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A packaging of the IntelliJ Community Edition core-api library. This is release number 1 of trunk branch 142.

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/*
 * Copyright 2000-2009 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.
 */

/*
 * @author max
 */
package com.intellij.psi.search;

import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Key;
import com.intellij.openapi.util.UserDataHolderEx;
import org.jetbrains.annotations.NotNull;

public class ProjectScope {
  private static final Key ALL_SCOPE_KEY = new Key("ALL_SCOPE_KEY");
  private static final Key PROJECT_SCOPE_KEY = new Key("PROJECT_SCOPE_KEY");
  private static final Key LIBRARIES_SCOPE_KEY = new Key("LIBRARIES_SCOPE_KEY");
  private static final Key CONTENT_SCOPE_KEY = new Key("CONTENT_SCOPE_KEY");

  private ProjectScope() {
  }

  @NotNull
  public static GlobalSearchScope getAllScope(@NotNull Project project) {
    GlobalSearchScope cached = project.getUserData(ALL_SCOPE_KEY);
    return cached != null ? cached : ((UserDataHolderEx)project).putUserDataIfAbsent(ALL_SCOPE_KEY, ProjectScopeBuilder.getInstance(project).buildAllScope());
  }

  @NotNull
  public static GlobalSearchScope getProjectScope(@NotNull Project project) {
    GlobalSearchScope cached = project.getUserData(PROJECT_SCOPE_KEY);
    return cached != null ? cached : ((UserDataHolderEx)project).putUserDataIfAbsent(PROJECT_SCOPE_KEY, ProjectScopeBuilder.getInstance(project).buildProjectScope());
  }

  @NotNull
  public static GlobalSearchScope getLibrariesScope(@NotNull Project project) {
    GlobalSearchScope cached = project.getUserData(LIBRARIES_SCOPE_KEY);
    return cached != null ? cached : ((UserDataHolderEx)project).putUserDataIfAbsent(LIBRARIES_SCOPE_KEY, ProjectScopeBuilder.getInstance(project).buildLibrariesScope());
  }

  @NotNull
  public static GlobalSearchScope getContentScope(@NotNull Project project) {
    GlobalSearchScope cached = project.getUserData(CONTENT_SCOPE_KEY);
    return cached != null ? cached : ((UserDataHolderEx)project).putUserDataIfAbsent(CONTENT_SCOPE_KEY, ProjectScopeBuilder.getInstance(project).buildContentScope());
  }
}