| /* |
| * Copyright 2000-2012 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.openapi.fileTypes; |
| |
| import com.intellij.internal.statistic.AbstractApplicationUsagesCollector; |
| import com.intellij.internal.statistic.CollectUsagesException; |
| import com.intellij.internal.statistic.beans.GroupDescriptor; |
| import com.intellij.internal.statistic.beans.UsageDescriptor; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.search.FileTypeIndex; |
| import com.intellij.psi.search.GlobalSearchScope; |
| import com.intellij.util.NotNullFunction; |
| import com.intellij.util.containers.ContainerUtil; |
| import com.intellij.util.indexing.FileBasedIndex; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| /** |
| * @author Nikolay Matveev |
| */ |
| public class FileTypeUsagesCollector extends AbstractApplicationUsagesCollector { |
| |
| private static final String GROUP_ID = "file-type"; |
| |
| @NotNull |
| @Override |
| public GroupDescriptor getGroupId() { |
| return GroupDescriptor.create(GROUP_ID); |
| } |
| |
| @NotNull |
| @Override |
| public Set<UsageDescriptor> getProjectUsages(@NotNull final Project project) throws CollectUsagesException { |
| final Set<FileType> usedFileTypes = new HashSet<FileType>(); |
| final FileTypeManager fileTypeManager = FileTypeManager.getInstance(); |
| if (fileTypeManager == null) { |
| throw new CollectUsagesException("Cannot get instance of FileTypeManager"); |
| } |
| final FileType[] registeredFileTypes = fileTypeManager.getRegisteredFileTypes(); |
| for (final FileType fileType : registeredFileTypes) { |
| if (project.isDisposed()) { |
| throw new CollectUsagesException("Project is disposed"); |
| } |
| ApplicationManager.getApplication().runReadAction(new Runnable() { |
| @Override |
| public void run() { |
| FileBasedIndex.getInstance().processValues( |
| FileTypeIndex.NAME, |
| fileType, |
| null, |
| new FileBasedIndex.ValueProcessor<Void>() { |
| @Override |
| public boolean process(VirtualFile file, Void value) { |
| usedFileTypes.add(fileType); |
| return false; |
| } |
| }, GlobalSearchScope.projectScope(project)); |
| } |
| }); |
| } |
| usedFileTypes.add(UnknownFileType.INSTANCE); |
| return ContainerUtil.map2Set(usedFileTypes, new NotNullFunction<FileType, UsageDescriptor>() { |
| @NotNull |
| @Override |
| public UsageDescriptor fun(FileType fileType) { |
| return new UsageDescriptor(fileType.getName(), 1); |
| } |
| }); |
| } |
| } |