| /* |
| * Copyright 2000-2014 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.framework.detection.impl; |
| |
| import com.intellij.framework.detection.FrameworkDetector; |
| import com.intellij.openapi.Disposable; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.fileTypes.FileType; |
| import com.intellij.openapi.util.Pair; |
| import com.intellij.patterns.ElementPattern; |
| import com.intellij.util.EventDispatcher; |
| import com.intellij.util.containers.MultiMap; |
| import com.intellij.util.indexing.*; |
| import com.intellij.util.io.EnumeratorIntegerDescriptor; |
| import com.intellij.util.io.KeyDescriptor; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.*; |
| |
| /** |
| * @author nik |
| */ |
| public class FrameworkDetectionIndex extends ScalarIndexExtension<Integer> { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.framework.detection.impl.FrameworkDetectionIndex"); |
| public static final ID<Integer,Void> NAME = ID.create("FrameworkDetectionIndex"); |
| |
| private final FrameworkDetectorRegistry myRegistry; |
| private final EventDispatcher<FrameworkDetectionIndexListener> myDispatcher = EventDispatcher.create(FrameworkDetectionIndexListener.class); |
| |
| public FrameworkDetectionIndex(FrameworkDetectorRegistry registry) { |
| myRegistry = registry; |
| } |
| |
| public static FrameworkDetectionIndex getInstance() { |
| return EXTENSION_POINT_NAME.findExtension(FrameworkDetectionIndex.class); |
| } |
| |
| @NotNull |
| @Override |
| public ID<Integer, Void> getName() { |
| return NAME; |
| } |
| |
| public void addListener(@NotNull FrameworkDetectionIndexListener listener, @NotNull Disposable parentDisposable) { |
| myDispatcher.addListener(listener, parentDisposable); |
| } |
| |
| @NotNull |
| @Override |
| public DataIndexer<Integer, Void, FileContent> getIndexer() { |
| final MultiMap<FileType, Pair<ElementPattern<FileContent>, Integer>> detectors = new MultiMap<FileType, Pair<ElementPattern<FileContent>, Integer>>(); |
| for (FrameworkDetector detector : FrameworkDetector.EP_NAME.getExtensions()) { |
| detectors.putValue(detector.getFileType(), Pair.create(detector.createSuitableFilePattern(), myRegistry.getDetectorId(detector))); |
| } |
| return new DataIndexer<Integer, Void, FileContent>() { |
| @NotNull |
| @Override |
| public Map<Integer, Void> map(@NotNull FileContent inputData) { |
| final FileType fileType = inputData.getFileType(); |
| if (!detectors.containsKey(fileType)) { |
| return Collections.emptyMap(); |
| } |
| Map<Integer, Void> result = null; |
| for (Pair<ElementPattern<FileContent>, Integer> pair : detectors.get(fileType)) { |
| if (pair.getFirst().accepts(inputData)) { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug(inputData.getFile() + " accepted by detector " + pair.getSecond()); |
| } |
| if (result == null) { |
| result = new HashMap<Integer, Void>(); |
| } |
| myDispatcher.getMulticaster().fileUpdated(inputData.getFile(), pair.getSecond()); |
| result.put(pair.getSecond(), null); |
| } |
| } |
| return result != null ? result : Collections.<Integer, Void>emptyMap(); |
| } |
| }; |
| } |
| |
| @NotNull |
| @Override |
| public KeyDescriptor<Integer> getKeyDescriptor() { |
| return EnumeratorIntegerDescriptor.INSTANCE; |
| } |
| |
| @NotNull |
| @Override |
| public FileBasedIndex.InputFilter getInputFilter() { |
| final Set<FileType> acceptedTypes = new HashSet<FileType>(); |
| for (FrameworkDetector detector : FrameworkDetector.EP_NAME.getExtensions()) { |
| acceptedTypes.add(detector.getFileType()); |
| } |
| return new DefaultFileTypeSpecificInputFilter(acceptedTypes.toArray(new FileType[acceptedTypes.size()])); |
| } |
| |
| @Override |
| public boolean dependsOnFileContent() { |
| return true; |
| } |
| |
| @Override |
| public int getVersion() { |
| return myRegistry.getDetectorsVersion(); |
| } |
| } |