| /* |
| * 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.psi.statistics; |
| |
| import com.intellij.openapi.components.ServiceManager; |
| import com.intellij.openapi.components.SettingsSavingComponent; |
| import com.intellij.openapi.util.Key; |
| import com.intellij.openapi.util.KeyedExtensionCollector; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public abstract class StatisticsManager implements SettingsSavingComponent { |
| public static final int OBLIVION_THRESHOLD = 7; |
| private static final KeyedExtensionCollector<Statistician,Key> COLLECTOR = new KeyedExtensionCollector<Statistician, Key>("com.intellij.statistician") { |
| @Override |
| @NotNull |
| protected String keyToString(@NotNull final Key key) { |
| return key.toString(); |
| } |
| }; |
| |
| @Nullable |
| public static <T,Loc> StatisticsInfo serialize(Key<? extends Statistician<T,Loc>> key, T element, Loc location) { |
| for (final Statistician<T,Loc> statistician : COLLECTOR.forKey(key)) { |
| final StatisticsInfo info = statistician.serialize(element, location); |
| if (info != null) return info; |
| } |
| return null; |
| } |
| |
| |
| public static StatisticsManager getInstance() { |
| return ServiceManager.getService(StatisticsManager.class); |
| } |
| |
| public abstract int getUseCount(@NotNull StatisticsInfo info); |
| public abstract int getLastUseRecency(@NotNull StatisticsInfo info); |
| public abstract void incUseCount(@NotNull StatisticsInfo info); |
| |
| public <T,Loc> int getUseCount(final Key<? extends Statistician<T, Loc>> key, final T element, final Loc location) { |
| final StatisticsInfo info = serialize(key, element, location); |
| return info == null ? 0 : getUseCount(info); |
| } |
| |
| public <T, Loc> void incUseCount(final Key<? extends Statistician<T, Loc>> key, |
| final T element, |
| final Loc location) { |
| final StatisticsInfo info = serialize(key, element, location); |
| if (info != null) { |
| incUseCount(info); |
| } |
| } |
| |
| /** |
| * @param context |
| * @return infos by this context ordered by usage time: recent first |
| */ |
| public abstract StatisticsInfo[] getAllValues(@NonNls String context); |
| } |