| /* |
| * 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.file.exclude; |
| |
| import com.intellij.openapi.components.PersistentStateComponent; |
| import com.intellij.openapi.vfs.VfsUtilCore; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.openapi.vfs.VirtualFileManager; |
| import com.intellij.openapi.vfs.VirtualFileWithId; |
| import com.intellij.util.containers.HashSet; |
| import org.jdom.Attribute; |
| import org.jdom.Element; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.*; |
| |
| /** |
| * @author Rustam Vishnyakov |
| */ |
| public class PersistentFileSetManager implements PersistentStateComponent<Element> { |
| private static final String FILE_ELEMENT = "file"; |
| private static final String PATH_ATTR = "url"; |
| |
| private final Set<VirtualFile> myFiles = new HashSet<VirtualFile>(); |
| |
| protected boolean addFile(VirtualFile file) { |
| if (!(file instanceof VirtualFileWithId) || file.isDirectory()) return false; |
| myFiles.add(file); |
| return true; |
| } |
| |
| protected boolean containsFile(VirtualFile file) { |
| return myFiles.contains(file); |
| } |
| |
| protected boolean removeFile(VirtualFile file) { |
| if (!myFiles.contains(file)) return false; |
| myFiles.remove(file); |
| return true; |
| } |
| |
| @NotNull |
| public Collection<VirtualFile> getFiles() { |
| return myFiles; |
| } |
| |
| public Collection<VirtualFile> getSortedFiles() { |
| List<VirtualFile> sortedFiles = new ArrayList<VirtualFile>(); |
| sortedFiles.addAll(myFiles); |
| Collections.sort(sortedFiles, new Comparator<VirtualFile>() { |
| @Override |
| public int compare(final VirtualFile file1, final VirtualFile file2) { |
| return file1.getPath().toLowerCase().compareTo(file2.getPath().toLowerCase()); |
| } |
| }); |
| return sortedFiles; |
| } |
| |
| @Override |
| public Element getState() { |
| final Element root = new Element("root"); |
| for (VirtualFile vf : getSortedFiles()) { |
| final Element vfElement = new Element(FILE_ELEMENT); |
| final Attribute filePathAttr = new Attribute(PATH_ATTR, VfsUtilCore.pathToUrl(vf.getPath())); |
| vfElement.setAttribute(filePathAttr); |
| root.addContent(vfElement); |
| } |
| return root; |
| } |
| |
| @Override |
| public void loadState(Element state) { |
| final VirtualFileManager vfManager = VirtualFileManager.getInstance(); |
| for (Object child : state.getChildren(FILE_ELEMENT)) { |
| if (child instanceof Element) { |
| final Element fileElement = (Element)child; |
| final Attribute filePathAttr = fileElement.getAttribute(PATH_ATTR); |
| if (filePathAttr != null) { |
| final String filePath = filePathAttr.getValue(); |
| VirtualFile vf = vfManager.findFileByUrl(filePath); |
| if (vf != null) { |
| myFiles.add(vf); |
| } |
| } |
| } |
| } |
| } |
| |
| } |