedTree;
import org.sonar.java.model.declaration.ClassTreeImpl;
import org.sonar.plugins.java.api.tree.ClassTree;
import org.sonar.plugins.java.api.tree.ExpressionTree;
import org.sonar.plugins.java.api.tree.NewClassTree;
import org.sonar.plugins.java.api.tree.Tree;
import org.sonar.plugins.java.api.tree.TreeVisitor;

import javax.annotation.Nullable;

import java.util.Iterator;
import java.util.List;

public class NewClassTreeImpl extends AbstractTypedTree implements NewClassTree {

  private ExpressionTree enclosingExpression;
  private ExpressionTree identifier;
  private final List arguments;
  @Nullable
  private final ClassTree classBody;

  public NewClassTreeImpl(List arguments, @Nullable ClassTreeImpl classBody, AstNode... children) {
    super(Kind.NEW_CLASS);
    this.enclosingExpression = null;
    this.arguments = Preconditions.checkNotNull(arguments);
    this.classBody = classBody;

    for (AstNode child : children) {
      addChild(child);
    }
  }

  public NewClassTreeImpl(@Nullable ExpressionTree enclosingExpression, ExpressionTree identifier, List arguments, @Nullable ClassTree classBody,
    AstNode... children) {
    super(Kind.NEW_CLASS);
    this.enclosingExpression = enclosingExpression;
    this.identifier = Preconditions.checkNotNull(identifier);
    this.arguments = Preconditions.checkNotNull(arguments);
    this.classBody = classBody;

    for (AstNode child : children) {
      addChild(child);
    }
  }

  public NewClassTreeImpl(AstNode astNode, @Nullable ExpressionTree enclosingExpression, ExpressionTree identifier, List arguments,
    @Nullable ClassTree classBody) {
    super(astNode);
    this.enclosingExpression = enclosingExpression;
    this.identifier = Preconditions.checkNotNull(identifier);
    this.arguments = Preconditions.checkNotNull(arguments);
    this.classBody = classBody;
  }

  public NewClassTreeImpl completeWithIdentifier(ExpressionTree identifier) {
    this.identifier = identifier;

    return this;
  }

  public NewClassTreeImpl completeWithEnclosingExpression(ExpressionTree enclosingExpression) {
    this.enclosingExpression = enclosingExpression;

    return this;
  }

  @Override
  public Kind getKind() {
    return Kind.NEW_CLASS;
  }

  @Nullable
  @Override
  public ExpressionTree enclosingExpression() {
    return enclosingExpression;
  }

  @Override
  public List typeArguments() {
    // TODO implement
    return ImmutableList.of();
  }

  @Override
  public Tree identifier() {
    return identifier;
  }

  @Override
  public List arguments() {
    return arguments;
  }

  @Nullable
  @Override
  public ClassTree classBody() {
    return classBody;
  }

  @Override
  public void accept(TreeVisitor visitor) {
    visitor.visitNewClass(this);
  }

  @Override
  public Iterator childrenIterator() {
    return Iterators.concat(
      Iterators.forArray(
        enclosingExpression,
        identifier
        ),
      arguments.iterator(),
      Iterators.singletonIterator(classBody)
      );
  }
}