| /* |
| * Copyright 2000-2011 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.roots.libraries.ui; |
| |
| import com.intellij.openapi.fileTypes.FileType; |
| import com.intellij.openapi.fileTypes.FileTypes; |
| import com.intellij.openapi.progress.ProgressIndicator; |
| import com.intellij.openapi.roots.OrderRootType; |
| import com.intellij.openapi.vfs.JarFileSystem; |
| import com.intellij.openapi.vfs.VfsUtil; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.util.Processor; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * Implementation of {@link RootDetector} which detects a root by presence of files of some specified type under it |
| * |
| * @author nik |
| */ |
| public class FileTypeBasedRootFilter extends RootFilter { |
| private final FileType myFileType; |
| |
| public FileTypeBasedRootFilter(OrderRootType rootType, boolean jarDirectory, @NotNull FileType fileType, |
| final String presentableRootTypeName) { |
| super(rootType, jarDirectory, presentableRootTypeName); |
| myFileType = fileType; |
| } |
| |
| @Override |
| public boolean isAccepted(@NotNull VirtualFile rootCandidate, @NotNull final ProgressIndicator progressIndicator) { |
| if (isJarDirectory()) { |
| if (!rootCandidate.isDirectory() || !rootCandidate.isInLocalFileSystem()) { |
| return false; |
| } |
| for (VirtualFile child : rootCandidate.getChildren()) { |
| if (!child.isDirectory() && child.getFileType().equals(FileTypes.ARCHIVE)) { |
| final VirtualFile jarRoot = JarFileSystem.getInstance().getJarRootForLocalFile(child); |
| if (jarRoot != null && containsFileOfType(jarRoot, progressIndicator)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| else { |
| return containsFileOfType(rootCandidate, progressIndicator); |
| } |
| } |
| |
| private boolean containsFileOfType(VirtualFile rootCandidate, final ProgressIndicator progressIndicator) { |
| return !VfsUtil.processFilesRecursively(rootCandidate, new Processor<VirtualFile>() { |
| @Override |
| public boolean process(VirtualFile virtualFile) { |
| progressIndicator.checkCanceled(); |
| if (virtualFile.isDirectory()) { |
| progressIndicator.setText2(virtualFile.getPath()); |
| return true; |
| } |
| return !isFileAccepted(virtualFile); |
| } |
| }); |
| } |
| |
| protected boolean isFileAccepted(VirtualFile virtualFile) { |
| return virtualFile.getFileType().equals(myFileType); |
| } |
| } |